{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n GAGE family proteins are cancer/testis antigens that have been increasingly implicated in tumor progression. Studies have revealed that certain GAGE variants (for example, GAGE‐7C) can confer strong anti‐apoptotic activity by blocking signaling events downstream of caspase‐8 activation. This anti‐apoptotic effect renders tumor cells resistant to death receptor–mediated apoptosis as well as to cytotoxic agents such as Taxol or gamma‐irradiation, enabling enhanced long‐term survival and proliferation in malignant cells."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n In addition to inhibiting apoptosis, GAGE proteins have been demonstrated to promote cell migration and invasion. For instance, RNA interference experiments in melanoma cell lines have shown that knockdown of GAGE family members markedly impairs migration and invasion, suggesting that these proteins contribute to tumor spread and metastasis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Moreover, biochemical and structural analyses indicate that GAGE proteins are intrinsically disordered and capable of non–sequence-specific binding to double-stranded DNA. Their ability to interact with nuclear envelope components – as exemplified by the binding of a GAGE variant to the transcriptional regulator Germ cell-less (GCL) – raises the possibility that GAGE proteins may also function in chromatin regulation, thereby influencing gene expression programs that facilitate tumorigenesis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Complementing these findings, studies in gastric cancer have identified overexpression of a GAGE variant (GAGE7B) as correlating with more advanced disease. Enhanced expression of GAGE7B was associated with increased tumor metastasis, growth, and angiogenesis via activation of the p38δ/MAPKAPK2/HSP27 pathway. In this context, GAGE7B also appears to act as a competing endogenous RNA that binds miR‑30c, thereby relieving suppression of this signaling cascade."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Although the specific subtype GAGE12G is not always separately characterized, its membership in the GAGE family implies that it likely shares similar functionalities. In summary, GAGE proteins—including GAGE12G—appear to facilitate tumor progression by promoting cell survival through anti–apoptotic mechanisms, enhancing migration and invasion, and potentially modulating chromatin dynamics. These multifaceted roles make them attractive targets for therapeutic intervention in various malignancies.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Zoran M Cilensek, Fruma Yehiely, Rupinder K Kular, et al. "}, {"type": "b", "children": [{"type": "t", "text": "A member of the GAGE family of tumor antigens is an anti-apoptotic gene that confers resistance to Fas/CD95/APO-1, Interferon-gamma, taxol and gamma-irradiation."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Cancer Biol Ther (2002)"}]}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "12432251"}], "href": "https://pubmed.ncbi.nlm.nih.gov/12432251"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Otavia L Caballero, Tzeela Cohen, Sita Gurung, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Effects of CT-Xp gene knock down in melanoma cell lines."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Oncotarget (2013)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.18632/oncotarget.921"}], "href": "https://doi.org/10.18632/oncotarget.921"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "23625514"}], "href": "https://pubmed.ncbi.nlm.nih.gov/23625514"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "Morten F Gjerstorff, Heike I Rösner, Christina B Pedersen, et al. "}, {"type": "b", "children": [{"type": "t", "text": "GAGE cancer-germline antigens are recruited to the nuclear envelope by germ cell-less (GCL)."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "PLoS One (2012)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1371/journal.pone.0045819"}], "href": "https://doi.org/10.1371/journal.pone.0045819"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "23029259"}], "href": "https://pubmed.ncbi.nlm.nih.gov/23029259"}]}, {"type": "r", "ref": 4, "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"}]}]}]}