RGD Reference Report - Cytokine-mediated deployment of SDF-1 induces revascularization through recruitment of CXCR4+ hemangiocytes. - Rat Genome Database

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Cytokine-mediated deployment of SDF-1 induces revascularization through recruitment of CXCR4+ hemangiocytes.

Authors: Jin, DK  Shido, K  Kopp, HG  Petit, I  Shmelkov, SV  Young, LM  Hooper, AT  Amano, H  Avecilla, ST  Heissig, B  Hattori, K  Zhang, F  Hicklin, DJ  Wu, Y  Zhu, Z  Dunn, A  Salari, H  Werb, Z  Hackett, NR  Crystal, RG  Lyden, D  Rafii, S 
Citation: Jin DK, etal., Nat Med. 2006 May;12(5):557-67. Epub 2006 Apr 30.
RGD ID: 10449511
Pubmed: PMID:16648859   (View Abstract at PubMed)
PMCID: PMC2754288   (View Article at PubMed Central)
DOI: DOI:10.1038/nm1400   (Journal Full-text)

The mechanisms through which hematopoietic cytokines accelerate revascularization are unknown. Here, we show that the magnitude of cytokine-mediated release of SDF-1 from platelets and the recruitment of nonendothelial CXCR4+ VEGFR1+ hematopoietic progenitors, 'hemangiocytes,' constitute the major determinant of revascularization. Soluble Kit-ligand (sKitL), thrombopoietin (TPO, encoded by Thpo) and, to a lesser extent, erythropoietin (EPO) and granulocyte-macrophage colony-stimulating factor (GM-CSF) induced the release of SDF-1 from platelets, enhancing neovascularization through mobilization of CXCR4+ VEGFR1+ hemangiocytes. Although revascularization of ischemic hindlimbs was partially diminished in mice deficient in both GM-CSF and G-CSF (Csf2-/- Csf3-/-), profound impairment in neovascularization was detected in sKitL-deficient Mmp9-/- as well as thrombocytopenic Thpo-/- and TPO receptor-deficient (Mpl-/-) mice. SDF-1-mediated mobilization and incorporation of hemangiocytes into ischemic limbs were impaired in Thpo-/-, Mpl-/- and Mmp9-/- mice. Transplantation of CXCR4+ VEGFR1+ hemangiocytes into Mmp9-/- mice restored revascularization, whereas inhibition of CXCR4 abrogated cytokine- and VEGF-A-mediated mobilization of CXCR4+ VEGFR1+ cells and suppressed angiogenesis. In conclusion, hematopoietic cytokines, through graded deployment of SDF-1 from platelets, support mobilization and recruitment of CXCR4+ VEGFR1+ hemangiocytes, whereas VEGFR1 is essential for their angiogenic competency for augmenting revascularization. Delivery of SDF-1 may be effective in restoring angiogenesis in individuals with vasculopathies.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
limb ischemia  ISOCsf2 (Mus musculus)10449511; 10449511protein:increased expression:plasma:RGD 
limb ischemia  IEP 10449511protein:increased expression:plasma:RGD 

Objects Annotated

Genes (Rattus norvegicus)
Csf2  (colony stimulating factor 2)

Genes (Mus musculus)
Csf2  (colony stimulating factor 2 (granulocyte-macrophage))

Genes (Homo sapiens)
CSF2  (colony stimulating factor 2)


Additional Information