Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T Lymphocytes

We have examined the effect of progranulin (PGRN) on human T cell proliferation and its underlying mechanism. We show that PGRN inhibits the PHA-induced multiplication of T lymphocytes. It increases the number of iTregs when T lymphocytes are activated by PHA but does not do so in the absence of PHA...

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Main Authors: Kyu Hwan Kwack, Hyeon-Woo Lee
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2017/7682083
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author Kyu Hwan Kwack
Hyeon-Woo Lee
author_facet Kyu Hwan Kwack
Hyeon-Woo Lee
author_sort Kyu Hwan Kwack
collection DOAJ
description We have examined the effect of progranulin (PGRN) on human T cell proliferation and its underlying mechanism. We show that PGRN inhibits the PHA-induced multiplication of T lymphocytes. It increases the number of iTregs when T lymphocytes are activated by PHA but does not do so in the absence of PHA. PGRN-mediated inhibition of T lymphocyte proliferation, as well as the induction of iTregs, was completely reversed by a TGF-β inhibitor or a Treg inhibitor. PGRN induced TGF-β secretion in the presence of PHA whereas it did not in the absence of PHA. Our findings indicate that PGRN suppresses T lymphocyte proliferation by enhancing the formation of iTregs from activated T lymphocytes in response to TGF-β.
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series Mediators of Inflammation
spelling doaj-art-6537816bc49642ff9c1a93e58a5bc2972025-02-03T01:10:39ZengWileyMediators of Inflammation0962-93511466-18612017-01-01201710.1155/2017/76820837682083Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T LymphocytesKyu Hwan Kwack0Hyeon-Woo Lee1Institute of Oral Biology, School of Dentistry, Graduate School, Kyung Hee University, Seoul 02447, Republic of KoreaInstitute of Oral Biology, School of Dentistry, Graduate School, Kyung Hee University, Seoul 02447, Republic of KoreaWe have examined the effect of progranulin (PGRN) on human T cell proliferation and its underlying mechanism. We show that PGRN inhibits the PHA-induced multiplication of T lymphocytes. It increases the number of iTregs when T lymphocytes are activated by PHA but does not do so in the absence of PHA. PGRN-mediated inhibition of T lymphocyte proliferation, as well as the induction of iTregs, was completely reversed by a TGF-β inhibitor or a Treg inhibitor. PGRN induced TGF-β secretion in the presence of PHA whereas it did not in the absence of PHA. Our findings indicate that PGRN suppresses T lymphocyte proliferation by enhancing the formation of iTregs from activated T lymphocytes in response to TGF-β.http://dx.doi.org/10.1155/2017/7682083
spellingShingle Kyu Hwan Kwack
Hyeon-Woo Lee
Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T Lymphocytes
Mediators of Inflammation
title Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T Lymphocytes
title_full Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T Lymphocytes
title_fullStr Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T Lymphocytes
title_full_unstemmed Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T Lymphocytes
title_short Progranulin Inhibits Human T Lymphocyte Proliferation by Inducing the Formation of Regulatory T Lymphocytes
title_sort progranulin inhibits human t lymphocyte proliferation by inducing the formation of regulatory t lymphocytes
url http://dx.doi.org/10.1155/2017/7682083
work_keys_str_mv AT kyuhwankwack progranulininhibitshumantlymphocyteproliferationbyinducingtheformationofregulatorytlymphocytes
AT hyeonwoolee progranulininhibitshumantlymphocyteproliferationbyinducingtheformationofregulatorytlymphocytes