Accéder au contenu
Merck

KIF18B promotes tumor progression in osteosarcoma by activating β-catenin.

Cancer biology & medicine (2020-06-27)
Tian Gao, Ling Yu, Zhiwei Fang, Jiayong Liu, Chujie Bai, Shu Li, Ruifeng Xue, Lu Zhang, Zhichao Tan, Zhengfu Fan
RÉSUMÉ

Objective: Osteosarcoma is a common primary highly malignant bone tumor. Kinesin family member 18B (KIF18B) has been identified as a potential oncogene involved in the development and metastasis of several cancer types. While KIF18B overexpression in osteosarcoma tissue is clearly detected, its specific function in the disease process remains to be established. Methods: KIF18B expression was assessed in osteosarcoma tissues and cells. We additionally evaluated the effects of KIF18B on proliferation, migration, and invasion of osteosarcoma cells, both in vitro and in vivo. Results: Our results showed overexpression of KIF18B in osteosarcoma tissues and cells. Knockdown of KIF18B induced G1/S phase arrest and significantly inhibited proliferation, migration, and invasion of osteosarcoma cells, both in vitro and in vivo. KIF18B regulated β-catenin expression at the transcriptional level by controlling nuclear aggregation of ATF2 and at the post-transcriptional level by interacting with the adenomatous polyposis coli (APC) tumor suppressor gene in osteosarcoma cells. Conclusions: KIF18B plays a carcinogenic role in osteosarcoma by regulating expression of β-catenin transcriptionally via decreasing nuclear aggregation of ATF2 or post-transcriptionally through interactions with APC. Our collective findings support the potential utility of KIF18B as a novel prognostic biomarker for osteosarcoma.

MATÉRIAUX
Référence du produit
Marque
Description du produit

Sigma-Aldrich
MISSION® esiRNA, targeting human RUNX1
Sigma-Aldrich
MISSION® esiRNA, targeting human CUX1