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Miyamoto S, Tanaka T, Hirosuna K, Nishie R, Ueda S, Hashida S, Terada S, Konishi H, Kogata Y, Taniguchi K, Komura K, Ohmichi M. Validation of a Patient-Derived Xenograft Model for Cervical Cancer Based on Genomic and Phenotypic Characterization. Cancers (Basel) 2022; 14:cancers14122969. [PMID: 35740635 PMCID: PMC9221029 DOI: 10.3390/cancers14122969] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary The rate of total tumor engraftment of patient-derived xenografts is 50% in cervical cancer. These cancers retain their histopathological characteristics. The gene mutations and expression patterns associated with carcinogenesis and infiltration and the expression levels of genes in extracellular vesicles released from the tumors are similar between patient-derived xenograft models and primary tumors. Patient-derived xenograft models of cervical cancer could be potentially useful tools for translational research. Abstract Patient-derived xenograft (PDX) models are useful tools for preclinical drug evaluation, biomarker identification, and personalized medicine strategies, and can be developed by the heterotopic or orthotopic grafting of surgically resected tumors into immunodeficient mice. We report the PDX models of cervical cancer and demonstrate the similarities among original and different generations of PDX tumors. Fresh tumor tissues collected from 22 patients with primary cervical cancer were engrafted subcutaneously into NOD.CB17-PrkdcSCID/J mice. Histological and immunohistochemical analyses were performed to compare primary and different generations of PDX tumors. DNA and RNA sequencing were performed to verify the similarity between the genetic profiles of primary and PDX tumors. Total RNA in extracellular vesicles (EVs) released from primary and PDX tumors was also quantified to evaluate gene expression. The total tumor engraftment rate was 50%. Histologically, no major differences were observed between the original and PDX tumors. Most of the gene mutations and expression patterns related to carcinogenesis and infiltration were similar between the primary tumor and xenograft. Most genes associated with carcinogenesis and infiltration showed similar expression levels in the primary tumor and xenograft EVs. Therefore, compared with primary tumors, PDX models could be potentially more useful for translational research.
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Affiliation(s)
- Shunsuke Miyamoto
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
- Translational Research Program, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (K.H.); (K.T.); (K.K.)
| | - Tomohito Tanaka
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
- Translational Research Program, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (K.H.); (K.T.); (K.K.)
- Correspondence: ; Tel.: +81-726-83-1221
| | - Kensuke Hirosuna
- Translational Research Program, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (K.H.); (K.T.); (K.K.)
| | - Ruri Nishie
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
| | - Shoko Ueda
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
| | - Sousuke Hashida
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
| | - Shinichi Terada
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
| | - Hiromi Konishi
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
| | - Yuhei Kogata
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
| | - Kohei Taniguchi
- Translational Research Program, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (K.H.); (K.T.); (K.K.)
| | - Kazumasa Komura
- Translational Research Program, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (K.H.); (K.T.); (K.K.)
| | - Masahide Ohmichi
- Department of Obstetrics and Gynecology, Educational Foundation of Osaka Medical and Pharmaceutical University, 2-7, Daigaku-machi, Takatsuki 569-8686, Osaka, Japan; (S.M.); (R.N.); (S.U.); (S.H.); (S.T.); (H.K.); (Y.K.); (M.O.)
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