Isolation, incubation and differentiation of pancreatic islet-derived progenitor cells from newborn SD rats / 中国应用生理学杂志
Chinese Journal of Applied Physiology
; (6): 125-128, 2006.
Article
in Zh
| WPRIM
| ID: wpr-254586
Responsible library:
WPRO
ABSTRACT
<p><b>AIM</b>To isolate, culture pancreatic progenitor cells derived from islets of newborn rats, and to observe the effect of GLP-1 (7-36) NH2 on islet progenitor differentiation.</p><p><b>METHODS</b>Islets were isolated purified, islet progenitor cells were isolated and proliferated in the modified RPMI-1640 medium supplemented with 20 microg/L bFGF and 20 microg/L EGF, then were differentiated with 20 nmol/L GLP-1 (7-36) NH2. The properties of islet progenitor cells were identified primarily by hybridization in situ, immunocytochemistry, dithizone (DTZ)-staining, and radioimmunoassay before and after differentiation.</p><p><b>RESULTS</b>Islet progenitor cells did not express PDX-1, insulin and somatostatin, but nestin. After differentiation, a portion of cells expressing PDX-1, insulin mRNA, insulin, somatostatin, and nestin, islet-like cell clusters (ICCs) were formed, DTZ-stained cells were in peripheral region of it. Insulin release was markedly greater in media harvested after differentiation of 3 weeks.</p><p><b>CONCLUSION</b>A kind of progenitor cells exists in pancreatic islet of newborn SD rats, could be expanded continuously. GLP-1 (7-36) NH2 could differentiate pancreatic islet-derived progenitor cells to form ICCs capable of insulin secretion.</p>
Full text:
1
Database:
WPRIM
Main subject:
Pharmacology
/
Stem Cells
/
Cell Differentiation
/
Cell Separation
/
Cells, Cultured
/
Islets of Langerhans
/
Cell Culture Techniques
/
Cell Biology
/
Glucagon-Like Peptide 1
/
Animals, Newborn
Limits:
Animals
Language:
Zh
Journal:
Chinese Journal of Applied Physiology
Year:
2006
Document type:
Article