lysosomes

Bafilomycin A1 belongs to the macrolide class of antibiotics and is a V-ATPase inhibitor (IC50=0.44 nM) that is specific and reversible. Bafilomycin A1 is an inhibitor of the late phase of autophagy, blocking the fusion of autophagosomes with lysosomes. Bafilomycin A1 also induces apoptosis.

Leupeptin hemisulfate is a protease inhibitor with cell membrane-permeable, reversible, competitive, and oral activities. Leupeptin hemisulfate inhibits the activity of Cathepsin B, Cathepsin H, and Cathepsin L, and blocks fusion of amphipathic lysosomes. Leupeptin hemisulfate also has anti-inflammatory activity.

Acid phosphatase (ACP) is an enzyme that releases attached phosphate groups from other molecules during digestion, is stored in lysosomes, has an optimal acidic pH, and serves as a medical marker and target for cancer immunotherapy.