Synaptopodin-2: a potential tumor suppressor

Abstract Initially identified as an actin-binding protein containing a PSD95-DLG-ZO1 Domain (PZD domain), Synaptopodin 2 (SYNPO2) has long been considered a structural protein ubiquitously expressed in muscular tissues. However, emerging evidence suggests that SYNPO2 performs diverse functions in ca...

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Main Authors: Zequn Zheng, Yongfei Song
Format: Article
Language:English
Published: BMC 2023-08-01
Series:Cancer Cell International
Subjects:
Online Access:https://doi.org/10.1186/s12935-023-03013-6
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author Zequn Zheng
Yongfei Song
author_facet Zequn Zheng
Yongfei Song
author_sort Zequn Zheng
collection DOAJ
description Abstract Initially identified as an actin-binding protein containing a PSD95-DLG-ZO1 Domain (PZD domain), Synaptopodin 2 (SYNPO2) has long been considered a structural protein ubiquitously expressed in muscular tissues. However, emerging evidence suggests that SYNPO2 performs diverse functions in cancers in addition to its role in microfilament assembly. In most cancers, high SYNPO2 expression is positively correlated with a good prognosis, suggesting its role as a novel tumor suppressor. Abnormal SYNPO2 expression affects autophagy generation, particularly mitophagy induced by low oxidation or viral infection, as well as chaperone-mediated autophagy triggered by microfilament damage. Mechanically, SYNPO2 regulates tumor growth, metastasis, and invasion via activating the PI3K/AKT/mTOR signal and Hippo signaling pathways. Moreover, the subcellular localization, promoter methylation and single nucleotide polymorphism (SNP) of SYNPO2 have been associated with cancer progression and clinical outcomes, highlighting its potential as a prognostic or diagnostic target for this patient population. This review focuses on the role of SYNPO2 in cancer, including its generation, epigenetic modification, subcellular localization, and biological function.
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spelling doaj.art-bca85d9ea7704b819b35428a3104561a2023-11-20T10:59:31ZengBMCCancer Cell International1475-28672023-08-0123111110.1186/s12935-023-03013-6Synaptopodin-2: a potential tumor suppressorZequn Zheng0Yongfei Song1Ningbo Institute of Innovation for Combined Medicine and Engineering, Ningbo Medical Centre Lihuili Hospital, Ningbo UniversityNingbo Institute of Innovation for Combined Medicine and Engineering, Ningbo Medical Centre Lihuili Hospital, Ningbo UniversityAbstract Initially identified as an actin-binding protein containing a PSD95-DLG-ZO1 Domain (PZD domain), Synaptopodin 2 (SYNPO2) has long been considered a structural protein ubiquitously expressed in muscular tissues. However, emerging evidence suggests that SYNPO2 performs diverse functions in cancers in addition to its role in microfilament assembly. In most cancers, high SYNPO2 expression is positively correlated with a good prognosis, suggesting its role as a novel tumor suppressor. Abnormal SYNPO2 expression affects autophagy generation, particularly mitophagy induced by low oxidation or viral infection, as well as chaperone-mediated autophagy triggered by microfilament damage. Mechanically, SYNPO2 regulates tumor growth, metastasis, and invasion via activating the PI3K/AKT/mTOR signal and Hippo signaling pathways. Moreover, the subcellular localization, promoter methylation and single nucleotide polymorphism (SNP) of SYNPO2 have been associated with cancer progression and clinical outcomes, highlighting its potential as a prognostic or diagnostic target for this patient population. This review focuses on the role of SYNPO2 in cancer, including its generation, epigenetic modification, subcellular localization, and biological function.https://doi.org/10.1186/s12935-023-03013-6Synaptopodin 2YAP1MitophagyMolecular Chaperone-Assisted Selective AutophagySingle nucleotide polymorphism
spellingShingle Zequn Zheng
Yongfei Song
Synaptopodin-2: a potential tumor suppressor
Cancer Cell International
Synaptopodin 2
YAP1
Mitophagy
Molecular Chaperone-Assisted Selective Autophagy
Single nucleotide polymorphism
title Synaptopodin-2: a potential tumor suppressor
title_full Synaptopodin-2: a potential tumor suppressor
title_fullStr Synaptopodin-2: a potential tumor suppressor
title_full_unstemmed Synaptopodin-2: a potential tumor suppressor
title_short Synaptopodin-2: a potential tumor suppressor
title_sort synaptopodin 2 a potential tumor suppressor
topic Synaptopodin 2
YAP1
Mitophagy
Molecular Chaperone-Assisted Selective Autophagy
Single nucleotide polymorphism
url https://doi.org/10.1186/s12935-023-03013-6
work_keys_str_mv AT zequnzheng synaptopodin2apotentialtumorsuppressor
AT yongfeisong synaptopodin2apotentialtumorsuppressor