partially digested Ag partially digested Ag Escape of antigens from phagosome to cytosol Authored: Garapati, P V, 2011-03-28 Edited: Garapati, P V, 2011-03-28 Pubmed17157489 Pubmed7809629 Pubmed8612129 Reactome Database ID Release 431236972 Reactome, http://www.reactome.org ReactomeREACT_111122 Reviewed: Desjardins, M, English, L, 2011-05-13 Upon phagolysosomal proteolysis the phagocytosed proteins still need to gain access to the cytosol for proteasomal access, transport into the ER and loading onto MHC class I. The mechanism for this escape of phagocytosed antigens remain unknown.