Document Detail


Hepatic stellate cell (vitamin A-storing cell) and its relative--past, present and future.
MedLine Citation:
PMID:  21067523     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
HSCs (hepatic stellate cells) (also called vitamin A-storing cells, lipocytes, interstitial cells, fat-storing cells or Ito cells) exist in the space between parenchymal cells and liver sinusoidal endothelial cells of the hepatic lobule and store 50-80% of vitamin A in the whole body as retinyl palmitate in lipid droplets in the cytoplasm. In physiological conditions, these cells play pivotal roles in the regulation of vitamin A homoeostasis. In pathological conditions, such as hepatic fibrosis or liver cirrhosis, HSCs lose vitamin A and synthesize a large amount of extracellular matrix components including collagen, proteoglycan, glycosaminoglycan and adhesive glycoproteins. Morphology of these cells also changes from the star-shaped SCs (stellate cells) to that of fibroblasts or myofibroblasts. The hepatic SCs are now considered to be targets of therapy of hepatic fibrosis or liver cirrhosis. HSCs are activated by adhering to the parenchymal cells and lose stored vitamin A during hepatic regeneration. Vitamin A-storing cells exist in extrahepatic organs such as the pancreas, lungs, kidneys and intestines. Vitamin A-storing cells in the liver and extrahepatic organs form a cellular system. The research of the vitamin A-storing cells has developed and expanded vigorously. The past, present and future of the research of the vitamin A-storing cells (SCs) will be summarized and discussed in this review.
Authors:
Haruki Senoo; Kiwamu Yoshikawa; Mayako Morii; Mitsutaka Miura; Katsuyuki Imai; Yoshihiro Mezaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cell biology international     Volume:  34     ISSN:  1095-8355     ISO Abbreviation:  Cell Biol. Int.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9307129     Medline TA:  Cell Biol Int     Country:  England    
Other Details:
Languages:  eng     Pagination:  1247-72     Citation Subset:  IM    
Affiliation:
Departments of Cell Biology and Morphology, Akita University Graduate School of Medicine, 111 Hondo, Akita City, Akita 0108543, Japan. senoo@ipc.akita-u.ac.jp
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