CCR4 as a Therapeutic Target for Cancer Immunotherapy

CCR4 is a chemokine receptor mainly expressed by T cells. It is the receptor for two CC chemokine ligands, CCL17 and CCL22. Originally, the expression of CCR4 was described as highly selective for helper T type 2 (Th2) cells. Later, its expression was extended to other T cell subsets such as regulat...

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Main Author: Osamu Yoshie
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/21/5542
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author Osamu Yoshie
author_facet Osamu Yoshie
author_sort Osamu Yoshie
collection DOAJ
description CCR4 is a chemokine receptor mainly expressed by T cells. It is the receptor for two CC chemokine ligands, CCL17 and CCL22. Originally, the expression of CCR4 was described as highly selective for helper T type 2 (Th2) cells. Later, its expression was extended to other T cell subsets such as regulatory T (Treg) cells and Th17 cells. CCR4 has long been regarded as a potential therapeutic target for allergic diseases such as atopic dermatitis and bronchial asthma. Furthermore, the findings showing that CCR4 is strongly expressed by T cell malignancies such as adult T cell leukemia/lymphoma (ATLL) and cutaneous T cell lymphomas (CTCLs) have led to the development and clinical application of the fully humanized and glyco-engineered monoclonal anti-CCR4 Mogamulizumab in refractory/relapsed ATLL and CTCLs with remarkable successes. However, Mogamulizumab often induces severe adverse events in the skin possibly because of its efficient depletion of Treg cells. In particular, treatment with Mogamulizumab prior to allogenic hematopoietic stem cell transplantation (allo-HSCT), the only curative option of these T cell malignancies, often leads to severe glucocorticoid-refractory graft-versus-host diseases. The efficient depletion of Treg cells by Mogamulizumab has also led to its clinical trials in advanced solid tumors singly or in combination with immune checkpoint inhibitors. The main focus of this review is CCR4; its expression on normal and malignant T cells and its significance as a therapeutic target in cancer immunotherapy.
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spelling doaj.art-97b407ee681944ee986b13dae52be6d52023-11-22T20:36:46ZengMDPI AGCancers2072-66942021-11-011321554210.3390/cancers13215542CCR4 as a Therapeutic Target for Cancer ImmunotherapyOsamu Yoshie0Health and Kampo Institute, Sendai 981-3205, JapanCCR4 is a chemokine receptor mainly expressed by T cells. It is the receptor for two CC chemokine ligands, CCL17 and CCL22. Originally, the expression of CCR4 was described as highly selective for helper T type 2 (Th2) cells. Later, its expression was extended to other T cell subsets such as regulatory T (Treg) cells and Th17 cells. CCR4 has long been regarded as a potential therapeutic target for allergic diseases such as atopic dermatitis and bronchial asthma. Furthermore, the findings showing that CCR4 is strongly expressed by T cell malignancies such as adult T cell leukemia/lymphoma (ATLL) and cutaneous T cell lymphomas (CTCLs) have led to the development and clinical application of the fully humanized and glyco-engineered monoclonal anti-CCR4 Mogamulizumab in refractory/relapsed ATLL and CTCLs with remarkable successes. However, Mogamulizumab often induces severe adverse events in the skin possibly because of its efficient depletion of Treg cells. In particular, treatment with Mogamulizumab prior to allogenic hematopoietic stem cell transplantation (allo-HSCT), the only curative option of these T cell malignancies, often leads to severe glucocorticoid-refractory graft-versus-host diseases. The efficient depletion of Treg cells by Mogamulizumab has also led to its clinical trials in advanced solid tumors singly or in combination with immune checkpoint inhibitors. The main focus of this review is CCR4; its expression on normal and malignant T cells and its significance as a therapeutic target in cancer immunotherapy.https://www.mdpi.com/2072-6694/13/21/5542chemokinechemokine receptorCCR4T cell subsetHTLV-1ATLL
spellingShingle Osamu Yoshie
CCR4 as a Therapeutic Target for Cancer Immunotherapy
Cancers
chemokine
chemokine receptor
CCR4
T cell subset
HTLV-1
ATLL
title CCR4 as a Therapeutic Target for Cancer Immunotherapy
title_full CCR4 as a Therapeutic Target for Cancer Immunotherapy
title_fullStr CCR4 as a Therapeutic Target for Cancer Immunotherapy
title_full_unstemmed CCR4 as a Therapeutic Target for Cancer Immunotherapy
title_short CCR4 as a Therapeutic Target for Cancer Immunotherapy
title_sort ccr4 as a therapeutic target for cancer immunotherapy
topic chemokine
chemokine receptor
CCR4
T cell subset
HTLV-1
ATLL
url https://www.mdpi.com/2072-6694/13/21/5542
work_keys_str_mv AT osamuyoshie ccr4asatherapeutictargetforcancerimmunotherapy