{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nMCM7 is a core component of the MCM2–7 helicase complex, an ensemble essential for the initiation and elongation of DNA replication. Its functions include facilitating the proper progression of replication forks and serving as a scaffold for checkpoint signaling when DNA damage is encountered. Furthermore, MCM7 participates in the regulated disassembly of replication complexes from chromatin—for example, through interactions with regulators such as USP7—and is indirectly involved in the placement of cohesin rings to ensure sister chromatid cohesion."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "3"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond its canonical role in DNA replication, deregulation of MCM7 has been implicated in oncogenesis. In several tumor types—including neuroblastoma, cervical, prostate, lung, oral, and medulloblastoma—MCM7 is frequently overexpressed or amplified. In neuroblastoma, for instance, MCM7 is a direct transcriptional target of the MYCN oncogene, while in prostate cancer its locus can deliver a dual oncogenic insult when cooperating with an intronic miRNA cluster to enhance cellular transformation. Elevated MCM7 levels correlate with increased cellular proliferation, invasiveness, and aggressive clinical behavior. Its aberrant expression is therefore not only a marker of dysregulated replication licensing but also a factor actively contributing to tumor development."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "4", "end_ref": "12"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nClinically, MCM7 has emerged as a robust prognostic biomarker in a number of malignancies. Elevated expression in tumors such as endometrial, urothelial, and esophageal carcinomas—as well as in colorectal and lung cancers—correlates with higher proliferation indices, increased likelihood of metastasis, and poorer patient outcomes. These findings underscore the potential of MCM7 not only as a diagnostic tool but also as a therapeutic target, where modulation of its expression or activity might curb replicative stress and tumor progression."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "13", "end_ref": "16"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "David Cortez, Gloria Glick, Stephen J Elledge "}, {"type": "b", "children": [{"type": "t", "text": "Minichromosome maintenance proteins are direct targets of the ATM and ATR checkpoint kinases."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Proc Natl Acad Sci U S A (2004)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1073/pnas.0403410101"}], "href": "https://doi.org/10.1073/pnas.0403410101"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "15210935"}], "href": "https://pubmed.ncbi.nlm.nih.gov/15210935"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Madhav Jagannathan, Tin Nguyen, David Gallo, et al. 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