Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic Targeting

The role of the tumour microenvironement (TME) in cancer progression and resistance to therapies is now widely recognized. The most prominent non-immune cell type in the microenvironment of oral cancer (OSCC) is cancer-associated fibroblasts (CAF). Although CAF are a poorly characterised and heterog...

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Main Authors: Kamila J. Bienkowska, Christopher J. Hanley, Gareth J. Thomas
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-07-01
Series:Frontiers in Oral Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/froh.2021.686337/full
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author Kamila J. Bienkowska
Christopher J. Hanley
Gareth J. Thomas
Gareth J. Thomas
author_facet Kamila J. Bienkowska
Christopher J. Hanley
Gareth J. Thomas
Gareth J. Thomas
author_sort Kamila J. Bienkowska
collection DOAJ
description The role of the tumour microenvironement (TME) in cancer progression and resistance to therapies is now widely recognized. The most prominent non-immune cell type in the microenvironment of oral cancer (OSCC) is cancer-associated fibroblasts (CAF). Although CAF are a poorly characterised and heterogenous cell population, those with an “activated” myofibroblastic phenotype have been shown to support OSCC progression, promoting growth, invasion and numerous other “hallmarks of malignancy.” CAF also confer broad resistance to different types of therapy, including chemo/radiotherapy and EGFR inhibitors; consistent with this, CAF-rich OSCC are associated with poor prognosis. In recent years, much CAF research has focused on their immunological role in the tumour microenvironment, showing that CAF shield tumours from immune attack through multiple mechanisms, and particularly on their role in promoting resistance to anti-PD-1/PD-L1 checkpoint inhibitors, an exciting development for the treatment of recurrent/metastatic oral cancer, but which fails in most patients. This review summarises our current understanding of CAF subtypes and function in OSCC and discusses the potential for targeting these cells therapeutically.
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spelling doaj.art-f030270b1c4e43aa84ff12282de8864f2022-12-21T18:27:07ZengFrontiers Media S.A.Frontiers in Oral Health2673-48422021-07-01210.3389/froh.2021.686337686337Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic TargetingKamila J. Bienkowska0Christopher J. Hanley1Gareth J. Thomas2Gareth J. Thomas3School of Cancer Sciences, University of Southampton, Southampton, United KingdomSchool of Cancer Sciences, University of Southampton, Southampton, United KingdomSchool of Cancer Sciences, University of Southampton, Southampton, United KingdomCancer Research UK and National Institute for Health Research (NIHR) Southampton Experimental Cancer Medicine Centre, Southampton, United KingdomThe role of the tumour microenvironement (TME) in cancer progression and resistance to therapies is now widely recognized. The most prominent non-immune cell type in the microenvironment of oral cancer (OSCC) is cancer-associated fibroblasts (CAF). Although CAF are a poorly characterised and heterogenous cell population, those with an “activated” myofibroblastic phenotype have been shown to support OSCC progression, promoting growth, invasion and numerous other “hallmarks of malignancy.” CAF also confer broad resistance to different types of therapy, including chemo/radiotherapy and EGFR inhibitors; consistent with this, CAF-rich OSCC are associated with poor prognosis. In recent years, much CAF research has focused on their immunological role in the tumour microenvironment, showing that CAF shield tumours from immune attack through multiple mechanisms, and particularly on their role in promoting resistance to anti-PD-1/PD-L1 checkpoint inhibitors, an exciting development for the treatment of recurrent/metastatic oral cancer, but which fails in most patients. This review summarises our current understanding of CAF subtypes and function in OSCC and discusses the potential for targeting these cells therapeutically.https://www.frontiersin.org/articles/10.3389/froh.2021.686337/fulloral cancerhead & neck squamous cell carcinomatumour microenvironmentcancer-associated fibroblastsmyofibroblasts
spellingShingle Kamila J. Bienkowska
Christopher J. Hanley
Gareth J. Thomas
Gareth J. Thomas
Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic Targeting
Frontiers in Oral Health
oral cancer
head & neck squamous cell carcinoma
tumour microenvironment
cancer-associated fibroblasts
myofibroblasts
title Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic Targeting
title_full Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic Targeting
title_fullStr Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic Targeting
title_full_unstemmed Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic Targeting
title_short Cancer-Associated Fibroblasts in Oral Cancer: A Current Perspective on Function and Potential for Therapeutic Targeting
title_sort cancer associated fibroblasts in oral cancer a current perspective on function and potential for therapeutic targeting
topic oral cancer
head & neck squamous cell carcinoma
tumour microenvironment
cancer-associated fibroblasts
myofibroblasts
url https://www.frontiersin.org/articles/10.3389/froh.2021.686337/full
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AT garethjthomas cancerassociatedfibroblastsinoralcanceracurrentperspectiveonfunctionandpotentialfortherapeutictargeting
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