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Samad A, Wobma H, Casey A. Innovations in the care of childhood interstitial lung disease associated with connective tissue disease and immune-mediated disorders. Pediatr Pulmonol 2024; 59:2321-2337. [PMID: 38837875 DOI: 10.1002/ppul.27068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/05/2024] [Accepted: 05/07/2024] [Indexed: 06/07/2024]
Abstract
Childhood interstitial lung disease (chILD) associated with connective tissue and immune mediated disorders is the second most common chILD diagnostic category. As knowledge of the molecular and genetic underpinnings of these rare disorders advances, the recognized clinical spectrum of associated pulmonary manifestations continues to expand. Pulmonary complications of these diseases, including ILD, confer increased risk for morbidity and mortality and contribute to increased complexity for providers tasked with managing the multiple organ systems that can be impacted in these systemic disorders. While pulmonologists play an important role in diagnosis and management of these conditions, thankfully they do not have to work alone. In collaboration with a multidisciplinary team of subspecialists, the pulmonary and other systemic manifestations of these conditions can be managed effectively together. The goal of this review is to familiarize the reader with the classic patterns of chILD and other pulmonary complications associated with primary immune-mediated disorders (monogenic inborn errors of immunity) and acquired systemic autoimmune and autoinflammatory diseases. In addition, this review will highlight current, emerging, and innovative therapeutic strategies and will underscore the important role of multidisciplinary management to improving outcomes for these patients.
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Affiliation(s)
- Aaida Samad
- Division of Pulmonary Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Holly Wobma
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Alicia Casey
- Division of Pulmonary Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
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Lupu A, Sasaran MO, Jechel E, Azoicai A, Alexoae MM, Starcea IM, Mocanu A, Nedelcu AH, Knieling A, Salaru DL, Burlea SL, Lupu VV, Ioniuc I. Undercover lung damage in pediatrics - a hot spot in morbidity caused by collagenoses. Front Immunol 2024; 15:1394690. [PMID: 38994372 PMCID: PMC11236559 DOI: 10.3389/fimmu.2024.1394690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 06/11/2024] [Indexed: 07/13/2024] Open
Abstract
Connective tissue represents the support matrix and the connection between tissues and organs. In its composition, collagen, the major structural protein, is the main component of the skin, bones, tendons and ligaments. Especially at the pediatric age, its damage in the context of pathologies such as systemic lupus erythematosus, scleroderma or dermatomyositis can have a significant negative impact on the development and optimal functioning of the body. The consequences can extend to various structures (e.g., joints, skin, eyes, lungs, heart, kidneys). Of these, we retain and reveal later in our manuscript, mainly the respiratory involvement. Manifested in various forms that can damage the chest wall, pleura, interstitium or vascularization, lung damage in pediatric systemic inflammatory diseases is underdeveloped in the literature compared to that described in adults. Under the threat of severe evolution, sometimes rapidly progressive and leading to death, it is necessary to increase the popularization of information aimed at physiopathological triggering and maintenance mechanisms, diagnostic means, and therapeutic directions among medical specialists. In addition, we emphasize the need for interdisciplinary collaboration, especially between pediatricians, rheumatologists, infectious disease specialists, pulmonologists, and immunologists. Through our narrative review we aimed to bring up to date, in a concise and easy to assimilate, general principles regarding the pulmonary impact of collagenoses using the most recent articles published in international libraries, duplicated by previous articles, of reference for the targeted pathologies.
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Affiliation(s)
- Ancuta Lupu
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Maria Oana Sasaran
- Faculty of Medicine, "George Emil Palade" University of Medicine, Pharmacy, Science and Technology, Targu Mures, Romania
| | - Elena Jechel
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Alice Azoicai
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Monica Mihaela Alexoae
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Iuliana Magdalena Starcea
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Adriana Mocanu
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Alin Horatiu Nedelcu
- Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Anton Knieling
- Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Delia Lidia Salaru
- Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Stefan Lucian Burlea
- Public Health and Management Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Vasile Valeriu Lupu
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Ileana Ioniuc
- Mother and Child Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
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Zinellu A, Mangoni AA. The association between the neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and monocyte-to-lymphocyte ratio and systemic sclerosis and its complications: a systematic review and meta-analysis. Front Immunol 2024; 15:1395993. [PMID: 38799443 PMCID: PMC11116674 DOI: 10.3389/fimmu.2024.1395993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 04/26/2024] [Indexed: 05/29/2024] Open
Abstract
Introduction The identification of new, easily measurable biomarkers might assist clinicians in diagnosing and managing systemic sclerosis (SSc). Although the full blood count is routinely assessed in the evaluation of SSc, the diagnostic utility of specific cell-derived inflammatory indices, i.e., neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and monocyte-to-lymphocyte ratio (MLR), has not been critically appraised in this patient group. Methods We conducted a systematic review and meta-analysis of studies investigating the NLR, PLR, and MLR, in SSc patients and healthy controls and in SSc patients with and without relevant complications. PubMed, Scopus, and Web of Science were searched from inception to 23 February 2024. Risk of bias and certainty of evidence were assessed using validated tools. Results In 10 eligible studies, compared to controls, patients with SSc had significantly higher NLR (standard mean difference, SMD=0.68, 95% CI 0.46 to 0.91, p<0.001; I2 = 74.5%, p<0.001), and PLR values (SMD=0.52, 95% CI 0.21 to 0.83, p=0.001; I2 = 77.0%, p=0.005), and a trend towards higher MLR values (SMD=0.60, 95% CI -0.04 to 1.23, p=0.066; I2 = 94.1%, p<0.001). When compared to SSc patients without complications, the NLR was significantly higher in SSc with interstitial lung disease (ILD, SMD=0.31, 95% CI 0.15 to 0.46, p<0.001; I2 = 43.9%, p=0.11), pulmonary arterial hypertension (PAH, SMD=1.59, 95% CI 0.04 to 3.1, p=0.045; I2 = 87.6%, p<0.001), and digital ulcers (DU, SMD=0.43, 95% CI 0.13 to 0.74, p=0.006; I2 = 0.0%, p=0.49). The PLR was significantly higher in SSc patients with ILD (SMD=0.42, 95% CI 0.25 to 0.59, p<0.001; I2 = 24.8%, p=0.26). The MLR was significantly higher in SSc patients with PAH (SMD=0.63, 95% CI 0.17 to 1.08, p=0.007; I2 = 66.0%, p=0.086), and there was a trend towards a higher MLR in SSc patients with ILD (SMD=0.60, 95% CI -0.04 to 1.23, p=0.066; I2 = 94.1%, p<0.001). Discussion Pending the results of appropriately designed prospective studies, the results of this systematic review and meta-analysis suggest that blood cell-derived indices of inflammation, particularly the NLR and PLR, may be useful in the diagnosis of SSc and specific complications. Systematic review registration https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42024520040.
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Affiliation(s)
- Angelo Zinellu
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Arduino A. Mangoni
- Discipline of Clinical Pharmacology, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
- Department of Clinical Pharmacology, Flinders Medical Centre, Southern Adelaide Local Health Network, Bedford Park, SA, Australia
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Jeong JE, Kim SH. Clinical characteristics of juvenile systemic sclerosis in Korea: 31-year single-center study. JOURNAL OF RHEUMATIC DISEASES 2024; 31:25-32. [PMID: 38130955 PMCID: PMC10730803 DOI: 10.4078/jrd.2023.0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/28/2023] [Accepted: 10/30/2023] [Indexed: 12/23/2023]
Abstract
Objective To evaluate the clinical and laboratory characteristics, therapeutic drugs, and prognosis of juvenile systemic sclerosis (JSSc) at a single center in Korea. Methods This study was a retrospective analysis of patients with JSSc aged <16 years at disease onset and who were treated at our hospital between January 1992 and April 2023. All patients met the Pediatric Rheumatology European Society/American College of Rheumatology/European League against Rheumatism provisional classification criteria for JSSc, and those with localized scleroderma (morphea) were excluded. Results Among the 13 patients, proximal skin sclerosis (100%), Raynaud's phenomenon (RP) (84.6%), and sclerodactyly (69.2%) were present at the time of diagnosis. The most common symptom before diagnosis was RP, which was present in 10 patients (76.9%), whereas proximal skin sclerosis was observed in only five patients (38.5%). Thirteen patients had positive anti-nuclear antibody (ANA). At the time of diagnosis, five individuals had findings suggestive of interstitial lung disease (ILD) on a pulmonary function test (PFT) or chest computed tomography (CT), two of whom were asymptomatic. During follow-up, three patients developed ILD, one developed renal dysfunction, one developed heart disease, and none died. Conclusion This study was the first descriptive analysis of clinical features of JSSc in South Korea. Clinical suspicion is essential for diagnosing JSSc in patients with RP, especially if ANA is positive; however, proximal skin sclerosis, which is crucial for diagnosing JSSc, was unrecognized in the early phase of the disease. PFT should be considered even if a patient is asymptomatic or has normal chest CT.
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Affiliation(s)
- Ji Eun Jeong
- Department of Pediatrics, Seoul National University Children’s Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Seong Heon Kim
- Department of Pediatrics, Seoul National University Children’s Hospital, Seoul National University College of Medicine, Seoul, Korea
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Apitz C, Girschick H. Systemic sclerosis-associated pulmonary arterial hypertension in children. Cardiovasc Diagn Ther 2021; 11:1137-1143. [PMID: 34527539 PMCID: PMC8410482 DOI: 10.21037/cdt-20-901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 12/23/2020] [Indexed: 11/06/2022]
Abstract
Systemic sclerosis (SSc) is a rare disease in childhood and is characterized by a combination of vasculopathy, inflammation, autoimmunity, and fibrogenesis with individually varying expression pattern. Pulmonary arterial hypertension (PAH) is a serious complication of SSc and affects approximately 10% of SSc patients. SSc-PAH is complex and difficult to diagnose, as symptoms are non-specific and may be complicated by other SSc-associated diseases such as interstitial lung disease or left heart disease. SSc-PAH patients can deteriorate rapidly, and disease progression can occur even in patients with mild PAH symptoms at diagnosis. Therefore, interdisciplinary care of SSc patients is essential, and treating physicians must be aware of the association between SSc and PAH. In order to detect PAH early, children with SSc should be regularly screened for PAH by pediatric cardiologists. If PAH is detected, a systematic diagnostic approach by trained PH specialists including careful phenotyping of PAH is required. Relevant interstitial lung disease and left heart disease should be ruled out in the differential diagnosis of SSc-PAH before starting any targeted therapy. Due to the progressive character of SSc-PAH known from adult studies, it appears appropriate to initiate targeted PAH-therapy in juvenile SSc-PAH early. Adapted from adult treatment algorithms, combination therapy regimens (addressing at least two pathophysiological pathways) are increasingly used for pediatric PAH patients, and there is growing evidence to support this approach also in SSc-PAH patients.
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Affiliation(s)
- Christian Apitz
- Division of Pediatric Cardiology, University Children’s Hospital Ulm, Ulm, Germany
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Maniscalco V, Marrani E, Rossi E, Maccora I, Mastrolia MV, Simonini G. Too young to fail: a case report on the effectiveness of tocilizumab for paediatric systemic sclerosis-associated interstitial lung disease. Scand J Rheumatol 2021; 50:491-492. [PMID: 33729083 DOI: 10.1080/03009742.2021.1881154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- V Maniscalco
- Rheumatology Unit, Meyer Children's University Hospital, Pediatric Residency, University of Florence, Florence, Italy
| | - E Marrani
- Rheumatology Unit, Meyer Children's University Hospital, Pediatric Residency, University of Florence, Florence, Italy
| | - E Rossi
- Department of Imaging, Meyer Children's University Hospital, Florence, Italy
| | - I Maccora
- Rheumatology Unit, Meyer Children's University Hospital, Pediatric Residency, University of Florence, Florence, Italy
| | - M V Mastrolia
- Rheumatology Unit, Meyer Children's University Hospital, Pediatric Residency, University of Florence, Florence, Italy
| | - G Simonini
- Department of Imaging, Meyer Children's University Hospital, Florence, Italy.,Rheumatology Unit, Meyer Children's University Hospital, Florence, Italy.,NEUROFARBA Department, University of Florence, Florence, Italy
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Abstract
Scleroderma is a rare disease that has two main forms: localized scleroderma (LS) and systemic sclerosis (SSc). Both are chronic diseases, can present in different patterns (subtypes), and are associated with extracutaneous involvement in pediatric patients. Morbidity and mortality is much worse for juvenile SSc with patients at risk for life-threatening lung, heart, and other visceral organ fibrosis and vasculopathy. Mortality is extremely rare in juvenile LS, but morbidity is common, with patients at risk for severe disfigurement and functional impairment. Scleroderma treatment is directed towards controlling inflammation and managing specific problems. Early diagnosis can greatly improve outcome.
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Affiliation(s)
- Suzanne C Li
- Department of Pediatrics, Hackensack Meridian School of Medicine at Seton Hall University, 30 Prospect Avenue, Hackensack, NJ 07601, USA; Division of Pediatric Rheumatology, Joseph M. Sanzari Children's Hospital, Hackensack University Medical Center, 30 Prospect Avenue, Hackensack, NJ 07601, USA.
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Couto SB, Sallum AM, Henriques LS, Malheiros DM, Silva CA, Vaisbich MH. Nephrotic syndrome as the first manifestation of juvenile systemic scleroderma. REVISTA BRASILEIRA DE REUMATOLOGIA 2017; 57:613-615. [PMID: 29173697 DOI: 10.1016/j.rbre.2014.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 08/17/2014] [Indexed: 11/30/2022] Open
Affiliation(s)
- Saulo B Couto
- Universidade de São Paulo (USP), Faculdade de Medicina, Hospital das Clínicas, Instituto da Criança, Unidade de Nefrologia Pediátrica, São Paulo, SP, Brazil
| | - Adriana M Sallum
- Universidade de São Paulo (USP), Faculdade de Medicina, Hospital das Clínicas, Instituto da Criança, Unidade de Nefrologia Pediátrica, São Paulo, SP, Brazil
| | - Luciana S Henriques
- Universidade de São Paulo (USP), Faculdade de Medicina, Hospital das Clínicas, Instituto da Criança, Unidade de Nefrologia Pediátrica, São Paulo, SP, Brazil
| | - Denise M Malheiros
- Universidade de São Paulo (USP), Faculdade de Medicina, Hospital das Clínicas, Departamento de Patologia, São Paulo, SP, Brazil
| | - Clovis A Silva
- Universidade de São Paulo (USP), Faculdade de Medicina, Hospital das Clínicas, Departamento de Patologia, São Paulo, SP, Brazil
| | - Maria H Vaisbich
- Universidade de São Paulo (USP), Faculdade de Medicina, Hospital das Clínicas, Instituto da Criança, Unidade de Nefrologia Pediátrica, São Paulo, SP, Brazil.
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Juvenile Systemic Sclerosis: Review of 17 Portuguese Patients. JOURNAL OF SCLERODERMA AND RELATED DISORDERS 2017. [DOI: 10.5301/jsrd.5000242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Introduction Juvenile systemic sclerosis (jSSc) represents about 10% of all systemic sclerosis patients. We aim to describe the clinical characteristics and disease progression of children with jSSc followed in Portuguese pediatric rheumatology centers. Methods Clinical and laboratory features as well as medication and outcomes of jSSc children were reviewed. Results Seventeen patients were included in the analysis, 5 of whom had overlap syndromes. Thirteen girls, with a mean age at diagnosis of 10.6 ± 3.9 years and mean disease duration of 10.5 ± 3.9 years, of these 12 had diffuse cutaneous scleroderma. In 94% cases, the first symptom was Raynaud's phenomenon (RP), followed by arthritis and/or puffy hands (59%). Pulmonary involvement was documented in 7 patients at disease diagnosis, despite the paucity of respiratory complaints. Thirteen patients presented periungual capillaropathy. During follow-up, RP and skin thickening were the most frequent clinical manifestations (100%), followed by arthralgia (94%) and arthritis (76%). Pulmonary, as well as gastrointestinal involvement was documented in eight patients. Sixteen children were antinuclear (ANA) positive, eight tested positive for anti-Scl70, and one for anti-fibrillarin antibodies. Immunosuppressants (94%), proton pump inhibitors (76%) and glucocorticoids (65%) were the most common therapeutic options. One child needed autologous bone marrow transplant due to severe refractory disease. An improvement of skin thickening and stabilization of pulmonary involvement was documented in most cases. No deaths were registered in this cohort. Conclusions Raynaud's phenomenon as well as capillaroscopic abnormalities were almost universal at disease presentation. Internal organ involvement was common and occurred early during disease course, although asymptomatic in several cases.
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Multimodality thoracic imaging of juvenile systemic sclerosis: emphasis on clinical correlation and high-resolution CT of pulmonary fibrosis. AJR Am J Roentgenol 2015; 204:408-22. [PMID: 25615765 DOI: 10.2214/ajr.14.12461] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVE. Juvenile systemic sclerosis is a rare multisystem autoimmune disorder characterized by vasculopathy and multiorgan fibrosis. Cardiopulmonary complications are the leading cause of morbidity and mortality. Although pulmonary fibrosis is the complication that is most common and well described, cardiovascular and esophageal involvement may also be observed. In this article, common thoracic findings in juvenile systemic sclerosis will be discussed. We will focus on chest CT, including CT findings of pulmonary fibrosis and associated grading methods, as well as cardiac MRI and esophageal imaging. CONCLUSION. Radiologists play a pivotal role in the initial diagnosis and follow-up evaluation of pediatric patients with systemic sclerosis. Treatment decisions and prognostic assessment are directly related to imaging findings along with clinical evaluation.
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Couto SB, Sallum AM, Henriques LS, Malheiros DM, Silva CA, Vaisbich MH. [Nephrotic syndrome as the first manifestation of juvenile systemic scleroderma.]. REVISTA BRASILEIRA DE REUMATOLOGIA 2014; 57:S0482-5004(14)00188-0. [PMID: 25440709 DOI: 10.1016/j.rbr.2014.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 08/17/2014] [Indexed: 10/24/2022] Open
Abstract
Renal involvement occurs in 1%-12% in juvenile systemic sclerosis (JSSc) patients, mainly with arterial hypertension, proteinuria and scleroderma renal crisis. We report herein a patient who presented nephrotic syndrome (NS) as the first manifestation of JSSc with focal segmental glomerulosclerosis (FSGS). A female patient presented steroid-sensitive NS at the age of 12 years. At 14 years, she had orbital and lower limbs edema, arterial hypertension, sclerodactyly and proximal skin sclerosis. Moderate capillary dilation and mild focal devascularization were observed in nailfold capillaroscopy, compatible with early stage of scleroderma (scleroderma pattern). Percutaneous renal biopsy guided by ultrasound revealed focal segmental glomerulosclerosis and direct immunofluorescence were negative. Therefore, she fullfilled the provisional classification criteria for JSSc. Patient was treated with oral 25-hydroxyvitamin D (800 IU/day), methotrexate (0.5mg/kg/week) and amlodipin (0.15 mg/kg). Prednisone (60 mg/m2/day) was administered for 4 consecutive weeks, followed by alternate-day (40mg/m2) for 2 consecutive months, with tapering for 4 months and then stopping this medication. Currently she is being treated with methotrexate 15 mg/week, without edema and proteinuria. In conclusion, we reported a rare case of NS with FSGS as the first manifestation of scleroderma. Therefore, renal biopsy is mandatory in JSSc patients with sustained proteinuria or NS.
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Affiliation(s)
- Saulo B Couto
- Unidade de Nefrologia Pediátrica do Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), São Paulo, SP, Brasil
| | - Adriana M Sallum
- Unidade de Nefrologia Pediátrica do Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), São Paulo, SP, Brasil
| | - Luciana S Henriques
- Unidade de Nefrologia Pediátrica do Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), São Paulo, SP, Brasil
| | - Denise M Malheiros
- Departamento de Patologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), São Paulo, SP, Brasil
| | - Clovis A Silva
- Departamento de Patologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), São Paulo, SP, Brasil
| | - Maria H Vaisbich
- Unidade de Nefrologia Pediátrica do Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HC-FMUSP), São Paulo, SP, Brasil.
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Reiff A, Weinberg KI, Triche T, Masinsin B, Mahadeo KM, Lin CH, Brown D, Parkman R. T lymphocyte abnormalities in juvenile systemic sclerosis patients. Clin Immunol 2013; 149:146-55. [PMID: 23994768 DOI: 10.1016/j.clim.2013.07.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/24/2013] [Accepted: 07/30/2013] [Indexed: 12/29/2022]
Abstract
Multi-center evaluations of pediatric patients with juvenile systemic sclerosis (jSSc) have suggested that the pathogenesis of jSSc may differ from that of systemic sclerosis (SSc) in adult patients. Therefore, we undertook to identify abnormalities in the T lymphocytes of jSSc patients and to determine if they differed from the abnormalities reported in the T lymphocytes of adult SSc patients. We identified decreases in the frequency of resting regulatory T lymphocytes and an increased frequency of CD45RA expressing effector memory (EMRA) CD4 T lymphocytes, which were characterized by an increased frequency of CCR7 protein expressing cells. Neither the increases in the EMRA subpopulation nor the increased CCR7 protein expression have been reported in adult SSc patients. The decrease in resting regulatory T lymphocytes in jSSc patients may permit the expansion of the disease initiating CD4 T lymphocytes present in the CCR7 expressing EMRA CD4 T lymphocyte subpopulation.
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Affiliation(s)
- Andreas Reiff
- Division of Rheumatology, Children's Hospital Los Angeles, 4650 Sunset Blvd., Mail Stop 60, Los Angeles, CA 90027, USA; Department of Pediatrics, Keck School of Medicine, University of Southern California, USA.
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Abstract
Pediatric scleroderma includes 2 major groups of clinical entities, systemic sclerosis (SSc) and localized scleroderma (LS). Although both share a common pathophysiology, their clinical manifestations differ. LS is typically confined to the skin and underlying subcutis, with up to a quarter of patients showing extracutaneous disease manifestations such as arthritis and uveitis. Vascular, cutaneous, gastrointestinal, pulmonary, and musculoskeletal involvement are most commonly seen in children with SSc. Treatment of both forms targets the active inflammatory stage and halts disease progression; however, progress needs to be made toward the development of more effective antifibrotic therapy to help reverse disease damage.
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