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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
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Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
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Antigen Presenting Cells01:22

Antigen Presenting Cells

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The immune system is a complex network of cells and molecules that protects the body from foreign invaders. T cells, a type of white blood cell, play a crucial role in this process. They recognize and attack foreign substances, such as pathogens, that enter the body.
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Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
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MHC molecules are key players in the immune response, enabling T cells to recognize and respond to specific antigens. They are present on the surface of all nucleated cells in the body and are instrumental in presenting antigens to T cells and activating them. T cells recognize the MHC-antigen complex and initiate an immune response. MHC class I and MHC class II are two main types of MHC molecules, each associated with a distinct antigen processing pathway.
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A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
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Related Experiment Video

Updated: Feb 11, 2026

Electrochemiluminescence Assays for Human Islet Autoantibodies
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Distinct Enterovirus Antigen Landscape in Children With Islet Autoimmunity.

Beatriz Delgado-Corrales1, Legana Fingerhut1, Preston Leung1

  • 1School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, New South Wales, Australia.

Diabetes
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Summary
This summary is machine-generated.

Host immune responses to enteroviruses (EVs), not just infection, drive islet autoimmunity (IA) development. Distinct EV antibody signatures in children with IA highlight specific viral regions and sex-specific responses, suggesting a new framework for autoimmune pathogenesis.

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Area of Science:

  • Immunology
  • Virology
  • Autoimmunity

Background:

  • Enteroviruses (EVs) are linked to islet autoimmunity (IA) and type 1 diabetes.
  • Host immune responses, not viral exposure alone, likely determine disease susceptibility.
  • Understanding the specific host antibody response to EVs is crucial for IA pathogenesis.

Purpose of the Study:

  • To compare the enterovirus (EV) antigen landscape in children with and without IA.
  • To identify distinct host antibody signatures associated with IA development.
  • To investigate the role of host-specific immune responses in IA pathogenesis.

Main Methods:

  • Virome-wide serological profiling (VirScan) was employed.
  • Two independent pediatric cohorts from Australia were analyzed.
  • Samples were collected at seroconversion to capture early immune responses.

Main Results:

  • A reproducible and distinct EV-specific antibody signature was identified in IA-positive children.
  • An immunogenic hotspot was localized to a conserved region in the 3D RNA-dependent RNA polymerase.
  • IA-positive males showed heightened antibody responses to a VP1 capsid protein motif compared to controls.

Conclusions:

  • Differential antiviral humoral responses play a central role in IA development.
  • Specific EV antibody signatures can serve as potential markers for IA onset.
  • A new framework is needed to study host-virus interactions in autoimmune pathogenesis.