Effect of EGCg on the expression of Bcl‑xL in A549 cells, as determined by RT‑PCR analysis. Representative image showing the Bcl‑xL and GAPDH mRNA expression levels in the absence or presence of 100 μM EGCg. EGCg, epigallocatechin‑3‑gallate; Bcl‑xL, B‑cell lymphoma‑extra large; RT‑PCR, reverse transcription polymerase chain reaction.