Volume 17, Issue 1 e70048
REVIEW ARTICLE
Open Access

Advancements and Challenges in Immune Protection Strategies for Islet Transplantation

Xue Wang

Xue Wang

State Key Laboratory of Female Fertility Promotion, Department of Obstetrics and Gynecology, Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, China

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Ziyuan Zeng

Ziyuan Zeng

State Key Laboratory of Female Fertility Promotion, Department of Obstetrics and Gynecology, Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, China

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Dayan Li

Dayan Li

Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Clinical Stem Cell Research Center, Peking University Third Hospital, Peking University, Beijing, China

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Kai Wang

Kai Wang

Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Clinical Stem Cell Research Center, Peking University Third Hospital, Peking University, Beijing, China

Beijing Advanced Center of Cellular Homeostasis and Aging-Related Diseases, Peking University, Beijing, China

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Wei Zhang

Corresponding Author

Wei Zhang

TianXinFu (Beijing) Medical Appliance co. Ltd., Beijing, China

Correspondence:

Wei Zhang ([email protected])

Yang Yu ([email protected])

Xi Wang ([email protected])

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Yang Yu

Corresponding Author

Yang Yu

State Key Laboratory of Female Fertility Promotion, Department of Obstetrics and Gynecology, Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, China

Beijing Advanced Center of Cellular Homeostasis and Aging-Related Diseases, Peking University, Beijing, China

Correspondence:

Wei Zhang ([email protected])

Yang Yu ([email protected])

Xi Wang ([email protected])

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Xi Wang

Corresponding Author

Xi Wang

State Key Laboratory of Female Fertility Promotion, Department of Obstetrics and Gynecology, Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, China

Beijing Advanced Center of Cellular Homeostasis and Aging-Related Diseases, Peking University, Beijing, China

Institute of Advanced Clinical Medicine, Peking University, Beijing, China

Correspondence:

Wei Zhang ([email protected])

Yang Yu ([email protected])

Xi Wang ([email protected])

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First published: 20 January 2025
Citations: 1

Funding: This work was supported by National Key R&D Program of China (2022YFA1104804); National Natural Science Foundation of China (82472171, 32401144); Beijing Natural Science Foundation (L244089, L234021); The Innovation and Translation Fund of Peking University Third Hospital (BYSYZHKC2023106).

ABSTRACT

Pancreatic islet transplantation is a crucial treatment for managing type 1 diabetes (T1D) in clinical settings. However, the limited availability of human cadaveric islet donors and the need for ongoing administration of immunosuppressive agents post-transplantation hinder the widespread use of this treatment. Stem cell-derived islet organoids have emerged as an effective alternative to primary human islets. Nevertheless, implementing this cell replacement therapy still requires chronic immune suppression, which may result in life-long side effects. To address these challenges, innovations such as encapsulation devices, universal stem cells, and immunomodulatory strategies are being developed to mitigate immune rejection and prolong the function of the transplant. This review outlines the contemporary challenges in pancreatic β cell therapy, particularly immune rejection, and recent progress in immune-isolation devices, hypoimmunogenic stem cells, and immune regulation of transplants. A comprehensive evaluation of the advantages and limitations of these approaches will contribute to improved future clinical investigations. With these promising advancements, the application of pancreatic β cell therapy holds the potential to effectively treat T1D and benefit a larger population of T1D patients.

Conflicts of Interest

The authors declare no conflicts of interest.

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