Moreover, expression of Caspase-1 which represented an effector protein of NLRP3 inflammatory corpuscles was also determined, as depicted in Figures 2(d) and 2(e), MMC did not affect the protein level of Caspase-1 but markedly decreased the expression of Cleaved Caspase-1 in pterygium. Here, CASP1 is linked to pterygium.