{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n Recent studies have highlighted a multifaceted role for members of the GAGE family—such as GAGE7B, which is representative of the broader group that includes GAGE12C—in cancer progression and cellular regulation. In gastric cancer, overexpression of GAGE7B has been shown to be strongly associated with lymph node metastasis, advanced clinical stage, and poor prognosis. Functionally, this CT (cancer‐testis) antigen not only promotes tumor cell metastasis and growth but also enhances angiogenesis through activation of the p38δ/pMAPKAPK2/pHSP27 signaling pathway. Intriguingly, GAGE7B acts as a competing endogenous RNA by binding to miR‑30c, thereby relieving miR‑30c–mediated suppression of p38δ and further amplifying oncogenic signaling."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Moreover, the GAGE family fits within a broader category of CT antigens whose expression is largely restricted to immune‐privileged germ cells and is aberrantly activated in a variety of malignancies. Differential expression profiles among CT antigens suggest subtype‐specific roles in cancer, making them attractive targets for immunotherapeutic strategies."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n In addition to their roles in malignancy, CT antigens including GAGE proteins have been detected in early human developmental tissues. For instance, immunohistochemical analyses in first trimester gonads reveal GAGE expression alongside other key regulators of sex‐differentiation, indicating a potential developmental role that may underlie their tumor‐specific reactivation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Finally, while evaluating the evolution and domain architecture of multidomain proteins in Metazoa, caution is warranted when analyzing CT antigens and other proteins because prediction errors can lead to misinterpretation of evolutionary changes. This underscores the need for rigorous bioinformatic validation when characterizing proteins, including those of the GAGE family."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Collectively, these findings suggest that GAGE proteins—exemplified by GAGE7B and related family members such as GAGE12C—play key roles in promoting oncogenic processes via modulation of specific signaling pathways and may serve as both prognostic biomarkers and potential targets in cancer immunotherapy. Although additional research is needed to fully understand their mechanistic contributions and regulation, the convergent evidence supports a significant impact for GAGE family proteins in both cancer and developmental contexts."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": "\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Duan-Bo Shi, Ran-Ran Ma, Hui Zhang, et al. "}, {"type": "b", "children": [{"type": "t", "text": "GAGE7B promotes tumor metastasis and growth via activating the p38δ/pMAPKAPK2/pHSP27 pathway in gastric cancer."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Exp Clin Cancer Res (2019)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1186/s13046-019-1125-z"}], "href": "https://doi.org/10.1186/s13046-019-1125-z"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "30871606"}], "href": "https://pubmed.ncbi.nlm.nih.gov/30871606"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Jun Yao, Otavia L Caballero, W K Alfred Yung, et al. 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"}, {"type": "b", "children": [{"type": "t", "text": "Temporal expression pattern of genes during the period of sex differentiation in human embryonic gonads."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Sci Rep (2017)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/s41598-017-15931-3"}], "href": "https://doi.org/10.1038/s41598-017-15931-3"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "29162857"}], "href": "https://pubmed.ncbi.nlm.nih.gov/29162857"}]}, {"type": "r", "ref": 4, "children": [{"type": "t", "text": "Alinda Nagy, László Bányai, László Patthy "}, {"type": "b", "children": [{"type": "t", "text": "Reassessing domain architecture evolution of metazoan proteins: major impact of errors caused by confusing paralogs and epaktologs."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Genes (Basel) (2011)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.3390/genes2030516"}], "href": "https://doi.org/10.3390/genes2030516"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "24710209"}], "href": "https://pubmed.ncbi.nlm.nih.gov/24710209"}]}, {"type": "r", "ref": 5, "children": [{"type": "t", "text": "Brendan D Stamper, Sarah S Park, Richard P Beyer, et al. 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