TLR2 and tuberculosis: Western blotting was used to identify ACAT-1, which participates in early cholesterol synthesis, PPAR-α, which is a fibrate receptor, TNF-α, which is a inflammatory cytokine, and MyD88, which is a promoter of signal transduction for TB and binds to the Toll like receptor 2 (TLR2) membrane protein (Figure 3).