ArticleCommunications biology2026
ETV7 promotes 5-FU resistance and malignant progression through CXCL1-induced NETs formation in colorectal cancer.
Article in Communications biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Resistance to 5-fluorouracil (5-FU) remains a major challenge in the treatment of colorectal cancer (CRC). Here, we identify ETS variant transcription factor 7 (ETV7) as significantly upregulated in CRC tissues and cell lines, with elevated expression associated with poor clinical prognosis. Functional assays demonstrate that ETV7 enhances CRC cell proliferation, invasion, and resistance to 5-FU. Mechanistically, ETV7 transcriptionally upregulates CXCL1, leading to increased neutrophil recruitment and enhanced formation of neutrophil extracellular traps (NETs). The resulting NETs-enriched tumor microenvironment promotes tumor aggressiveness and chemoresistance. Pharmacological inhibition of CXCL1 or degradation of NETs effectively attenuates ETV7-driven malignant phenotypes in vitro and in vivo. Collectively, these findings establish an ETV7-CXCL1-NETs axis that contributes to 5-FU resistance in CRC and suggest that targeting this pathway may improve chemotherapy response.
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