Role and potential clinical utility of ARID1A in gastrointestinal malignancy
Ruihua Wang1, Mei Chen1, Xiaojun Ye2
1Department of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, 518000, Guangdong Province, China.
Abstract:
ARID1A (AT-rich interactive domain 1A) is a newly discovered tumor suppressor gene, and its encoded product is an important component of the SWI/SNF chromatin remodeling complex. ARID1A plays an important role in cell proliferation, invasion and metastasis, apoptosis, cell cycle regulation, epithelial mesenchymal transition, and the regulation of other of biological behaviors. Recently, ARID1A mutations have been increasingly reported in esophageal adenocarcinoma, gastric cancer, colorectal cancer, hepatocellular carcinoma, cholangiocarcinoma, pancreatic cancer, and other malignant tumors of the digestive system. This article reviews the relationship between ARID1A mutation and the molecular mechanisms of carcinogenesis, including microsatellite instability and the PI3K/ATK signaling pathway, and relates these mechanisms to the prognostic assessment of digestive malignancy. Further, this review describes the potential for molecular pathologic epidemiology (MPE) to provide new insights into environment-tumor-host interactions.
Insights
Mutations in the ARID1A gene are linked to various digestive system cancers. Understanding these ARID1A alterations aids in assessing prognosis and exploring new research avenues.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- ARID1A (AT-rich interactive domain 1A) is a tumor suppressor gene.
- Its product is a key component of the SWI/SNF chromatin remodeling complex.
- ARID1A regulates critical cellular processes including proliferation, apoptosis, and cell cycle control.
Purpose of the Study:
- To review the association between ARID1A mutations and digestive system malignancies.
- To explore the molecular mechanisms underlying ARID1A-driven carcinogenesis.
- To discuss the prognostic implications of ARID1A alterations and the role of molecular pathologic epidemiology.
Main Methods:
- Literature review of studies on ARID1A mutations in digestive cancers.
- Analysis of molecular mechanisms such as microsatellite instability and PI3K/ATK signaling.
- Discussion of prognostic assessment and molecular pathologic epidemiology (MPE) approaches.
Main Results:
- ARID1A mutations are increasingly found in esophageal adenocarcinoma, gastric, colorectal, hepatocellular, cholangiocarcinoma, and pancreatic cancers.
- ARID1A alterations are implicated in microsatellite instability and PI3K/ATK pathway dysregulation.
- These mutations correlate with prognostic outcomes in digestive malignancies.
Conclusions:
- ARID1A mutations are significant in the development and progression of digestive system cancers.
- Understanding ARID1A's role provides insights into carcinogenesis and potential therapeutic targets.
- Molecular pathologic epidemiology offers a framework to study environmental and host factors in ARID1A-associated tumors.
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