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- W2022253290 abstract "We have reported previously that cellophane wrapping of the hamster pancreas is a stimulus that leads to the induction of duct epithelial cell proliferation, followed by endocrine cell differentiation and new islet formation. Reg is a candidate gene that has been reported to be expressed in regenerating pancreatic islets, suggesting a role in islet growth. We examined Reg gene expression in the cellophane-wrap model by isolating total RNA from hamster pancreata at various times after wrapping. Northern blot analysis using a rat cDNA Reg probe showed no expression of Reg in control non-wrapped hamster pancreas, whereas a strong signal was detected in control wrapped rat pancreas. Using reverse transcription of RNA followed by polymerase chain reaction (PCR) we amplified, isolated and sequenced a 194 base pair product which showed homology to rat Reg in both control and wrapped hamster pancreas. When the PCR product was used as a probe for Northern blot analysis, no signal was detected in control non-wrapped pancreata. In contrast, a strong signal was detected 1 and 2 days after wrapping, which then returned to basal between 4 and 6 days after wrapping. A similar temporal pattern was observed using in situ hybridization to localize the Reg gene. One- and 2-day wrapped but not control pancreas expressed Reg in acinar cells, but not in islets. In conclusion, (a) Reg expression is low in the control hamster pancreas; (b) in the cellophane-wrap model of islet neogenesis, increased Reg mRNA is found within acinar tissue; (c) Reg gene may thus be involved as an acinar paracrine effector of duct cell proliferation in the initial step of islet neogenesis, but may also participate in the inflammatory response to traumatic stimuli." @default.
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- W2022253290 date "1995-08-01" @default.
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- W2022253290 title "Expression of Reg gene in the Syrian golden hamster pancreatic islet regeneration model" @default.
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- W2022253290 doi "https://doi.org/10.1007/bf00400578" @default.
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