Reduced MAGI3 level by HPV18E6 contributes to Wnt/β-catenin signaling activation and cervical cancer progression.

Reduced MAGI3 level by HPV18E6 contributes to Wnt/β-catenin signaling activation and cervical cancer progression.
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HPV18E6 降低 MAGI3 水平有助于 Wnt/β-连环蛋白信号激活和宫颈癌进展

DOI:
10.1002/2211-5463.13298
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发表时间:
2021-11
期刊:
影响因子:
2.6
通讯作者:
He J
He J
中科院分区:
生物学4区
文献类型:
--
作者:
Yang Z;Liu H;Song R;Lu W;Wang H;Gu S;Cao X;Chen Y;Liang J;Qin Q;Yang X;Feng D;He J

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人乳头瘤病毒18型(HPV18)在侵袭性宫颈癌(ICC)的发展中具有很高的致癌性。然而,潜在的机制仍然难以捉摸。HPV18的致癌特性需要其E6癌蛋白(HPV18 E6)的PDZ‐结合基序来降解其靶蛋白PSD95/Dlg/ZO‐1 (PDZ)。在这项研究中,我们证明了PDZ蛋白膜相关鸟苷酸激酶,WW和PDZ结构域3 (MAGI3)通过降低β‐catenin水平抑制Wnt/β‐catenin途径,并随后抑制宫颈癌(CC)细胞的迁移和侵袭。通过降低MAGI3蛋白水平,HPV18 E6通过激活Wnt/β‐catenin信号通路促进CC细胞迁移和侵袭。此外,在CC中,HPV18而不是HPV16优先与MAGI3的下调和Wnt/β - catenin通路的激活相关。这些发现揭示了HPV18在CC进展中具有高致癌潜力的机制。HPV18 E6通过降低MAGI3蛋白水平,通过激活Wnt/β‐catenin信号通路,促进宫颈癌细胞迁移和侵袭。此外,在宫颈癌中,HPV18而不是HPV16优先与MAGI3的下调和Wnt/β‐catenin通路的激活相关。这些发现揭示了HPV18在宫颈癌进展中具有高致癌性的机制。
Human papillomavirus type 18 (HPV18) has high carcinogenic power in invasive cervical cancer (ICC) development. However, the underlying mechanism remains elusive. The carcinogenic properties of HPV18 require the PDZ‐binding motif of its E6 oncoprotein (HPV18 E6) to degrade its target PSD95/Dlg/ZO‐1 (PDZ) proteins. In this study, we demonstrated that the PDZ protein membrane‐associated guanylate kinase, WW and PDZ domain containing 3 (MAGI3) inhibited the Wnt/β‐catenin pathway, and subsequently cervical cancer (CC) cell migration and invasion, via decreasing β‐catenin levels. By reducing MAGI3 protein levels, HPV18 E6 promoted CC cell migration and invasion through activation of Wnt/β‐catenin signaling. Furthermore, HPV18 rather than HPV16 was preferentially associated with the downregulation of MAGI3 and activation of the Wnt/β‐catenin pathway in CC. These findings shed light on the mechanism that gives HPV18 its high carcinogenic potential in CC progression. By reducing the level of MAGI3 protein, HPV18 E6 promotes cervical cancer cell migration and invasion through activation of Wnt/β‐catenin signaling. Furthermore, HPV18 rather than HPV16 is preferentially associated with downregulation of MAGI3 and activation of the Wnt/β‐catenin pathway in cervical cancer. These findings shed light on the mechanism that gives HPV18 its high carcinogenic potential in cervical cancer progression.
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