Elevated Gene Expression of Argininosuccinate Synthetase in Peripheral Lymphocytes from Systemic Lupus Erythematosus (SLE) Patients
作者:
OhnoTakeshi,
KimuraYoshihito,
SugimuraKazuhisa,
SagawaAkira,
JhodoSatoshi,
AzumaIchiro,
期刊:
Autoimmunity
(Taylor Available online 1992)
卷期:
Volume 13,
issue 2
页码: 127-132
ISSN:0891-6934
年代: 1992
DOI:10.3109/08916939209001913
出版商: Taylor&Francis
关键词: SLE;argininosuccinate synthetase;gene expression;polymerase-chain reaction;L-arginine;urea cycle
数据来源: Taylor
摘要:
Argininosuccinate synthetase (ASS) is a rate-limiting enzyme of urea cycle and functions primarily in the liver, whereas ASS activity is hardly delected in normal lymphocytes. In this study, we examined the level of ASS gene expression in peripheral blood lymphocytes (PBL) from human SLE patients by amplification of reverse-transcribed mRNA using the polymerase chain reaction. We have demonstrated that (a) approximately 40% of SLE patients exhibited 2.5 to 5 times higher expression of ASS gene in PBL than those of healthy PBL and (b) the elevation of ASS gene expression of PBL significantly correlates with the active pathogenesis of SLE patients according to the criteria of Japanese Ministry of Health and Welfare (p<0.001 by student's two-tailedt-test). Thus, it is suggested that ASS gene expression is a promising marker of hyper-activated lymphocytes uniquely generated in patients with systemic autoimmune disease.
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