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Presence of Deposits in Apparently Uninvolved Skin and Occurrence of Serum Antiepithelial Antibodies

Francisco P. Quismorio, MD; Thomas H. Rea, MD; Norman E. Levan, MD; George J. Friou, MD

Arch Dermatol. 1975;111(3):331-334.

Abstract
Immunoglobulin deposits were detected in ten of 13 biopsy specimens from apparently uninvolved skin of patients with lepromatous leprosy. There were deposits of IgM at the dermoepidermal junction in the skin of five patients, and deposits of IgM along the dermal collagen and elastic fibers in the skin of the other five. The deposits were eluted with acid buffers and high molarity salt solution. Circulating IgG antibodies to intercellular substance of epithelial cells, similar to those present in pemphigus vulgaris, were found in 25% of patients with lepromatous leprosy who were studied. These antibodies appeared to be different from the skin-bound immunoglobulin deposits.

Author Affiliations
From the Clinical Immunology and Rheumatic Disease Section and Dermatology Section, Department of Medicine, University of Southern California School of Medicine, Los Angeles.

Footnotes
Accepted for publication Sept 26, 1974.

Read in part before the Annual Leprosy Research Conference, Menlo Park, Calif, May 16, 1974.

Reprint requests to Clinical Immunology and Rheumatic Disease Section, LAC/USC Medical Center, 2025 Zonal Ave, Los Angeles, CA 90033 (Dr. Quismorio).

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