Bogdanović Pristov, Jelena

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  • Bogdanović Pristov, Jelena (4)

Author's Bibliography

Can glial cells save neurons in epilepsy?

Shen, Weida; Bogdanović Pristov, Jelena; Nobili, Paola; Nikolić, Ljiljana

(2023)

TY  - JOUR
AU  - Shen, Weida
AU  - Bogdanović Pristov, Jelena
AU  - Nobili, Paola
AU  - Nikolić, Ljiljana
PY  - 2023
UR  - https://journals.lww.com/10.4103/1673-5374.360281
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5383
AB  - Epilepsy is a neurological disorder caused by the pathological hyper-synchronization of neuronal discharges. The fundamental research of epilepsy mechanisms and the targets of drug design options for its treatment have focused on neurons. However, approximately 30% of patients suffering from epilepsy show resistance to standard anti-epileptic chemotherapeutic agents while the symptoms of the remaining 70% of patients can be alleviated but not completely removed by the current medications. Thus, new strategies for the treatment of epilepsy are in urgent demand. Over the past decades, with the increase in knowledge on the role of glia in the genesis and development of epilepsy, glial cells are receiving renewed attention. In a normal brain, glial cells maintain neuronal health and in partnership with neurons regulate virtually every aspect of brain function. In epilepsy, however, the supportive roles of glial cells are compromised, and their interaction with neurons is altered, which disrupts brain function. In this review, we will focus on the role of glia-related processes in epileptogenesis and their contribution to abnormal neuronal activity, with the major focus on the dysfunction of astroglial potassium channels, water channels, gap junctions, glutamate transporters, purinergic signaling, synaptogenesis, on the roles of microglial inflammatory cytokines, microglia-astrocyte interactions in epilepsy, and on the oligodendroglial potassium channels and myelin abnormalities in the epileptic brain. These recent findings suggest that glia should be considered as the promising next-generation targets for designing anti-epileptic drugs that may improve epilepsy and drug-resistant epilepsy.
T2  - Neural Regeneration Research
T1  - Can glial cells save neurons in epilepsy?
IS  - 7
VL  - 18
DO  - 10.4103/1673-5374.360281
SP  - 1417
EP  - 1422
ER  - 
@article{
author = "Shen, Weida and Bogdanović Pristov, Jelena and Nobili, Paola and Nikolić, Ljiljana",
year = "2023",
abstract = "Epilepsy is a neurological disorder caused by the pathological hyper-synchronization of neuronal discharges. The fundamental research of epilepsy mechanisms and the targets of drug design options for its treatment have focused on neurons. However, approximately 30% of patients suffering from epilepsy show resistance to standard anti-epileptic chemotherapeutic agents while the symptoms of the remaining 70% of patients can be alleviated but not completely removed by the current medications. Thus, new strategies for the treatment of epilepsy are in urgent demand. Over the past decades, with the increase in knowledge on the role of glia in the genesis and development of epilepsy, glial cells are receiving renewed attention. In a normal brain, glial cells maintain neuronal health and in partnership with neurons regulate virtually every aspect of brain function. In epilepsy, however, the supportive roles of glial cells are compromised, and their interaction with neurons is altered, which disrupts brain function. In this review, we will focus on the role of glia-related processes in epileptogenesis and their contribution to abnormal neuronal activity, with the major focus on the dysfunction of astroglial potassium channels, water channels, gap junctions, glutamate transporters, purinergic signaling, synaptogenesis, on the roles of microglial inflammatory cytokines, microglia-astrocyte interactions in epilepsy, and on the oligodendroglial potassium channels and myelin abnormalities in the epileptic brain. These recent findings suggest that glia should be considered as the promising next-generation targets for designing anti-epileptic drugs that may improve epilepsy and drug-resistant epilepsy.",
journal = "Neural Regeneration Research",
title = "Can glial cells save neurons in epilepsy?",
number = "7",
volume = "18",
doi = "10.4103/1673-5374.360281",
pages = "1417-1422"
}
Shen, W., Bogdanović Pristov, J., Nobili, P.,& Nikolić, L.. (2023). Can glial cells save neurons in epilepsy?. in Neural Regeneration Research, 18(7), 1417-1422.
https://doi.org/10.4103/1673-5374.360281
Shen W, Bogdanović Pristov J, Nobili P, Nikolić L. Can glial cells save neurons in epilepsy?. in Neural Regeneration Research. 2023;18(7):1417-1422.
doi:10.4103/1673-5374.360281 .
Shen, Weida, Bogdanović Pristov, Jelena, Nobili, Paola, Nikolić, Ljiljana, "Can glial cells save neurons in epilepsy?" in Neural Regeneration Research, 18, no. 7 (2023):1417-1422,
https://doi.org/10.4103/1673-5374.360281 . .
7
4

Membrane currents of C6 cells in pharmacological investigation

Nikolić, Ljiljana; Savić, Danijela; Korać Jačić, Jelena; Petković, Branka; Stojadinović, Gordana; Martać, Ljiljana; Bogdanović Pristov, Jelena

(Belgrade: Society of Physical Chemists of Serbia, 2022)

TY  - CONF
AU  - Nikolić, Ljiljana
AU  - Savić, Danijela
AU  - Korać Jačić, Jelena
AU  - Petković, Branka
AU  - Stojadinović, Gordana
AU  - Martać, Ljiljana
AU  - Bogdanović Pristov, Jelena
PY  - 2022
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5509
AB  - Living cells exhibit multiple ion channel proteins and malfunction of these channels underlies
numerous diseases. Channelopathies include diseases of the nervous, cardiovascular, respiratory,
endocrine, urinary, and immune system. Currently, ion channels represent the second-largest target
for existing drugs. Here, using the whole-cell patch-clamp technique, we explored the epinephrine
effect on membrane ionic currents in glioma C6 cells. We demonstrate that epinephrine specifically
evokes an increase of C6 cells outward ionic currents that is stable within 10 min, while it does not
affect inward currents. Our results thus provide fine resolution and time frame for targeting ion
channel activity that is crucial in pharmacological investigations.
PB  - Belgrade: Society of Physical Chemists of Serbia
C3  - Proceedings: Physical Chemistry 2022, Vol. 2.: 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry; 2022 Sep 26-30; Belgrade, Serbia
T1  - Membrane currents of C6 cells in pharmacological investigation
SP  - 589
EP  - 592
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5509
ER  - 
@conference{
author = "Nikolić, Ljiljana and Savić, Danijela and Korać Jačić, Jelena and Petković, Branka and Stojadinović, Gordana and Martać, Ljiljana and Bogdanović Pristov, Jelena",
year = "2022",
abstract = "Living cells exhibit multiple ion channel proteins and malfunction of these channels underlies
numerous diseases. Channelopathies include diseases of the nervous, cardiovascular, respiratory,
endocrine, urinary, and immune system. Currently, ion channels represent the second-largest target
for existing drugs. Here, using the whole-cell patch-clamp technique, we explored the epinephrine
effect on membrane ionic currents in glioma C6 cells. We demonstrate that epinephrine specifically
evokes an increase of C6 cells outward ionic currents that is stable within 10 min, while it does not
affect inward currents. Our results thus provide fine resolution and time frame for targeting ion
channel activity that is crucial in pharmacological investigations.",
publisher = "Belgrade: Society of Physical Chemists of Serbia",
journal = "Proceedings: Physical Chemistry 2022, Vol. 2.: 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry; 2022 Sep 26-30; Belgrade, Serbia",
title = "Membrane currents of C6 cells in pharmacological investigation",
pages = "589-592",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5509"
}
Nikolić, L., Savić, D., Korać Jačić, J., Petković, B., Stojadinović, G., Martać, L.,& Bogdanović Pristov, J.. (2022). Membrane currents of C6 cells in pharmacological investigation. in Proceedings: Physical Chemistry 2022, Vol. 2.: 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry; 2022 Sep 26-30; Belgrade, Serbia
Belgrade: Society of Physical Chemists of Serbia., 589-592.
https://hdl.handle.net/21.15107/rcub_ibiss_5509
Nikolić L, Savić D, Korać Jačić J, Petković B, Stojadinović G, Martać L, Bogdanović Pristov J. Membrane currents of C6 cells in pharmacological investigation. in Proceedings: Physical Chemistry 2022, Vol. 2.: 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry; 2022 Sep 26-30; Belgrade, Serbia. 2022;:589-592.
https://hdl.handle.net/21.15107/rcub_ibiss_5509 .
Nikolić, Ljiljana, Savić, Danijela, Korać Jačić, Jelena, Petković, Branka, Stojadinović, Gordana, Martać, Ljiljana, Bogdanović Pristov, Jelena, "Membrane currents of C6 cells in pharmacological investigation" in Proceedings: Physical Chemistry 2022, Vol. 2.: 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry; 2022 Sep 26-30; Belgrade, Serbia (2022):589-592,
https://hdl.handle.net/21.15107/rcub_ibiss_5509 .

Hippocampal Antioxidative System in Epilepsy

Ristić, Aleksandar; Savić, Danijela; Bogdanović Pristov, Jelena; Brkljačić, Jelena; Baščarević, Vladimir; Raičević, Savo; Savić, Slobodan

(Belgrade: Serbian Neuroscience Society, 2019)

TY  - CONF
AU  - Ristić, Aleksandar
AU  - Savić, Danijela
AU  - Bogdanović Pristov, Jelena
AU  - Brkljačić, Jelena
AU  - Baščarević, Vladimir
AU  - Raičević, Savo
AU  - Savić, Slobodan
PY  - 2019
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5991
AB  - Mesial temporal lobe epilepsy associated with hippocampal sclerosis (mTLE-HS) is probably the single most frequent human focal epilepsy. The involvement of redox processes in the pathological mechanisms of mTLE-HS has been implicated  by mitochondrial dysfunction and oxidative damage, and by different metabolic abnormalities that have been observed in sclerotic hippocampi, such as altered metabolism of redox-active metals. The strongest proof came with the analysis of enzymatic antioxidative system. Sclerotic hippocampi show drastically increased activity and levels of hydrogen peroxide–removing enzymes – catalase and glutathione peroxidase/reductase. Catalase is located mainly in neurons in both, controls and HS. Sclerotic hippocampi are depleted of glutathione peroxidase-positive blood vessels that are present in control hippocampi. Pertinent to this, it has been documented that hippocampi of mTLE-HS patients show increased blood vessel density, but most of the vessels represent atrophic vascular structures. On the other hand, HS showes specific glutathione peroxidase-rich loci that are present in gyrus dentatus, CA regions, and alveus, and appear to represent bundles of astrocytes. These loci are probably sites of excessive (neuronal) production of hydrogen peroxide that is counteracted by astrocytes. Finally, protein levels of mitochondrial enzyme manganese superoxide dismutase are higher in HS than controls. Neurons with abnormal morphology and strong superoxide dismutase immunofluorescence are present in all neuronal layers in HS. In close, antioxidative system is upregulated in HS implying that epileptogenic hippocampi are exposed to oxidative stress. The involvement of redox alterations in the pathology of epilepsy may open new pharmacologic perspectives for mTLE-HS treatment.
PB  - Belgrade: Serbian Neuroscience Society
C3  - Book of Abstract: Federation of European Neuroscience Societies (FENS) Regional Meeting; 2019 Jul 10-13; Belgrade, Serbia
T1  - Hippocampal Antioxidative System in Epilepsy
SP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5991
ER  - 
@conference{
author = "Ristić, Aleksandar and Savić, Danijela and Bogdanović Pristov, Jelena and Brkljačić, Jelena and Baščarević, Vladimir and Raičević, Savo and Savić, Slobodan",
year = "2019",
abstract = "Mesial temporal lobe epilepsy associated with hippocampal sclerosis (mTLE-HS) is probably the single most frequent human focal epilepsy. The involvement of redox processes in the pathological mechanisms of mTLE-HS has been implicated  by mitochondrial dysfunction and oxidative damage, and by different metabolic abnormalities that have been observed in sclerotic hippocampi, such as altered metabolism of redox-active metals. The strongest proof came with the analysis of enzymatic antioxidative system. Sclerotic hippocampi show drastically increased activity and levels of hydrogen peroxide–removing enzymes – catalase and glutathione peroxidase/reductase. Catalase is located mainly in neurons in both, controls and HS. Sclerotic hippocampi are depleted of glutathione peroxidase-positive blood vessels that are present in control hippocampi. Pertinent to this, it has been documented that hippocampi of mTLE-HS patients show increased blood vessel density, but most of the vessels represent atrophic vascular structures. On the other hand, HS showes specific glutathione peroxidase-rich loci that are present in gyrus dentatus, CA regions, and alveus, and appear to represent bundles of astrocytes. These loci are probably sites of excessive (neuronal) production of hydrogen peroxide that is counteracted by astrocytes. Finally, protein levels of mitochondrial enzyme manganese superoxide dismutase are higher in HS than controls. Neurons with abnormal morphology and strong superoxide dismutase immunofluorescence are present in all neuronal layers in HS. In close, antioxidative system is upregulated in HS implying that epileptogenic hippocampi are exposed to oxidative stress. The involvement of redox alterations in the pathology of epilepsy may open new pharmacologic perspectives for mTLE-HS treatment.",
publisher = "Belgrade: Serbian Neuroscience Society",
journal = "Book of Abstract: Federation of European Neuroscience Societies (FENS) Regional Meeting; 2019 Jul 10-13; Belgrade, Serbia",
title = "Hippocampal Antioxidative System in Epilepsy",
pages = "42",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5991"
}
Ristić, A., Savić, D., Bogdanović Pristov, J., Brkljačić, J., Baščarević, V., Raičević, S.,& Savić, S.. (2019). Hippocampal Antioxidative System in Epilepsy. in Book of Abstract: Federation of European Neuroscience Societies (FENS) Regional Meeting; 2019 Jul 10-13; Belgrade, Serbia
Belgrade: Serbian Neuroscience Society., 42.
https://hdl.handle.net/21.15107/rcub_ibiss_5991
Ristić A, Savić D, Bogdanović Pristov J, Brkljačić J, Baščarević V, Raičević S, Savić S. Hippocampal Antioxidative System in Epilepsy. in Book of Abstract: Federation of European Neuroscience Societies (FENS) Regional Meeting; 2019 Jul 10-13; Belgrade, Serbia. 2019;:42.
https://hdl.handle.net/21.15107/rcub_ibiss_5991 .
Ristić, Aleksandar, Savić, Danijela, Bogdanović Pristov, Jelena, Brkljačić, Jelena, Baščarević, Vladimir, Raičević, Savo, Savić, Slobodan, "Hippocampal Antioxidative System in Epilepsy" in Book of Abstract: Federation of European Neuroscience Societies (FENS) Regional Meeting; 2019 Jul 10-13; Belgrade, Serbia (2019):42,
https://hdl.handle.net/21.15107/rcub_ibiss_5991 .

Redox interactions of epinephrine with iron at physiological pH

Korać, Jelena; Stanković, Dalibor; Bogdanović Pristov, Jelena; Nikolić, Ljiljana; Spasojević, Ivan

(Belgrade : Faculty of Chemistry : Serbian Biochemical Society, 2018)

TY  - CONF
AU  - Korać, Jelena
AU  - Stanković, Dalibor
AU  - Bogdanović Pristov, Jelena
AU  - Nikolić, Ljiljana
AU  - Spasojević, Ivan
PY  - 2018
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/5517
AB  - Epinephrine ((R)-4-(1-hydroxy-2-(methylamino)ethyl)-benzene-1,2-diol (Epi) is
catecholamine that is released by the sympathetic nervous system and adrenal medulla. It
is a physiologically important molecule that acts as a hormone, neurotransmitter, and
medication with a broad range of effects 1-3 . Coordinate and redox interaction of Epi with
iron affects the interactions with other molecules and its biological effects 4
. In this study,
we reported details of redox interactions of Epi with Fe 2+ at pH 7.4, which correspond to
the pH value of human plasma Epi and Fe 2+ form a complex that acts as a strong reducing
agent. Cyclic voltammetry showed that the positions of E pa and E pc potentials were at
approximately -480 and -1100 mV. This implies that Epi and Fe 2+ build a complex with
unique redox properties. E1/2 was significantly lower compared to E0' for O 2 /O 2•- (-350
mV). It is important to point out this because superoxide radical anion is produced via
spontaneous Fe 2+ reaction with O 2. In other words, Epi-Fe 2+ complex should be capable of
reducing transition metals in (patho)physiologicaly relevant complexes that are not
susceptible to reduction by O 2. Our results confirmed that Epi-Fe
2+ is capable of reducing
the S-S group of glutathione disulfide. On the other hand, Epi acted in a catalyst-like
fashion to promote Fe 2+ oxidation by molecular oxygen, and to a facilitated formation of
the Epi–Fe 3+ complexes, at physiological pH. In addition, we examined the effects of
epinepfrine and Epi/Fe3+ system on glioma cells. Epinephrine alone evokes changes in the
membrane currents of glioma cells, but such effects were not observed for the complex
with Fe 3+
. This implies that Epi-Fe 3+ might modulate neural activity of Epi in CNS.
PB  - Belgrade : Faculty of Chemistry : Serbian Biochemical Society
C3  - Proceedings: Serbian Biochemical Society Eigth Conference with international participation: Coordination in Biochemistry and Life; 2018 Nov 16; Novi Sad, Serbia
T1  - Redox interactions of epinephrine with iron at physiological pH
SP  - 141
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_5517
ER  - 
@conference{
author = "Korać, Jelena and Stanković, Dalibor and Bogdanović Pristov, Jelena and Nikolić, Ljiljana and Spasojević, Ivan",
year = "2018",
abstract = "Epinephrine ((R)-4-(1-hydroxy-2-(methylamino)ethyl)-benzene-1,2-diol (Epi) is
catecholamine that is released by the sympathetic nervous system and adrenal medulla. It
is a physiologically important molecule that acts as a hormone, neurotransmitter, and
medication with a broad range of effects 1-3 . Coordinate and redox interaction of Epi with
iron affects the interactions with other molecules and its biological effects 4
. In this study,
we reported details of redox interactions of Epi with Fe 2+ at pH 7.4, which correspond to
the pH value of human plasma Epi and Fe 2+ form a complex that acts as a strong reducing
agent. Cyclic voltammetry showed that the positions of E pa and E pc potentials were at
approximately -480 and -1100 mV. This implies that Epi and Fe 2+ build a complex with
unique redox properties. E1/2 was significantly lower compared to E0' for O 2 /O 2•- (-350
mV). It is important to point out this because superoxide radical anion is produced via
spontaneous Fe 2+ reaction with O 2. In other words, Epi-Fe 2+ complex should be capable of
reducing transition metals in (patho)physiologicaly relevant complexes that are not
susceptible to reduction by O 2. Our results confirmed that Epi-Fe
2+ is capable of reducing
the S-S group of glutathione disulfide. On the other hand, Epi acted in a catalyst-like
fashion to promote Fe 2+ oxidation by molecular oxygen, and to a facilitated formation of
the Epi–Fe 3+ complexes, at physiological pH. In addition, we examined the effects of
epinepfrine and Epi/Fe3+ system on glioma cells. Epinephrine alone evokes changes in the
membrane currents of glioma cells, but such effects were not observed for the complex
with Fe 3+
. This implies that Epi-Fe 3+ might modulate neural activity of Epi in CNS.",
publisher = "Belgrade : Faculty of Chemistry : Serbian Biochemical Society",
journal = "Proceedings: Serbian Biochemical Society Eigth Conference with international participation: Coordination in Biochemistry and Life; 2018 Nov 16; Novi Sad, Serbia",
title = "Redox interactions of epinephrine with iron at physiological pH",
pages = "141",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_5517"
}
Korać, J., Stanković, D., Bogdanović Pristov, J., Nikolić, L.,& Spasojević, I.. (2018). Redox interactions of epinephrine with iron at physiological pH. in Proceedings: Serbian Biochemical Society Eigth Conference with international participation: Coordination in Biochemistry and Life; 2018 Nov 16; Novi Sad, Serbia
Belgrade : Faculty of Chemistry : Serbian Biochemical Society., 141.
https://hdl.handle.net/21.15107/rcub_ibiss_5517
Korać J, Stanković D, Bogdanović Pristov J, Nikolić L, Spasojević I. Redox interactions of epinephrine with iron at physiological pH. in Proceedings: Serbian Biochemical Society Eigth Conference with international participation: Coordination in Biochemistry and Life; 2018 Nov 16; Novi Sad, Serbia. 2018;:141.
https://hdl.handle.net/21.15107/rcub_ibiss_5517 .
Korać, Jelena, Stanković, Dalibor, Bogdanović Pristov, Jelena, Nikolić, Ljiljana, Spasojević, Ivan, "Redox interactions of epinephrine with iron at physiological pH" in Proceedings: Serbian Biochemical Society Eigth Conference with international participation: Coordination in Biochemistry and Life; 2018 Nov 16; Novi Sad, Serbia (2018):141,
https://hdl.handle.net/21.15107/rcub_ibiss_5517 .