Cyclic phosphatidic acid induces G 0 /G 1 arrest, inhibits Akt phosphorylation, and downregulates cyclin D1 expression in colorectal cancer cells

Cellular & Molecular Biology Letters

Tamotsu Tsukahara³  Hisao Haniu¹  Yoshikazu Matsuda² 

[1] Institute for Biomedical Sciences, Shinshu University Interdisciplinary Cluster for Cutting Edge Research, Matsumoto, Nagano, Japan$$;Clinical Pharmacology Educational Center, Nihon Pharmaceutical University, Ina-machi, Saitama, Japan$$;Department of Hematology and Immunology, Kanazawa Medical University, Uchinada, Ishikawa, Japan$$

关键词: Cyclic phosphatidic acid;    Lysophosphatidic acid;    Alkylglycerophosphate;    Colon cancer cells;    Cell cycle analysis;    Cell proliferation;    Cyclin D1;    Akt phosphorylation;    siRNA;    Cancer treatment;   

DOI  :  10.2478/s11658-014-0224-2

学科分类：分子生物学，细胞生物学和基因

来源: Uniwersytet Wroclawski * Wydzial Biotechnologii / University of Wroclaw, Faculty of Biotechnology

【 摘 要 】

Lysophosphatidic acid (LPA) and its analogs are well-known mitogens for various cell types. Many reports have confirmed that several types of cancer cell produce LPA to promote survival, growth and tumorigenesis. This indicates that the interface between the LPA signaling pathway and the cell cycle signaling system is critical to the control of cancer cell proliferation. However, our previous study indicated that cyclic phosphatidic acid (cPA), which is structurally similar to LPA, inhibits the proliferation and migration of colon cancer cells. It has been reported that cPA shows several biological activities not shown by LPA. However, understanding of the detailed molecular and cellular mechanism underlying the regulation of the cell cycle by cPA is still in its infancy. In this study, we investigated the effect of cPA treatment on human DLD-1 colon cancer cells by analyzing cell cycle dynamics, gene expression, and AKT phosphorylation. Our findings indicate that cPA inhibits cell cycle progression in DLD-1 colon cancer cells via the downregulation of cyclin D1 and the inhibition of AKT phosphorylation.

【 授权许可】

Unknown