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KAI1/CD82 gene and autotaxin-lysophosphatidic acid axis in gastrointestinal cancers
Shuo Wang1, Jiang Chen1, Xiao-Zhong Guo2
1Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China.
Abstract:
The KAI1/CD82 gene inhibits the metastasis of most tumors and is remarkably correlated with tumor invasion and prognosis. Cell metabolism dysregulation is an important cause of tumor occurrence, development, and metastasis. As one of the important characteristics of tumors, cell metabolism dysregulation is attracting increasing research attention. Phospholipids are an indispensable substance in the metabolism in various tumor cells. Phospholipid metabolites have become important cell signaling molecules. The pathological role of lysophosphatidic acid (LPA) in tumors was identified in the early 1990s. Currently, LPA inhibitors have entered clinical trials but are not yet used in clinical treatment. Autotaxin (ATX) has lysophospholipase D (lysoPLD) activity and can regulate LPA levels in vivo. The LPA receptor family and ATX/lysoPLD are abnormally expressed in various gastrointestinal tumors. According to our recent pre-experimental results, KAI1/CD82 might inhibit the migration and metastasis of cancer cells by regulating the ATX-LPA axis. However, no relevant research has been reported. Clarifying the mechanism of ATX-LPA in the inhibition of cancer metastasis by KAI1/CD82 will provide an important theoretical basis for targeted cancer therapy. In this paper, the molecular compositions of the KAI1/CD82 gene and the ATX-LPA axis, their physiological functions in tumors, and their roles in gastrointestinal cancers and target therapy are reviewed.
Insights
The KAI1/CD82 gene may suppress cancer metastasis by regulating the autotaxin (ATX)-lysophosphatidic acid (LPA) pathway. Understanding this mechanism offers potential for targeted gastrointestinal cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Tumorigenesis involves cell metabolism dysregulation, impacting cancer occurrence, development, and metastasis.
- KAI1/CD82 is a metastasis suppressor gene correlated with tumor invasion and prognosis.
- Lysophosphatidic acid (LPA) and its regulator, autotaxin (ATX), are implicated in tumor progression, particularly in gastrointestinal cancers.
Purpose of the Study:
- To review the molecular mechanisms of the KAI1/CD82 gene and the ATX-LPA axis in cancer.
- To explore their roles in gastrointestinal tumor invasion, metastasis, and prognosis.
- To investigate the potential of targeting the ATX-LPA axis for cancer therapy.
Main Methods:
- Literature review of KAI1/CD82 gene and ATX-LPA axis functions.
- Analysis of their roles in gastrointestinal cancer development and progression.
- Exploration of potential therapeutic strategies targeting this pathway.
Main Results:
- KAI1/CD82 is a key inhibitor of metastasis across various tumors.
- The ATX-LPA signaling pathway is frequently dysregulated in gastrointestinal tumors.
- Pre-experimental data suggest KAI1/CD82 regulates cancer cell migration via the ATX-LPA axis.
Conclusions:
- The KAI1/CD82 gene's role in inhibiting metastasis may involve modulation of the ATX-LPA axis.
- Further research into this mechanism could provide a basis for novel targeted cancer therapies.
- Understanding KAI1/CD82 and ATX-LPA interactions is crucial for advancing gastrointestinal cancer treatment.
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