Balancing STAT Activity as a Therapeutic Strategy

Driven by dysregulated IL-6 family member cytokine signaling in the tumor microenvironment (TME), aberrant signal transducer and activator of transcription (STAT3) and (STAT5) activation have been identified as key contributors to tumorigenesis. Following transformation, persistent STAT3 activation...

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Main Authors: Kelsey L. Polak, Noah M. Chernosky, Jacob M. Smigiel, Ilaria Tamagno, Mark W. Jackson
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/11/11/1716
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author Kelsey L. Polak
Noah M. Chernosky
Jacob M. Smigiel
Ilaria Tamagno
Mark W. Jackson
author_facet Kelsey L. Polak
Noah M. Chernosky
Jacob M. Smigiel
Ilaria Tamagno
Mark W. Jackson
author_sort Kelsey L. Polak
collection DOAJ
description Driven by dysregulated IL-6 family member cytokine signaling in the tumor microenvironment (TME), aberrant signal transducer and activator of transcription (STAT3) and (STAT5) activation have been identified as key contributors to tumorigenesis. Following transformation, persistent STAT3 activation drives the emergence of mesenchymal/cancer-stem cell (CSC) properties, important determinants of metastatic potential and therapy failure. Moreover, STAT3 signaling within tumor-associated macrophages and neutrophils drives secretion of factors that facilitate metastasis and suppress immune cell function. Persistent STAT5 activation is responsible for cancer cell maintenance through suppression of apoptosis and tumor suppressor signaling. Furthermore, STAT5-mediated CD4+/CD25+ regulatory T cells (T<sub>regs</sub>) have been implicated in suppression of immunosurveillance. We discuss these roles for STAT3 and STAT5, and weigh the attractiveness of different modes of targeting each cancer therapy. Moreover, we discuss how anti-tumorigenic STATs, including STAT1 and STAT2, may be leveraged to suppress the pro-tumorigenic functions of STAT3/STAT5 signaling.
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spelling doaj.art-38a71866c53b4a809fb902577535bda52023-08-02T03:58:59ZengMDPI AGCancers2072-66942019-11-011111171610.3390/cancers11111716cancers11111716Balancing STAT Activity as a Therapeutic StrategyKelsey L. Polak0Noah M. Chernosky1Jacob M. Smigiel2Ilaria Tamagno3Mark W. Jackson4Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USADepartment of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USADepartment of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USADepartment of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USADepartment of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USADriven by dysregulated IL-6 family member cytokine signaling in the tumor microenvironment (TME), aberrant signal transducer and activator of transcription (STAT3) and (STAT5) activation have been identified as key contributors to tumorigenesis. Following transformation, persistent STAT3 activation drives the emergence of mesenchymal/cancer-stem cell (CSC) properties, important determinants of metastatic potential and therapy failure. Moreover, STAT3 signaling within tumor-associated macrophages and neutrophils drives secretion of factors that facilitate metastasis and suppress immune cell function. Persistent STAT5 activation is responsible for cancer cell maintenance through suppression of apoptosis and tumor suppressor signaling. Furthermore, STAT5-mediated CD4+/CD25+ regulatory T cells (T<sub>regs</sub>) have been implicated in suppression of immunosurveillance. We discuss these roles for STAT3 and STAT5, and weigh the attractiveness of different modes of targeting each cancer therapy. Moreover, we discuss how anti-tumorigenic STATs, including STAT1 and STAT2, may be leveraged to suppress the pro-tumorigenic functions of STAT3/STAT5 signaling.https://www.mdpi.com/2072-6694/11/11/1716stat3stat5cancer progressioncancer-stem cellcytokinetherapy resistancemetastasisimmunosuppressiontumor microenvironmentproliferation
spellingShingle Kelsey L. Polak
Noah M. Chernosky
Jacob M. Smigiel
Ilaria Tamagno
Mark W. Jackson
Balancing STAT Activity as a Therapeutic Strategy
Cancers
stat3
stat5
cancer progression
cancer-stem cell
cytokine
therapy resistance
metastasis
immunosuppression
tumor microenvironment
proliferation
title Balancing STAT Activity as a Therapeutic Strategy
title_full Balancing STAT Activity as a Therapeutic Strategy
title_fullStr Balancing STAT Activity as a Therapeutic Strategy
title_full_unstemmed Balancing STAT Activity as a Therapeutic Strategy
title_short Balancing STAT Activity as a Therapeutic Strategy
title_sort balancing stat activity as a therapeutic strategy
topic stat3
stat5
cancer progression
cancer-stem cell
cytokine
therapy resistance
metastasis
immunosuppression
tumor microenvironment
proliferation
url https://www.mdpi.com/2072-6694/11/11/1716
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