Ask about this productRelated genes to: USP7 antibody
- Gene:
- USP7 NIH gene
- Name:
- ubiquitin specific peptidase 7
- Previous symbol:
- HAUSP
- Synonyms:
- -
- Chromosome:
- 16p13.2
- Locus Type:
- gene with protein product
- Date approved:
- 1998-10-12
- Date modifiied:
- 2017-01-04
Related products to: USP7 antibody
Related articles to: USP7 antibody
- Cervical squamous cell carcinoma (CSCC) is the most common subtype of cervical cancer (CC), which is a gynecological malignancy with poor survival. Immunotherapy is a promising approach to anti-CC. GMPS has been found to promote CC cell proliferation and inhibit apoptosis; however, whether it regulates immune evasion remains unknown. This study aimed to investigate the role of GMPS in CSCC and the molecular mechanism. In vitro experiments were performed to analyze cell proliferation and immune evasion, while in vivo experiments were conducted to assess the impact of GMPS on tumor growth and immune evasion. The results showed that GMPS expression was increased in CC tissues and cells. Knockdown of GMPS suppressed CSCC cell proliferation, enhanced the toxicity and activity of CD8 T cells, suppressed the apoptosis of CD8 T cells, and reduced the protein levels of PDL1. Moreover, silencing of GMPS inhibited xenograft tumor growth and suppressed immune evasion in immune-competent mice. Additionally, GMPS interacted with USP7 and positively regulated USP7 expression, and overexpression of USP7 abrogated the inhibition of cell proliferation and immune evasion mediated by GMPS knockdown. We also found that silencing of USP7 inhibited PDL1 protein stability via an increase in ubiquitination levels. In conclusion, GMPS accelerates CSCC progression by promoting cell proliferation and immune evasion. Mechanistically, GMPS interacts with USP7, which promotes the deubiquitination of PDL1. These findings provide new ideas for the immune escape mechanism of CSCC and indicate that GMPS is a promising target for immunotherapy. - Source: PubMed
Publication date: 2026/09/07
Zhang YuanyuanLi WenyunZhuo QianAbuduwufu ShaliyaZhang Jingjing - Advanced bladder cancer (BLCA), a malignancy with high recurrence, carries a dismal prognosis, demanding the identification of novel therapeutic targets. In this study, we aim to investigate a critical molecular mechanism driving BLCA progression. By integrating published sequencing datasets, we identified that POC1A is overexpressed in BLCA tissues, a factor positively correlated with advanced stage, high grade, disease progression, and inversely correlated with overall survival. In vitro and in vivo analyses indicate that POC1A knockdown inhibits BLCA cell proliferation, metastasis, and stemness. Mechanistically, POC1A functions as a scaffold protein, forming a complex with USP7 and BMI1. This enhances the USP7-BMI1 interaction, reduces BMI1 ubiquitination in a USP7-dependent manner, and consequently stabilizes the BMI1 protein. The functional significance of this pathway was confirmed as overexpression of either BMI1 or USP7 rescued the inhibitory phenotypes induced by POC1A knockdown. Furthermore, pharmacological targeting of BMI1 with Unesbulin suppressed BLCA growth in cell-line and patient-derived xenograft models, supporting the therapeutic tractability of the POC1A-BMI1 axis. Taken together, these findings reveal that POC1A facilitates the USP7-mediated deubiquitination and stabilization of BMI1, establishing the POC1A-USP7-BMI1 complex as a compelling therapeutic target in BLCA. - Source: PubMed
Publication date: 2026/08/31
Wei HouyiBai RenranLiu JianminLyu LeiYuan JingdongXiang WanQian KaiyuChen FangjinJu LingaoZhang YiXiao YuWang Gang - Spinal cord injury (SCI) is a severe neurological disorder with limited therapeutic options. 6-gingerol, a major bioactive component of ginger, possesses anti-inflammatory and neuroprotective activities; however, its role in SCI remains incompletely understood. This study investigated the effects and underlying mechanisms of 6-gingerol in SCI-induced microglial pyroptosis. A rat SCI model was established and treated with 6-gingerol. Neurological function, histopathological changes, microglial activation, and pyroptosis were evaluated. An LPS/ATP-induced BV2 microglial pyroptosis model was used for in vitro mechanistic studies. Cell viability, LDH, pyroptosis-related proteins, and inflammatory cytokines were analyzed. The expression of EZH2, USP7, and FOXO3 was determined by qRT-PCR and Western blot. Chromatin immunoprecipitation was performed to evaluate EZH2 and H3K27me3 mediated regulation of the USP7 promoter, while co-immunoprecipitation and ubiquitination assays were used to examine the interaction between USP7 and FOXO3. 6-gingerol significantly improved locomotor recovery, attenuated spinal cord tissue damage, and reduced microglial pyroptosis and inflammatory response after SCI. Mechanistically, 6-gingerol suppressed EZH2 expression and reduced H3K27me3 enrichment at the USP7 promoter, thereby restoring USP7 expression. Increased USP7 enhanced FOXO3 deubiquitination and stabilization, leading to suppression of pyroptotic signaling. Furthermore, EZH2 overexpression, USP7 inhibition, or FOXO3 knockdown partially abolished the anti-pyroptotic effects of 6-gingerol in vitro, and EZH2 overexpression attenuated the neuroprotective effects of 6-gingerol in SCI rats. In conclusion, 6-gingerol treatment alleviates SCI-induced neuroinflammation and microglial pyroptosis through the EZH2/USP7/FOXO3 axis, highlighting a potential therapeutic strategy for SCI. - Source: PubMed
Publication date: 2026/08/31
Li JunjieHu JinfengLiang ShuhanLuo JinxinRao Yaojian - The pathology of intervertebral disc degeneration (IDD) is characterized by metabolic dysregulation within nucleus pulposus (NP) cells. TRIM25 has been implicated in diverse tumors and pathological processes, yet its precise role in mediating mitochondrial function and metabolic alterations during IDD progression remains unclear. - Source: PubMed
Liu XiaomingZhang WenyuFeng HangLai LinyingCao ChenYang GuangGao YanzhengWang BijunWang HuiYu BinYu Zhenghong - Dauriporphine is a monomer extracted from Menispermum dauricum DC, and it exhibits anti-cancer effect in non-small cell lung cancer (NSCLC). The regulatory mechanism of dauriporphine remains incompletely understood, and this study focused on its molecular targets in NSCLC progression. Cell viability, proliferation, apoptosis, invasion, migration, and stemness were evaluated using cell counting kit-8, ethynyl-2'-deoxyuridine assay, flow cytometry, transwell assay, scratch assay, and sphere formation assay, respectively. Bioinformatics analysis and weighted gene co-expression network analysis (WGCNA) were performed to identify targets of dauriporphine in NSCLC. The mRNA and protein expression was quantified using qPCR and Western blot. Co-immunoprecipitation was used to analyze protein interaction and ubiquitination regulation between ubiquitin-specific protease 7 (USP7) and calcium/calmodulin-dependent serine protein kinase (CASK). The role of dauriporphine in vivo was explored using xenograft tumor model. Dauriporphine restrained proliferation, invasion, migration, and stemness of NSCLC cells (p < 0.05). Bioinformatics analysis and WGCNA identified CASK as a core target of dauriporphine in NSCLC. CASK was highly up-regulated in NSCLC samples and cells (p < 0.05). Anti-cancer effects of dauriporphine on NSCLC cells were associated with reduced CASK expression (p < 0.05). USP7 stabilized CASK protein by inducing deubiquitination (p < 0.05). Silencing USP7 restrained NSCLC cell proliferation, metastasis, and stemness by inhibiting CASK (p < 0.05). Dauriporphine interacted with USP7, and then USP7 overexpression reversed the inhibition of dauriporphine in NSCLC cell malignant behaviors (p < 0.05). Dauriporphine reduced tumor growth in vivo and down-regulated USP7 and CASK expression (p < 0.05). This study suggested that dauriporphine blocked the key malignant phenotypes of NSCLC cells via inhibiting USP7-mediated deubiquitination of CASK, thereby promoting its proteasomal degradation. The study elucidates a molecular mechanism underlying anti-tumor role of dauriporphine and providing potential targets for dauriporphine treatment. - Source: PubMed
Hou PengxiaoWu Qian