{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nZFP36L2 is a member of the CCCH-type zinc finger protein family—often referred to as a TIS11 family member or TIS11D—that binds adenylate‐ and uridylate-rich elements (AREs) in the 3′ untranslated regions of target mRNAs, thereby promoting their deadenylation and decay. Detailed structural studies of its related protein domains have uncovered a tandem zinc finger architecture with coordinated electrostatic and hydrogen‐bond interactions that govern specific RNA recognition and stability. These biophysical and mutational analyses provide a molecular framework for understanding how ZFP36L2 and its family members regulate mRNA turnover in inflammatory and oncogenic pathways."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "5"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn cancer and related proliferative disorders, ZFP36L2 functions as a key regulator of cell cycle progression and apoptosis. Its expression can be induced—as for example by p53—and enforced expression of ZFP36L2 in various cell lines has been shown to inhibit cell proliferation by lowering levels of cyclins and triggering cell-cycle arrest. In pancreatic ductal adenocarcinoma, downregulation of ZFP36L2 by microRNA-375 promotes aggressive cancer phenotypes, whereas in hematological malignancies, frameshift mutations or transcriptional repression of ZFP36L2 are associated with impaired apoptosis and altered differentiation. Moreover, deregulated genomic features—including oncogenic super-enhancer amplification and aberrant reintegration events targeting ZFP36L2—further reinforce its impact on tumorigenesis in gastric cancer, glioblastoma, and T-cell leukemias."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "6", "end_ref": "13"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond its roles in tumor cell proliferation, ZFP36L2 is critical in modulating immune and inflammatory responses. In CD4+ T cells, high basal expression of ZFP36L2 is rapidly downregulated upon receptor stimulation, and its forced expression in regulatory T cells reduces the levels of key transcription factors such as Helios, thereby impairing immunosuppressive functions. In dermal fibroblasts from psoriatic lesions, reduced expression of ZFP36L2 (along with related family proteins) is implicated in heightened cytokine production, while emerging evidence also indicates that ZFP36L2 may influence the expression of alternative splice isoforms of proteins like CD44 that are associated with metastatic progression."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "14", "end_ref": "16"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn the context of reproduction and embryonic development, ZFP36L2 emerges as an essential regulator of maternal mRNA decay and oocyte maturation. Novel pathogenic variants have been linked to defects in oocyte maturation and early embryonic arrest, thereby broadening its recognized role from post-transcriptional regulation in somatic cells to key functions in the subcortical maternal complex (SCMC). Additionally, investigations into common developmental malformations, such as non-syndromic orofacial clefting, further allude to ZFP36L2’s broader importance in normal embryogenesis and developmental stability."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "17", "end_ref": "19"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Brian P Hudson, Maria A Martinez-Yamout, H Jane Dyson, et al. 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