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Janahiraman S, Shahril NS, Jayaraj VJ, Ch'ng S, Eow LH, Mageswaren E, Lim AL, Chong HC, Ong PS, Ismail AM, Rahim SMA, Ng CR, Suahilai DM, Ramlan AH, Too CL, Leong CO. A hierarchical cluster analysis for clinical profiling of tofacitinib treatment response in patients with rheumatoid arthritis. Clin Rheumatol 2024; 43:2489-2501. [PMID: 38922551 DOI: 10.1007/s10067-024-07035-x] [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: 01/25/2024] [Revised: 05/19/2024] [Accepted: 06/14/2024] [Indexed: 06/27/2024]
Abstract
Tofacitinib is the first oral JAK inhibitor approved for treating rheumatoid arthritis (RA). To enhance our understanding of tofacitinib drug response, we used hierarchical clustering to analyse the profiles of patient who responded to the treatment in a real-world setting. Patients who commenced on tofacitinib treatment were selected from 12 major rheumatology centres in Malaysia. The aim was to assess their response to tofacitinib defined as achieving DAS28-CRP/ESR ≤ 3.2 and DAS28 improvement > 1.2 at 12 weeks. A hierarchical clustering analysis was performed using sociodemographic and clinical parameters at baseline. All 163 RA patients were divided into three clusters (Clusters 1, 2 and 3) based on specific clinical factors at baseline including bone erosion, antibody positivity, disease activity and anaemia status. Cluster 1 consisted of RA patients without bone erosion, antibody negative, low baseline disease activity measure and absence of anaemia. Cluster 2 comprised of patients without bone erosion, RF positivity, anti-CCP negativity, moderate to high baseline disease activity score and absence of anaemia. Cluster 3 patients had bone erosion, antibody positivity, high baseline disease activity and anaemia. The response rates to tofacitinib varied among the clusters: Cluster 1 had a 79% response rate, Cluster 2 had a 66% response rate, and Cluster 3 had a 36% response rate. The differences in response rates between the three clusters were found to be statistically significant. This cluster analysis study indicates that patients who are seronegative and have low disease activity, absence of bone erosion and no signs of anaemia may have a higher likelihood of benefiting from tofacitinib therapy. By identifying clinical profiles that respond to tofacitinib treatment, we can improve treatment stratification yielding significant benefits and better health outcomes for individuals with RA.
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Affiliation(s)
- Sivakami Janahiraman
- School of Postgraduate Studies, IMU University, Kuala Lumpur, Malaysia.
- Department of Pharmacy, Hospital Selayang, Ministry of Health Malaysia, Selangor Darul Ehsan, Malaysia.
| | - Nor Shuhaila Shahril
- Rheumatology Unit, Department of Medicine, Hospital Putrajaya, Ministry of Health Malaysia, Putrajaya, Malaysia
| | - Vivek Jason Jayaraj
- Sector for Biostatistics & Data Repository, National Institutes of Health Complex, Ministry of Health Malaysia, Selangor Darul Ehsan, Malaysia
| | - Suyin Ch'ng
- Rheumatology Unit, Department of Medicine, Hospital Selayang, Ministry of Health Malaysia, Selangor Darul Ehsan, Malaysia
| | - Liu Hong Eow
- Rheumatology Unit, Department of Medicine, Hospital Tuanku Ja'afar Seremban, Ministry of Health Malaysia, Negeri Sembilan, Malaysia
| | - Eashwary Mageswaren
- Rheumatology Unit, Department of Medicine, Hospital Tengku Ampuan Rahimah, Ministry of Health Malaysia, Selangor Darul Ehsan, Malaysia
| | - Ai Lee Lim
- Rheumatology Unit, Department of Medicine, Hospital Pulau Pinang, Ministry of Health Malaysia, Pulau Pinang, Malaysia
| | - Hwee Cheng Chong
- Rheumatology Unit, Department of Medicine, Hospital Melaka, Ministry of Health Malaysia, Melaka, Malaysia
| | - Ping Seung Ong
- Rheumatology Unit, Department of Medicine, Hospital Raja Permaisuri Bainun, Ministry of Health Malaysia, Perak Darul Ridzuan, Malaysia
| | - Asmahan Mohamed Ismail
- Rheumatology Unit, Department of Medicine, Hospital Raja Perempuan Zainab II, Ministry of Health Malaysia, Kelantan Darul Naim, Malaysia
| | - Siti Mariam Ab Rahim
- Rheumatology Unit, Department of Medicine, Hospital Sultanah Nur Zahirah, Ministry of Health Malaysia, Terengganu Darul Iman, Malaysia
| | - Chun Ruh Ng
- Rheumatology Unit, Department of Medicine, Hospital Sultan Ismail, Ministry of Health Malaysia, Johor Darul Ta'zim, Malaysia
| | - Dayang Masyrinartie Suahilai
- Rheumatology Unit, Department of Medicine, Hospital Tengku Ampuan Afzan, Ministry of Health Malaysia, Pahang Darul Makmur, Malaysia
| | - Azwarina Hanim Ramlan
- Rheumatology Unit, Department of Medicine, Hospital Sultanah Bahiyah, Ministry of Health Malaysia, Kedah Darul Aman, Malaysia
| | - Chun Lai Too
- Immunogenetic Unit, Institute for Medical Research, National Institutes of Health Complex, Ministry of Health Malaysia, Selangor Darul Ehsan, Malaysia
| | - Chee Onn Leong
- Centre for Cancer and Stem Cell Research Development and Innovation (IRDI), Institute for Research, IMU University, Kuala Lumpur, Malaysia
- AGTC Genomics, Kuala Lumpur, Malaysia
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Rachubinski AL, Wallace E, Gurnee E, Estrada BAE, Worek KR, Smith KP, Araya P, Waugh KA, Granrath RE, Britton E, Lyford HR, Donovan MG, Eduthan NP, Hill AA, Martin B, Sullivan KD, Patel L, Fidler DJ, Galbraith MD, Dunnick CA, Norris DA, Espinosa JM. JAK inhibition decreases the autoimmune burden in Down syndrome. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.13.24308783. [PMID: 38946973 PMCID: PMC11213071 DOI: 10.1101/2024.06.13.24308783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Individuals with Down syndrome (DS), the genetic condition caused by trisomy 21 (T21), display clear signs of immune dysregulation, including high rates of autoimmune disorders and severe complications from infections. Although it is well established that T21 causes increased interferon responses and JAK/STAT signaling, elevated autoantibodies, global immune remodeling, and hypercytokinemia, the interplay between these processes, the clinical manifestations of DS, and potential therapeutic interventions remain ill defined. Here, we report a comprehensive analysis of immune dysregulation at the clinical, cellular, and molecular level in hundreds of individuals with DS. We demonstrate multi-organ autoimmunity of pediatric onset concurrent with unexpected autoantibody-phenotype associations. Importantly, constitutive immune remodeling and hypercytokinemia occur from an early age prior to autoimmune diagnoses or autoantibody production. We then report the interim analysis of a Phase II clinical trial investigating the safety and efficacy of the JAK inhibitor tofacitinib through multiple clinical and molecular endpoints. Analysis of the first 10 participants to complete the 16-week study shows a good safety profile and no serious adverse events. Treatment reduced skin pathology in alopecia areata, psoriasis, and atopic dermatitis, while decreasing interferon scores, cytokine scores, and levels of pathogenic autoantibodies without overt immune suppression. Additional research is needed to define the effects of JAK inhibition on the broader developmental and clinical hallmarks of DS. ClinicalTrials.gov identifier: NCT04246372.
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Affiliation(s)
- Angela L. Rachubinski
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pediatrics, Section of Developmental Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Elizabeth Wallace
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Emily Gurnee
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | - Kayleigh R. Worek
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Keith P. Smith
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Paula Araya
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Katherine A. Waugh
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Current address: Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Ross E. Granrath
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Eleanor Britton
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Hannah R. Lyford
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Micah G. Donovan
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Neetha Paul Eduthan
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Amanda A. Hill
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Barry Martin
- Department of Internal Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kelly D. Sullivan
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pediatrics, Section of Developmental Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Lina Patel
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Psychiatry, Child and Adolescent Division, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Deborah J. Fidler
- Department of Human Development and Family Studies, Colorado State University, Fort Collins, CO, USA
| | - Matthew D. Galbraith
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Cory A. Dunnick
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - David A. Norris
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Joaquin M. Espinosa
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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Anaya JM, Lozada-Martinez ID, Torres I, Shoenfeld Y. Autoimmunity in centenarians. A paradox. J Transl Autoimmun 2024; 8:100237. [PMID: 38468861 PMCID: PMC10926223 DOI: 10.1016/j.jtauto.2024.100237] [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] [Received: 01/31/2024] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/13/2024] Open
Abstract
Autoimmune diseases (ADs) are one of the groups of chronic illnesses that impose a significant burden of disease and health costs worldwide. Age is a crucial risk factor for the onset of ADs. Theoretically, it is inferred that with organic and immune system aging, the loss of immune tolerance and specificity of immune activity becomes more intense, the probability of autoimmunity is increasing. However, there is a group of individuals whose prevalence of ADs is very low or non-existent, despite the biological aging. This paradox in autoimmunity raises questions. Centenarians, individuals who are over 100 years old, are possibly the most successful model of biological aging in humans. Most of these individuals exhibit a favorable health phenotype. To date, primary data evidence and potential hypotheses explaining this phenomenon are lacking globally, even though this paradox could provide valuable, original, and relevant information regarding the understanding of risk or protective factors, biological drivers, and biomarkers related to autoimmunity. Herein we discuss some hypothesis that may explain the absence of ADs in centenarians, including inflammaging, immunosenescence and immune resilience, immune system hyperstimulation, proteodynamics, and genetics.
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Affiliation(s)
- Juan-Manuel Anaya
- Health Research and Innovation Center at Coosalud EPS, Cartagena, 130001, Colombia
| | | | - Isaura Torres
- Medical Sciences Research Group, School of Life Sciences and Medicine, Universidad EIA, Envigado, Colombia
| | - Yehuda Shoenfeld
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer 5265601, Reichman University, Herzliya, Israel
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Banerjee A, Ranjan A, Kumar M, Kumar S, Bansal A, Mahto M. Antinuclear antibody (ANA) positivity pattern by line immunoassay in a hospital from eastern India: Update from a laboratory perspective. J Family Med Prim Care 2024; 13:1254-1261. [PMID: 38827670 PMCID: PMC11141993 DOI: 10.4103/jfmpc.jfmpc_1170_23] [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] [Received: 07/18/2023] [Revised: 09/05/2023] [Accepted: 09/21/2023] [Indexed: 06/04/2024] Open
Abstract
Context The existence of more than one antibody in systemic autoimmune rheumatic diseases (SARDs) or connective tissue disease (CTD) along with features of more than one autoimmune disease (AD) in an individual is suggestive of overlap syndrome (OS). Line immunoassay (LIA) can target many autoantibodies in a single approach, thus making the identification of OS feasible. Aims and Objectives This study aimed to identify the pattern of distribution of antinuclear antibodies by LIA prevalent in a hospital population in eastern India and identify common forms of SARD in this belt based on laboratory findings. Material and Methods A total of 1660 samples received for ANA profile testing by LIA were analysed. Statistical Analysis Factor analysis was performed with factor loading scores used in the k-means algorithm to identify clustering of various autoantibodies. Results U1-snRNP positivity was the highest at 16.69%, and the least frequent autoantibody noted was anti-Jo-1 at 0.71% positivity. Based on the outcome of factor analysis, three clusters were determined. Cluster 1 showed a predominance of anti-PM/Scl antibodies, cluster 2 showed a predominance of anti-dsDNA, anti-histone, anti-SmD1, anti-nucleosomes, anti-PCNA, anti-Po, anti-SSA/Ro52, anti-SSA-Ro60, anti-SSB/La, anti-Scl-70, anti-Mi-2, anti-Ku and anti-AMA-M2, and cluster 3 showed a predominance of anti-U1-snRNP. Conclusions Mixed connective tissue disease (MCTD) and overlap syndrome (OS) are prevalent more than pure form of an AD in our study population. OS may be missed out by monospecific immunoassays and hence adds to diagnostic challenges. LIA may be more useful in identifying specific autoantibodies by a single approach rather than monospecific immunoassays in populations after a positive screen by indirect immunofluorescence (IIF).
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Affiliation(s)
- Ayan Banerjee
- Department of Biochemistry, AIIMS Patna, Patna, Bihar, India
| | - Alok Ranjan
- Department of CFM, AIIMS Patna, Patna, Bihar, India
| | - Mukunda Kumar
- Department of Biochemistry, AIIMS Patna, Patna, Bihar, India
| | - Sushil Kumar
- Department of Biochemistry, AIIMS Patna, Patna, Bihar, India
| | - Akash Bansal
- Department of Biochemistry, AIIMS Patna, Patna, Bihar, India
| | - Mala Mahto
- Department of Biochemistry, AIIMS Patna, Patna, Bihar, India
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Ringer A, Smichowski AM, Gómez R, Virasoro B, Martínez L, Bertiller E, Siegrist C, Abdala B, Chulibert S, Grossi G, Rubín E, Kostianovsky A, Muñoz SA, Lutgen S, Gandino IJ. Ocular cicatricial pemphigoid: is there an association with autoimmune diseases? Int Ophthalmol 2024; 44:99. [PMID: 38376602 DOI: 10.1007/s10792-024-02939-8] [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: 03/03/2023] [Accepted: 12/17/2023] [Indexed: 02/21/2024]
Abstract
PURPOSE To assess the prevalence of autoimmune diseases (ADs) associated with ocular cicatricial pemphigoid (OCP) and analyze clinical, laboratory, and treatment associations between these entities. METHODS A multicentre cross-sectional study of patients with an OCP diagnosis. The population was divided into two groups according to their association with other ADs or not. Clinical, laboratory and treatment variables were described and compared between groups. A multivariable logistic regression analysis was performed to identify variables that could suggest the association between OCP and ADs. RESULTS Eighty-eight patients were recruited, with a mean age at diagnosis of 64.3 years (SD 11.9). Biopsy was performed in 86.8% of the patients. There was a median delay of 2 years from the onset of symptoms to diagnosis. Extraocular involvement was evidenced in 11.5%. The group associated with ADs included 24 patients (27.3%). The most prevalent diagnosis was Sjögren´s syndrome. Hypergammaglobulinemia was associated with ADs and OCP, adjusted for age, sex, smoking, skin and mucosal involvement, and erythrocyte sedimentation rate (OR 8.7; 95%CI 1.6-46.8; p = 0.012). CONCLUSIONS Due to OCP's autoimmune nature, it could coexist with other ADs. This study observed that more than a quarter of the population presented with this association, and hypergammaglobulinemia could suggest it.
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Affiliation(s)
- Ariana Ringer
- Rheumatology Unit, National University of Rosario, Hospital Provincial del Centenario, Rosario, Santa Fe, Argentina.
- Rheumatology and Internal Medicine Unit, Consultorios Médicos y Laboratorio de Análisis Bioquímicos e Inmunológicos (CM/LABI), Rosario, Santa Fe, Argentina.
| | - Andrea María Smichowski
- Rheumatology Unit, Hospital Militar Central, 601 Cirujano Mayor Doctor Cosme Argerich, Ciudad Autónoma de Buenos Aires, Argentina
| | - Ramiro Gómez
- Rheumatology Unit, Hospital Nacional Alejandro Posadas, El Palomar, Provincia de Buenos Aires, Argentina
| | - Belén Virasoro
- Consultorio de Enfermedades Autoinmunes (CEA), Ciudad Autónoma de Buenos Aires, Argentina
| | - Liliana Martínez
- Internal Medicine Unit, Hospital General de Agudos Juan Antonio Fernández, Ciudad Autónoma de Buenos Aires, Argentina
| | - Emmanuel Bertiller
- Internal Medicine Unit, Hospital General de Agudos Juan Antonio Fernández, Ciudad Autónoma de Buenos Aires, Argentina
| | - Carlos Siegrist
- Rheumatology and Internal Medicine Unit, Consultorios Médicos y Laboratorio de Análisis Bioquímicos e Inmunológicos (CM/LABI), Rosario, Santa Fe, Argentina
| | - Brian Abdala
- Rheumatology Unit, National University of Rosario, Hospital Provincial del Centenario, Rosario, Santa Fe, Argentina
| | - Serenela Chulibert
- Rheumatology Unit, National University of Rosario, Hospital Provincial del Centenario, Rosario, Santa Fe, Argentina
| | - German Grossi
- Ophtalmology Unit, Hospital Provincial del Centenario, Rosario, Provincia de Santa Fe, Argentina
| | - Eduardo Rubín
- Ophtalmology Unit, Hospital Provincial del Centenario, Rosario, Provincia de Santa Fe, Argentina
| | - Alex Kostianovsky
- Consultorio de Enfermedades Autoinmunes (CEA), Ciudad Autónoma de Buenos Aires, Argentina
| | - Sebastián Andrés Muñoz
- Consultorio de Enfermedades Autoinmunes (CEA), Ciudad Autónoma de Buenos Aires, Argentina
| | - Sophia Lutgen
- Department of Medicine, Mount Sinai Morningside and West, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ignacio Javier Gandino
- Internal Medicine Unit, Hospital General de Agudos Juan Antonio Fernández, Ciudad Autónoma de Buenos Aires, Argentina
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Guo CC, Xu HE, Ma X. ARID3a from the ARID family: structure, role in autoimmune diseases and drug discovery. Acta Pharmacol Sin 2023; 44:2139-2150. [PMID: 37488425 PMCID: PMC10618457 DOI: 10.1038/s41401-023-01134-2] [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: 03/13/2023] [Accepted: 07/09/2023] [Indexed: 07/26/2023] Open
Abstract
The AT-rich interaction domain (ARID) family of DNA-binding proteins is a group of transcription factors and chromatin regulators with a highly conserved ARID domain that recognizes specific AT-rich DNA sequences. Dysfunction of ARID family members has been implicated in various human diseases including cancers and intellectual disability. Among them, ARID3a has gained increasing attention due to its potential involvement in autoimmunity. In this article we provide an overview of the ARID family, focusing on the structure and biological functions of ARID3a. It explores the role of ARID3a in autoreactive B cells and its contribution to autoimmune diseases such as systemic lupus erythematosus and primary biliary cholangitis. Furthermore, we also discuss the potential for drug discovery targeting ARID3a and present a plan for future research in this field.
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Affiliation(s)
- Cheng-Cen Guo
- Department of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, 200001, China.
| | - H Eric Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
| | - Xiong Ma
- Department of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, 200001, China.
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Pineda-Sierra JS, Cifuentes-González C, Rojas-Carabali W, Muñoz-Vargas PT, Henao-Posada A, de-la-Torre A. Clinical characterization of patients with HLA-B27-associated uveitis and evaluation of the impact of systemic treatment on the recurrence rate: a cross-sectional study. J Ophthalmic Inflamm Infect 2023; 13:38. [PMID: 37646883 PMCID: PMC10468442 DOI: 10.1186/s12348-023-00352-3] [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: 11/02/2022] [Accepted: 05/27/2023] [Indexed: 09/01/2023] Open
Abstract
INTRODUCTION Despite HLA-B27-associated uveitis is one of the most frequent etiologies of uveitis worldwide, there are scarce studies on the clinical spectrum of this disease and the implications of therapeutic strategies used in the Latin-American population, with none conducted in Colombia. Thus, this study aimed to describe the clinical characteristics of a cohort of patients with positive HLA-B27-associated uveitis in Colombia and evaluate the impact of systemic treatment on the recurrence rate. METHODS We retrospectively reviewed 490 clinical charts of patients with uveitis, searching for those with positive HLA-B27-associated uveitis over eight years in a referral center in Bogotá, Colombia. We used descriptive statistics to summarize demographic and clinical characteristics and conducted a Chi-square test, Fisher Exact test, Spearman correlation, and Mann-Whitney test to assess associations between treatment strategies and the recurrences rate. RESULTS We analyzed 39 patients (59% females) with positive HLA-B27-associated uveitis, with a median age at the first consultation of 44.5 years (Range: 2-80) and a mean follow-up time of 86.4 weeks (1.65 years). Most patients had unilateral uveitis (53.8%) and an anterior anatomical diagnosis (76.6%); two had anterior chamber fibrinous reaction, and only one had hypopyon. Most patients did not show associated systemic symptoms (66.7%). Topical corticosteroids, NSAIDs, methotrexate, mydriatics, and adalimumab were the most used treatments. The most common complications included cataracts, posterior synechiae, and macular edema. We identified that the rate of recurrences decreases over time (r = -0.6361, P = 0.002571), and this decrease seems to be associated with the initiation of disease-modifying antirheumatic drugs (DMARDs) in chronic and recurrent cases. CONCLUSION The clinical spectrum of HLA-B27-associated uveitis in Colombian patients is distinct from other latitudes. Notably, we found a female predominance, older age at presentation, higher frequency of bilateral and vitreous involvement, and lower frequency of concomitant systemic diseases. Additionally, our results suggest that DMARDs such as methotrexate and biologic agents are good therapeutic options to avoid recurrences in chronic and recurrent cases.
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Affiliation(s)
- Juan Sebastián Pineda-Sierra
- Neuroscience (NEUROS) Research Group, Institute of Translational Medicine (IMT), Neurovitae Research Center, Escuela de Medicina Y Ciencias de La Salud, Universidad del Rosario, Carrera 24 # 63C - 69, Bogotá, Colombia
- Ophthalmology Interest Group, Neuroscience (NEUROS) Research Group, Institute of Translational Medicine (IMT), Neurovitae Research Center, Escuela de Medicina Y Ciencias de La Salud, Universidad del Rosario, Carrera 24 # 63C - 69, Bogotá, Colombia
| | - Carlos Cifuentes-González
- Neuroscience (NEUROS) Research Group, Institute of Translational Medicine (IMT), Neurovitae Research Center, Escuela de Medicina Y Ciencias de La Salud, Universidad del Rosario, Carrera 24 # 63C - 69, Bogotá, Colombia
| | - William Rojas-Carabali
- Neuroscience (NEUROS) Research Group, Institute of Translational Medicine (IMT), Neurovitae Research Center, Escuela de Medicina Y Ciencias de La Salud, Universidad del Rosario, Carrera 24 # 63C - 69, Bogotá, Colombia
| | - Paula Tatiana Muñoz-Vargas
- Neuroscience (NEUROS) Research Group, Institute of Translational Medicine (IMT), Neurovitae Research Center, Escuela de Medicina Y Ciencias de La Salud, Universidad del Rosario, Carrera 24 # 63C - 69, Bogotá, Colombia
| | - Alejandro Henao-Posada
- Neuroscience (NEUROS) Research Group, Institute of Translational Medicine (IMT), Neurovitae Research Center, Escuela de Medicina Y Ciencias de La Salud, Universidad del Rosario, Carrera 24 # 63C - 69, Bogotá, Colombia
| | - Alejandra de-la-Torre
- Neuroscience (NEUROS) Research Group, Institute of Translational Medicine (IMT), Neurovitae Research Center, Escuela de Medicina Y Ciencias de La Salud, Universidad del Rosario, Carrera 24 # 63C - 69, Bogotá, Colombia.
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Azevedo D, Rodrigues AM, Canhão H, Carvalho AM, Souto A. Zgli: A Pipeline for Clustering by Compression with Application to Patient Stratification in Spondyloarthritis. SENSORS (BASEL, SWITZERLAND) 2023; 23:1219. [PMID: 36772258 PMCID: PMC9920187 DOI: 10.3390/s23031219] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
The normalized compression distance (NCD) is a similarity measure between a pair of finite objects based on compression. Clustering methods usually use distances (e.g., Euclidean distance, Manhattan distance) to measure the similarity between objects. The NCD is yet another distance with particular characteristics that can be used to build the starting distance matrix for methods such as hierarchical clustering or K-medoids. In this work, we propose Zgli, a novel Python module that enables the user to compute the NCD between files inside a given folder. Inspired by the CompLearn Linux command line tool, this module iterates on it by providing new text file compressors, a new compression-by-column option for tabular data, such as CSV files, and an encoder for small files made up of categorical data. Our results demonstrate that compression by column can yield better results than previous methods in the literature when clustering tabular data. Additionally, the categorical encoder shows that it can augment categorical data, allowing the use of the NCD for new data types. One of the advantages is that using this new feature does not require knowledge or context of the data. Furthermore, the fact that the new proposed module is written in Python, one of the most popular programming languages for machine learning, potentiates its use by developers to tackle problems with a new approach based on compression. This pipeline was tested in clinical data and proved a promising computational strategy by providing patient stratification via clusters aiding in precision medicine.
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Affiliation(s)
- Diogo Azevedo
- LASIGE, Departamento de Informática da Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Ana Maria Rodrigues
- EpiDoC Unit, The Chronic Diseases Research Centre, NOVA Medical School, NOVA University of Lisbon, 1169-056 Lisboa, Portugal
- Comprehensive Health Research Center, NOVA Medical School, NOVA University of Lisbon, 1150-082 Lisboa, Portugal
| | - Helena Canhão
- EpiDoC Unit, The Chronic Diseases Research Centre, NOVA Medical School, NOVA University of Lisbon, 1169-056 Lisboa, Portugal
- Comprehensive Health Research Center, NOVA Medical School, NOVA University of Lisbon, 1150-082 Lisboa, Portugal
| | - Alexandra M. Carvalho
- Instituto de Telecomunicações, 1049-001 Lisboa, Portugal
- Department of Electrical and Computer Engineering, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
- Lisbon Unit for Learning and Intelligent Systems, 1049-001 Lisboa, Portugal
| | - André Souto
- LASIGE, Departamento de Informática da Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Instituto de Telecomunicações, 1049-001 Lisboa, Portugal
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9
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Harley ITW, Allison K, Scofield RH. Polygenic autoimmune disease risk alleles impacting B cell tolerance act in concert across shared molecular networks in mouse and in humans. Front Immunol 2022; 13:953439. [PMID: 36090990 PMCID: PMC9450536 DOI: 10.3389/fimmu.2022.953439] [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: 05/26/2022] [Accepted: 07/19/2022] [Indexed: 11/23/2022] Open
Abstract
Most B cells produced in the bone marrow have some level of autoreactivity. Despite efforts of central tolerance to eliminate these cells, many escape to periphery, where in healthy individuals, they are rendered functionally non-responsive to restimulation through their antigen receptor via a process termed anergy. Broad repertoire autoreactivity may reflect the chances of generating autoreactivity by stochastic use of germline immunoglobulin gene segments or active mechanisms may select autoreactive cells during egress to the naïve peripheral B cell pool. Likewise, it is unclear why in some individuals autoreactive B cell clones become activated and drive pathophysiologic changes in autoimmune diseases. Both of these remain central questions in the study of the immune system(s). In most individuals, autoimmune diseases arise from complex interplay of genetic risk factors and environmental influences. Advances in genome sequencing and increased statistical power from large autoimmune disease cohorts has led to identification of more than 200 autoimmune disease risk loci. It has been observed that autoantibodies are detectable in the serum years to decades prior to the diagnosis of autoimmune disease. Thus, current models hold that genetic defects in the pathways that control autoreactive B cell tolerance set genetic liability thresholds across multiple autoimmune diseases. Despite the fact these seminal concepts were developed in animal (especially murine) models of autoimmune disease, some perceive a disconnect between human risk alleles and those identified in murine models of autoimmune disease. Here, we synthesize the current state of the art in our understanding of human risk alleles in two prototypical autoimmune diseases – systemic lupus erythematosus (SLE) and type 1 diabetes (T1D) along with spontaneous murine disease models. We compare these risk networks to those reported in murine models of these diseases, focusing on pathways relevant to anergy and central tolerance. We highlight some differences between murine and human environmental and genetic factors that may impact autoimmune disease development and expression and may, in turn, explain some of this discrepancy. Finally, we show that there is substantial overlap between the molecular networks that define these disease states across species. Our synthesis and analysis of the current state of the field are consistent with the idea that the same molecular networks are perturbed in murine and human autoimmune disease. Based on these analyses, we anticipate that murine autoimmune disease models will continue to yield novel insights into how best to diagnose, prognose, prevent and treat human autoimmune diseases.
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Affiliation(s)
- Isaac T. W. Harley
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, United States
- Human Immunology and Immunotherapy Initiative (HI3), Department of Immunology, University of Colorado School of Medicine, Aurora, CO, United States
- Rheumatology Section, Medicine Service, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, United States
- *Correspondence: Isaac T. W. Harley,
| | - Kristen Allison
- Division of Rheumatology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, United States
- Human Immunology and Immunotherapy Initiative (HI3), Department of Immunology, University of Colorado School of Medicine, Aurora, CO, United States
| | - R. Hal Scofield
- Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Arthritis & Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
- Medical/Research Service, US Department of Veterans Affairs Medical Center, Oklahoma City, OK, United States
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10
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Cifuentes-González C, Uribe-Reina P, Reyes-Guanes J, Muñoz-Ortiz J, Muñoz-Vargas PT, Rojas-Carabali W, Nova-Florián DV, De-Los-Ríos AS, Mantilla-Hernández RD, de-la-Torre A. Ocular Manifestations Related to Antibodies Positivity and Inflammatory Biomarkers in a Rheumatological Cohort. Clin Ophthalmol 2022; 16:2477-2490. [PMID: 35971506 PMCID: PMC9375558 DOI: 10.2147/opth.s361243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/02/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Ocular involvement is frequent in autoimmune diseases and even can be the first manifestation. There are multiple descriptions in the literature around the world regarding this topic. However, we evidenced a lack of studies analyzing the relationship between the ocular manifestations and systemic biomarkers, especially in Latinamerica. Therefore, this study aimed to examine the relationship between the positivity of inflammatory biomarkers and the ocular manifestations in a Colombian cohort of rheumatological patients. Patients and Methods We conducted an observational, descriptive, non-comparative cross-sectional study in a rheumatology center, in Bogotá, Colombia, from 2013 to 2019. We calculated a sample size of 797 patients to assess the prevalence of ocular manifestations and inflammatory biomarkers. We performed univariate analyses for categorical and continuous variables and bivariate analyses using the Chi-square and Fisher’s exact test for categorical variables. Results Women represented 84% of the population, and the mean age was 54.61± 15.64 years. Of 797 patients, 21.45% reported one or more ophthalmological diagnoses, being keratoconjunctivitis sicca (KCS) the most common (15.93%), followed by uveitis, and cataract (1.38%, each one). Regarding ophthalmological symptoms, 35% presented at least one, being dry eye sensation (DE) the most common (30.86%), followed by ocular pain (2.76%), red eye, and decreased visual acuity (2.63%, each one). The antibodies or inflammatory biomarkers most frequently found were antinuclear antibodies (ANAs) (35.3%), C-reactive protein (28.7%), and rheumatoid factor (27.9%). We found statistical associations between consumption of complement 3, anti-CCP, anti-RO, and anti-LA antibodies with ocular manifestations such as photophobia, DE, conjunctivitis, KCS, uveitis, retinal vasculitis, and maculopathy. Conclusion Ocular manifestations are frequently found in patients with positive antibodies and inflammatory biomarkers. Our results suggest antibodies and inflammatory molecules could be biomarkers for ocular manifestations in patients with rheumatological diseases. This study provides the basis for future longitudinal studies.
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Affiliation(s)
- Carlos Cifuentes-González
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Pilar Uribe-Reina
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Juliana Reyes-Guanes
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Juliana Muñoz-Ortiz
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Paula Tatiana Muñoz-Vargas
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - William Rojas-Carabali
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Dora Victoria Nova-Florián
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Ana Sofía De-Los-Ríos
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | | | - Alejandra de-la-Torre
- Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
- Correspondence: Alejandra de-la-Torre, Neuroscience Research Group (NEUROS), Neurovitae Center, School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 # 63C 69, Bogotá, Colombia, Tel +2970200 ext. 3320, Email
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11
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Capriello S, Ferrari SM, Gatto I, Santaguida MG, Fallahi P, Antonelli A, Mangino G, Romeo G, Virili C, Centanni M. Regulatory B Cells in Systemic Sclerosis Isolated or Concomitant With Hashimoto Thyroiditis. Front Immunol 2022; 13:921260. [PMID: 35874691 PMCID: PMC9296862 DOI: 10.3389/fimmu.2022.921260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/03/2022] [Indexed: 11/13/2022] Open
Abstract
Systemic sclerosis (SSc) is a systemic autoimmune disease in which gastrointestinal disorders represent a complication in up to 90% of patients. SSc may associate with thyroid autoimmune disorders, with Hashimoto’s thyroiditis (HT) being the more prevalent worldwide. Previous studies have examined the behavior of Th17 lymphocytes and Breg cells in patients with HT and concomitant autoimmune organ-specific disorders. These immune phenotypes seem to play a significant role in the pathogenesis of both these autoimmune processes, but their behavior when these two disorders coexist has not been described. We analyzed Th17 and Breg (CD24hiCD38hi) cell subsets in 50 subjects (45F/5M; median age = 49 years): 18 were healthy donors (HD), 20 had isolated HT, and 12 had SSc, seven of whom had both HT and SSc. Breg cells’ function was also evaluated by measuring their IL-10 production when stimulated by specific activators. An increased percentage of Th17 lymphocytes characterized HT patients as compared to both HD and the whole group of SSc patients (p = 0.0018). On the contrary, the percentage of unstimulated Breg cells in SSc patients was higher (p = 0.0260), either associated or not with HT, as compared to both HT patients and HD, which, instead, showed a similar percentage of Breg cells. Following a specific stimulation with CpG, the percentages of Breg cells were increased in the whole sample of SSc patients (p < 0.001) as well as in isolated SSc and in SSc+HT ones as compared to isolated HT. However, qualitative analysis, obtained through the detection of the IL-10-producing phenotype, revealed that the percentage of CpG-stimulated CD24hiCD38hi-IL10+cells was significantly decreased in SSc patients (p < 0.0001) with no difference between isolated SSc and SSc+HT patients. The IL-10-producing phenotype was instead slightly increased in HT patients as compared to HD (4.1% vs. 2.8%). The presence of SSc seems to be characterized by an enrichment of total Breg cells but by a reduced Breg IL-10-producing phenotype, representing functional Bregs. This last finding was entirely due to the presence of SSc independently from the association with HT. This behavior is different from the ones described about the association of HT with organ-specific autoimmune disorders.
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Affiliation(s)
- Silvia Capriello
- Department of Medico-surgical Sciences and Biotechnologies, Endocrinology Section, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | | | - Ilenia Gatto
- Department of Medico-surgical Sciences and Biotechnologies, Endocrinology Section, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | | | - Poupak Fallahi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Alessandro Antonelli
- Department of Surgical, Medical and Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
| | - Giorgio Mangino
- Department of Medico-surgical Sciences and Biotechnologies, Immunology Section, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - Giovanna Romeo
- Department of Medico-surgical Sciences and Biotechnologies, Immunology Section, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - Camilla Virili
- Department of Medico-surgical Sciences and Biotechnologies, Endocrinology Section, ‘‘Sapienza’’ University of Rome, Latina, Italy
| | - Marco Centanni
- Department of Medico-surgical Sciences and Biotechnologies, Endocrinology Section, ‘‘Sapienza’’ University of Rome, Latina, Italy
- Endocrine Unit, Azienda Unità Sanitaria Locale (AUSL) Latina, Latina, Italy
- *Correspondence: Marco Centanni,
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13
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García-Bravo L, Calle-Rubio M, Fernández-Arquero M, Mohamed Mohamed K, Guerra-Galán T, Guzmán-Fulgencio M, Rodríguez de la Peña A, Cañizares C, López B, Vadillo C, Matías-Guiu J, Nieto Barbero A, Álvarez-Sala Walther JL, Sánchez-Ramón S, Ochoa-Grullón J. Association of anti-SARS-COV-2 vaccine with increased incidence of myositis-related anti-RNA-synthetases auto-antibodies. J Transl Autoimmun 2022; 5:100160. [PMID: 35789569 PMCID: PMC9242685 DOI: 10.1016/j.jtauto.2022.100160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/08/2022] [Accepted: 06/18/2022] [Indexed: 01/06/2023] Open
Abstract
Introduction SARS-CoV-2 is a RNA virus that associates with heterogeneous clinical manifestations and complications. Auto-antibodies are identified in approximately 50% of hospitalized COVID-19 patients. Objectives To determine the global incidence of myositis-related auto-antibodies (non Jo1-RNA synthetases: anti-PL7, anti-PL12, anti-EJ, anti-OJ and RNA-sensor: anti-MDA5) in our laboratory during COVID-19 pandemics, and to describe the clinical and laboratory features of these patients. Study design A retrospective study was performed from 2015 to 2021 in a cohort of 444 patients with suspected inflammatory myopathy. The incidence of positive results for the MSA was expressed as absolute value per year for the reference population. Immunoblot analysis, indirect immunofluorescence and HLA typing of 36 patients with positivity for MSAs were collected and analyzed. Results We observed MSA positive in 28 patients in 2020 and 36 patients in 2021, representing a mean increase of 6-fold respect to previous years since 2015 (range, 0 to 19). In 2020, the most common antibody detected was anti-MDA5 (68%). In contrast, in 2021 the most common antibodies were anti-PL7 and/or anti-PL12 (69%). All patients in 2021 with positive anti-synthetases were fully vaccinated, 4 had previous documented infection, with median time from vaccine to MSA positivity of 5 months. Eight out of 36 patients (22%) reported clinical onset after SARS-CoV-2 vaccination and 6 out of 36 (17%) presented clinical and/or radiological worsening after SARS-CoV-2 vaccination. All patients presented with a known human leukocyte antigen (HLA)-DRB1* allele associated with ASS. The most prevalent alleles identified were DRB1*03:01, DRB1*04, DRB1*11:01, corresponding to 70% (16/23) of our cohort. Conclusions Our preliminary data show an increased incidence of anti-synthetase antibodies during COVID-19 pandemic and SARS-CoV-2 vaccination associated to HLA DRB1* risk allele. Differential profiles of MSA specificities were observed: mainly against RNA-sensors in 2020 and against RNA-synthetases in 2021. Further studies are needed to support the association between SARS-CoV-2 infection and/or vaccination and the occurrence of this autoimmune syndrome.
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14
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Rojas M, Ramírez-Santana C, Acosta-Ampudia Y, Monsalve DM, Rodriguez-Jimenez M, Zapata E, Naranjo-Pulido A, Suárez-Avellaneda A, Ríos-Serna LJ, Prieto C, Zambrano-Romero W, Valero MA, Rodríguez Y, Mantilla RD, Zhu C, Li QZ, Toro-Gutiérrez CE, Tobón GJ, Anaya JM. New insights into the taxonomy of autoimmune diseases based on polyautoimmunity. J Autoimmun 2021; 126:102780. [PMID: 34923432 DOI: 10.1016/j.jaut.2021.102780] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/05/2021] [Accepted: 12/10/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The clinical coexistence of two or more autoimmune diseases (ADs) fulfilling classification criteria is termed "overt polyautoimmunity" (PolyA), whereas the presence of autoantibodies unrelated to an index AD, without clinical criteria fulfillment, is known as "latent PolyA". We aimed to explore a new taxonomy of ADs based on PolyA. METHODS In a cross-sectional study of 292 subjects, we evaluated the presence of PolyA in 146, 45, 29, 17, and 17 patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), Sjögren's syndrome (SS), autoimmune thyroid disease (AITD) and systemic sclerosis (SSc), respectively, and 38 healthy controls. Clinical assessment, autoantibody profile (by autoantigen array chip), lymphocytes immunophenotype and cytokine profile (by flow cytometry) were evaluated simultaneously. A mixed cluster methodology was used to classify ADs. RESULTS Latent PolyA was more frequent than overt PolyA, ranging from 69.9% in RA to 100% in SSc. Nevertheless, both latent and overt PolyA clustered together. Over-expressed IgG autoantibodies were found to be hallmarks for the identification of index ADs. The combination of autoantibodies allowed high accuracy in the classification of ADs. Three well-defined clusters based on PolyA were observed with distinctive clinical and immunological phenotypes. CONCLUSIONS This proof-of-concept study indicates that ADs can be classified according to PolyA. PolyA should be considered in all studies dealing with ADs, including epidemiological, genetic, and clinical trials.
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Affiliation(s)
- Manuel Rojas
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Carolina Ramírez-Santana
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Yeny Acosta-Ampudia
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Diana M Monsalve
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Mónica Rodriguez-Jimenez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Elizabeth Zapata
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Angie Naranjo-Pulido
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Ana Suárez-Avellaneda
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia; Centro de Referencia en Osteoporosis, Reumatología & Dermatología, Cali, Colombia
| | - Lady J Ríos-Serna
- Centro de Investigación en Reumatología, Autoinmunidad y Medicina Traslacional (CIRAT), Universidad ICESI, Cali, Colombia
| | - Carolina Prieto
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - William Zambrano-Romero
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - María Alejandra Valero
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Yhojan Rodríguez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Rubén D Mantilla
- Dermatology and Rheumatology Foundation (FUNINDERMA), Bogota, Colombia
| | - Chengsong Zhu
- Department of Immunology, Microarray & Immune Phenotyping Core Facility, University of Texas Southwestern Medical Center, Dallas, USA
| | - Quan-Zhen Li
- Department of Immunology, Microarray & Immune Phenotyping Core Facility, University of Texas Southwestern Medical Center, Dallas, USA
| | | | - Gabriel J Tobón
- Centro de Investigación en Reumatología, Autoinmunidad y Medicina Traslacional (CIRAT), Universidad ICESI, Cali, Colombia
| | - Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia; Clinica del Occidente, Bogota, Colombia.
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15
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Abstract
Based on the PubMed data, we have been performing a yearly evaluation of the publications related to autoimmune diseases and immunology to ascertain the relative weight of the former in the scientific literature. It is particularly intriguing to observe that despite the numerous new avenues of immune-related mechanisms, such as cancer immunotherapy, the proportion of immunology manuscripts related to autoimmunity continues to increase and has been approaching 20% in 2019. As in the previous 13 years, we performed an arbitrary selection of the peer-reviewed articles published by the major dedicated Journals and discussed the common themes which continue to outnumber peculiarites in autoimmune diseases. The investigated areas included systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), psoriatic arthritis (PsA), autoantibodies (autoAbs), and common therapeutic avenues and novel pathogenic mechanisms for autoimmune conditions. Some examples include new pathogenetic evidence which is well represented by IL21 or P2X7 receptor (P2X7R) in SLE or the application of single-cell RNA sequencing (scRNA-seq), mass cytometry, bulk RNA sequencing (RNA-seq), and flow cytometry for the analysis of different cellular populations in RA. Cumulatively and of interest to the clinicians, a large number of findings continue to underline the importance of a strict relationship between basic and clinical science to define new pathogenetic and therapeutic developments. The therapeutic pipeline in autoimmunity continues to grow and maintain a constant flow of new molecules, as well illustrated in RA and PsA, and this is most certainly derived from the new basic evidence and the high-throughput tools applied to autoimmune diseases.
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16
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Hosseinikhah SM, Barani M, Rahdar A, Madry H, Arshad R, Mohammadzadeh V, Cucchiarini M. Nanomaterials for the Diagnosis and Treatment of Inflammatory Arthritis. Int J Mol Sci 2021; 22:3092. [PMID: 33803502 PMCID: PMC8002885 DOI: 10.3390/ijms22063092] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/04/2021] [Accepted: 03/16/2021] [Indexed: 12/12/2022] Open
Abstract
Nanomaterials have received increasing attention due to their unique chemical and physical properties for the treatment of rheumatoid arthritis (RA), the most common complex multifactorial joint-associated autoimmune inflammatory disorder. RA is characterized by an inflammation of the synovium with increased production of proinflammatory cytokines (IL-1, IL-6, IL-8, and IL-10) and by the destruction of the articular cartilage and bone, and it is associated with the development of cardiovascular disorders such as heart attack and stroke. While a number of imaging tools allow for the monitoring and diagnosis of inflammatory arthritis, and despite ongoing work to enhance their sensitivity and precision, the proper assessment of RA remains difficult particularly in the early stages of the disease. Our goal here is to describe the benefits of applying various nanomaterials as next-generation RA imaging and detection tools using contrast agents and nanosensors and as improved drug delivery systems for the effective treatment of the disease.
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Affiliation(s)
- Seyedeh Maryam Hosseinikhah
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad 91886-17871, Iran;
| | - Mahmood Barani
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 761691411, Iran;
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Zabol 538-9861, Iran
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, D-66421 Homburg/Saar, Germany;
| | - Rabia Arshad
- Department of Pharmacy, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Vahideh Mohammadzadeh
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Science, Mashhad 91886-17871, Iran;
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, D-66421 Homburg/Saar, Germany;
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Anaya JM, Monsalve DM, Rojas M, Rodríguez Y, Montoya-García N, Mancera-Navarro LM, Villadiego-Santana AM, Rodríguez-Leguizamón G, Acosta-Ampudia Y, Ramírez-Santana C. Latent rheumatic, thyroid and phospholipid autoimmunity in hospitalized patients with COVID-19. J Transl Autoimmun 2021; 4:100091. [PMID: 33681751 PMCID: PMC7920824 DOI: 10.1016/j.jtauto.2021.100091] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 02/21/2021] [Indexed: 12/16/2022] Open
Abstract
Autoimmune responses mediated by autoantibodies have been observed in SARS-CoV-2 infection. Herein, we evaluate the presence of rheumatic, thyroid and phospholipid autoantibodies in sera samples from 120 adult hospitalized patients with COVID-19 in comparison to pre-pandemic samples from 100 healthy individuals. In addition, to estimate the frequency of these autoantibodies in COVID-19, a meta-analysis of selected articles was conducted. Hospitalized patients with COVID-19 had latent autoimmunity characterized by a high frequency of anti-thyroid peroxidase antibodies, rheumatoid factor (RF), anti-cyclic citrullinated peptide third generation antibodies, antinuclear antibodies (ANAs), IgM anti-β2-glycoprotein I (β2GP1) and IgM anti-cardiolipin antibodies. The meta-analysis confirmed our results, with RF and ANAs being the most common autoantibodies. In addition, cluster analysis revealed that those patients with high frequency of RF, IgM anti-β2GP1 antibodies and ANAs had a longer hospital stay, required more vasopressors during hospitalization, and were more likely to develop critical disease. These data suggest that latent autoimmunity influences the severity of COVID-19, and support further post-COVID studies in order to evaluate the development of overt autoimmunity.
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Affiliation(s)
- Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Diana M. Monsalve
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Manuel Rojas
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Yhojan Rodríguez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
- Clínica del Occidente, Bogota, Colombia
| | | | | | | | - Giovanni Rodríguez-Leguizamón
- Hospital Universitario Mayor – Méderi, Universidad del Rosario, Bogota, Colombia
- School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Yeny Acosta-Ampudia
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Carolina Ramírez-Santana
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
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Vagts C, Ascoli C, Fraidenburg DR, Baughman RP, Huang Y, Edafetanure-Ibeh R, Ahmed S, Levin B, Lu Y, Perkins DL, Finn PW, Sweiss NJ. Unsupervised Clustering Reveals Sarcoidosis Phenotypes Marked by a Reduction in Lymphocytes Relate to Increased Inflammatory Activity on 18FDG-PET/CT. Front Med (Lausanne) 2021; 8:595077. [PMID: 33718397 PMCID: PMC7943443 DOI: 10.3389/fmed.2021.595077] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 01/22/2021] [Indexed: 11/23/2022] Open
Abstract
Introduction: Sarcoidosis is a T-helper cell mediated disease characterized by granulomatous inflammation. We posited that unsupervised clustering of various features in sarcoidosis would establish phenotypes associated with inflammatory activity measured by 18FDG-PET/CT. Our goal was to identify unique features capable of distinguishing clusters and subsequently examine the relationship with FDG avidity to substantiate their potential use as markers for sarcoidosis inflammation. Methods: We performed a retrospective study of a diverse, but primarily African American, cohort of 58 subjects with biopsy proven sarcoidosis followed at the University of Illinois Bernie Mac Sarcoidosis Center and Center for Lung Health who underwent 18FDG-PET/CT scan. Demographic, therapeutic, radiographic, and laboratory data were utilized in unsupervised cluster analysis to identify sarcoidosis phenotypes. The association between clusters, their defining features, and quantitative measurements on 18FDG-PET/CT was determined. The relevance of these features as markers of 18FDG-PET/CT inflammatory activity was also investigated. Results: Clustering determined three distinct phenotypes: (1) a predominantly African American cluster with chronic, quiescent disease, (2) a predominantly African American cluster with elevated conventional inflammatory markers, advanced pulmonary disease and extrathoracic involvement, and (3) a predominantly Caucasian cluster characterized by reduced lymphocyte counts and acute disease. In contrast to the chronic quiescent cluster, Clusters 2 and 3 were defined by significantly greater FDG avidity on 18FDG-PET/CT. Despite similarly increased inflammatory activity on 18FDG-PET/CT, Clusters 2, and 3 differed with regards to extrathoracic FDG avidity and circulating lymphocyte profiles, specifically CD4+ T-cells. Notably, absolute lymphocyte counts and CD4+ T-cell counts were found to predict 18FDG-PET/CT inflammatory activity by receiver operating curve analysis with a 69.2 and 73.42% area under the curve, respectively. Conclusions: Utilizing cluster analysis, three distinct phenotypes of sarcoidosis were identified with significant variation in race, disease chronicity, and serologic markers of inflammation. These phenotypes displayed varying levels of circulating inflammatory cells. Additionally, reduction in lymphocytes, specifically CD4+ T-cells, was significantly related to activity on 18FDG-PET/CT. Though future studies are warranted, these findings suggest that peripheral lymphocyte counts may be considered a determinant of sarcoidosis phenotypes and an indicator of active inflammation on 18FDG-PET/CT.
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Affiliation(s)
- Christen Vagts
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Christian Ascoli
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Dustin R Fraidenburg
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Robert P Baughman
- Department of Internal Medicine, University of Cincinnati Medical Center, Cincinnati, OH, United States
| | - Yue Huang
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Russell Edafetanure-Ibeh
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Samreen Ahmed
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Benjamin Levin
- Division of Cardiology, Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States.,Jesse Brown VA Medical Center, Chicago, IL, United States
| | - Yang Lu
- Division of Diagnostic Imaging, Department of Nuclear Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - David L Perkins
- Division of Nephrology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Patricia W Finn
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Nadera J Sweiss
- Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States.,Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
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Anaparti V, Smolik I, Meng X, O'Neil L, Jantz MA, Fritzler MJ, El-Gabalawy H. Expansion of Alternative Autoantibodies Does Not Follow the Evolution of Anti-Citrullinated Protein Antibodies in Preclinical Rheumatoid Arthritis: An Analysis in At-Risk First Degree Relatives. Arthritis Rheumatol 2021; 73:740-749. [PMID: 33538122 DOI: 10.1002/art.41675] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 01/28/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Co-occurrence of autoantibodies specific for ≥1 autoimmune disease is widely prevalent in rheumatoid arthritis (RA) patients. To understand the prevalence of polyautoimmunity in preclinical RA, we performed a comprehensive autoantibody assessment in a First Nations cohort of at-risk first-degree relatives (FDR) of RA patients, a subset of whom subsequently developed RA (progressors). METHODS Venous blood was collected from all study participants (n = 50 RA patients and 64 FDR) at scheduled visits, and serum was stored at -20°C. High-sensitivity C-reactive protein level, anti-citrullinated protein antibody (ACPA) status, and autoantibody status were determined using commercially available enzyme-linked immunosorbent assay kits. Rheumatoid factor (RF) was detected by nephelometry. Antinuclear autoantibodies (ANA) were identified using Hep-2 indirect immunofluorescence assay (IFA) and classified according to international consensus nomenclature as various anti-cell (AC) patterns. RESULTS Of our study cohort, 78.9% had positive ANA reactivity (≥1:80), which was either a homogenous, fine-speckled (AC-1 and AC-4) or mixed IFA pattern. Importantly, the AC-4 and mixed ANA patterns were also observed in progressors at the time of disease onset. While all of the RA patients showed a high prevalence of arthritis-associated autoantibodies, they also had a high prevalence of extractable nuclear antigen-positive autoantibodies to other autoantigens. In FDR, we did not observe any increase in serum autoreactivity to nonarthritis autoantigens, either cross-sectionally or in samples collected longitudinally from progressors prior to RA onset. CONCLUSION While alternative autoimmunity and ANA positivity are widely prevalent in First Nations populations, including asymptomatic, seronegative FDR, expansion of alternative autoimmunity does not occur in parallel with ACPA expansion in FDR and is restricted to patients with established RA.
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Affiliation(s)
| | - Irene Smolik
- University of Manitoba, Winnipeg, Manitoba, Canada
| | - Xiaobo Meng
- University of Manitoba, Winnipeg, Manitoba, Canada
| | - Liam O'Neil
- University of Manitoba, Winnipeg, Manitoba, Canada
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20
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Silverman GJ. Could Compensatory Autoantibody Production Affect Rheumatoid Arthritis Etiopathogenesis? Arthritis Rheumatol 2021; 73:728-730. [PMID: 33538128 DOI: 10.1002/art.41673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/28/2021] [Indexed: 11/10/2022]
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21
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Tozzoli R, Bizzaro N. The clinical and the laboratory autoimmunologist: Where do we stand? AUTO- IMMUNITY HIGHLIGHTS 2020; 11:10. [PMID: 32670534 PMCID: PMC7341566 DOI: 10.1186/s13317-020-00133-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Renato Tozzoli
- Laboratorio di Patologia Clinica, Ospedale San Antonio, Tolmezzo, Italy
- Azienda Sanitaria Universitaria Integrata di Udine, Udine, Italy
| | - Nicola Bizzaro
- Dipartimento di Medicina di Laboratorio, Presidio Ospedaliero S. Maria degli Angeli, Pordenone, Italy
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Botello A, Herrán M, Salcedo V, Rodríguez Y, Anaya JM, Rojas M. Prevalence of latent and overt polyautoimmunity in autoimmune thyroid disease: A systematic review and meta-analysis. Clin Endocrinol (Oxf) 2020; 93:375-389. [PMID: 32738825 DOI: 10.1111/cen.14304] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Thyroid autoimmunity is the most frequent condition involved in polyautoimmunity (PolyA). However, the frequency of latent and overt PolyA in patients with autoimmune thyroid disease (AITD) as the index condition is unknown. Therefore, the purpose of this study was to determine the prevalence of these types of PolyA in patients with AITD as the index condition. METHODS This study adhered to the relevant sections of the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guideline. Searches through MEDLINE, Embase and LILACS were done to find articles in Spanish and English. Relevant vocabulary terms and key terms related to AITD and other autoimmune diseases were used. Two investigators independently screened the eligible studies, extracted data and assessed the quality and risk of bias. Fixed and random effect models were used accordingly. Cluster analysis was used to determine similarities among diseases in the articles included (based on Jaccard index). RESULTS A total of 56 articles fulfilled the inclusion criteria. Of these, 25 were case-controls, 17 were cohorts, and 14 were cross-sectional studies. These studies included a total of 47 509 patients. Female was the predominant gender and included 38 950 patients (81.23%, 95% CI: 80.85-81.60). Graves' disease (GD) was the most common type of thyroid autoimmunity (69.16%, 95% CI: 68.23-70.07). Globally, overt PolyA was found in 13.46% of the patients with AITD. This type of PolyA was represented mainly by type 1 diabetes and autoimmune gastritis. Latent PolyA was presented in 17.45% of the patients, and anti-proinsulin, anti-parietal cells and dsDNA antibodies were the most common. HT had the highest frequency of overt PolyA in Europe (15.60%, 95% CI: 14.72-16.53), whereas latent PolyA was most common in patients with GD in Asia (21.03%, 95% CI: 17.76-24.71). Overt and latent PolyA were associated with gastrointestinal and endocrinological ADs in most of cases and clustered with rheumatological, dermatological and neurological ADs. CONCLUSIONS Latent and overt PolyA are common in patients with AITD. These results provide insightful information for early diagnosis and management of concurrent ADs in patients with AITD. Aggregation of ADs in different clusters may help to define different phenotypes associated with thyroid autoimmunity that are critically relevant in clinical settings.
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Affiliation(s)
- Alejandro Botello
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - María Herrán
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Valentina Salcedo
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Yhojan Rodríguez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Manuel Rojas
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
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The basics of data, big data, and machine learning in clinical practice. Clin Rheumatol 2020; 40:11-23. [PMID: 32504192 DOI: 10.1007/s10067-020-05196-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/05/2020] [Accepted: 05/20/2020] [Indexed: 12/29/2022]
Abstract
Health informatics and biomedical computing have introduced the use of computer methods to analyze clinical information and provide tools to assist clinicians during the diagnosis and treatment of diverse clinical conditions. With the amount of information that can be obtained in the healthcare setting, new methods to acquire, organize, and analyze the data are being developed each day, including new applications in the world of big data and machine learning. In this review, first we present the most basic concepts in data science, including the structural hierarchy of information and how it is managed. A section is dedicated to discussing topics relevant to the acquisition of data, importantly the availability and use of online resources such as survey software and cloud computing services. Along with digital datasets, these tools make it possible to create more diverse models and facilitate collaboration. After, we describe concepts and techniques in machine learning used to process and analyze health data, especially those most widely applied in rheumatology. Overall, the objective of this review is to aid in the comprehension of how data science is used in health, with a special emphasis on the relevance to the field of rheumatology. It provides clinicians with basic tools on how to approach and understand new trends in health informatics analysis currently being used in rheumatology practice. If clinicians understand the potential use and limitations of health informatics, this will facilitate interdisciplinary conversations and continued projects relating to data, big data, and machine learning.
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Kridin K, Tzur Bitan D, Comaneshter D, Cohen AD. The prevalence of systemic sclerosis is increased among patients with alopecia areata: a population-based study. Immunol Res 2019; 67:368-372. [PMID: 31741238 DOI: 10.1007/s12026-019-09104-9] [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] [Indexed: 11/26/2022]
Abstract
Although the coexistence of alopecia areata (AA) and systemic sclerosis (SSc) has been anecdotally reported, the association between these conditions has been poorly investigated. We aimed to assess the association between AA and SSc using a large-scale real-life computerized database. A cross-sectional study was conducted comparing the prevalence of SSc among patients with AA and among age-, sex-, and ethnicity-matched control subjects. Chi-square and t tests were used for univariate analysis, and logistic regression model was used for multivariate analysis. The study was performed utilizing the computerized database of Clalit Health Services ensuring 4.4 million subjects. A total of 51,561 patients with AA and 51,410 controls were included in the study. The prevalence of SSc was increased in patients with AA as compared with the control group (0.1% vs. 0.0%, respectively; OR, 2.30; 95% CI, 1.2-4.4; P = 0.010). The association was stronger among older and Jewish patients. In a multivariate analysis adjusting for sex, age, ethnicity, and other comorbidities, AA was still independently associated with SSc (OR, 2.3; 95% CI, 1.2-4.4; P = 0.012). In conclusion, a significant positive association was revealed between AA and SSc. Further studies are necessary to establish these findings in other study populations and to elucidate the mechanism underlying this association. Awareness of SSc may be of importance for physicians treating patients with AA, and screening for SSc in patients with relevant symptoms may be considered.
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Affiliation(s)
- Khalaf Kridin
- Department of Dermatology, Rambam Health Care Campus, POB 9602, 31096, Haifa, Israel.
| | - Dana Tzur Bitan
- Department of Behavioral Sciences, Ariel University, Ariel, Israel
| | - Doron Comaneshter
- Siaal Research Center for Family Medicine and Primary Care, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Arnon D Cohen
- Siaal Research Center for Family Medicine and Primary Care, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Department of Quality Measurements and Research, Chief Physician's Office, Clalit Health Services, Tel Aviv, Israel
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Immune Thrombocytopenia in an Adolescent with Hashimoto’s Thyroiditis – Case Report. JOURNAL OF INTERDISCIPLINARY MEDICINE 2019. [DOI: 10.2478/jim-2019-0018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Abstract
Introduction: In childhood, thrombocytopenia caused by transient antibody-mediated thrombocyte destruction is most frequently diagnosed as immune thrombocytopenic purpura (ITP). We report the case of a girl with ITP associated with autoimmune thyroiditis.
Case presentation: A 11-year-old female patient with Hashimoto’s thyroiditis presented with clinical signs of petechiae and ecchymoses on the extremities. Laboratory tests showed remarkable thrombocytopenia with a platelet count of 44,500/μL, hence she was referred to a hematologic consultation. The peripheral blood smear showed normal size platelets in very low range. The bone marrow examination exposed hyperplasia of the megakaryocyte series with outwardly morphologic abnormalities. The patient was diagnosed with ITP, and her first-line treatment was pulsed steroid and immunoglobulin therapy. The thrombocytopenia was refractory to these first-line medications. After 6 months of corticotherapy and a period of severe menorrhagia, azathioprine immunosupression was initiated as a second-line treatment. Her platelet count rapidly increased, and the evolution was good, without bleeding complications.
Conclusion: In case of a medical history of autoimmune diseases and treatment-resistant ITP, attention must be focused on detecting coexisting autoimmune diseases and adjusting the treatment in accordance with the chronic evolution of the disease.
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Abstract
Systemic lupus erythematosus (SLE) is a devastating and heterogeneous autoimmune disease that affects multiple organs, and for which the underlying causes are unknown. The majority of SLE patients produce autoantibodies, have increased levels of type-I inflammatory cytokines, and can develop glomerulonephritis. Recent studies indicate an unexpected but strong association between increased disease activity in SLE patients and the expression of the DNA-binding protein ARID3a (A + T rich interaction domain protein 3a) in a number of peripheral blood cell types. ARID3a expression was first associated with autoantibody production in B cells; however, more recent findings also indicate associations with expression of the inflammatory cytokine interferon alpha in SLE plasmacytoid dendritic cells and low-density neutrophils. In addition, ARID3a is expressed in hematopoietic stem cells and some adult kidney progenitor cells. SLE cells expressing enhanced ARID3a levels show differential gene expression patterns compared with homologous healthy control cells, identifying new pathways potentially regulated by ARID3a. The associations of ARID3a expression with increased disease severity in SLE, suggest that it, or its downstream targets, may provide new therapeutic targets for SLE.
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James JA, Chen H, Young KA, Bemis EA, Seifert J, Bourn RL, Deane KD, Demoruelle MK, Feser M, O'Dell JR, Weisman MH, Keating RM, Gaffney PM, Kelly JA, Langefeld CD, Harley JB, Robinson W, Hafler DA, O'Connor KC, Buckner J, Guthridge JM, Norris JM, Holers VM. Latent autoimmunity across disease-specific boundaries in at-risk first-degree relatives of SLE and RA patients. EBioMedicine 2019; 42:76-85. [PMID: 30952617 PMCID: PMC6491794 DOI: 10.1016/j.ebiom.2019.03.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/15/2019] [Accepted: 03/21/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Autoimmune disease prevention requires tools to assess an individual's risk of developing a specific disease. One tool is disease-associated autoantibodies, which accumulate in an asymptomatic preclinical period. However, patients sometimes exhibit autoantibodies associated with a different disease classification. When and how these alternative autoantibodies first appear remain unknown. This cross-sectional study characterizes alternative autoimmunity, and associated genetic and environmental factors, in unaffected first-degree relatives (FDRs) of patients, who exhibit increased future risk for the same disease. METHODS Samples (n = 1321) from disease-specific autoantibody-positive (aAb+) systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and type 1 diabetes (T1D) patients; and unaffected aAb+ and autoantibody-negative (aAb-) SLE and RA FDRs were tested for SLE, RA, and T1D aAbs, as well as anti-tissue transglutaminase, anti-cardiolipin and anti-thyroperoxidase. FDR SLE and RA genetic risk scores (GRS) were calculated. FINDINGS Alternative autoimmunity occurred in SLE patients (56%) and FDRs (57·4%), RA patients (32·6%) and FDRs (34·8%), and T1D patients (43%). Expanded autoimmunity, defined as autoantibodies spanning at least two other diseases, occurred in 18·5% of SLE patients, 16·4% of SLE FDRs, 7·8% of RA patients, 5·3% of RA FDRs, and 10·8% of T1D patients. SLE FDRs were more likely to have alternative (odds ratio [OR] 2·44) and expanded (OR 3·27) autoimmunity than RA FDRs. Alternative and expanded autoimmunity were associated with several environmental exposures. Alternative autoimmunity was associated with a higher RA GRS in RA FDRs (OR 1·41), and a higher SLE GRS in aAb+ RA FDRs (OR 1·87), but not in SLE FDRs. INTERPRETATION Autoimmunity commonly crosses disease-specific boundaries in systemic (RA, SLE) and organ-specific (T1D) autoimmune diseases. Alternative autoimmunity is more common in SLE FDRs than RA FDRs, and is influenced by genetic and environmental factors. These findings have substantial implications for preclinical disease pathogenesis and autoimmune disease prevention studies. FUND: NIH U01AI101981, R01AR051394, U19AI082714, P30AR053483, P30GM103510, U54GM104938, U01AI101934, R01AI024717, U01AI130830, I01BX001834, & U01HG008666.
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Affiliation(s)
- Judith A James
- Oklahoma Medical Research Foundation, Oklahoma City, OK, USA; University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
| | - Hua Chen
- Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | | | | | | | - Rebecka L Bourn
- Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | | | | | | | | | | | | | | | | | | | - John B Harley
- Cincinnati Children's Hospital Medical Center, The University of Cincinnati College of Medicine, and Cincinnati US Department of Veterans Affairs VA Medical Center, Cincinnati, OH, USA
| | | | | | | | - Jane Buckner
- Benaroya Research Institute at Virginia Mason, Seattle, Washington, USA
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