May 30, 2013

Immunosenescent CD8+ T cells and C-X-C chemokine receptor type 3 chemokines are increased in human hypertension

Hypertension
Jong-Chan YounSungha Park

Abstract

The pathogenic role of T cells in hypertension has been documented well in recent animal studies. However, the existence of T-cell-driven inflammation in human hypertension has not been confirmed. Therefore, we undertook immunologic characterization of T cells from patients with hypertension and measured circulating levels of C-X-C chemokine receptor type 3 chemokines, which are well-known tissue-homing chemokines for T cells. We analyzed immunologic markers on T cells from patients with hypertension by multicolor flow cytometry. We then measured circulating levels of the C-X-C chemokine receptor type 3 chemokines, monokine induced by γ interferon (IFN), IFN γ-induced protein 10, and IFN-inducible T-cell α chemoattractant, in patients with hypertension and in age- and sex-matched control subjects by the cytometric bead array method. In addition, we examined histological features of IFN-inducible T-cell α chemoattractant expression from renal biopsy specimens of patients with hypertensive nephrosclerosis and control subjects. The total T-cell population from patients with hypertension showed an increased fraction of immunosenescent, proinflammatory, cytotoxic CD8(+) T cells. Circulating levels of C-X-C chemokine receptor type 3 ...Continue Reading

  • References20
  • Citations78

Mentioned in this Paper

Flow Cytometry
T-Lymphocyte
Pathogenic Organism
Suppressor T-Lymphocytes, CD8-Positive
Human leukocyte interferon
Renal Sclerosis With Hypertension
Immunocytochemistry
Immunology
Chemokine
Interferon

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