DIFFERENTIATION AND CHARACTERIZATION OF AUTOANTIBODIES AND THEIR ANTIGENS IN SJOGRENS SYNDROME
DIFFERENTIATION AND CHARACTERIZATION OF AUTOANTIBODIES AND THEIR ANTIGENS IN SJOGRENS SYNDROME
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DOI:
10.1002/art.1780190214
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发表时间:
1976-01-01
影响因子:
--
通讯作者:
TAN, EM
中科院分区:
文献类型:
--
作者:
ALSPAUGH, MA;TALAL, N;TAN, EM
Autoantibodies in Sjogrens syndrome (SS) were identified by their precipitin reactions with tissue antigens in immunodiffusion. The source of antigens was a sonicated extract of human lymphoid cells (WiI2) grown in tissue culture. Distinct precipitin systems (3) were identified and referred to as precipitins SS-A and SS-B, and rheumatoid arthritis precipitin (RAP). Precipitins SS-A and SS-B are present in high frequency in sera of patients with SS without associated rheumatoid arthritis (RA), and are absent or present in low frequency in many other connective tissue diseases. Patients with SS who had clinical features compatible with RA (SS-RA) did not have precipitins SS-A and SS-B, but had RAP. The latter precipitin was also present in RA patients in a similar order of frequency as in SS-RA. All 3 precipitin systems were reactions between immunoglobulins and cellular antigens. The origin of SS-A and SS-B antigens was demonstrated by immunofluorescence to be primarily from the nucleus, but the origin of RAP in the cell was not established.