Stromal Cell-Derived factor-1 and CXCR4 Receptor Interaction in Tumor Growth and Metastasis of Breast Cancer

Biomed Pharmacother. 2006 Jul;60(6):273-6. doi: 10.1016/j.biopha.2006.06.004. Epub 2006 Jun 28.


Stromal cell-derived factor-1 (SDF-1)/CXCR4 interaction is critical for the trafficking of lymphocytes, homing and retention of hematopoietic stem cells within the bone marrow and is essential in fetal hematopoiesis. Binding of SDF-1 to CXCR4 activates a variety of intracellular signal transduction pathways and effector molecules that regulate cell survival, proliferation, chemotaxis, migration and adhesion. Recently, intensive research has demonstrated that SDF-1/CXCR4 interaction also regulates several key events in wide variety of cancers. Serum-depleted media in the presence of SDF-1 protected the breast cancer cells from apoptosis. CXCR4-low-expressing MCF-7 formed small tumor at inoculated site in SCID mice 8-9 weeks after inoculation while completely failed to metastasis into various organs. In contrast, CXCR4-high-expressing MDA-231 cells were most efficient in the formation of a large tumor and organ-metastasis within 3 weeks in SCID mice. This review briefly focuses on the role of SDF-1/CXCR4 interaction in tumor growth and metastasis of breast cancer cell both in vitro and in vivo.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Breast Neoplasms / metabolism*
  • Cell Proliferation
  • Cell Survival
  • Chemokine CXCL12
  • Chemokines, CXC / metabolism*
  • Humans
  • Neoplasm Metastasis
  • Receptors, CXCR4 / metabolism*


  • CXCL12 protein, human
  • Chemokine CXCL12
  • Chemokines, CXC
  • Receptors, CXCR4