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J Huazhong Univ Sci Technolog Med Sci. 2016 Aug;36(4):529-533. doi: 10.1007/s11596-016-1620-9. Epub 2016 Jul 28.

Gastric submucosa is inferior to the liver as transplant site for autologous islet transplantation in pancreatectomized diabetic Beagles.

Author information

1
Department of Hepatopancreaticobiliary Surgical Oncology, Chinese People's Liberation Army (PLA) General Hospital, Beijing, 100853, China.
2
Department of Organ Transplantation, Tianjin First Center Hospital, Tianjin, 300192, China.
3
Dparment of General Surgery, Tianjin Union Medicine Center, Tianjin, 300121, China.
4
Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
5
Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, 430030, China.
6
Key Laboratory of Organ Transplantation, Ministry of Public Health, Wuhan, 430030, China.
7
Department of Hepatopancreaticobiliary Surgical Oncology, Chinese People's Liberation Army (PLA) General Hospital, Beijing, 100853, China. liurong301@126.com.
8
Department of General Surgery, Tianjin Hospital of ITCWM, Nankai Hospital, Tianjin, 300100, China. wangximo@126.com.

Abstract

Intraportal transplantation of islets is no longer considered to be an ideal procedure and finding the extrahepatic alternative site is becoming a subject of high priority. Herein, in this study, we would introduce our initial outcomes of using gastric submucosa (GS) and liver as sites of islet autotransplantation in pancreatectomized diabetic Beagles. Total pancreatectomy was performed in Beagles and then their own islets extracted from the excised pancreas were transplanted into GS (GS group, n=8) or intrahepatic via portal vein (PV group, n=5). Forty-eight hours post transplantation, graft containing tissue harvested from the recipients revealed the presence of insulin-positive cells. All recipients in GS group achieved euglycemia within 1 day, but returned to a diabetic state at 6 to 8 days post-transplantation (mean survival time, 7.16±0.69 days). However, all of the animals kept normoglycemic until 85 to 155 days post-transplantation in PV group (mean survival time, 120±28.58 days; P<0.01 vs. GS group). The results of intravenous glucose tolerance test (IVGTT) confirmed that the marked improvement in glycometabolism was obtained in intrahepatic islet autotransplantation. Thus, our findings indicate that the liver is still superior to the GS as the site of islet transplantation, at least in our islet autotransplant model in pancreatectomized diabetic Beagles.

KEYWORDS:

Beagle; gastric submucosa; islet autotransplantation; portal vein

PMID:
27465328
DOI:
10.1007/s11596-016-1620-9
[Indexed for MEDLINE]

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