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Integrated whole liver histologic analysis of the allogeneic islet distribution and characteristics in a nonhuman primate model.

Abstract：

:The most obvious method to observe transplanted islets in the liver is direct biopsy, but the distribution and location of the best biopsy site in the recipient's liver are poorly understood. Islets transplanted into the whole liver of five diabetic cynomolgus monkeys that underwent insulin-independent survival for an extended period of time after allo-islet transplantation were analyzed for characteristics and distribution tendency. The liver was divided into segments (S1-S8), and immunohistochemistry analysis was performed to estimate the diameter, beta cell area, and islet location. Islets were more distributed in S2 depending on tissue size; however, the number of islets per tissue size was high in S1 and S8. Statistical analysis revealed that the characteristics of islets in S1 and S8 were relatively similar to other segments despite various transplanted islet dosages and survival times. In conclusion, S1, which exhibited high islet density and reflected the overall characteristics of transplanted islets, can be considered to be a reasonable candidate for a liver biopsy site in this monkey model. The findings obtained from the five monkey livers with similar anatomical features to human liver can be used as a reference for monitoring transplanted islets after clinical islet transplantation.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Kim GS,Lee JH,Shin DY,Lee HS,Park H,Lee KW,Yang HM,Kim SJ,Park JB

doi

10.1038/s41598-020-57701-8

subject

Has Abstract

pub_date

2020-01-21 00:00:00

pages

793

issue

1

issn

2045-2322

pii

10.1038/s41598-020-57701-8

journal_volume

10

pub_type

杂志文章

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