Abstract | Background: Methods: Treatment-naïve OSCC primary tumors were collected for PDX models establishment. Comprehensive genomic analysis, including whole-exome sequencing and RNA-seq, was performed on case-matched tumors and PDXs. Regulatory genes/pathways were analyzed to clarify which molecular signatures affect tumor engraftment ability and the tumor growth rate in OSCC PDXs. Results: Perineural invasion was found as an important pathological feature related to engraftment ability. Tumor microenvironment with enriched hypoxia, PI3K-Akt, and epithelial-mesenchymal transition pathways and decreased inflammatory responses had high engraftment ability and tumor growth rates in OSCC PDXs. High matrix metalloproteinase-1 (MMP1) expression was found that have a great graft advantage in xenografts and is associated with pooled disease-free survival in cancer patients. Conclusion: This study provides a panel with detailed genomic characteristics of OSCC PDXs, enabling preclinical studies on personalized therapy options for oral cancer. MMP1 could serve as a biomarker for predicting successful xenografts in OSCC patients.
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Authors | Wei-Chen Yen, Ian Yi-Feng Chang, Kai-Ping Chang, Chun-Nan Ouyang, Chiao-Rou Liu, Ting-Lin Tsai, Yi-Cheng Zhang, Chun-I Wang, Ya-Hui Wang, Alice L Yu, Hsuan Liu, Chih-Ching Wu, Yu-Sun Chang, Jau-Song Yu, Chia-Yu Yang |
Journal | Frontiers in oncology
(Front Oncol)
Vol. 12
Pg. 792297
( 2022)
ISSN: 2234-943X [Print] Switzerland |
PMID | 35444950
(Publication Type: Journal Article)
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Copyright | Copyright © 2022 Yen, Chang, Chang, Ouyang, Liu, Tsai, Zhang, Wang, Wang, Yu, Liu, Wu, Chang, Yu and Yang. |