also demonstrated that B7-H4 was mainly involved in diverse OC anti-tumor immune responses and signaling pathways, including but not limited to IL-2/signal transducer and activator of transcription (STAT)5 signaling, the p53 pathway, mammalian target of rapamycin complex 1 (mTORC1) signaling, and apoptosis (40). Here, IL2 is linked to neoplasm.