Two pathways of the nitric oxide‐induced cytotoxycal action

Nitric oxide is a diffusible messenger with multiple biological functions. We show here that NO‐generating compound, S‐nitrosoglutathione (GSNO) induces apoptosis in human chondrocytes and causes necrosis‐like celt death in human epithelial CaOv cell line. Pretreatment of chondrocytes with low‐dose...

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Veröffentlicht in:Biochemistry and molecular biology international 1997-04, Vol.41 (5), p.1025-1033
Hauptverfasser: Turpaev, Kyril T., Amchenkova, Aleftina M., Narovlyansky, Alexander N.
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container_end_page 1033
container_issue 5
container_start_page 1025
container_title Biochemistry and molecular biology international
container_volume 41
creator Turpaev, Kyril T.
Amchenkova, Aleftina M.
Narovlyansky, Alexander N.
description Nitric oxide is a diffusible messenger with multiple biological functions. We show here that NO‐generating compound, S‐nitrosoglutathione (GSNO) induces apoptosis in human chondrocytes and causes necrosis‐like celt death in human epithelial CaOv cell line. Pretreatment of chondrocytes with low‐dose GSNO or with γ‐interferon enhances their tolerance to the second high‐concentration GSNO exposure. On the contrary, in CaOv cells low‐dose GSNO pretreatment diminishes the resistance and increases cytolysis at the second GSNO exposure. We conclude that human chondrocytes possess specific and inducible mechanism preventing celt killing by nitric oxide.
doi_str_mv 10.1080/15216549700202091
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1521-6551
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subjects apoptosis
Apoptosis - drug effects
Apoptosis - physiology
Cartilage - cytology
Cartilage - drug effects
Cartilage - metabolism
Cell Death - drug effects
Cell Death - physiology
DNA - analysis
DNA fragmentation
Dose-Response Relationship, Drug
Electrophoresis
Glutathione - analogs & derivatives
Glutathione - pharmacokinetics
Glutathione - toxicity
human chondrocytes
Humans
Interferon-gamma - pharmacology
Necrosis
nitric oxide
Nitric Oxide - pharmacokinetics
Nitric Oxide - toxicity
Nitroso Compounds - pharmacokinetics
Nitroso Compounds - toxicity
Recombinant Proteins
S-Nitrosoglutathione
title Two pathways of the nitric oxide‐induced cytotoxycal action
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