Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UNIPROT:P62988 (Ubiquitin)
 4,326 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Salivary Adenoid Cystic Carcinoma (SACC) is characterized by a high rate of local recurrence and infiltration, strong invasion to peripheral nerves or late distant metastasis. Our aim was to investigate the expression of Ubiquitin-specific protease 22 (USP22) in SACC patients and its possible relationship to the outcome of the disease. A total of 135 SACC tissues and adjacent non-cancerous tissues which were diagnosed between 2002 and 2007 were enrolled in this study. Immunohistochemistry was used to compare the expression pattern of USP22 in SACC and adjacent non-cancerous groups, and the prognostic significance was assessed by Kaplan-Meier analysis and Cox proportional hazards regression in SACC patients. The rate of high expression of USP22 was significantly higher in SACC group than that in adjacent non-cancerous group. High expression of USP22 was significantly correlated with histological subtype, lymph node metastasis, grade, Ki-67 and SOX2 expression. Furthermore, USP22 acts as an oncogene by regulation the BMI-1 pathway and c-Myc pathway. SACC patients with high USP22 expression showed the poorer overall survival (OS) and disease-free survival (DFS) than those patients with low USP22 expression. In multivariate analysis, only lymph node metastasis and USP22 expression were the independent prognostic factors for OS and DFS in SACC. Our study provides evidence that USP22 expression is an independent prognostic factor for SACC patients.
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PMID:Ubiquitin-specific peptidase 22, a histone deubiquitinating enzyme, is a novel poor prognostic factor for salivary adenoid cystic carcinoma. 2446 36

Ubiquitin-specific protease 22 (USP22) can regulate the cell cycle and apoptosis in many cancer cell types, while it is still unclear whether the deubiquitinating enzyme activity of USP22 is necessary for these processes. As little is known about the impact of USP22 on the growth of HeLa cell, we observed whether USP22 can effectively regulate HeLa cell growth as well as the necessity of deubiquitinating enzyme activity for these processes in HeLa cell. In this study, we demonstrate that USP22 can regulate cell cycle but not apoptosis in HeLa cell. The deubiquitinating enzyme activity of USP22 is necessary for this process as confirmed by an activity-deleted mutant (C185S) and an activity-decreased mutant (Y513C). In addition, the deubiquitinating enzyme activity of USP22 is related to the levels of BMI-1, c-Myc, cyclin D2 and p53. Our findings indicate that the deubiquitinating enzyme activity of USP22 is necessary for regulating HeLa cell growth, and it promotes cell proliferation via the c-Myc/cyclin D2, BMI-1 and p53 pathways in HeLa cell.
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PMID:The deubiquitinating enzyme activity of USP22 is necessary for regulating HeLa cell growth. 2614 14

Ubiquitin-specific protease 12 (USP12) plays a significant role in tumor cell apoptosis and cell cycle progression. However, the regulatory mechanism of USP12 in human cervical carcinoma HeLa cell growth is unknown. In this study, we showed that knockdown of USP12 effectively induced cell cycle arrest in HeLa cells and decreased BMI-1, c-Myc and cyclin D2 transcription levels. By contrast, unlike the inactive C48S mutant, over-expression of USP12 and the deubiquitinase activity enhanced L153S and R237C mutants, had the opposite effects. Interestingly, compared to wild-type, the L153S mutant resulted in a more effective cell cycle-promotion and increased BMI-1, c-Myc and cyclin D2 transcript levels. In addition to BMI-1, USP12 R237C exhibited a functional resemblance to the wild-type by involving c-Myc and cyclin D2. The effect of USP12 on HeLa cell apoptosis was not observed in our study. These results suggest that USP12 may be responsible for HeLa cell growth by affecting cell cycle progression.
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PMID:USP12 regulates cell cycle progression by involving c-Myc, cyclin D2 and BMI-1. 2668 Jan 2