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Updated: Dec 30, 2025

Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity

Interrogating Individual Autoreactive Germinal Centers by Photoactivation in a Mixed Chimeric Model of Autoimmunity

Published on: April 11, 2019

Autoimmunity and immunodeficiency.

Rodrigo Hoyos-Bachiloglu¹, Janet Chou²

¹Division of Pediatrics, Department of Pediatric Infectious Diseases and Immunology, Pontificia Universidad Católica de Chile Medical School, Santiago, Chile.

Current Opinion in Rheumatology

|January 25, 2020

Summary

This summary is machine-generated.

Recent discoveries in primary immunodeficiencies (PIDs) with autoimmunity reveal new mechanisms and expand clinical understanding. Research highlights novel pathways and therapeutic strategies for immune dysregulation and self-tolerance.

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Published on: April 11, 2019

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Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes

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Published on: September 26, 2013

Area of Science:

Immunology
Genetics
Autoimmunity

Background:

Advances in genomics and animal models have improved understanding of host immunity and self-tolerance.
Primary immunodeficiencies (PIDs) and autoimmunity are complex conditions with overlapping mechanisms.

Purpose of the Study:

To summarize key conceptual and clinical discoveries in primary immunodeficiencies and autoimmunity from 2018-2019.
To highlight novel mechanisms linking PIDs to autoimmunity.
To review recent therapeutic developments.

Main Methods:

Literature review of studies published between 2018 and 2019.
Analysis of conceptual and clinical findings in PIDs with autoimmunity.
Identification of new genetic defects and expanded clinical phenotypes.

Main Results:

Three new primary immunodeficiencies associated with autoimmunity were identified.
Clinical phenotypes of NFKB1 haploinsufficiency and RASGRP1 deficiency were expanded.
Novel mechanisms identified include regulatory T cell and germinal B cell metabolism, neutrophil extracellular traps in plasmacytoid dendritic cell activation, and the role of commensal bacteria in autoantibody generation.

Conclusions:

Mechanistic studies of PIDs with autoimmunity provide crucial insights into immune surveillance and self-tolerance.
Understanding these mechanisms is key to developing targeted therapies.
Therapeutic advances include JAK inhibitors and awareness of rituximab risks.