JUN and colitis: Supporting this idea, PHB2 was found to be a putative mTORC1 interactor in human T lymphoblasts (CCRF-CEM) and human embryonic kidney (HEK293) cells (Rahman et al., 2014), while PHB1 was found to bind to the mTOR inhibitor FK506 binding protein 8 (FKBP8) in different cell lines (Zhang et al., 2021), to inhibit c-Jun N-terminal kinase (JNK) signaling in cancer cell lines (Yang et al., 2019) and to stimulate c-Jun expression in cells of the colon of a mouse model of colitis (Kathiria et al., 2013).