Transdifferentiating of adult human pancreatic stem cells into islet cells

To understand and improve the transdifferentiation of pancreatic stem cells into islet cells through isolation, cultivation and transdifferentiation of adult human pancreatic duct cells. A portion of adult human pancreas was digested with collagenase, followed by incontinuous density gradient to sep...

Full description

Saved in:
Bibliographic Details
Published inChung-hua wai kʿo tsa chih Vol. 40; no. 11; p. 807
Main Authors Song, Zhenshun, Gu, Keju
Format Journal Article
LanguageChinese
Published China 01.11.2002
Subjects
Adult
Cell Differentiation - physiology
Humans
Islets of Langerhans - cytology
Pancreas - cytology
Stem Cells - cytology
Online AccessGet more information

Cover

More Information
Summary:To understand and improve the transdifferentiation of pancreatic stem cells into islet cells through isolation, cultivation and transdifferentiation of adult human pancreatic duct cells. A portion of adult human pancreas was digested with collagenase, followed by incontinuous density gradient to separate islets from the acinar and ductal tissue. Duct epithelial cells were cultivated in CMRL1066 and then in serum-free DMEM/F12 medium with the addition of growth factors for 27 days. Samples were taken at different time points for light and electron microscopic examination and for immunocytochemical study with antibodies against transdifferentiation gene PDX-1 and protein CK-19. Amylase and insulin contents in the medium were assayed. A large number of duct epithelial cells were harvested after the isolation of islets. Some duct epithelial cells were PDX-1 and CK-19 positive at day one and duct epithelial cells proliferated and expanded rapidly and then transdifferentiated into stem cells and finally 3D islets.
ISSN:0529-5815