کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6157416 | 1598251 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Distal Angiopathy and Atypical Hemolytic Uremic Syndrome: Clinical and Functional Properties of an Anti-Factor H IgAλ Antibody
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
بیماریهای کلیوی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Distal Angiopathy and Atypical Hemolytic Uremic Syndrome: Clinical and Functional Properties of an Anti-Factor H IgAλ Antibody Distal Angiopathy and Atypical Hemolytic Uremic Syndrome: Clinical and Functional Properties of an Anti-Factor H IgAλ Antibody](/preview/png/6157416.png)
چکیده انگلیسی
Abnormal regulation of the alternative pathway of the complement system is a well-described trigger of microangiopathy leading to atypical hemolytic uremic syndrome (aHUS). However, the involvement of complement dysregulation in distal angiopathy has not been reported in adults. We describe the clinical course of a patient with severe distal angiopathy (amputation of all fingers and toes) followed 3 years later by aHUS with end-stage renal disease. This course was attributed to a circulating monoclonal immunoglobulin A λ light chain (IgAλ) with unusual properties: it bound complement factor H (CFH) and impaired CFH-glycosaminoglycan interaction and cell-surface protection. Local complement activation with distal angiopathy and microvascular injury was suggested by deposition of IgA, C4d, and C5b-9 in limb and preglomerular arteries. We therefore postulated that the monoclonal IgAλ inhibited activity of endothelial cell-bound CFH, which led to local activation of complement, vasoconstriction (distal angiopathy), and aHUS. While the patient was dependent on dialysis and plasma exchange, treatment with the anti-C5 antibody eculizumab induced remission of distal angiopathy and aHUS. During eculizumab treatment, kidney transplantation was performed. The patient had normal kidney function at the 3-year follow-up. We suggest that the association of distal angiopathy and aHUS in this patient is clearly linked to anti-CFH properties of the monoclonal IgAλ.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: American Journal of Kidney Diseases - Volume 66, Issue 2, August 2015, Pages 331-336
Journal: American Journal of Kidney Diseases - Volume 66, Issue 2, August 2015, Pages 331-336
نویسندگان
Claire MD, PhD, Yahsou MD, PhD, Lubka T. PhD, Cécile PhD, Sébastien MD, PhD, Frank MD, PhD, Jean Michel MD, PhD, Thomas MD, PhD, Guy MD, PhD, Véronique MD, PhD, Christian MD, PhD,