The Journal of Experimental Medicine
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The Journal of Experimental Medicine, Vol 130, 203-216, Copyright © 1969 by The Rockefeller University Press

ARTICLE

IMMUNOLOGIC STUDIES OF AUTOIMMUNE DISEASE IN NZB/NZW F1 MICE : I. BINDING OF FLUORESCEIN-LABELED ANTINUCLEOSIDE ANTIBODIES IN LESIONS OF LUPUS-LIKE NEPHRITIS



B. C. Seegal M.D.1, L. Accinni Ph.D.1, G. A. Andres M.D.1, S. M. Beiser Ph.D.1, C. L. Christian M.D.1, B. F. Erlanger Ph.D.1, and K. C. Hsu Ph.D.1

1 From the Departments of Microbiology and Medicine, College of Physicians and Surgeons, Columbia University, New York 10032, and Second Clinica Medico della Universita di Roma, Rome, Italy

For the past 3 years NZB and NZW mice have been maintained by sister-brother matings from English breeder stock. NZB/NZW F1 hybrids developed lupus-like nephritis during the 6th to 7th month and few survived beyond the 8th month. Renal tissues of these animals were examined with fluorescein-labeled antinucleoside sera, specific for thymine and cytosine, for the presence of denatured DNA in GCW, and with labeled antibody to mouse IgG for the presence of excess host globulin in the same areas. The following results have been obtained:

(a) All 51 hybrids, over 5 months of age, had an excess of mouse globulin in GCW. 40 animals between the ages of 5 and 12 months showed, in the same areas, antigens which bound one or both of the antinucleoside antibodies.

(b) Renal tissues of 19 NZB mice, 5–19 months old, and 27 NZW mice, 2–18 months old, were examined. Excess host globulin was seen in GCW of 13 NZB and 20 NZW animals. The tissues of only two old NZB mice, 14 months of age, bound antinucleoside antibody but none of the other animals did.

The association of rapidly fatal lupus-like nephritis in NZB/NZW F1 mice with denatured DNA and mouse globulin in GCW supports the hypothesis involving this antigen-antibody complex in the pathogenesis of the disease.

 Submitted on October 24, 1968


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