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Corthier A, Jachiet M, Bertin D, Servais A, Barbet C, Bigot A, Doutre MS, Bessis D, Bouffandeau A, Moranne O, Jarrot PA, Bardin N, Terrier B, Burtey S, Puéchal X, Daniel L, Jourde-Chiche N. Biopsy-proven kidney involvement in hypocomplementemic urticarial vasculitis. BMC Nephrol 2022; 23:67. [PMID: 35172758 PMCID: PMC8851735 DOI: 10.1186/s12882-022-02689-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 01/12/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hypocomplementemic urticarial vasculitis (HUV) is a rare systemic vasculitis. We aimed to describe the kidney involvement of HUV in a multicenter national cohort with an extended follow-up. METHODS All patients with HUV (international Schwartz criteria) with a biopsy-proven kidney involvement, identified through a survey of the French Vasculitis Study Group (FVSG), were included. A systematic literature review on kidney involvement of HUV was performed. RESULTS Twelve patients were included, among whom 8 had positive anti-C1q antibodies. All presented with proteinuria, from mild to nephrotic, and 8 displayed acute kidney injury (AKI), requiring temporary haemodialysis in 2. Kidney biopsy showed membrano-proliferative glomerulonephritis (MPGN) in 8 patients, pauci-immune crescentic GN or necrotizing vasculitis in 3 patients (with a mild to severe interstitial inflammation), and an isolated interstitial nephritis in 1 patient. C1q deposits were observed in the glomeruli (n = 6), tubules (n = 4) or renal arterioles (n = 3) of 8 patients. All patients received corticosteroids, and 9 were also treated with immunosuppressants or apheresis. After a mean follow-up of 8.9 years, 6 patients had a preserved renal function, but 2 patients had developed stage 3-4 chronic kidney disease (CKD) and 4 patients had reached end-stage kidney disease (ESKD), among whom 1 had received a kidney transplant. CONCLUSION Renal involvement of HUV can be responsible for severe AKI, CKD and ESRD. It is not always associated with circulating anti-C1q antibodies. Kidney biopsy shows mostly MPGN or crescentic GN, with frequent C1q deposits in the glomeruli, tubules or arterioles.
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Affiliation(s)
- Alice Corthier
- Department of Nephrology, Aix-Marseille Univ, Hôpital de la Conception, AP-HM, 147 Bd Baille, 13005, Marseille, France
| | - Marie Jachiet
- Department of Dermatology, Hôpital Saint Louis, AP-HP, Université Paris Diderot, Paris, France
| | - Daniel Bertin
- Laboratory of Immunology, Hôpital de la Conception, AP-HM, Marseille, France
| | - Aude Servais
- Department of Nephrology, Hôpital Necker, AP-HP, Paris, France
| | | | - Adrien Bigot
- Department of Internal Medicine, CHU de Tours, Tours, France
| | | | - Didier Bessis
- Department of Dermatology, Hôpital Saint Eloi, Université de Montpellier, Montpellier, France
| | | | - Olivier Moranne
- Department of Nephrology, Dialysis, Apheresis, CHU Caremeau, Nimes, France.,Université de Montpellier-Nîmes, Nîmes, France
| | - Pierre-André Jarrot
- Department of Internal Medicine and Clinical Immunology, Hôpital de la Conception, AP-HM, Marseille, France.,Aix-Marseille Univ, C2VN, INSERM 1263, INRA 1260, Marseille, France
| | - Nathalie Bardin
- Laboratory of Immunology, Hôpital de la Conception, AP-HM, Marseille, France.,Aix-Marseille Univ, C2VN, INSERM 1263, INRA 1260, Marseille, France
| | - Benjamin Terrier
- Department of Internal Medicine, National Reference Center for Rare Systemic Autoimmune Diseases, Cochin Hospital, Paris, France.,Paris Descartes University, Paris, France
| | - Stephane Burtey
- Department of Nephrology, Aix-Marseille Univ, Hôpital de la Conception, AP-HM, 147 Bd Baille, 13005, Marseille, France.,Aix-Marseille Univ, C2VN, INSERM 1263, INRA 1260, Marseille, France
| | - Xavier Puéchal
- Department of Internal Medicine, National Reference Center for Rare Systemic Autoimmune Diseases, Cochin Hospital, Paris, France.,Paris Descartes University, Paris, France
| | - Laurent Daniel
- Aix-Marseille Univ, C2VN, INSERM 1263, INRA 1260, Marseille, France.,Department of Pathology, Aix-Marseille Univ, Hôpital de la Timone, AP-HM, Marseille, France
| | - Noémie Jourde-Chiche
- Department of Nephrology, Aix-Marseille Univ, Hôpital de la Conception, AP-HM, 147 Bd Baille, 13005, Marseille, France. .,Aix-Marseille Univ, C2VN, INSERM 1263, INRA 1260, Marseille, France.
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Circulating C1q levels in health and disease, more than just a biomarker. Mol Immunol 2021; 140:206-216. [PMID: 34735869 DOI: 10.1016/j.molimm.2021.10.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/03/2021] [Accepted: 10/11/2021] [Indexed: 12/21/2022]
Abstract
C1q is the recognition molecule of the classical pathway of the complement system. By binding to its targets, such as antigen-bound immunoglobulins or C-reactive protein, C1q contributes to the innate defense against infections. However, C1q also plays several other roles beyond its traditional role in complement activation. Circulating levels of C1q are determined in routine diagnostics as biomarker in several diseases. Decreased C1q levels are present in several autoimmune conditions. The decreased levels reflect the consumption of C1q by complement activation and serves as a biomarker for disease activity. In contrast, increased C1q levels are present in infectious and inflammatory diseases and may serve as a diagnostic biomarker. The increased levels of C1q are still incompletely understood but are suggested to modulate the adaptive immune response as C1q is known to impact on the maturation status of antigen-presenting cells and C1q impacts directly on T cells leading to decreased T-cell activity in high C1q conditions. In this review, we provide a comprehensive overview of the current literature on circulating levels of C1q in health and disease, and discuss how C1q can both protect against infections as well as maintain tolerance by regulating adaptive immunity.
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Kidney Involvement in Hypocomplementemic Urticarial Vasculitis Syndrome-A Case-Based Review. J Clin Med 2020; 9:jcm9072131. [PMID: 32640739 PMCID: PMC7408727 DOI: 10.3390/jcm9072131] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/25/2020] [Accepted: 07/03/2020] [Indexed: 11/16/2022] Open
Abstract
Hypocomplementemic urticarial vasculitis syndrome (HUVS), or McDuffie syndrome, is a rare small vessel vasculitis associated with urticaria, hypocomplementemia and positivity of anti-C1q antibodies. In rare cases, HUVS can manifest as an immune-complex mediated glomerulonephritis with a membranoproliferative pattern of injury. Due to the rarity of this disorder, little is known about the clinical manifestation, pathogenesis, treatment response and outcome of such patients. We describe here three cases of HUVS with severe renal involvement. These patients had a rapidly progressive form of glomerulonephritis with severe nephrotic syndrome against a background of a membranoproliferative pattern of glomerular injury with extensive crescent formation. Therefore, these patients required aggressive induction and maintenance immunosuppressive therapy, with a clinical and renal response in two patients, while the third patient progressed to end-stage renal disease. Because of the rarity of this condition, there are few data regarding the clinical presentation, pathology and outcome of such patients. Accordingly, we provide an extensive literature review of cases reported from 1976 until 2020 and place them in the context of the current knowledge of HUVS pathogenesis. We identified 60 patients with HUVS and renal involvement that had adequate clinical data reported, out of which 52 patients underwent a percutaneous kidney biopsy. The most frequent renal manifestation was hematuria associated with proteinuria (70% of patients), while one third had abnormal kidney function on presentation (estimated glomerular filtration (GFR) below 60 mL/min/1.73 m2). The most frequent glomerular pattern of injury was membranoproliferative (35%), followed by mesangioproliferative (21%) and membranous (19%). Similar to other systemic vasculitis, renal involvement carries a poorer prognosis, but the outcome can be improved by aggressive immunosuppressive treatment.
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Boyer A, Gautier N, Comoz F, Hurault de Ligny B, Aouba A, Lanot A. [Nephropathy associated with hypocomplementemic urticarial vasculitis: A case report and literature review]. Nephrol Ther 2020; 16:124-135. [PMID: 31928955 DOI: 10.1016/j.nephro.2019.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/08/2019] [Accepted: 09/01/2019] [Indexed: 11/25/2022]
Abstract
Hypocomplementemic urticarial vasculitis is a rare systemic vasculitis, affecting small vessels, characterised by chronicle urticaria, hypocomplementemia, and systemic manifestations. Renal involvement, whose prevalence varies between 9% and 60%, is mainly glomerular. We here report the case of a 59 years old woman presenting kidney failure, associated with chronicle urticaria and arthralgias. Laboratory investigation showed haematuria, proteinuria, hypocomplementemia and anti-SSa antibody positivity. A percutaneous kidney biopsy revealed focal and segmental glomerulonephritis associated with an acute interstitial nephritis. Hypocomplementemic urticarial vasculitis diagnosis was established after identifying anti-C1q antibodies. The lack of a dry syndrome, the negativity of a Schirmer test and the lack of sialadenitis on a salivary gland biopsy excluded an associated Gougerot-Sjögren Syndrome. The patient was treated with hydroxychloroquine and low-dose steroids, enabling a clinical and biological recovery. Of the 82 cases in the literature describing hypocomplementemic urticarial vasculitis associated nephropathies, 72 (88%) were a glomerular impairment, most frequently secondary to membranoproliferative glomerulonephritis. Only 6 (7%) tubulo-interstitial nephritis have been reported, 4 of them being associated with a glomerulonephritis. Patients were more likely to be women, aged in their third decade. The most frequent renal manifestations were haematuria (60%), and proteinuria (52%). Kidney failure was rarely observed (22%), with a fairly good renal prognosis. Hypocomplementemic urticarial vasculitis was associated with a systemic disease in 11 (13%) patients. In the absence of recommendations, the treatment strategy remains to be defined.
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Affiliation(s)
- Annabel Boyer
- Centre universitaire des maladies rénales, CHU de Caen, avenue de la côte de Nacre, 14033 Caen cedex 9, France; Unicaen, UFR de médecine, Normandie Université, 2, rue des Rochambelles, 14032 Caen cedex, France
| | - Nicolas Gautier
- Centre universitaire des maladies rénales, CHU de Caen, avenue de la côte de Nacre, 14033 Caen cedex 9, France; Unicaen, UFR de médecine, Normandie Université, 2, rue des Rochambelles, 14032 Caen cedex, France
| | - François Comoz
- Service d'anatomopathologie, CHU de Caen, avenue de la côte de Nacre, 14033 Caen cedex 9, France
| | - Bruno Hurault de Ligny
- Centre universitaire des maladies rénales, CHU de Caen, avenue de la côte de Nacre, 14033 Caen cedex 9, France; Unicaen, UFR de médecine, Normandie Université, 2, rue des Rochambelles, 14032 Caen cedex, France
| | - Achille Aouba
- Service de médecine interne, CHU de Caen, avenue de la côte de Nacre, 14033 Caen cedex 9, France
| | - Antoine Lanot
- Centre universitaire des maladies rénales, CHU de Caen, avenue de la côte de Nacre, 14033 Caen cedex 9, France; Unicaen, UFR de médecine, Normandie Université, 2, rue des Rochambelles, 14032 Caen cedex, France.
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