title: [Radiosensitivity changes of nasopharyngeal carcinoma cells with different levels of differentiation after treatment with chemotherapeutic agents].
abstract: OBJECTIVE
  To examine the changes of radiosensitivity of CNE1, a well differentiated squamous cell line of nasopharyngeal carcinoma (NPC), and CNE2, a poorly differentiated squamous cell line of NPC, after treatment with chemotherapeutic agents.
  
  
  METHODS
  CNE1 and CNE2 cells with and without treated by adriamycin (ADM) were irradiated by X-ray and the radiosensitivity changes of ADM-treated cells were analyzed according to the cell survival curve generated by colony formation assay.
  
  
  CONCLUSIONS
  Radiosensitivity of CNE1 cells increased after ADM treatment, but that of CNE2 cells decreased, suggesting that different treatment regimens should be planned for advanced squamous cell NPC of different pathological types.
authors.affiliation: Oncology Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China. bujunguo888@yahoo.com.cn
authors.forename: Jun-guo
authors.initials: JG
authors.lastname: Bu
authors.forename: Ji-ren
authors.initials: JR
authors.lastname: Zhang
authors.forename: Ming-xing
authors.initials: MX
authors.lastname: Xiao
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D002454:Cell Differentiation / Q000187:drug effects* / Q000528:radiation effects*; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004317:Doxorubicin / Q000494:pharmacology*; D006801:Humans; D009303:Nasopharyngeal Neoplasms / Q000473:pathology; D014965:X-Rays
chemical_list: D000970:Antineoplastic Agents; D004317:Doxorubicin