Regulated expression of mature human insulin in the liver of transgenic mice.
FEBS Letters(1998)
摘要
Transgenic mice expressing either human proinsulin cDNA or mutated proinsulin cDNA in the liver were created. The human proinsulin cDNA was mutated to generate a protein cleavable by the ubiquitous prohormone convertase furin, thus leading to mature insulin peptide. All transgenic lines expressed human C-peptide in the blood, whose level varied according to nutritional conditions. High performance liquid chromatography fractionation of mouse serum revealed that mutant proinsulin was effectively processed into mature insulin in vivo. This transgenic mouse model provides a useful tool for further prospects of gene therapy of insulin-dependent diabetes mellitus.
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关键词
Insulin,Furin,L-type pyruvate kinase gene,Transgenic mice,Insulin-dependent diabetes mellitus
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