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Interleukin 2 augmentation of the defective natural killer cell activity in patients with primary Sjögren's syndrome.

Abstract：

:Natural Killer (NK) cell activity against K562 target cells was measured in 21 female patients with primary Sjögren's syndrome (primary SS) and in 20 female normal controls matched for age. The in vitro effect of alpha-interferon (IF) and interleukin 2 (IL-2) on NK cell activity was examined and the percentage of large granular lymphocytes (LGL) in blood was measured. Median baseline NK cell activity in primary SS was 15.4% versus 24.4% in the controls (P less than 0.05). Median IF-enhanced NK cell activity in the SS group was 35.5% versus 49.6% in the controls (P less than 0.02). IL-2-enhanced NK cell activity was 35.5% versus 37.6% in the controls (n.s.) The proportion of LGL did not differ in the two groups. Median LGL/lymphocytes was 4.0% in the primary SS patients versus 4.5% in the controls (n.s.). We conclude that the defective NK cell activity in patients with primary SS is functional, as the number of LGL is normal. Further the NK cell activity off SS was restored by IL-2.

journal_name

Clin Exp Immunol

journal_title

Clinical and experimental immunology

authors

Pedersen BK,Oxholm P,Manthorpe R,Andersen V

subject

Has Abstract

pub_date

1986-01-01 00:00:00

pages

1-7

issue

1

eissn

0009-9104

issn

1365-2249

journal_volume

63

pub_type

杂志文章

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