Article ; Online: Characterization of sphere cells derived from a patient-derived xenograft model of lung adenocarcinoma treated with ionizing radiation.
International journal of radiation biology
2020 Volume 96, Issue 11, Page(s) 1413–1422
Abstract: Purpose: Cancer stem cells (CSCs) are relatively resistant to radiation compared to their non-tumorigenic progeny. Ionizing radiation (IR) can expand the pool of CSCs that leads to more aggressive cancers, but the reason underlying CSC-induced cancer ... ...
Abstract | Purpose: Cancer stem cells (CSCs) are relatively resistant to radiation compared to their non-tumorigenic progeny. Ionizing radiation (IR) can expand the pool of CSCs that leads to more aggressive cancers, but the reason underlying CSC-induced cancer aggressiveness after radiation therapy remains unclear. To understand this, we investigated the phenotypic and molecular characteristics of sphere cells formed from IR-treated patient-derived xenograft (PDX) lung adenocarcinoma tumors. Materials and methods: After treatment with various modes of IR, we collected tumors from PDX mice and successfully obtained sphere cells. To compare tumorigenicity, we performed migration, invasion, and mouse transplantation assays with sphere cells from each group. To investigate the molecular features, we used a cDNA microarray and compared gene expression among groups. Results and conclusions: Tumorigenicity assays revealed that sphere cells from 2- or 5-Gy IR-treated tumors more aggressive than sphere cells from non-IR treated tumors. Microarray results showed that |
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MeSH term(s) | Adenocarcinoma of Lung/pathology ; Adenocarcinoma of Lung/radiotherapy ; Animals ; Biomarkers, Tumor/metabolism ; Cell Transformation, Neoplastic ; Humans ; Mice ; Spheroids, Cellular/metabolism ; Spheroids, Cellular/pathology ; Spheroids, Cellular/radiation effects |
Chemical Substances | Biomarkers, Tumor |
Language | English |
Publishing date | 2020-08-28 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 3065-x |
ISSN | 1362-3095 ; 0020-7616 ; 0955-3002 |
ISSN (online) | 1362-3095 |
ISSN | 0020-7616 ; 0955-3002 |
DOI | 10.1080/09553002.2020.1793019 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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