Rapid diagnosis of cisplatin-sensitive and resistant cervical squamous cell carcinomas by reverse transcription...

Cisplatin is a widely used platinum anticancer drug in cervical cancer chemotherapy; however, its use is limited by the development of drug resistance, which is often rationalized via effects on cellular uptake. Human copper transporter 1 (hCTR1) was proven as crucial regulator for cellular platinum uptake in cancer cells and improving effect of cisplatin treatment. Thus, methods to detect expression of hCTR1 in patients in biopsy specimens with certain rapidity and accuracy are essential to evaluate platinum drug sensitivity and perform further individualized treatment. In this study, a total of 46 normal cervical and primary cervical squamous cell carcinoma tissues were collected and tested by reverse transcription loop-mediated isothermal amplification (RT-LAMP) analysis targeted hCTR1 mRNA. Sensitivity and specificity of RT-LAMP results were calculated and compared to immunohistochemical (IHC) examination. Overexpression of hCTR1 RNA was detected in 12 samples using RT-LAMP within 45 minutes reaction, which indicated positivity with cisplatin resistance. This new technique is suggested to be alternative for rapid diagnosis of cisplatin sensitive patients whose hCTR1 is prevalent.