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Cepon-Robins TJ. Measuring attack on self: The need for field-friendly methods development and research on autoimmunity in human biology. Am J Hum Biol 2020; 33. [PMID: 33289250 DOI: 10.1002/ajhb.23544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Autoimmune and inflammatory disorder (AIID) prevalence appears to be increasing in all but the world's poorest regions and countries. Autoimmune diseases occur when there is a breakdown in processes that regulate inflammation and self-recognition by immune cells. Very few field-based studies have been conducted among Indigenous populations and underserved communities with limited access to medical care. This is due, in part, to the fact that autoimmune diseases are difficult to diagnose, even in clinical settings. In remote field settings these difficulties are compounded by the absence of infrastructure necessary for sample storage and analysis, and the lack of hospital/clinic access for more invasive diagnostic procedures. Because of these limitations, little is known about the prevalence of autoimmunity outside wealthy regions and clinical settings. AIMS The present paper discusses why AIID are of critical importance in human biology research and why more work needs to be devoted to validating, testing, and utilizing methods for detecting autoantibodies and other biomarkers related to autoimmunity in field-friendly, minimally invasively-collected samples. This paper reviews some of the methods used to diagnose AIIDs in clinical settings, and highlights methods that have been used in studies within human biology and related fields, emphasizing the invasiveness of specific methods and their feasibility in remote field settings. DISCUSSION AND CONCLUSIONS Risk for AIID is affected by several reproductive, dietary, environmental, and genetic factors. Human biologists have unique perspectives that they can bring to autoimmunity research, and more population-based studies on autoimmunity are needed within these and related fields.
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Affiliation(s)
- Tara J Cepon-Robins
- Department of Anthropology, University of Colorado Colorado Springs, Colorado Springs, Colorado, USA
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Verdelli A, Coi A, Marzano AV, Antiga E, Cozzani E, Quaglino P, La Placa M, Benucci M, De Simone C, Papini M, Parodi A, Bianchi F, Caproni M. Autoantibody profile and clinical patterns in 619 Italian patients with cutaneous lupus erythematosus. J Eur Acad Dermatol Venereol 2018; 33:742-752. [PMID: 29924416 DOI: 10.1111/jdv.15147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/30/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Anti-nuclear antibodies (ANA), anti-extractable nuclear antigens (ENA) and anti-dsDNA antibodies are often associated with cutaneous lupus erythematosus (CLE), with variable frequency depending on skin subtype. However, specific data based on large case-series on the pathogenetic, diagnostic and prognostic meaning of such autoantibodies are still lacking. OBJECTIVE To characterize the correlations between CLE subtypes as well as LE-non-specific skin lesions and their autoantibody pattern. METHODS Epidemiological, clinical and immunopathological data of 619 Italian patients with CLE and LE-non-specific skin lesions were analysed. Differences in age, sex, clinical features and autoantibody profile were evaluated in each LE subgroup. RESULTS Anti-nuclear antibodies (P < 0.0001), anti-dsDNA (P < 0.0001), ENA (P = 0.001), anti-Sm (P = 0.001), anti-RNP (P = 0.004) and anti-histone (P = 0.005) antibodies were associated with SLE. A strong association between ANA (P < 0.0001) and anti-dsDNA (P < 0.0001) and female gender was also found: positive ANA and positive anti-dsDNA had a higher prevalence among females. Chronic CLE resulted to be negatively associated with ENA (OR = 0.51, P < 0.0001), anti-Ro/SSA (OR = 0.49, P < 0.0001) and anti-dsDNA (OR = 0.37, P < 0.0001). Intermittent CLE resulted to be negatively associated with ENA (OR = 0.50, P = 0.007) and ANA (OR = 0.61, P = 0.025). Subacute CLE resulted to be associated with ENA (OR = 5.19, P < 0.0001), anti-Ro/SSA (OR = 3.83, P < 0.0001), anti-Smith (OR = 2.95, P = 0.004) and anti-RNP (OR = 3.18, P = 0.007). Acute CLE resulted to be strongly associated with anti-dsDNA (OR = 6.0, P < 0.0001) and ANA (OR = 18.1, P < 0.0001). LE-non-specific skin lesions resulted to be significantly associated with systemic involvement. Livedo reticularis was significantly associated with ENA (P = 0.007) and anti-Ro/SSA (P = 0.036). Palpable purpura and periungual telangiectasia were significantly associated with ANA. CONCLUSION According to our findings, some well-known associations between CLE subtypes and autoantibody profile were confirmed; moreover, specific association between autoantibodies and LE-non-specific skin lesions was highlighted. A strict association between anti-ENA and anti-Ro/SSA antibodies and livedo reticularis, ANA and palpable purpura, and ANA and periungual telangiectasia was evidenced.
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Affiliation(s)
- A Verdelli
- Department of Surgery and Translational Medicine, Section of Dermatology, University of Florence, Florence, Italy
| | - A Coi
- Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - A V Marzano
- Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, UOC Dermatologia, IRCCS Fondazione Ca' Granda Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
| | - E Antiga
- Department of Surgery and Translational Medicine, Section of Dermatology, University of Florence, Florence, Italy
| | - E Cozzani
- IRCCS-AOU San Martino-IST, Dissal, Section of Dermatology, University of Genoa, Genoa, Italy
| | - P Quaglino
- Department of Medical Sciences, Dermatologic Clinic, University of Turin, Turin, Italy
| | - M La Placa
- Dermology Division, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - M Benucci
- Rheumatology Unit, S. Giovanni di Dio Hospital, Florence, Italy
| | - C De Simone
- Dermatology Department, Policlinico Universitario 'A. Gemelli', Università Cattolica del Sacro Cuore, Rome, Italy
| | - M Papini
- Department of Surgical and Biomedical Sciences, Dermatologic Clinic of Terni, University of Perugia, Perugia, Italy
| | - A Parodi
- IRCCS-AOU San Martino-IST, Dissal, Section of Dermatology, University of Genoa, Genoa, Italy
| | - F Bianchi
- Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | - M Caproni
- Department of Surgery and Translational Medicine, Section of Dermatology, University of Florence, Florence, Italy
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Fagúndez P, Brañas G, Cairoli E, Laíz J, Tosar JP. An electrochemical biosensor for rapid detection of anti-dsDNA antibodies in absolute scale. Analyst 2018; 143:3874-3882. [DOI: 10.1039/c8an00020d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The authors report an electrochemical biosensor enabling fast (30 min) detection of anti-DNA antibodies in serum with reduced manipulation steps.
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Affiliation(s)
- Pablo Fagúndez
- Analytical Biochemistry Unit
- Nuclear Research Center
- Faculty of Science
- Universidad de la República
- Montevideo 11400
| | - Gustavo Brañas
- Analytical Biochemistry Unit
- Nuclear Research Center
- Faculty of Science
- Universidad de la República
- Montevideo 11400
| | - Ernesto Cairoli
- Systemic Autoimmune Diseases Unit
- Clínica Médica C
- Hospital de Clínicas
- Universidad de la República
- Montevideo 11600
| | - Justo Laíz
- Analytical Biochemistry Unit
- Nuclear Research Center
- Faculty of Science
- Universidad de la República
- Montevideo 11400
| | - Juan Pablo Tosar
- Analytical Biochemistry Unit
- Nuclear Research Center
- Faculty of Science
- Universidad de la República
- Montevideo 11400
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Olsen NJ, Choi MY, Fritzler MJ. Emerging technologies in autoantibody testing for rheumatic diseases. Arthritis Res Ther 2017; 19:172. [PMID: 28738887 PMCID: PMC5525353 DOI: 10.1186/s13075-017-1380-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Testing for the presence of antinuclear antibodies (ANAs) is a key step in the diagnosis of systemic lupus erythematosus (SLE) and other systemic autoimmune rheumatic diseases (SARD). The standard slide-based indirect immunofluorescence (IIF) test is widely used, but is limited by a relative lack of specificity for SLE and not all SARD-ANAs are detected. Alternative immunoassays that might offer enhanced diagnostic and prognostic information have evolved, and some of these have entered clinical practice. This review summarizes the current state of ANA testing and multiplex techniques for detecting other autoantibodies, the possibility of point-of-care testing, and approaches for applications in early disease stages.
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Affiliation(s)
- Nancy J Olsen
- Penn State M.S. Hershey Medical Center, 500 University Drive, Hershey, PA, 17033, USA.
| | - May Y Choi
- Cumming School of Medicine, University of Calgary, Calgary, AB, T2N4N1, Canada
| | - Marvin J Fritzler
- Cumming School of Medicine, University of Calgary, Calgary, AB, T2N4N1, Canada
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