Effect of gemcitabine on the expression of apoptosis-related genes in human pancreatic cancer cells

Autor: Norio Sawabu, Toshinari Minamoto, Pei-Hong Jiang, Yoshiharu Motoo
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: World Journal of Gastroenterology. 12(10):1597-1602
ISSN: 1007-9327
Popis: 金沢大学がん研究所
Aim: To investigate the expression of genes involved in the gemcitabine-induced cytotoxicity in human pancreatic cancer cells. Methods: A human pancreatic cancer cell line, PANC-1, was cultured. 1 × 104 PANC-1 cells were plated in 96-well microtiter plates. After being incubated for 24 h, gemcitabine was added to the medium at concentrations ranging 2.5 -1 000 mg/L. The AlamarBlue dye method was used for cell growth analysis. DNA fragmentation was quantitatively assayed using a DNA fragmentation enzyme-linked immunosorbent assay (ELISA) kit. PAP and TP53INP1 mRNA expression was determined using the reverse transcription-polymerase chain reaction with semi-quantitative analysis. The expression of GSK-3β and phospho-GSK-3β proteins was examined with Western blot analysis. Results: The IC50 for the drug after a 48-h exposure to gemcitabine was 16 mg/L. The growth of PANC-1 cells was inhibited by gemcitabine in a concentration-dependent manner (P< 0.0001) and the cell growth was also inhibited throughout the time course (P
Databáze: OpenAIRE