Macrophages were infected with Mtb for the indicated times. Cells were lysed with lysis buffer consisting of 10 mM Tris–HCl, 1 mM EDTA, 140 mM NaCl, 0.1% DOC, 0.1% SDS, and Triton X-100 containing complete protease inhibitor cocktail (Calbiochem, San Diego, CA, USA). Western blotting was performed as previously described (27 (link)). Anti-phospho-GSK3β, anti-IκBα, anti-cathepsin D, and anti-β-actin were purchased from Santa Cruz Biotechnology (Santa Cruz, CA, USA). Anti-phospho-PI3K, anti-PI3K, anti-phospho-p38, anti-p38, anti-phospho-ERK1/2, anti-phospho-MEK1/2, anti-phospho-JNK1/2, anti-phospho-IκBα, and anti-IRAK-M were purchased from Cell Signaling Technology.
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