Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell Lymphoma

The loss of CD47 on aging cells serves as a signal to macrophages to eliminate the target. Therefore, CD47 is a “do-not-eat-me” sign preventing macrophagal phagocytosis via interaction with its ligand SIRPα. Malignant lymphocytes of mycosis fungoides and Sézary syndrome express CD47 highly, thus, be...

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Main Authors: Amy Xiao, Oleg E. Akilov
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/11/22/3591
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author Amy Xiao
Oleg E. Akilov
author_facet Amy Xiao
Oleg E. Akilov
author_sort Amy Xiao
collection DOAJ
description The loss of CD47 on aging cells serves as a signal to macrophages to eliminate the target. Therefore, CD47 is a “do-not-eat-me” sign preventing macrophagal phagocytosis via interaction with its ligand SIRPα. Malignant lymphocytes of mycosis fungoides and Sézary syndrome express CD47 highly, thus, being ideal candidates for targeted anti-CD47 therapies. The classes of current anti-CD47-SIRPα therapeutic molecules present in a large variety and include monoclonal antibodies against CD47 and SIRPα, bioengineered SIRPα proteins, miRNAs, and bispecific antibodies. We provided a detailed analysis of all available investigational drugs in a contest of cutaneous T-cell lymphoma. A combination of blockade of the CD47-SIRPα axis and secondary targets in the tumor microenvironment (TME) may improve the clinical efficacy of current immunotherapeutic approaches. We evaluated the possible combination and outlined the most promising one.
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spelling doaj.art-e3638040bc67479c9cad8ffb9e2a7d012023-11-24T07:57:54ZengMDPI AGCells2073-44092022-11-011122359110.3390/cells11223591Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell LymphomaAmy Xiao0Oleg E. Akilov1University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USACutaneous Lymphoma Program, University of Pittsburgh, Pittsburgh, PA 15261, USAThe loss of CD47 on aging cells serves as a signal to macrophages to eliminate the target. Therefore, CD47 is a “do-not-eat-me” sign preventing macrophagal phagocytosis via interaction with its ligand SIRPα. Malignant lymphocytes of mycosis fungoides and Sézary syndrome express CD47 highly, thus, being ideal candidates for targeted anti-CD47 therapies. The classes of current anti-CD47-SIRPα therapeutic molecules present in a large variety and include monoclonal antibodies against CD47 and SIRPα, bioengineered SIRPα proteins, miRNAs, and bispecific antibodies. We provided a detailed analysis of all available investigational drugs in a contest of cutaneous T-cell lymphoma. A combination of blockade of the CD47-SIRPα axis and secondary targets in the tumor microenvironment (TME) may improve the clinical efficacy of current immunotherapeutic approaches. We evaluated the possible combination and outlined the most promising one.https://www.mdpi.com/2073-4409/11/22/3591CD47SIRPαimmunotherapymycosis fungoidesSézary syndrome
spellingShingle Amy Xiao
Oleg E. Akilov
Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell Lymphoma
Cells
CD47
SIRPα
immunotherapy
mycosis fungoides
Sézary syndrome
title Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell Lymphoma
title_full Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell Lymphoma
title_fullStr Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell Lymphoma
title_full_unstemmed Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell Lymphoma
title_short Targeting the CD47-SIRPα Axis: Present Therapies and the Future for Cutaneous T-cell Lymphoma
title_sort targeting the cd47 sirpα axis present therapies and the future for cutaneous t cell lymphoma
topic CD47
SIRPα
immunotherapy
mycosis fungoides
Sézary syndrome
url https://www.mdpi.com/2073-4409/11/22/3591
work_keys_str_mv AT amyxiao targetingthecd47sirpaaxispresenttherapiesandthefutureforcutaneoustcelllymphoma
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