PMID- 24409809 OWN - NLM STAT- MEDLINE DCOM- 20141020 LR - 20140305 IS - 1607-8438 (Electronic) IS - 0300-8207 (Linking) VI - 55 IP - 2 DP - 2014 Apr TI - Glutathione protects human nucleus pulposus cells from cell apoptosis and inhibition of matrix synthesis. PG - 132-9 LID - 10.3109/03008207.2013.876421 [doi] AB - Abstract Cell death (apoptosis and necrosis) and extracellular matrix destruction induced by oxidative stress have been suggested to be closely involved in the process of disc degeneration. Glutathione, a natural peptide as a powerful antioxidant in human cytoplasm, plays an important role in protecting living cells. This study is to investigate whether glutathione could retard degenerated phenotypes in cultured disc cells. Human nucleus pulposus cells were isolated and cultured in alginate beads and subsequently treated with a pro-oxidant H2O2 alone or a pro-inflammatory cytokine IL-1beta alone or either of them together with glutathione. It was shown that H2O2 dose-dependently promoted nucleus pulposus cell apoptosis detected by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining and decreased mRNA levels of matrix proteins aggrecan and type II collagen determined by quantitative reverse transcription-polymerase chain reaction (RT-PCR). IL-1beta could induce production of nitric oxide and decrease of proteoglycan, detected by the Griess reagent and the dimethyl methylene blue, respectively. The deleterious effects of either H2O2 or IL-1beta could be efficiently prevented by glutathione. These results indicated that glutathione might be considered as an option for intervention of disc degeneration. FAU - Yang, Dazhi AU - Yang D AD - Department of Spinal Surgery, The Second Affiliated Hospital of Jinan University Medical School , Shenzhen , China and. FAU - Wang, Daidong AU - Wang D FAU - Shimer, Adam AU - Shimer A FAU - Shen, Francis H AU - Shen FH FAU - Li, Xudong AU - Li X FAU - Yang, Xinlin AU - Yang X LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140124 PL - England TA - Connect Tissue Res JT - Connective tissue research JID - 0365263 RN - 0 (Collagen Type II) RN - 0 (IL1B protein, human) RN - 0 (Interleukin-1beta) RN - 0 (Oxidants) RN - BBX060AN9V (Hydrogen Peroxide) RN - GAN16C9B8O (Glutathione) SB - IM MH - Apoptosis/*drug effects MH - Cells, Cultured MH - Child MH - Collagen Type II/*biosynthesis MH - Extracellular Matrix/*metabolism/pathology MH - Female MH - Glutathione/*pharmacology MH - Humans MH - Hydrogen Peroxide/pharmacology MH - Interleukin-1beta/pharmacology MH - Intervertebral Disc/*metabolism/pathology MH - Intervertebral Disc Degeneration/metabolism/pathology MH - Male MH - Oxidants/pharmacology EDAT- 2014/01/15 06:00 MHDA- 2014/10/21 06:00 CRDT- 2014/01/14 06:00 PHST- 2014/01/14 06:00 [entrez] PHST- 2014/01/15 06:00 [pubmed] PHST- 2014/10/21 06:00 [medline] AID - 10.3109/03008207.2013.876421 [doi] PST - ppublish SO - Connect Tissue Res. 2014 Apr;55(2):132-9. doi: 10.3109/03008207.2013.876421. Epub 2014 Jan 24.