PMID- 19626662 OWN - NLM STAT- MEDLINE DCOM- 20091211 LR - 20171116 IS - 1097-4644 (Electronic) IS - 0730-2312 (Linking) VI - 108 IP - 2 DP - 2009 Oct 1 TI - Inhibition of phosphatidylcholine-specific phospholipase C prevents bone marrow stromal cell senescence in vitro. PG - 519-28 LID - 10.1002/jcb.22282 [doi] AB - Bone marrow stromal cells (BMSCs) can proliferate in vitro and can be transplanted for treating many kinds of diseases. However, BMSCs become senescent with long-term culture, which inhibits their application. To understand the mechanism underlying the senescence, we investigated the activity of phosphatidylcholine-specific phospholipase C (PC-PLC) and levels of integrin beta4, caveolin-1 and ROS with BMSC senescence. The activity of PC-PLC and levels of integrin beta4, caveolin-1 and ROS increased greatly during cell senescence. Selective inhibition of increased PC-PLC activity with D609 significantly decreased the number of senescence-associated beta galactosidase positive cells in BMSCs. Furthermore, D609 restored proliferation of BMSCs and their differentiation into adipocytes. Moreover, D609 suppressed the elevated levels of integrin beta4, caveolin-1 and ROS. The data suggest that PC-PLC is involved in senescence of BMSCs, and its function is associated with integrin beta4, caveolin-1 and ROS. CI - (c) 2009 Wiley-Liss, Inc. FAU - Sun, Chunhui AU - Sun C AD - Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, China. FAU - Wang, Nan AU - Wang N FAU - Huang, Jie AU - Huang J FAU - Xin, Jie AU - Xin J FAU - Peng, Fen AU - Peng F FAU - Ren, Yinshi AU - Ren Y FAU - Zhang, Shangli AU - Zhang S FAU - Miao, Junying AU - Miao J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Cell Biochem JT - Journal of cellular biochemistry JID - 8205768 RN - 0 (Caveolin 1) RN - 0 (Integrin beta4) RN - 0 (Phosphatidylcholines) RN - 0 (Reactive Oxygen Species) RN - EC 3.1.4.- (Type C Phospholipases) RN - EC 3.2.1.23 (beta-Galactosidase) RN - SY7Q814VUP (Calcium) SB - IM MH - Adipogenesis MH - Animals MH - Bone Marrow Cells/cytology/*physiology MH - Calcium/metabolism MH - Caveolin 1/metabolism MH - Cell Differentiation MH - Cell Proliferation MH - Cells, Cultured MH - *Cellular Senescence MH - Integrin beta4/metabolism MH - Male MH - Phosphatidylcholines/*metabolism MH - Protein Transport MH - Rats MH - Rats, Wistar MH - Reactive Oxygen Species/metabolism MH - Stromal Cells/*metabolism/pathology MH - Substrate Specificity MH - Time Factors MH - Type C Phospholipases/*antagonists & inhibitors/metabolism MH - beta-Galactosidase/metabolism EDAT- 2009/07/25 09:00 MHDA- 2009/12/16 06:00 CRDT- 2009/07/24 09:00 PHST- 2009/07/24 09:00 [entrez] PHST- 2009/07/25 09:00 [pubmed] PHST- 2009/12/16 06:00 [medline] AID - 10.1002/jcb.22282 [doi] PST - ppublish SO - J Cell Biochem. 2009 Oct 1;108(2):519-28. doi: 10.1002/jcb.22282.