Immunobiology of CD28 expression on human neutrophils. I. CD28 regulates neutrophil migration by modulating CXCR-1 expression

K. Venuprasad, Pradeep Parab, D. V.R. Prasad, Satyan Sharma, Pinaki P. Banerjee, Manisha Deshpande, Dipendra K. Mitra, Subrata Pal, Ranjan Bhadra, Debashis Mitra, Bhaskar Saha

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

CD28, described as a T cell costimulatory molecule so far, is expressed on human peripheral blood neutrophils, as shown by cell surface staining and immunoprecipitation with anti-CD28 monoclonal antibody, and by reverse transcription PCR. The phorbol 12-myristate 13-acetate-augmented expression of CD28 on these cells can be blocked by actinomycin D, an RNA transcription inhibitor, and staurosporin, a protein kinase inhibitor. Cross-linking of CD28 results in an early increase in IL-8 receptor A (IL-8RA or CXCR-1) expression and a concurrent increase in IL-8-induced chemotaxis. The expression of CXCR-1 is down-regulated by receptor internalization 3 h after CD28 cross-linking with concurrent decrease in IL-8-induced chemotactic migration. Thus, our results demonstrate for the first time that CD28 is expressed on human peripheral blood neutrophils and that CD28 may play an important role in the regulation of IL-8RA expression and migration of neutrophils in response to IL-8.

Original languageEnglish (US)
Pages (from-to)1536-1543
Number of pages8
JournalEuropean Journal of Immunology
Volume31
Issue number5
DOIs
StatePublished - May 30 2001
Externally publishedYes

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Interleukin-8
Neutrophils
Interleukin-8 Receptors
Dactinomycin
Chemotaxis
Protein Kinase Inhibitors
Immunoprecipitation
Reverse Transcription
Acetates
Monoclonal Antibodies
Staining and Labeling
T-Lymphocytes
Polymerase Chain Reaction

Keywords

  • Chemokine
  • Chemotaxis
  • Costimulatory molecule
  • Neutrophil

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

Immunobiology of CD28 expression on human neutrophils. I. CD28 regulates neutrophil migration by modulating CXCR-1 expression. / Venuprasad, K.; Parab, Pradeep; Prasad, D. V.R.; Sharma, Satyan; Banerjee, Pinaki P.; Deshpande, Manisha; Mitra, Dipendra K.; Pal, Subrata; Bhadra, Ranjan; Mitra, Debashis; Saha, Bhaskar.

In: European Journal of Immunology, Vol. 31, No. 5, 30.05.2001, p. 1536-1543.

Research output: Contribution to journalArticle

Venuprasad, K. ; Parab, Pradeep ; Prasad, D. V.R. ; Sharma, Satyan ; Banerjee, Pinaki P. ; Deshpande, Manisha ; Mitra, Dipendra K. ; Pal, Subrata ; Bhadra, Ranjan ; Mitra, Debashis ; Saha, Bhaskar. / Immunobiology of CD28 expression on human neutrophils. I. CD28 regulates neutrophil migration by modulating CXCR-1 expression. In: European Journal of Immunology. 2001 ; Vol. 31, No. 5. pp. 1536-1543.
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AB - CD28, described as a T cell costimulatory molecule so far, is expressed on human peripheral blood neutrophils, as shown by cell surface staining and immunoprecipitation with anti-CD28 monoclonal antibody, and by reverse transcription PCR. The phorbol 12-myristate 13-acetate-augmented expression of CD28 on these cells can be blocked by actinomycin D, an RNA transcription inhibitor, and staurosporin, a protein kinase inhibitor. Cross-linking of CD28 results in an early increase in IL-8 receptor A (IL-8RA or CXCR-1) expression and a concurrent increase in IL-8-induced chemotaxis. The expression of CXCR-1 is down-regulated by receptor internalization 3 h after CD28 cross-linking with concurrent decrease in IL-8-induced chemotactic migration. Thus, our results demonstrate for the first time that CD28 is expressed on human peripheral blood neutrophils and that CD28 may play an important role in the regulation of IL-8RA expression and migration of neutrophils in response to IL-8.

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