NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Experimental Biology (IJEB) >
IJEB Vol.49 [2011] >
IJEB Vol.49(02) [February 2011] >


Title: Lentiviral-mediated RNAi targeting p38MAPK ameliorates high glucose-induced apoptosis in osteoblast MC3T3-E1 cell line
Authors: Feng, Zhengping
Deng, Huacong
Du, Jia
Chen, Danyan
Jiang, Rong
Liang, Xiaoyan
Keywords: Apoptosis
High glucose
Lentivirus
p38MAPK
MC3T3-E1 cell line
RNA interference
Issue Date: Feb-2011
Publisher: NISCAIR-CSIR, India
Abstract: The p38 mitogen activated protein kinase (p38MAPK) pathway is an important signaling cascade involved in cell growth, differentiation and apoptosis. High glucose activates p38MAPK pathway in different cells, including osteoblasts. In the present study, role of p38MAPK in high glucose induced osteoblast apoptosis and potential of RNA interference (RNAi) targeting p38MAPK as a therapy strategy have been reported. Lentiviral-mediated RNAi effectively reduced p38MAPK and p-p38MAPK expressions in osteoblastic cell line (MC3T3-E1) following high glucose (22 mM) induction. Inhibition of p38MAPK activity significantly suppressed high glucose induced apoptosis of MC3T3-E1 cell and was confirmed by flow cytometry and ultra-structural examination by transmission electronic microscope. Inhibition of p38MAPK also significantly attenuates caspase-3 and bax protein expressions, but increased significantly bcl-2 expression as determined by Western blot analysis. The results suggested that p38MAPK mediates high glucose induced osteoblast apoptosis, partly through modulating the expressions of caspase-3, bax and bcl-2. Inhibition of p38MAPK with lentiviral-mediated RNAi or its specific inhibitor provides a new strategy to treat high glucose induced osteoblast apoptosis.
Page(s): 94-104
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.49(02) [February 2011]

Files in This Item:

File Description SizeFormat
IJEB 49(2) 94-104.pdf1.23 MBAdobe PDFView/Open
 Current Page Visits: 686 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 569796 since 06-Feb-2009  Last updated on 14-Aug-2014Webmaster: nopr@niscair.res.in