CD47 expression in gastric cancer clinical correlates and association with macrophage infiltration.

{"sci_version": "1.2", "schema": "https://corpus.bntrg.co.uk/sci/1.0/sci.schema.json", "id": "pmid:33389016", "kind": "science-record", "revision": 3, "content_hash": "sha256:9cd7edad45d8ce298af6e6fe32be38cb7bb316c56e091e8097e3139df915199d", "created_at": "2026-11-01T17:34:33Z", "updated_at": "2026-11-01T21:24:25Z", "generator": {"name": "corpus-assay-engine", "run_id": "reading-sci-2026-11-01"}, "paper": {"state": "complete", "title": "CD47 expression in gastric cancer clinical correlates and association with macrophage infiltration.", "doi": "10.1007/s00262-020-02806-2", "pmid": "33389016", "authors": ["Mingsu Shi", "Yun Gu", "Kaifeng Jin", "Hanji Fang", "Yifan Chen", "Yifan Cao", "Xin Liu", "Kunpeng Lv", "Xudong He", "Chao Lin", "Hao Liu", "He Li", "Hongyong He", "Jing Qin", "Ruochen Li", "Heng Zhang", "Weijuan Zhang"], "journal": "Cancer immunology, immunotherapy : CII", "year": 2021, "abstract": "BACKGROUND: CD47 has been identified as an innate immune checkpoint and found to be associated with inferior survival in various types of cancer. However, the critical role of CD47 in gastric cancer and its association with tumor associated macrophages remain unclear.\nMETHODS: Tumor tissues of gastric cancer from Zhongshan Hospital and data from GSE62254, GSE84437 and TCGA datasets were analyzed. Immunohistochemistry was performed to detect the expression of CD47, CD11c, CD163 and CD68 in gastric cancer tissues. Kaplan-Meier curves and Cox model were used for comparing the clinical outcomes of patients belonging to different subgroups.\nRESULTS: Gastric cancer patients with high CD47 expression exhibited poor prognosis and inferior therapeutic responsiveness to fluorouracil-based adjuvant chemotherapy (ACT). A positive correlation was found between M1-polarized macrophage infiltration and CD47 expression in gastric cancer; however, the prognostic value of M1-polarized macrophages was attenuated in CD47-high gastric cancer patients. Moreover, we found that CD47 mRNA level was enriched in microsatellite-instable (MSI) subtype of gastric cancer and associated with ARID1A mutation and FGFR2 signaling pathway activation.\nCONCLUSIONS: Aberrant CD47 expression represented an independent predictor for adverse survival outcome and ACT resistance in gastric cancer. Targeting CD47 might be a promising strategy for gastric cancer patients.", "claims": [{"id": "claim-method", "statement": "Kaplan–Meier curves and Cox model were used for comparing the clinical outcomes of patients belonging to different subgroups.", "kind": "methodological", "target": null, "evidence": [{"asset": "source:pmid:33389016", "locator": "sections[0] \"Abstract\" paragraph 2", "quote": "Kaplan–Meier curves and Cox model were used for comparing the clinical outcomes of patients belonging to different subgroups."}], "state": "complete"}, {"id": "claim-data-access", "statement": "Tumor tissues of gastric cancer from Zhongshan Hospital and data from GSE62254, GSE84437 and TCGA datasets were analyzed.", "kind": "methodological", "target": null, "evidence": [{"asset": "source:pmid:33389016", "locator": "sections[0] \"Abstract\" paragraph 2", "quote": "Tumor tissues of gastric cancer from Zhongshan Hospital and data from GSE62254, GSE84437 and TCGA datasets were analyzed."}], "state": "complete"}, {"id": "claim-target-result", "statement": "Aberrant CD47 expression represented an independent predictor for adverse survival outcome and ACT resistance in gastric cancer.", "kind": "qualitative", "target": null, "evidence": [{"asset": "source:pmid:33389016", "locator": "sections[0] \"Abstract\" paragraph 4", "quote": "Aberrant CD47 expression represented an independent predictor for adverse survival outcome and ACT resistance in gastric cancer."}], "state": "complete"}], "gaps": []}, "experiment": {"state": "complete", "objective": "Aberrant CD47 expression represented an independent predictor for adverse survival outcome and ACT resistance in gastric cancer.", "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:33389016"], "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": "complete", "blocked_on": null, "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": ["data:geo:GSE62254"], "outputs": ["the source data with its repository provenance"], "instruments": [], "reagents": []}, {"id": "run_analysis", "order": 3, "name": "Run the published analysis", "kind": "analysis", "state": "complete", "blocked_on": null, "description": "Apply the paper's statistical method to the resolved series and compare the result with the published target.", "duration_hours": null, "parameters": {}, "inputs": ["data:geo:GSE62254"], "outputs": ["the replicated result and its comparison"], "instruments": [], "reagents": []}], "materials": [], "instruments": [], "reagents": [], "conditions": {}, "gaps": []}, "data": {"state": "partial", "assets": [{"id": "source:pmid:33389016", "role": "manuscript", "format": "xml", "media_type": "application/xml", "uri": "https://doi.org/10.1007/s00262-020-02806-2", "sha256": 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