Homeostatic T Cell Proliferation after Islet Transplantation

Pancreatic islet transplantation in patients with type 1 diabetes mellitus is performed under immunosuppression to avoid alloreactive T cell responses and to control the reactivation of autoreactive memory T cells. However, lymphopenia associated with immunosuppression and T cell depletion can induc...

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Main Authors: Paolo Monti, Lorenzo Piemonti
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Clinical and Developmental Immunology
Online Access:http://dx.doi.org/10.1155/2013/217934
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author Paolo Monti
Lorenzo Piemonti
author_facet Paolo Monti
Lorenzo Piemonti
author_sort Paolo Monti
collection DOAJ
description Pancreatic islet transplantation in patients with type 1 diabetes mellitus is performed under immunosuppression to avoid alloreactive T cell responses and to control the reactivation of autoreactive memory T cells. However, lymphopenia associated with immunosuppression and T cell depletion can induce a paradoxical expansion of lymphocyte subsets under the influence of homeostatic proliferation. Homeostatic T cell proliferation is mainly driven by the IL-7/IL-7 receptor axis, a molecular pathway which is not affected by standard immune-suppressive drugs and, consequently, represents a novel potential target for immuno-modulatory strategies. In this review, we will discuss how homeostatic T cell proliferation can support autoimmunity recurrence after islet transplantation and how it can be targeted by new therapeutic approaches.
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institution Kabale University
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series Clinical and Developmental Immunology
spelling doaj-art-f1c6454b1e2e4068a7b01fa70c1da79f2025-02-03T01:23:32ZengWileyClinical and Developmental Immunology1740-25221740-25302013-01-01201310.1155/2013/217934217934Homeostatic T Cell Proliferation after Islet TransplantationPaolo Monti0Lorenzo Piemonti1San Raffaele Diabetes Research Institute, San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, ItalySan Raffaele Diabetes Research Institute, San Raffaele Scientific Institute, Via Olgettina 60, 20132 Milan, ItalyPancreatic islet transplantation in patients with type 1 diabetes mellitus is performed under immunosuppression to avoid alloreactive T cell responses and to control the reactivation of autoreactive memory T cells. However, lymphopenia associated with immunosuppression and T cell depletion can induce a paradoxical expansion of lymphocyte subsets under the influence of homeostatic proliferation. Homeostatic T cell proliferation is mainly driven by the IL-7/IL-7 receptor axis, a molecular pathway which is not affected by standard immune-suppressive drugs and, consequently, represents a novel potential target for immuno-modulatory strategies. In this review, we will discuss how homeostatic T cell proliferation can support autoimmunity recurrence after islet transplantation and how it can be targeted by new therapeutic approaches.http://dx.doi.org/10.1155/2013/217934
spellingShingle Paolo Monti
Lorenzo Piemonti
Homeostatic T Cell Proliferation after Islet Transplantation
Clinical and Developmental Immunology
title Homeostatic T Cell Proliferation after Islet Transplantation
title_full Homeostatic T Cell Proliferation after Islet Transplantation
title_fullStr Homeostatic T Cell Proliferation after Islet Transplantation
title_full_unstemmed Homeostatic T Cell Proliferation after Islet Transplantation
title_short Homeostatic T Cell Proliferation after Islet Transplantation
title_sort homeostatic t cell proliferation after islet transplantation
url http://dx.doi.org/10.1155/2013/217934
work_keys_str_mv AT paolomonti homeostatictcellproliferationafterislettransplantation
AT lorenzopiemonti homeostatictcellproliferationafterislettransplantation