RT Journal Article SR Electronic T1 Telomere elongation and Telomerase activity in Normal and Cancer cell lines: HEK-293, HeLa and A549 JF bioRxiv FD Cold Spring Harbor Laboratory SP 100446 DO 10.1101/100446 A1 Ankur Patel A1 Grishma Joshi A1 Yunke Fu A1 Sherwin Shaju A1 Angelo Messina YR 2017 UL http://biorxiv.org/content/early/2017/01/15/100446.abstract AB Telomerase, an eukaryotic ribonucleoprotein (RNP) complex, consists of an essential RNA template and a reverse transcriptase termed as human telomerase reverse transcriptase (hTERT). By using this reverse transcriptase enzyme, telomerase RNP maintains its telomeric length in all cancer cells and in few stem cells. As cells age, telomerase level decreases and telomere get shorten, leading to senescence. Presence of telomerase helps delay the senescence due to active production of telomere, leading to cell turning malignant and eventually cancerous. In this experiment, we would investigate the telomerase activity tested using q PCR and telomerase level using western blot in three different cell lines, HEK-293, HeLa and A549.Hypothesis Where HEK-293 cells have longer telomeres and higher telomerase activity, HeLa and A549 cell lines will have varied length of telomere but higher telomerase activity.