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Published on: August 4, 2019
Tumor suppressor NGX6 inhibits the growth and metastasis of multiple cancers
Shiwei He1,2, Yancheng Zhong1,2, Cijun Shuai3
1Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China.
Abstract:
Nasopharyngeal carcinoma-associated gene 6 (NGX6) is a membrane protein primarily located in the nuclear membrane and cell membrane. Several groups reported that NGX6 gene was down-regulated in nasopharyngeal carcinoma (NPC), gastric cancer, lung cancer, liver cancer, and colorectal cancer and even less in the carcinomas with metastasis. Current studies have demonstrated that NGX6 possesses various biological functions, such as regulating protein expression of related genes, involving cell signal transduction pathways, negatively controlling cell cycle progression, inhibiting angiogenesis, and increasing the sensitivity of patients to anti-cancer drugs. Some factors regulating the expression level of NGX6 gene also have been studied. The methylation of promoter of NGX6 and histone H3K9 negatively regulates its expression, similar to the function of transcription factor special protein-1 (Sp1). However, the regulatory factor early growth response gene 1 (Egr-1) is provided with positive regulation function. This review will summarize the progress of those studies on NGX6 and elucidate the potential application of NGX6 for some malignant diseases.
Insights
Nasopharyngeal carcinoma-associated gene 6 (NGX6) is frequently down-regulated in various cancers. This review highlights NGX6
Area of Science:
- Molecular Biology
- Oncology
Background:
- Nasopharyngeal carcinoma-associated gene 6 (NGX6) is a membrane protein implicated in several cancers.
- NGX6 expression is notably reduced in nasopharyngeal carcinoma (NPC), gastric, lung, liver, and colorectal cancers, particularly in metastatic cases.
Purpose of the Study:
- To review the biological functions of NGX6.
- To summarize regulatory factors influencing NGX6 expression.
- To elucidate the potential of NGX6 as a therapeutic target for malignant diseases.
Main Methods:
- Literature review of studies on NGX6.
- Analysis of gene expression data in various cancers.
- Examination of molecular mechanisms regulating NGX6.
Main Results:
- NGX6 exhibits diverse functions including regulating gene expression, cell signaling, cell cycle, and angiogenesis.
- NGX6 expression is negatively regulated by promoter methylation, histone H3K9, and Sp1.
- Egr-1 positively regulates NGX6 expression.
Conclusions:
- NGX6 plays a significant role in tumor suppression.
- Understanding NGX6 regulation is crucial for developing novel cancer therapies.
- NGX6 holds potential as a biomarker and therapeutic target for various cancers.
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