PMID: 6978427Feb 1, 1982Paper

Glomerular localization of circulating antiglobulin activity in essential mixed cryoglobulinemia with glomerulonephritis

Kidney International
Q MaggioreG Colasanti

Abstract

Kidney biopsy samples from 27 patients with essential mixed cryoglobulinemia of the IgG-IgM(k) type and glomerulonephritis were studied to assess whether glomerular immunodeposits display antiglobulin (AG) activity similar to that of serum cryo-IgM. A preparation of heat-aggregated human IgG (FAIgG) was used to search for tissue AG activity, and blocking tests and reactivity tests were carried out to define the nature of this activity. Glomerular localization of FAIgG was observed in 17 out of 27 kidney specimens, the positive findings being always associated with IgM deposits. Prior exposure of tissue sections to anti-IgM serum blocked the FAIgG reaction, but no such effect was produced by the pretreatment with other antisera. The positive FAIgG tissue specimens yielded a similar fluorescence pattern with aggregated alkylated-reduced IgG, but did not react at all with the aggregated F(ab')2 or aggregated albumin. The IgM recovered in the eluate of a kidney biopsy specimen displayed AG activity. Patients with AG deposits showed more severe histologic changes and a greater renal functional impairment than did those without. The data support the notion that circulating cryo-IgM anti-IgG participates in the formation of glomerular...Continue Reading

References

May 1, 1977·The Journal of Clinical Investigation·A Gabriel, V Agnello
Apr 1, 1976·Archives of Internal Medicine·S C RistowI Shoulson
Feb 1, 1973·Kidney International·V AgnelloH G Kunkel
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Apr 1, 1981·Kidney International·Q MaggioreV Misefari
Aug 1, 1980·The American Journal of Medicine·P D GorevicE C Franklin

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Citations

Jan 1, 1988·Springer Seminars in Immunopathology·G Montagnino
Jan 1, 1986·Springer Seminars in Immunopathology·M H Wener, M Mannik
Apr 1, 1989·Kidney International·G D'AmicoR A Sinico
Sep 1, 1994·Journal of the American Academy of Dermatology·M Buchsbaum, V Werth
Feb 1, 1996·Rheumatic Diseases Clinics of North America·V Agnello, P L Romain
Nov 1, 1993·Clinical and Experimental Immunology·A L'AbbateA Craxi
Aug 1, 1990·Clinical and Experimental Immunology·M MiyazakiY Nomoto
Apr 1, 1983·Human Pathology·R T McCluskey, R Fienberg

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