PCLAF and inflammatory bowel disease: In this study, we successfully isolated EVs from UV‐irradiated keratinocytes (termed UVKEV) and explored their potential as an innovative immunomodulatory therapeutic in the treatment of inflammatory bowel disease (IBD) and psoriasis.[20] Our findings revealed that UVKEV contained significantly elevated levels of PAF compared to their counterparts derived from the unirradiated keratinocytes (termed KEV).