TY  - CONF
AU  - Krstić, Milena
AU  - Santibanez, J
AU  - Poljarević, Jelena
AU  - Nikolić, Stefan
AU  - Grgurić-Šipka, Sanja
AU  - Borozan, Sunčica
PY  - 2022
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5823
AB  - Ruthenium complexes are of significant interest in the treatment of malignancies. Ru(II)
complexes with N-alkylphenothiazines (chlorpromazine, trifluoperazine, and thioridazine)
were used in the study of possible apoptosis pathways in K562 cells.
Spectrophotometrically extracellular LDH was quantified and immunochemical expression
of COX-2, t-JNK, p-JNK and -actin after SDS electrophoresis was determined. The
Ru(II) complex with trifluoperazine at a concentration of 10 μM reduced t-JNK
expression, inhibited COX-2 by about 42%, significantly increased the amount of
extracellular LDH compared to the untreated K562 cells and thus confirmed apoptosis.
AB  - U cilju pronalaženja adekvatne terapije u lečenju maligniteta kompleksi rutenijuma
pokazali su zavidan potencijal. Kompleksi Ru(II) sa N-alkilfenotiazinima,
hlorpromazinom, trifluoperazinom i tioridazinom, korišćeni su u ispitivanju mogućih
puteva apoptoze u K562 ćelijama. Ispitivana je spektrofotometrijski ekstracelularna LDH,
ekspresija COX-2, t-JNK, p-JNK i β-aktina imunohemijski nakon SDS elektroforeze.
Kompleks Ru(II) sa trifluoperazinom u koncentraciji od 10 µM smanjuje ekspresiju t-JNK,
inhibira COX-2 oko 42%, značajno povećava količinu ekstracelularne LDH u odnosu na
netretirane K562 ćelije i time potvrdjuje apoptozu ovih ćelija.
PB  - Belgrade : Serbian Chemical Society
C3  - 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, 9th-10th June, 2022. In: Book of Abstracts and Proceedings
T1  - Influence of Ru(II) complex on possible pathways of apoptosis in K562 leukemia cells
T1  - Uticaj kompleksa Ru(II) na moguće puteve apoptoze u K562 ćelijama leukemije
SP  - 89
EP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_cherry_5823
ER  - 

@conference{
author = "Krstić, Milena and Santibanez, J and Poljarević, Jelena and Nikolić, Stefan and Grgurić-Šipka, Sanja and Borozan, Sunčica",
year = "2022",
abstract = "Ruthenium complexes are of significant interest in the treatment of malignancies. Ru(II)
complexes with N-alkylphenothiazines (chlorpromazine, trifluoperazine, and thioridazine)
were used in the study of possible apoptosis pathways in K562 cells.
Spectrophotometrically extracellular LDH was quantified and immunochemical expression
of COX-2, t-JNK, p-JNK and -actin after SDS electrophoresis was determined. The
Ru(II) complex with trifluoperazine at a concentration of 10 μM reduced t-JNK
expression, inhibited COX-2 by about 42%, significantly increased the amount of
extracellular LDH compared to the untreated K562 cells and thus confirmed apoptosis., U cilju pronalaženja adekvatne terapije u lečenju maligniteta kompleksi rutenijuma
pokazali su zavidan potencijal. Kompleksi Ru(II) sa N-alkilfenotiazinima,
hlorpromazinom, trifluoperazinom i tioridazinom, korišćeni su u ispitivanju mogućih
puteva apoptoze u K562 ćelijama. Ispitivana je spektrofotometrijski ekstracelularna LDH,
ekspresija COX-2, t-JNK, p-JNK i β-aktina imunohemijski nakon SDS elektroforeze.
Kompleks Ru(II) sa trifluoperazinom u koncentraciji od 10 µM smanjuje ekspresiju t-JNK,
inhibira COX-2 oko 42%, značajno povećava količinu ekstracelularne LDH u odnosu na
netretirane K562 ćelije i time potvrdjuje apoptozu ovih ćelija.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, 9th-10th June, 2022. In: Book of Abstracts and Proceedings",
title = "Influence of Ru(II) complex on possible pathways of apoptosis in K562 leukemia cells, Uticaj kompleksa Ru(II) na moguće puteve apoptoze u K562 ćelijama leukemije",
pages = "89-89",
url = "https://hdl.handle.net/21.15107/rcub_cherry_5823"
}

Krstić, M., Santibanez, J., Poljarević, J., Nikolić, S., Grgurić-Šipka, S.,& Borozan, S.. (2022). Influence of Ru(II) complex on possible pathways of apoptosis in K562 leukemia cells. in 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, 9th-10th June, 2022. In: Book of Abstracts and Proceedings
Belgrade : Serbian Chemical Society., 89-89.
https://hdl.handle.net/21.15107/rcub_cherry_5823

Krstić M, Santibanez J, Poljarević J, Nikolić S, Grgurić-Šipka S, Borozan S. Influence of Ru(II) complex on possible pathways of apoptosis in K562 leukemia cells. in 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, 9th-10th June, 2022. In: Book of Abstracts and Proceedings. 2022;:89-89.
https://hdl.handle.net/21.15107/rcub_cherry_5823 .

Krstić, Milena, Santibanez, J, Poljarević, Jelena, Nikolić, Stefan, Grgurić-Šipka, Sanja, Borozan, Sunčica, "Influence of Ru(II) complex on possible pathways of apoptosis in K562 leukemia cells" in 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, 9th-10th June, 2022. In: Book of Abstracts and Proceedings (2022):89-89,
https://hdl.handle.net/21.15107/rcub_cherry_5823 .

TY  - DATA
AU  - Borozan, Sunčica
AU  - Zlatović, Mario
AU  - Stojanović, Srđan Đ.
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3344
PB  - Springer, New York
T2  - Journal of Biological Inorganic Chemistry
T1  - Supplementary data for the article: Borozan, S. Z.; Zlatović, M. V.; Stojanović, S. Đ. Anion–π Interactions in Complexes of Proteins and Halogen-Containing Amino Acids. Journal of Biological Inorganic Chemistry 2016, 21 (3), 357–368. https://doi.org/10.1007/s00775-016-1346-y
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3344
ER  - 

@misc{
author = "Borozan, Sunčica and Zlatović, Mario and Stojanović, Srđan Đ.",
year = "2016",
publisher = "Springer, New York",
journal = "Journal of Biological Inorganic Chemistry",
title = "Supplementary data for the article: Borozan, S. Z.; Zlatović, M. V.; Stojanović, S. Đ. Anion–π Interactions in Complexes of Proteins and Halogen-Containing Amino Acids. Journal of Biological Inorganic Chemistry 2016, 21 (3), 357–368. https://doi.org/10.1007/s00775-016-1346-y",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3344"
}

Borozan, S., Zlatović, M.,& Stojanović, S. Đ.. (2016). Supplementary data for the article: Borozan, S. Z.; Zlatović, M. V.; Stojanović, S. Đ. Anion–π Interactions in Complexes of Proteins and Halogen-Containing Amino Acids. Journal of Biological Inorganic Chemistry 2016, 21 (3), 357–368. https://doi.org/10.1007/s00775-016-1346-y. in Journal of Biological Inorganic Chemistry
Springer, New York..
https://hdl.handle.net/21.15107/rcub_cherry_3344

Borozan S, Zlatović M, Stojanović SĐ. Supplementary data for the article: Borozan, S. Z.; Zlatović, M. V.; Stojanović, S. Đ. Anion–π Interactions in Complexes of Proteins and Halogen-Containing Amino Acids. Journal of Biological Inorganic Chemistry 2016, 21 (3), 357–368. https://doi.org/10.1007/s00775-016-1346-y. in Journal of Biological Inorganic Chemistry. 2016;.
https://hdl.handle.net/21.15107/rcub_cherry_3344 .

Borozan, Sunčica, Zlatović, Mario, Stojanović, Srđan Đ., "Supplementary data for the article: Borozan, S. Z.; Zlatović, M. V.; Stojanović, S. Đ. Anion–π Interactions in Complexes of Proteins and Halogen-Containing Amino Acids. Journal of Biological Inorganic Chemistry 2016, 21 (3), 357–368. https://doi.org/10.1007/s00775-016-1346-y" in Journal of Biological Inorganic Chemistry (2016),
https://hdl.handle.net/21.15107/rcub_cherry_3344 .

TY  - JOUR
AU  - Borozan, Sunčica
AU  - Zlatović, Mario
AU  - Stojanović, Srđan Đ.
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1930
AB  - We analyzed the potential influence of anion-pi interactions on the stability of complexes of proteins and halogen-containing non-natural amino acids. Anion-pi interactions are distance and orientation dependent and our ab initio calculations showed that their energy can be lower than -8 kcal mol(-1), while most of their interaction energies lie in the range from -1 to -4 kcal mol(-1). About 20 % of these interactions were found to be repulsive. We have observed that Tyr has the highest occurrence among the aromatic residues involved in anion-pi interactions, while His made the least contribution. Furthermore, our study showed that 67 % of total interactions in the dataset are multiple anion-pi interactions. Most of the amino acid residues involved in anion-pi interactions tend to be buried in the solvent-excluded environment. The majority of the anion-pi interacting residues are located in regions with helical secondary structure. Analysis of stabilization centers for these complexes showed that all of the six residues capable of anion-pi interactions are important in locating one or more of such centers. We found that anion-pi interacting residues are sometimes involved in simultaneous interactions with halogens as well. With all that in mind, we can conclude that the anion-pi interactions can show significant influence on molecular organization and on the structural stability of the complexes of proteins and halogen-containing non-natural amino acids. Their influence should not be neglected in supramolecular chemistry and crystal engineering fields as well.
PB  - Springer, New York
T2  - Journal of Biological Inorganic Chemistry
T1  - Anion-pi interactions in complexes of proteins and halogen-containing amino acids
VL  - 21
IS  - 3
SP  - 357
EP  - 368
DO  - 10.1007/s00775-016-1346-y
ER  - 

@article{
author = "Borozan, Sunčica and Zlatović, Mario and Stojanović, Srđan Đ.",
year = "2016",
abstract = "We analyzed the potential influence of anion-pi interactions on the stability of complexes of proteins and halogen-containing non-natural amino acids. Anion-pi interactions are distance and orientation dependent and our ab initio calculations showed that their energy can be lower than -8 kcal mol(-1), while most of their interaction energies lie in the range from -1 to -4 kcal mol(-1). About 20 % of these interactions were found to be repulsive. We have observed that Tyr has the highest occurrence among the aromatic residues involved in anion-pi interactions, while His made the least contribution. Furthermore, our study showed that 67 % of total interactions in the dataset are multiple anion-pi interactions. Most of the amino acid residues involved in anion-pi interactions tend to be buried in the solvent-excluded environment. The majority of the anion-pi interacting residues are located in regions with helical secondary structure. Analysis of stabilization centers for these complexes showed that all of the six residues capable of anion-pi interactions are important in locating one or more of such centers. We found that anion-pi interacting residues are sometimes involved in simultaneous interactions with halogens as well. With all that in mind, we can conclude that the anion-pi interactions can show significant influence on molecular organization and on the structural stability of the complexes of proteins and halogen-containing non-natural amino acids. Their influence should not be neglected in supramolecular chemistry and crystal engineering fields as well.",
publisher = "Springer, New York",
journal = "Journal of Biological Inorganic Chemistry",
title = "Anion-pi interactions in complexes of proteins and halogen-containing amino acids",
volume = "21",
number = "3",
pages = "357-368",
doi = "10.1007/s00775-016-1346-y"
}

Borozan, S., Zlatović, M.,& Stojanović, S. Đ.. (2016). Anion-pi interactions in complexes of proteins and halogen-containing amino acids. in Journal of Biological Inorganic Chemistry
Springer, New York., 21(3), 357-368.
https://doi.org/10.1007/s00775-016-1346-y

Borozan S, Zlatović M, Stojanović SĐ. Anion-pi interactions in complexes of proteins and halogen-containing amino acids. in Journal of Biological Inorganic Chemistry. 2016;21(3):357-368.
doi:10.1007/s00775-016-1346-y .

Borozan, Sunčica, Zlatović, Mario, Stojanović, Srđan Đ., "Anion-pi interactions in complexes of proteins and halogen-containing amino acids" in Journal of Biological Inorganic Chemistry, 21, no. 3 (2016):357-368,
https://doi.org/10.1007/s00775-016-1346-y . .

TY  - JOUR
AU  - Krstić, Milena
AU  - Sovilj, Sofija P.
AU  - Borozan, Sunčica
AU  - Rančić, Milica
AU  - Poljarević, Jelena
AU  - Grgurić-Šipka, Sanja
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2351
AB  - Phenothiazines are a large group of heterocyclic, aromatic molecules with nitrogen and sulphur between two benzene rings. Their derivatives, N-alkylphenothiazines have substituent on heterocyclic nitrogen atom which gives them different properties. Also, a series of these molecules have substitution on carbon atom at place 2 of phenothiazine benzene ring. Alkylphenothiazines contain aminoalkyl substituent and their alkyl, acyl and sulphonil derivatives, as well as monocyclic and bicyclic heterocycles attached at thiazine nitrogen atom or directly linked to benzene ring. The N-alkylphenothiazines have been known as antipsychotic drugs, but they also possess antibacterial, antifungal, anticancer activity, and ability to react with macromolecules and to coordinate to the metals. Metal complexes with N-alkylphenothiazines are biological active compounds with different antimicrobial activities and cytotoxic effect against tumor cell lines. The large field of application of N-alkylphenothiazines is very attractive in terms of synthesis of new related derivatives, metal complexes, studying their properties and applications. This article presents a review of the literature and a contemporary view at N-alkylphenothiazines - their synthesis and application, as well as their metal complexes which have promising biological effects.
PB  - Assoc Chemical Engineers Serbia, Belgrade
T2  - Hemijska industrija
T1  - N-alkylphenothiazines - synthesis, structure and application as ligands in metal complexes
VL  - 70
IS  - 4
SP  - 461
EP  - 471
DO  - 10.2298/HEMIND150331052K
ER  - 

@article{
author = "Krstić, Milena and Sovilj, Sofija P. and Borozan, Sunčica and Rančić, Milica and Poljarević, Jelena and Grgurić-Šipka, Sanja",
year = "2016",
abstract = "Phenothiazines are a large group of heterocyclic, aromatic molecules with nitrogen and sulphur between two benzene rings. Their derivatives, N-alkylphenothiazines have substituent on heterocyclic nitrogen atom which gives them different properties. Also, a series of these molecules have substitution on carbon atom at place 2 of phenothiazine benzene ring. Alkylphenothiazines contain aminoalkyl substituent and their alkyl, acyl and sulphonil derivatives, as well as monocyclic and bicyclic heterocycles attached at thiazine nitrogen atom or directly linked to benzene ring. The N-alkylphenothiazines have been known as antipsychotic drugs, but they also possess antibacterial, antifungal, anticancer activity, and ability to react with macromolecules and to coordinate to the metals. Metal complexes with N-alkylphenothiazines are biological active compounds with different antimicrobial activities and cytotoxic effect against tumor cell lines. The large field of application of N-alkylphenothiazines is very attractive in terms of synthesis of new related derivatives, metal complexes, studying their properties and applications. This article presents a review of the literature and a contemporary view at N-alkylphenothiazines - their synthesis and application, as well as their metal complexes which have promising biological effects.",
publisher = "Assoc Chemical Engineers Serbia, Belgrade",
journal = "Hemijska industrija",
title = "N-alkylphenothiazines - synthesis, structure and application as ligands in metal complexes",
volume = "70",
number = "4",
pages = "461-471",
doi = "10.2298/HEMIND150331052K"
}

Krstić, M., Sovilj, S. P., Borozan, S., Rančić, M., Poljarević, J.,& Grgurić-Šipka, S.. (2016). N-alkylphenothiazines - synthesis, structure and application as ligands in metal complexes. in Hemijska industrija
Assoc Chemical Engineers Serbia, Belgrade., 70(4), 461-471.
https://doi.org/10.2298/HEMIND150331052K

Krstić M, Sovilj SP, Borozan S, Rančić M, Poljarević J, Grgurić-Šipka S. N-alkylphenothiazines - synthesis, structure and application as ligands in metal complexes. in Hemijska industrija. 2016;70(4):461-471.
doi:10.2298/HEMIND150331052K .

Krstić, Milena, Sovilj, Sofija P., Borozan, Sunčica, Rančić, Milica, Poljarević, Jelena, Grgurić-Šipka, Sanja, "N-alkylphenothiazines - synthesis, structure and application as ligands in metal complexes" in Hemijska industrija, 70, no. 4 (2016):461-471,
https://doi.org/10.2298/HEMIND150331052K . .

TY  - JOUR
AU  - Krstić, Milena
AU  - Borozan, Sunčica
AU  - Sovilj, Sofija P.
AU  - Grgurić-Šipka, Sanja
AU  - Poljarević, Jelena
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2387
AB  - The purpose of the present study was to investigate and compare the effects of two ruthenium complexes with trifl uoperazine on acethylcholinesterase enzyme activity and lactate dehydrogenase levels in vivo under physiological conditions in rats blood. Complexes 1 and 2 showed positive effects on acethylcholinesterase at all doses and did not disturb its normal activity. Total LDH activity was inhibited in the presence of both complexes, but Ru(II) complexes showed different effects on the activity of LDH isoenzymes. The activities of LDH1 and LDH2 isoenzymes were decreased in all applied doses of the complex 2, while the activity of LDH2 reduced using complex 1 in the same doses. Results of the present study suggest the neuro-and cardio protective potential of oral administration of complexes 1 and 2, as non-toxic compounds under physiological conditions. These protective effects are the result of their potent antioxidant activity.
AB  - Cilj ovog rada je da se ispitaju i uporede efekti dva kompleksa rutenijuma sa trifluoperazinom na aktivnost enzima acetilholinesteraze i laktat-dehidrogenase in vivo pod fiziološkim uslovima u krvi pacova. Kompleksi 1 i 2 pokazali su pozitivan efekat na aktivnost acetiholinesteraze u svim primenjenim dozama. Ukupna aktivnost LDH je inhibirana u prisustvu oba kompleksa, ali kompleksi Ru(II) pokazuju različite rezultate na izoenzimske oblike ovog enzima. Aktivnosti izoenzima LDH1 i LDH2 su smanjene u svim primenjenim dozama kompleksa 2, dok kompleks 1 smanjuje aktivnost samo izoenzima LDH2 u tim istim koncentracijama. Rezultati prikazanog istraživanja ukazuju na neuro - i kardio zaštitni potencijal oralne primene kompleksa 1 i 2, kao netoksičnih jedinjenja pod fiziološkim uslovima, indukovano preko njihovog snažnog antioksidativnog efekta.
PB  - De Gruyter Open Ltd, Warsaw
T2  - Acta Veterinaria, Beograd
T1  - In Vivo Enzymes Activities of Some Ru(Ii) Compounds with N-Alkylphenothiazines
T1  - In vivo ispitivanje enzimske aktivnosti nekih Ru(II) jedinjenja sa N-alkilfenotiazinima
VL  - 66
IS  - 4
SP  - 497
EP  - 508
DO  - 10.1515/acve-2016-0043
ER  - 

@article{
author = "Krstić, Milena and Borozan, Sunčica and Sovilj, Sofija P. and Grgurić-Šipka, Sanja and Poljarević, Jelena",
year = "2016",
abstract = "The purpose of the present study was to investigate and compare the effects of two ruthenium complexes with trifl uoperazine on acethylcholinesterase enzyme activity and lactate dehydrogenase levels in vivo under physiological conditions in rats blood. Complexes 1 and 2 showed positive effects on acethylcholinesterase at all doses and did not disturb its normal activity. Total LDH activity was inhibited in the presence of both complexes, but Ru(II) complexes showed different effects on the activity of LDH isoenzymes. The activities of LDH1 and LDH2 isoenzymes were decreased in all applied doses of the complex 2, while the activity of LDH2 reduced using complex 1 in the same doses. Results of the present study suggest the neuro-and cardio protective potential of oral administration of complexes 1 and 2, as non-toxic compounds under physiological conditions. These protective effects are the result of their potent antioxidant activity., Cilj ovog rada je da se ispitaju i uporede efekti dva kompleksa rutenijuma sa trifluoperazinom na aktivnost enzima acetilholinesteraze i laktat-dehidrogenase in vivo pod fiziološkim uslovima u krvi pacova. Kompleksi 1 i 2 pokazali su pozitivan efekat na aktivnost acetiholinesteraze u svim primenjenim dozama. Ukupna aktivnost LDH je inhibirana u prisustvu oba kompleksa, ali kompleksi Ru(II) pokazuju različite rezultate na izoenzimske oblike ovog enzima. Aktivnosti izoenzima LDH1 i LDH2 su smanjene u svim primenjenim dozama kompleksa 2, dok kompleks 1 smanjuje aktivnost samo izoenzima LDH2 u tim istim koncentracijama. Rezultati prikazanog istraživanja ukazuju na neuro - i kardio zaštitni potencijal oralne primene kompleksa 1 i 2, kao netoksičnih jedinjenja pod fiziološkim uslovima, indukovano preko njihovog snažnog antioksidativnog efekta.",
publisher = "De Gruyter Open Ltd, Warsaw",
journal = "Acta Veterinaria, Beograd",
title = "In Vivo Enzymes Activities of Some Ru(Ii) Compounds with N-Alkylphenothiazines, In vivo ispitivanje enzimske aktivnosti nekih Ru(II) jedinjenja sa N-alkilfenotiazinima",
volume = "66",
number = "4",
pages = "497-508",
doi = "10.1515/acve-2016-0043"
}

Krstić, M., Borozan, S., Sovilj, S. P., Grgurić-Šipka, S.,& Poljarević, J.. (2016). In Vivo Enzymes Activities of Some Ru(Ii) Compounds with N-Alkylphenothiazines. in Acta Veterinaria, Beograd
De Gruyter Open Ltd, Warsaw., 66(4), 497-508.
https://doi.org/10.1515/acve-2016-0043

Krstić M, Borozan S, Sovilj SP, Grgurić-Šipka S, Poljarević J. In Vivo Enzymes Activities of Some Ru(Ii) Compounds with N-Alkylphenothiazines. in Acta Veterinaria, Beograd. 2016;66(4):497-508.
doi:10.1515/acve-2016-0043 .

Krstić, Milena, Borozan, Sunčica, Sovilj, Sofija P., Grgurić-Šipka, Sanja, Poljarević, Jelena, "In Vivo Enzymes Activities of Some Ru(Ii) Compounds with N-Alkylphenothiazines" in Acta Veterinaria, Beograd, 66, no. 4 (2016):497-508,
https://doi.org/10.1515/acve-2016-0043 . .

TY  - JOUR
AU  - Zlatović, Mario
AU  - Borozan, Sunčica
AU  - Nikolić, Milan
AU  - Stojanović, Srđan Đ.
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1705
AB  - In this work, we have analyzed the influence of anion-pi interactions on the stability of high resolution protein-porphyrin complex crystal structures. The anion-pi interactions are distance and orientation dependent. Results of ab initio calculations of stabilization energies showed that they lie mostly in the range from -2 to -4 kcal mol(-1) with some of the anion-pi interactions having stabilization energies of up to -16 kcal mol(-1). In the anionic group, the numbers of anion-pi interactions involving Asp and Glu are similar, while His is more often involved in these interactions than other aromatic residues. Furthermore, our study showed that in the dataset used about 70% of the investigated anion-pi interactions are in fact multiple anion-pi interactions. Our results suggest that interacting residues are predominantly located in buried and partially buried regions. The secondary structure of the anion-pi interaction involving residues shows that most of the interacting residues preferred to be in helix conformations. Significant numbers of aromatic residues involved in anion-pi interactions have one or more stabilization centers, providing additional stability to the protein-porphyrin complexes. The conservation patterns indicate that more than half of the residues involved in these interactions are evolutionarily conserved, indicating that the contribution of the anion-pi interaction is an important factor for the structural stability of the investigated protein-porphyrin complexes.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Anion-pi interactions in protein-porphyrin complexes
VL  - 5
IS  - 48
SP  - 38361
EP  - 38372
DO  - 10.1039/c5ra03373j
ER  - 

@article{
author = "Zlatović, Mario and Borozan, Sunčica and Nikolić, Milan and Stojanović, Srđan Đ.",
year = "2015",
abstract = "In this work, we have analyzed the influence of anion-pi interactions on the stability of high resolution protein-porphyrin complex crystal structures. The anion-pi interactions are distance and orientation dependent. Results of ab initio calculations of stabilization energies showed that they lie mostly in the range from -2 to -4 kcal mol(-1) with some of the anion-pi interactions having stabilization energies of up to -16 kcal mol(-1). In the anionic group, the numbers of anion-pi interactions involving Asp and Glu are similar, while His is more often involved in these interactions than other aromatic residues. Furthermore, our study showed that in the dataset used about 70% of the investigated anion-pi interactions are in fact multiple anion-pi interactions. Our results suggest that interacting residues are predominantly located in buried and partially buried regions. The secondary structure of the anion-pi interaction involving residues shows that most of the interacting residues preferred to be in helix conformations. Significant numbers of aromatic residues involved in anion-pi interactions have one or more stabilization centers, providing additional stability to the protein-porphyrin complexes. The conservation patterns indicate that more than half of the residues involved in these interactions are evolutionarily conserved, indicating that the contribution of the anion-pi interaction is an important factor for the structural stability of the investigated protein-porphyrin complexes.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Anion-pi interactions in protein-porphyrin complexes",
volume = "5",
number = "48",
pages = "38361-38372",
doi = "10.1039/c5ra03373j"
}

Zlatović, M., Borozan, S., Nikolić, M.,& Stojanović, S. Đ.. (2015). Anion-pi interactions in protein-porphyrin complexes. in RSC Advances
Royal Soc Chemistry, Cambridge., 5(48), 38361-38372.
https://doi.org/10.1039/c5ra03373j

Zlatović M, Borozan S, Nikolić M, Stojanović SĐ. Anion-pi interactions in protein-porphyrin complexes. in RSC Advances. 2015;5(48):38361-38372.
doi:10.1039/c5ra03373j .

Zlatović, Mario, Borozan, Sunčica, Nikolić, Milan, Stojanović, Srđan Đ., "Anion-pi interactions in protein-porphyrin complexes" in RSC Advances, 5, no. 48 (2015):38361-38372,
https://doi.org/10.1039/c5ra03373j . .

TY  - JOUR
AU  - Popovic, T.
AU  - Borozan, Sunčica
AU  - Arsic, A.
AU  - Martacic, J. D.
AU  - Vucic, V.
AU  - Trbovic, A.
AU  - Mandić, Ljuba M.
AU  - Glibetic, Maria
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1584
AB  - In the present study, we examined the effects of fish oil supplementation in 3 months old male Wistar rats on changes in plasma and liver lipid metabolism and oxidative stress parameters. Twenty Wistar rats were randomly divided into two groups of ten animals: control group and intervention group, treated for 6 weeks with fish oil capsules containing 45 mg eicosapentanoic acid and 30 mg docosahexanoic acid. After intervention, biochemical parameters in plasma [triglycerides (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL) and total cholesterol, urea, creatinine and uric acid], fatty acid (FAs) profile of liver phospholipids and parameters of oxidative stress in liver [activity of catalase, superoxide dismutase and paraoxonase (PON1), concentration of nitrites, lipid peroxidation (LPO), free thiol (SH) groups and lactate dehydrogenase (LDH) izoenzymes were determined. Treatment with fish oil improved FAs profile of liver phospholipids, increasing n-3 FAs and decreasing n-6/n-3 ratio. Significant decrease in plasma TG and LDL concentration, and increase in the level of HDL and uric acid were found in intervention group at the end of the study. Catalase activity, LPO, and nitrites concentration in liver were significantly decreased, after the supplementation, together with elevated PON1 activity. Applied treatment significantly improved plasma lipid profile, liver FAs composition and parameters of oxidative stress in male Wistar rats.
PB  - Wiley-Blackwell, Hoboken
T2  - Journal of Animal Physiology and Animal Nutrition
T1  - Fish oil supplementation improved liver phospholipids fatty acid composition and parameters of oxidative stress in male wistar rats
VL  - 96
IS  - 6
SP  - 1020
EP  - 1029
DO  - 10.1111/j.1439-0396.2011.01216.x
ER  - 

@article{
author = "Popovic, T. and Borozan, Sunčica and Arsic, A. and Martacic, J. D. and Vucic, V. and Trbovic, A. and Mandić, Ljuba M. and Glibetic, Maria",
year = "2012",
abstract = "In the present study, we examined the effects of fish oil supplementation in 3 months old male Wistar rats on changes in plasma and liver lipid metabolism and oxidative stress parameters. Twenty Wistar rats were randomly divided into two groups of ten animals: control group and intervention group, treated for 6 weeks with fish oil capsules containing 45 mg eicosapentanoic acid and 30 mg docosahexanoic acid. After intervention, biochemical parameters in plasma [triglycerides (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL) and total cholesterol, urea, creatinine and uric acid], fatty acid (FAs) profile of liver phospholipids and parameters of oxidative stress in liver [activity of catalase, superoxide dismutase and paraoxonase (PON1), concentration of nitrites, lipid peroxidation (LPO), free thiol (SH) groups and lactate dehydrogenase (LDH) izoenzymes were determined. Treatment with fish oil improved FAs profile of liver phospholipids, increasing n-3 FAs and decreasing n-6/n-3 ratio. Significant decrease in plasma TG and LDL concentration, and increase in the level of HDL and uric acid were found in intervention group at the end of the study. Catalase activity, LPO, and nitrites concentration in liver were significantly decreased, after the supplementation, together with elevated PON1 activity. Applied treatment significantly improved plasma lipid profile, liver FAs composition and parameters of oxidative stress in male Wistar rats.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Journal of Animal Physiology and Animal Nutrition",
title = "Fish oil supplementation improved liver phospholipids fatty acid composition and parameters of oxidative stress in male wistar rats",
volume = "96",
number = "6",
pages = "1020-1029",
doi = "10.1111/j.1439-0396.2011.01216.x"
}

Popovic, T., Borozan, S., Arsic, A., Martacic, J. D., Vucic, V., Trbovic, A., Mandić, L. M.,& Glibetic, M.. (2012). Fish oil supplementation improved liver phospholipids fatty acid composition and parameters of oxidative stress in male wistar rats. in Journal of Animal Physiology and Animal Nutrition
Wiley-Blackwell, Hoboken., 96(6), 1020-1029.
https://doi.org/10.1111/j.1439-0396.2011.01216.x

Popovic T, Borozan S, Arsic A, Martacic JD, Vucic V, Trbovic A, Mandić LM, Glibetic M. Fish oil supplementation improved liver phospholipids fatty acid composition and parameters of oxidative stress in male wistar rats. in Journal of Animal Physiology and Animal Nutrition. 2012;96(6):1020-1029.
doi:10.1111/j.1439-0396.2011.01216.x .

Popovic, T., Borozan, Sunčica, Arsic, A., Martacic, J. D., Vucic, V., Trbovic, A., Mandić, Ljuba M., Glibetic, Maria, "Fish oil supplementation improved liver phospholipids fatty acid composition and parameters of oxidative stress in male wistar rats" in Journal of Animal Physiology and Animal Nutrition, 96, no. 6 (2012):1020-1029,
https://doi.org/10.1111/j.1439-0396.2011.01216.x . .

TY  - JOUR
AU  - Krstić, Milena
AU  - Sovilj, Sofija P.
AU  - Grgurić-Šipka, Sanja
AU  - Evans, Ivana Radosavljevic
AU  - Borozan, Sunčica
AU  - Santibanez, Juan Francisco
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1201
AB  - Three new ruthenium(II) complexes 1-3 containing N-alkylphenothiazine molecules were synthesized by reaction of [RuCl2(eta(6)-P-cymene)](2) with chlorpromazine hydrochloride (1), trifluoperazine dihydrochloride (2) or thioridazine hydrochloride (3). The compounds of the general formula L[RuCl3(eta(6)-p-cymene)] were characterized by elemental analysis and spectroscopic methods (FT-IR, UV-Vis, H-1 and C-13 NMR). Complex 2 was structurally characterized by single crystal X-ray diffraction. In vitro cytotoxic activity of complexes 1-3 were assayed in four human carcinoma cell lines MCF-7, MDA-MB-453 (breast carcinoma), SW-480 (colon carcinoma) and IM9 (myeloma multiple cells). The highest cytotoxicity (12.1  lt = IC50  lt = 17.3 mu M) and induced a total (SW-480) or almost total cell death (MCF-7. MDA-MB-453) at 25 mu M in 48 h of treatment were observed for complex 2. The influence of three different doses (0.4, 4.5 and 90.4 mu M/kg bw) of complex 2 on activities of antioxidants enzymes (superoxide dismutase (SOD) and catalase (CAT)) and lactate dehydrogenase (LDH) were investigated under physiological conditions. The effects on nitrite production (NO2-) and level of erythrocytes malondialdehyde (MDA) in rats blood were evaluated, too. (C) 2011 Elsevier Masson SAS. All rights reserved.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Paris
T2  - European Journal of Medicinal Chemistry
T1  - Synthesis, structural and spectroscopic characterization, in vitro cytotoxicity and in vivo activity as free radical scavengers of chlorido(p-cymene) complexes of ruthenium(II) containing N-alkylphenothiazines
VL  - 46
IS  - 9
SP  - 4168
EP  - 4177
DO  - 10.1016/j.ejmech.2011.06.019
ER  - 

@article{
author = "Krstić, Milena and Sovilj, Sofija P. and Grgurić-Šipka, Sanja and Evans, Ivana Radosavljevic and Borozan, Sunčica and Santibanez, Juan Francisco",
year = "2011",
abstract = "Three new ruthenium(II) complexes 1-3 containing N-alkylphenothiazine molecules were synthesized by reaction of [RuCl2(eta(6)-P-cymene)](2) with chlorpromazine hydrochloride (1), trifluoperazine dihydrochloride (2) or thioridazine hydrochloride (3). The compounds of the general formula L[RuCl3(eta(6)-p-cymene)] were characterized by elemental analysis and spectroscopic methods (FT-IR, UV-Vis, H-1 and C-13 NMR). Complex 2 was structurally characterized by single crystal X-ray diffraction. In vitro cytotoxic activity of complexes 1-3 were assayed in four human carcinoma cell lines MCF-7, MDA-MB-453 (breast carcinoma), SW-480 (colon carcinoma) and IM9 (myeloma multiple cells). The highest cytotoxicity (12.1  lt = IC50  lt = 17.3 mu M) and induced a total (SW-480) or almost total cell death (MCF-7. MDA-MB-453) at 25 mu M in 48 h of treatment were observed for complex 2. The influence of three different doses (0.4, 4.5 and 90.4 mu M/kg bw) of complex 2 on activities of antioxidants enzymes (superoxide dismutase (SOD) and catalase (CAT)) and lactate dehydrogenase (LDH) were investigated under physiological conditions. The effects on nitrite production (NO2-) and level of erythrocytes malondialdehyde (MDA) in rats blood were evaluated, too. (C) 2011 Elsevier Masson SAS. All rights reserved.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Paris",
journal = "European Journal of Medicinal Chemistry",
title = "Synthesis, structural and spectroscopic characterization, in vitro cytotoxicity and in vivo activity as free radical scavengers of chlorido(p-cymene) complexes of ruthenium(II) containing N-alkylphenothiazines",
volume = "46",
number = "9",
pages = "4168-4177",
doi = "10.1016/j.ejmech.2011.06.019"
}

Krstić, M., Sovilj, S. P., Grgurić-Šipka, S., Evans, I. R., Borozan, S.,& Santibanez, J. F.. (2011). Synthesis, structural and spectroscopic characterization, in vitro cytotoxicity and in vivo activity as free radical scavengers of chlorido(p-cymene) complexes of ruthenium(II) containing N-alkylphenothiazines. in European Journal of Medicinal Chemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Paris., 46(9), 4168-4177.
https://doi.org/10.1016/j.ejmech.2011.06.019

Krstić M, Sovilj SP, Grgurić-Šipka S, Evans IR, Borozan S, Santibanez JF. Synthesis, structural and spectroscopic characterization, in vitro cytotoxicity and in vivo activity as free radical scavengers of chlorido(p-cymene) complexes of ruthenium(II) containing N-alkylphenothiazines. in European Journal of Medicinal Chemistry. 2011;46(9):4168-4177.
doi:10.1016/j.ejmech.2011.06.019 .

Krstić, Milena, Sovilj, Sofija P., Grgurić-Šipka, Sanja, Evans, Ivana Radosavljevic, Borozan, Sunčica, Santibanez, Juan Francisco, "Synthesis, structural and spectroscopic characterization, in vitro cytotoxicity and in vivo activity as free radical scavengers of chlorido(p-cymene) complexes of ruthenium(II) containing N-alkylphenothiazines" in European Journal of Medicinal Chemistry, 46, no. 9 (2011):4168-4177,
https://doi.org/10.1016/j.ejmech.2011.06.019 . .

TY  - JOUR
AU  - Krstić, Milena
AU  - Sovilj, Sofija P.
AU  - Grgurić-Šipka, Sanja
AU  - Evans, Ivana Radosavljevic
AU  - Borozan, Sunčica
AU  - Santibanez, Juan Francisco
AU  - Kocic, Jelena
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1113
AB  - Three new complexes of the general formula L[RuCl(3)(DMSO)(3)] (1-3), where L = chlorpromazine hydrochloride, trifluoroperazine dihydrochloride or thioridazine hydrochloride, were prepared and characterized by elemental analysis and spectroscopic methods (FT-IR, UV-Vis, (1)H NMR and (13)C NMR). In addition, the crystal structure of the complex 2 containing trifluoroperazine dihydrochloride was solved by single crystal X-ray diffraction. The complex crystallizes in the monoclinic system, space group P2(1)/n, with a = 10.4935(7) angstrom, b = 18.6836(12) angstrom, c = 19.9250(13) angstrom, beta = 98.448(2)degrees, V = 3864.0(4) angstrom(3). The structure was refined to the agreement factors of R = 4.79%, R(w) = 11.23%. The effect of three different doses (0.4, 4.5 and 90.4 mu M/kg bw) of complex 2 on superoxide dismutase (SOD) and catalase (CAT) activity was investigated under physiological conditions. Influence on nitrite production (NO(2)(-)) and the level of erythrocytes malondialdehyde (MDA) in rats blood was also evaluated. Complex 2 did not affect the CAT enzyme activity in vivo and did not cause the hydroxyl radicals production. In the 0.4 and 4.5 mu M/kg bw doses it showed almost the same or lower SOD activity and nitrite levels, while the dose of 90.4 mu M/kg bw significantly increased these parameters. Finally, the cytotoxicity of complexes were assayed in four human carcinoma cell lines MCF-7, MDA-MB-453 (breast carcinoma), SW-480 (colon adenocarcinoma) and IM9 (myeloma multiple cells). Antiproliferative activity in vitro with low IC(50) during 48 h of treatment was observed. (C) 2010 Elsevier Masson SAS. All rights reserved.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Paris
T2  - European Journal of Medicinal Chemistry
T1  - New ruthenium(II) complexes with N-alkylphenothiazines: Synthesis, structure, in vivo activity as free radical scavengers and in vitro cytotoxicity
VL  - 45
IS  - 9
SP  - 3669
EP  - 3676
DO  - 10.1016/j.ejmech.2010.05.013
ER  - 

@article{
author = "Krstić, Milena and Sovilj, Sofija P. and Grgurić-Šipka, Sanja and Evans, Ivana Radosavljevic and Borozan, Sunčica and Santibanez, Juan Francisco and Kocic, Jelena",
year = "2010",
abstract = "Three new complexes of the general formula L[RuCl(3)(DMSO)(3)] (1-3), where L = chlorpromazine hydrochloride, trifluoroperazine dihydrochloride or thioridazine hydrochloride, were prepared and characterized by elemental analysis and spectroscopic methods (FT-IR, UV-Vis, (1)H NMR and (13)C NMR). In addition, the crystal structure of the complex 2 containing trifluoroperazine dihydrochloride was solved by single crystal X-ray diffraction. The complex crystallizes in the monoclinic system, space group P2(1)/n, with a = 10.4935(7) angstrom, b = 18.6836(12) angstrom, c = 19.9250(13) angstrom, beta = 98.448(2)degrees, V = 3864.0(4) angstrom(3). The structure was refined to the agreement factors of R = 4.79%, R(w) = 11.23%. The effect of three different doses (0.4, 4.5 and 90.4 mu M/kg bw) of complex 2 on superoxide dismutase (SOD) and catalase (CAT) activity was investigated under physiological conditions. Influence on nitrite production (NO(2)(-)) and the level of erythrocytes malondialdehyde (MDA) in rats blood was also evaluated. Complex 2 did not affect the CAT enzyme activity in vivo and did not cause the hydroxyl radicals production. In the 0.4 and 4.5 mu M/kg bw doses it showed almost the same or lower SOD activity and nitrite levels, while the dose of 90.4 mu M/kg bw significantly increased these parameters. Finally, the cytotoxicity of complexes were assayed in four human carcinoma cell lines MCF-7, MDA-MB-453 (breast carcinoma), SW-480 (colon adenocarcinoma) and IM9 (myeloma multiple cells). Antiproliferative activity in vitro with low IC(50) during 48 h of treatment was observed. (C) 2010 Elsevier Masson SAS. All rights reserved.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Paris",
journal = "European Journal of Medicinal Chemistry",
title = "New ruthenium(II) complexes with N-alkylphenothiazines: Synthesis, structure, in vivo activity as free radical scavengers and in vitro cytotoxicity",
volume = "45",
number = "9",
pages = "3669-3676",
doi = "10.1016/j.ejmech.2010.05.013"
}

Krstić, M., Sovilj, S. P., Grgurić-Šipka, S., Evans, I. R., Borozan, S., Santibanez, J. F.,& Kocic, J.. (2010). New ruthenium(II) complexes with N-alkylphenothiazines: Synthesis, structure, in vivo activity as free radical scavengers and in vitro cytotoxicity. in European Journal of Medicinal Chemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Paris., 45(9), 3669-3676.
https://doi.org/10.1016/j.ejmech.2010.05.013

Krstić M, Sovilj SP, Grgurić-Šipka S, Evans IR, Borozan S, Santibanez JF, Kocic J. New ruthenium(II) complexes with N-alkylphenothiazines: Synthesis, structure, in vivo activity as free radical scavengers and in vitro cytotoxicity. in European Journal of Medicinal Chemistry. 2010;45(9):3669-3676.
doi:10.1016/j.ejmech.2010.05.013 .

Krstić, Milena, Sovilj, Sofija P., Grgurić-Šipka, Sanja, Evans, Ivana Radosavljevic, Borozan, Sunčica, Santibanez, Juan Francisco, Kocic, Jelena, "New ruthenium(II) complexes with N-alkylphenothiazines: Synthesis, structure, in vivo activity as free radical scavengers and in vitro cytotoxicity" in European Journal of Medicinal Chemistry, 45, no. 9 (2010):3669-3676,
https://doi.org/10.1016/j.ejmech.2010.05.013 . .