Subconjunctival Antigen Injection
Subconjunctival Antigen Injection - Related Videos
03:52
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2025
This video demonstrates the induction of systemic inflammation in an anesthetized mouse. The injection of mycobacterial antigen-adjuvant depots triggers cytokine release and localized inflammation. Lymphatic vessels open, enabling immune cell entry into lymph nodes and activation of T cells, which release pro-inflammatory cytokines, leading to widespread inflammation.
06:57
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Cited by 9 •
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In this antigen-driven colitis model, OT-II CD4+ T cells expressing a red fluorescent protein were adoptively transferred into RAG-/- mice that express a green fluorescent protein in mononuclear phagocytes (MPs). The hosts were challenged with Escherichia coli (E.coli) expressing the ovalbumin protein (OVA) fused to a cyan fluorescent protein (CFP).
05:04
Viral Antigen Microarray Assay to Detect Antibody Isotypes in Serum Against Viral Antigen
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2025
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04:08
Preparing an Antigen-Adjuvant Emulsion to Induce Autoimmune Encephalomyelitis
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2025
This video demonstrates an efficient homogenization technique to generate an antigen-adjuvant emulsion to induce experimental autoimmune encephalomyelitis (EAE) in a murine model. The emulsion contains an autoantigen — myelin oligodendrocyte glycoprotein (MOG) — in the water phase, surrounded by a continuous oil phase comprising an inactivated pathogenic bacteria. The emulsion ensures a sustained release of antigens for a prolonged immune response.
02:41
B Cell Activation on an Antigen-Coated Coverslip
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2025
This video demonstrates B cell activation in vitro. The process involves antigen interaction with B cell receptors, leading to cytoskeleton remodeling, immune synapse formation, lysosome movement, antigen internalization, processing, and subsequent presentation on MHC molecules for B cell activation.
FAQs
The injected material is captured locally by antigen-presenting cells, which process antigen-derived information and activate lymphocytes in draining lymphoid tissues. This links the exposure site with organized immune activation elsewhere in the body. Studying this sequence helps researchers determine how ocular antigen encounters influence both local mucosal defenses and broader antibody or T-cell responses.
Localized delivery focuses antigen exposure at the ocular surface, allowing researchers to examine tissue-specific immune responses rather than relying only on generalized systemic exposure. This distinction is important because mucosal and systemic immunity may not develop identically. The approach therefore helps separate immune events associated with the eye from responses occurring throughout the body.
Subconjunctival studies may use microbial antigens or purified proteins, depending on the research question. These materials provide a way to examine whether ocular exposure is associated with antibody responses, T-cell activation, or both. Comparing such outcomes can clarify how antigen exposure at a mucosal site shapes host defense, immune recognition, or inflammation.
Evaluation should address immune activity associated with the ocular surface and draining lymphoid tissues, together with broader antibody or T-cell responses when relevant. Researchers can then assess whether the exposure supports investigation of mucosal defense, systemic immunity, or inflammatory mechanisms. These outcome categories connect the local intervention to the biological question being tested.
Researchers may use the technique to evaluate candidate vaccines intended to influence immunity at an ocular or other mucosal interface. The localized exposure provides a model for examining antigen recognition, downstream lymphocyte activation, and the development of antibody or T-cell responses. Findings can help characterize whether a candidate produces the type of immunity relevant to ocular protection.
In immunology and infection research, the method supports studies of host defense at the eye, tissue-specific immunity, and the balance between protective responses and inflammation. It can also help model how microbial or protein antigens are handled after mucosal exposure. These applications make the approach useful for connecting antigen delivery with ocular immune mechanisms and infection-related outcomes.