Document Detail


Tissue culture of human fetal pancreas. Development and function of B-cells in vitro and transplantation of explants to nude mice.
MedLine Citation:
PMID:  3930324     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study evaluates the development and function of human fetal B-cells in vitro with a view to using such cells in future attempts for transplantation of human fetal pancreas to diabetic patients. A method previously described in our laboratory for preparing islets in vitro from the fetal rat pancreas has been applied and modified for use with human fetal pancreas. Pancreatic glands of different gestational ages were obtained from 37 consecutive prostaglandin-induced abortions. After a mild collagenase treatment, the partially disintegrated tissue was maintained in culture for 7 days in tissue culture medium RPMI 1640 plus 20% fetal calf serum to permit cell attachment and out-growth of endocrine cells. In 17 of the 37 consecutively cultured fetal pancreatic glands, islet-like cell clusters were formed. The 20 remaining glands were lost because of either bacterial contamination or lack of viability already before dissection had occurred. Sections of the newly formed cell clusters revealed well-preserved pancreatic cells showing frequent mitotic figures. The tissue exhibited a high rate of (pro)insulin biosynthesis and a modest insulin response to secretory stimuli, suggesting that the mechanism of glucose regulation by the fetal B-cells is not yet fully developed. Electron micrographs showed a large number of granule-containing cells, some of which were identified as B-cells. In nine cases, harvested cell clusters were implanted beneath the kidney capsule of nude mice. When these animals were killed after 2 mo, seven mice showed a considerable growth of the grafts with numerous islet-like structures containing insulin- and glucagon-positive cells.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
S Sandler; A Andersson; A Schnell; A Mellgren; J Tollemar; H Borg; B Petersson; C G Groth; C Hellerström
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Publication Detail:
Type:  In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Diabetes     Volume:  34     ISSN:  0012-1797     ISO Abbreviation:  Diabetes     Publication Date:  1985 Nov 
Date Detail:
Created Date:  1985-11-21     Completed Date:  1985-11-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372763     Medline TA:  Diabetes     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1113-9     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Culture Techniques
Fetus / physiology
Humans
Insulin / secretion
Islets of Langerhans / ultrastructure
Islets of Langerhans Transplantation*
Mice
Mice, Nude
Microscopy, Electron
Pancreas / embryology*
Proinsulin / biosynthesis
Transplantation, Heterologous
Chemical
Reg. No./Substance:
11061-68-0/Insulin; 9035-68-1/Proinsulin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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