Effect of protein tyrosine phosphatase non-receptor type 12 (PTPN12) downregulation on the radiosensitivity of non-small cell lung cancer / 中国肿瘤临床
Chinese Journal of Clinical Oncology
;
(24): 285-290, 2016.
Artigo
em Chinês
| WPRIM
| ID: wpr-485599
ABSTRACT
Objective:
To identify the relationship between the expression of protein tyrosine phosphatase non-receptor type 12 (PTPN12) and radiotherapy effect in non-small cell lung cancer (NSCLC) tissues and to determine whether PTPN12 deficiency can sensi-tize lung cancer cells to irradiation.Methods:
From September 2013 to October 2014, 92 NSCLC patients undergoing radiotherapy with or without platinum-based combination chemotherapy were analyzed retrospectively. Before the treatment, PTPN12 expression was detected through immunohistochemistry. After the completion of radiotherapy, the patients' responses were assessed and radio-therapeutic efficacy analyzed. The human NSCLC cell line H1299 was infected with shPTPN12 knockdown, and colony survival assay was analyzed after irradiation. Chi-square test was used to examine the correlation between PTPN12 expression and clinicopathologi-cal characteristics. Univariate analyses and Logistic regression test were used to analyze the relationship between clinicopathological characteristics and radiotherapeutic response.Results:
Patients with low PTPN12 expression were more sensitive to radiotherapy than those with high PTPN12 expression (80.0%vs. 57.1%, P=0.018). Multivariate analysis showed that PTPN12 expression was the on-ly independent predictor of radiotherapeutic response in NSCLC. The H1299-shPTPN12-knockdown cells were sensitive to irradiation.Conclusions:
The results of the study indicated that downregulation of PTPN12 improved the radiosensitivity of NSCLC cells.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo prognóstico
Idioma:
Chinês
Revista:
Chinese Journal of Clinical Oncology
Ano de publicação:
2016
Tipo de documento:
Artigo
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