CD69 expression on neutrophils from patients with rheumatoid arthritis

Fabiola Atzeni, Nicoletta Del Papa, Piercarlo Sarzi-Puttini, Francesca Bertolazzi, Francesca Minonzio, Franco Capsoni

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Objective. Since the early activation antigen CD69 has been implicated in the pathogenesis of some inflammatory diseases, we evaluated the expression of the molecule on peripheral blood (PB) and synovial fluid (SF) neutrophils obtained from RA patients and its possible correlation with PB and SF cytokine concentration. Methods. CD69 membrane expression (and CD11b as control marker) was assessed by indirect immunofluorescence and flow cytometry analysis on purified PB and SF neutrophils. Cytokine levels (GM-CSF, IFN-γ, TNF-α) in plasma and SF supernatants were measured by ELISA. Results. CD69 was absent on control neutrophils, while it was expressed on PB neutrophils from RA patients although no detectable GM-CSF, IFN-γ or TNF-α was observed in their plasma. CD69 expression was still more evident on SF neutrophils from RA patients; 59% had detectable levels of INF-γ in their SF while GM-CSF and TNF-α were detectable in SF from 95% and 33% of RA patients, respectively. However, no correlation was observed between cytokine concentrations and CD69 expression on SF neutrophils. SF but not PB neutrophils from RA patients expressed increased amounts of CD11b when compared to control PB neutrophils without any correlation with CD69 membrane expression. Conclusion. The activation antigen CD69 is significantly expressed on PB and SF neutrophils from RA patients. However, the mechanism(s) of induction and its possible role in the pathogenesis of RA remain to be defined.

Original languageEnglish
Pages (from-to)331-334
Number of pages4
JournalClinical and Experimental Rheumatology
Volume22
Issue number3
Publication statusPublished - May 2004

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Synovial Fluid
Rheumatoid Arthritis
Neutrophils
Granulocyte-Macrophage Colony-Stimulating Factor
Cytokines
Membranes
Indirect Fluorescent Antibody Technique
Flow Cytometry
Enzyme-Linked Immunosorbent Assay

Keywords

  • CD69
  • Neutrophils
  • Rheumatoid arthritis

ASJC Scopus subject areas

  • Immunology
  • Rheumatology

Cite this

Atzeni, F., Del Papa, N., Sarzi-Puttini, P., Bertolazzi, F., Minonzio, F., & Capsoni, F. (2004). CD69 expression on neutrophils from patients with rheumatoid arthritis. Clinical and Experimental Rheumatology, 22(3), 331-334.

CD69 expression on neutrophils from patients with rheumatoid arthritis. / Atzeni, Fabiola; Del Papa, Nicoletta; Sarzi-Puttini, Piercarlo; Bertolazzi, Francesca; Minonzio, Francesca; Capsoni, Franco.

In: Clinical and Experimental Rheumatology, Vol. 22, No. 3, 05.2004, p. 331-334.

Research output: Contribution to journalArticle

Atzeni, F, Del Papa, N, Sarzi-Puttini, P, Bertolazzi, F, Minonzio, F & Capsoni, F 2004, 'CD69 expression on neutrophils from patients with rheumatoid arthritis', Clinical and Experimental Rheumatology, vol. 22, no. 3, pp. 331-334.
Atzeni F, Del Papa N, Sarzi-Puttini P, Bertolazzi F, Minonzio F, Capsoni F. CD69 expression on neutrophils from patients with rheumatoid arthritis. Clinical and Experimental Rheumatology. 2004 May;22(3):331-334.
Atzeni, Fabiola ; Del Papa, Nicoletta ; Sarzi-Puttini, Piercarlo ; Bertolazzi, Francesca ; Minonzio, Francesca ; Capsoni, Franco. / CD69 expression on neutrophils from patients with rheumatoid arthritis. In: Clinical and Experimental Rheumatology. 2004 ; Vol. 22, No. 3. pp. 331-334.
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AU - Minonzio, Francesca

AU - Capsoni, Franco

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AB - Objective. Since the early activation antigen CD69 has been implicated in the pathogenesis of some inflammatory diseases, we evaluated the expression of the molecule on peripheral blood (PB) and synovial fluid (SF) neutrophils obtained from RA patients and its possible correlation with PB and SF cytokine concentration. Methods. CD69 membrane expression (and CD11b as control marker) was assessed by indirect immunofluorescence and flow cytometry analysis on purified PB and SF neutrophils. Cytokine levels (GM-CSF, IFN-γ, TNF-α) in plasma and SF supernatants were measured by ELISA. Results. CD69 was absent on control neutrophils, while it was expressed on PB neutrophils from RA patients although no detectable GM-CSF, IFN-γ or TNF-α was observed in their plasma. CD69 expression was still more evident on SF neutrophils from RA patients; 59% had detectable levels of INF-γ in their SF while GM-CSF and TNF-α were detectable in SF from 95% and 33% of RA patients, respectively. However, no correlation was observed between cytokine concentrations and CD69 expression on SF neutrophils. SF but not PB neutrophils from RA patients expressed increased amounts of CD11b when compared to control PB neutrophils without any correlation with CD69 membrane expression. Conclusion. The activation antigen CD69 is significantly expressed on PB and SF neutrophils from RA patients. However, the mechanism(s) of induction and its possible role in the pathogenesis of RA remain to be defined.

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