{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n KRTAP2-1 appears to have multifaceted roles across several biological systems and disease contexts. In oncology, altered methylation of KRTAP2-1 is part of a nine‐mRNA prognostic signature for clear cell renal cell carcinoma that is functionally linked to inflammation‐related and neuroactive ligand receptor pathways."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": " In thyroid cancer, differential expression of KRTAP2-1 contributes to a gene panel that distinctly differentiates radiation-induced papillary thyroid carcinoma from its sporadic counterpart, demonstrating its potential utility as a diagnostic marker for tumor etiology."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": " Beyond cancer, KRTAP2-1—as a member of the high-sulfur keratin-associated protein family—has been characterized in sheep, where its allelic variants are associated with expression in the skin and may affect fiber diameter, underscoring its role in keratin structure and function."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": " Complementary studies using integrated omics approaches have identified KRTAP2-1 as one of several “missing proteins” with tissue-specific expression patterns, while investigations into nutritional epigenetics have shown that its methylation status is sensitive to polyphenol exposure, suggesting its potential as an epigenetic marker for long-term dietary influences"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": "and."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Collectively, these findings highlight KRTAP2-1 as a multifunctional molecule involved in structural keratin biology as well as in cancer-related and environmental response pathways. Its involvement in diverse processes makes KRTAP2-1 a promising target for further research into prognostic biomarkers, diagnostic differentiation in thyroid carcinoma, and the functional impact of epigenetic modifications induced by nutritional exposures.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Jingmin Zhou, Guanghua Liu, Xingcheng Wu, et al. 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