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Gene expression profile at single cell level of islet cells from normoglycemic or hyperglycemic mice

ABSTRACT: Gene expression profile at single cell level of islet cells from normoglycemic or hyperglycemic mice

PROVIDER: PRJNA982874 | ENA |

REPOSITORIES: ENA

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Expression data from the transplanted mouse islets into hyperglycemic and normoglycemic mice at 6 hours post-transplantation

Project description:insulin treatment protects islets from the initial rapid loss that is usually observed after transplantation and positively affects the outcome of islet transplantation in Akita mice. To study the molecular mechanism underlying the improved islet survival, expression profile analyses was performed to analyze the differences between the grafts transplanted into hyperglycemic and normoglycemic mice at 6 hours post-transplantation Cells were harvested at grafts for RNA extraction and hybridization on Affymetrix microarrays. We performed gene expression profiles of the transplanted mouse islets into hyperglycemic and normoglycemic mice at 6 hours post-transplantation

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Expression data from the transplanted mouse islets into hyperglycemic and normoglycemic mice at 6 hours post-transplantation

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Project description:From the past reports, we hypothesized that spleen is an ideal site for inducing regeneration of transplanted islets, and leading to reduce the required number of islets for ameliorating the hyperglycemia of diabetic recipients in mice. In order to confirm this hypothesis, we performed 25 islets transplantation into spleen (SP25); it was not enough number to ameliorate the hyperglycemia of recipient mice, with 100 islets transplantation into beneath the kidney capsule (KC100) to maintain recipients' blood glucose normoglycemic temporary. All recipient mice (n=11) became normoglycemic after receiving SP25 with KC100. On 240 days after transplantation, we performed nephrectomy for removing islet grafts in the kidney. After nephrectomy, 8 of 11 mice remained normoglycemic, and 3 of 11 mice' non-fasting blood glucose levels were maintained around 300 mg/dL. On 290 days after transplantation (50 days after nephrectomy), all recipient mice received splenectomy to remove islet grafts in the spleen. All mice became hyperglycemic after splenectomy, indicating that intra-splenic islet grafts maintained the blood glucose levels of diabetic recipient mice. In order to investigate the gene expression associated with islets engraftment in the spleen, microarray studies were performed in comparison of the Tlx-1 (Hox11) related gene expression profiles of Sample 1, Sample 2 and Sample 3.

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Gene expression profile at single cell level of islet cells from normoglycemic or hyperglycemic mice

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