m6A-dependent mature miR-151-5p accelerates the malignant process of HNSCC by targeting LYPD3

Author:

Huang Fei,Ren Yuan,Hua Yufei,Wang Ying,Li Ruomeng,Ji Ning,Zeng Xin,Bai Ding,Chen Qianming,Zhou Xikun,Wu Junjie,Li JingORCID

Abstract

AbstractmiRNA has emerged as a crucial regulator in various of pathological and physiological processes, yet its precise mechanism of action the detailed mechanism of their action in Head and neck squamous cell carcinoma (HNSCC) remains incompletely understood. This study sheds light on the role of mi-151-5p, revealing its significantly elevated expression in tumor cells, which notably enhances the invasion and migration of HNSCC cells. This effect is achieved through directly targeting LY6/PLAUR Domain Containing 3 (LYPD3) by miR-151-5p, involving complementary binding to the 3’-untranslated regions (3’-UTR) in the mRNA of LYPD3. Consequently, this interaction accelerates the metastasis of HNSCC. Notably, clinical observations indicate a correlation between high expression of miR-151-5p and low levels of LYPD3 in clinical settings are correlated with poor prognosis of HNSCC patients. Furthermore, our investigation demonstrates that glycosylation of LYPD3 modulates its subcellular localization and reinforces its role in suppressing HNSCC metastasis. Additionally, we uncover a potential regulatory mechanism involving the facilitation of miR-151-5p maturation and accumulation through N6-methyladenosine (m6A) modification. This process is orchestrated by methyltransferase-like 3 (METTL3) and mediated by a newly identified reader, heterogeneous nuclear ribonucleoprotein U (hnRNP U). These findings collectively underscore the significance of the METTL3/miR-151-5p/LYPD3 axis serves as a prominent driver in the malignant progression of HNSCC.

Funder

National Natural Science Foundation of China

Aeronautical Science Foundation of China

the CAMS Innovation Fund for Medical Sciences

the “Zero to One” Innovation Research Project of Sichuan University

he 1·3·5 project of excellent development of discipline of West China Hospital of Si-chuan University

Publisher

Springer Science and Business Media LLC

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