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Journal ArticleDOI

Lupus érythémateux systémique et lymphopénie : aspects cliniques et physiopathologiques

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TLDR
The lymphopenie dans le LES is independante des autres cytopenies and des immunosuppresseurs recus, and associee a l’activite de la maladie, au risque de poussee lupique and aux sequelles viscerales as discussed by the authors.
Abstract
Resume La lymphopenie est tres frequente au cours du lupus erythemateux systemique (LES), et profonde ( 3 ) dans 10 % des cas. Elle touche principalement les lymphocytes T, notamment CD4 + . Les mecanismes physiopathologiques sont complexes, faisant intervenir des anticorps lymphocytotoxiques, un exces d’apoptose, une sensibilite accrue a la lyse par le complement, de meme qu’une repression de la lymphopoiese et des phenomenes de sequestration lymphocytaire. La lymphopenie dans le LES est independante des autres cytopenies et des immunosuppresseurs recus. Elle est associee a l’activite de la maladie, au risque de poussee lupique et aux sequelles viscerales. Le risque infectieux est principalement bacterien, et une lymphopenie 3 ), qui constituent tres probablement un sous-groupe de LES avec deficit immunitaire primitif associe et necessitant une prise en charge specifique.

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Citations
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COVID-19 and Systemic Lupus Erythematosus: Focus on Immune Response and Therapeutics.

TL;DR: The SARS-CoV-2 novel coronavirus has caused the COVID-19 pandemic with over 35 million cases and over a million deaths worldwide as of early October 2020, and better understanding of the underlying immune response and therapeutic strategies in lupus and COIDs is important to guide management of this deadly infectious disease.
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Cellular and molecular mechanisms breaking immune tolerance in inborn errors of immunity.

TL;DR: The authors explored the interconnected pathogenic pathways of autoimmunity and primary immunodeficiency, highlighting the mechanisms breaking the different layers of immune tolerance to self-antigens in selected inborn errors of immunity.
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Pre-test probability for SARS-Cov-2-related infection score: The PARIS score.

TL;DR: The PARIS score has a good performance to categorize the pre-test probability of SARS-CoV-2 infection based on complete white blood cell count and could help clinicians adapt testing and for rapid triage of patients before test results.
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Double Negative B Cell Is Associated With Renal Impairment in Systemic Lupus Erythematosus and Acts as a Marker for Nephritis Remission.

TL;DR: It is suggested that the peripheral DN B cells are positively correlated with the severity of renal damage in LN patients and may potentially be used as a prognostic marker in Ln.
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SARS-CoV-2 vaccines in patients with SLE.

TL;DR: In this article, the authors discuss the challenges of applying vaccine data to patients with autoimmune diseases and the evidence available in the literature that may help in the decision process, and discuss how to apply vaccine data in the context of patients with SLE.
References
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Journal ArticleDOI

The 1982 revised criteria for the classification of systemic lupus erythematosus

TL;DR: The 1971 preliminary criteria for the classification of systemic lupus erythematosus (SLE) were revised and updated to incorporate new immunologic knowledge and improve disease classification and showed gains in sensitivity and specificity.
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Updating the American College of Rheumatology revised criteria for the classification of systemic lupus erythematosus.

TL;DR: In 1992, Piette and colleagues suggested that the ACR revised criteria be reevaluated in light of the above discoveries, and the presence and clinical associations or antiphospholipid antibodies in patients with SLE was suggested.
Journal ArticleDOI

Derivation and validation of the Systemic Lupus International Collaborating Clinics classification criteria for systemic lupus erythematosus.

Michelle Petri, +51 more
TL;DR: The Systemic Lupus International Collaborating Clinics (SLICC) group revised and validated the American College of Rheumatology (ACR) systemic lupus erythematosus (SLE) classification criteria in order to improve clinical relevance, meet stringent methodology requirements, and incorporate new knowledge regarding the immunology of SLE.
Journal ArticleDOI

Predominant Autoantibody Production by Early Human B Cell Precursors

TL;DR: The prevalence of self-reactive antibody formation and its regulation in human B cells is determined and a majority (55 to 75%) of all antibodies expressed by early immature B cells displayedSelf-reactivity, including polyreactive and anti-nuclear specificities.
Journal Article

Accelerated in vitro apoptosis of lymphocytes from patients with systemic lupus erythematosus.

TL;DR: The demonstration of altered in vitro apoptosis of lymphocytes derived from SLE patients raises the possibility that abnormalities of apoptosis may contribute to the pathogenesis of SLE.
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