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Spiera RF, Unizony S, Warrington KJ, Sloane J, Giannelou A, Nivens MC, Akinlade B, Wong W, Bhore R, Lin Y, Buttgereit F, Devauchelle-Pensec V, Rubbert-Roth A, Yancopoulos GD, Marrache F, Patel N, Dasgupta B. Sarilumab for Relapse of Polymyalgia Rheumatica during Glucocorticoid Taper. N Engl J Med 2023; 389:1263-1272. [PMID: 37792612 DOI: 10.1056/nejmoa2303452] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
BACKGROUND More than half of patients with polymyalgia rheumatica have a relapse during tapering of glucocorticoid therapy. Previous studies have suggested that interleukin-6 blockade may be clinically useful in the treatment of polymyalgia rheumatica. Sarilumab, a human monoclonal antibody, binds interleukin-6 receptor α and efficiently blocks the interleukin-6 pathway. METHODS In this phase 3 trial, we randomly assigned patients in a 1:1 ratio to receive 52 weeks of a twice-monthly subcutaneous injection of either sarilumab (at a dose of 200 mg) plus a 14-week prednisone taper or placebo plus a 52-week prednisone taper. The primary outcome at 52 weeks was sustained remission, which was defined as the resolution of signs and symptoms of polymyalgia rheumatica by week 12 and sustained normalization of the C-reactive protein level, absence of disease flare, and adherence to the prednisone taper from weeks 12 through 52. RESULTS A total of 118 patients underwent randomization (60 to receive sarilumab and 58 to receive placebo). At week 52, sustained remission occurred in 28% (17 of 60 patients) in the sarilumab group and in 10% (6 of 58 patients) in the placebo group (difference, 18 percentage points; 95% confidence interval, 4 to 32; P = 0.02). The median cumulative glucocorticoid dose at 52 weeks was significantly lower in the sarilumab group than in the placebo group (777 mg vs. 2044 mg; P<0.001). The most common adverse events with sarilumab as compared with placebo were neutropenia (15% vs. 0%), arthralgia (15% vs. 5%), and diarrhea (12% vs. 2%). More treatment-related discontinuations were observed in the sarilumab group than in the placebo group (12% vs. 7%). CONCLUSIONS Sarilumab showed significant efficacy in achieving sustained remission and reducing the cumulative glucocorticoid dose in patients with a relapse of polymyalgia rheumatica during glucocorticoid tapering. (Funded by Sanofi and Regeneron Pharmaceuticals; SAPHYR ClinicalTrials.gov number, NCT03600818.).
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Affiliation(s)
- Robert F Spiera
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Sebastian Unizony
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Kenneth J Warrington
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Jennifer Sloane
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Angeliki Giannelou
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Michael C Nivens
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Bolanle Akinlade
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Wanling Wong
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Rafia Bhore
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Yong Lin
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Frank Buttgereit
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Valerie Devauchelle-Pensec
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Andrea Rubbert-Roth
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - George D Yancopoulos
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Frederic Marrache
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Naimish Patel
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
| | - Bhaskar Dasgupta
- From the Hospital for Special Surgery, Weill Cornell Medical College, New York (R.F.S.), and Regeneron Pharmaceuticals, Tarrytown (A.G., M.C.N., B.A., R.B., G.D.Y.) - both in New York; the Vasculitis and Glomerulonephritis Center, Massachusetts General Hospital, Harvard Medical School, Boston (S.U.), and Sanofi, Cambridge (J.S., N.P.) - both in Massachusetts; the Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN (K.J.W.); Sanofi, Bridgewater, NJ (W.W., Y.L.); the Department of Rheumatology and Clinical Immunology, Charité University Medicine, Berlin (F.B.); CHRU de Brest, Service de Rhumatologie, Brest (V.D.-P.), and Sanofi, Chilly-Mazarin (F.M.) - both in France; the Division of Rheumatology and Immunology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland (A.R.-R.); and Anglia Ruskin University, Cambridge, United Kingdom (B.D.)
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Moura MC, Thompson GE, Nelson DR, Fussner LA, Hummel AM, Jenne DE, Emerling D, Fervenza FC, Kallenberg CGM, Langford CA, McCune WJ, Merkel PA, Monach PA, Seo P, Spiera RF, St. Clair EW, Ytterberg SR, Stone JH, Robinson WH, Specks U. Activation of a Latent Epitope Causing Differential Binding of Antineutrophil Cytoplasmic Antibodies to Proteinase 3. Arthritis Rheumatol 2023; 75:748-759. [PMID: 36515151 PMCID: PMC10191989 DOI: 10.1002/art.42418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 11/17/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Proteinase 3 (PR3) is the major antigen for antineutrophil cytoplasmic antibodies (ANCAs) in the systemic autoimmune vasculitis, granulomatosis with polyangiitis (GPA). PR3-targeting ANCAs (PR3-ANCAs) recognize different epitopes on PR3. This study was undertaken to study the effect of mutations on PR3 antigenicity. METHODS The recombinant PR3 variants, iPR3 (clinically used to detect PR3-ANCAs) and iHm5 (containing 3 point mutations in epitopes 1 and 5 generated for epitope mapping studies) immunoassays and serum samples from patients enrolled in ANCA-associated vasculitis (AAV) trials were used to screen for differential PR3-ANCA binding. A patient-derived monoclonal ANCA 518 (moANCA518) that selectively binds to iHm5 within the mutation-free epitope 3 and is distant from the point mutations of iHm5 was used as a gauge for remote epitope activation. Selective binding was determined using inhibition experiments. RESULTS Rather than reduced binding of PR3-ANCAs to iHm5, we found substantially increased binding of the majority of PR3-ANCAs to iHm5 compared to iPR3. This differential binding of PR3-ANCA to iHm5 is similar to the selective moANCA518 binding to iHm5. Binding of iPR3 to monoclonal antibody MCPR3-2 also induced recognition by moANCA518. CONCLUSION The preferential binding of PR3-ANCAs from patients, such as the selective binding of moANCA518 to iHm5, is conferred by increased antigenicity of epitope 3 on iHm5. This can also be induced on iPR3 when captured by monoclonal antibody MCPR2. This previously unrecognized characteristic of PR3-ANCA interactions with its target antigen has implications for studying antibody-mediated autoimmune diseases, understanding variable performance characteristics of immunoassays, and design of potential novel treatment approaches.
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Affiliation(s)
- Marta Casal Moura
- Mayo Clinic and Foundation, Rochester, MN, USA
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | | | | | - Lynn A. Fussner
- Mayo Clinic and Foundation, Rochester, MN, USA
- Ohio State University, Columbus, OH, USA
| | | | - Dieter E. Jenne
- Max-Planck-Institute for Biological Intelligence, 82152 Martinsried, Germany
| | | | | | | | | | | | | | - Paul A. Monach
- VA Boston Healthcare System, Rheumatology, Boston, MA, USA
| | - Philip Seo
- Johns Hopkins University, Baltimore, MD, USA
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Berti A, Hillion S, Konig MF, Moura MC, Hummel AM, Carmona E, Peikert T, Fervenza FC, Kallenberg CGM, Langford CA, Merkel PA, Monach PA, Seo P, Spiera RF, Brunetta P, Clair EW, Harris KM, Stone JH, Grandi G, Pers JO, Specks U, Cornec D. Autoreactive Plasmablasts After B Cell Depletion With Rituximab and Relapses in Antineutrophil Cytoplasmic Antibody-Associated Vasculitis. Arthritis Rheumatol 2023; 75:736-747. [PMID: 36281741 PMCID: PMC10280646 DOI: 10.1002/art.42388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/04/2022] [Accepted: 10/11/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Autoreactive B cells are responsible for antineutrophil cytoplasmic antibody (ANCA) production in ANCA-associated vasculitis (AAV). Rituximab (RTX) depletes circulating B cells, including autoreactive B cells. We aimed to evaluate changes and associations with relapse of the circulating autoreactive B cell pool following therapeutic B cell depletion in AAV. METHODS Sequential flow cytometry was performed on 148 samples of peripheral blood mononuclear cells from 23 patients with proteinase 3 (PR3)-ANCA-positive AAV who were treated with RTX for remission induction and monitored after stopping therapy during long-term follow-up in a prospective clinical trial. PR3 was used as a ligand to target autoreactive PR3-specific (PR3+) B cells. B cell recurrence was considered as the first blood sample with ≥10 B cells/μl after RTX treatment. RESULTS At B cell recurrence, PR3+ B cell frequency among B cells was higher than baseline (P < 0.01). Within both PR3+ and total B cells, frequencies of transitional and naive subsets were higher at B cell recurrence than at baseline, while memory subsets were lower (P < 0.001 for all comparisons). At B cell recurrence, frequencies of B cells and subsets did not differ between patients who experienced relapse and patients who remained in remission. In contrast, the plasmablast frequency within the PR3+ B cell pool was higher in patients who experienced relapse and associated with a shorter time to relapse. Frequencies of PR3+ plasmablasts higher than baseline were more likely to be found in patients who experienced relapse within the following 12 months compared to those in sustained remission (P < 0.05). CONCLUSION The composition of the autoreactive B cell pool varies significantly following RTX treatment in AAV, and early plasmablast enrichment within the autoreactive pool is associated with future relapses.
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Affiliation(s)
- Alvise Berti
- Division of Pulmonary & Critical Care Medicine, Thoracic Disease Research Unit, Mayo Clinic, Rochester, Minnesota, and Center for Medical Sciences (CISMed), Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Italy, and Rheumatology Unit, Santa Chiara Hospital, APSS Trento, Italy
| | - Sophie Hillion
- Jacques-Olivier Pers, DDS, PhD, Divi Cornec, MD, PhD: Université de Bretagne Occidendale, Brest, Bretagne, France
| | - Maximilian F. Konig
- Division of Rheumatology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Marta Casal Moura
- Division of Pulmonary & Critical Care Medicine, Thoracic Disease Research Unit, Mayo Clinic, Rochester, Minnesota
| | - Amber M. Hummel
- Division of Pulmonary & Critical Care Medicine, Thoracic Disease Research Unit, Mayo Clinic, Rochester, Minnesota
| | - Eva Carmona
- Division of Pulmonary & Critical Care Medicine, Thoracic Disease Research Unit, Mayo Clinic, Rochester, Minnesota
| | - Tobias Peikert
- Division of Pulmonary & Critical Care Medicine, Thoracic Disease Research Unit, Mayo Clinic, Rochester, Minnesota
| | | | - Cees G. M. Kallenberg
- Department of Rheumatology and Clinical Immunology, University of Groningen, Groningen, The Netherlands
| | | | - Peter A. Merkel
- Division of Rheumatology, Department of Medicine, and Department of Biostatistics, Epidemiology, and Informatics, Division of Clinical Epidemiology, University of Pennsylvania, Philadelphia
| | | | - Philip Seo
- Division of Rheumatology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Robert F. Spiera
- Weill Cornell Medical College, Hospital for Special Surgery, New York
| | | | | | | | - John H. Stone
- Massachusetts General Hospital Rheumatology Unit, Boston
| | - Guido Grandi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Italy
| | - Jacques-Olivier Pers
- Jacques-Olivier Pers, DDS, PhD, Divi Cornec, MD, PhD: Université de Bretagne Occidendale, Brest, Bretagne, France
| | - Ulrich Specks
- Division of Pulmonary & Critical Care Medicine, Thoracic Disease Research Unit, Mayo Clinic, Rochester, Minnesota
| | - Divi Cornec
- Jacques-Olivier Pers, DDS, PhD, Divi Cornec, MD, PhD: Université de Bretagne Occidendale, Brest, Bretagne, France
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Casal Moura M, Deng Z, Brooks SR, Tew W, Fervenza FC, Kallenberg CGM, Langford CA, Merkel PA, Monach PA, Seo P, Spiera RF, St Clair EW, Stone JH, Prunotto M, Grayson PC, Specks U. Risk of relapse of ANCA-associated vasculitis among patients homozygous for the proteinase 3 gene Val119Ile polymorphism. RMD Open 2023; 9:e002935. [PMID: 36990659 PMCID: PMC10069578 DOI: 10.1136/rmdopen-2022-002935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/15/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND The frequency of proteinase 3 gene (PRTN3) polymorphisms in patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is not fully characterised. We hypothesise that the presence of a PRTN3 gene polymorphism (single nucleotide polymorphism (SNP) rs351111) is relevant for clinical outcomes. METHODS DNA variant calling for SNP rs351111 (chr.19:844020, c.355G>A) in PRTN3 gene assessed the allelic frequency in patients with PR3-AAV included in the Rituximab in ANCA-Associated Vasculitis trial. This was followed by RNA-seq variant calling to characterise the mRNA expression. We compared clinical outcomes between patients homozygous for PRTN3-Ile119 or PRTN3-Val119. RESULTS Whole blood samples for DNA calling were available in 188 patients. 75 patients with PR3-AAV had the allelic variant: 62 heterozygous PRTN3-Val119Ile and 13 homozygous for PRTN3-Ile119. RNA-seq was available for 89 patients and mRNA corresponding to the allelic variant was found in 32 patients with PR3-AAV: 25 heterozygous PRTN3-Val119Ile and 7 homozygous for PRTN3-Ile119. The agreement between the DNA calling results and mRNA expression of the 86 patients analysed by both methods was 100%. We compared the clinical outcomes of 64 patients with PR3-AAV: 51 homozygous for PRTN3-Val119 and 13 homozygous for PRTN3-Ile119. The frequency of severe flares at 18 months in homozygous PRTN3-Ile119 was significantly higher when compared with homozygous PRTN3-Val119 (46.2% vs 19.6%, p=0.048). Multivariate analysis identified homozygous PR3-Ile119 as main predictor of severe relapse (HR 4.67, 95% CI 1.16 to 18.86, p=0.030). CONCLUSION In patients with PR3-AAV, homozygosity for PRTN3-Val119Ile polymorphism appears associated with higher frequency of severe relapse. Further studies are necessary to better understand the association of this observation with the risk of severe relapse.
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Affiliation(s)
- Marta Casal Moura
- Pulmonary and Critical Care Medicine, Mayo Foundation for Medical Education and Research, Rochester, Minnesota, USA
- Biomedicina, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Zuoming Deng
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, Maryland, USA
| | - Stephen R Brooks
- Office of Science and Technology, Biodata Mining and Discovery Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, Maryland, USA
| | - Wei Tew
- ITGR Diagnostics Discovery, Genentech Inc, South San Francisco, California, USA
| | - Fernando C Fervenza
- Nephrology and Hypertension, Mayo Foundation for Medical Education and Research, Rochester, Minnesota, USA
| | - Cees G M Kallenberg
- Rheumatology and Clinical Immunology, University of Groningen, Groningen, The Netherlands
| | - Carol A Langford
- Rheumatic and Immunologic Disease, Cleveland Clinic, Cleveland, Ohio, USA
| | - Peter A Merkel
- Division of Rheumatology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Paul A Monach
- Department of Medicine, VA Boston Healthcare System, West Roxbury, Massachusetts, USA
| | - Philip Seo
- Rheumatology, Johns Hopkins, Baltimore, Maryland, USA
| | - Robert F Spiera
- Department of Medicine, Hospital for Special Surgery, New York, New York, USA
| | | | - John H Stone
- Vasculitis and Glomerulonephritis Center, Rheumatology, Immunology and Allergy Division, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Marco Prunotto
- School of Pharmaceutical Sciences, University of Geneva, Geneve, Switzerland
| | - Peter C Grayson
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, Maryland, USA
| | - Ulrich Specks
- Pulmonary and Critical Care Medicine, Mayo Foundation for Medical Education and Research, Rochester, Minnesota, USA
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5
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Chaudhary V, Ah Kioon MD, Hwang SM, Mishra B, Lakin K, Kirou KA, Zhang-Sun J, Wiseman RL, Spiera RF, Crow MK, Gordon JK, Cubillos-Ruiz JR, Barrat FJ. Chronic activation of pDCs in autoimmunity is linked to dysregulated ER stress and metabolic responses. J Exp Med 2022; 219:e20221085. [PMID: 36053251 PMCID: PMC9441715 DOI: 10.1084/jem.20221085] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/04/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) chronically produce type I interferon (IFN-I) in autoimmune diseases, including systemic sclerosis (SSc) and systemic lupus erythematosus (SLE). We report that the IRE1α-XBP1 branch of the unfolded protein response (UPR) inhibits IFN-α production by TLR7- or TLR9-activated pDCs. In SSc patients, UPR gene expression was reduced in pDCs, which inversely correlated with IFN-I-stimulated gene expression. CXCL4, a chemokine highly secreted in SSc patients, downregulated IRE1α-XBP1-controlled genes and promoted IFN-α production by pDCs. Mechanistically, IRE1α-XBP1 activation rewired glycolysis to serine biosynthesis by inducing phosphoglycerate dehydrogenase (PHGDH) expression. This process reduced pyruvate access to the tricarboxylic acid (TCA) cycle and blunted mitochondrial ATP generation, which are essential for pDC IFN-I responses. Notably, PHGDH expression was reduced in pDCs from patients with SSc and SLE, and pharmacological blockade of TCA cycle reactions inhibited IFN-I responses in pDCs from these patients. Hence, modulating the IRE1α-XBP1-PHGDH axis may represent a hitherto unexplored strategy for alleviating chronic pDC activation in autoimmune disorders.
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Affiliation(s)
- Vidyanath Chaudhary
- HSS Research Institute and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
- Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, NY
| | - Marie Dominique Ah Kioon
- HSS Research Institute and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
| | - Sung-Min Hwang
- Sandra and Edward Meyer Cancer Center and Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY
| | - Bikash Mishra
- HSS Research Institute and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
- Immunology and Microbial Pathogenesis Program, Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY
| | - Kimberly Lakin
- Department of Medicine, Division of Rheumatology and Scleroderma and Vasculitis Center, Hospital for Special Surgery, New York, NY
| | - Kyriakos A. Kirou
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, NY
| | - Jeffrey Zhang-Sun
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, NY
| | - R. Luke Wiseman
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA
| | - Robert F. Spiera
- Department of Medicine, Division of Rheumatology and Scleroderma and Vasculitis Center, Hospital for Special Surgery, New York, NY
| | - Mary K. Crow
- HSS Research Institute and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Jessica K. Gordon
- Department of Medicine, Division of Rheumatology and Scleroderma and Vasculitis Center, Hospital for Special Surgery, New York, NY
| | - Juan R. Cubillos-Ruiz
- Sandra and Edward Meyer Cancer Center and Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY
- Immunology and Microbial Pathogenesis Program, Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY
| | - Franck J. Barrat
- HSS Research Institute and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY
- Immunology and Microbial Pathogenesis Program, Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY
- Department of Microbiology and Immunology, Weill Cornell Medical College of Cornell University, New York, NY
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6
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Sattui SE, Jannat-Khah D, Lally L, Lieber SB, Mandl LA, Spiera RF. Prevalence of frailty in patients with polymyalgia rheumatica and association with health-related quality of life, cognition and sarcopenia. Rheumatology (Oxford) 2022; 61:4455-4464. [PMID: 35136992 PMCID: PMC9629413 DOI: 10.1093/rheumatology/keac050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 01/17/2022] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To describe the prevalence of frailty in a single-centre cohort of patients with PMR and describe its association with health-related quality of life (HRQoL), cognition and sarcopenia. METHODS This was a cross-sectional study of patients with PMR, according to 2012 EULAR/ACR Classification Criteria, presenting within 12 months of diagnosis and on treatment with glucocorticoids. Frailty was defined according to the Fried frailty criteria. HRQoL was assessed using Patient-Reported Outcomes Measurement Information System Computerized Adaptive Test (PROMIS-CAT) and cognition was assessed using the Mini-Mental State Examination. Sarcopenia was measured by DXA. RESULTS Forty-one patients were enrolled. Prevalence of frailty and pre-frailty was 17% and 59%, respectively. Frail patients had higher inflammatory markers at diagnosis compared with pre-frail and robust patients. Of 27 patients with DXA results, 26% were sarcopenic. Frail patients had worse physical function, and more pain behaviour and interference compared with pre-frail and robust patients. In univariable analyses, frail patients were more likely to have worse physical function, and more pain behaviour and pain interference, which remained significant after adjusting for age. There were no significant associations between cognition or sarcopenia and frailty. CONCLUSIONS In this cohort of PMR patients, there was a higher prevalence of frailty and pre-frailty compared with that reported in community-dwelling elderly. Frailty was associated with worse physical function, and increased pain behaviour and pain interference, differences that were also clinically meaningful. Larger prospective studies are needed to confirm these findings and analyse the association of frailty with other PMR disease outcomes.
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Affiliation(s)
- Sebastian E Sattui
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, NY
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Deanna Jannat-Khah
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Lindsay Lally
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Sarah B Lieber
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Lisa A Mandl
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Robert F Spiera
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
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7
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Becetti K, Nguyen JT, Kwakkenbos L, Carrier ME, Tao L, Gordon JK, Mancuso CA, Welling J, Mouthon L, Bartlett SJ, Malcarne VL, Thombs BD, Spiera RF. Mental Health Care Use and Associated Factors in Systemic Sclerosis: A Scleroderma Patient-Centered Intervention Network Cohort Study. ACR Open Rheumatol 2022; 4:647-657. [PMID: 35603782 PMCID: PMC9374049 DOI: 10.1002/acr2.11439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 02/28/2022] [Indexed: 11/15/2022] Open
Abstract
Objective Systemic sclerosis (SSc) has significant psychosocial implications. We aimed to evaluate the proportion of participants in a large international SSc cohort who used mental health services in a 3‐month period and to evaluate demographic, psychological, and disease‐specific factors associated with use. Methods Baseline data of participants enrolled in the Scleroderma Patient‐Centered Intervention Network Cohort were analyzed. We determined the proportion that used mental health services and the source of services in the 3 months prior to enrollment. Multivariable logistic regression was used to identify variables associated with service use. Results Of the 2319 participants included in the analysis, 417 (18%) used mental health services in the 3 months prior to enrollment. General practitioners were the most common mental health service providers (59%), followed by psychologists (25%) and psychiatrists (19%). In multivariable analysis, mental health service use was independently associated with higher education (odds ratio [OR] 1.07, 95% confidence interval [CI] 1.03‐1.11), smoking (OR 1.06, 95% CI 1.02‐1.11), being retired (OR 0.60, 95% CI 0.38‐0.93), having limited SSc (OR 1.39, 95% CI 1.02‐1.89), and having higher anxiety symptom scores (OR 1.04, 95% CI 1.03‐1.06) and lower self‐efficacy scores (OR 0.90, 95% CI 0.83‐0.97). Variables not significantly associated included age, race, disease manifestations, depression symptom scores, and body image distress. Conclusion About 18% of participants in a large international cohort received mental health services in a 3‐month period, of whom the majority received these services from a general practitioner.
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Affiliation(s)
| | | | - Linda Kwakkenbos
- Behavioural Science Institute, Radboud University, Nijmegen, the Netherlands
| | - Marie-Eve Carrier
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | - Lydia Tao
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada
| | | | | | - Joep Welling
- Dutch Patient Organization for Systemic Autoimmune Diseases, Utrecht, the Netherlands, and Federation of European Scleroderma Associations, Brussels, Belgium
| | - Luc Mouthon
- Université Paris Descartes, Assistance Publique-Hôpitaux de Paris, and Hôpital Cochin, Paris, France
| | - Susan J Bartlett
- McGill University and McGill University Health Center Research Institute, Montreal, Quebec, Canada
| | | | - Brett D Thombs
- Lady Davis Institute for Medical Research, Jewish General Hospital and McGill University, Montreal, Quebec, Canada
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8
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Lally L, Narula N, Goodfellow N, Luqmani R, Pisapia D, Spiera RF. Rho Kinase Expression in Giant Cell Arteritis: Validating pERM Intensity Score to Increase Sensitivity of Temporal Artery Biopsy. J Rheumatol 2022; 49:908-912. [DOI: 10.3899/jrheum.220012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2022] [Indexed: 11/22/2022]
Abstract
Objective Aberrant rho-kinase (ROCK) activity is implicated in several vascular and immunologic disorders. We previously demonstrated increased ROCK activity in histopathologically negative temporal artery biopsies (TAB) in subjects with clinical Giant Cell Arteritis (GCA) compared to those without GCA. This current study aimed to examine ROCK activity in a larger cohort of biopsy-negative GCA subjects and to validate the prior findings. Methods Subjects were categorized into 2 groups based on clinical data 6-months after TAB: biopsy-negative GCA and controls without GCA. Paraffin-embedded TAB were stained for phosphorylated ezrin/radixin/moesin (pERM), a surrogate of ROCK activity, and scored by two pathologists blinded to clinical diagnosis using a previously derived scoring system measuring staining intensity in three areas of the vessel Results 36 subjects with biopsy-negative GCA and 43 controls were analyzed. The mean pERM intensity score in non-GCA subjects was 3.9 – 1.4 (compared to 5.0 – 1.4 in those with GCA, p = 0.002). Using the predetermined cut-off of 4 to define high pERM intensity, subjects with GCA were significantly more likely to have a high pERM intensity score compared to non-GCA, OR 3.67, 95%CI :1.19,11.36; p= 0.019. The sensitivity of high pERM intensity score for diagnosis of GCA in histologically negative TAB was 86%, 95%CI: 70,95. Conclusion In this well-characterized cohort, those with biopsy-negative GCA had significantly higher pERM intensity scores compared to subjects without GCA. pERM staining has diagnostic significance in enhancing the sensitivity of TAB, and may help to define the clinically important group of biopsynegative GCA.
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9
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Gordon JK, Showalter K, Wu Y, Kwakkenbos L, Carrier ME, Henry RS, Østbø N, Nordlund J, Bourgeault A, Cañedo-Ayala M, Carboni-Jiménez A, Denton CP, Mouthon L, Thombs BD, Spiera RF. Systemic sclerosis and COVID-19 vaccines: a SPIN Cohort study. The Lancet Rheumatology 2022; 4:e243-e246. [PMID: 35072109 PMCID: PMC8765760 DOI: 10.1016/s2665-9913(21)00416-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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10
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Berti A, Hillion S, Hummel AM, Son YM, Chriti N, Peikert T, Carmona EM, Abdulahad WH, Heeringa P, Harris KM, St Clair EW, Brunetta P, Fervenza FC, Langford CA, Kallenberg CG, Merkel PA, Monach PA, Seo P, Spiera RF, Stone JH, Grandi G, Sun J, Pers JO, Specks U, Cornec D. Circulating autoreactive proteinase 3+ B cells and tolerance checkpoints in ANCA-associated vasculitis. JCI Insight 2021; 6:150999. [PMID: 34618687 PMCID: PMC8663783 DOI: 10.1172/jci.insight.150999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 10/06/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Little is known about the autoreactive B cells in antineutrophil cytoplasmic antibody–associated (ANCA-associated) vasculitis (AAV). We aimed to investigate tolerance checkpoints of circulating antigen-specific proteinase 3–reactive (PR3+) B cells. METHODS Multicolor flow cytometry in combination with bioinformatics and functional in vitro studies were performed on baseline samples of PBMCs from 154 well-characterized participants of the RAVE trial (NCT00104299) with severely active PR3-AAV and myeloperoxidase-AAV (MPO-AAV) and 27 healthy controls (HCs). Clinical data and outcomes from the trial were correlated with PR3+ B cells (total and subsets). RESULTS The frequency of PR3+ B cells among circulating B cells was higher in participants with PR3-AAV (4.77% median [IQR, 3.98%–6.01%]) than in participants with MPO-AAV (3.16% median [IQR, 2.51%–5.22%]) and participants with AAV compared with HCs (1.67% median [IQR, 1.27%–2.16%], P < 0.001 for all comparisons), implying a defective central tolerance checkpoint in patients with AAV. Only PBMCs from participants with PR3-AAV contained PR3+ B cells capable of secreting PR3-ANCA IgG in vitro, proving they were functionally distinct from those of participants with MPO-AAV and HCs. Unsupervised clustering identified subtle subsets of atypical autoreactive PR3+ memory B cells accumulating through the maturation process in patients with PR3-AAV. PR3+ B cells were enriched in the memory B cell compartment of participants with PR3-AAV and were associated with higher serum CXCL13 levels, suggesting an increased germinal center activity. PR3+ B cells correlated with systemic inflammation (C-reactive protein and erythrocyte sedimentation rate, P < 0.05) and complete remission (P < 0.001). CONCLUSION This study suggests the presence of defective central antigen-independent and peripheral antigen-dependent checkpoints in patients with PR3-AAV, elucidating the selection process of autoreactive B cells. Trial registration ClinicalTrials.gov NCT00104299. Funding The Vasculitis Foundation, the National Institute of Allergy and Infectious Diseases of the NIH, and the Mayo Foundation for Education and Research.
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Affiliation(s)
- Alvise Berti
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Rheumatology Unit, S. Chiara Regional Hospital and Department of CIBIO, University of Trento, Trento, Italy
| | - Sophie Hillion
- INSERM UMR1227, Lymphocytes B et Autoimmunité, University of Brest, CHRU Brest, Brest, France
| | - Amber M Hummel
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Young Min Son
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA
| | - Nedra Chriti
- INSERM UMR1227, Lymphocytes B et Autoimmunité, University of Brest, CHRU Brest, Brest, France
| | - Tobias Peikert
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Eva M Carmona
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA
| | - Wayel H Abdulahad
- Department of Rheumatology and Clinical Immunology and Department of Pathology and Medical Biology, University of Groningen, Groningen, Netherlands
| | - Peter Heeringa
- Department of Rheumatology and Clinical Immunology and Department of Pathology and Medical Biology, University of Groningen, Groningen, Netherlands
| | | | - E William St Clair
- Division of Rheumatology, Duke University Medical Center, Durham, North Carolina, USA
| | - Paul Brunetta
- Genentech Inc., South San Francisco, California, USA
| | - Fernando C Fervenza
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | - Carol A Langford
- Center for Vasculitis Care and Research, Department of Rheumatic and Immunologic Diseases, Cleveland Clinic, Cleveland, Ohio, USA
| | - Cees Gm Kallenberg
- Department of Rheumatology and Clinical Immunology and Department of Pathology and Medical Biology, University of Groningen, Groningen, Netherlands
| | - Peter A Merkel
- Division of Rheumatology, Department of Medicine, Division of Clinical Epidemiology, Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Paul A Monach
- Brigham and Women's Hospital and VA Boston Healthcare System, Boston Massachusetts, USA
| | - Philip Seo
- Division of Rheumatology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Robert F Spiera
- Vasculitis & Scleroderma Program, Hospital for Special Surgery, New York, New York, USA
| | - John H Stone
- Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Guido Grandi
- Rheumatology Unit, S. Chiara Regional Hospital and Department of CIBIO, University of Trento, Trento, Italy
| | - Jie Sun
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Immunology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jacques-Olivier Pers
- INSERM UMR1227, Lymphocytes B et Autoimmunité, University of Brest, CHRU Brest, Brest, France
| | - Ulrich Specks
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Divi Cornec
- Thoracic Disease Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota, USA.,INSERM UMR1227, Lymphocytes B et Autoimmunité, University of Brest, CHRU Brest, Brest, France
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11
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Doubelt I, Cuthbertson D, Carette S, Chung SA, Forbess LJ, Khalidi NA, Koening CL, Langford C, McAlear CA, Moreland LW, Monach PA, Seo P, Specks U, Spiera RF, Springer JM, Sreih AG, Warrington KJ, Merkel PA, Pagnoux C. Clinical Manifestations and Long-Term Outcomes of Eosinophilic Granulomatosis With Polyangiitis in North America. ACR Open Rheumatol 2021; 3:404-412. [PMID: 34032390 PMCID: PMC8207688 DOI: 10.1002/acr2.11263] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/29/2021] [Indexed: 11/08/2022] Open
Abstract
Objective To describe clinical manifestations and outcomes in patients with eosinophilic granulomatosis with polyangiitis (EGPA) in North America. Methods Analysis of patients aged 18 years or older who fulfilled the 1990 American College of Rheumatology Classification Criteria for EGPA enrolled in the Vasculitis Clinical Research Consortium from 2003 to 2019. Main clinical characteristics, treatments, outcomes, and accumulated damage were studied. Results The cohort included 354 patients; 59% female; age at diagnosis of 50.0 (±14) years; 39% were antineutrophil cytoplasm antibody (ANCA) positive. Time from diagnosis to last follow‐up was 7.0 (±6.2) years; 49.4% had one or more relapse. Patients positive for ANCA more commonly had neurological and kidney involvement when compared with patients negative for ANCA, who had more cardiac and lung manifestations. At last study visit, only 35 (12.6%) patients had been off all therapy for more than 2 years during their follow‐up. The overall mortality rate was 4.0% and did not differ by ANCA status or cyclophosphamide use. Scores on the Vasculitis Damage Index (VDI) for 134 patients with two or more visits and more than 1 year of follow‐up increased from 1.7 (±1.8) at enrollment (3.7 [±5.1] years after diagnosis) to 3.35 (±2.1) at last follow‐up (7.5 [±5.8] years after diagnosis), mainly represented by chronic asthma (67.5%), peripheral neuropathy (49.6%), and chronic sinusitis (31.3%). Longer duration of glucocorticoid use and relapse were associated with higher VDI scores. Conclusion This analysis describes the many clinical manifestations and varied outcomes of EGPA and highlights the ongoing need to attain more sustained, long‐term remission to limit the accrual of disease‐related damage.
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Affiliation(s)
- Irena Doubelt
- Vasculitis Clinic, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | | | - Simon Carette
- Vasculitis Clinic, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | | | - Lindsy J Forbess
- Cedars Sinai Medical Center, Los Angeles, California, United States
| | - Nader A Khalidi
- McMaster University and St. Joseph's Healthcare, Hamilton, Ontario, Canada
| | | | | | | | - Larry W Moreland
- University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Paul A Monach
- Division of Rheumatology, Veterans Affairs Boston Healthcare System, Boston, Massachusetts, United States
| | - Philip Seo
- Johns Hopkins University, Baltimore, Maryland, United States
| | - Ulrich Specks
- Mayo Clinic College of Medicine and Science, Rochester, Minnesota, United States
| | - Robert F Spiera
- Hospital for Special Surgery, New York, New York, United States
| | | | | | - Kenneth J Warrington
- Mayo Clinic College of Medicine and Science, Rochester, Minnesota, United States
| | | | - Christian Pagnoux
- Vasculitis Clinic, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
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12
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Merkel PA, Niles J, Jimenez R, Spiera RF, Rovin BH, Bomback A, Pagnoux C, Potarca A, Schall TJ, Bekker P. Adjunctive Treatment With Avacopan, an Oral C5a Receptor Inhibitor, in Patients With Antineutrophil Cytoplasmic Antibody-Associated Vasculitis. ACR Open Rheumatol 2020; 2:662-671. [PMID: 33128347 PMCID: PMC7672305 DOI: 10.1002/acr2.11185] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/01/2020] [Indexed: 01/05/2023] Open
Abstract
Objective This study aimed to evaluate the safety of avacopan, an orally administered C5a receptor inhibitor, for the treatment of antineutrophil cytoplasmic antibody (ANCA)–associated vasculitis in addition to standard‐of‐care (SOC) treatment with glucocorticoids with cyclophosphamide or rituximab. Methods In this randomized 12‐week study, twice daily avacopan (10 mg or 30 mg) plus SOC was assessed versus SOC only in patients with newly diagnosed/relapsing ANCA‐associated vasculitis. Efficacy measurements included 50% or greater reduction in Birmingham Vasculitis Activity Score (BVAS) at day 85, rapid reduction (day 29) of BVAS to a score of 0 that was sustained through day 85, change in Vasculitis Damage Index (VDI), renal response (improvement in estimated glomerular filtration rate [eGFR], hematuria, and albuminuria), and health‐related quality of life (HRQoL). Results Forty‐two patients were randomized (n = 13 SOC, n = 13 avacopan 10 mg, and n = 16 avacopan 30 mg). Serious adverse events occurred in 15% and 17% of patients receiving SOC only and patients receiving avacopan with SOC, respectively. In the intent‐to‐treat population, BVAS response was high across arms (11 of 13 SOC, 11 of 12 avacopan 10 mg, and 12 of 15 avacopan 30 mg); increases in mean VDI were greater with SOC only than with avacopan plus SOC (0.3 versus 0.1). Avacopan 30 mg was numerically superior to placebo and avacopan 10 mg in early remission (15%, 8%, and 20% for SOC only, avacopan 10 mg, and avacopan 30 mg, respectively), improved eGFR (+2.0 ml/min/1.73m2, +1.3 ml/min/1.73m2, and +6.2 ml/min/1.73m2, respectively), renal response (17%, 40%, and 63%, respectively), and measures of HRQoL. Conclusion Avacopan in addition to SOC for ANCA‐associated vasculitis was well tolerated, and at the higher study dose, it appeared to improve time to remission (ClinicalTrials.gov identifier NCT02222155).
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Affiliation(s)
| | | | | | - Robert F Spiera
- Hospital for Special Surgery, New York, New York, United States
| | | | | | | | - Antonia Potarca
- ChemoCentryx, Inc., Mountain View, California, United States
| | - Thomas J Schall
- ChemoCentryx, Inc., Mountain View, California, United States
| | - Pirow Bekker
- ChemoCentryx, Inc., Mountain View, California, United States
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13
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Thompson GE, Fussner LA, Hummel AM, Schroeder DR, Silva F, Snyder MR, Langford CA, Merkel PA, Monach PA, Seo P, Spiera RF, St Clair EW, Stone JH, Specks U. Clinical Utility of Serial Measurements of Antineutrophil Cytoplasmic Antibodies Targeting Proteinase 3 in ANCA-Associated Vasculitis. Front Immunol 2020; 11:2053. [PMID: 33013868 PMCID: PMC7495134 DOI: 10.3389/fimmu.2020.02053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/28/2020] [Indexed: 11/13/2022] Open
Abstract
Background: The utility of ANCA testing as an indicator of disease activity in ANCA-associated vasculitis (AAV) remains controversial. This study aimed to determine the association of ANCA testing by various methods and subsequent remission and examine the utility of a widely used automated addressable laser-bead immunoassay (ALBIA) to predict disease relapses. Methods: Data from the Rituximab vs. Cyclophosphamide for ANCA-Associated Vasculitis (RAVE) trial were used. ANCA testing was performed by direct ELISA, capture ELISA, and ALBIA. Cox proportional hazards regression models were used to evaluate the association of PR3-ANCA level and subsequent remission or relapse. The ALBIA results are routinely reported as >8 when the value is high. For this study, samples were further titrated. A decrease and increase in PR3-ANCA were defined as a halving or doubling in value, respectively. Results: A decrease in ANCA by ALBIA at 2 months was associated with shorter time to sustained remission (HR 4.52, p = 0.035). A decrease in ANCA by direct ELISA at 4 months was associated with decreased time to sustained remission (HR 1.77, p = 0.050). There were no other associations between ANCA decreases or negativity and time to remission. An increase in PR3-ANCA by ALBIA was found in 78 of 93 subjects (84%). Eleven (14%) had a PR3-ANCA value which required titration for detection of an increase. An increase of ANCA by ALBIA was associated with severe relapse across various subgroups. Conclusions: A decrease in ANCA by ALBIA at 2 months and by direct ELISA at 4 months may be predictive of subsequent remission. These results should be confirmed in a separate cohort with similarly protocolized sample and clinical data collection. A routinely used automated ALBIA for PR3-ANCA measurement is comparable to direct ELISA in predicting relapse in PR3-AAV. Without titration, 14% of the increases detected by ALBIA would have been missed. Titration is recommended when this assay is used for disease monitoring. The association of an increase in PR3-ANCA with the risk of subsequent relapse remains complex and is affected by disease phenotype and remission induction agent.
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Affiliation(s)
- Gwen E Thompson
- Essentia Health, Division of Pulmonary and Critical Care, Fargo, ND, United States.,Mayo Clinic and Mayo Foundation for Research and Education, Rochester, MN, United States
| | - Lynn A Fussner
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University, Columbus, OH, United States
| | - Amber M Hummel
- Mayo Clinic and Mayo Foundation for Research and Education, Rochester, MN, United States
| | - Darrell R Schroeder
- Mayo Clinic and Mayo Foundation for Research and Education, Rochester, MN, United States
| | - Francisco Silva
- Department of Rheumatology, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Melissa R Snyder
- Mayo Clinic and Mayo Foundation for Research and Education, Rochester, MN, United States
| | - Carol A Langford
- Cleveland Clinic, Division of Rheumatology, Cleveland, OH, United States
| | - Peter A Merkel
- Division of Rheumatology, Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Division of Clinical Epidemiology, Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, PA, United States
| | - Paul A Monach
- Division of Rheumatology, Brigham and Women's Hospital, Boston, MA, United States
| | - Philip Seo
- Division of Rheumatology, Johns Hopkins University, Baltimore, MD, United States
| | - Robert F Spiera
- Division of Rheumatology, Hospital for Special Surgery, New York, NY, United States
| | | | - John H Stone
- Division of Rheumatology, Massachusetts General Hospital, Boston, MA, United States
| | - Ulrich Specks
- Mayo Clinic and Mayo Foundation for Research and Education, Rochester, MN, United States
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14
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Berti A, Warner R, Johnson K, Cornec D, Schroeder DR, Kabat BF, Langford CA, Kallenberg CGM, Seo P, Spiera RF, St Clair EW, Fervenza FC, Stone JH, Monach PA, Specks U, Merkel PA. The association of serum interleukin-6 levels with clinical outcomes in antineutrophil cytoplasmic antibody-associated vasculitis. J Autoimmun 2019; 105:102302. [PMID: 31320177 PMCID: PMC7217333 DOI: 10.1016/j.jaut.2019.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/04/2019] [Accepted: 07/08/2019] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To investigate serum IL-6 (sIL-6) levels during active disease, complete remission (CR), and relapse in antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV), and to explore the association of changes in sIL-6 with clinical outcomes. METHODS sIL-6 levels were measured at baseline and longitudinally over 18 months, in 78 patients with AAV enrolled in a randomized controlled trial comparing treatment with either rituximab (RTX) or cyclophosphamide (CYC)/azathioprine (AZA). Outcome variables included baseline clinical features, ANCA specificity, disease activity (active disease versus CR), time to relapse events, B cell repopulation, and ANCA titer increases. RESULTS At baseline, sIL6 levels were detectable in 81% of patients; 73% (n = 57) of subjects were proteinase 3 (PR3)-ANCA positive, sIL-6 levels were higher in subjects with PR3-ANCAs and positively correlated with their levels (rs = 0.36,p < 0.01), but not with levels of myeloperoxidase (MPO)-ANCA (rs = -0.17,p = 0.47). Higher baseline sIL-6 levels were associated with PR3-ANCA positivity, fever, pulmonary nodules/cavities, conductive deafness, and absence of urinary red blood cell casts (p < 0.05). Baseline sIL6 levels did not predict CR at month 6 (p = 0.71), and the median sIL-6 level declined from baseline with induction therapy, regardless of CR achievement. An increase in sIL-6 during CR was a predictor for subsequent severe relapse in RTX-treated patients (hazard ratio (HR):7.24,p = 0.01), but not in CYC/AZA-treated patients (HR:0.62,p = 0.50). In contrast, a sIL-6 increase did not predict B cell repopulation or ANCA titer increase in either treatment arm (p > 0.05). CONCLUSION At baseline, sIL-6 concentrations correlate with PR3-ANCA titers and are associated with specific clinical manifestations of AAV. Baseline sIL6 concentrations do not predict CR at 6 months, but the increase in sIL-6 concentrations during CR is associated with subsequent severe relapse among RTX-treated patients. Further investigation into the mechanistic role of IL6 in AAV might lead to identifying this pathway as a potential therapeutic target in this disease.
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Affiliation(s)
| | - Roscoe Warner
- University of Michigan Medical School, Ann Arbor, MI, USA
| | - Kent Johnson
- University of Michigan Medical School, Ann Arbor, MI, USA
| | | | | | | | | | | | - Philip Seo
- Johns Hopkins University, Baltimore, MD, USA
| | | | | | | | | | - Paul A Monach
- Boston University and VA Boston Healthcare System, Boston, MA, USA
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15
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Abstract
Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a group of systemic necrotizing vasculitides that includes granulomatosis with polyangiitis, microscopic polyangiitis, and eosinophilic granulomatosis with polyangiitis. Treatment of these conditions has improved during the past 2 decades with better understanding of these conditions and availability of newer agents. Cyclophosphamide (CYC) was the first drug demonstrated to afford successful treatment and improvement in AAV. With the emergence of newer agents with more favorable safety profiles, CYC is no longer the cornerstone of management of AAV. This article reviews existing data for treatment and the current role of CYC in the management of AAV.
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Affiliation(s)
- Sebastian E Sattui
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
| | - Robert F Spiera
- Division of Rheumatology, Department of Medicine, Weill Cornell Medical College, Scleroderma, Vasculitis & Myositis Center, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
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16
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Becetti K, Kwakkenbos L, Carrier ME, Gordon JK, Nguyen JT, Mancuso CA, Mouthon L, Nguyen C, Rannou F, Welling J, Thombs BD, Spiera RF. Physical or Occupational Therapy Use in Systemic Sclerosis: A Scleroderma Patient-centered Intervention Network Cohort Study. J Rheumatol 2019; 46:1605-1613. [PMID: 31043542 DOI: 10.3899/jrheum.181130] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Systemic sclerosis (SSc) is characterized by significant disability because of musculoskeletal involvement. Physical and occupational therapy (PT/OT) have been suggested to improve function. However, the rate of PT/OT use has been shown to be low in SSc. We aimed to identify demographic, medical, and psychological variables associated with PT/OT use in SSc. METHODS Participants were patients with SSc enrolled in the Scleroderma Patient-centered Intervention Network (SPIN) Cohort. We determined the rate and indication of PT/OT use in the 3 months prior to enrollment. Multivariable logistic regression was used to identify variables independently associated with PT/OT use. RESULTS Of the 1627 patients with SSc included in the analysis, 23% used PT/OT in the preceding 3 months. PT/OT use was independently associated with higher education (OR 1.08, 95% CI 1.04-1.12), having moderately severe small joint contractures (OR 2.09, 95% CI 1.45-3.03), severe large joint contractures (OR 2.33, 95% CI 1.14-4.74), fewer digital ulcerations (OR 0.70, 95% CI 0.51-0.95), and higher disability (OR 1.54, 95% CI 1.18-2.02) and pain scores (OR 1.04, 95% CI 1.02-1.06). The highest rate of PT/OT use was reported in France (43%) and the lowest, in the United States (17%). CONCLUSION Despite the potential of PT/OT interventions to improve function, < 1 in 4 patients with SSc enrolled in a large international cohort used PT/OT services in the last 3 months. Patients who used PT/OT had more severe musculoskeletal manifestations and higher pain and disability.
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17
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Stone JH, Tuckwell K, Dimonaco S, Klearman M, Aringer M, Blockmans D, Brouwer E, Cid MC, Dasgupta B, Rech J, Salvarani C, Schulze-Koops H, Schett G, Spiera RF, Unizony SH, Collinson N. O26 Effects of baseline prednisone dose on remission and disease flare in patients with giant cell arteritis treated with tocilizumab in the GiACTA trial. Rheumatology (Oxford) 2019. [DOI: 10.1093/rheumatology/kez105.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- John H Stone
- Rheumatology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | | | - Sophie Dimonaco
- n/a, Roche Products Ltd., Welwyn Garden City, United Kingdom
| | | | - Martin Aringer
- Rheumatology, Medicine III, University Medical Center and Faculty of Medicine TU Dresden, Dresden, GERMANY
| | - Daniel Blockmans
- Department of Clinical and Experimental Medicine, University Hospital Gasthuisberg, Leuven, BELGIUM
| | - Elisabeth Brouwer
- University Medical Center, University of Gröningen, Gröningen, NETHERLANDS
| | - Maria C Cid
- Institut d’Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, SPAIN
| | - Bhaskar Dasgupta
- n/a, Southend University Hospital NHS Foundation Trust, Westcliff-on-Sea, United Kingdom
| | - Juergen Rech
- n/a, Universitätsklinikum Erlangen, Erlangen, GERMANY
| | - Carlo Salvarani
- Dipartimento di Medicina Interna e Specialità Mediche, IRCCS Arcispedale Santa Maria Nuova, Reggio Emilia, ITALY
| | | | - Georg Schett
- Friedrich-Alexander-Universität Erlangen, Nürnberg und Universitätsklinikum Erlangen, Erlangen, GERMANY
| | | | - Sebastian H Unizony
- Rheumatology Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Neil Collinson
- n/a, Roche Products Ltd., Welwyn Garden City, United Kingdom
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18
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Kermani TA, Diab S, Sreih AG, Cuthbertson D, Borchin R, Carette S, Forbess L, Koening CL, McAlear CA, Monach PA, Moreland L, Pagnoux C, Seo P, Spiera RF, Warrington KJ, Ytterberg SR, Langford CA, Merkel PA, Khalidi NA. Arterial lesions in giant cell arteritis: A longitudinal study. Semin Arthritis Rheum 2018; 48:707-713. [PMID: 29880442 DOI: 10.1016/j.semarthrit.2018.05.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/25/2018] [Accepted: 05/07/2018] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To evaluate large-vessel (LV) abnormalities on serial imaging in patients with giant cell arteritis (GCA) and discern predictors of new lesions. METHODS Clinical and imaging data from patients with GCA (including subjects diagnosed by LV imaging) enrolled in a prospective, multicenter, longitudinal study and/or a randomized clinical trial were included. New arterial lesions were defined as a lesion in a previously unaffected artery. RESULTS The study included 187 patients with GCA, 146 (78%) female, mean (±SD) age at diagnosis 68.5 ± 8.5 years; 39% diagnosed by LV imaging. At least one arterial lesion was present in 123 (66%) on the first study. The most frequently affected arteries were subclavian (42%), axillary (32%), and thoracic aorta (20%). In 106 patients (57%) with serial imaging, new arterial lesions were noted in 41 patients (39%), all of whom had a baseline abnormality, over a mean (±SD) follow-up of 4.39 (2.22) years. New abnormalities were observed in 33% patients by year 2; clinical features of active disease were present at only 50% of these cases. There were no differences in age, sex, temporal artery biopsy positivity, or disease activity in patients with or without new lesions. CONCLUSIONS In this cohort of patients with GCA, LV abnormalities on first imaging were common. Development of new arterial lesions occurred in patients with arterial abnormalities at first imaging, often in the absence of symptoms of active disease. Arterial imaging should be considered in all patients with GCA at diagnosis and serial imaging at least in patients with baseline abnormalities.
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Affiliation(s)
- Tanaz A Kermani
- Division of Rheumatology, University of California Los Angeles, 2020 Santa Monica Boulevard, Suite 540 Santa Monica, CA 90404.
| | - Sehriban Diab
- Division of Rheumatology, St. Joseph's Healthcare, McMaster University, Hamilton, ON, Canada
| | - Antoine G Sreih
- Division of Rheumatology, University of Pennsylvania, Philadelphia, PA
| | - David Cuthbertson
- Department of Biostatistics and Informatics, Department of Pediatrics, University of South Florida, Tampa, FL
| | - Renée Borchin
- Department of Biostatistics and Informatics, Department of Pediatrics, University of South Florida, Tampa, FL
| | - Simon Carette
- Division of Rheumatology, Mount Sinai Hospital, Toronto, ON, Canada
| | - Lindsy Forbess
- Division of Rheumatology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Curry L Koening
- Division of Rheumatology, University of Utah, Salt Lake City, UT
| | - Carol A McAlear
- Division of Rheumatology, University of Pennsylvania, Philadelphia, PA
| | - Paul A Monach
- Section of Rheumatology, Boston University School of Medicine, Boston, MA
| | - Larry Moreland
- Division of Rheumatology, University of Pittsburgh, Pittsburgh, PA
| | | | - Philip Seo
- Division of Rheumatology, Johns Hopkins University, Baltimore, MD
| | - Robert F Spiera
- Division of Rheumatology, Hospital for Special Surgery, New York, NY
| | | | - Steven R Ytterberg
- Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN
| | - Carol A Langford
- Department of Rheumatic and Immunologic Diseases, Cleveland Clinic, Lerner College of Medicine, Cleveland, OH
| | - Peter A Merkel
- Division of Rheumatology and the Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, PA
| | - Nader A Khalidi
- Division of Rheumatology, St. Joseph's Healthcare, McMaster University, Hamilton, ON, Canada
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19
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Cornec D, Kabat BF, Mills JR, Cheu M, Hummel AM, Schroeder DR, Cascino MD, Brunetta P, Murray DL, Snyder MR, Fervenza F, Hoffman GS, Kallenberg CGM, Langford CA, Merkel PA, Monach PA, Seo P, Spiera RF, St Clair EW, Stone JH, Barnidge DR, Specks U. Pharmacokinetics of rituximab and clinical outcomes in patients with anti-neutrophil cytoplasmic antibody associated vasculitis. Rheumatology (Oxford) 2018; 57:639-650. [PMID: 29340623 PMCID: PMC5888934 DOI: 10.1093/rheumatology/kex484] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 11/10/2017] [Indexed: 12/16/2022] Open
Abstract
Objectives To study the determinants of the pharmacokinetics (PK) of rituximab (RTX) in patients with ANCA-associated vasculitis (AAV) and its association with clinical outcomes. Methods This study included data from 89 patients from the RTX in AAV trial who received the full dose of RTX (four weekly infusions of 375 mg/m2). RTX was quantified at weeks 2, 4, 8, 16 and 24, and summarized by computing the trapezoidal area under the curve. We explored potential determinants of the PK-RTX, and analysed its association with clinical outcomes: achievement of remission at 6 months, duration of B-cell depletion and time to relapse in patients who achieved complete remission. Results RTX serum levels were significantly lower in males and in newly diagnosed patients, and negatively correlated with body surface area, baseline B-cell count and degree of disease activity. In multivariate analyses, the main determinants of PK-RTX were sex and new diagnosis. Patients reaching complete remission at month 6 had similar RTX levels compared with patients who did not reach complete remission. Patients with higher RTX levels generally experienced longer B-cell depletion than patients with lower levels, but RTX levels at the different time points and area under the curve were not associated with time to relapse. Conclusion Despite the body-surface-area-based dosing protocol, PK-RTX is highly variable among patients with AAV, its main determinants being sex and newly diagnosed disease. We did not observe any relevant association between PK-RTX and clinical outcomes. The monitoring of serum RTX levels does not seem clinically useful in AAV.
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Affiliation(s)
- Divi Cornec
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
- Rheumatology Department, Brest University Hospital, and INSERM U1227, Brest, France
| | - Brian F Kabat
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - John R Mills
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | - Amber M Hummel
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - David L Murray
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Melissa R Snyder
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | - Gary S Hoffman
- Division of Rheumatology, Cleveland Clinic Foundation, Cleveland, OH, USA
| | | | - Carol A Langford
- Division of Rheumatology, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Peter A Merkel
- Division of Rheumatology and Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia, PA
| | - Paul A Monach
- Rheumatology, Boston University Medical Center, Boston, MA
| | - Philip Seo
- Rheumatology, Johns Hopkins University, Baltimore, MD
| | | | | | - John H Stone
- Rheumatology, Massachusetts General Hospital, Boston, MA, USA
| | - David R Barnidge
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Ulrich Specks
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
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20
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Gordon JK, Martyanov V, Franks JM, Bernstein EJ, Szymonifka J, Magro C, Wildman HF, Wood TA, Whitfield ML, Spiera RF. Belimumab for the Treatment of Early Diffuse Systemic Sclerosis: Results of a Randomized, Double-Blind, Placebo-Controlled, Pilot Trial. Arthritis Rheumatol 2018; 70:308-316. [PMID: 29073351 PMCID: PMC6590997 DOI: 10.1002/art.40358] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 10/19/2017] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To assess the safety and efficacy of treatment with belimumab in patients with early diffuse cutaneous systemic sclerosis (dcSSc) treated with background mycophenolate mofetil (MMF). METHODS In this 52-week, investigator-initiated, single-center, double-blind, placebo-controlled, pilot study, 20 patients with dcSSc recently started on MMF were randomized 1:1 to additionally receive belimumab at 10 mg/kg intravenously or placebo. We assessed safety, efficacy, and differential gene expression. RESULTS In the belimumab group, the median modified Rodnan skin thickness score (MRSS) decreased from 27 (interquartile range [IQR] 26.5, 31) to 18 (IQR 11, 23) (P = 0.039). In the placebo group, the median MRSS decreased from 28 (IQR 22, 28) to 21 (IQR 14, 25) (P = 0.023). The median change in MRSS was -10 (IQR -13, -9) in the belimumab group and -3.0 (IQR -15, -1) in the placebo group (P = 0.411). There were no significant differences between the groups in the number of adverse events (AEs). A significant decrease in expression of B cell signaling and profibrotic genes and pathways was observed in patients with improved MRSS in the belimumab group but not in the placebo group. CONCLUSION Patients in both treatment groups experienced significant improvements in MRSS. The median difference was greater in the belimumab group but did not achieve statistical significance in this small pilot study. AEs were similar between the groups. Changes in gene expression were consistent with mechanism of action and showed that clinical response to treatment with belimumab is associated with a significant decrease in profibrotic genes and pathways. Additional studies are needed to determine the role of belimumab in the treatment of dcSSc.
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Affiliation(s)
- Jessica K. Gordon
- Jessica K. Gordon, MD, MSc, Robert F. Spiera, MD: Hospital for Special Surgery, New York, New York
| | - Viktor Martyanov
- Viktor Martyanov, PhD, Jennifer M. Franks, BS, Tammara A. Wood, MS, Michael L. Whitfield, PhD: Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Jennifer M. Franks
- Viktor Martyanov, PhD, Jennifer M. Franks, BS, Tammara A. Wood, MS, Michael L. Whitfield, PhD: Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Elana J. Bernstein
- Elana J. Bernstein, MD, MSc, Jackie Szymonifka, MA: New York Presbyterian Hospital, Columbia University, New York, New York
| | - Jackie Szymonifka
- Elana J. Bernstein, MD, MSc, Jackie Szymonifka, MA: New York Presbyterian Hospital, Columbia University, New York, New York
| | - Cynthia Magro
- Cynthia Magro, MD, Horatio F. Wildman, MD: Weill Cornell Medical College, New York, New York
| | - Horatio F. Wildman
- Cynthia Magro, MD, Horatio F. Wildman, MD: Weill Cornell Medical College, New York, New York
| | - Tammara A. Wood
- Viktor Martyanov, PhD, Jennifer M. Franks, BS, Tammara A. Wood, MS, Michael L. Whitfield, PhD: Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Michael L. Whitfield
- Viktor Martyanov, PhD, Jennifer M. Franks, BS, Tammara A. Wood, MS, Michael L. Whitfield, PhD: Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
| | - Robert F. Spiera
- Jessica K. Gordon, MD, MSc, Robert F. Spiera, MD: Hospital for Special Surgery, New York, New York
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21
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Ah Kioon MD, Tripodo C, Fernandez D, Kirou KA, Spiera RF, Crow MK, Gordon JK, Barrat FJ. Plasmacytoid dendritic cells promote systemic sclerosis with a key role for TLR8. Sci Transl Med 2018; 10:10/423/eaam8458. [PMID: 29321259 PMCID: PMC9865429 DOI: 10.1126/scitranslmed.aam8458] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 07/17/2017] [Accepted: 11/14/2017] [Indexed: 01/25/2023]
Abstract
Systemic sclerosis (SSc) is a multisystem life-threatening fibrosing disorder that lacks effective treatment. The link between the inflammation observed in organs such as the skin and profibrotic mechanisms is not well understood. The plasmacytoid dendritic cell (pDC) is a key cell type mediating Toll-like receptor (TLR)-induced inflammation in autoimmune disease patients, including lupus and skin diseases with interface dermatitis. However, the role of pDCs in fibrosis is less clear. We show that pDCs infiltrate the skin of SSc patients and are chronically activated, leading to secretion of interferon-α (IFN-α) and CXCL4, which are both hallmarks of the disease. We demonstrate that the secretion of CXCL4 is under the control of phosphatidylinositol 3-kinase δ and is due to the aberrant presence of TLR8 on pDCs of SSc patients, which is not seen in healthy donors or in lupus pDCs, and that CXCL4 primarily acts by potentiating TLR8- but also TLR9-induced IFN production by pDCs. Depleting pDCs prevented disease in a mouse model of scleroderma and could revert fibrosis in mice with established disease. In contrast, the disease was exacerbated in mice transgenic for TLR8 with recruitment of pDCs to the fibrotic skin, whereas TLR7 only partially contributed to the inflammatory response, indicating that TLR8 is the key RNA-sensing TLR involved in the establishment of fibrosis. We conclude that the pDC is an essential cell type involved in the pathogenesis of SSc and its removal using depleting antibodies or attenuating pDC function could be a novel approach to treat SSc patients.
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Affiliation(s)
- Marie Dominique Ah Kioon
- Autoimmunity and Inflammation Program, HSS Research Institute, Hospital for Special Surgery, New York, NY 10021, USA
| | - Claudio Tripodo
- Tumor Immunology Unit, Department of Health Science, Human Pathology Section, University of Palermo School of Medicine, Palermo, Italy
| | - David Fernandez
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, NY 10021, USA
| | - Kyriakos A. Kirou
- Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, NY 10021, USA
| | - Robert F. Spiera
- Scleroderma and Vasculitis Center, Hospital for Special Surgery, New York, NY 10021, USA
| | - Mary K. Crow
- Autoimmunity and Inflammation Program, HSS Research Institute, Hospital for Special Surgery, New York, NY 10021, USA.,Mary Kirkland Center for Lupus Research, Hospital for Special Surgery, New York, NY 10021, USA
| | - Jessica K. Gordon
- Scleroderma and Vasculitis Center, Hospital for Special Surgery, New York, NY 10021, USA
| | - Franck J. Barrat
- Autoimmunity and Inflammation Program, HSS Research Institute, Hospital for Special Surgery, New York, NY 10021, USA.,Corresponding author.
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22
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Fussner LA, Hummel AM, Schroeder DR, Silva F, Cartin-Ceba R, Snyder MR, Hoffman GS, Kallenberg CGM, Langford CA, Merkel PA, Monach PA, Seo P, Spiera RF, William St Clair E, Tchao NK, Stone JH, Specks U. Factors Determining the Clinical Utility of Serial Measurements of Antineutrophil Cytoplasmic Antibodies Targeting Proteinase 3. Arthritis Rheumatol 2017; 68:1700-10. [PMID: 26882078 DOI: 10.1002/art.39637] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 02/09/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Relapse following remission is common in antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV), particularly with ANCAs directed at proteinase 3 (PR3). This study was undertaken to evaluate the association of an increase in PR3-ANCA level with subsequent relapse. METHODS Data from the Rituximab versus Cyclophosphamide for ANCA-Associated Vasculitis (RAVE) trial were used. Starting from the time of achieving complete remission, serial measurements by direct and capture enzyme-linked immunosorbent assays (ELISAs) were analyzed in 93 patients with PR3-ANCA, using Cox proportional hazards regression. RESULTS An increase in PR3-ANCA level was identified in 58 of 93 subjects (62.4%) by direct ELISA and in 59 of 93 (63.4%) by capture ELISA. Relapses occurred in 55 of 93 subjects (59.1%), with 25 and 21 occurring within 1 year after an increase by direct ELISA and capture ELISA, respectively. An increase by direct ELISA was associated with subsequent severe relapses (hazard ratio [HR] 4.57; P < 0.001), particularly in patients presenting with renal involvement (HR 7.94; P < 0.001) and alveolar hemorrhage (HR 24.19; P < 0.001). Both assays identified increased risk for severe relapse in the rituximab group (HR 5.80; P = 0.002 for direct ELISA and HR 4.54; P = 0.007 for capture ELISA) but not the cyclophosphamide/azathioprine group (P = 0.103 and P = 0.197, respectively). CONCLUSION The association of an increase in PR3-ANCA level with the risk of subsequent relapse is partially affected by the PR3-ANCA detection methodology, disease phenotype, and remission induction treatment. An increase in PR3-ANCA level during complete remission conveys an increased risk of relapse, particularly severe relapse, among patients with renal involvement or alveolar hemorrhage and those treated with rituximab. Serial measurements of PR3-ANCA may be informative in this subset of patients, but the risk of relapse must be weighed carefully against the risks associated with therapy.
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Affiliation(s)
- Lynn A Fussner
- Mayo Clinic and Mayo Foundation for Medical Education and Research, Rochester, Minnesota
| | - Amber M Hummel
- Mayo Clinic and Mayo Foundation for Medical Education and Research, Rochester, Minnesota
| | - Darrell R Schroeder
- Mayo Clinic and Mayo Foundation for Medical Education and Research, Rochester, Minnesota
| | | | - Rodrigo Cartin-Ceba
- Mayo Clinic and Mayo Foundation for Medical Education and Research, Rochester, Minnesota
| | - Melissa R Snyder
- Mayo Clinic and Mayo Foundation for Medical Education and Research, Rochester, Minnesota
| | | | | | | | | | - Paul A Monach
- Boston University, Boston University Medical Center, and VA Boston Healthcare System, Boston, Massachusetts
| | - Philip Seo
- Johns Hopkins University, Baltimore, Maryland
| | | | | | | | - John H Stone
- Massachusetts General Hospital, Boston, Massachusetts
| | - Ulrich Specks
- Mayo Clinic and Mayo Foundation for Medical Education and Research, Rochester, Minnesota
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23
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Haddon DJ, Wand HE, Jarrell JA, Spiera RF, Utz PJ, Gordon JK, Chung LS. Proteomic Analysis of Sera from Individuals with Diffuse Cutaneous Systemic Sclerosis Reveals a Multianalyte Signature Associated with Clinical Improvement during Imatinib Mesylate Treatment. J Rheumatol 2017; 44:631-638. [PMID: 28298564 PMCID: PMC5860882 DOI: 10.3899/jrheum.160833] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2017] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Imatinib has been investigated for the treatment of systemic sclerosis (SSc) because of its ability to inhibit the platelet-derived growth factor receptor and transforming growth factor-β signaling pathways, which have been implicated in SSc pathogenesis. In a 12-month open-label clinical trial assessing the safety and efficacy of imatinib in the treatment of diffuse cutaneous SSc (dcSSc), significant improvements in skin thickening were observed. Here, we report our analysis of sera collected during the clinical trial. METHODS We measured the levels of 46 cytokines, chemokines, and growth factors in the sera of individuals with dcSSc using Luminex and ELISA. Autoantigen microarrays were used to measure immunoglobulin G reactivity to 28 autoantigens. Elastic net regularization was used to identify a signature that was predictive of clinical improvement (reduction in the modified Rodnan skin score ≥ 5) during treatment with imatinib. The signature was also tested using sera from a clinical trial of nilotinib, a tyrosine kinase inhibitor that is structurally related to imatinib, in dcSSc. RESULTS The elastic net algorithm identified a signature, based on levels of CD40 ligand, chemokine (C-X-C motif) ligand 4 (CXCL4), and anti-PM/Scl-100, that was significantly higher in individuals who experienced clinical improvement than in those who did not (p = 0.0011). The signature was validated using samples from a clinical trial of nilotinib. CONCLUSION Identification of patients with SSc with the greatest probability of benefit from treatment with imatinib has the potential to guide individualized treatment. Validation of the signature will require testing in randomized, placebo-controlled studies. Clinicaltrials.gov NCT00555581 and NCT01166139.
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Affiliation(s)
- D James Haddon
- From the Division of Immunology and Rheumatology, Stanford University School of Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford; Department of Rheumatology, Palo Alto VA Health Care System, Palo Alto, California; Department of Rheumatology, Hospital for Special Surgery, New York, New York, USA
- D.J. Haddon, PhD, Research Associate, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine; H.E. Wand, BS, Genetic Counseling Candidate, Division of Immunology and Rheumatology, Stanford University School of Medicine; J.A. Jarrell, PhD Candidate, Immunology, Division of Immunology and Rheumatology, Stanford University School of Medicine; R.F. Spiera, MD, Professor of Clinical Medicine, Rheumatology and Director, Vasculitis and Scleroderma Program, Department of Rheumatology, Hospital for Special Surgery; P.J. Utz, MD, Professor of Medicine, Immunology and Rheumatology, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine; J.K. Gordon, MD, Assistant Professor of Medicine, Rheumatology, Department of Rheumatology, Hospital for Special Surgery, New York; L.S. Chung, MD, MS, Associate Professor of Medicine, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine, and Department of Rheumatology, Palo Alto VA Health Care System
| | - Hannah E Wand
- From the Division of Immunology and Rheumatology, Stanford University School of Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford; Department of Rheumatology, Palo Alto VA Health Care System, Palo Alto, California; Department of Rheumatology, Hospital for Special Surgery, New York, New York, USA
- D.J. Haddon, PhD, Research Associate, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine; H.E. Wand, BS, Genetic Counseling Candidate, Division of Immunology and Rheumatology, Stanford University School of Medicine; J.A. Jarrell, PhD Candidate, Immunology, Division of Immunology and Rheumatology, Stanford University School of Medicine; R.F. Spiera, MD, Professor of Clinical Medicine, Rheumatology and Director, Vasculitis and Scleroderma Program, Department of Rheumatology, Hospital for Special Surgery; P.J. Utz, MD, Professor of Medicine, Immunology and Rheumatology, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine; J.K. Gordon, MD, Assistant Professor of Medicine, Rheumatology, Department of Rheumatology, Hospital for Special Surgery, New York; L.S. Chung, MD, MS, Associate Professor of Medicine, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine, and Department of Rheumatology, Palo Alto VA Health Care System
| | - Justin A Jarrell
- From the Division of Immunology and Rheumatology, Stanford University School of Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford; Department of Rheumatology, Palo Alto VA Health Care System, Palo Alto, California; Department of Rheumatology, Hospital for Special Surgery, New York, New York, USA
- D.J. Haddon, PhD, Research Associate, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine; H.E. Wand, BS, Genetic Counseling Candidate, Division of Immunology and Rheumatology, Stanford University School of Medicine; J.A. Jarrell, PhD Candidate, Immunology, Division of Immunology and Rheumatology, Stanford University School of Medicine; R.F. Spiera, MD, Professor of Clinical Medicine, Rheumatology and Director, Vasculitis and Scleroderma Program, Department of Rheumatology, Hospital for Special Surgery; P.J. Utz, MD, Professor of Medicine, Immunology and Rheumatology, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine; J.K. Gordon, MD, Assistant Professor of Medicine, Rheumatology, Department of Rheumatology, Hospital for Special Surgery, New York; L.S. Chung, MD, MS, Associate Professor of Medicine, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine, and Department of Rheumatology, Palo Alto VA Health Care System
| | - Robert F Spiera
- From the Division of Immunology and Rheumatology, Stanford University School of Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford; Department of Rheumatology, Palo Alto VA Health Care System, Palo Alto, California; Department of Rheumatology, Hospital for Special Surgery, New York, New York, USA
- D.J. Haddon, PhD, Research Associate, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine; H.E. Wand, BS, Genetic Counseling Candidate, Division of Immunology and Rheumatology, Stanford University School of Medicine; J.A. Jarrell, PhD Candidate, Immunology, Division of Immunology and Rheumatology, Stanford University School of Medicine; R.F. Spiera, MD, Professor of Clinical Medicine, Rheumatology and Director, Vasculitis and Scleroderma Program, Department of Rheumatology, Hospital for Special Surgery; P.J. Utz, MD, Professor of Medicine, Immunology and Rheumatology, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine; J.K. Gordon, MD, Assistant Professor of Medicine, Rheumatology, Department of Rheumatology, Hospital for Special Surgery, New York; L.S. Chung, MD, MS, Associate Professor of Medicine, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine, and Department of Rheumatology, Palo Alto VA Health Care System
| | - Paul J Utz
- From the Division of Immunology and Rheumatology, Stanford University School of Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford; Department of Rheumatology, Palo Alto VA Health Care System, Palo Alto, California; Department of Rheumatology, Hospital for Special Surgery, New York, New York, USA
- D.J. Haddon, PhD, Research Associate, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine; H.E. Wand, BS, Genetic Counseling Candidate, Division of Immunology and Rheumatology, Stanford University School of Medicine; J.A. Jarrell, PhD Candidate, Immunology, Division of Immunology and Rheumatology, Stanford University School of Medicine; R.F. Spiera, MD, Professor of Clinical Medicine, Rheumatology and Director, Vasculitis and Scleroderma Program, Department of Rheumatology, Hospital for Special Surgery; P.J. Utz, MD, Professor of Medicine, Immunology and Rheumatology, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine; J.K. Gordon, MD, Assistant Professor of Medicine, Rheumatology, Department of Rheumatology, Hospital for Special Surgery, New York; L.S. Chung, MD, MS, Associate Professor of Medicine, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine, and Department of Rheumatology, Palo Alto VA Health Care System
| | - Jessica K Gordon
- From the Division of Immunology and Rheumatology, Stanford University School of Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford; Department of Rheumatology, Palo Alto VA Health Care System, Palo Alto, California; Department of Rheumatology, Hospital for Special Surgery, New York, New York, USA
- D.J. Haddon, PhD, Research Associate, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine; H.E. Wand, BS, Genetic Counseling Candidate, Division of Immunology and Rheumatology, Stanford University School of Medicine; J.A. Jarrell, PhD Candidate, Immunology, Division of Immunology and Rheumatology, Stanford University School of Medicine; R.F. Spiera, MD, Professor of Clinical Medicine, Rheumatology and Director, Vasculitis and Scleroderma Program, Department of Rheumatology, Hospital for Special Surgery; P.J. Utz, MD, Professor of Medicine, Immunology and Rheumatology, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine; J.K. Gordon, MD, Assistant Professor of Medicine, Rheumatology, Department of Rheumatology, Hospital for Special Surgery, New York; L.S. Chung, MD, MS, Associate Professor of Medicine, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine, and Department of Rheumatology, Palo Alto VA Health Care System
| | - Lorinda S Chung
- From the Division of Immunology and Rheumatology, Stanford University School of Medicine; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford; Department of Rheumatology, Palo Alto VA Health Care System, Palo Alto, California; Department of Rheumatology, Hospital for Special Surgery, New York, New York, USA.
- D.J. Haddon, PhD, Research Associate, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine; H.E. Wand, BS, Genetic Counseling Candidate, Division of Immunology and Rheumatology, Stanford University School of Medicine; J.A. Jarrell, PhD Candidate, Immunology, Division of Immunology and Rheumatology, Stanford University School of Medicine; R.F. Spiera, MD, Professor of Clinical Medicine, Rheumatology and Director, Vasculitis and Scleroderma Program, Department of Rheumatology, Hospital for Special Surgery; P.J. Utz, MD, Professor of Medicine, Immunology and Rheumatology, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine; J.K. Gordon, MD, Assistant Professor of Medicine, Rheumatology, Department of Rheumatology, Hospital for Special Surgery, New York; L.S. Chung, MD, MS, Associate Professor of Medicine, Immunology and Rheumatology, Division of Immunology and Rheumatology, Stanford University School of Medicine, and Department of Rheumatology, Palo Alto VA Health Care System.
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24
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Merkel PA, Xie G, Monach PA, Ji X, Ciavatta DJ, Byun J, Pinder BD, Zhao A, Zhang J, Tadesse Y, Qian D, Weirauch M, Nair R, Tsoi A, Pagnoux C, Carette S, Chung S, Cuthbertson D, Davis JC, Dellaripa PF, Forbess L, Gewurz-Singer O, Hoffman GS, Khalidi N, Koening C, Langford CA, Mahr AD, McAlear C, Moreland L, Seo EP, Specks U, Spiera RF, Sreih A, St Clair EW, Stone JH, Ytterberg SR, Elder JT, Qu J, Ochi T, Hirano N, Edberg JC, Falk RJ, Amos CI, Siminovitch KA. Identification of Functional and Expression Polymorphisms Associated With Risk for Antineutrophil Cytoplasmic Autoantibody-Associated Vasculitis. Arthritis Rheumatol 2017; 69:1054-1066. [PMID: 28029757 PMCID: PMC5434905 DOI: 10.1002/art.40034] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 12/20/2016] [Indexed: 01/28/2023]
Abstract
Objective To identify risk alleles relevant to the causal and biologic mechanisms of antineutrophil cytoplasmic antibody (ANCA)–associated vasculitis (AAV). Methods A genome‐wide association study and subsequent replication study were conducted in a total cohort of 1,986 cases of AAV (patients with granulomatosis with polyangiitis [Wegener's] [GPA] or microscopic polyangiitis [MPA]) and 4,723 healthy controls. Meta‐analysis of these data sets and functional annotation of identified risk loci were performed, and candidate disease variants with unknown functional effects were investigated for their impact on gene expression and/or protein function. Results Among the genome‐wide significant associations identified, the largest effect on risk of AAV came from the single‐nucleotide polymorphism variants rs141530233 and rs1042169 at the HLA–DPB1 locus (odds ratio [OR] 2.99 and OR 2.82, respectively) which, together with a third variant, rs386699872, constitute a triallelic risk haplotype associated with reduced expression of the HLA–DPB1 gene and HLA–DP protein in B cells and monocytes and with increased frequency of complementary proteinase 3 (PR3)–reactive T cells relative to that in carriers of the protective haplotype. Significant associations were also observed at the SERPINA1 and PTPN22 loci, the peak signals arising from functionally relevant missense variants, and at PRTN3, in which the top‐scoring variant correlated with increased PRTN3 expression in neutrophils. Effects of individual loci on AAV risk differed between patients with GPA and those with MPA or between patients with PR3‐ANCAs and those with myeloperoxidase‐ANCAs, but the collective population attributable fraction for these variants was substantive, at 77%. Conclusion This study reveals the association of susceptibility to GPA and MPA with functional gene variants that explain much of the genetic etiology of AAV, could influence and possibly be predictors of the clinical presentation, and appear to alter immune cell proteins and responses likely to be key factors in the pathogenesis of AAV.
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Affiliation(s)
| | - Gang Xie
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute and Toronto General Research Institute, Toronto, Ontario, Canada
| | - Paul A Monach
- Boston University and VA Boston Healthcare System, Boston, Massachusetts
| | - Xuemei Ji
- Dartmouth College, Lebanon, New Hampshire
| | | | | | - Benjamin D Pinder
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute and Toronto General Research Institute, Toronto, Ontario, Canada
| | - Ai Zhao
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute and Toronto General Research Institute, Toronto, Ontario, Canada
| | - Jinyi Zhang
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute, Toronto General Research Institute and University of Toronto, Toronto, Ontario, Canada
| | - Yohannes Tadesse
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute and Toronto General Research Institute, Toronto, Ontario, Canada
| | - David Qian
- Dartmouth College, Lebanon, New Hampshire
| | | | | | | | - Christian Pagnoux
- Mount Sinai Hospital and University of Toronto, Toronto, Ontario, Canada
| | - Simon Carette
- Mount Sinai Hospital and University of Toronto, Toronto, Ontario, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - James T Elder
- University of Michigan and Ann Arbor VA Hospital, Ann Arbor, Michigan
| | - Jia Qu
- Wenzhou Medical University, Wenzhou, China
| | - Toshiki Ochi
- University of Toronto and Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Naoto Hirano
- University of Toronto and Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | | | | | | | - Katherine A Siminovitch
- Mount Sinai Hospital, Lunenfeld-Tanenbaum Research Institute, Toronto General Research Institute and University of Toronto, Toronto, Ontario, Canada
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Mahr A, Edouard S, Cornec D, Guilpain P, Hoffman GS, Kallenberg CG, Karnell F, Langford CA, Merkel PA, Monach PA, Pichon M, St. Clair EW, Seo P, Spiera RF, Ytterberg SR, Stone JH, Raoult D, Specks U. P2_19 High Bartonella Seroprevalence in Proteinase 3-Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis. Rheumatology (Oxford) 2017. [DOI: 10.1093/rheumatology/kex130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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26
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Clain JM, Hummel AM, Stone JH, Fervenza FC, Hoffman GS, Kallenberg CGM, Langford CA, McCune WJ, Merkel PA, Monach PA, Seo P, Spiera RF, St Clair EW, Ytterberg SR, Specks U. Immunoglobulin (Ig)M antibodies to proteinase 3 in granulomatosis with polyangiitis and microscopic polyangiitis. Clin Exp Immunol 2017; 188:174-181. [PMID: 28076879 DOI: 10.1111/cei.12925] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2017] [Indexed: 01/12/2023] Open
Abstract
Anti-neutrophil cytoplasmic antibodies (ANCA) appear to play an important role in the pathogenesis of ANCA-associated vasculitis (AAV). However, ANCA alone are not sufficient to generate disease, and some evidence suggests that infectious triggers may serve as inciting events for AAV disease activity. Antibodies of the immunoglobulin (Ig)M isotype often serve as markers of recent infection, and IgM ANCA have been identified previously in patients with AAV, although the frequency and clinical relevance of IgM ANCA is not well established. We sought to characterize IgM ANCA more clearly by creating a novel enzyme-linked immunosorbent assay (ELISA) for IgM antibodies to proteinase 3 [IgM proteinase 3 (PR3)-ANCA], which we applied to two large, clinically well-characterized trial cohorts of patients with granulomatosis with polyangiitis and microscopic polyangiitis. In the first cohort, IgM PR3-ANCA occurred with a frequency of 15·0%, and were associated with a higher degree of disease severity and a trend towards a higher rate of alveolar haemorrhage (29·6 versus 15·7%, P = 0·10). Analysis of follow-up samples in this cohort showed that the presence of IgM PR3-ANCA was transient, but could recur. In the second cohort, IgM PR3-ANCA occurred with a frequency of 41·1%, and were also associated with a higher degree of disease severity. A higher rate of alveolar haemorrhage was observed among those with IgM PR3-ANCA (45·3 versus 15·8%; P < 0·001). The association of transient IgM PR3-ANCA with an acute respiratory manifestation of AAV suggests a possible link between an infectious trigger and AAV disease activity.
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Affiliation(s)
- J M Clain
- Mayo Clinic and Foundation, Rochester, MN, USA
| | - A M Hummel
- Mayo Clinic and Foundation, Rochester, MN, USA
| | - J H Stone
- Massachusetts General Hospital, Boston, MA, USA
| | | | - G S Hoffman
- Cleveland Clinic Foundation, Cleveland, OH, USA
| | | | | | - W J McCune
- University of Michigan, Ann Arbor, MI, USA
| | - P A Merkel
- University of Pennsylvania, Philadelphia, PA, USA
| | - P A Monach
- Boston University Medical Center, Boston, MA, USA
| | - P Seo
- Johns Hopkins University, Baltimore, MD, USA
| | - R F Spiera
- Hospital for Special Surgery, New York, NY, USA
| | | | | | - U Specks
- Mayo Clinic and Foundation, Rochester, MN, USA
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Carmona FD, Vaglio A, Mackie SL, Hernández-Rodríguez J, Monach PA, Castañeda S, Solans R, Morado IC, Narváez J, Ramentol-Sintas M, Pease CT, Dasgupta B, Watts R, Khalidi N, Langford CA, Ytterberg S, Boiardi L, Beretta L, Govoni M, Emmi G, Bonatti F, Cimmino MA, Witte T, Neumann T, Holle J, Schönau V, Sailler L, Papo T, Haroche J, Mahr A, Mouthon L, Molberg Ø, Diamantopoulos AP, Voskuyl A, Brouwer E, Daikeler T, Berger CT, Molloy ES, O’Neill L, Blockmans D, Lie BA, Mclaren P, Vyse TJ, Wijmenga C, Allanore Y, Koeleman BP, Barrett JH, Cid MC, Salvarani C, Merkel PA, Morgan AW, González-Gay MA, Martín J, Callejas JL, Caminal-Montero L, Corbera-Bellalta M, de Miguel E, López JBD, García-Villanueva MJ, Gómez-Vaquero C, Guijarro-Rojas M, Hidalgo-Conde A, Marí-Alfonso B, Berriochoa AM, Zapico AM, Martínez-Taboada VM, Miranda-Filloy JA, Monfort J, Ortego-Centeno N, Pérez-Conesa M, Prieto-González S, Raya E, Fernández RR, Sánchez-Martín J, Sopeña B, Tío L, Unzurrunzaga A, Gough A, Isaacs JD, Green M, McHugh N, Hordon L, Kamath S, Nisar M, Patel Y, Yee CS, Stevens R, Nandi P, Nandagudi A, Jarrett S, Li C, Levy S, Mollan S, Salih A, Wordsworth O, Sanders E, Roads E, Gill A, Carr L, Routledge C, Culfear K, Nugaliyadde A, James L, Spimpolo J, Kempa A, Mackenzie F, Fong R, Peters G, Rowbotham B, Masqood Z, Hollywood J, Gondo P, Wood R, Martin S, Rashid LH, Robinson JI, Morgan M, Sorensen L, Taylor J, Carette S, Chung S, Cuthbertson D, Forbess LJ, Gewurz-Singer O, Hoffman GS, Koening CL, Maksimowicz-McKinnon KM, McAlear CA, Moreland LW, Pagnoux C, Seo P, Specks U, Spiera RF, Sreih A, Warrington KJ, Weisman M. A Genome-wide Association Study Identifies Risk Alleles in Plasminogen and P4HA2 Associated with Giant Cell Arteritis. Am J Hum Genet 2017; 100:64-74. [PMID: 28041642 DOI: 10.1016/j.ajhg.2016.11.013] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 11/18/2016] [Indexed: 02/07/2023] Open
Abstract
Giant cell arteritis (GCA) is the most common form of vasculitis in individuals older than 50 years in Western countries. To shed light onto the genetic background influencing susceptibility for GCA, we performed a genome-wide association screening in a well-powered study cohort. After imputation, 1,844,133 genetic variants were analyzed in 2,134 case subjects and 9,125 unaffected individuals from ten independent populations of European ancestry. Our data confirmed HLA class II as the strongest associated region (independent signals: rs9268905, p = 1.94 × 10-54, per-allele OR = 1.79; and rs9275592, p = 1.14 × 10-40, OR = 2.08). Additionally, PLG and P4HA2 were identified as GCA risk genes at the genome-wide level of significance (rs4252134, p = 1.23 × 10-10, OR = 1.28; and rs128738, p = 4.60 × 10-9, OR = 1.32, respectively). Interestingly, we observed that the association peaks overlapped with different regulatory elements related to cell types and tissues involved in the pathophysiology of GCA. PLG and P4HA2 are involved in vascular remodelling and angiogenesis, suggesting a high relevance of these processes for the pathogenic mechanisms underlying this type of vasculitis.
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Cartin‐Ceba R, Indrakanti D, Specks U, Stone JH, Hoffman GS, Kallenberg CGM, Langford CA, Merkel PA, Spiera RF, Monach PA, St.Clair EW, Seo P, Tchao NK, Ytterberg SR, Brunetta PG, Song H, Birmingham D, Rovin BH. The Pharmacogenomic Association of Fcγ Receptors and Cytochrome P450 Enzymes With Response to Rituximab or Cyclophosphamide Treatment in Antineutrophil Cytoplasmic Antibody–Associated Vasculitis. Arthritis Rheumatol 2016; 69:169-175. [DOI: 10.1002/art.39822] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/19/2016] [Indexed: 02/01/2023]
Affiliation(s)
| | | | - Ulrich Specks
- Mayo Clinic and Foundation, Rochester, Minnesota, and Scottsdale Arizona
| | | | | | | | | | | | | | - Paul A. Monach
- Boston University School of MedicineBoston Massachusetts
| | | | - Philip Seo
- Johns Hopkins UniversityBaltimore Maryland
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Bernstein EJ, Gordon JK, Spiera RF, Huang WT, Horn EM, Mandl LA. Comparison of change in end tidal carbon dioxide after three minutes of step exercise between systemic sclerosis patients with and without pulmonary hypertension. Rheumatology (Oxford) 2016; 56:87-94. [PMID: 28028158 DOI: 10.1093/rheumatology/kew365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 09/06/2016] [Indexed: 02/02/2023] Open
Abstract
OBJECTIVES Pulmonary hypertension (PH) is an important cause of morbidity and mortality in patients with SSc. The submaximal heart and pulmonary evaluation (step test) is a non-invasive, submaximal stress test that could be used to identify SSc patients with PH. Our aims were to determine whether change in end tidal carbon dioxide ([Formula: see text]) from rest to end-exercise, and the minute ventilation to carbon dioxide production ratio ([Formula: see text]), both as measured by the step test, differ between SSc patients with and without PH. We also examined differences in validated self-report questionnaires and potential PH biomarkers between SSc patients with and without PH. METHODS We performed a cross-sectional study of 27 patients with limited or dcSSc who underwent a right heart catheterization within 24 months prior to study entry. The study visit consisted of questionnaire completion; history; physical examination; step test performance; and phlebotomy. [Formula: see text], [Formula: see text], self-report data and biomarkers were compared between patients with and without PH. RESULTS SSc patients with PH had a statistically significantly lower median (interquartile range) [Formula: see text] than SSc patients without PH [-2.1 (-5.1 to 0.7) vs 1.2 (-0.7 to 5.4) mmHg, P = 0.035], and a statistically significantly higher median (interquartile range) [Formula: see text] [53.4 (39-64.1) vs 36.4 (31.9-41.1), P = 0.035]. There were no statistically significant differences in self-report data or biomarkers between groups. CONCLUSION [Formula: see text] and [Formula: see text] as measured by the step test are statistically significantly different between SSc patients with and without PH. [Formula: see text] and [Formula: see text] may be useful screening tools for PH in the SSc population.
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Affiliation(s)
- Elana J Bernstein
- Division of Rheumatology, Department of Medicine, Columbia University College of Physicians and Surgeons, New York-Presbyterian Hospital
| | - Jessica K Gordon
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery
| | - Robert F Spiera
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery
| | - Wei-Ti Huang
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery
| | - Evelyn M Horn
- Division of Cardiology, Department of Medicine, Weill Cornell Medical College, New York-Presbyterian Hospital, New York, NY, USA
| | - Lisa A Mandl
- Division of Rheumatology, Department of Medicine, Hospital for Special Surgery
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Chia JJ, Zhu T, Chyou S, Dasoveanu DC, Carballo C, Tian S, Magro CM, Rodeo S, Spiera RF, Ruddle NH, McGraw TE, Browning JL, Lafyatis R, Gordon JK, Lu TT. Dendritic cells maintain dermal adipose-derived stromal cells in skin fibrosis. J Clin Invest 2016; 126:4331-4345. [PMID: 27721238 DOI: 10.1172/jci85740] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 08/30/2016] [Indexed: 12/14/2022] Open
Abstract
Scleroderma is a group of skin-fibrosing diseases for which there are no effective treatments. A feature of the skin fibrosis typical of scleroderma is atrophy of the dermal white adipose tissue (DWAT). Adipose tissue contains adipose-derived mesenchymal stromal cells (ADSCs) that have regenerative and reparative functions; however, whether DWAT atrophy in fibrosis is accompanied by ADSC loss is poorly understood, as are the mechanisms that might maintain ADSC survival in fibrotic skin. Here, we have shown that DWAT ADSC numbers were reduced, likely because of cell death, in 2 murine models of scleroderma skin fibrosis. The remaining ADSCs showed a partial dependence on dendritic cells (DCs) for survival. Lymphotoxin β (LTβ) expression in DCs maintained ADSC survival in fibrotic skin by activating an LTβ receptor/β1 integrin (LTβR/β1 integrin) pathway on ADSCs. Stimulation of LTβR augmented the engraftment of therapeutically injected ADSCs, which was associated with reductions in skin fibrosis and improved skin function. These findings provide insight into the effects of skin fibrosis on DWAT ADSCs, identify a DC-ADSC survival axis in fibrotic skin, and suggest an approach for improving mesenchymal stromal cell therapy in scleroderma and other diseases.
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Pelrine ER, Ah-Kioon MD, Zhang M, Barrat FJ, Spiera RF, Gordon JK. Musculoskeletal Involvement in SSc Is Associated with Worse Scores on Short Form-36 and Scleroderma Health Assessment Questionnaire and Lower Tumor Necrosis Factor-α Gene Expression in Peripheral Blood Mononuclear Cells. HSS J 2016; 12:255-260. [PMID: 27703420 PMCID: PMC5026664 DOI: 10.1007/s11420-016-9515-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 06/30/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Systemic sclerosis (SSc) is characterized by a wide variety of symptoms and disease manifestations including joint pain, gastrointestinal dysfunction, interstitial lung disease, and cardiomyopathy. QUESTIONS/PURPOSES Using the Scleroderma Health Assessment Questionnaire (SHAQ) and Short Form-36 (SF-36) we explored how patient-reported physical health, mental health, and functional status related to these clinical characteristics and to cytokine levels utilizing the Hospital for Special Surgery Scleroderma Registry. METHODS In a cross-sectional study of 185 patients meeting the 2013 ACR/EULAR criteria for SSc, we compared disease features and patient-reported outcomes (PROs). Interleukin-6 (IL-6), interleukin-1β (IL1β), and tumor necrosis factor-α (TNFα) levels were assessed by luminex and ELISA assays in a subset of 32 patients. The Pearson correlation coefficient, Spearman correlation coefficient, two-sample t test or Wilcoxon rank sum test, ANOVA or Kuskal-Wallis test, and Pearson chi-squared or Fisher's exact test were performed as applicable to detect the association between disease manifestations, PROs, and blood biomarkers. RESULTS The modified Rodnan skin score (MRSS) was positively correlated with SHAQ scores. Patients who had musculoskeletal involvement scored worse on both the SHAQ and SF-36. Lower levels of TNFα expression in PBMCs were also correlated with musculoskeletal involvement. No other significant correlations were found between clinical factors, PROs, and cytokine data. CONCLUSION Musculoskeletal outcomes are a major determinant of quality of life and function in patients with SSc. These results emphasize the importance of musculoskeletal outcomes in clinical studies of SSc.
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Affiliation(s)
- Eliza R. Pelrine
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Streret, New York, NY 10021 USA
| | | | - Meng Zhang
- Department of Biostatistics, Hospital for Special Surgery, New York, NY USA
| | - Franck J. Barrat
- Department of Research, Hospital for Special Surgery, New York, NY USA
| | - Robert F. Spiera
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Streret, New York, NY 10021 USA
| | - Jessica K. Gordon
- Department of Medicine, Hospital for Special Surgery, 535 East 70th Streret, New York, NY 10021 USA
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Mills JR, Cornec D, Dasari S, Ladwig PM, Hummel AM, Cheu M, Murray DL, Willrich MA, Snyder MR, Hoffman GS, Kallenberg CGM, Langford CA, Merkel PA, Monach PA, Seo P, Spiera RF, St Clair EW, Stone JH, Specks U, Barnidge DR. Using Mass Spectrometry to Quantify Rituximab and Perform Individualized Immunoglobulin Phenotyping in ANCA-Associated Vasculitis. Anal Chem 2016; 88:6317-25. [PMID: 27228216 DOI: 10.1021/acs.analchem.6b00544] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Therapeutic monoclonal immunoglobulins (mAbs) are used to treat patients with a wide range of disorders including autoimmune diseases. As pharmaceutical companies bring more fully humanized therapeutic mAb drugs to the healthcare market analytical platforms that perform therapeutic drug monitoring (TDM) without relying on mAb specific reagents will be needed. In this study we demonstrate that liquid-chromatography-mass spectrometry (LC-MS) can be used to perform TDM of mAbs in the same manner as smaller nonbiologic drugs. The assay uses commercially available reagents combined with heavy and light chain disulfide bond reduction followed by light chain analysis by microflow-LC-electrospray ionization-quadrupole-time-of-flight mass spectrometry (ESI-Q-TOF MS). Quantification is performed using the peak areas from multiply charged mAb light chain ions using an in-house developed software package developed for TDM of mAbs. The data presented here demonstrate the ability of an LC-MS assay to quantify a therapeutic mAb in a large cohort of patients in a clinical trial. The ability to quantify any mAb in serum via the reduced light chain without the need for reagents specific for each mAb demonstrates the unique capabilities of LC-MS. This fact, coupled with the ability to phenotype a patient's polyclonal repertoire in the same analysis further shows the potential of this approach to mAb analysis.
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Affiliation(s)
- John R Mills
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - Divi Cornec
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic , Rochester, Minnesota 55905, United States.,Rheumatology Department, Brest University Hospital , 29609 Brest, Cedex, France
| | - Surendra Dasari
- Department of Health Sciences Research, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - Paula M Ladwig
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - Amber M Hummel
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - Melissa Cheu
- Genentech Inc. , South San Francisco, California 94080, United States
| | - David L Murray
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - Maria A Willrich
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - Melissa R Snyder
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - Gary S Hoffman
- Cleveland Clinic Foundation , Cleveland, Ohio 44195, United States
| | | | - Carol A Langford
- Cleveland Clinic Foundation , Cleveland, Ohio 44195, United States
| | - Peter A Merkel
- University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Paul A Monach
- Boston University Medical Center , Boston, Massachusetts 02115, United States
| | - Philip Seo
- Johns Hopkins University , Baltimore, Maryland 21218, United States
| | - Robert F Spiera
- Hospital for Special Surgery , New York, New York 10021, United States
| | | | - John H Stone
- Massachusetts General Hospital , Boston, Massachusetts 02114, United States
| | - Ulrich Specks
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic , Rochester, Minnesota 55905, United States
| | - David R Barnidge
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota 55905, United States
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Rice LM, Ziemek J, Stratton EA, McLaughlin SR, Padilla CM, Mathes AL, Christmann RB, Stifano G, Browning JL, Whitfield ML, Spiera RF, Gordon JK, Simms RW, Zhang Y, Lafyatis R. A longitudinal biomarker for the extent of skin disease in patients with diffuse cutaneous systemic sclerosis. Arthritis Rheumatol 2016; 67:3004-15. [PMID: 26240058 DOI: 10.1002/art.39287] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 07/14/2015] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To define a pharmacodynamic biomarker based on gene expression in skin that would provide a biologic measure of the extent of disease in patients with diffuse cutaneous systemic sclerosis (dcSSc) and could be used to monitor skin disease longitudinally. METHODS Skin biopsy specimens obtained from a cohort of patients with dcSSc (including longitudinal specimens) were analyzed by microarray. Expression of genes correlating with the modified Rodnan skin thickness score (MRSS) were examined for change over time using a NanoString platform, and a generalized estimating equation (GEE) was used to define and validate longitudinally measured pharmacodynamic biomarkers composed of multiple genes. RESULTS Microarray analysis of genes parsed to include only those correlating with the MRSS revealed prominent clusters of profibrotic/transforming growth factor β-regulated, interferon-regulated/proteasome, macrophage, and vascular marker genes. Using genes changing longitudinally with the MRSS, we defined 2 multigene pharmacodynamic biomarkers. The first was defined mathematically by applying a GEE to longitudinal samples. This modeling method selected cross-sectional THBS1 and longitudinal THBS1 and MS4A4A. The second model was based on a weighted selection of genes, including additional genes that changed statistically significantly over time: CTGF, CD163, CCL2, and WIF1. In an independent validation data set, biomarker levels calculated using both models correlated highly with the MRSS. CONCLUSION Skin gene expression can be used effectively to monitor changes in SSc skin disease over time. We implemented 2 relatively simple models on a NanoString platform permitting highly reproducible assays that can be applied directly to samples from patients or collected as part of clinical trials.
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Affiliation(s)
- Lisa M Rice
- Boston University School of Medicine, Boston, Massachusetts
| | - Jessica Ziemek
- Boston University School of Medicine, Boston, Massachusetts
| | | | | | | | | | | | | | | | - Michael L Whitfield
- Geisel School of Medicine at Dartmouth University Medical School, Hanover, New Hampshire
| | | | | | - Robert W Simms
- Boston University School of Medicine, Boston, Massachusetts
| | - Yuqing Zhang
- Boston University School of Medicine, Boston, Massachusetts
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Johnson ME, Grassetti AV, Taroni JN, Lyons SM, Schweppe D, Gordon JK, Spiera RF, Lafyatis R, Anderson PJ, Gerber SA, Whitfield ML. Stress granules and RNA processing bodies are novel autoantibody targets in systemic sclerosis. Arthritis Res Ther 2016; 18:27. [PMID: 26801089 PMCID: PMC4724133 DOI: 10.1186/s13075-016-0914-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 01/03/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Autoantibody profiles represent important patient stratification markers in systemic sclerosis (SSc). Here, we performed serum-immunoprecipitations with patient antibodies followed by mass spectrometry (LC-MS/MS) to obtain an unbiased view of all possible autoantibody targets and their associated molecular complexes recognized by SSc. METHODS HeLa whole cell lysates were immunoprecipitated (IP) using sera of patients with SSc clinically positive for autoantibodies against RNA polymerase III (RNAP3), topoisomerase 1 (TOP1), and centromere proteins (CENP). IP eluates were then analyzed by LC-MS/MS to identify novel proteins and complexes targeted in SSc. Target proteins were examined using a functional interaction network to identify major macromolecular complexes, with direct targets validated by IP-Western blots and immunofluorescence. RESULTS A wide range of peptides were detected across patients in each clinical autoantibody group. Each group contained peptides representing a broad spectrum of proteins in large macromolecular complexes, with significant overlap between groups. Network analyses revealed significant enrichment for proteins in RNA processing bodies (PB) and cytosolic stress granules (SG) across all SSc subtypes, which were confirmed by both Western blot and immunofluorescence. CONCLUSIONS While strong reactivity was observed against major SSc autoantigens, such as RNAP3 and TOP1, there was overlap between groups with widespread reactivity seen against multiple proteins. Identification of PB and SG as major targets of the humoral immune response represents a novel SSc autoantigen and suggests a model in which a combination of chronic and acute cellular stresses result in aberrant cell death, leading to autoantibody generation directed against macromolecular nucleic acid-protein complexes.
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Affiliation(s)
- Michael E Johnson
- Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
| | - Andrew V Grassetti
- Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
| | - Jaclyn N Taroni
- Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
| | - Shawn M Lyons
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA, USA.
| | - Devin Schweppe
- Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
| | - Jessica K Gordon
- Department of Rheumatology, Hospital for Special Surgery, New York, NY, USA.
| | - Robert F Spiera
- Department of Rheumatology, Hospital for Special Surgery, New York, NY, USA.
| | | | - Paul J Anderson
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, MA, USA.
| | - Scott A Gerber
- Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
| | - Michael L Whitfield
- Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
- Dartmouth Medical School, Hinman Box 7400, Hanover, NH, 03755, USA.
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Grayson PC, Carmona-Rivera C, Xu L, Lim N, Gao Z, Asare AL, Specks U, Stone JH, Seo P, Spiera RF, Langford CA, Hoffman GS, Kallenberg CGM, St Clair EW, Tchao NK, Ytterberg SR, Phippard DJ, Merkel PA, Kaplan MJ, Monach PA. Neutrophil-Related Gene Expression and Low-Density Granulocytes Associated With Disease Activity and Response to Treatment in Antineutrophil Cytoplasmic Antibody-Associated Vasculitis. Arthritis Rheumatol 2015; 67:1922-32. [PMID: 25891759 DOI: 10.1002/art.39153] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 04/07/2015] [Indexed: 01/31/2023]
Abstract
OBJECTIVE To discover biomarkers involved in the pathophysiology of antineutrophil cytoplasmic antibody-associated vasculitis (AAV) and to determine whether low-density granulocytes (LDGs) contribute to gene expression signatures in AAV. METHODS The source of clinical data and linked biologic specimens was a randomized controlled treatment trial in AAV. RNA sequencing of whole blood from patients with AAV was performed during active disease at the baseline visit and during remission 6 months later. Gene expression was compared between patients who met versus those who did not meet the primary trial outcome of clinical remission at 6 months (responders versus nonresponders). Measurement of neutrophil-related gene expression was confirmed in peripheral blood mononuclear cells (PBMCs) to validate the findings in whole blood. A negative-selection strategy isolated LDGs from PBMC fractions. RESULTS Differential expression between responders (n = 77) and nonresponders (n = 35) was detected in 2,346 transcripts at the baseline visit (P < 0.05). Unsupervised hierarchical clustering demonstrated a cluster of granulocyte-related genes, including myeloperoxidase (MPO) and proteinase 3 (PR3). A granulocyte multigene composite score was significantly higher in nonresponders than in responders (P < 0.01) and during active disease than during remission (P < 0.01). This signature strongly overlapped an LDG signature identified previously in lupus (false discovery rate by gene set enrichment analysis <0.01). Transcription of PR3 measured in PBMCs was associated with active disease and treatment response (P < 0.01). LDGs isolated from patients with AAV spontaneously formed neutrophil extracellular traps containing PR3 and MPO. CONCLUSION In AAV, increased expression of a granulocyte gene signature is associated with disease activity and decreased response to treatment. The source of this signature is likely LDGs, a potentially pathogenic cell type in AAV.
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Affiliation(s)
- Peter C Grayson
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland
| | - Carmelo Carmona-Rivera
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland
| | - Lijing Xu
- Immune Tolerance Network, Bethesda, Maryland
| | - Noha Lim
- Immune Tolerance Network, Bethesda, Maryland
| | - Zhong Gao
- Immune Tolerance Network, Bethesda, Maryland
| | | | | | | | - Philip Seo
- Johns Hopkins University, Baltimore, Maryland
| | | | | | | | | | | | | | | | | | | | - Mariana J Kaplan
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland
| | - Paul A Monach
- Boston University School of Medicine, Boston, Massachusetts
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Gordon JK, Martyanov V, Magro C, Wildman HF, Wood TA, Huang WT, Crow MK, Whitfield ML, Spiera RF. Nilotinib (Tasigna™) in the treatment of early diffuse systemic sclerosis: an open-label, pilot clinical trial. Arthritis Res Ther 2015; 17:213. [PMID: 26283632 PMCID: PMC4538758 DOI: 10.1186/s13075-015-0721-3] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 07/20/2015] [Indexed: 01/06/2023] Open
Abstract
Introduction Tyrosine kinase inhibitors (TKI) are medications of interest in the treatment of Systemic Sclerosis (SSc) because of their ability to inhibit pathways involved in fibrosis. In this open-label pilot trial, our objectives were to assess the safety, efficacy, and molecular change associated with treatment of patients with diffuse cutaneous (dc)SSc with the TKI nilotinib (Tasigna™). Methods Ten adult patients with early dcSSc were treated with nilotinib. Primary endpoints were safety and change in modified Rodnan Skin Score (MRSS) after 6 months. Lesional skin biopsies at baseline, 6 and 12 months of treatment were assessed by histopathology, immunohistochemistry, and DNA microarray. Results Patients had early and active dcSSc with median disease duration of 0.7 years (range 0.5, 1.7) and increasing MRSS in the month prior to baseline (mean +2.9, p=0.02). Seven out of ten patients completed 6 and 12 months of treatment. Seventy-one adverse events (AEs) including 2 serious AEs were observed, and 92 % of AEs were grade 1-2. Two patients discontinued the medication due to mild QTc prolongation. MRSS improved by a mean of 4.2 points (16 %) at 6 months and by 6.3 points (23 %) at 12 months in the 7 completers, p=0.02 and 0.01, respectively. Patients with a decrease in MRSS >20 % from baseline at 12 months (classified as improvers) had significantly higher expression of transforming growth factor beta receptor (TGFBR) and platelet-derived growth factor receptor beta (PDGFRB) signaling genes at baseline than non-improvers, and the expression of these genes significantly decreased in improvers post-treatment. Conclusion Nilotinib was well tolerated by the majority of patients in this study, with tolerability limited primarily by mild QTc-prolongation. Significant MRSS improvement was observed in these early, active patients, but is not conclusive of treatment effect given the open-label study-design and small number of patients in this pilot study. Improvers had higher levels of expression of genes associated with TGFBR and PDGFRB signaling at baseline, and a significant decrease in the expression of these genes occurred only in patients with higher MRSS improvement. The findings of this pilot study warrant more conclusive evaluation. Trial registration Clinicaltrials.gov NCT01166139, July 1, 2010. Electronic supplementary material The online version of this article (doi:10.1186/s13075-015-0721-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jessica K Gordon
- Department of Rheumatology, Hospital for Special Surgery, 535 East 70th St, New York, NY, 10021, USA.
| | - Viktor Martyanov
- Geisel School of Medicine at Dartmouth, Department of Genetics, Remsen 7400, Hanover, NH, 03755, USA.
| | - Cynthia Magro
- Weill Cornell Medical Center, Department of Dermatopathology, 525 East 68th St, New York, NY, 10065, USA.
| | - Horatio F Wildman
- Weill Cornell Medical Center, Department of Dermatology, 1305 York Ave, New York, NY, 10021, USA.
| | - Tammara A Wood
- Geisel School of Medicine at Dartmouth, Department of Genetics, Remsen 7400, Hanover, NH, 03755, USA.
| | - Wei-Ti Huang
- Department of Rheumatology, Hospital for Special Surgery, 535 East 70th St, New York, NY, 10021, USA.
| | - Mary K Crow
- Department of Rheumatology, Hospital for Special Surgery, 535 East 70th St, New York, NY, 10021, USA.
| | - Michael L Whitfield
- Geisel School of Medicine at Dartmouth, Department of Genetics, Remsen 7400, Hanover, NH, 03755, USA.
| | - Robert F Spiera
- Department of Rheumatology, Hospital for Special Surgery, 535 East 70th St, New York, NY, 10021, USA.
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Rice LM, Padilla CM, McLaughlin SR, Mathes A, Ziemek J, Goummih S, Nakerakanti S, York M, Farina G, Whitfield ML, Spiera RF, Christmann RB, Gordon JK, Weinberg J, Simms RW, Lafyatis R. Fresolimumab treatment decreases biomarkers and improves clinical symptoms in systemic sclerosis patients. J Clin Invest 2015; 125:2795-807. [PMID: 26098215 DOI: 10.1172/jci77958] [Citation(s) in RCA: 246] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 05/14/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND TGF-β has potent profibrotic activity in vitro and has long been implicated in systemic sclerosis (SSc), as expression of TGF-β-regulated genes is increased in the skin and lungs of patients with SSc. Therefore, inhibition of TGF-β may benefit these patients. METHODS Patients with early, diffuse cutaneous SSc were enrolled in an open-label trial of fresolimumab, a high-affinity neutralizing antibody that targets all 3 TGF-β isoforms. Seven patients received two 1 mg/kg doses of fresolimumab, and eight patients received one 5 mg/kg dose of fresolimumab. Serial mid-forearm skin biopsies, performed before and after treatment, were analyzed for expression of the TGF-β-regulated biomarker genes thrombospondin-1 (THBS1) and cartilage oligomeric protein (COMP) and stained for myofibroblasts. Clinical skin disease was assessed using the modified Rodnan skin score (MRSS). RESULTS In patient skin, THBS1 expression rapidly declined after fresolimumab treatment in both groups (P = 0.0313 at 7 weeks and P = 0.0156 at 3 weeks), and skin expression of COMP exhibited a strong downward trend in both groups. Clinical skin disease dramatically and rapidly decreased (P < 0.001 at all time points). Expression levels of other TGF-β-regulated genes, including SERPINE1 and CTGF, declined (P = 0.049 and P = 0.012, respectively), and a 2-gene, longitudinal pharmacodynamic biomarker of SSc skin disease decreased after fresolimumab treatment (P = 0.0067). Dermal myofibroblast infiltration also declined in patient skin after fresolimumab (P < 0.05). Baseline levels of THBS1 were predictive of reduced THBS1 expression and improved MRSS after fresolimumab treatment. CONCLUSION The rapid inhibition of TGF-β-regulated gene expression in response to fresolimumab strongly implicates TGF-β in the pathogenesis of fibrosis in SSc. Parallel improvement in the MRSS indicates that fresolimumab rapidly reverses markers of skin fibrosis. TRIAL REGISTRATION Clinicaltrials.gov NCT01284322.
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Abstract
Pulmonary vasculitis encompasses inflammation in the pulmonary vasculature with involved vessels varying in caliber from large elastic arteries to capillaries. Small pulmonary capillaries are the vessels most commonly involved in vasculitis affecting the lung. The antineutrophil cytoplasmic antibody-associated vasculitides, which include granulomatosis with polyangiitis (formerly Wegener granulomatosis), microscopic polyangiitis, and eosinophilic granulomatosis with polyangiitis (formerly Churg-Strauss syndrome), are the small vessel vasculitides in which pulmonary vasculitis is most frequently observed and are the major focus of this review. Vasculitic involvement of the large pulmonary vessels as may occur in Behçet syndrome and Takayasu arteritis is also discussed.
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Affiliation(s)
- Lindsay Lally
- Division of Rheumatology, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
| | - Robert F Spiera
- Division of Rheumatology, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
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Gordon J, Udeh U, Doobay K, Magro C, Wildman H, Davids M, Mersten JN, Huang WT, Lyman S, Crow MK, Spiera RF. Imatinib mesylate (Gleevec) in the treatment of diffuse cutaneous systemic sclerosis: results of a 24-month open label, extension phase, single-centre trial. Clin Exp Rheumatol 2014; 32:S-189-93. [PMID: 25152211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 03/19/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES We aimed to assess the long-term safety and tolerability of imatinib in diffuse cutaneous systemic sclerosis (dcSSc). METHODS In this open-label, single-arm, extension-phase clinical trial, patients continued imatinib for 24 months following 12 months of initial treatment. RESULTS Seventeen patients were enrolled. Forty of 92 adverse events (AE) and 0/6 serious (S) AEs were possibly related to medication. The MRSS decreased from a median of 21 to 16, (p=0.002). CONCLUSIONS This study demonstrates long-term safety and tolerability of imatinib in a substantial proportion of patients with dcSSc. This is important in evaluating the relevance of this therapy in a chronic disease such as SSc.
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Affiliation(s)
- J Gordon
- Hospital for Special Surgery, New York, USA.
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Lally L, Lebovics RS, Huang WT, Spiera RF. Effectiveness of Rituximab for the Otolaryngologic Manifestations of Granulomatosis With Polyangiitis (Wegener's). Arthritis Care Res (Hoboken) 2014; 66:1403-9. [DOI: 10.1002/acr.22311] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Forbess LJ, Griffin KW, Spiera RF. Practice patterns of ANCA-associated vasculitis: exploring differences among subspecialties at a single academic medical centre. Clin Exp Rheumatol 2014; 32:S48-S50. [PMID: 24854372 PMCID: PMC4315329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 03/12/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES Clinical trial data help guide physician treatment choices for ANCA-associated vasculitis (AAV), but when data are lacking, treatment choices are largely driven by physician preference. Our aim was to examine AAV treatment preferences to determine if patient gender and age, and physician subspecialty affect treatment choices. METHODS Rheumatologists, nephrologists and pulmonologists from an academic medical centre participated in a web-based survey. Three scenarios (remission induction in severe disease; remission maintenance in severe disease; remission induction in limited disease) were presented for 4 patient profiles (28- and 68-year-old female/male). Physician treatment choices and reasons for these choices were obtained. Differences between groups were analysed using Chi-Square and Fisher's exact tests. RESULTS Physicians were significantly more likely to choose rituximab for young females for remission induction in severe AAV, with toxicity being the main reason for this choice. There was a trend toward rheumatologists choosing rituximab over cyclophosphamide compared with other subspecialties for this scenario. Most physicians switched to a less toxic agent for remission maintenance, but there was little agreement as to choice of maintenance therapy among subspecialties. For remission induction in limited disease, most physicians chose rituximab, particularly for young females. CONCLUSIONS Currently, there are very few data for remission maintenance therapy following rituximab in severe disease, as well as the use of rituximab in limited disease. Choices for treatment of AAV differ among subspecialties, are affected by patient gender and age, and tend to be largely driven by physician preference when data are limited or lacking.
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Affiliation(s)
- Lindsy J Forbess
- Department of Rheumatology, Hospital for Special Surgery, New York, USA.
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Lally L, Lebovics R, Huang WT, Spiera RF. A3.32 Efficacy of rituximab for the otolaryngologic manifestations of granulomatosis with polyangiitis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-205124.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Lally L, Narula N, Pernis AB, Huang WT, Udeh U, Spiera RF. A3.33 Increased rho-kinase activity in temporal artery biopsies from patients with giant cell arteritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-205124.126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Bernstein EJ, Mandl LA, Gordon JK, Spiera RF, Horn EM. Submaximal heart and pulmonary evaluation: a novel noninvasive test to identify pulmonary hypertension in patients with systemic sclerosis. Arthritis Care Res (Hoboken) 2013; 65:1713-8. [PMID: 23740875 DOI: 10.1002/acr.22051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 05/23/2013] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Pulmonary hypertension (PH) is a leading cause of death in patients with systemic sclerosis (SSc; scleroderma). Although right-sided heart catheterization (RHC) is the gold standard for diagnosing PH, it is an invasive test with associated risks. The submaximal heart and pulmonary evaluation (step test) is a noninvasive, submaximal stress test that could be used to identify patients with PH. The purpose of this study is to assess the correlation between change in end tidal carbon dioxide (ΔPETCO2 ) from rest to end-exercise on the step test and mean pulmonary artery pressure (mPAP) on RHC in SSc patients. METHODS This is a retrospective cohort study of patients with limited or diffuse cutaneous SSc who were evaluated in an academic cardiology practice between November 2007 and November 2011 and underwent a step test and RHC. Statistical analysis was performed using Spearman's correlation test and multivariable linear regression. RESULTS A total of 679 charts were reviewed. Nineteen SSc patients who underwent a step test and RHC were included. ΔPETCO2 was negatively correlated with mPAP (r = -0.82, P < 0.0001). In a multivariable linear regression model evaluating the relationship between ΔPETCO2 and mPAP, controlling for age, sex, and time between and order of step test and RHC, ΔPETCO2 remained the only variable statistically significantly associated with mPAP (P < 0.001). The step test had a sensitivity of 100%, specificity of 75%, positive predictive value of 93.8%, and negative predictive value of 100% for the diagnosis of PH. CONCLUSION ΔPETCO2 on the step test has a strong, statistically significant negative correlation with mPAP on RHC.
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Xie G, Roshandel D, Sherva R, Monach PA, Lu EY, Kung T, Carrington K, Zhang SS, Pulit SL, Ripke S, Carette S, Dellaripa PF, Edberg JC, Hoffman GS, Khalidi N, Langford CA, Mahr AD, St Clair EW, Seo P, Specks U, Spiera RF, Stone JH, Ytterberg SR, Raychaudhuri S, de Bakker PIW, Farrer LA, Amos CI, Merkel PA, Siminovitch KA. Association of granulomatosis with polyangiitis (Wegener's) with HLA-DPB1*04 and SEMA6A gene variants: evidence from genome-wide analysis. ACTA ACUST UNITED AC 2013; 65:2457-68. [PMID: 23740775 DOI: 10.1002/art.38036] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 05/21/2013] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To identify genetic determinants of granulomatosis with polyangiitis (Wegener's) (GPA). METHODS We carried out a genome-wide association study (GWAS) of 492 GPA cases and 1,506 healthy controls (white subjects of European descent), followed by replication analysis of the most strongly associated signals in an independent cohort of 528 GPA cases and 1,228 controls. RESULTS Genome-wide significant associations were identified in 32 single-nucleotide polymorphic (SNP) markers across the HLA region, the majority of which were located in the HLA-DPB1 and HLA-DPA1 genes encoding the class II major histocompatibility complex (MHC) DPβ chain 1 and DPα chain 1 proteins, respectively. Peak association signals in these 2 genes, emanating from SNPs rs9277554 (for DPβ chain 1) and rs9277341 (DPα chain 1) were strongly replicated in an independent cohort (in the combined analysis of the initial cohort and the replication cohort, P = 1.92 × 10(-50) and 2.18 × 10(-39) , respectively). Imputation of classic HLA alleles and conditional analyses revealed that the SNP association signal was fully accounted for by the classic HLA-DPB1*04 allele. An independent single SNP, rs26595, near SEMA6A (the gene for semaphorin 6A) on chromosome 5, was also associated with GPA, reaching genome-wide significance in a combined analysis of the GWAS and replication cohorts (P = 2.09 × 10(-8) ). CONCLUSION We identified the SEMA6A and HLA-DP loci as significant contributors to risk for GPA, with the HLA-DPB1*04 allele almost completely accounting for the MHC association. These two associations confirm the critical role of immunogenetic factors in the development of GPA.
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Affiliation(s)
- Gang Xie
- Mount Sinai Hospital and University of Toronto, Toronto, Ontario, Canada
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Forbess LJ, Gordon JK, Doobay K, Bosworth BP, Lyman S, Davids ML, Spiera RF. Low prevalence of coeliac disease in patients with systemic sclerosis: a cross-sectional study of a registry cohort. Rheumatology (Oxford) 2013; 52:939-43. [PMID: 23335635 DOI: 10.1093/rheumatology/kes390] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVES Two prior studies suggested that coeliac disease (CD) has a higher prevalence rate (8%) in SSc than in the general population (1%), but these studies were limited by small numbers and the use of traditional coeliac screening antibody tests, where newer ones with improved accuracy have since emerged. Our aim was to determine the prevalence of CD in a larger SSc population using a more modern serological approach to coeliac testing and to correlate coeliac antibody status with gastrointestinal symptoms. METHODS Stored sera from 72 SSc patients in the Scleroderma Registry at the Hospital for Special Surgery were tested for anti-tissue transglutaminase (traditional) and anti-deamidated gliadin peptide (novel) antibodies. If any of these antibodies were positive, anti-endomysial antibodies were tested and confirmatory small-bowel endoscopy and biopsy were obtained. Registry clinical data were used to determine whether antibody status correlated with gastrointestinal symptoms. RESULTS The prevalence of coeliac antibodies in our SSc population was 3/72 (4%). No significant differences with respect to gastrointestinal symptoms were seen in the coeliac antibody-positive compared with -negative SSc patients. No cases of confirmed CD were seen in our cohort. CONCLUSION Contrary to the only two previously published studies, the low prevalence of CD that we found does not suggest that concurrent CD is a common cause of gastrointestinal complaints in SSc patients.
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Affiliation(s)
- Lindsy J Forbess
- Department of Rheumatology, Hospital for Special Surgery, New York, NY, USA.
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Chung SA, Xie G, Roshandel D, Sherva R, Edberg JC, Kravitz M, Dellaripa PF, Hoffman GS, Mahr AD, Seo P, Specks U, Spiera RF, St Clair EW, Stone JH, Plenge RM, Siminovitch KA, Merkel PA, Monach PA. Meta-analysis of genetic polymorphisms in granulomatosis with polyangiitis (Wegener's) reveals shared susceptibility loci with rheumatoid arthritis. ACTA ACUST UNITED AC 2013; 64:3463-71. [PMID: 22508400 DOI: 10.1002/art.34496] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To examine the association of previously identified autoimmune disease susceptibility loci with granulomatosis with polyangiitis (Wegener's) (GPA), and to determine whether the genetic susceptibility profiles of other autoimmune diseases are associated with those of GPA. METHODS Genetic data from 2 cohorts were meta-analyzed. Genotypes for 168 previously identified single-nucleotide polymorphisms (SNPs) associated with susceptibility to different autoimmune diseases were ascertained in a total of 880 patients with GPA and 1,969 control subjects of European descent. Single-marker associations were identified using additive logistic regression models. Associations of multiple SNPs with GPA were assessed using genetic risk scores based on susceptibility loci for Crohn's disease, type 1 diabetes, systemic lupus erythematosus, rheumatoid arthritis (RA), celiac disease, and ulcerative colitis. Adjustment for population substructure was performed in all analyses, using ancestry-informative markers and principal components analysis. RESULTS Genetic polymorphisms in CTLA4 were significantly associated with GPA in the single-marker meta-analysis (odds ratio [OR] 0.79, 95% confidence interval [95% CI] 0.70-0.89, P = 9.8 × 10(-5) ). The genetic risk score for RA susceptibility markers was significantly associated with GPA (OR 1.05 per 1-unit increase in genetic risk score, 95% CI 1.02-1.08, P = 5.1 × 10(-5) ). CONCLUSION RA and GPA may arise from a similar genetic predisposition. Aside from CTLA4, other loci previously found to be associated with common autoimmune diseases were not statistically significantly associated with GPA in this study.
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Clowse MEB, Copland SC, Hsieh TC, Chow SC, Hoffman GS, Merkel PA, Spiera RF, Davis JC, McCune WJ, Ytterberg SR, St Clair EW, Allen NB, Specks U, Stone JH. Ovarian reserve diminished by oral cyclophosphamide therapy for granulomatosis with polyangiitis (Wegener's). Arthritis Care Res (Hoboken) 2012; 63:1777-81. [PMID: 22127969 DOI: 10.1002/acr.20605] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Standard treatment for severe granulomatosis with polyangiitis (Wegener's) (GPA) is daily oral cyclophosphamide (CYC), a cytotoxic agent associated with ovarian failure. In this study, we assessed the rate of diminished ovarian reserve in women with GPA who received CYC versus methotrexate (MTX). METHODS Patients in the Wegener's Granulomatosis Etanercept Trial received either daily CYC or weekly MTX and were randomized to etanercept or placebo. For all women ages <50 years, plasma samples taken at baseline or early in the study were evaluated against samples taken later in the study to compare levels of anti-Müllerian hormone (AMH) and follicle-stimulating hormone (FSH), endocrine markers of remaining egg supply. Diminished ovarian reserve was defined as an AMH level of <1.0 ng/ml. RESULTS Of 42 women in this analysis (mean age 35 years), 24 had CYC exposure prior to enrollment and 28 received the drug during the study. At study entry, women with prior CYC exposure had significantly lower AMH, higher FSH, and a higher rate of early menstruation cessation. For women with normal baseline ovarian function, 6 of 8 who received CYC during the trial developed diminished ovarian reserve, compared to 0 of 4 who did not receive CYC (P < 0.05). Changes in AMH correlated inversely with cumulative CYC dose (P < 0.01), with a 0.74 ng/ml decline in AMH level for each 10 gm of CYC. CONCLUSION Daily oral CYC, even when administered for less than 6 months, causes diminished ovarian reserve, as indicated by low AMH levels. These data highlight the need for alternative treatments for GPA in women of childbearing age.
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Spiera RF, Gordon JK, Mersten JN, Magro CM, Mehta M, Wildman HF, Kloiber S, Kirou KA, Lyman S, Crow MK. Imatinib mesylate (Gleevec) in the treatment of diffuse cutaneous systemic sclerosis: results of a 1-year, phase IIa, single-arm, open-label clinical trial. Ann Rheum Dis 2011; 70:1003-9. [PMID: 21398330 PMCID: PMC3086082 DOI: 10.1136/ard.2010.143974] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Objective To assess the safety and effectiveness of imatinib mesylate in the treatment of diffuse cutaneous systemic sclerosis (dcSSc). Methods In this phase IIa, open-label, single-arm clinical trial, 30 patients with dcSSc were treated with imatinib 400 mg daily. Patients were monitored monthly for safety assessments. Modified Rodnan skin scores (MRSS) were assessed every 3 months. Pulmonary function testing, chest radiography, echocardiography and skin biopsies were performed at baseline and after 12 months of treatment. Results Twenty-four patients completed 12 months of therapy. 171 adverse events (AE) with possible relation to imatinib were identified; 97.6% were grade 1 or 2. Twenty-four serious AE were identified, two of which were attributed to study medication. MRSS decreased by 6.6 points or 22.4% at 12 months (p=0.001). This change was evident starting at the 6-month time point (Δ=−4.5; p<0.001) and was seen in patients with both early and late-stage disease. Forced vital capacity (FVC) improved by 6.4% predicted (p=0.008), and the diffusion capacity remained stable. The improvement in FVC was significantly greater in patients without interstitial lung disease. Health-related quality of life measures improved or remained stable. Blinded dermatopathological analysis confirmed a significant decrease in skin thickness and improvement in skin morphology. Conclusions Treatment with imatinib was tolerated by most patients in this cohort. Although AE were common, most were mild to moderate. In this open-label experience, improvements in skin thickening and FVC were observed. Further investigation of tyrosine kinase inhibition for dcSSc in a double-blind randomised placebo controlled trial is warranted. ClinicalTrials.gov, NCT00555581
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Affiliation(s)
- Robert F Spiera
- Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
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Mahr AD, Edberg JC, Stone JH, Hoffman GS, St Clair EW, Specks U, Dellaripa PF, Seo P, Spiera RF, Rouhani FN, Brantly ML, Merkel PA. Alpha₁-antitrypsin deficiency-related alleles Z and S and the risk of Wegener's granulomatosis. ACTA ACUST UNITED AC 2011; 62:3760-7. [PMID: 20827781 DOI: 10.1002/art.27742] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Deficiency of α(1) -antitrypsin (α(1) AT) may be a determinant of susceptibility to Wegener's granulomatosis (WG). Several previous, mainly small, case-control studies have shown that 5-27% of patients with WG carried the α(1) AT deficiency Z allele. It is not clear whether the S allele, the other major α(1) AT deficiency variant, is associated with WG. This study investigated the relationship of the α(1) AT deficiency Z and S alleles with the risk of developing WG in a large cohort. METHODS We studied the distribution of the α(1) AT deficiency alleles Z and S in 433 unrelated Caucasian patients with WG and 421 ethnically matched controls. Genotyping was performed using an allele discrimination assay. Results were compared between cases and controls using exact statistical methods. RESULTS Among the patients with WG, the allele carriage frequencies of Z and S were 7.4% and 11.5%, respectively. The frequencies of the 6 possible genotypes differed in a statistically significant manner between cases and controls (P = 0.01). The general genetic 2-parameter codominant model provided the best fit to the data. Compared with the normal MM genotype, the odds ratio (OR) for MZ or MS genotypes was 1.47 (95% confidence interval [95% CI] 0.98-2.22), and the OR for ZZ, SS, or SZ genotypes was 14.58 (95% CI 2.33-∞). ORs of similar direction and magnitude were observed within the restricted cohorts that excluded cases and controls carrying ≥1 Z or ≥1 S allele. CONCLUSION Both Z and S alleles display associations with risk of WG in a codominant genetic pattern. These findings strengthen the evidence of a causal link between α(1) AT deficiency and susceptibility to WG.
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Affiliation(s)
- Alfred D Mahr
- Boston University School of Medicine, Boston, Massachusetts, USA
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