Abstract:
:The HEp2 cell cultures appeared highly sensitive in detecting the antinuclear antibodies (ANAb) in systemic sclerosis, principally anticentromere antibodies of the CREST syndrome. The immunoblotting used with either complex cellular extracts from HeLa and rabbit thymus or purified nuclear components (high mobility group (HMG) proteins and histones) is able to identify precisely the ANAb targets and to contribute to diagnosis. With nuclear extracts of HeLa cells, the sera from 75.8% of CREST syndrome subjects stained 18 and 22 kD proteins. Corresponding antibodies were also detected in 72.7% of these patients, on HEp2 centromers by indirect immunofluorescence. With the same extracts, 33.3% of sera from diffuse sclerosis/acrosclerosis patients contain antibodies staining 86, 73, 32 and 30kD. These sera also stain 77, 66 and 63kD from thymus extracts. Corresponding antibodies will be the anti-SCL-70 antibodies defined by double immunodiffusion. The anti-HMG antibodies were infrequent in systemic sclerosis, rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) and consequently without interest for diagnosis. The anti-whole histones antibodies which are less frequent in diffuse sclerosis/acrosclerosis (35.7%) than in SLE (41.3%) recognize especially H1 and H2A in the first diseases, H1 and H2B in SLE and H1 and H3 in RA.
journal_name
Autoimmunityjournal_title
Autoimmunityauthors
Briolay J,Gioud M,Monier JC,Rodde JL,Cohen J,Roux B,Kaliss Bdoi
10.3109/08916938909019953subject
Has Abstractpub_date
1989-01-01 00:00:00pages
165-76issue
2eissn
0891-6934issn
1607-842Xjournal_volume
2pub_type
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