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Updated: Oct 2, 2025

A Flow Cytometry-based Assay to Identify Compounds That Disrupt Binding of Fluorescently-labeled CXC Chemokine Ligand 12 to CXC Chemokine Receptor 4
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A Flow Cytometry-based Assay to Identify Compounds That Disrupt Binding of Fluorescently-labeled CXC Chemokine Ligand 12 to CXC Chemokine Receptor 4

Published on: March 10, 2018

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CXCR2 Receptor: Regulation of Expression, Signal Transduction, and Involvement in Cancer

Jan Korbecki1, Patrycja Kupnicka1, Mikołaj Chlubek1

  • 1Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72 Av., 70-111 Szczecin, Poland.

International Journal of Molecular Sciences
|February 26, 2022
PubMed

Insights

Chemokine receptor CXCR2 (C-X-C motif chemokine receptor 2) is vital for immune cell and tumor cell migration, influencing cancer progression. Understanding CXCR2

Area of Science:

  • Oncology
  • Immunology
  • Cell Biology

Background:

  • Chemokines and their receptors regulate immune cell trafficking and are implicated in cancer metastasis.
  • CXCR2 (C-X-C motif chemokine receptor 2) is a key receptor for chemokines like CXCL8 (IL-8) and CXCL1 (GRO-α).
  • Dysregulation of CXCR2 signaling is increasingly recognized in various cancers.

Purpose of the Study:

  • To provide a comprehensive literature review on the multifaceted role of CXCR2 in cancer.
  • To elucidate the molecular mechanisms underlying CXCR2 expression, signal transduction, and cellular effects.
  • To detail CXCR2's involvement in tumor progression, angiogenesis, and immune cell recruitment.

Main Methods:

  • Comprehensive literature review of studies investigating CXCR2 in cancer.
  • Analysis of transcriptional regulation, including microRNA involvement.
  • Detailed examination of CXCR2 signal transduction pathways and downstream effects on the actin cytoskeleton.

Main Results:

  • CXCR2 expression is regulated at the transcriptional level, involving microRNAs.
  • CXCR2 activation triggers complex signal transduction pathways, affecting cell migration, proliferation, and invasion.
  • CXCR2 influences tumor microenvironment components, including angiogenesis, lymphangiogenesis, senescence, and immune cell infiltration (TANs, TAMs, MDSCs, T-regs).

Conclusions:

  • CXCR2 plays a critical role in multiple hallmarks of cancer, from tumor cell-autonomous functions to modulation of the tumor microenvironment.
  • Understanding CXCR2 signaling mechanisms provides insights into potential therapeutic targets for cancer treatment.
  • CXCR2 is a significant factor in cancer cell migration, invasion, and the recruitment of tumor-promoting immune cells.
Keywords:
CXCL1CXCR2GRO-αMGSAcancerchemokineinterleukin-8migration

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