Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion

Abstract Oral Squamous Cell Carcinoma (OSCC) is the most common malignant cancer affecting oral cavity. Recent studies have demonstrated that Ubiquitin-specific protease 7 (USP7) was upregulated in several types of cancers. USP7 expression was associated with various proto-oncogenes and tumor suppre...

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Main Authors: Xiaojie Yang, Jiamin Jin, Jinfeng Yang, Lihua Zhou, Sisi Mi, Guangying Qi
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2021-11-01
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572021000600105&tlng=en
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author Xiaojie Yang
Jiamin Jin
Jinfeng Yang
Lihua Zhou
Sisi Mi
Guangying Qi
author_facet Xiaojie Yang
Jiamin Jin
Jinfeng Yang
Lihua Zhou
Sisi Mi
Guangying Qi
author_sort Xiaojie Yang
collection DOAJ
description Abstract Oral Squamous Cell Carcinoma (OSCC) is the most common malignant cancer affecting oral cavity. Recent studies have demonstrated that Ubiquitin-specific protease 7 (USP7) was upregulated in several types of cancers. USP7 expression was associated with various proto-oncogenes and tumor suppressor genes. However, USP7 expression level and its functional role in OSCC is unclear. In the current study, we showed that USP7 expression in OSCC tissues was generally upregulated compared to normal adjacent tissues by using IHC. Furthermore, statistical analysis uncovered that USP7 expression was positively correlated with Ki-67, MMP2, VEGF in OSCC tissues. Importantly, high USP7 expression was significantly correlated with lymph node metastasis and histological differentiation in OSCC patients. So, our hypothesis is that USP7 plays a tumor-promoting role in OSCC. Knocking down of USP7 in tumor cells not only suppressed HSC3 cells proliferation, migration and invasion, but also promoted cell apoptosis. Moreover, USP7 siRNA blocked the activation of Akt/ERK signaling pathway. In conclusion, data presented here suggests that USP7 promotes the progression of OSCC. USP7 may be used as a new therapeutic target for OSCC diagnosis and treatment.
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spelling doaj.art-f03fa6d776f645e58dd9070d6067e2652022-12-21T19:32:48ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1678-46852021-11-0144410.1590/1678-4685-gmb-2021-0058Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasionXiaojie YangJiamin Jinhttps://orcid.org/0000-0001-9141-3350Jinfeng YangLihua ZhouSisi MiGuangying QiAbstract Oral Squamous Cell Carcinoma (OSCC) is the most common malignant cancer affecting oral cavity. Recent studies have demonstrated that Ubiquitin-specific protease 7 (USP7) was upregulated in several types of cancers. USP7 expression was associated with various proto-oncogenes and tumor suppressor genes. However, USP7 expression level and its functional role in OSCC is unclear. In the current study, we showed that USP7 expression in OSCC tissues was generally upregulated compared to normal adjacent tissues by using IHC. Furthermore, statistical analysis uncovered that USP7 expression was positively correlated with Ki-67, MMP2, VEGF in OSCC tissues. Importantly, high USP7 expression was significantly correlated with lymph node metastasis and histological differentiation in OSCC patients. So, our hypothesis is that USP7 plays a tumor-promoting role in OSCC. Knocking down of USP7 in tumor cells not only suppressed HSC3 cells proliferation, migration and invasion, but also promoted cell apoptosis. Moreover, USP7 siRNA blocked the activation of Akt/ERK signaling pathway. In conclusion, data presented here suggests that USP7 promotes the progression of OSCC. USP7 may be used as a new therapeutic target for OSCC diagnosis and treatment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572021000600105&tlng=enOral Squamous Cell CarcinomaUSP7siRNAproliferationinvasion
spellingShingle Xiaojie Yang
Jiamin Jin
Jinfeng Yang
Lihua Zhou
Sisi Mi
Guangying Qi
Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion
Genetics and Molecular Biology
Oral Squamous Cell Carcinoma
USP7
siRNA
proliferation
invasion
title Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion
title_full Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion
title_fullStr Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion
title_full_unstemmed Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion
title_short Expression of Ubiquitin-specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion
title_sort expression of ubiquitin specific protease 7 in oral squamous cell carcinoma promotes tumor cell proliferation and invasion
topic Oral Squamous Cell Carcinoma
USP7
siRNA
proliferation
invasion
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572021000600105&tlng=en
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