Immune Dysfunction

Immune dysfunction is a broad biological condition in which the immune system fails to regulate defense responses effectively, causing inadequate protection, excessive inflammation, or attacks on healthy tissue. It can arise when immune cells, signaling molecules, or tolerance mechanisms are impaired, leading to weakened responses such as immunodeficiency, misdirected responses in autoimmunity, or persistent activation during chronic inflammation. In biology and biomedical research, studying immune dysfunction helps clarify how infections, genetic changes, environmental factors, and disease processes alter host defense, while supporting the development of diagnostic biomarkers, targeted therapies, and strategies to restore balanced immune activity.

Immune Dysfunction - Related Videos

Education

JoVE Core - Biology

What is the Immune System?

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2019

Overview The immune system comprises diverse biological structures and processes that protect the body from disease. These processes can be classified into innate and adaptive immunity. To work effectively, the immune system needs to detect pathogens by distinguishing the body’s own structures from foreign elements. If this determination fails, autoimmune diseases occur in which the immune system reacts against the body’s own tissue. The Innate Immune System Acts Fast and Non-specifically

Research

JoVE Journal - Medicine

A Data-Driven Approach to Quantifying Immune States in Sepsis

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2025

This study investigates the immune condition in sepsis by analyzing the quantitative relationships among white blood cells, lymphocytes, and neutrophils in sepsis patients and healthy controls using data visualization analysis and three-dimensional numerical fitting to establish a mathematical model.

Isolation, Characterization and Functional Examination of the Gingival Immune Cell Network

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Cited by 30 •

2016

We have established a technique for the isolation, phenotypic characterization and functional analysis of immune cells from murine gingiva.

Humoral Immune Responses

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2019

Overview The humoral immune response, also known as the antibody-mediated immune response, targets pathogens circulating in “humors,” or extracellular fluids, such as blood and lymph. Antibodies target invading pathogens for destruction via multiple defense mechanisms, including neutralization, opsonization, and activation of the complement system. Patients that are impaired in the production of antibodies suffer from severe and frequent infections by common pathogens and unusual pathogens. B...

Research

JoVE Journal - Neuroscience
Free Sample

Mapping Dysfunctional Protein-Protein Interactions in Disease

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2025

Here, we present a protocol to enable the capture and identification of disease-specific protein-protein interactions from native cells and tissues using chemical probes and mass spectrometry. The resulting interaction datasets are analyzed through a dedicated web-based platform to reveal dynamic network dysfunctions and pathway alterations linked to disease.

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