Objective : Telomeric repeat amplification protocol (TRAP) is now a conventional assay for detecting telomerase activity. However, this method presents problems related to tedious quantifying, radioisotopic handing a...Objective : Telomeric repeat amplification protocol (TRAP) is now a conventional assay for detecting telomerase activity. However, this method presents problems related to tedious quantifying, radioisotopic handing and the limited number of samples to be examined. In order to alleviate these inconveniences, we have developed and evaluated a novel telomerase TRAP ELISA assay detecting human telomerase activity. Method: Telomerase TRAP ELISA assay is a system based on the combination of PCR ELISA with TRAP. Comparing with the conventional TRAP assay, we detected telomerase activity in 293 cell and negative controls (RNase pretreated or heat treated). Result : Telomerase activity in 293 cell is positive. The OD value of serial extracts from 10、10 2、10 3 and 10 4 cells assayed by telomerase PCR ELISA depended on the number of 293 cells in assay. RNase pretreated or heat treated control was negative. Telomerase TRAP ELISA detection yields results within one day and is handled without radioisotopes. Conclusion : Telomerase TRAP ELISA assay is non radioisotopic, fast and quantitative method for detecting human telomerase activity.展开更多
文摘Objective : Telomeric repeat amplification protocol (TRAP) is now a conventional assay for detecting telomerase activity. However, this method presents problems related to tedious quantifying, radioisotopic handing and the limited number of samples to be examined. In order to alleviate these inconveniences, we have developed and evaluated a novel telomerase TRAP ELISA assay detecting human telomerase activity. Method: Telomerase TRAP ELISA assay is a system based on the combination of PCR ELISA with TRAP. Comparing with the conventional TRAP assay, we detected telomerase activity in 293 cell and negative controls (RNase pretreated or heat treated). Result : Telomerase activity in 293 cell is positive. The OD value of serial extracts from 10、10 2、10 3 and 10 4 cells assayed by telomerase PCR ELISA depended on the number of 293 cells in assay. RNase pretreated or heat treated control was negative. Telomerase TRAP ELISA detection yields results within one day and is handled without radioisotopes. Conclusion : Telomerase TRAP ELISA assay is non radioisotopic, fast and quantitative method for detecting human telomerase activity.