PMID- 20965833 OWN - NLM STAT- MEDLINE DCOM- 20130211 LR - 20131121 IS - 1673-4254 (Print) IS - 1673-4254 (Linking) VI - 30 IP - 10 DP - 2010 Oct TI - [High glucose induces INS-1 cell apoptosis by activating nuclear factor-kappaB]. PG - 2307-9 AB - OBJECTIVE: To study of the role of nuclear transcription factor-kappaB (NF-kappaB) in high glucose-induced apoptosis in INS-1 cells. METHODS: Rat insulinoma (INS-1) cells cultured in RPMI 1640 medium were treated with 11.1 mmol/L glucose, 33.3 mmol/L glucose, or 33.3 mmol/L glucose plus 5 micromol/L NF-kappaB inhibitors for 48 h. The expression of NF-kappaB subunit P65 protein in the cell nuclei was detected by Western blotting, IKK belta mRNA level by quantitative RT-PCR, and cell apoptosis by Annexin V-PI double staining. RESULTS: Compared with the control levels, IKK belta mRNA levels of the cells significantly increased in response to 33.3 mmol/L glucose exposure (P<0.01), which also resulted in significantly increased P65 protein expression in the cell nuclei (P<0.01) and cell apoptosis rate (P<0.05). Compared with those in the high glucose group, the expression of IKK belta mRNA and P65 protein and cell apoptosis rate decreased significantly after treatment with 33.3 mmol/L glucose plus 5 micromol/L NF-kappaB inhibitors (P<0.05). CONCLUSION: High glucose induces NF-kappaB activation in INS-1 cells, and inhibition of NF-kappaB activation may protect INS-1 cells from high glucose-induced cell apoptosis. FAU - Zhang, Qiao-ling AU - Zhang QL AD - Department of Endocrinology, Nanfang Hospital, Southern Medical University, Guangzhou510515, China. qiaoling000@yahoo.com.cn FAU - Xue, Yao-ming AU - Xue YM FAU - Zhu, Bo AU - Zhu B FAU - Li, Jia AU - Li J FAU - Sha, Jian-ping AU - Sha JP FAU - Li, Sheng-jian AU - Li SJ LA - chi PT - English Abstract PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PL - China TA - Nan Fang Yi Ke Da Xue Xue Bao JT - Nan fang yi ke da xue xue bao = Journal of Southern Medical University JID - 101266132 RN - 0 (Rela protein, rat) RN - 0 (Transcription Factor RelA) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Animals MH - Apoptosis/drug effects MH - Cell Line, Tumor MH - Gene Expression Regulation MH - Glucose/*adverse effects/metabolism MH - Insulinoma/*pathology MH - Pancreatic Neoplasms/*pathology MH - Rats MH - Transcription Factor RelA/*metabolism EDAT- 2010/10/23 06:00 MHDA- 2013/02/12 06:00 CRDT- 2010/10/23 06:00 PHST- 2010/10/23 06:00 [entrez] PHST- 2010/10/23 06:00 [pubmed] PHST- 2013/02/12 06:00 [medline] PST - ppublish SO - Nan Fang Yi Ke Da Xue Xue Bao. 2010 Oct;30(10):2307-9.