TY  - JOUR
AU  - Lakić, Mladen
AU  - Sabo, Ljubica
AU  - Ristic, Slavica
AU  - Savić, Aleksandar
AU  - Petricevic, Sasa
AU  - Nikolić, Nadežda S.
AU  - Vukadinović, Aleksandar
AU  - Janković, Drina
AU  - Sabo, Tibor J.
AU  - Vranješ-Đurić, Sanja
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/273
AB  - The extensive development of radiopharmaceuticals towards early tumour detection and treatment has increased the demand for new ligands with higher tumour selectivity. Research has been done on the potential of the novel O,O-diethylethylenediamine-N,N-di-3-propanoate (L) ligand as a radionuclide vehicle for tumour targeting. Under alkaline conditions, L hydrolyses and produces half ester ligand (L) and diacid ligand (L), with characteristic donor atom array N, N, O. Ligand L was successfully labelled with Tc-99m at pH=9 by coordination with the octahedral fac-[Tc-99m(CO)(3)(H2O)(3)](+) intermediate, forming the main radioproduct fac-[(TcL)-Tc-99m(CO)(3)] (Tc1). The Tc-99m complex showed a low lipophilic character (log P = 0.48) and low binding affinity to human serum albumin (2.51 +/- 0.48%). In vitro stability studies in saline and human plasma, as well as challenge studies with cysteine and histidine, revealed high stability of the complex during 24 h. Biodistribution studies of Tc1 in female C57BL/6 mice bearing B16/F1 melanoma metastases showed significant tumour uptake: 9.81 +/- 1.19% ID g(-1) in the liver, 5.87 +/- 0.54% ID g(-1) in the lungs and 3.17 +/- 0.33% ID g(-1) in the ovary at 30 min post-injection. Favourable physicochemical properties, satisfactory in vitro/in vivo stability and biodistribution profile in the experimental metastatic melanoma model indicate the possible application of the radiolabelled ligand in tumour diagnosis. Copyright (C) 2015 John Wiley and Sons, Ltd.
T2  - Applied Organometallic Chemistry
T1  - Synthesis and biological evaluation of Tc-99m tricarbonyl complex of O,O -diethylethylenediamine-N,N -di-3-propanoate as potential tumour diagnostic agent
VL  - 30
IS  - 2
SP  - 81
EP  - 88
DO  - 10.1002/aoc.3401
ER  - 

@article{
author = "Lakić, Mladen and Sabo, Ljubica and Ristic, Slavica and Savić, Aleksandar and Petricevic, Sasa and Nikolić, Nadežda S. and Vukadinović, Aleksandar and Janković, Drina and Sabo, Tibor J. and Vranješ-Đurić, Sanja",
year = "2016",
abstract = "The extensive development of radiopharmaceuticals towards early tumour detection and treatment has increased the demand for new ligands with higher tumour selectivity. Research has been done on the potential of the novel O,O-diethylethylenediamine-N,N-di-3-propanoate (L) ligand as a radionuclide vehicle for tumour targeting. Under alkaline conditions, L hydrolyses and produces half ester ligand (L) and diacid ligand (L), with characteristic donor atom array N, N, O. Ligand L was successfully labelled with Tc-99m at pH=9 by coordination with the octahedral fac-[Tc-99m(CO)(3)(H2O)(3)](+) intermediate, forming the main radioproduct fac-[(TcL)-Tc-99m(CO)(3)] (Tc1). The Tc-99m complex showed a low lipophilic character (log P = 0.48) and low binding affinity to human serum albumin (2.51 +/- 0.48%). In vitro stability studies in saline and human plasma, as well as challenge studies with cysteine and histidine, revealed high stability of the complex during 24 h. Biodistribution studies of Tc1 in female C57BL/6 mice bearing B16/F1 melanoma metastases showed significant tumour uptake: 9.81 +/- 1.19% ID g(-1) in the liver, 5.87 +/- 0.54% ID g(-1) in the lungs and 3.17 +/- 0.33% ID g(-1) in the ovary at 30 min post-injection. Favourable physicochemical properties, satisfactory in vitro/in vivo stability and biodistribution profile in the experimental metastatic melanoma model indicate the possible application of the radiolabelled ligand in tumour diagnosis. Copyright (C) 2015 John Wiley and Sons, Ltd.",
journal = "Applied Organometallic Chemistry",
title = "Synthesis and biological evaluation of Tc-99m tricarbonyl complex of O,O -diethylethylenediamine-N,N -di-3-propanoate as potential tumour diagnostic agent",
volume = "30",
number = "2",
pages = "81-88",
doi = "10.1002/aoc.3401"
}

Lakić, M., Sabo, L., Ristic, S., Savić, A., Petricevic, S., Nikolić, N. S., Vukadinović, A., Janković, D., Sabo, T. J.,& Vranješ-Đurić, S.. (2016). Synthesis and biological evaluation of Tc-99m tricarbonyl complex of O,O -diethylethylenediamine-N,N -di-3-propanoate as potential tumour diagnostic agent. in Applied Organometallic Chemistry, 30(2), 81-88.
https://doi.org/10.1002/aoc.3401

Lakić M, Sabo L, Ristic S, Savić A, Petricevic S, Nikolić NS, Vukadinović A, Janković D, Sabo TJ, Vranješ-Đurić S. Synthesis and biological evaluation of Tc-99m tricarbonyl complex of O,O -diethylethylenediamine-N,N -di-3-propanoate as potential tumour diagnostic agent. in Applied Organometallic Chemistry. 2016;30(2):81-88.
doi:10.1002/aoc.3401 .

Lakić, Mladen, Sabo, Ljubica, Ristic, Slavica, Savić, Aleksandar, Petricevic, Sasa, Nikolić, Nadežda S., Vukadinović, Aleksandar, Janković, Drina, Sabo, Tibor J., Vranješ-Đurić, Sanja, "Synthesis and biological evaluation of Tc-99m tricarbonyl complex of O,O -diethylethylenediamine-N,N -di-3-propanoate as potential tumour diagnostic agent" in Applied Organometallic Chemistry, 30, no. 2 (2016):81-88,
https://doi.org/10.1002/aoc.3401 . .

TY  - JOUR
AU  - Bajić, Vladan P.
AU  - Bajic, B.
AU  - Milicević, Zorana
AU  - Ristic, Slavica
AU  - Nikolau, A.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3783
AB  - There have been a number of attempts to reduce the oxidative radical burden of tobacco. A recently patented technology, pulse electromagnetic technology, has been shown to induce differential action of treated tobacco products versus untreated products on the production of reactive oxygen species (ROS) in vivo. In a 90-day respiratory toxicity study, Wistar rats were exposed to cigarette smoke from processed and unprocessed tobacco and biomarkers of oxidative stress were compared with pathohistological analysis of rat lungs. Superoxide dismutase (SOD) activity was decreased in a dose-dependent manner to 81% in rats exposed to smoke from normal cigarettes compared to rats exposed to treated smoke or the control group. These results correspond to pathohistological analysis of rat lungs, in which those rats exposed to untreated smoke developed initial signs of emphysema, while rats exposed to treated smoke showed no pathology, as in the control group. The promise of inducing an improved health status in humans exposed to smoke from treated cigarettes merits further investigation.
T2  - Archives of Biological Sciences
T1  - Oxidative Stress Is Reduced in Wistar Rats Exposed to Smoke from Tobacco and Treated with Specific Broad-Band Pulse Electromagnetic Fields
VL  - 61
IS  - 3
SP  - 353
EP  - 366
DO  - 10.2298/ABS0903353B
ER  - 

@article{
author = "Bajić, Vladan P. and Bajic, B. and Milicević, Zorana and Ristic, Slavica and Nikolau, A.",
year = "2009",
abstract = "There have been a number of attempts to reduce the oxidative radical burden of tobacco. A recently patented technology, pulse electromagnetic technology, has been shown to induce differential action of treated tobacco products versus untreated products on the production of reactive oxygen species (ROS) in vivo. In a 90-day respiratory toxicity study, Wistar rats were exposed to cigarette smoke from processed and unprocessed tobacco and biomarkers of oxidative stress were compared with pathohistological analysis of rat lungs. Superoxide dismutase (SOD) activity was decreased in a dose-dependent manner to 81% in rats exposed to smoke from normal cigarettes compared to rats exposed to treated smoke or the control group. These results correspond to pathohistological analysis of rat lungs, in which those rats exposed to untreated smoke developed initial signs of emphysema, while rats exposed to treated smoke showed no pathology, as in the control group. The promise of inducing an improved health status in humans exposed to smoke from treated cigarettes merits further investigation.",
journal = "Archives of Biological Sciences",
title = "Oxidative Stress Is Reduced in Wistar Rats Exposed to Smoke from Tobacco and Treated with Specific Broad-Band Pulse Electromagnetic Fields",
volume = "61",
number = "3",
pages = "353-366",
doi = "10.2298/ABS0903353B"
}

Bajić, V. P., Bajic, B., Milicević, Z., Ristic, S.,& Nikolau, A.. (2009). Oxidative Stress Is Reduced in Wistar Rats Exposed to Smoke from Tobacco and Treated with Specific Broad-Band Pulse Electromagnetic Fields. in Archives of Biological Sciences, 61(3), 353-366.
https://doi.org/10.2298/ABS0903353B

Bajić VP, Bajic B, Milicević Z, Ristic S, Nikolau A. Oxidative Stress Is Reduced in Wistar Rats Exposed to Smoke from Tobacco and Treated with Specific Broad-Band Pulse Electromagnetic Fields. in Archives of Biological Sciences. 2009;61(3):353-366.
doi:10.2298/ABS0903353B .

Bajić, Vladan P., Bajic, B., Milicević, Zorana, Ristic, Slavica, Nikolau, A., "Oxidative Stress Is Reduced in Wistar Rats Exposed to Smoke from Tobacco and Treated with Specific Broad-Band Pulse Electromagnetic Fields" in Archives of Biological Sciences, 61, no. 3 (2009):353-366,
https://doi.org/10.2298/ABS0903353B . .