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자료유형
학술저널
저자정보
Jeon Youngsic (Yonsei University) Yoo Jeong Eun (Yonsei University) Rhee Hyungjin (Yonsei University) Kim Young-Joo (Korea Institute of Science and Technology) Il Kim Gwang (Yonsei University) Chung Taek (Yonsei University) Yoon Sarah (Ajou University) Shin Boram (Ajou University) Woo Hyun Goo (Ajou University) Park Young Nyun (Yonsei University)
저널정보
대한생화학·분자생물학회 Experimental and Molecular Medicine Experimental and Molecular Medicine 제53권
발행연도
2021.6
수록면
1 - 13 (13page)
DOI
10.1038/s12276-021-00639-2

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The expression of estrogen receptor alpha (ERα, encoded by ESR1 ) has been shown to be associated with the prognostic outcomes of patients in various cancers; however, its prognostic and mechanistic significance in hepatocellular carcinoma (HCC) remain unclear. Here, we evaluated the expression of ERα and its association with clinicopathological features in 339 HCC patients. ERα was expressed in 9.4% (32/339) of HCCs and was related to better overall survival (OS; hazard ratio [HR]?=?0.11, p =?0.009, 95% C.I.?=?0.016?0.82) and disease-free survival (DFS, HR?=?0.4, p =?0.013, 95% C.I.?=?0.18?0.85). ERα expression was also associated with features related to more favorable prognosis, such as older age, lower serum alpha-fetoprotein level, and less microvascular invasion ( p <?0.05). In addition, to obtain mechanistic insights into the role of ERα in HCC progression, we performed integrative transcriptome data analyses, which revealed that yes-associated protein (YAP) pathway was significantly suppressed in ESR1 -expressing HCCs. By performing cell culture experiments, we validated that ERα expression enhanced YAP phosphorylation, attenuating its nuclear translocation, which in turn suppressed the downstream signaling pathways and cancer cell growth. In conclusion, we suggest that ERα expression is an indicator of more favorable prognosis in HCC and that this effect is mediated by inactivation of YAP signaling. Our results provide new clinical and pathobiological insights into ERα and YAP signaling in HCC.

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