DNAH7 mutations benefit colorectal cancer patients receiving immune checkpoint inhibitors.

{"sci_version": "1.2", "schema": "https://corpus.bntrg.co.uk/sci/1.0/sci.schema.json", "id": "pmid:36660654", "kind": "science-record", "revision": 3, "content_hash": "sha256:6e9343b747cafbd0c0032ca7259c4f1a3323342838ca607a172c7179848c5c1c", "created_at": "2026-11-01T19:01:13Z", "updated_at": "2026-11-01T22:08:34Z", "generator": {"name": "corpus-assay-engine", "run_id": "reading-sci-2026-11-01"}, "paper": {"state": "complete", "title": "DNAH7 mutations benefit colorectal cancer patients receiving immune checkpoint inhibitors.", "doi": "10.21037/atm-22-6166", "pmid": "36660654", "authors": ["Wenjuan Yang", "Zhengjie Shen", "Ti Yang", "Mianhua Wu"], "journal": "Annals of translational medicine", "year": 2022, "abstract": "Background: Colorectal cancer (CRC) is a malignant tumor associated with a high mortality rate. While the advent of immune checkpoint inhibitors (ICIs) has been a gamechanger, only a small percentage of CRC patients benefit from ICIs. The pathological mechanism of CRC is not well understood, but somatic mutations, especially missense mutations, are believed to play an important role. This study examined the relationship between ICIs in colorectal cancer and missense mutations in the axonemal dynein heavy chain gene 7 (DNAH7).\nMethods: A clinical cohort (n=690) and the CRC data from the publicly available Cancer Genome Atlas (TCGA) were examined. Gene Set Enrichment Analysis, ESTIMATE analysis, and clinical correlation analysis were performed to explore the effects and mechanisms of DNAH7 mutation on immunotherapy in colorectal cancer.\nResults: The results showed that CRC patients with DNAH7 mutations can benefit more from ICIs (P<0.05). Patients with DNAH7 mutation had higher ESTIMATE scores, immune scores, and matrix scores, compared to patients without the DNAH7 mutation (P<0.001). The transport of small molecules, keratinization, asthma, autoimmune thyroid disease, allograft rejection, and other pathways were significantly enriched in DNAH7 mutated tissues (P<0.05). The top key genes associated with the DNAH7 mutation included AQP8, MS4A12, GUCA2B, and ZG16 (P<0.01).\nConclusions: The current study not only demonstrated the significance of DNAH7 as a risk factor and prognostic feature in CRC, but also revealed that DNAH7 mutations might affect the clinical efficacy of ICIs by impacting the tumor immune microenvironment.", "claims": [{"id": "claim-data-access", "statement": "The rectal adenocarcinoma (READ) and colonic adenocarcinoma (COAD) datasets, including 690 colorectal cancer (CRC) samples, and all corresponding clinical data, were obtained from The Cancer Genome Atlas (TCGA) database (http://gdc-portal.nci.nih.gov/).", "kind": "methodological", "target": null, "evidence": [{"asset": "source:pmid:36660654", "locator": "sections[4] \"Data download\" paragraph 2", "quote": "The rectal adenocarcinoma (READ) and colonic adenocarcinoma (COAD) datasets, including 690 colorectal cancer (CRC) samples, and all corresponding clinical data, were obtained from The Cancer Genome Atlas (TCGA) database (http://gdc-portal.nci.nih.gov/)."}], "state": "complete"}, {"id": "claim-target-result", "statement": "The results showed that CRC patients with DNAH7 mutations can benefit more from ICIs (P<0.05).", "kind": "quantitative", "target": {"value": 0.05, "unit": "p-value", "tolerance": null, "source": "The results showed that CRC patients with DNAH7 mutations can benefit more from ICIs (P<0.05)."}, "evidence": [{"asset": "source:pmid:36660654", "locator": "sections[0] \"Abstract\" paragraph 3", "quote": "The results showed that CRC patients with DNAH7 mutations can benefit more from ICIs (P<0.05)."}], "state": "complete"}], "gaps": []}, "experiment": {"state": "partial", "objective": "The results showed that CRC patients with DNAH7 mutations can benefit more from ICIs (P<0.05).", "steps": [{"id": "read_published_estimate", "order": 1, "name": "Read the published estimate from the source", "kind": "other", "state": "complete", "blocked_on": null, "description": "The claim, method and evidence span published with the source article.", "duration_hours": null, "parameters": {}, "inputs": ["source:pmid:36660654"], "outputs": ["the published estimate and its evidence"], "instruments": [], "reagents": []}, {"id": "obtain_source_data", "order": 2, "name": "Obtain the source data from the named repository", "kind": "data-preparation", "state": "blocked", "blocked_on": "data:accession_absent", "description": "The GEO series accession resolves and its sample accessions are listed. This lane did not download the dataset or read its licence.", "duration_hours": null, "parameters": {}, "inputs": [], "outputs": ["the source data with its repository provenance"], "instruments": [], "reagents": []}, {"id": "run_analysis", "order": 3, "name": "Run the published analysis", "kind": "analysis", "state": "blocked", "blocked_on": "method:student_t", "description": "Apply the paper's statistical method to the resolved series and compare the result with the published target.", "duration_hours": null, "parameters": {}, "inputs": [], "outputs": ["the replicated result and its comparison"], "instruments": [], "reagents": []}], "materials": [], "instruments": [], "reagents": [], "conditions": {}, "gaps": ["step:run_analysis blocked on method:student_t", "step:obtain_source_data blocked on data:accession_absent"]}, "data": {"state": "partial", "assets": [{"id": "source:pmid:36660654", "role": "manuscript", "format": "xml", "media_type": "application/xml", "uri": "https://doi.org/10.21037/atm-22-6166", "sha256": "sha256:99eac19d8a279478e30c13e9891d10a177dc992125ba1ed16a5046c96237a651", "bytes": 32226, "access": "open", "state": "resolved", "reader": null, "reader_status": "reader_required", "identifier": "10.21037/atm-22-6166", "version": null, "note": "Full article fetched from PMC; 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