Regulation of the Receptor Specificity and Function of the Chemokine RANTES (Regulated on Activation, Normal T Cell Expressed and Secreted) by Dipeptidyl Peptidase IV (CD26)-mediated Cleavage

DOI PDF 被引用文献16件
  • Tamas Oravecz
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Marina Pall
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Gregory Roderiquez
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Mark D. Gorrell
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Mary Ditto
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Nga Y. Nguyen
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Robert Boykins
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Edward Unsworth
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia
  • Michael A. Norcross
    From the *Division of Hematologic Products, ‡Division of Allergenics Products and Parasitology, and §Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland 20892; and ‖A.W. Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Centenary Institute of Cancer Medicine and Cell Biology, Newtown, New South Wales 2042, Australia

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<jats:p>CD26 is a leukocyte activation marker that possesses dipeptidyl peptidase IV activity but whose natural substrates and immunological functions have not been clearly defined. Several chemo-kines, including RANTES (regulated on activation, normal T cell expressed and secreted), have now been shown to be substrates for recombinant soluble human CD26. The truncated RANTES(3–68) lacked the ability of native RANTES(1–68) to increase the cytosolic calcium concentration in human monocytes, but still induced this response in macrophages activated with macrophage colony-stimulating factor. Analysis of chemokine receptor messenger RNAs and patterns of desensitization of chemokine responses showed that the differential activity of the truncated molecule results from an altered receptor specificity. RANTES(3–68) showed a reduced activity, relative to that of RANTES(1–68), with cells expressing the recombinant CCR1 chemokine receptor, but retained the ability to stimulate CCR5 receptors and to inhibit the cytopathic effects of HIV-1. Our results indicate that CD26-mediated processing together with cell activation–induced changes in receptor expression provides an integrated mechanism for differential cell recruitment and for the regulation of target cell specificity of RANTES, and possibly other chemokines.</jats:p>

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