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Islet isograft transplantation improves insulin sensitivity in a murine model of type 2 diabetes

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Abstract
Purpose Type 2 diabetes develops in the presence of chronic overnutrition and genetic susceptibility, and causes insulin resistance and relative insulin deficiency. We hypothesized that islet transplantation can improve insulin sensitivity by modifying the mediators of insulin sensitivity in the pancreas, liver, muscle, and adipose tissues.

Methods Eight-week-old male mice were used as both recipients and donors in this study. To induce type 2 diabetes with partial beta-cell failure, the mice were fed a high-fat diet for 4 weeks and then injected with low-dose streptozotocin. Approximately 400 islet cells from a donor mouse were injected into the renal capsule of a recipient mouse for islet transplantation. After 6 weeks following transplantation, the mediators of insulin sensitivity in the pancreas, liver, muscle, and adipose tissues were quantitatively compared between islet-transplanted and non-transplanted groups.

Results Intravenous glucose tolerance test showed that whereas the non-transplanted mice failed to show notable reductions in the glucose level, the islet-transplanted mice showed significant reductions in the serum glucose level to similar to 200 mg/dL at 6 weeks after islet transplantation. The islet-transplanted mice showed significantly higher Matsuda index and significantly lower HOMA-IR than did the non-transplanted mice, thus signifying improved insulin sensitivity.

Conclusions Islet transplantation resulted in improvements in multiple indices of insulin sensitivity in a murine model of type 2 diabetes. Islet transplantation may be utilized to improve insulin sensitivity in patients with type 2 diabetes.
Author(s)
권현욱김미정김영훈신성위유미임성준정창희최모니카영한덕종
Issued Date
2021
Type
Article
Keyword
Insulin sensitivityIslet transplantationStreptozotocinType 2 diabetes
DOI
10.1007/s12020-021-02655-8
URI
https://oak.ulsan.ac.kr/handle/2021.oak/7809
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_proquest_miscellaneous_2501266727&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Islet%20isograft%20transplantation%20improves%20insulin%20sensitivity%20in%20a%20murine%20model%20of%20type%202%20diabetes&offset=0&pcAvailability=true
Publisher
ENDOCRINE
Location
미국
Language
한국어
ISSN
1355-008X
Citation Volume
72
Citation Number
3
Citation Start Page
660
Citation End Page
671
Appears in Collections:
Medicine > Medicine
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