[Changes in the expression of vital cytokines for pancreatic development in early embryo].
Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition(2005)
Abstract
OBJECTIVE:To clarify the changes in the expression of vital cytokines for pancreatic development in early embryo and hence provide preclinical data regarding embryonic pancreas transplanted for treatment, of diabetes mellitus.
METHODS:Sample collection was conducted in accordance to the principle of informed consent. Histochemical S-ABC method was adopted in studying pancreas at 7-12 weeks of gestation, and analysis was made on vital cytokines expression as well as the differentiation and forming of pancreatic islets.
RESULTS:It was found that the expression of Insulin, Glucagon, Somatostatin and Cytokeratin begins at 7 weeks, and the change is consistent with the differentiation and formation of pancreatic islets. IGF-I and F-VIII appear at 12 weeks.
CONCLUSION:Insulin, Glucagon, Somatostatin, Cytokeratin, IGF-I and F-VIII play a regulatory role in the development of embryonic pancreas and are related to the differentiation and formation of endocrine and exocrine glands of pancreas. The pancreas after 12 weeks of gestation can be used as a donated graft for pancreas transplantation.
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Key words
embryonic pancreas development vital cytokines transplantation
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