In developing adenoviral mda-7 / IL-24 (Ad-mda-7 / IL-24) therapy for lung cancer , we have anticipated this potential clinical problem by attempting to identify the molecular mechanisms of Ad-mda7 / IL-24 resistance in several Ad-mda7 / IL-24-resistant lung cancer cell lines that we have developed.
Analysis of the lung cancer cell lines identified the bcl-2 pathway to be associated with cisplatin resistance and the AKT pathway enriched in cisplatin - and docetaxel-resistant cell lines.
Among nine cell lines of lung cancer tested , small-cell lung cancer lines , which showed higher sensitivity to cisplatin and etoposide , were unexpectedly found to contain significantly higher poly (ADP-ribose) polymerase activity than five non-small-cell lung cancer cell lines.
Crithidia fasciculata poly (ADP-ribose) polymerase (PARP) has been isolated and partially purified.