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논문 기본 정보

자료유형
학술저널
저자정보
Jang Eunji (Novomics Co. Ltd.) Shin Min-Kyue (Yonsei University) Kim Hyunki (Yonsei University) Lim Joo Yeon (Yonsei University) Lee Jae Eun (Yonsei University) Park Jungmin (Yonsei University) Kim Jungeun (Novomics Co. Ltd.) Kim Hyeseon (Novomics Co. Ltd.) Shin Youngmin (Yonsei University) Son Hye-Young (Yonsei University) Choi Yoon Young (Yonsei University) Hyung Woo Jin (Yonsei University) Noh Sung Hoon (Yonsei University) Suh Jin-Suck (Yonsei University) Sung Ji-Yong (Yonsei University) Huh Yong-Min (Yonsei University) Cheong Jae-Ho (Yonsei University)
저널정보
대한생화학·분자생물학회 Experimental and Molecular Medicine Experimental and Molecular Medicine 제55권
발행연도
2023.5
수록면
1 - 13 (13page)
DOI
10.1038/s12276-023-00989-z

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The mesenchymal cancer phenotype is known to be clinically related to treatment resistance and a poor prognosis. We identified gene signature-based molecular subtypes of gastric cancer (GC, n = 547) based on transcriptome data and validated their prognostic and predictive utility in multiple external cohorts. We subsequently examined their associations with tumor microenvironment (TME) features by employing cellular deconvolution methods and sequencing isolated GC populations. We further performed spatial transcriptomics analysis and immunohistochemistry, demonstrating the presence of GC cells in a partial epithelial-mesenchymal transition state. We performed network and pharmacogenomic database analyses to identify TGF-β signaling as a driver pathway and, thus, a therapeutic target. We further validated its expression in tumor cells in preclinical models and a single-cell dataset. Finally, we demonstrated that inhibition of TGF-β signaling negated mesenchymal/stem-like behavior and therapy resistance in GC cell lines and mouse xenograft models. In summary, we show that the mesenchymal GC phenotype could be driven by epithelial cancer cell-intrinsic TGF-β signaling and propose therapeutic strategies based on targeting the tumor-intrinsic mesenchymal reprogramming of medically intractable GC.

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