Logo Annals of Transplantation Logo Annals of Transplantation Logo Annals of Transplantation

03 March 2017 : Original article  

Role of High-Mobility Group Box 1 (HMGB1) in Transplantation of Rat Pancreatic Islets

Seonghee Jeong1ABCEF, Song Lee12AC, Chan Mee-Lee1AB, In Kyong Shim2AB, Song-Cheol Kim324AD*

DOI: 10.12659/AOT.900731

Ann Transplant 2017; 22:121-127

Abstract

BACKGROUND: The potential role of tissue damage factor high-mobility group box 1 (HMGB1) in islet cell transplantation is poorly understood. We investigated the role of HMGB1 in pancreatic islet cell isolation and culture in vitro and after pancreatic islet cell transplantation into diabetic nude mice in vivo.

MATERIAL AND METHODS: To generate damaged islets, isolated islets were treated with 1 mg/mL lipopolysaccharide (LPS). Some islets were pretreated with a neutralizing anti-HMGB1 antibody before LPS treatment to investigate the effect of HMGB1 on isolated islets damaged by LPS. Cell viability and insulin secretory function were analyzed 48 h after LPS and anti-HMGB1 antibody treatment. Streptozotocin-induced diabetes mice were injected with an anti-HMGB1 antibody 1 h prior to transplantation as a marginal islet mass. After transplantation, blood glucose levels were measured.

RESULTS: HMGB1 was more abundant in isolated islets than in other tissues, including pancreatic tissue. Anti-HMGB1 antibody pretreatment in LPS-treated islets improved cell viability and insulin secretory function and reduced the production of TNF-α and IL-1β. Streptozotocin-induced diabetic mice treated with an anti-HMGB1 antibody after marginal mass islet cell transplantation recovered to normal blood glucose levels more rapidly and maintained their euglycemic status compared to controls.

CONCLUSIONS: HMGB1 plays a significant role in early loss of transplanted islet cells. Based on these results, the development of new drugs that inhibit HMGB1 secretion could improve the efficacy and efficiency of clinical islet cell transplantation.

Keywords: Diabetes Mellitus, HMGB1 Protein, Islets of Langerhans Transplantation

Comments

In Press

06 May 2022 : Original article  

Phosphatidylethanol (PEth) for Monitoring Sobriety in Liver Transplant Candidates: Preliminary Results of D...

Ann Transplant In Press; DOI: 10.12659/AOT.936293  

Most Viewed Current Articles

29 Dec 2021 : Original article  

Efficacy and Safety of Tacrolimus-Based Maintenance Regimens in De Novo Kidney Transplant Recipients: A Sys...

DOI :10.12659/AOT.933588

Ann Transplant 2021; 26:e933588

26 Jan 2022 : Review article  

Recurrence of Hepatocellular Carcinoma After Liver Transplantation: Risk Factors and Predictive Models

DOI :10.12659/AOT.934924

Ann Transplant 2022; 27:e934924

24 Jul 2020 : Review article  

Kidney Transplantation in the Times of COVID-19 – A Literature Review

DOI :10.12659/AOT.925755

Ann Transplant 2020; 25:e925755

15 Mar 2022 : Case report  

Combined Liver, Pancreas-Duodenum, and Kidney Transplantation for Patients with Hepatitis B Cirrhosis, Urem...

DOI :10.12659/AOT.935860

Ann Transplant 2022; 27:e935860

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Annals of Transplantation eISSN: 2329-0358
Annals of Transplantation eISSN: 2329-0358