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Comprehensive analysis of the expression and prognostic value of CXC chemokines in colorectal cancer.

Abstract
The C-X-C motif (CXC) chemokines play an important role in inflammatory processes and angiogenesis and are also associated with tumor development, progression and metastasis. They can be either promoting or inhibiting factors in colorectal cancers (CRC). The expression patterns and prognostic values of the CXC family still need further investigation. In this study, we investigated data related to transcription, translation, survival and tumor immune infiltration for CXC chemokines in patients with CRC from the ONCOMINE, GEPIA, cBioPortal, HPA and TIMER databases. We found that the expression levels of CXCL1-3, CXCL5, and CXCL8 were higher in CRC tissues than in colorectal tissues. Expression among stages significantly varied for CXCL1-3 and CXCL9-11. The survival analysis revealed that high transcriptional levels of CXCL4 and CXCL9-11 could serve as positive prognostic factors for patients with CRC. CXCL9-11 were highly associated with CD8+ T cells and natural killer (NK) cells in the tumor immune infiltration analysis, indicating their role in the antitumor immune response. This study implies that CXCL1-3, CXCL5, and CXCL8 are important factors during CRC oncogenesis and that CXCL9-11 could be new biomarkers for the prognosis of CRC.
AuthorsLi Yu, Xinmei Yang, Chuchu Xu, Jiachun Sun, Zhipeng Fang, Hongming Pan, Weidong Han
JournalInternational immunopharmacology (Int Immunopharmacol) Vol. 89 Issue Pt B Pg. 107077 (Dec 2020) ISSN: 1878-1705 [Electronic] Netherlands
PMID33068862 (Publication Type: Journal Article)
CopyrightCopyright © 2020 Elsevier B.V. All rights reserved.
Chemical References
  • Biomarkers, Tumor
  • Chemokines, CXC
Topics
  • Biomarkers, Tumor (genetics, metabolism)
  • CD8-Positive T-Lymphocytes (immunology, metabolism)
  • Chemokines, CXC (genetics, metabolism)
  • Chemotaxis, Leukocyte
  • Colorectal Neoplasms (genetics, immunology, metabolism, pathology)
  • Databases, Genetic
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Killer Cells, Natural (immunology, metabolism)
  • Lymphocytes, Tumor-Infiltrating (immunology, metabolism)
  • Prognosis
  • Signal Transduction
  • Transcription, Genetic

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