Journal: iScience
Article Title: Stratification of non-small cell lung adenocarcinoma patients with EGFR actionable mutations based on drug-resistant stem cell genes
doi: 10.1016/j.isci.2023.106584
Figure Lengend Snippet: Validation of R-index in mice model and patients (A and B) R-index changes in mice between treatment-naive and osimertinib or Erlotinib treatment in-vivo . SRT, surgically resected tumors; PDX, patient-derived xenografts. (C) Changes of R-index and prognosis of patients pro- and post EGFR-TKI treatment. (D) Correlation plot of R-index and PFS. (E) Correlation of R-index and prognosis of patients’ pro- and post EGFR-TKI treatment and the median R-index is used to divide high and low drug resistance groups. (F) Correlation plot of R-index and PFS.
Article Snippet: Because the cells in culture lacked in-vivo interactions, we applied R-index to investigate the response of mice to EGFR-TKIs treatment from xenograft data., Patient-derived xenograft (PDX) models were built by implanting small pieces (3–5 mm) of adenocarcinomas specimens from patients’ surgically resected tumors (SRT) with EGFR activating mutations (#7, #11) into the subcutaneous flank tissue of female SHO mice (Crlj: SHO-PrkdcscidHrhr, Charles River).
Techniques: Biomarker Discovery, In Vivo, Derivative Assay