PMID- 24343717 OWN - NLM STAT- MEDLINE DCOM- 20150516 LR - 20211203 IS - 0371-0874 (Print) IS - 0371-0874 (Linking) VI - 65 IP - 6 DP - 2013 Dec 25 TI - [Palmitate induces apoptosis and endoplasmic reticulum stress in human umbilical cord-derived mesenchymal stem cells]. PG - 600-6 AB - The saturated free fatty acid (FFA), palmitate, could induce apoptosis in various cell types, but little is known about its effects on human umbilical cord-derived mesenchymal stem cells (hUC-MSCs). Here, we investigated whether palmitate induced apoptosis and endoplasmic reticulum (ER) stress in hUC-MSCs. hUC-MSCs were stained by labeled antibodies and identified by flow cytometry. After administration with palmitate, apoptotic cell was assessed by flow cytometry using the Annexin V-FITC/7-AAD apoptosis detection kit. Relative spliced XBP1 levels were analyzed using semi-quantitative RT-PCR. The mRNA of BiP, GRP94, ATF4 and CHOP were analyzed by real-time PCR. Relative BiP and CHOP protein were analyzed using Western blot analysis. The results showed that hUC-MSCs were homogeneously positive for MSC markers; palmitate increased apoptosis of hUC-MSCs and activated XBP1 splicing, BiP, GRP94, ATF4 and CHOP transcription. These findings suggest that palmitate induces apoptosis and ER stress in hUC-MSCs. FAU - Lu, Jun AU - Lu J AD - Fujian Provincial Key Laboratory of Transplant Biology, Fuzhou General Hospital, Fuzhou 350025, China. hlhtiger@163.com, tanjm156@gmail.com. FAU - Dong, Hui-Yue AU - Dong HY FAU - Lin, Ling-Jing AU - Lin LJ FAU - Wang, Qing-Hua AU - Wang QH FAU - Huang, Liang-Hu AU - Huang LH FAU - Tan, Jian-Ming AU - Tan JM LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Sheng Li Xue Bao JT - Sheng li xue bao : [Acta physiologica Sinica] JID - 20730130R RN - 0 (ATF4 protein, human) RN - 0 (DDIT3 protein, human) RN - 0 (DNA-Binding Proteins) RN - 0 (Endoplasmic Reticulum Chaperone BiP) RN - 0 (Heat-Shock Proteins) RN - 0 (Membrane Glycoproteins) RN - 0 (Palmitates) RN - 0 (Regulatory Factor X Transcription Factors) RN - 0 (Transcription Factors) RN - 0 (X-Box Binding Protein 1) RN - 0 (XBP1 protein, human) RN - 0 (endoplasmin) RN - 145891-90-3 (Activating Transcription Factor 4) RN - 147336-12-7 (Transcription Factor CHOP) SB - IM MH - Activating Transcription Factor 4/metabolism MH - *Apoptosis MH - DNA-Binding Proteins/metabolism MH - Endoplasmic Reticulum Chaperone BiP MH - *Endoplasmic Reticulum Stress MH - Heat-Shock Proteins/metabolism MH - Humans MH - Membrane Glycoproteins/metabolism MH - Mesenchymal Stem Cells/cytology/*drug effects MH - Palmitates/*pharmacology MH - Regulatory Factor X Transcription Factors MH - Transcription Factor CHOP/metabolism MH - Transcription Factors/metabolism MH - Umbilical Cord/cytology MH - X-Box Binding Protein 1 EDAT- 2013/12/18 06:00 MHDA- 2015/05/20 06:00 CRDT- 2013/12/18 06:00 PHST- 2013/12/18 06:00 [entrez] PHST- 2013/12/18 06:00 [pubmed] PHST- 2015/05/20 06:00 [medline] PST - ppublish SO - Sheng Li Xue Bao. 2013 Dec 25;65(6):600-6.