1. Academic Validation
  2. DNMT3a-dermatopontin axis suppresses breast cancer malignancy via inactivating YAP

DNMT3a-dermatopontin axis suppresses breast cancer malignancy via inactivating YAP

  • Cell Death Dis. 2023 Feb 11;14(2):106. doi: 10.1038/s41419-023-05657-8.
Danrong Ye # 1 Yuying Wang # 1 Xiaochong Deng 2 Xiqian Zhou 1 Diya Liu 1 Baian Zhou 1 Wenfang Zheng 1 Xuehui Wang 1 Lin Fang 3
Affiliations

Affiliations

  • 1 Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
  • 2 Department of Breast Surgery, Guizhou Provincial People's Hospital, Guiyang, 550002, China.
  • 3 Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China. fanglin2017@126.com.
  • # Contributed equally.
Abstract

Breast Cancer (BC) is the most common malignant tumor in women worldwide, and its recurrence and metastasis negatively affect patient prognosis. However, the mechanisms underlying its tumorigenesis and progression remain unclear. Recently, the influence of dermatopontin (DPT), which is an extracellular matrix protein, has been proposed in the development of Cancer. Here we found that DNMT3a-mediated DPT, promoter hypermethylation results in the downregulation of DPT expression in breast Cancer and its low expression correlated with poor prognosis. Notably, DPT directly interacted with YAP to promote YAP Ser127 phosphorylation, and restricted the translocation of endogenous YAP from the cytoplasm to the nucleus, thereby suppressing malignant phenotypes in BC cells. In addition, Ectopic YAP overexpression reversed the inhibitory effects of DPT on BC growth and metastasis. Our study showed the critical role of DPT in regulating BC progression, making it easier to explore the clinical potential of modulating DPT/YAP activity in BC targeted therapies.

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