NLRP3 and neoplasm: The number and size of pathological tumor nests in cross-section of the left lobes of lungs induced by LPS plus B(a)p in WT mice were increased than mice exposed to B(a)p alone, whereas deletion of NLRP3 attenuated the number and size of pathological tumor nests induced by B(a)p or B(a)p plus LPS compared with WT mice, respectively.