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Parodis I, Moroni G, Calatroni M, Bellis E, Gatto M. Is per-protocol kidney biopsy required in lupus nephritis? Autoimmun Rev 2024; 23:103422. [PMID: 37633351 DOI: 10.1016/j.autrev.2023.103422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
Baseline kidney biopsy is recommended in lupus nephritis (LN). Biopsy allows to classify different forms of LN and differentiate other forms of renal involvement, such as tubulo-interstitial nephritis or thrombotic microangiopathy. The indications for repeat biopsy are more controversial. Some authors feel that good clinical monitoring is sufficient to assess prognosis and make therapeutic decisions. Based on the recently demonstrated discordance between clinical and histological response, some physicians recommend per-protocol biopsies either at 6 months in stable patients to verify the response to induction therapy, or after one-to-two years to assess treatment efficacy and tune the duration of maintenance therapy. Others recommend repeating kidney biopsy in case of incomplete response or to discriminate between active and chronic lesions. By definition, a per-protocol kidney biopsy differs from a repeat biopsy in that the former is foreseen at fixed timepoints, regardless of the clinical response. Although any decision should always consider the patient's overall clinical condition, there are no doubts that repeat kidney biopsy represents a useful tool in difficult cases to evaluate treatment response, modulate treatment intensity, and predict long-term renal outcome both in quiescent lupus and during flares. How to harmonize per-protocol biopsies in the LN course remains challenging.
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Affiliation(s)
- Ioannis Parodis
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden; Medical Unit of Gastroenterology, Dermatology, and Rheumatology, Karolinska University Hospital, Stockholm, Sweden; Department of Rheumatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Gabriella Moroni
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele Milan, Italy; Nephrology and Dialysis Division, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan, Italy.
| | - Marta Calatroni
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele Milan, Italy; Nephrology and Dialysis Division, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan, Italy
| | - Elisa Bellis
- Unit of Rheumatology, Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Mariele Gatto
- Unit of Rheumatology, Department of Clinical and Biological Sciences, University of Turin, Turin, Italy; Unit of Rheumatology, Department of Medicine, University of Padua, Padua, Italy
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Tang C, Zhang S, Teymur A, Yang B, Nazir F, Cai Q, Saxena R, Olsen NJ, Mohan C, Wu T. V-Set Immunoglobulin Domain-Containing Protein 4 as a Novel Serum Biomarker of Lupus Nephritis and Renal Pathology Activity. Arthritis Rheumatol 2023; 75:1573-1585. [PMID: 37163449 PMCID: PMC10524163 DOI: 10.1002/art.42545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 05/12/2023]
Abstract
OBJECTIVE To discover novel serum biomarkers that have diagnostic or predictive value in lupus nephritis (LN). METHODS Using a quantitative protein microarray, we screened for high-abundant proteome expression in the serum of patients with LN compared to healthy controls. Top candidates from this screening were validated using a larger cohort of patients with LN compared to a disease control cohort (subjects with other chronic kidney diseases) and a healthy control cohort. Promising markers were then selected using a machine-learning model and further validated with a larger patient cohort. The corresponding autoantibodies and immune complexes containing these proteins were also examined. RESULTS In total, 13 proteins were found to be significantly elevated in LN patient serum in the screening, among which 8 proteins were validated by enzyme-linked immunosorbent assay using 81 serum samples from LN patients and control subjects. Three serum markers with LN diagnostic potential were identified using feature importance analysis and further validated using 155 serum samples from LN patients and control subjects. V-set immunoglobulin domain-containing protein 4 (VSIG4) appeared to be the most promising marker in distinguishing LN from healthy controls, with an area under the curve of 0.93. VSIG4 could also discriminate active LN from inactive LN. Furthermore, serum VSIG4 levels were positively correlated with all of the following clinical parameters: the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) score (Spearman's rank correlation rs = 0.42, P < 0.001), the renal domain score of the SLEDAI (rs = 0.46, P < 0.001), the urinary protein-to-creatinine ratio (rs = 0.56, P < 0.001), and the serum creatinine level (rs = 0.41, P < 0.001). Importantly, we found that serum VSIG4 levels tracked with LN disease activity longitudinally, and that serum VSIG4 levels reflected the renal pathology activity index (AI), particularly the AI components of crescent formation and hyaline deposits. CONCLUSION VSIG4 may be a promising novel serum biomarker and therapeutic target in patients with LN.
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Affiliation(s)
- Chenling Tang
- Department of Biomedical Engineering, University of Houston, Texas, USA
| | - Shu Zhang
- Department of Biomedical Engineering, University of Houston, Texas, USA
| | - Aygun Teymur
- Department of Biomedical Engineering, University of Houston, Texas, USA
| | - Bowen Yang
- Department of Biomedical Engineering, University of Houston, Texas, USA
| | - Fariz Nazir
- Department of Biomedical Engineering, University of Houston, Texas, USA
| | - Qi Cai
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ramesh Saxena
- Division of Nephrology, University of Texas, Southwestern Medical Center, Dallas, Texas, USA
| | - Nancy J. Olsen
- Division of Rheumatology, Department of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Chandra Mohan
- Department of Biomedical Engineering, University of Houston, Texas, USA
| | - Tianfu Wu
- Department of Biomedical Engineering, University of Houston, Texas, USA
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Zeng Y, Xiao Y, Zeng F, Jiang L, Yan S, Wang X, Lin Q, Yu L, Lu X, Zhang Y, Lin Y. Assessment of anti-nucleosome antibody (ANuA) isotypes for the diagnosis and prediction of systemic lupus erythematosus and lupus nephritis activity. Clin Exp Med 2023; 23:1677-1689. [PMID: 36385418 DOI: 10.1007/s10238-022-00942-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 11/03/2022] [Indexed: 11/17/2022]
Abstract
Our study aims to investigate the serum levels of anti-nucleosome antibody (ANuA) isotypes in patients with systemic lupus erythematosus (SLE) and clarify ANuA isotypes that may diagnose and predict SLE. We detected anti-nucleosome antibodies (ANuA) in the serum from 120 patients with SLE, 99 patients suffering from other autoimmune diseases (OAD), and 50 healthy controls by performing IgG-, IgA-, and IgM-specific ELISAs. The serum levels of total anti-nuclear antibodies (ANA IgG), ANuA IgG subclasses (IgG1, IgG2, IgG3, and IgG4), anti-dsDNA antibodies, and the avidities of ANA IgG were also analysed using ELISAs. The levels of three ANuA isotypes (IgG, IgA, and IgM) were significantly higher in patients with SLE than in patients with OAD and healthy controls (p < 0.05). Moreover, the concentrations of ANuA isotypes increased in the active SLE and lupus nephritis (LN) groups and in patients with SLE presenting high-avidity IgG ANA (p < 0.05). Furthermore, ANuA isotype levels decreased significantly with drug therapy, while anti-dsDNA IgG levels decreased with the same trend. Additionally, ANuA isotypes were positively related to the SLEDAI (SLE Disease Activity Index) score, RAI (relative avidity index) of high-avidity IgG ANAs, and serum anti-dsDNA IgG levels. Last, the sensitivity and specificity values for SLE were 83.33 and 96.67% for ANuA IgG, 85.83 and 93.33% for ANuA IgA, and83.33 and 86.67% for ANuA IgM, respectively. The sensitivity and specificity values for LN were 61.67 and 96.67% for ANuA IgG, 49.17 and 96.67% for ANuA IgA, and 52.50 and 96.67% for ANuA IgM, respectively. In conclusion, we evaluated whether ANuA isotypes represent a diagnostic tool to predict SLE activity and define subsets of patients with LN.
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Affiliation(s)
- Yanli Zeng
- Center of Clinical Laboratory, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China.
| | - Yun Xiao
- Center of Clinical Laboratory, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Fanxiang Zeng
- Department of Pharmacy, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350001, China
| | - Longcan Jiang
- Center of Clinical Laboratory, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Shuidi Yan
- Center of Clinical Laboratory, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Xuelian Wang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Qiaoduan Lin
- Department of Ultrasonography, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Liang Yu
- Department of Ultrasonography, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Xinxin Lu
- Center of Clinical Laboratory, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Yan Zhang
- Center of Clinical Laboratory, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Yiqiang Lin
- Center of Clinical Laboratory, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361004, China.
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Abdelaziz TS, Rakha NK, Fayad T, Mahmoud GA, Fayed A, Hammad H. Seasonal variation of lupus nephritis in a cohort of Egyptian patients. Clin Rheumatol 2023; 42:1013-1018. [PMID: 36385599 PMCID: PMC10017577 DOI: 10.1007/s10067-022-06442-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/31/2022] [Accepted: 11/07/2022] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Systemic lupus erythematosus is an autoimmune multisystem disease; renal affection is one of its most common manifestations. The effect of environmental factors on lupus nephritis flares is not fully understood. METHODS This is a retrospective study that included 200 patients with lupus nephritis flares. All patients had confirmed diagnosis of lupus nephritis on histopathological examination. Lupus nephritis flares were defined by either (1) nephritic flare: defined as increased proteinuria or serum creatinine concentration; abnormal urinary sediment or a reduction in creatinine clearance, or (2) proteinuria flare defined as persistent increase in proteinuria > 0.5-1.0 g/day after achieving complete remission; doubling to > 1 g/day after achieving partial remission. The time of renal flare (month of the year) was recorded to determine the effect of seasonal variation on lupus nephritis flares. RESULTS The median age for the patients was 33 years (IQR = 13); 92% of patients were females. The median duration of lupus was 7 years (IQR = 6). The median serum creatinine was 1.4 mg/dl, median serum urea level was 32, and median UPCR was 2.4 gm/dl. The highest incidence of flares occurred in June (14%) and July (12.5%) (p = 0.003). CONCLUSION Seasonal pattern of LN flare was observed in our study in Egyptian cohort of patients, with most flares observed during meteorological summertime. Larger studies are needed to confirm this seasonal pattern. Key Points • Flares of lupus nephritis are common in patients with systemic lupus erythromatosus. • A seasonal pattern of flares of lupus nephritis was observed in our study. This seasonal pattern has been observed by previous studies in variable ethnicities and variable climatic circumstances.
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Affiliation(s)
- Tarek Samy Abdelaziz
- Department of Renal Medicine, KasrAlainy University Hospitals-Cairo University, AlSaraystreet, El Manial, Cairo, Egypt.
| | - Nehal K Rakha
- Department of Renal Medicine, KasrAlainy University Hospitals-Cairo University, AlSaraystreet, El Manial, Cairo, Egypt
| | - Tarek Fayad
- Department of Renal Medicine, KasrAlainy University Hospitals-Cairo University, AlSaraystreet, El Manial, Cairo, Egypt
| | - Geilan A Mahmoud
- Department of Rheumatology, Cairo University Hospitals, Cairo, Egypt
| | - Ahmed Fayed
- Department of Renal Medicine, KasrAlainy University Hospitals-Cairo University, AlSaraystreet, El Manial, Cairo, Egypt
| | - Hany Hammad
- Department of Renal Medicine, KasrAlainy University Hospitals-Cairo University, AlSaraystreet, El Manial, Cairo, Egypt
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David BL, Ivan GNJ, Emilio PGE, Daniela MSJ, Betsabe CH, Luisa VVM, Selene FRN, Guadalupe ACEA, Miriam SCA, Alfredo C, Arturo NVC, Mercedes HCD, German CME, Gonzalez-Lopez L. Low serum uromodulin levels and their association with lupus flares. PLoS One 2022; 17:e0276481. [PMID: 36301848 PMCID: PMC9612514 DOI: 10.1371/journal.pone.0276481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/07/2022] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Only two previous studies in systemic lupus erythematosus (SLE) patients have identified that the blood concentrations of uromodulin are lower in nephritis. However, none of them had evaluated whether a low serum uromodulin adjusted by the glomerular filtration rate (sUromod/eGFR index) contributed to identify patients in risk of lupus nephritis (LN) using multivariable models. AIM Therefore, this study aimed two objectives to evaluate the association between low serum uromodulin levels and low sUromod adjusted by eGFR with renal flares in SLE excluding effects of potential confounders in multivariable analyses; and to identify the value of low sUmod and low sUmod/eGFR index as a potential diagnostic marker of LN. PATIENTS AND METHODS Design: Cross-sectional study. SLE patients (n = 114) were investigated for lupus flare with renal SLEDAI. Two groups: a) SLE with renal flare (renal-SLEDAI≥4, n = 41) and b) SLE non-renal flare (renal SLEDAI<4, n = 73). SLE patients were evaluated by other indices including a global disease activity index (SLEDAI) and SLICC renal disease activity score. Serum uromodulin levels (ng/mL) were quantified by ELISA. Serum uromodulin was adjusted by eGFR (sUromod/eGFR index). Cutt-offs of low sUromodulin and low sUromod/eGFR index were computed, ROC curves were performed and values of diagnostic tests were obtained. Multivariable logistic regression models were performed to identify if low sUromod/eGFR index is associated to renal flares. RESULTS Low serum uromodulin and low sUromod/eGFR index correlated to high scores of renal-SLEDAI, SLICC-renal and proteinuria. SLE patients with a renal flare had lower uromodulin levels compared to SLE patients without renal flare (p = 0.004). After adjusting by potential confounders, the low sUromod/eGFR index (<0.80 ng/mL) increased the risk of a renal flare (OR, 2.91; 95%CI, 1.21 to 6.98; p = 0.02). CONCLUSIONS We propose the low sUromod/eGFR index as a potential new marker of renal disease activity in SLE.
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Affiliation(s)
- Bonilla-Lara David
- Programa de Doctorado en Farmacología, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Gamez-Nava Jorge Ivan
- Programa de Doctorado en Farmacología, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Programa de Doctorado en Salud Publica, Departamento de Salud Pública, Centro Universitario de Ciencias de la Salud, Departamento de Salud Pública, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Research Group of Factors Related to Therapeutic Outcomes in Autoimmune Diseases, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Perez-Guerrero Edsaul Emilio
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Murillo-Saich Jessica Daniela
- Department of Medicine, School of Medicine, University of California, San Diego, California, United States of America
| | - Contreras-Haro Betsabe
- División de Ciencias de la Salud, Centro Universitario de Tonalá, Universidad de Guadalajara, Tonalá, Jalisco, México
| | - Vazquez-Villegas Maria Luisa
- Programa de Doctorado en Salud Publica, Departamento de Salud Pública, Centro Universitario de Ciencias de la Salud, Departamento de Salud Pública, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Research Group of Factors Related to Therapeutic Outcomes in Autoimmune Diseases, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Departamento de Epidemiología, Unidad de Medicina Familiar N°, 4, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, México
| | - Fajardo-Robledo Nicte Selene
- Research Group of Factors Related to Therapeutic Outcomes in Autoimmune Diseases, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Laboratorio de Investigación y Desarrollo Farmacéutico, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Aguilar-Chavez Erika Anita Guadalupe
- Department of Medicine, School of Medicine, University of California, San Diego, California, United States of America
- Unidad de Medicina Familiar No. 2, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, México
| | - Saldaña-Cruz Ana Miriam
- Research Group of Factors Related to Therapeutic Outcomes in Autoimmune Diseases, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Celis Alfredo
- Programa de Doctorado en Salud Publica, Departamento de Salud Pública, Centro Universitario de Ciencias de la Salud, Departamento de Salud Pública, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Nava-Valdivia Cesar Arturo
- Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | | | - Cardona-Muñoz Ernesto German
- Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Laura Gonzalez-Lopez
- Programa de Doctorado en Farmacología, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Research Group of Factors Related to Therapeutic Outcomes in Autoimmune Diseases, Instituto de Terapéutica Experimental y Clínica, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
- Departamento de Medicina Interna-Reumatología, Hospital General Regional 110 Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, México
- * E-mail: ,
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Sada K, Kurita N, Noma H, Matsuki T, Quasny H, Levy RA, Jones-Leone AR, Gairy K, Yajima N. MOONLIGHT study: the design of a comparative study of the effectiveness of belimumab in patients with a history of lupus nephritis from the post-Marketed effectiveness of belimumab cOhOrt and JapaN Lupus NatIonwide reGistry (LUNA) coHorT. Lupus Sci Med 2022; 9:9/1/e000746. [PMID: 37017254 PMCID: PMC9438087 DOI: 10.1136/lupus-2022-000746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/23/2022] [Indexed: 11/18/2022]
Abstract
Introduction Lupus nephritis (LN) is more prevalent in patients with SLE of Asian ethnicity than in Caucasian patients. Belimumab became available in Japan in 2017 to treat patients with SLE, including those with LN. In the BLISS-LN trial (NCT01639339), belimumab showed a favourable effect on renal outcomes when combined with standard therapy (ST) starting at the induction treatment phase for active LN, but real-world effectiveness of belimumab in LN has not been extensively studied. Here we describe the protocol for the MOONLIGHT (post-Marketed effectiveness of belimumab cOhOrt and JapaN Lupus NatIonwide ReGistry (LUNA) coHorT) study, which will use data from a Japan postmarketing surveillance study and the Lupus Registry of Nationwide Institutions (LUNA) to evaluate the real-world effectiveness of belimumab plus ST versus ST alone in patients with a history of active LN who are not in the induction phase. Methods and analysis This multicentre, retrospective, observational study (GSK Study 214710) will enrol adults with SLE and a history of active LN, holding ≥3 years of complete follow-up data from the initiation of belimumab (no continuous treatment required). Data for patients with belimumab plus ST treatment (postmarketing registry data, belimumab cohort) will be compared with those for patients with ST only treatment (LUNA data, comparison cohort). Patients who discontinue/initiate belimumab after the start of the follow-up may be included in the comparison/belimumab cohort, respectively. The primary endpoint will be the occurrence of renal flares, for which belimumab’s effectiveness will be estimated using a marginal structural model to consider time-dependent treatment and confounding factors. Secondary endpoints will include change in corticosteroid dose, renal disease activity, extrarenal disease activity, disease severity/activity biomarkers, LN class changes, end-stage kidney disease events and hospitalisations. Ethics and dissemination This study will be conducted according to the Declaration of Helsinki and the local ethical guidelines. Findings will be submitted to peer-reviewed journals and presented at scientific meetings.
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Affiliation(s)
- Kenei Sada
- Department of Clinical Epidemiology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Noriaki Kurita
- Department of Innovative Research and Education for Clinicians and Trainees (DiRECT), Fukushima Medical University Hospital, Fukushima, Japan
- Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Hisashi Noma
- Department of Data Science, The Institute of Statistical Mathematics, Tokyo, Japan
| | - Taizo Matsuki
- Value Evidence and Outcomes Division, GSK K.K, Tokyo, Japan
| | - Holly Quasny
- Clinical Sciences, GSK, Research Triangle Park, North Carolina, USA
| | - Roger A Levy
- Global Medical Affairs, GSK, Collegeville, Pennsylvania, USA
| | | | - Kerry Gairy
- Value Evidence and Outcomes Division, GSK, Brentford, UK
| | - Nobuyuki Yajima
- Division of Rheumatology, Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan
- Department of Healthcare Epidemiology, Kyoto University Graduate School of Medicine and Public Health, Kyoto, Japan
- Center for Innovative Research for Communities and Clinical Excellence, Fukushima Medical University, Fukushima, Japan
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7
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Jourde-Chiche N, Costedoat-Chalumeau N, Baumstarck K, Loundou A, Bouillet L, Burtey S, Caudwell V, Chiche L, Couzi L, Daniel L, Deligny C, Dussol B, Faguer S, Gobert P, Gondran G, Huart A, Hummel A, Kalbacher E, Karras A, Lambert M, Le Guern V, Lebourg L, Loubière S, Maillard-Lefebvre H, Maurier F, Pha M, Queyrel V, Remy P, Sarrot-Reynauld F, Verhelst D, Hachulla E, Amoura Z, Daugas E. Weaning of maintenance immunosuppressive therapy in lupus nephritis (WIN-Lupus): results of a multicentre randomised controlled trial. Ann Rheum Dis 2022; 81:1420-1427. [PMID: 35725295 PMCID: PMC9484365 DOI: 10.1136/annrheumdis-2022-222435] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/07/2022] [Indexed: 11/05/2022]
Abstract
Objectives Lupus nephritis (LN) is a frequent complication of systemic lupus erythematosus (SLE). Severe (proliferative) forms of LN are treated with induction immunosuppressive therapy (IST), followed by maintenance IST, to target remission and avoid relapses. The optimal duration of maintenance IST is unknown. The WIN-Lupus trial tested whether IST discontinuation after 2‒3 years was non-inferior to IST continuation for two more years in proliferative LN. Methods WIN-Lupus was an investigator-initiated multicentre randomised controlled trial. Patients receiving maintenance IST with azathioprine or mycophenolate mofetil for 2–3 years, and hydroxychloroquine, were randomised (1:1) into two groups: (1) IST continuation and (2) IST discontinuation. The primary endpoint was the relapse rate of proliferative LN at 24 months. Main secondary endpoints were the rate of severe SLE flares, survival without renal relapse or severe flare, adverse events. Results Between 2011 and 2016, 96 patients (out of 200 planned) were randomised in WIN-Lupus: IST continuation group (n=48), IST discontinuation group (n=48). Relapse of proliferative LN occurred in 5/40 (12.5%) patients with IST continuation and in 12/44 (27.3%) patients with IST discontinuation (difference 14.8% (95% CI −1.9 to 31.5)). Non-inferiority was not demonstrated for relapse rate; time to relapse did not differ between the groups. Severe SLE flares (renal or extrarenal) were less frequent in patients with IST continuation (5/40 vs 14/44 patients; p=0.035). Adverse events did not differ between the groups. Conclusions Non-inferiority of maintenance IST discontinuation after 2‒3 years was not demonstrated for renal relapse. IST discontinuation was associated with a higher risk of severe SLE flares. Trial registration number NCT01284725.
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Affiliation(s)
- Noemie Jourde-Chiche
- Nephrology, AP-HM, Marseille, France .,C2VN, INSERM, INRAE, Aix-Marseille Universite, Marseille, France
| | - Nathalie Costedoat-Chalumeau
- entre de recherche épidémiologie et biostatistiques de Sorbonne Paris Cité, Universite de Paris, Paris, France.,Centre de référence maladies rares, Hôpital Cochin, AP-HP, Paris, France
| | - Karine Baumstarck
- Laboratoire de Santé Publique, CERESS, Aix-Marseille Universite, Marseille, France
| | - Anderson Loundou
- Laboratoire de Santé Publique, CERESS, Aix-Marseille Universite, Marseille, France
| | - Laurence Bouillet
- Internal Medicine, Centre Hospitalier Universitaire Grenoble, Michallon Hospital, Grenoble, France
| | - Stéphane Burtey
- C2VN, INSERM, INRAE, Aix-Marseille Universite, Marseille, France.,Nephrology, AP-HM, Marseille, France
| | | | | | - Lionel Couzi
- Nephrology, CHU Bordeaux GH Pellegrin, Bordeaux, France
| | - Laurent Daniel
- C2VN, INSERM, INRAE, Aix-Marseille Universite, Marseille, France.,Laboratoire d'Anatomie Pathologique, AP-HM, Marseille, France
| | | | - Bertrand Dussol
- Nephrology, AP-HM, Marseille, France.,Centre d'Investigation Clinique, AP-HM, Marseille, France
| | - Stanislas Faguer
- Nephrology and Organ Transplantation, CHU Toulouse, Toulouse, France
| | | | | | - Antoine Huart
- Nephrology and Organ Transplantation, CHU Toulouse, Toulouse, France
| | - Aurélie Hummel
- Nephrology, Necker-Enfants Malades Hospitals, Paris, France
| | | | - Adexandre Karras
- Nephrology, Hopital Europeen Georges Pompidou, Paris, France.,Universite Paris Descartes, Paris, France
| | | | | | | | - Sandrine Loubière
- Support Unit for Clinical Research and Health Economics, AP-HM, Marseille, France
| | | | | | - Micheline Pha
- Médecine Interne 2, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, Paris, France
| | | | | | | | | | - Eric Hachulla
- Internal Medicine, Lille University School of Medicine, Lille, France
| | - Zahir Amoura
- Centre de reference maladies auto-immunes et systemiques, Internal Medicine, AP-HP, Paris, France
| | - Eric Daugas
- Nephrology, AP-HP, Paris, France.,INSERM U1149, Universite de Paris, Paris, France
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8
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Duran E, Yıldırım T, Taghiyeva A, Bilgin E, Arıcı M, Sağlam EA, Özen S, Üner M, Erdem Y, Kalyoncu U, Ertenli AI. Differences and similarities of proliferative and non-proliferative forms of biopsy-proven lupus nephritis: Single centre, cross-disciplinary experience. Lupus 2022; 31:1147-1156. [PMID: 35658643 PMCID: PMC9277329 DOI: 10.1177/09612033221106305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE We aimed to compare clinical features, outcomes, treatments, and to define the predictive factors of complete renal response (CRR) in patients with proliferative and non-proliferative lupus nephritis (LN). METHODS Patients with systemic lupus erythematosus (SLE) followed between 2014 and 2020 at Hacettepe University Hospitals and who had a kidney biopsy were the subject of the study. One hundered and sixteen patients' kidney biopsies reported as LN were evaluated retrospectively. Clinical characteristics and laboratory values at the time of kidney biopsy, histopathological forms of LN, and renal response (complete or partial) were recorded. We analyzed the association between CRR rates during the 2-year follow-up after induction therapy and the predictive factors for CRR. RESULTS Of 116 (93 females, 23 males) patients, 95 (81.9%) were in the proliferative group (class III and IV) and 21 (18.1%) were in the non-proliferative group (class II and V). In the proliferative group, the percentage of the patients with elevated basal creatinine levels, median daily proteinuria, anti-double-stranded DNA (dsDNA) positivity, low C3 and C4 levels, the presence of active urinary sediment, and median renal SLE Disease Activity Index (SLEDAI) scores at the time of kidney biopsy were significantly higher than the non-proliferative group. Renal response status during the 2-year follow-up after induction therapy was available for 99 patients. During this time, 70 (70.7%) patients had achieved CRR and time-to-CRR was similar between the proliferative and non-proliferative groups (p = 0.64, log-rank test). The Cox proportional hazards model showed that achievement of CRR was associated with female gender [HR: 2.15 (1.19-3.89 95% CI), p = 0.011], newly diagnosed SLE with renal biopsy [HR: 2.15 (1.26-3.67 95% CI), p = 0.005], hypertension [HR: 0.40 (0.27-0.94 95% CI), p = 0.032], eGFR increase [HR: 1.01 (1.00-1.01 95% CI), p = 0.046], and the presence of active urinary sediment [HR: 0.46 (0.22-0.96 95% CI), p = 0.039]. CONCLUSIONS Achieving CRR was similar in proliferative and non-proliferative LN patients, although certain laboratory parameters differed at the onset. Our results indicated the importance of kidney biopsy in the decision-making of treatment of SLE patients with renal involvement and that the defined factors associated with CRR achievement help to predict good renal response.
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Affiliation(s)
- Emine Duran
- Department of Internal Medicine, Division of Rheumatology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Tolga Yıldırım
- Department of Internal Medicine, Division of Nephrology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Arzu Taghiyeva
- Department of Internal Medicine, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Emre Bilgin
- Department of Internal Medicine, Division of Rheumatology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mustafa Arıcı
- Department of Internal Medicine, Division of Nephrology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Emine Arzu Sağlam
- Department of Pathology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Seza Özen
- Department of Pediatrics, Division of Rheumatology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Meral Üner
- Department of Pathology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Yunus Erdem
- Department of Internal Medicine, Division of Nephrology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Umut Kalyoncu
- Department of Internal Medicine, Division of Rheumatology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ali Ihsan Ertenli
- Department of Internal Medicine, Division of Rheumatology, RinggoldID:64005Hacettepe University Faculty of Medicine, Ankara, Turkey
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9
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Boussetta A, Louati D, Jellouli M, Gaied H, Mabrouk S, Maalej B, Zouaghi K, Goucha R, Gargah T. Lupus Nephritis in Tunisian Children: Predictive Factors of Poor Outcomes. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2022; 33:440-448. [PMID: 37843146 DOI: 10.4103/1319-2442.385968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a multisystem autoimmune disorder of unknown etiology. Lupus nephritis (LN) is one of the most severe clinical manifestations observed in patients with SLE; it is more frequent and more severe in children than in adults. The aim of our study was to assess the predictive factors of poor outcomes in Tunisian children with LN. This was a multicenter retrospective observational study on 40 pediatric patients with biopsy-proven LN from five nephrology departments in Tunisia. The patients were 12.33 ± 3.3 years of age at the time of their kidney biopsy. Eleven patients developed end-stage renal disease (ESRD) (27.5%), and seven patients died. Overall, 18 (45%) patients reached our composite endpoint (ESRD or death). An age at diagnosis of more than 14 years, elevated serum creatinine at the time of the kidney biopsy, the existence of wire loops, thromboembolic complications as well as infectious complications are the most important clinical features associated with an increased risk of ESRD. Predictive factors of death were a baseline creatinine level of more than 2.26 mg/dL, a high proteinuria at baseline, fibrous crescents determined by renal biopsy, thromboembolic complications, infectious compli-cations, and ESRD. In summary, our results suggest that early and appropriate management is the best guarantee of a good renal outcome in children with LN.
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Affiliation(s)
- Abir Boussetta
- Department of Pediatric Nephrology, Charles Nicolle Hospital; Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Dalia Louati
- Department of Pediatrics Hedi Chaker Hospital, Sfax, Tunisia
| | - Manel Jellouli
- Department of Pediatric Nephrology, Charles Nicolle Hospital; Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Hanen Gaied
- Faculty of Medicine of Tunis, University of Tunis El Manar; Department of Nephrology, Mongi Slim Hospital, Tunis, Tunisia
| | - Sameh Mabrouk
- Department of Pediatrics, Sahloul Hospital, Sousse, Tunisia
| | - Bayen Maalej
- Department of Pediatrics Hedi Chaker Hospital, Sfax, Tunisia
| | - Karim Zouaghi
- Faculty of Medicine of Tunis, University of Tunis El Manar; Department of Nephrology, Rabta Hospital, Tunis, Tunisia
| | - Rym Goucha
- Faculty of Medicine of Tunis, University of Tunis El Manar; Department of Nephrology, Mongi Slim Hospital, Tunis, Tunisia
| | - Tahar Gargah
- Department of Pediatric Nephrology, Charles Nicolle Hospital; Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
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10
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Zeng Y, Lin Q, Yu L, Wang X, Lin Y, Zhang Y, Yan S, Lu X, Li Y, Li W, Xiao Y. Chemokine CXCL1 as a potential marker of disease activity in systemic lupus erythematosus. BMC Immunol 2021; 22:82. [PMID: 34961474 PMCID: PMC8711184 DOI: 10.1186/s12865-021-00469-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/30/2021] [Indexed: 11/10/2022] Open
Abstract
Objectives The chemokine CXCL1, known as growth-related oncogene α (GRO-α), is a potent chemoattractant and regulator of neutrophils. The purpose of our study was to evaluate the regulatory response of CXCL1 in the serum of patients with systemic lupus erythematosus (SLE) in the active stage of disease and to assess whether it was implicated in the pathogenesis/inflammatory process in lupus. Methods CXCL1 serum concentrations were examined in 90 SLE patients, 56 other autoimmune diseases (OADs) patients and 100 healthy controls using enzyme-linked immunosorbent methodology. Results SLE patients exhibited significant increases in serum CXCL1 concentrations [1492.86 (735.47–2887.34) pg/ml] compared with OADs patients [155.88 (10.77–366.78) pg/ml] and healthy controls [13.58 (8.46–37.22) pg/ml] (p < 0.001). Moreover, the level of CXCL1 decreased as the level of anti-dsDNA IgG decreased after treatment between the anti-dsDNA-positive SLE patients and the anti-dsDNA-negative SLE patients. Additionly, serum CXCL1 concentrations were related to different disease activity levels in SLE and lupus nephritis (LN) and high avidity of IgG ANAs (HA IgG ANAs) (p < 0.05). Furthermore, CXCL1 serum concentrations were significantly correlated with the SLE Disease Activity Index(SLEDAI) score, relative avidity index (RAI) of HA IgG ANAs and the levels of anti-dsDNA IgG, CRP, ESR, albumin, C3 and C4.Additionally, Statistical analysis revealed that positivity for IgG ANA (p < 0.001), the presence of HA IgG ANAs (p = 0.001) and the logarithmic level of anti-dsDNA IgG (p = 0.021) were significantly associated with the logarithmic level of CXCL1 with standard partial regression coefficients (95% CI) of 2.371 (1.734–3.009), 1.231 (0.52–1.937) and 0.409 (0.062–0.755), respectively. Finally, using cutoff points of 1182.17 pg/mL and 1500.31 pg/mL, serum CXCL1 levels had a similar sensitivity of 76% and specificity of 100% and 75% for the diagnosis of active SLE and LN, respectively. Conclusions Serum CXCL13 concentrations might represent a potential marker of disease activity in systemic lupus erythematosus.
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Affiliation(s)
- Yanli Zeng
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China.
| | - Qiaoduan Lin
- Ultrasonography Department, Zhongshan Hospital of Xiamen University, Xiamen, 361004, China
| | - Liang Yu
- Ultrasonography Department, Zhongshan Hospital of Xiamen University, Xiamen, 361004, China
| | - Xuelian Wang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, Xiamen, 361004, China
| | - Yiqiang Lin
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Yan Zhang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Shuidi Yan
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Xinxin Lu
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Yijing Li
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Weibin Li
- Institute for Laboratory Medicine, The 900Th Hospital of Joint Logistic Support Force, Fuzhou, 350025, China.
| | - Yun Xiao
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China.
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11
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Biesen R, Frese-Schaper M, Enghard P, Cheng Q, Hiepe F, Frese S. Refractory mixed proliferative and membranous lupus nephritis treated with the topoisomerase I inhibitor irinotecan as add-on therapy. Scand J Rheumatol 2021; 51:237-240. [PMID: 34726116 DOI: 10.1080/03009742.2021.1980979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To evaluate the safety and effects of irinotecan, an inhibitor of topoisomerase I, on refractory lupus nephritis. METHOD A patient with refractory lupus nephritis under medication with mycophenolic acid, prednisolone, and hydroxychloroquine was treated with add-on low-dose irinotecan. Irinotecan was applied every fourth week at a dose of 50 mg/m2 for four cycles followed by 100 mg/m2 for another eight cycles. Renal function and anti-double-stranded DNA antibodies as well as blood count for evaluation of side effects were assessed during the treatment with irinotecan. RESULTS Before starting the treatment with irinotecan, a urine protein/creatinine ratio of 1298 mg/g was determined. This declined to 613 mg/g after four cycles with 50 mg/m2 irinotecan and was further reduced to 198 mg/g when using the higher dose of irinotecan. Kidney function remained stable, with creatinine levels of 1.66 mg/dL at the beginning and 1.76 mg/dL at the end of treatment with irinotecan. Importantly, no side effects, such as diarrhoea or neutropenia, were observed during the entire course of treatment. CONCLUSION Administration of low-dose irinotecan as add-on medication for the treatment of refractory lupus nephritis was shown to be safe. Clinical trials are needed to determine whether irinotecan can improve kidney function and the outcome of patients with refractory lupus nephritis.
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Affiliation(s)
- R Biesen
- Department of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - M Frese-Schaper
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz Institute, Berlin, Germany
| | - P Enghard
- Department of Nephrology and Intensive Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Q Cheng
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz Institute, Berlin, Germany
| | - F Hiepe
- Department of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany.,Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz Institute, Berlin, Germany
| | - S Frese
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz Institute, Berlin, Germany.,Department of Thoracic Surgery, Lungenklinik Lostau, Lostau, Germany
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12
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Mittal A, Bamnawat H, Nalwa A, Vishwajeet V, Kumar P, Didel S, Goel AD, Singh K. Pediatric onset lupus nephritis in western India-is it different from the rest of the country? Lupus 2021; 30:2008-2016. [PMID: 34558344 DOI: 10.1177/09612033211045069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AIM To determine the clinicopathological characteristics and outcomes of children diagnosed with lupus nephritis in a tertiary hospital in western Rajasthan and compare it with the data available from other parts of India. MATERIAL AND METHODS A retrospective review of children presenting to a tertiary care center in western Rajasthan, India, with a diagnosis of pediatric Systemic Lupus Erythematosus (p SLE), between July 2017 and July 2020 was done. Comparisons of pediatric lupus in western India to other parts of country were done. RESULTS 19 children with SLE with Renal involvement were enrolled and followed up. The median age at presentation was 15 years (IQR-16-9.5) (73% females). 8/19 (42%) children presented with AKI, of which 62% children presented as rapidly progressive renal failure. Six (37.5%) patients required dialysis at presentation. 84.21% of children were evaluated with renal biopsy, 16 biopsies were done in 19 children, among which class II, III, and IV lupus nephritis were reported in 21%,42%, and 35% respectively(4 crescentic). Antiphospholipid antibodies were positive in 8/15(53%), children which is much higher than a reported incidence of 30% in other Indian studies. Ten patients (52%) had neurological involvement, with seizures being the most common form of presentation (60%). Seven patients (36%) developed hepatitis. We noted many uncommon presentations in the small group like Autoimmune Pancreatitis, Mononeuritis multiplex, and peripheral digital gangrene. Cyclophosphamide was used in 10 out of 19 patients for inducing remission with class 3 and 4 nephritis and MMF in 8 children. 55% patients attained remission (after completing induction), of which 4 relapsed during the follow up. Four patients were lost to follow-up. A total of 27% patients died and 10% patients developed end stage renal failure. It was seen that those who died had more cardiac and neurological involvement at presentation, higher grade of proteinuria, lower GFR, and need for dialysis at admission. CONCLUSION We found a more severe form of clinical manifestation in pediatric SLE patients at the time of the first presentation in the form of severe renal and extrarenal manifestation compared to other parts of the country.
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Affiliation(s)
- Aliza Mittal
- Department of Pediatrics, 410730All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan
| | - Harshita Bamnawat
- Department of Pediatrics, 410730All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan
| | - Aasma Nalwa
- Department of Pathology, 410730All India Institute of Medical Sciences, Jodhpur, Rajasthan
| | - Vikarn Vishwajeet
- Department of Pathology, 410730All India Institute of Medical Sciences, Jodhpur, Rajasthan
| | - Prawin Kumar
- Department of Pediatrics, 410730All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan
| | - Siyaram Didel
- Department of Pediatrics, 410730All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan
| | - Akhil Dhanesh Goel
- Department of Community Medicine and Family Medicine, 410730All India Institute of Medical Sciences, Jodhpur, Rajasthan
| | - Kuldeep Singh
- Department of Pediatrics, 410730All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan
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13
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Zickert A, Lannfelt K, Schmidt Mende J, Sundelin B, Gunnarsson I. Resorption of immune deposits in membranous lupus nephritis following rituximab vs conventional immunosuppressive treatment. Rheumatology (Oxford) 2021; 60:3443-3450. [PMID: 33367774 DOI: 10.1093/rheumatology/keaa788] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/26/2020] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Studies on repeat renal biopsies in membranous LN (MLN) are limited, and evaluation of treatment response is mainly based on proteinuria. EM of renal biopsies from rituximab (RTX)-treated MLN patients has revealed resorption of sub-epithelial ICs. Whether resorption phenomena are useful for treatment evaluation, or differs between treatment regimens is not known. We studied EM findings and clinical treatment response in MLN patients after RTX vs conventional immunosuppressive treatment. METHODS Twenty-four patients with MLN and renal biopsies performed before and after treatment were included in this retrospective observational study. Laboratory data were collected at both biopsy occasions. Seven patients had received RTX and 17 had received conventional treatment (CYC, MMF or AZA). Electron micrographs of renal tissue were scored using an arbitrary scale (0-3) for the level of sub-epithelial ICs, resorption of ICs and podocyte fusion. RESULTS Sub-epithelial ICs decreased after treatment, however not significantly and with no difference between treatments. The resorption phenomena increased after RTX (P = 0.028), but not after conventional therapy (P = 0.29). Six out of seven (86%) RTX-treated patients had increased resorption vs 7/17 (41%) after conventional therapies (P = 0.047). Clinical responders had more pronounced resorption of ICs vs non-responders (P = 0.022). CONCLUSIONS We report increased resorption of ICs in repeat renal biopsies in MLN, especially after RTX treatment. Increased resorption phenomena were associated with clinical response, suggesting that EM findings may be useful for treatment evaluation in MLN. Although of limited size, the study indicates that RTX is effective both clinically and at a tissue level.
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Affiliation(s)
- Agneta Zickert
- Department of Medicine, Division of Rheumatology, Karolinska Institutet.,Rheumatology Unit
| | - Klas Lannfelt
- Department of Medicine, Division of Rheumatology, Karolinska Institutet
| | - Jan Schmidt Mende
- Department of Clinical Pathology and Cytology, Karolinska University Hospital, Stockholm, Sweden
| | - Birgitta Sundelin
- Department of Clinical Pathology and Cytology, Karolinska University Hospital, Stockholm, Sweden
| | - Iva Gunnarsson
- Department of Medicine, Division of Rheumatology, Karolinska Institutet.,Rheumatology Unit
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14
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Zeng Y, Zhang Y, Lin Y, Wang X, Chen Q, Huang Q, Wang J, Jiang L, Xiao Y. The CXCL13 chemokine serves as a potential biomarker to diagnose systemic lupus erythematosus with disease activity. Clin Exp Med 2021; 21:611-619. [PMID: 33844093 DOI: 10.1007/s10238-021-00707-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Abstract
The aim of our study was to assess the regulatory response of the chemokine CXCL13 in the serum of systemic lupus erythematosus (SLE) patients with disease activity and to evaluate its influence on the inflammatory process in SLE. Serum samples from 97 SLE patients, 49 non-SLE patients (23 patients with other autoimmune diseases and 26 patients with rheumatoid arthritis) and 50 healthy controls were analyzed for the concentration of CXCL13 using ELISA. The results indicated that the serum levels of CXCL13 were significantly higher in SLE patients than in non-SLE patients and healthy controls (p < 0.001). Moreover, the level of CXCL13 decreased as the level of anti-dsDNA IgG decreased after treatment between the anti-dsDNA-positive SLE patients and the anti-dsDNA-negative SLE patients. In addition, serum CXCL13 levels were correlated with SLEDAI in different activities of SLE, renal involvement and active LN. Furthermore, the level of CXCL13 was positively related to the SLEDAI, level of anti-dsDNA IgG, level of ESR and RAI of high-avidity IgG ANAs (HA IgG ANAs). Additionally, statically analysis revealed that CXCL13 would be a best diagnostic value for determining the disease activity of SLE due to its moderate sensitivity (93.5%), specificity (95%), PPV (98.6%), NPV (79.2%) and OR(95%CI,250(30.303-1000)), at a cut-off level of 15.27 pg/mL. First, we indicated that CXCL13 was elevated in SLE patients regardless of the presence or absence of anti-dsDNA IgG ANAs. Furthermore, HA IgG ANAs might affect the circulation of CXCL13. Therefore, the chemokine CXCL13 might be a risk factor influencing the inflammatory process in SLE.
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Affiliation(s)
- Yanli Zeng
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Yan Zhang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Yiqiang Lin
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Xuelian Wang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, Xiamen, 361004, China
| | - Qinggui Chen
- Department of General Surgery, Zhongshan Hospital of Xiamen University, Xiamen, 361004, China
| | - Qinghe Huang
- Department of Intensive Care Unit, Zhongshan Hospital of Xiamen University, Xiamen, 361004, China
| | - JiaJia Wang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Longcan Jiang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China
| | - Yun Xiao
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, 361004, China.
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15
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Bremme K, Honkanen S, Gunnarsson I, Chaireti R. The presence of lupus nephritis additionally increases the risk of preeclampsia among pregnant women with systemic lupus erythematosus. Lupus 2021; 30:1031-1038. [PMID: 33840282 PMCID: PMC8120629 DOI: 10.1177/09612033211004716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Introduction Pregnant women with systematic lupus erythematosus (SLE) have an increased risk of obstetric complications, such as preeclampsia and premature births. Previous studies have suggested that renal involvement could further increase the risk for adverse obstetric outcomes. Aims: The aim of this study was to compare the obstetric outcomes in a Swedish cohort of patients with SLE with and without lupus nephritis (LN). Patients and methods The study was conducted as a retrospective observational study on 103 women with SLE, who gave birth at the Karolinska University Hospital between the years 2000-2017. Thirty-five women had previous or active LN and 68 women had non-renal lupus. Data was collected from digital medical records. The outcomes that were analysed included infants born small for gestational age (SGA), premature birth, preeclampsia, SLE- or nephritis flare and caesarean section. Results Women with LN, both with previous and with renal flare during pregnancy suffered from pre-eclampsia more often compared to women with non-renal lupus (25.7% vs 2.9%, p = 0.001) and this complication was associated with premature birth (p = 0.021) and caesarean section (p = 0.035). Conclusions Lupus nephritis is a significant risk factor for adverse obstetric outcomes in women with SLE, including preeclampsia. Those patients could benefit from more frequent antenatal controls and more vigorous follow-up.
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Affiliation(s)
- Katarina Bremme
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.,Division of Obstetrics and Gynaecology, Karolinska University Hospital, Stockholm, Sweden
| | - Sonja Honkanen
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Iva Gunnarsson
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.,Division of Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Roza Chaireti
- Department of Molecular Medicine and Surgery, Karolinska Institute, Solna, Sweden.,Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
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16
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Zeng Y, Zhang Y, Chen Q, Huang Q, Lin Y, Wang X, Wang JJ, Jiang L, Xiao Y. Distribution of IgG subclass anti-nuclear antibodies (ANAs) in systemic lupus erythematosus. Lupus 2021; 30:901-912. [PMID: 33622075 DOI: 10.1177/0961203321995242] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Our study purpose was to detect the distribution of anti-nuclear antibody (ANA) IgG subclasses in patients with systemic lupus erythematosus (SLE) and to evaluate their influence on the inflammatory process in SLE. METHODS We determined the serum levels of ANA IgG subclasses from 70 SLE patients, 25 patients with other autoimmune diseases (OAD), and 25 healthy controls using ELISA. The serum level of total ANA IgG and the avidity of ANA IgG, dsDNA IgG, and dsDNA IgG subclasses were analysed by ELISA. RESULTS The results indicated that levels of four ANA IgG subclasses (IgG1, IgG2, IgG3 and IgG4) and total IgG were significantly higher in SLE patients than in OAD patients and healthy controls (p < 0.001). Moreover, the level of each ANA IgG subclass and the prevalence of high-avidity IgG ANAs (HA IgG ANAs) were significantly higher in the active cases than in the inactive cases of SLE and LN. Furthermore, level of ANA IgG subclasses decreased as level of dsDNA IgG subclasses decreased in 30 patients with SLE. In comparison, ANA IgG3 was significantly effective in high-dose prednisone combined with hydroxychloroquine (p = 0.025). Additionally, it revealed that level of dsDNA IgG had a significant influence on four ANA IgG subclasses, especially on ANA IgG3 (β coefficient = 0.649, p < 0.001). Level of ANA IgG3 was also positively related to the serum level of dsDNA IgG (r = 0.729, p < 0.001) and RAI of HA IgG ANAs (r = 0.504, p < 0.001). However, the level of ANA IgG4 was positively related to the serum level of albumin (r = 0.572, p < 0.001) and RAI of HA IgG ANAs (r = 0.549, p < 0.001). Moreover, the results revealed that cutaneous and renal involvement were mainly associated with the ANA IgG1 and IgG4 subclasses. Although, arthritic involvement was mainly associated with ANA IgG3. CONCLUSIONS First, we demonstrated that the ANA IgG subclasses were diagnostic tools in SLE patients. Furthermore, HA IgG ANAs might affect the distribution of ANA IgG3 and IgG4. Moreover, ANA IgG3 might play a particular role in the activity of SLE disease and therapy. Therefore, an altered ANA IgG subclass distribution might be a risk factor influencing the inflammatory process in SLE.
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Affiliation(s)
- Yanli Zeng
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Yan Zhang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Qinggui Chen
- Department of General Surgery, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - Qinghe Huang
- Department of Intensive Care Unit, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - Yiqiang Lin
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Xuelian Wang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - Jia Jia Wang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Longcan Jiang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Yun Xiao
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
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Parodis I, Adamichou C, Aydin S, Gomez A, Demoulin N, Weinmann-Menke J, Houssiau FA, Tamirou F. Per-protocol repeat kidney biopsy portends relapse and long-term outcome in incident cases of proliferative lupus nephritis. Rheumatology (Oxford) 2021; 59:3424-3434. [PMID: 32353879 DOI: 10.1093/rheumatology/keaa129] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/24/2020] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES In patients with LN, clinical and histological responses to treatment have been shown to be discordant. We investigated whether per-protocol repeat kidney biopsies are predictive of LN relapses and long-term renal function impairment. METHODS Forty-two patients with incident biopsy-proven active proliferative (class III/IV±V) LN from the database of the UCLouvain were included in this retrospective study. Per-protocol repeat biopsies were performed after a median [interquartile range (IQR)] time of 24.3 (21.3-26.2) months. The National Institutes of Health activity index (AI) and chronicity index (CI) scores were assessed in all biopsies. RESULTS Despite a moderate correlation between urinary protein/creatinine ratios (UPCR) and AI scores at repeat biopsy (r = 0.48; P = 0.001), 10 patients (23.8%) with UPCR < 1.0 g/g still had a high degree of histological activity (AI > 3). High AI scores (continuous) in repeat biopsies were associated with an increased probability and/or shorter time to renal relapse (n = 11) following the repeat biopsy [hazard ratio (HR) = 1.2, 95% CI: 1.1, 1.3; P = 0.007], independently of proteinuria levels. High CI scores (continuous) in repeat biopsies were associated with a sustained increase in serum creatinine levels corresponding to ≥120% of the baseline value (HR = 1.8, 95% CI: 1.1, 2.9; P = 0.016) through a median (IQR) follow-up time of 131.5 (73.8-178.2) months, being also the case for acute tubulointerstitial inflammation and interstitial fibrosis/tubular atrophy in repeat but not baseline biopsies. CONCLUSION Our results highlight the usefulness of per-protocol repeat biopsies, herein performed after a median time of 24 months from baseline, as an integral part of the treatment evaluation, also in patients showing adequate clinical response.
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Affiliation(s)
- Ioannis Parodis
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Christina Adamichou
- Rheumatology Department, Cliniques Universitaires Saint-Luc and Pôle de Pathologies Rhumatismales Inflammatoires et Systémiques, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain
| | - Selda Aydin
- Pathology Department, Cliniques Universitaires Saint-Luc
| | - Alvaro Gomez
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Nathalie Demoulin
- Division of Nephrology, Cliniques Universitaires Saint-Luc and Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Julia Weinmann-Menke
- Department of Nephrology, Rheumatology and Clinical Immunology, University Medical Centre of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Frédéric A Houssiau
- Rheumatology Department, Cliniques Universitaires Saint-Luc and Pôle de Pathologies Rhumatismales Inflammatoires et Systémiques, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain
| | - Farah Tamirou
- Rheumatology Department, Cliniques Universitaires Saint-Luc and Pôle de Pathologies Rhumatismales Inflammatoires et Systémiques, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain
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18
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Gasparotto M, Gatto M, Binda V, Doria A, Moroni G. Lupus nephritis: clinical presentations and outcomes in the 21st century. Rheumatology (Oxford) 2020; 59:v39-v51. [PMID: 33280015 PMCID: PMC7751166 DOI: 10.1093/rheumatology/keaa381] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 05/28/2020] [Indexed: 01/17/2023] Open
Abstract
Lupus nephritis (LN) is a frequent and severe manifestation of SLE. Along the decades, the epidemiology of LN and its clinical presentation have been changing. However, even though retrospective cohort studies report a decreased mortality rate and an improvement in the disease prognosis, the percentage of patients progressing into end stage renal disease (ESRD) keeps steady despite the improvements in therapeutic strategies. Current in-use medications have been available for decades now, yet over the years, regimens for optimizing their efficacy and minimizing toxicity have been developed. Therapeutic research is now moving towards the direction of precision medicine and several new drugs, targeting selectively different pathogenetic pathways, are currently under evaluation with promising results. In this review, we address the main changes and persistent unmet needs in LN management throughout the past decades, with a focus on prognosis and upcoming treatments.
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Affiliation(s)
| | - Mariele Gatto
- Rheumatology Unit, Department of Medicine, University of Padua
| | - Valentina Binda
- Nephrology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Andrea Doria
- Rheumatology Unit, Department of Medicine, University of Padua
| | - Gabriella Moroni
- Nephrology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
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19
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Martin M, Trattner R, Nilsson SC, Björk A, Zickert A, Blom AM, Gunnarsson I. Plasma C4d Correlates With C4d Deposition in Kidneys and With Treatment Response in Lupus Nephritis Patients. Front Immunol 2020; 11:582737. [PMID: 33133102 DOI: 10.3389/fimmu.2020.582737] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/03/2020] [Indexed: 01/09/2023] Open
Abstract
Objective To examine whether C4d plasma levels correlate with treatment response and C4d kidney deposition in systemic lupus erythematosus (SLE) with lupus nephritis (LN). Methods C4d plasma levels were analyzed by a unique assay specifically detecting C4d arising from complement activation and C4 plasma levels were quantified with competitive ELISA. SLE patients with LN (71) and active SLE patients without LN (22) plus 145 controls were included. For 52 LN patients samples were available both at baseline and after immunosuppressive treatment. C4d kidney deposition was detected using immunohistochemistry in two matching kidney biopsies of 12 LN patients. Results In comparison to population-based controls, plasma C4d levels were significantly increased in SLE patients (0.33 mg/L versus 0.94 mg/ml, p < 0.0001) with significantly higher levels in LN patients (1.02 mg/L) than in non-renal SLE patients (0.57 mg/L, p = 0.004). The C4d/C4 ratio was also significantly higher in LN (11.2) than in non-renal SLE patients (2.5, p = 0.0002). According to ROC curve analysis, C4d was found to be an accurate marker to discriminate LN from non-renal SLE patients (p = 0.004). The C4d/C4 ratio displayed even higher specificity, sensitivity and overall accuracy as marker for LN than C4d and C4 alone. At baseline, C4d levels correlated significantly with urine-albumin to creatinine ratio (r s = 0.43, p = 0.011) and with renal activity index (r s = 0.37, p = 0.002). Immunohistochemical staining showed glomerular deposits of C4d in kidney biopsies, which strikingly correlated with plasma C4d levels (r s = 0.7, p = 0.0002). Plasma C4d declined significantly after treatment in patients that experienced favorable clinical and histopathological response (p < 0.0001), while levels remained mainly unchanged in non-responders. Conclusion Plasma C4d discriminates LN from active non-renal SLE, correlates with C4d kidney deposits and appears valuable in monitoring responsiveness to various treatments. The C4d/C4 ratio might be superior to C4d alone.
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Affiliation(s)
- Myriam Martin
- Department of Translational Medicine, Section of Medical Protein Chemistry, Lund University, Malmö, Sweden.,Region Skåne, Laboratory Medicine, Clinical Chemistry, Malmö, Sweden
| | - Rebecca Trattner
- Department of Translational Medicine, Section of Medical Protein Chemistry, Lund University, Malmö, Sweden.,Region Skåne, Laboratory Medicine, Clinical Chemistry, Malmö, Sweden
| | - Sara C Nilsson
- Department of Translational Medicine, Section of Medical Protein Chemistry, Lund University, Malmö, Sweden
| | - Albin Björk
- Department of Medicine, Division of Rheumatology, Karolinska Institutet, Stockholm, Sweden
| | - Agneta Zickert
- Department of Medicine, Division of Rheumatology, Karolinska Institutet, Stockholm, Sweden.,Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Anna M Blom
- Department of Translational Medicine, Section of Medical Protein Chemistry, Lund University, Malmö, Sweden.,Region Skåne, Laboratory Medicine, Clinical Chemistry, Malmö, Sweden
| | - Iva Gunnarsson
- Department of Medicine, Division of Rheumatology, Karolinska Institutet, Stockholm, Sweden.,Rheumatology, Karolinska University Hospital, Stockholm, Sweden
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20
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Bertolo M, Baumgart S, Durek P, Peddinghaus A, Mei H, Rose T, Enghard P, Grützkau A. Deep Phenotyping of Urinary Leukocytes by Mass Cytometry Reveals a Leukocyte Signature for Early and Non-Invasive Prediction of Response to Treatment in Active Lupus Nephritis. Front Immunol 2020; 11:256. [PMID: 32265898 PMCID: PMC7105605 DOI: 10.3389/fimmu.2020.00256] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/30/2020] [Indexed: 11/18/2022] Open
Abstract
Non-invasive biomarkers are necessary for diagnosis and monitoring disease activity in lupus nephritis (LN) to circumvent risks and limitations of renal biopsies. To identify new non-invasive cellular biomarkers in the urine sediment of LN patients, which may reflect kidney inflammation and can be used to predict treatment outcome, we performed in-depth urinary immune cell profiling by mass cytometry. We established a mass cytometric workflow to comparatively analyze the cellular composition of urine and peripheral blood (PB) in 13 patients with systemic lupus erythematosus (SLE) with active, biopsy-proven proliferative LN. Clinical and laboratory data were collected at the time of sampling and 6 months after induction of therapy in order to evaluate the clinical response of each patient. Six patients with different acute inflammatory renal diseases were included as comparison group. Leukocyte phenotypes and composition differed significantly between urine and paired PB samples. In urine, neutrophils and monocytes/macrophages were identified as the most prominent cell populations comprising together about 30%–83% of nucleated cells, while T and B lymphocytes, eosinophils, and natural killer (NK) cells were detectable at frequencies of <10% each. The majority of urinary T cells showed phenotypical characteristics of activated effector memory T cells (EM) as indicated by the co-expression of CD38 and CD69 – a phenotype that was not detectable in PB. Kidney inflammation was also reflected by tissue-imprinted macrophages, which phenotypically differed from PB monocytes by an increased expression of HLA-DR and CD11c. The presence of activated urinary T cells and macrophages could be used for differential diagnosis of proliferative LN forms and other renal pathologies. Most interestingly, the amount of EM in the urine sediment could be used as a biomarker to stratify LN patients in terms of response to induction therapy. Deep immunophenotypic profiling of urinary cells in LN allowed us to identify a signature of activated T cells and macrophages, which appear to reflect leukocytic infiltrates in the kidney. This explorative study has not only confirmed but also extended the knowledge about urinary cells as a future non-invasive biomarker platform for diagnosis and precision medicine in inflammatory renal diseases.
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Affiliation(s)
- Martina Bertolo
- Department of Nephrology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Sabine Baumgart
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz-Institute, Berlin, Germany
| | - Pawel Durek
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz-Institute, Berlin, Germany
| | - Anette Peddinghaus
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz-Institute, Berlin, Germany
| | - Henrik Mei
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz-Institute, Berlin, Germany
| | - Thomas Rose
- Department of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Philipp Enghard
- Department of Nephrology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Andreas Grützkau
- Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), a Leibniz-Institute, Berlin, Germany
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21
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Abstract
Lupus nephritis (LN) is a form of glomerulonephritis that constitutes one of the most severe organ manifestations of the autoimmune disease systemic lupus erythematosus (SLE). Most patients with SLE who develop LN do so within 5 years of an SLE diagnosis and, in many cases, LN is the presenting manifestation resulting in the diagnosis of SLE. Understanding of the genetic and pathogenetic basis of LN has improved substantially over the past few decades. Treatment of LN usually involves immunosuppressive therapy, typically with mycophenolate mofetil or cyclophosphamide and with glucocorticoids, although these treatments are not uniformly effective. Despite increased knowledge of disease pathogenesis and improved treatment options, LN remains a substantial cause of morbidity and death among patients with SLE. Within 10 years of an initial SLE diagnosis, 5-20% of patients with LN develop end-stage kidney disease, and the multiple comorbidities associated with immunosuppressive treatment, including infections, osteoporosis and cardiovascular and reproductive effects, remain a concern. Clearly, early and accurate diagnosis of LN and prompt initiation of therapy are of vital importance to improve outcomes in patients with SLE.
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22
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Wenderfer SE, Chang J, Hicks MJ. Approach to Classification and Management of Childhood-Onset Lupus Nephritis. CURRENT PEDIATRICS REPORTS 2020. [DOI: 10.1007/s40124-020-00207-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Shi M, Luo W, Feng X, Jin L, Yang M, Wu L, Yang Z, Su C, Li Y, Su H, Wang G, Cao W. Urinary Angiotensinogen Predicts Renal Disease Activity in Lupus Nephritis. Antioxid Redox Signal 2019; 31:1289-1301. [PMID: 31264479 DOI: 10.1089/ars.2019.7782] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Aims: A noninvasive indicator of renal histological lesions and disease activity in lupus nephritis (LN) is needed for timely and targeted treatment before overt renal injury. Here, we tested the utility of urinary angiotensinogen (UAGT) to predict renal disease activity in LN. Results: A prospective, three-stage study was performed in patients with LN. In stage I, UAGT was measured in 140 newly diagnosed LN patients. UAGT significantly increased in LN patients, correlating well with kidney angiotensinogen expression and histological activity. Patients with LN class IV exhibited the highest UAGT compared with other histopathological classes of LN. For identifying LN class IV, a particularly aggressive type of LN, UAGT outperformed the conventional clinical measures and improved their performance. In stage II, UAGT was monitored in 61 subjects from stage I for up to 12 months. UAGT decreased after induction therapy and remained low in patients with LN remission during follow-up. For predicting therapy success at month 12, the area under the receiver operating characteristics curve of UAGT reduction at month 4 was 0.83, outperforming that of 24-h proteinuria. In stage III, UAGT was monitored in 12 LN patients before, during, and after the onset of renal flares. An elevation in UAGT predicted recurrence of LN, and a decline in UAGT after a renal flare heralded the remission of disease before conventional clinical measures. Innovation and Conclusion: UAGT in LN is a promising indicator for dynamic surveillance of renal disease activity and prediction of renal flares. Antioxid. Redox Signal. 31, 1289-1301.
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Affiliation(s)
- Meng Shi
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Weihong Luo
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Xiaodan Feng
- Division of Nephrology, Guangzhou Development District Hospital, Guangzhou, People's Republic of China
| | - Lingwei Jin
- Division of Nephrology, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Manqiu Yang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Liling Wu
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Zhichen Yang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Cailing Su
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Yajing Li
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Huanjuan Su
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Guobao Wang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
| | - Wei Cao
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Guangzhou, People's Republic of China
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24
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Mun CH, Kim JO, Ahn SS, Yoon T, Kim SJ, Ko E, Noh HD, Park YB, Jung HJ, Kim TS, Lee SW, Park SG. Atializumab, a humanized anti-aminoacyl-tRNA synthetase-interacting multifunctional protein-1 (AIMP1) antibody significantly improves nephritis in (NZB/NZW) F1 mice. Biomaterials 2019; 220:119408. [DOI: 10.1016/j.biomaterials.2019.119408] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 07/05/2019] [Accepted: 08/01/2019] [Indexed: 12/21/2022]
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25
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Yo JH, Barbour TD, Nicholls K. Management of refractory lupus nephritis: challenges and solutions. Open Access Rheumatol 2019; 11:179-188. [PMID: 31372070 PMCID: PMC6636187 DOI: 10.2147/oarrr.s166303] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/13/2019] [Indexed: 12/15/2022] Open
Abstract
Refractory lupus nephritis, broadly defined as failure to attain clinical remission after appropriate induction immunosuppressive therapy, is associated with an increased risk of progression to end-stage kidney disease and mortality. This is a challenging issue in clinical practice, as modern induction therapy despite proven efficacy can still be associated with treatment failure. Moreover, newer therapies have failed in recent years to displace or even match existing protocols for effective induction of remission. Refractory disease is generally assessed on the basis of clinical parameters, which may be unreliable, and renal biopsy, which is often not performed in a standard or timely fashion. Persisting histological inflammation in 30%–50% of patients who have attained clinical remission highlights the disparity between clinical and immunological response to therapy. The lack of an international consensus regarding what constitutes refractory lupus nephritis compounds clinician indecision regarding optimal management for these patients. Moreover, non-adherence to prescribed therapy versus primary treatment failure can be challenging to discriminate, and the time point at which non-response becomes treatment failure is unclear. In this review, we assess the key published evidence for the treatment of refractory lupus nephritis and provide practical recommendations based around the use of adjunctive therapies. These agents include rituximab and calcineurin inhibitors, with evidence consisting largely of observational or uncontrolled studies, as well as some of the biologic therapies currently under investigation through prospective clinical trials. The poor prognosis of refractory lupus nephritis demands regular review of patient response and the flexibility to switch or augment therapy.
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Affiliation(s)
- J H Yo
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - T D Barbour
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - K Nicholls
- Department of Nephrology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
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26
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Ali AY, Abdelaziz TS, Behiry ME. The Prevalence and Causes of Non-adherence to Immunosuppressive Medications in Patients with Lupus Nephritis Flares. Curr Rheumatol Rev 2019; 16:245-248. [PMID: 31241434 DOI: 10.2174/1573397115666190626111847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/09/2019] [Accepted: 06/11/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Lupus nephritis is one of the major manifestations of SLE. Poor adherence to medications is an important cause of not achieving treatment targets. METHODS We assessed patients' adherence to immune-suppressive medications in patients with Lupus nephritis using the Morisky, Green, and Levine (MGL) Adherence Scale. The aim was to study the effect of non-adherence on the occurrence of renal flares. RESULTS We recruited 104 patients with lupus nephritis. Sixty-six patients had flares of LN. There was a high prevalence of non-adherence to medications (n=68). Patients who were non-adherent to treatment had more renal flares (p= 0.02). Duration of lupus since diagnosis was significantly higher in patients who had renal flares. Using regression analysis, non-adherence to medications was associated with 3.7 higher risk of developing a single renal flare and 4.9 higher risk of developing more than one renal flare. Causes of non-adherence were medications side effects in 43% of patients, financial issues in 31% or forgetfulness in 26%. CONCLUSION Non-adherence to immunosuppressive medications has a high prevalence in patients with lupus nephritis and is correlated with the number of renal flares.
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Affiliation(s)
- Ahmed Yamany Ali
- Department of Internal Medicine, Kasr Alainy Medical School, Cairo University Hospitals, Cairo, Egypt
| | - Tarek Samy Abdelaziz
- Department of Internal Medicine, Kasr Alainy Medical School, Cairo University Hospitals, Cairo, Egypt
| | - Mervat Essam Behiry
- Department of Internal Medicine, Kasr Alainy Medical School, Cairo University Hospitals, Cairo, Egypt
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27
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Zhang CX, Cai L, Zhou ZY, Mao YY, Huang H, Yin L, Chen TX, Zhou W. Clinical manifestations, immunological features and prognosis of Chinese pediatric systemic lupus erythematosus: A single-center study. Int J Rheum Dis 2019; 22:1070-1076. [PMID: 30957986 DOI: 10.1111/1756-185x.13547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 02/15/2019] [Accepted: 02/17/2019] [Indexed: 11/30/2022]
Abstract
AIM Since there are only a few reports on pediatric systemic lupus erythematosus (pSLE) in Chinese populations, therefore we retrospectively report the clinical and immunological features as well as renal outcome in Chinese pSLE. METHODS Patients diagnosed with pSLE at Shanghai Children's Medical Center between 2001 and 2016 were evaluated and clinical data were retrospectively collected. RESULTS A total of 102 pSLE patients were analyzed. Renal disorder including proteinuria (81.37%) and hematuria (65.69%) were most commonly identified. Class IV was the most common finding on renal biopsy. In lupus nephritis (LN), 67.21%, 78.0%, 86.0% and 94.55% achieved complete remission within 6, 12, 18 and 24 months, respectively. Furthermore, 16.67% of LN patients suffered at least one renal flare. Antinuclear antibodies were detected in nearly all patients (97.62%), followed by anti-double-stranded DNA (anti-dsDNA) antibodies (70.0%) and anti-Sjögren's syndrome A (anti-SSA) antibodies (60.64%). Oral corticosteroid (93.14%) and mycophenolate mofetil (64.71%) was used in the majority of patients. Infection (32.35%) was the main side effect caused by the medications. CONCLUSIONS Our population-based pSLE cohort indicated that compared to other international cohorts, there was a higher prevalence of LN in Chinese pSLE. Proteinuria was the most frequent manifestation both at disease onset and during the entire clinical course. Class IV LN was the dominant renal pathological type. Nevertheless, there was a favorable renal remission rate and relatively low incidence of renal flare in our cohort. Apart from antinuclear antibodies and anti-dsDNA antibodies, anti-SSA antibodies were most frequently detected. Infection was the leading complication caused by the medications.
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Affiliation(s)
- Chen-Xing Zhang
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Division of Immunology, Institute of Pediatric Translational Medicine, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Li Cai
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Division of Immunology, Institute of Pediatric Translational Medicine, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zheng-Yu Zhou
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - You-Ying Mao
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hua Huang
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lei Yin
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Tong-Xin Chen
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Division of Immunology, Institute of Pediatric Translational Medicine, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Allergy and Immunology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wei Zhou
- Department of Nephrology and Rheumatology, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
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ANCA positivity at the time of renal biopsy is associated with chronicity index of lupus nephritis. Rheumatol Int 2019; 39:879-884. [PMID: 30806732 DOI: 10.1007/s00296-019-04263-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 02/21/2019] [Indexed: 10/27/2022]
Abstract
We investigated the association of antineutrophil cytoplasmic antibody (ANCA) positivity with lupus nephritis (LN) activity, histological features and prognosis in Korean patients with biopsy-proven LN having the results of both myeloperoxidase (MPO-ANCA) and proteinase 3 (PR3)-ANCA. We retrospectively reviewed the medical records of 91 LN patients having the results of ANCA. We divided patients with LN into the two groups according to the ANCA positivity. We collected clinical and laboratory data at kidney biopsy and histological features such as LN class including class I, II, III, IV-S, IV-G and V, and activity and chronicity index. We evaluated prognosis of LN during the follow-up by death and kidney failure. Twelve of 91 patients (13.2%) had ANCA at kidney biopsy. There were no differences in demographic data, comorbidities, reasons for kidney biopsy and laboratory data at kidney biopsy between patients with and without ANCA. In 12 LN patients with ANCA, Class III was the most frequently observed LN class (41.7%), while in 79 LN patients without ANCA, class IV-G was the most often detected LN class (35.4%). There were no meaningful differences in classes of LN between the two groups. On the other hand, patients with ANCA exhibited the higher median chronicity index than those without (2.5 vs. 1.0, P = 0.028), unlike activity index. ANCA positivity exhibited no association with death or kidney failure during the follow-up. ANCA positivity at kidney biopsy is associated with chronicity index of LN.
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Affiliation(s)
- Hans-Joachim Anders
- Renal Division, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU Munich, Germany
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Mao Y, Yin L, Huang H, Zhou Z, Chen T, Zhou W. Addition of cyclosporine/tacrolimus for pediatric relapsed lupus nephritis during mycophenolate mofetil maintenance therapy. J Int Med Res 2018; 47:105-113. [PMID: 30208769 PMCID: PMC6384452 DOI: 10.1177/0300060518796751] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Objective We aimed to evaluate the efficacy of low-dose cyclosporine (CsA) or tacrolimus (Tac) in children with proliferative lupus nephritis (PLN) during maintenance therapy. Methods A low dose of CsA or Tac was added to 11 children who relapsed during mycophenolate mofetil (MMF) maintenance therapy. Renal remission was analyzed at 3 and 6 months, and at 1, 2, and 3 years after CsA/Tac addition. Adverse effects were recorded. Results The clinical response rates were 81.9%, 100%, 90.0%, 100%, and 100% at 3 months, 6 months, 1 year, 2 years, and 3 years after CsA/Tac addition, respectively. Complete renal remission rates were 45.5%, 45.5%, 40.0%, 44.4%, and 71.4% at 3 months, 6 months, 1 year, 2 years, and 3 years after CsA/Tac addition, respectively. None of the patients had severe adverse events. Conclusion Low-dose CsA/Tac combined with MMF shows a promising effect in renal remission with acceptable safety in children with PLN. Therefore, this combination would be a good choice for children with lupus nephritis who relapse or have suboptimal MMF maintenance therapy.
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Affiliation(s)
- Youying Mao
- Nephrology and Rheumatology Department, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Yin
- Nephrology and Rheumatology Department, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hua Huang
- Nephrology and Rheumatology Department, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhengyu Zhou
- Nephrology and Rheumatology Department, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Tongxin Chen
- Nephrology and Rheumatology Department, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Zhou
- Nephrology and Rheumatology Department, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Go DJ, Lee JY, Kang MJ, Lee EY, Lee EB, Yi EC, Song YW. Urinary vitamin D-binding protein, a novel biomarker for lupus nephritis, predicts the development of proteinuric flare. Lupus 2018; 27:1600-1615. [PMID: 29958502 DOI: 10.1177/0961203318778774] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lupus nephritis (LN) is a major complication of systemic lupus erythematosus (SLE). Conventional biomarkers for assessing renal disease activity are imperfect in predicting clinical outcomes associated with LN. The aim of this study is to identify urinary protein biomarkers that reliably reflect the disease activity or predict clinical outcomes. A quantitative proteomic analysis was performed to identify protein biomarker candidates that can differentiate between SLE patients with and without LN. Selected biomarker candidates were further verified by enzyme-linked immunosorbent assay using urine samples from a larger cohort of SLE patients ( n = 121) to investigate their predictive values for LN activity measure. Furthermore, the association between urinary levels of a selected panel of potential biomarkers and prognosis of LN was assessed with a four-year follow-up study of renal outcomes. Urinary vitamin D-binding protein (VDBP), transthyretin (TTR), retinol binding protein 4 (RBP4), and prostaglandin D synthase (PTGDS) were significantly elevated in SLE patients with LN, especially in patients with active LN ( n = 21). Among them, VDBP well correlated with severity of proteinuria (rho = 0.661, p < 0.001) and renal SLE Disease Activity Index (renal SLEDAI) (rho = 0.520, p < 0.001). In the four-year follow-up, VDBP was a significant risk factor (hazard ratio 9.627, 95% confidence interval 1.698 to 54.571, p = 0.011) for the development of proteinuric flare in SLE patients without proteinuria ( n = 100) after adjustments for multiple confounders. Urinary VDBP correlated with proteinuria and renal SLEDAI, and predicted the development of proteinuria.
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Affiliation(s)
- D J Go
- 1 Division of Rheumatology, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea.,2 Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine, Medical Research Institute, Seoul National University, Seoul, Korea
| | - J Y Lee
- 2 Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine, Medical Research Institute, Seoul National University, Seoul, Korea
| | - M J Kang
- 2 Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine, Medical Research Institute, Seoul National University, Seoul, Korea
| | - E Y Lee
- 3 Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - E B Lee
- 3 Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - E C Yi
- 2 Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine, Medical Research Institute, Seoul National University, Seoul, Korea
| | - Y W Song
- 2 Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine, Medical Research Institute, Seoul National University, Seoul, Korea.,3 Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
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Moon JS, Mun CH, Kim JH, Cho JY, Park SD, Park TY, Shin JS, Ho CC, Park YB, Ghosh S, Bothwell ALM, Lee SW, Lee SK. Intranuclear delivery of the transcription modulation domain of Tbet-improved lupus nephritis in (NZB/NZW) F1 lupus-prone mice. Kidney Int 2018; 93:1118-1130. [PMID: 29409726 DOI: 10.1016/j.kint.2017.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 10/24/2017] [Accepted: 11/09/2017] [Indexed: 12/12/2022]
Abstract
Excessive expression of Tbet and IFNγ is evidence of systemic lupus erythematosus (SLE) in lupus patients. In this study, the nucleus-transducible form of Transcription Modulation Domain (TMD) of Tbet (ntTbet-TMD), which is a fusion protein between Protein Transduction Domain Hph-1 (Hph-1-PTD) and the TMD of Tbet comprising DNA binding domain and isotype-specific domain, was generated to inhibit Tbet-mediated transcription in the interactomic manner. ntTbet-TMD was effectively delivered into the nucleus of the cells and specifically inhibited Tbet-mediated transcription without influencing the differentiation of other T cell subsets and signaling events for T cell activation. The severity of nephritis was significantly reduced by ntTbet-TMD as effectively as methylprednisolone in lupus-prone mice. The number of Th1, Th2 or Th17 cells and the secretion of their cytokines substantially decreased in the spleen and kidney of lupus-prone mice by ntTbet-TMD treatment. In contrast to methylprednisolone, the marked increase of Treg cells and the secretion of their immunosuppressive cytokine were detected in the spleen of (NZB/NZW) F1 mice treated with ntTbet-TMD. Thus, ntTbet-TMD can improve nephritis in lupus-prone mice by modulating the overall proinflammatory microenvironment and rebalancing T cell subsets, leading to new immune therapeutics for Th1-mediated autoimmune diseases.
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Affiliation(s)
- Jae-Seung Moon
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - Chin Hee Mun
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung-Ho Kim
- Good T cells, Inc., Seoul, Republic of Korea
| | - Jen-Young Cho
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sung-Dong Park
- MOGAM Institute for Biomedical Research, Gyeonggi-do, Republic of Korea
| | - Tae-Yoon Park
- Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jin-Su Shin
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - Chun-Chang Ho
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - Yong-Beom Park
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sankar Ghosh
- Department of Microbiology and Immunology, Columbia University, College of Physicians and Surgeons, New York, New York, USA
| | - Alfred L M Bothwell
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sang-Won Lee
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Sang-Kyou Lee
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea; Good T cells, Inc., Seoul, Republic of Korea.
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Shenoy S, Chaurasia S, Edavalath S, Zanwar A, Agrawal V, Aggarwal A, Misra R. Effect of induction therapy on circulating T-helper 17 and T-regulatory cells in active proliferative lupus nephritis. Int J Rheum Dis 2018; 21:1040-1048. [PMID: 29392921 DOI: 10.1111/1756-185x.13272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
INTRODUCTION T-helper 17 (Th17) cells and T-regulatory (Treg) cells have been suggested to play pathogenic roles in lupus nephritis. The in vivo effects of current therapies for lupus nephritis (LN) on these cells have not been adequately studied. METHODS We conducted a prospective observational study among patients with active proliferative lupus nephritis (LN) who received Eurolupus induction therapy and assessed them as per the European League Against Rheumatism criteria for renal response. Peripheral circulatory Th17 and Treg cell numbers were enumerated at start of therapy, at 3 and 6 months follow-up periods using flow cytometry. Baseline values were compared with inactive lupus patients (iSLE) and healthy controls (HC). RESULTS Thirty patients with LN, 20 iSLE and 22 HC were enrolled into the study. In LN, Th17 frequency was significantly higher compared to HC, and Treg frequency significantly lower compared to both iSLE and HC. Nineteen patients fulfilled criteria for response (partial or complete) at 6 months. Responder group showed a significant decline in Th17 frequency and an increasing trend in Treg frequency compared to baseline after 6 months of therapy. CONCLUSION Circulating Th17 cells were significantly raised in patients with active proliferative LN and showed a significant reduction in responder patients following therapy.
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Affiliation(s)
- Sajjan Shenoy
- Departments of Clinical Immunology, Sanjay Gandhi Institute of Medical Sciences, Lucknow, UP, India
| | - Smriti Chaurasia
- Departments of Clinical Immunology, Sanjay Gandhi Institute of Medical Sciences, Lucknow, UP, India
| | - Sukesh Edavalath
- Departments of Clinical Immunology, Sanjay Gandhi Institute of Medical Sciences, Lucknow, UP, India
| | - Abhishek Zanwar
- Departments of Clinical Immunology, Sanjay Gandhi Institute of Medical Sciences, Lucknow, UP, India
| | - Vinita Agrawal
- Departments of Pathology, Sanjay Gandhi Institute of Medical Sciences, Lucknow, UP, India
| | - Amita Aggarwal
- Departments of Clinical Immunology, Sanjay Gandhi Institute of Medical Sciences, Lucknow, UP, India
| | - Ramnath Misra
- Departments of Clinical Immunology, Sanjay Gandhi Institute of Medical Sciences, Lucknow, UP, India
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Rheumatoid factor false positivity in patients with ANCA-associated vasculitis not having medical conditions producing rheumatoid factor. Clin Rheumatol 2017; 37:2771-2779. [PMID: 29119480 DOI: 10.1007/s10067-017-3902-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 09/24/2017] [Accepted: 10/30/2017] [Indexed: 10/18/2022]
Abstract
We investigated the rate of rheumatoid factor (RF) false positivity at diagnosis and its influence on clinical and prognostic features and rheumatoid arthritis (RA) development during the follow-up in antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) patients without RA or other medical conditions triggering RF false positivity. We reviewed the medical records of 128 AAV patients. We divided patients with AAV and each variant into two groups according to RF positivity and compared variables between the two groups. Odds ratio and cumulative relapse-free survival rate were obtained by multivariate logistic regression analysis and the Kaplan-Meier survival analysis, respectively. The mean age at diagnosis was 53.6 years and 41 patients were male. Of 128 AAV patients, 69 patients (53.9%) were classified as microscopic polyangiitis (MPA), 29 (22.7%) as granulomatosis with polyangiitis (GPA) and 30 (23.4%) as eosinophilic GPA (EGPA). The rate of RF false positivity was 39.1% in AAV patients. On univariate analysis, general, cutaneous and mucous and ocular manifestations and myeloperoxidase (MPO)-ANCA (or perinuclear (P)-ANCA) positivity were associated with RF false positivity in patients with AAV. On multivariate analysis, cutaneous manifestation was the only independent predictor of RF false positivity in EGPA patients. RF false positivity had no influence on cumulative relapse-free survival rate of AAV or RA development during the follow-up. RF false positivity rate was 39.1% in AAV patients and it was associated with cutaneous manifestation in EGPA patients at diagnosis, but not relapses of AAV or RA development during the follow-up.
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35
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Gordon C, Amissah-Arthur MB, Gayed M, Brown S, Bruce IN, D’Cruz D, Empson B, Griffiths B, Jayne D, Khamashta M, Lightstone L, Norton P, Norton Y, Schreiber K, Isenberg D. The British Society for Rheumatology guideline for the management of systemic lupus erythematosus in adults. Rheumatology (Oxford) 2017; 57:e1-e45. [DOI: 10.1093/rheumatology/kex286] [Citation(s) in RCA: 172] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Indexed: 12/15/2022] Open
Affiliation(s)
- Caroline Gordon
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham,
- Rheumatology Department, City Hospital, Sandwell and West Birmingham Hospitals NHS Trust,
- Rheumatology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham,
| | - Maame-Boatemaa Amissah-Arthur
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham,
| | - Mary Gayed
- Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham,
- Rheumatology Department, University Hospitals Birmingham NHS Foundation Trust, Birmingham,
| | - Sue Brown
- Royal National Hospital for Rheumatic Diseases, Bath,
| | - Ian N. Bruce
- Arthritis Research UK Centre for Epidemiology, Centre for Musculoskeletal Research, Institute for Inflammation and Repair, University of Manchester, Manchester Academic Health Sciences Centre,
- The Kellgren Centre for Rheumatology, NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester University Hospitals NHS Foundation Trust, Manchester,
| | - David D’Cruz
- Louise Coote Lupus Unit, Guy’s Hospital, London,
| | - Benjamin Empson
- Laurie Pike Health Centre, Modality Partnership, Birmingham,
| | | | - David Jayne
- Department of Medicine, University of Cambridge,
- Lupus and Vasculitis Unit, Addenbrooke’s Hospital, Cambridge,
| | - Munther Khamashta
- Lupus Research Unit, The Rayne Institute, St Thomas’ Hospital,
- Division of Women’s Health, King’s College London,
| | - Liz Lightstone
- Section of Renal Medicine and Vascular Inflammation, Division of Immunology and Inflammation, Department of Medicine, Imperial College London, London,
| | | | | | | | - David Isenberg
- Centre for Rheumatology, University College London, London, UK
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Pakchotanon R, Gladman DD, Su J, Urowitz MB. Sustained complete renal remission is a predictor of reduced mortality, chronic kidney disease and end-stage renal disease in lupus nephritis. Lupus 2017; 27:468-474. [DOI: 10.1177/0961203317726376] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective The objective of this paper is to identify the relationship between patients with lupus nephritis (LN) who achieve sustained complete renal remission (CR) and renal outcome and survival. Methods From a longitudinal cohort study we identified patients with LN with CR. We compared the outcomes of patients who achieved sustained CR for at least five years (Group A) with those less than five years (Group B). The outcomes were death, SLICC/ACR damage index (SDI), renal flare, end-stage renal disease (ESRD) or estimated glomerular filtration rate (eGFR) < 50 ml/min, and doubling of serum creatinine. Regression analyses were used to identify predictors of the outcomes. Results A total of 345 patients were identified, 132 patients in Group A and 213 patients in Group B. The duration of CR in Group A was 11.76 ± 7.34 years but only 1.24 ± 1.24 years in Group B ( p < 0.001). Death, increasing renal SDI, renal flare, renal transplantation, ESRD or eGFR < 50 ml/min, and doubling of serum creatinine in Group A were significantly lower than Group B. Multivariable analysis revealed that Group A patients were at a lower risk of death (hazard ratio (HR) = 0.20; 95% confidence interval (CI), 0.07–0.61; p = 0.004), increasing renal SDI (HR = 0.41; 95% CI, 0.21–0.76; p = 0.01), developing ESRD or eGFR < 50 ml/min (HR = 0.27; 95% CI, 0.12–0.61; p = 0.001), and doubling of serum creatinine (HR = 0.29; 95% CI, 0.14–0.61; p = 0.001) compared with Group B. Conclusion Sustained CR for at least five years is a predictor of better prognosis in patients with LN.
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Affiliation(s)
- R Pakchotanon
- University of Toronto Lupus Clinic, Toronto Western Hospital, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto, Ontario, Canada
| | - D D Gladman
- University of Toronto Lupus Clinic, Toronto Western Hospital, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto, Ontario, Canada
| | - J Su
- University of Toronto Lupus Clinic, Toronto Western Hospital, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto, Ontario, Canada
| | - M B Urowitz
- University of Toronto Lupus Clinic, Toronto Western Hospital, Centre for Prognosis Studies in the Rheumatic Diseases, Toronto, Ontario, Canada
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37
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Tannor EK, Bates WD, Moosa MR. The clinical relevance of repeat renal biopsies in the management of lupus nephritis: a South African experience. Lupus 2017; 27:525-535. [PMID: 28820361 DOI: 10.1177/0961203317726864] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Purpose Clinically, repeat renal biopsies (RRBs) have been performed in lupus nephritis to identify changes in class, plan treatment and assist in prognostication. We set out to compare the histopathological features and outcomes of disease flare and protocol biopsy patients. Methods A retrospective descriptive study was conducted on repeat biopsies performed between January 1984 and December 2015 in lupus nephritis patients. Disease flares and protocol biopsies were compared. Results Of 614 systemic lupus erythematosus (SLE) renal biopsies, 127 (20.7%) RRBs were identified. Disease flare patients accounted for 96 (75.6%) and protocol biopsies for 31 (24.4%) of RRBs. Seventy (72.9%) disease flare patients retained their original class on repeat biopsy. When categorised as proliferative and non-proliferative histology, 83 (87.4%) of the disease flare biopsy patients remained histologically unchanged. Treatment remained unchanged in 57 (60.0%) patients following RRBs for disease flares. Response to immunosuppression in disease flare patients was poorer. Non-response was associated with increased chronicity index (OR = 1.33; 95% CI 1.01-1.76; p = 0.045). Thirty-three (36.3%) disease flare patients developed end-stage kidney disease (ESKD) in one year as compared to one (3.6%) protocol biopsy patient ( p = 0.003). ESKD in disease flare patients was associated with non-response to treatment (OR = 24.6; 95% CI 2.7-219.3; p = 0.004) on multivariate analysis. One-year mortality was 30.0% in the disease flare patients and 3.5% in protocol biopsy patients ( p = 0.018). Conclusion Repeat biopsies in disease flare patients infrequently led to histological class changes, failed to lead to change of treatment in the majority of patients, and were associated with poorer outcomes.
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Affiliation(s)
- E K Tannor
- 1 Division of Nephrology, Department of Medicine, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa.,2 Renal Unit, Department of Medicine, 259295 Komfo Anokye Teaching Hospital , Kumasi, Ghana
| | - W D Bates
- 3 Division of Anatomical Pathology, Stellenbosch University, Tygerberg Academic Hospital and National Health Laboratory Service (NHLS), Cape Town, South Africa
| | - M R Moosa
- 1 Division of Nephrology, Department of Medicine, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa
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Park ES, Ahn SS, Jung SM, Song JJ, Park YB, Lee SW. Renal outcome after kidney-transplantation in Korean patients with lupus nephritis. Lupus 2017; 27:461-467. [DOI: 10.1177/0961203317725591] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We investigated renal outcome of kidney-transplantation in 19 Korean recipients with biopsy-proven lupus nephritis and compared it with 18 Korean age- and gender-matched recipients without lupus nephritis who were diagnosed with end-stage renal disease caused by renal diseases other than lupus nephritis in a single centre. We reviewed histological findings of kidneys and calculated cumulative dose of immunosuppressive agents. We assessed renal flare of systemic lupus erythematosus, recurrence of lupus nephritis and graft failure as prognosis. The mean age of recipients with lupus nephritis was 43.5 years and all patients were female. Six patients had class III, 10 had class IV and three had class V. There were no meaningful differences in demographic data, renal replacement modality, cumulative doses of immunosuppressants and prognosis between recipients with and without lupus nephritis. Eight patients experienced renal flare of systemic lupus erythematosus, but there were no cases of recurrence of lupus nephritis or graft failure in recipients with lupus nephritis. Kidney-recipients with class IV lupus nephritis exhibited a lower cumulative renal flare of systemic lupus erythematosus free survival rate than those with class III lupus nephritis. In conclusion, renal outcome of kidney-transplantation in patients with lupus nephritis is similar to that in those without lupus nephritis, and class IV was associated with renal flare of systemic lupus erythematosus.
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Affiliation(s)
- E S Park
- Division of Rheumatology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S S Ahn
- Division of Rheumatology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S M Jung
- Division of Rheumatology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J J Song
- Division of Rheumatology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y-B Park
- Division of Rheumatology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S-W Lee
- Division of Rheumatology, Yonsei University College of Medicine, Seoul, Republic of Korea
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Jourde-Chiche N, Whalen E, Gondouin B, Speake C, Gersuk V, Dussol B, Burtey S, Pascual V, Chaussabel D, Chiche L. Modular transcriptional repertoire analyses identify a blood neutrophil signature as a candidate biomarker for lupus nephritis. Rheumatology (Oxford) 2017; 56:477-487. [PMID: 28031441 DOI: 10.1093/rheumatology/kew439] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Indexed: 01/09/2023] Open
Abstract
Objective LN is a severe complication of SLE. Non-invasive biomarkers are needed for identifying patients at risk of a renal flare, for differentiating proliferative from non-proliferative forms and for assessing prognoses for LN. Methods We assessed the link between blood transcriptional signatures and LN using blood samples from patients with biopsy-proven LN, extra-renal SLE flares or quiescent SLE. Healthy controls, and control patients with glomerular diseases or bacterial sepsis were included. Modular repertoire analyses from microarray data were confirmed by PCR. Results A modular neutrophil signature (upregulation of module M5.15) was present in 65% of SLE patients and was strongly associated with LN. M5.15 activity was stronger in LN than in extra-renal flares (88 vs 17%). M5.15 was neither correlated to IFN modules, nor to SLEDAI or anti-dsDNA antibodies, but moderately to CS dose. M5.15 activity was associated with severity of LN, was stronger when proliferative, and decreased in patients responding to treatment. M5.15 activation was not caused by higher CS dose because it correlated only moderately to neutrophil count and was also observed among quiescent patients. Among quiescent patients, those with a past history of LN had higher M5.15 activity (50 vs 8%). M5.15 activation was present in patients with bacterial sepsis or ANCA-associated vasculitis, but not in patients with other glomerular diseases. Overall, M5.15 activation was associated with past, present or future flares of LN. Conclusion Modular neutrophil signature could be a biomarker for stratifying LN risk and for monitoring its response to treatment. Trial registration ClinicalTrials.gov, http://clinicaltrials.gov , NCT00920114.
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Affiliation(s)
- Noémie Jourde-Chiche
- Department of Nephrology, Aix-Marseille University, AP-HM, Hôpital Conception, UMR_S 1076, Vascular Research Center of Marseille, Marseille, France
| | - Elizabeth Whalen
- Systems Immunology Department, Benaroya Research Institute, Seattle
| | - Bertrand Gondouin
- Department of Nephrology, Aix-Marseille University, AP-HM, Hôpital Conception, UMR_S 1076, Vascular Research Center of Marseille, Marseille, France
| | - Cate Speake
- Systems Immunology Department, Benaroya Research Institute, Seattle
| | - Vivian Gersuk
- Systems Immunology Department, Benaroya Research Institute, Seattle
| | - Bertrand Dussol
- Department of Nephrology, Aix-Marseille University, AP-HM, Hôpital Conception, UMR_S 1076, Vascular Research Center of Marseille, Marseille, France
| | - Stephane Burtey
- Department of Nephrology, Aix-Marseille University, AP-HM, Hôpital Conception, UMR_S 1076, Vascular Research Center of Marseille, Marseille, France
| | - Virginia Pascual
- Immunology, Baylor Institute for Immunology Research, Dallas, TX, USA
| | - Damien Chaussabel
- Systems Biology Department, Sidra Medical and Research Center, Doha, Qatar
| | - Laurent Chiche
- Department of Internal Medicine, Hôpital Européen, Marseille, France
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Abstract
Background There is controversy in medical literature over the outcome of patients with lupus nephritis (LN) class II. The aim of this study was to explore the risk of histological transformation (HT) and possible factors related to negative response to treatment in patients with mesangial LN class II. Methods A retrospective and multicenter study was carried out that includes patients who had received a diagnosis of LN class II on their first renal biopsy. Creatinine, urine sediment, and proteinuria were recorded at the time of the first biopsy, 6 months, and 1, 2, and 5 years after the first biopsy. Response to treatment, HT, and long-term outcome were evaluated. Results Forty-one patients were included. The manifestation at first biopsy was proteinuria greater than 0.5 g/d in 28 patients (68.29%; 8 [28.57%] of 28 patients had nephrotic syndrome), hematuria in 18 patients (43.90%), and deterioration of renal function in 3 patients (7.31%). During the follow-up (median, 8 years; range, 1–35 years), a new biopsy was performed in 18 patients (43.90%), and in 17 patients (17/18 [94.44%]), there was HT. Median time at rebiopsy was 32 months (range, 11–305 months). Of the 18 patients who had a second biopsy, 10 (55.55%) were on hydroxychloroquine versus 100% (19/19) of patients who did not undergo the procedure (P = 0.001). A year after the first renal biopsy, there are data available from 34 patients; of them, 24 patients (70.58%) had achieved response, and 10 patients (29.41%) had no response (NR) (missing data in 7). A higher 24-hour urinary protein at 6 months was predictor of worse outcome at 1 year, with statistical significance difference for the nonresponder group (median proteinuria, 2.3 g/d [range, 0–4.7 g/d]) compared with responders (median proteinuria, 0.28 g/d [range, 0–1.7 g/d]) (P = 0.0133). In the long-term follow-up (5 years), HT was the main cause of unfavorable outcome and was measured in 78.57% of patients (11/14 patients). Conclusions This series shows a high rate of HT in long-term follow-up. Proteinuria at 6 months made it possible to set aside patients who will have an unfavorable outcome in the long term and who will thus benefit from a more aggressive treatment. The results suggest that hydroxychloroquine had a nephroprotective effect.
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Deng D, Zhang P, Guo Y, Lim TO. A randomised double-blind, placebo-controlled trial of allogeneic umbilical cord-derived mesenchymal stem cell for lupus nephritis. Ann Rheum Dis 2017; 76:1436-1439. [PMID: 28478399 DOI: 10.1136/annrheumdis-2017-211073] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 04/12/2017] [Accepted: 04/13/2017] [Indexed: 01/12/2023]
Abstract
OBJECTIVE We evaluate the efficacy of human umbilical cord-derived mesenchymal stem cell (hUC-MSC) for the treatment of lupus nephritis (LN). Previous reports showed hUC-MSC could have dramatic treatment effect. METHODS Eighteen patients with WHO class III or IV LN were randomly assigned to hUC-MSC (dose 2×108 cells) or placebo. All patients received standard immunosuppressive treatment, which consisted of intravenous methylprednisolone and cyclophosphamide, followed by maintenance oral prednisolone and mycophenolate mofetil. RESULTS Remission occurred in 9 of 12 patients (75%) in the hUC-MSC group and 5 of 6 patients (83%) in the placebo group. Remission was defined as stabilisation or improvement in renal function, reduction in urinary red cells and protein. A similar proportion of patients on hUC-MSC and placebo achieved complete remission. Improvements in serum albumin, complement, renal function, Systemic Lupus Erythematosus Disease Activity Index and British Isles Lupus Assessment Group scores were similar in both groups. One patient on placebo had a stroke and another had ascites. One patient on hUC-MSC had leucopenia, pneumonia and subcutaneous abscess and another died of severe pneumonia. The trial was abandoned after 18 patients were enrolled when it had become obvious it would not demonstrate a positive treatment effect. CONCLUSION hUC-MSC has no apparent additional effect over and above standard immunosuppression. TRIAL REGISTRATION NUMBER NCT01539902; Results.
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Affiliation(s)
- DanQi Deng
- Department of Dermatology, 2nd Affiliated Hospital of Kunming Medical University, SLE Research Centre, Kunming, Yunnan, China
| | - Peilian Zhang
- Department of Dermatology, 2nd Affiliated Hospital of Kunming Medical University, SLE Research Centre, Kunming, Yunnan, China
| | - Yun Guo
- Department of Dermatology, 2nd Affiliated Hospital of Kunming Medical University, SLE Research Centre, Kunming, Yunnan, China
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Zickert A, Oke V, Parodis I, Svenungsson E, Sundström Y, Gunnarsson I. Interferon (IFN)-λ is a potential mediator in lupus nephritis. Lupus Sci Med 2016; 3:e000170. [PMID: 27933198 PMCID: PMC5133405 DOI: 10.1136/lupus-2016-000170] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 10/24/2016] [Accepted: 10/26/2016] [Indexed: 02/01/2023]
Abstract
OBJECTIVES Interferon (IFN)-α is thought to be central in the pathogenesis for lupus nephritis (LN) and recent studies also indicate a role for IFNλ. Little is known about these cytokines in the context of treatment response. We studied levels of IFNα and IFNλ in patients with LN in association with clinical and histological response (HR) to treatment. METHODS Fifty-six patients with active LN were included. Renal biopsies were performed at baseline and after immunosuppressive therapy. Serum levels of IFNα and IFNλ were analysed at both biopsy occasions and in 163 controls. The biopsies were evaluated according to the International Society of Nephrology/Renal Pathology Society classification. Clinical response was defined according to recent definitions. HR was defined as class I, II or III/IV-C on repeat biopsies. The expression of IFNλ in renal tissue was assessed by immunohistochemistry. RESULTS At baseline, serum levels of both IFNα and IFNλ were higher in patients versus controls (p=0.01 and p=0.03, respectively). There was no correlation between IFNα and IFNλ. Overall, IFNα decreased after treatment (p=0.003) but IFNλ remained unchanged. However in patients with HR, IFNλ decreased (p=0.01). The highest levels of IFNλ were seen in patients with poor HR. Immunostaining of renal tissue revealed expression of IFNλ, particularly in crescent formations, inflammatory infiltrates and tubular cells. CONCLUSIONS The study supports a role for IFNλ in LN, both in circulation and at a tissue level. Levels of IFNα and IFNλ did not correlate and were affected differently by immunosuppression, indicating that they are differently involved in subgroups of LN. Persistent increased levels of IFNλ were associated to an unfavourable HR to treatment.
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Affiliation(s)
- Agneta Zickert
- Department of Medicine, Unit of Rheumatology , Karolinska University Hospital, Karolinska Institute , Stockholm , Sweden
| | - Vilija Oke
- Department of Medicine, Unit of Rheumatology , Karolinska University Hospital, Karolinska Institute , Stockholm , Sweden
| | - Ioannis Parodis
- Department of Medicine, Unit of Rheumatology , Karolinska University Hospital, Karolinska Institute , Stockholm , Sweden
| | - Elisabet Svenungsson
- Department of Medicine, Unit of Rheumatology , Karolinska University Hospital, Karolinska Institute , Stockholm , Sweden
| | - Yvonne Sundström
- Department of Medicine, Unit of Rheumatology , Karolinska University Hospital, Karolinska Institute , Stockholm , Sweden
| | - Iva Gunnarsson
- Department of Medicine, Unit of Rheumatology , Karolinska University Hospital, Karolinska Institute , Stockholm , Sweden
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Recomendaciones y sugerencias a 4 preguntas clave en nefropatía lúpica: Extracto de la guía de práctica clínica 2015. Nefrologia 2016; 36:333-8. [DOI: 10.1016/j.nefro.2016.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 12/23/2015] [Accepted: 01/14/2016] [Indexed: 11/20/2022] Open
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Analysis of the effectiveness and safety of rituximab in patients with refractory lupus nephritis: a chart review. Clin Rheumatol 2016; 35:517-22. [DOI: 10.1007/s10067-015-3166-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 12/30/2015] [Accepted: 12/30/2015] [Indexed: 01/05/2023]
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Pesickova SS, Rysava R, Lenicek M, Vitek L, Potlukova E, Hruskova Z, Jancova E, Honsova E, Zavada J, Trendelenburg M, Tesar V. Prognostic value of anti-CRP antibodies in lupus nephritis in long-term follow-up. Arthritis Res Ther 2015; 17:371. [PMID: 26704903 PMCID: PMC4718018 DOI: 10.1186/s13075-015-0879-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 11/27/2015] [Indexed: 12/02/2022] Open
Abstract
Background Autoantibodies against monomeric C-reactive protein (anti-CRP-Ab) observed in patients with systemic lupus erythematosus (SLE) and lupus nephritis (LN) were suggested to be associated with active LN and a poor response to therapy during short-term follow-up. The aim of this study was to confirm this finding and to investigate the prognostic value of anti-CRP-Ab in patients with LN during long-term follow-up. Methods Sera of 57 SLE patients (47 women, 10 men) with biopsy proven LN and 122 healthy individuals were analyzed for the presence of anti-CRP-Ab by in-house ELISA. Anti-CRP-Ab levels were studied in relation to routine laboratory tests, urine analysis, levels of C3, C4, other immunological markers and the overall disease activity as assessed by Systemic Lupus Erythematosus Disease Activity Index (SLEDAI). The prognostic value of anti-CRP-Ab was tested in a subgroup of 29 newly diagnosed LN patients (median follow-up 5.9 years). Response to therapy at various time points was assessed with respect to baseline anti-CRP-Ab levels. At least partial response in the first/second year of treatment was considered as a “favorable outcome”, while non-response, renal flare or end stage renal disease were considered as “unfavorable outcome”. Results Anti-CRP-Ab were only detected in patients with active renal disease and their levels correlated with SLEDAI (rs = 0.165, p = 0.002). The time to response was shorter in patients being anti-CRP-Ab negative at baseline compared to anti-CRP-Ab positive patients, p = 0.037. In the second year of therapy, baseline anti-CRP-Ab positivity was a significant predictor of “unfavorable outcome” (OR [95 % CI] = 15.6 [1.2-771]; p = 0.021). The predictive value of “baseline anti-CRP positivity” further increased when combined with “non-response to therapy in the first year”. Baseline anti-CRP-Ab positivity was not a predictor of “unfavorable outcome” at the end of follow-up, (OR [95 % CI] = 5.5 [0.6-71.1], p = 0.169). Conclusions Baseline serum levels of anti-CRP-Ab seem to be a strong risk factor for a composite outcome of non-response, renal flare or end stage renal disease after two years of standard treatment of LN. The response to therapy seems to be delayed in anti-CRP-Ab positive patients. Electronic supplementary material The online version of this article (doi:10.1186/s13075-015-0879-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Satu Sinikka Pesickova
- Department of Nephrology, General University Hospital and First Faculty of Medicine, Charles University, Prague, U Nemocnice 2, 12808 Prague 2, Czech Republic. .,Dialcorp, Hemodialysis unit, Prague, Ohradni 1368, 14000 Prague 4, Czech Republic.
| | - Romana Rysava
- Department of Nephrology, General University Hospital and First Faculty of Medicine, Charles University, Prague, U Nemocnice 2, 12808 Prague 2, Czech Republic.
| | - Martin Lenicek
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University, Prague, Katerinska 32, 12808 Prague 2, Czech Republic.
| | - Libor Vitek
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University, Prague, Katerinska 32, 12808 Prague 2, Czech Republic. .,Fourth Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University, Prague, U Nemocnice 2, 12808 Prague 2, Czech Republic.
| | - Eliska Potlukova
- Third Department of Medicine, General University Hospital and First Faculty of Medicine, Charles University, Prague, U Nemocnice 2, 12808 Prague 2, Czech Republic. .,Division of Internal Medicine, University Hospital Basel, Basel, Spitalstrasse 21, 4031 Basel, Switzerland.
| | - Zdenka Hruskova
- Department of Nephrology, General University Hospital and First Faculty of Medicine, Charles University, Prague, U Nemocnice 2, 12808 Prague 2, Czech Republic.
| | - Eva Jancova
- Department of Nephrology, General University Hospital and First Faculty of Medicine, Charles University, Prague, U Nemocnice 2, 12808 Prague 2, Czech Republic.
| | - Eva Honsova
- Department of Pathology, Institute for Clinical and Experimental Medicine, Prague, Videnska 1958/9, 140 21 Prague 4, Czech Republic.
| | - Jakub Zavada
- Institute of Rheumatology, First Faculty of Medicine, Charles University, Prague, Na Slupi 4, 128 50 Prague 2, Czech Republic.
| | - Marten Trendelenburg
- Division of Internal Medicine, University Hospital Basel, Basel, Spitalstrasse 21, 4031 Basel, Switzerland. .,Laboratory of Clinical Immunology, Department of Biomedicine, University Hospital Basel, Basel, Spitalstrasse 21, 4031, Switzerland.
| | - Vladimir Tesar
- Department of Nephrology, General University Hospital and First Faculty of Medicine, Charles University, Prague, U Nemocnice 2, 12808 Prague 2, Czech Republic.
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Mbuli L, Mapiye D, Okpechi I. Lupus nephritis is associated with poor pregnancy outcomes in pregnant SLE patients in Cape Town: a retrospective analysis. Pan Afr Med J 2015; 22:365. [PMID: 27022425 PMCID: PMC4789183 DOI: 10.11604/pamj.2015.22.365.7897] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 12/01/2015] [Indexed: 11/25/2022] Open
Abstract
Introduction Systemic lupus erythematosus (SLE) is a multi-system auto-immune disease common in females of child-bearing age. The effect of pregnancy on SLE and vice versa have not been well characterised in Africans. The aim of this study is to describe the pregnancy outcomes of patients with SLE presenting to the maternity department of Groote Schuur Hospital, Cape Town. Methods This study was designed as a retrospective review of records of pregnant women known with SLE and followed-up at the maternity section of Groote Schuur Hospital. The duration of survey was from the 1st January 2003 to 31st December 2013. Results There were 61 pregnancies reviewed in 49 patients; 80.3% of the pregnancies were in patients of mixed ancestry and the rest (19.7%) in black African patients. The mean age at presentation of the current pregnancy was 27.2±5.0 years. Mean gestational age at presentation and delivery was 13.0 ± 6.0 weeks and 28.9 ± 9.8 weeks respectively and 47.5% of the pregnancies were in patients with lupus nephritis (LN). Thirty nine (63.9%) pregnancies reached the third trimester and 11.5% of all pregnancies ended in the first trimester. There was a lower number of live births to mothers of African ancestry than to those of mixed ancestry (p=0.001). In 55.7% of the pregnancies, no flare was reported while a renal flare was reported in 23%. Pregnancies in patients with LN had higher frequencies of flares (58.6% vs 31.3%; p=0.032), pre-eclampsia (34.5% vs 12.5%; p=0.041), longer stay in hospital (12.0 ± 9.1 days vs 6.1 ± 5.1 days; p=0.004) and low birth weight babies (1.94 ± 1.02 kg vs 2.55±0.95 kg; p=0.046) than in patients without LN. Only 36 (59%) of the neonates were discharged home alive and of these 2 (5.6%) were to mothers of black African ancestry (p=0.001). Conclusion Increased lupus activity in pregnant SLE patients may account for the increased deaths of neonates born to SLE mothers. Patients of black African descent and those with LN tend to have a poorer outcome. A multi-disciplinary approach to the management of SLE patients (of child-bearing age or pregnant) needs to be further assessed for better outcomes.
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Affiliation(s)
- Lindisa Mbuli
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa
| | - Darlington Mapiye
- South Africa National Bioinformatics Institute (SANBI), University of the Western Cape, Cape Town, South Africa
| | - Ikechi Okpechi
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa; Division of Nephrology and Hypertension, University of Cape Town, Cape Town, South Africa
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Schneider M, Mosca M, Pego-Reigosa JM, Hachulla E, Teh LS, Perna A, Koscielny V, Pike J, Lobosco S, Apolone G. Understanding remission in real-world lupus patients across five European countries. Lupus 2015; 25:505-12. [PMID: 26635245 DOI: 10.1177/0961203315619030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 11/02/2015] [Indexed: 02/01/2023]
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease associated with increased mortality and significant personal, psychological and socioeconomic consequences. An agreed definition of remission is needed and lacking. We sought to visualize 'remission in SLE' in European patients considered by their physicians to be 'in remission' by comparing the reported symptom burden as reported by treating physicians for patients considered to be 'in remission' and those not considered to be 'in remission'. Data for 1227 patients drawn from a multinational, real-world survey of patients with SLE consulting practising rheumatologists and nephrologists in France, Germany, Italy, Spain, and the UK show that physicians classed their patients as 'in remission' despite a considerable ongoing symptom burden and intensive immunosuppressive medication. Patients considered to be 'in remission' still had a mean of 2.68 current symptoms vs 5.48 for those considered to be not 'in remission' (p < 0.0001). The most common symptoms among those seen to be 'in remission' were joint symptoms, fatigue, pain, mucocutaneous involvement, haematological manifestations and kidney abnormalities. The current analysis highlights important ongoing disease activity, symptom burden and immunosuppressive medication in European patients with SLE considered by their treating physician to be 'in remission'. For a further improvement of outcome, there is an urgent need for an international consensus on the definitions for remission among patients with SLE.
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Affiliation(s)
- M Schneider
- Policlinic of Rheumatology, Heinrich-Heine University, Dusseldorf, Germany
| | - M Mosca
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - J M Pego-Reigosa
- Rheumatology Section, Hospital do Meixoeiro (Complexo Hospitalario Universitario de Vigo), Instituto de Investigación Biomédica de Vigo (IBIV), Vigo, Spain
| | - E Hachulla
- National Centre for Auto-immune and Systemic Diseases, Internal Medicine Department, Hôpital Claude Huriez, University of Lille Nord de France, Lille, France
| | - L-S Teh
- Department of Rheumatology, Royal Blackburn Hospital, Blackburn, UK
| | - A Perna
- Immune Inflammation & Infectious Diseases Global Franchise GlaxoSmithKline, Brentford, UK
| | - V Koscielny
- Immune Inflammation & Infectious Diseases Global Franchise GlaxoSmithKline, Brentford, UK
| | - J Pike
- Adelphi Real World, Adelphi Mill, Bollington, UK
| | - S Lobosco
- Adelphi Real World, Adelphi Mill, Bollington, UK
| | - G Apolone
- Scientific Directorate, IRCCS Arcispedale S. Maria Nuova, Reggio-Emilia, Italy
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Mejía-Vilet JM, Córdova-Sánchez BM, Arreola-Guerra JM, Morales-Buenrostro LE, Uribe-Uribe NO, Correa-Rotter R. Renal flare prediction and prognosis in lupus nephritis Hispanic patients. Lupus 2015; 25:315-24. [DOI: 10.1177/0961203315606985] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 08/25/2015] [Indexed: 11/15/2022]
Abstract
We performed a retrospective cohort analysis focusing on lupus nephritis renal flare incidence and outcome predictors. One hundred and eighteen patients with biopsy-proven lupus nephritis were segregated by induction/maintenance regimes. The primary outcome was the proportion of patients experiencing renal flare. Secondary assessment included doubling of serum creatinine and development of end-stage renal disease. After a median follow-up of 31 months (interquartile range 21–46) from the date of response to induction therapy, 47 patients (39.8%) developed a renal flare. Azathioprine-maintained patients had a higher risk of renal flare compared with mycophenolate mofetil-maintained patients (hazard ratio 2.53, 95% confidence interval 1.39–4.59, p < 0.01). Age (hazard ratio 0.96, 0.92–0.99, p = 0.03), serum creatinine at presentation (hazard ratio 1.76, 1.13–2.76, p = 0.01), complete remission after induction therapy (hazard ratio 0.28, 0.14–0.56, p < 0.001) and azathioprine maintenance therapy (hazard ratio 4.78, 2.16–10.6, p < 0.001) were associated with renal flare on multivariate analysis. Ten patients progressed to end-stage renal disease (8.5%) by a median 32.5 months. Age (hazard ratio 0.88, 0.77–0.99, p = 0.05), complete remission after induction therapy (hazard ratio 0.08, 0.01–0.94, p = 0.04) and severe nephritic flare (hazard ratio 13.6, 1.72–107.7, p = 0.01) were associated with end-stage renal disease development. Azathioprine maintenance therapy is associated with a higher incidence of relapse in the Mexican-mestizo population. Younger age and nephritic flares predict development of end-stage renal disease.
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Affiliation(s)
- J M Mejía-Vilet
- Department of Nephrology and Mineral Metabolism, National Medical Science and Nutrition Institute Salvador Zubirán, Mexico City, Mexico
| | - B M Córdova-Sánchez
- Department of Nephrology and Mineral Metabolism, National Medical Science and Nutrition Institute Salvador Zubirán, Mexico City, Mexico
| | - J M Arreola-Guerra
- Department of Nephrology and Mineral Metabolism, National Medical Science and Nutrition Institute Salvador Zubirán, Mexico City, Mexico
| | - L E Morales-Buenrostro
- Department of Nephrology and Mineral Metabolism, National Medical Science and Nutrition Institute Salvador Zubirán, Mexico City, Mexico
| | - N O Uribe-Uribe
- Department of Pathology, National Medical Science and Nutrition Institute Salvador Zubirán, Mexico City, Mexico
| | - R Correa-Rotter
- Department of Nephrology and Mineral Metabolism, National Medical Science and Nutrition Institute Salvador Zubirán, Mexico City, Mexico
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Mejía-Vilet JM, Arreola-Guerra JM, Córdova-Sánchez BM, Morales-Buenrostro LE, Uribe-Uribe NO, Correa-Rotter R. Comparison of Lupus Nephritis Induction Treatments in a Hispanic Population: A Single-center Cohort Analysis. J Rheumatol 2015; 42:2082-91. [PMID: 26373566 DOI: 10.3899/jrheum.150395] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2015] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To evaluate response rates in an adult lupus nephritis (LN) cohort in Mexico City, Mexico. METHODS We analyzed 165 patients with biopsy-proven LN histological International Society of Nephrology/Renal Pathology Society classes III, IV, or V, distributed by treatment drug in 3 groups: mycophenolate mofetil (MMF; dosage > 2 g/day per 6 mos, n = 63), intravenous cyclophosphamide (IVC; 0.7 g/m(2) body surface area monthly per 6 pulses, n = 66), or azathioprine (AZA; dosage > 1.5 mg/kg/day per 6 mos, n = 36). Median followup was 31 ± 18 months. The primary endpoint was the proportion of patients achieving complete renal response (CR). Secondary endpoints included the proportion of patients achieving renal response (complete or partial), renal flare-free survival, doubling of serum creatinine, and progression to endstage renal disease (ESRD). RESULTS MMF induction was superior to IVC (HR 2.00, 95% CI 1.23-3.25, p = 0.005) and AZA (HR 2.12, 95% CI 1.23-3.66, p = 0.007) in the primary endpoint. Censored CR rates at 6, 12, 24, and 36 months were 32.6%, 56.1%, 76.6%, and 94.1% for MMF; 24.2%, 34.4%, 57.9%, and 62.1% for IVC; and 8.4%, 39.8%, 49.7%, and 49.7% for AZA. MMF was also superior in renal response to treatment and renal flare-free survival outcomes. There were no differences between groups in doubling of serum creatinine or progression to ESRD. The induction treatment with MMF (HR 2.04, 95% CI 1.25-3.33, p = 0.005) and absence of vascular lesions on renal biopsy (HR 2.05, 95% CI 1.25-3.37, p = 0.004) were associated with CR, whereas proteinuria at the time of presentation was negatively associated with CR (HR 0.91, 95% CI 0.84-0.98, p = 0.013). CONCLUSION MMF induction therapy is superior to IVC and AZA in patients with LN of Mexican-mestizo race.
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Affiliation(s)
- Juan Manuel Mejía-Vilet
- From the Department of Nephrology and Mineral Metabolism, and Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.J.M. Mejía-Vilet, MD, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; J.M. Arreola-Guerra, MD, Attending Physician, Department of Internal Medicine, and Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; B.M. Córdova-Sánchez, MD, Nephrology Fellow, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; L.E. Morales-Buenrostro, MD, PhD, Research Scientist, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; N.O. Uribe-Uribe, MD, Pathologist, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; R. Correa-Rotter, MD, Head of Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
| | - José Manuel Arreola-Guerra
- From the Department of Nephrology and Mineral Metabolism, and Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.J.M. Mejía-Vilet, MD, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; J.M. Arreola-Guerra, MD, Attending Physician, Department of Internal Medicine, and Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; B.M. Córdova-Sánchez, MD, Nephrology Fellow, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; L.E. Morales-Buenrostro, MD, PhD, Research Scientist, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; N.O. Uribe-Uribe, MD, Pathologist, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; R. Correa-Rotter, MD, Head of Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
| | - Bertha M Córdova-Sánchez
- From the Department of Nephrology and Mineral Metabolism, and Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.J.M. Mejía-Vilet, MD, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; J.M. Arreola-Guerra, MD, Attending Physician, Department of Internal Medicine, and Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; B.M. Córdova-Sánchez, MD, Nephrology Fellow, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; L.E. Morales-Buenrostro, MD, PhD, Research Scientist, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; N.O. Uribe-Uribe, MD, Pathologist, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; R. Correa-Rotter, MD, Head of Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
| | - Luis Eduardo Morales-Buenrostro
- From the Department of Nephrology and Mineral Metabolism, and Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.J.M. Mejía-Vilet, MD, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; J.M. Arreola-Guerra, MD, Attending Physician, Department of Internal Medicine, and Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; B.M. Córdova-Sánchez, MD, Nephrology Fellow, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; L.E. Morales-Buenrostro, MD, PhD, Research Scientist, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; N.O. Uribe-Uribe, MD, Pathologist, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; R. Correa-Rotter, MD, Head of Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
| | - Norma O Uribe-Uribe
- From the Department of Nephrology and Mineral Metabolism, and Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.J.M. Mejía-Vilet, MD, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; J.M. Arreola-Guerra, MD, Attending Physician, Department of Internal Medicine, and Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; B.M. Córdova-Sánchez, MD, Nephrology Fellow, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; L.E. Morales-Buenrostro, MD, PhD, Research Scientist, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; N.O. Uribe-Uribe, MD, Pathologist, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; R. Correa-Rotter, MD, Head of Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
| | - Ricardo Correa-Rotter
- From the Department of Nephrology and Mineral Metabolism, and Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.J.M. Mejía-Vilet, MD, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; J.M. Arreola-Guerra, MD, Attending Physician, Department of Internal Medicine, and Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; B.M. Córdova-Sánchez, MD, Nephrology Fellow, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; L.E. Morales-Buenrostro, MD, PhD, Research Scientist, Attending Physician, Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; N.O. Uribe-Uribe, MD, Pathologist, Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán; R. Correa-Rotter, MD, Head of Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán.
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