Midbody remnant regulates the formation of primary cilia and their roles in tumor growth

• Published in: Zhejiang da xue xue bao. Journal of Zhejiang University. Medical sciences. Yi xue ban Vol. 53; no. 2; pp. 261 - 268
• Main Authors: LI, Zhengyang, ZHAO, Huiming, LI, Subing, JIAO, Zuoyi
• Format: Journal Article
• Language: English
• Published: China 25.04.2024
• Subjects: Animals; Autophagy - physiology; Carcinogenesis; Centrioles - metabolism; Centrioles - physiology; Cilia - metabolism; Cilia - physiology; Humans; Mitosis; Neoplasms - metabolism; Neoplasms - pathology; Organelles - metabolism; Signal Transduction; Primary cilium; Tumor; Cell mitosis; Review; Midbody remnant
• ISSN: 1008-9292
• DOI: 10.3724/zdxbyxb-2023-0461

Recent studies have shown that the formation of the primary cilium is associated with a specific cellular organelle known as the midbody remnant (MBR), which is a point-like organelle formed by shedding of the midbody at the end of mitosis. MBRs move along the cell surface close to the center body and regulate it to form primary cilia at the top of the centriole. Primary cilia can act as an organelle to inhibit tumorigenesis, and it is lost in a variety of tumors. Studies have shown that the accumulation of MBRs in tumor cells affects ciliogenesis; in addition, both MBRs and primary cilia are degraded in tumor cells through the autophagy pathway, and MBRs can also transfer tumor signaling pathway factors to primary cilia affecting tumorigenesis. In this article, the basic structure and the formation process of MBR and primary cilia are reviewed and the mechanism of MBRs regulating ciliogenesis is elaborated. The significance of MBR-mediated ciliogenesis in tumorigenesis and its potential as a target for cancer treatment are discussed.