TLR2 and leprosy: According to previous results and hypothesis, in this present study, higher TLR2 expression in the reactional group, mostly in T1R, may be associated to TLR2/2 homodimer formation and association of TLR2/6 inducing a Th2 profile, while the TRL2/1 heterodimers may be occurring in reaction-free leprosy patients [28, 41, 48, 49].