Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human Tregs

Abstract A subset of CD4 + lymphocytes, regulatory T cells (Tregs), are necessary for central tolerance and function as suppressors of autoimmunity against self-antigens. The SRC-3 coactivator is an oncogene in multiple cancers and is capable of potentiating numerous transcription factors in a wide...

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Main Authors: Bryan C. Nikolai, Prashi Jain, David L. Cardenas, Brian York, Qin Feng, Neil J. McKenna, Subhamoy Dasgupta, David M. Lonard, Bert W. O’Malley
Format: Article
Language:English
Published: Nature Portfolio 2021-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-82945-3
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author Bryan C. Nikolai
Prashi Jain
David L. Cardenas
Brian York
Qin Feng
Neil J. McKenna
Subhamoy Dasgupta
David M. Lonard
Bert W. O’Malley
author_facet Bryan C. Nikolai
Prashi Jain
David L. Cardenas
Brian York
Qin Feng
Neil J. McKenna
Subhamoy Dasgupta
David M. Lonard
Bert W. O’Malley
author_sort Bryan C. Nikolai
collection DOAJ
description Abstract A subset of CD4 + lymphocytes, regulatory T cells (Tregs), are necessary for central tolerance and function as suppressors of autoimmunity against self-antigens. The SRC-3 coactivator is an oncogene in multiple cancers and is capable of potentiating numerous transcription factors in a wide variety of cell types. Src-3 knockout mice display broad lymphoproliferation and hypersensitivity to systemic inflammation. Using publicly available bioinformatics data and directed cellular approaches, we show that SRC-3 also is highly enriched in Tregs in mice and humans. Human Tregs lose phenotypic characteristics when SRC-3 is depleted or pharmacologically inhibited, including failure of induction from resting T cells and loss of the ability to suppress proliferation of stimulated T cells. These data support a model for SRC-3 as a coactivator that actively participates in protection from autoimmunity and may support immune evasion of cancers by contributing to the biology of Tregs.
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spelling doaj.art-c5aa049a9d6547ecb096ffd0b12d8bba2022-12-21T21:19:42ZengNature PortfolioScientific Reports2045-23222021-02-011111910.1038/s41598-021-82945-3Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human TregsBryan C. Nikolai0Prashi Jain1David L. Cardenas2Brian York3Qin Feng4Neil J. McKenna5Subhamoy Dasgupta6David M. Lonard7Bert W. O’Malley8Department of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineDepartment of Molecular and Cellular Biology, Baylor College of MedicineAbstract A subset of CD4 + lymphocytes, regulatory T cells (Tregs), are necessary for central tolerance and function as suppressors of autoimmunity against self-antigens. The SRC-3 coactivator is an oncogene in multiple cancers and is capable of potentiating numerous transcription factors in a wide variety of cell types. Src-3 knockout mice display broad lymphoproliferation and hypersensitivity to systemic inflammation. Using publicly available bioinformatics data and directed cellular approaches, we show that SRC-3 also is highly enriched in Tregs in mice and humans. Human Tregs lose phenotypic characteristics when SRC-3 is depleted or pharmacologically inhibited, including failure of induction from resting T cells and loss of the ability to suppress proliferation of stimulated T cells. These data support a model for SRC-3 as a coactivator that actively participates in protection from autoimmunity and may support immune evasion of cancers by contributing to the biology of Tregs.https://doi.org/10.1038/s41598-021-82945-3
spellingShingle Bryan C. Nikolai
Prashi Jain
David L. Cardenas
Brian York
Qin Feng
Neil J. McKenna
Subhamoy Dasgupta
David M. Lonard
Bert W. O’Malley
Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human Tregs
Scientific Reports
title Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human Tregs
title_full Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human Tregs
title_fullStr Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human Tregs
title_full_unstemmed Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human Tregs
title_short Steroid receptor coactivator 3 (SRC-3/AIB1) is enriched and functional in mouse and human Tregs
title_sort steroid receptor coactivator 3 src 3 aib1 is enriched and functional in mouse and human tregs
url https://doi.org/10.1038/s41598-021-82945-3
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