Molecular Immune Mechanisms
Molecular Immune Mechanisms - Related Videos
10:22
Use of the TetON System to Study Molecular Mechanisms of Zebrafish Regeneration
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Cited by 10 •
2015
Here we outline the workflow for using the TetON system to achieve tissue-specific gene expression in the adult regenerating zebrafish tail fin.
13:56
Characterization of Molecular Mechanisms of In vivo UVR Induced Cataract
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Cited by 4 •
2012
Cataract is the leading cause of blindness in the world. Solar ultraviolet radiation (UVR) is the main risk factor for cataract development. An animal model of far UVR-B induced cataract was developed. In this article we describe methods for investigation of cataract formation: exposure to UVR, quantitative RT-PCR and immunohistochemistry.
08:45
Assay for Pathogen-Associated Molecular Pattern (PAMP)-Triggered Immunity (PTI) in Plants
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Cited by 23 •
2009
A cell death-based assay for PTI in Nicotiana benthamiana plants is described.
01:38
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
15:39
Studying Organelle Dynamics in B Cells During Immune Synapse Formation
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Cited by 8 •
2019
Herein we describe two approaches to characterize cell polarization events in B lymphocytes during the formation of an IS. The first, involves quantification of organelle recruitment and cytoskeleton rearrangements at the synaptic membrane. The second is a biochemical approach, to characterize changes in composition of the centrosome, which undergoes polarization to the immune synapse.
FAQs
Pattern-recognition receptors detect conserved features shared by microbes, allowing an early response to potential threats. Antigen receptors provide more specific recognition, helping immune responses distinguish particular targets. This division of labor links broad initial detection with precise immune activation, supporting coordinated defense rather than relying on a single recognition strategy.
Recognition alone does not produce a coordinated defense. Downstream signaling activates transcription factors, which regulate the expression of cytokines and other responses associated with inflammation, antimicrobial activity, and immune-cell behavior. These signaling events translate molecular detection into changes in cell function, determining how the immune system organizes its response to infection.
These processes provide a sequence through which early immune detection can shape more specific protection. Antigen presentation communicates information about targets to adaptive immune cells, clonal expansion increases relevant responding cells, and antibody production supplies targeted immune molecules. Together, they help connect immediate host defense with immune memory and later protection.
A useful analysis can follow the response from threat detection through intracellular signaling, transcription-factor activation, cytokine regulation, inflammation, and antimicrobial activity. Researchers can then examine how antigen presentation and clonal expansion contribute to antibody production and memory. Mapping these stages helps relate molecular events to immune-cell behavior and overall host defense.
Understanding these mechanisms shows how recognition, signaling, antigen presentation, clonal expansion, and antibody production contribute to protective immunity. That knowledge supports research on vaccines designed to promote immune memory and on immunotherapies intended to influence immune responses. The same framework helps evaluate whether a strategy improves protection without disregarding immune regulation.
Pathogen evasion can interfere with the molecular processes that detect threats, coordinate signaling, or produce effective protective responses. Studying these interactions helps explain why host defense may be altered during infection and clarifies how immune mechanisms relate to disease. It also provides context for research into infectious diseases and approaches to improve immune protection.