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Impact of Coculture with Ischemic Preconditioned Hepatocellular Carcinoma Cell Line (Hep-G2) Cells on Insulin Secreting Function of Rat Insulin-secreting Cell Line (RIN-5F) Cells.
MedLine Citation:
PMID:  22564635     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
INTRODUCTION: Although Islet cell isolation and culture have been well developed, there has been little progress to prolong transplanted islet sruvival. Hepatic ischemia and insufficient neovascularization of islets are considered to be the barriers to long-term survival, Hepatocytes that survive ischemic injury have been reported to protect themeslves and regenerate using the IL-6 interleukin 6 and STAT3 pathways.
MATERIALS AND METHODS: The hepatocellular carcinoma (Hep-G2) cell line preconditioned for 0, 2, 4, 6, and 24 hours in a hypoxic chamber, was cocultured with rat insulin-secreting celline (RIN-5F) cells. We measured cell viabilities, insulin secretion, and p-STAT3, IL-6, and NF-κB levels.
RESULTS: Cocultured Hep-G2 and RIN-5F cells aggregated to form spheroids. Viabilities of Hep-G2 cells were no different after various ischemic preconditioning times, but insulin secretion increased in a time-dependent fashion with preconditioning. Western blotting showed p-STAT3, NF-κB, and IL-6 levels to increase with preconditioning time.
CONCLUSION: The IL-6/STAT3 pathway of Hep-G2 cells after ischemic injury showed beneficial effects on insulin secretion of RIN-5f cells cocultured with themselves.
Authors:
D J Joo; J Y Kim; J I Lee; Y S Kim; Y H Fang; J H Jeong; M S Kim; K H Huh
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Transplantation proceedings     Volume:  44     ISSN:  1873-2623     ISO Abbreviation:  Transplant. Proc.     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-05-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0243532     Medline TA:  Transplant Proc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1099-103     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Affiliation:
The Research Institute for Transplantation, Yonsei University College of Medicine, Seoul, South Korea; Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea.
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