Experimental Skin Inflammation
Experimental Skin Inflammation - Related Videos
03:46
Malassezia-Induced Skin Inflammation and Fungal Burden Analysis in a Murine Model
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2025
This video demonstrates Malassezia-induced skin infection in mice. Malassezia oil suspension is applied over the wounded ear, triggering inflammation and swelling of the ear tissue. Later, the ears are dissected, homogenized, and spread on an agar plate for growth. The number of colonies indicates the fungal burden resulting from skin inflammation.
02:49
A Technique to Assess the Immune Response against an Antigen by Inducing Skin Inflammation
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2025
This video demonstrates an in vivo technique to assess a test antigen by inducing skin inflammation in a murine model. The test antigen—a hapten in an oil/acetone solution—is topically applied to the skin of the mouse ear, and inflammation of the skin is assessed after an adequate period.
03:02
Chemical-induced Two-stage Skin Carcinogenesis Model: An Experimental In Vivo Mouse Model of Skin Cancer
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2023
This video describes the procedure to induce two-stage skin carcinogenesis to study tumor initiation by topical application of chemicals. In the first step, a mutagen, DMBA, is applied onto the skin of a mouse model which initiates tumor formation by causing mutations in the stem cells, followed by the application of a growth stimulator, TPA, which accelerates skin papilloma formation.
07:48
Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
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Cited by 45 •
2016
Intravenous administration of endotoxin reliably elicits dose-dependent physiological and immunological alterations consistent with several pathological states. This reductionist approach permits the investigation, modeling and experimental modification of systemic inflammation and its downstream effects in man.
01:38
Inflammation
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2019
Overview In response to tissue injury and infection, mast cells initiate inflammation. Mast cells release chemicals that increase the permeability of adjacent blood capillaries and attract additional immune cells to the wound or site of infection. Neutrophils are phagocytic leukocytes that exit the bloodstream and engulf invading microbes. Blood clotting platelets seal the wound and fibers create a scaffold for wound healing. Macrophages engulf aging neutrophils to end the acute inflammatory...
FAQs
Keratinocytes and resident immune cells help initiate local signaling after a skin challenge. They release cytokines and chemokines, which act as mediators that recruit leukocytes into the tissue. This recruitment connects early cellular signaling with observable redness, swelling, and barrier disruption. Measuring both mediators and infiltrating cells helps relate pathway activity to inflammatory severity.
A useful distinction comes from comparing the response pattern with its persistence and tissue effects. Inflammation can support protective processes, yet prolonged or excessive signaling may produce continuing pathology and barrier impairment. Experimental skin inflammation models help make this distinction by pairing visible changes with leukocyte infiltration, mediator levels, and barrier-function measurements rather than relying on appearance alone.
Different experimental triggers answer different biological questions. Irritants or allergens can be applied to provoke responses, whereas altering immune signaling examines pathway-driven effects. Tissue and animal systems add distinct biological contexts for observing these processes. Keeping the trigger and system explicit helps researchers interpret whether an outcome reflects local exposure, immune regulation, or tissue-level behavior.
An experimental workflow begins by selecting a tissue or animal system and introducing a defined irritant, allergen, or immune-signaling change. Researchers then assess visible pathology alongside cellular and molecular readouts, including leukocyte infiltration and mediator levels. Adding barrier-function measurements shows whether inflammation has altered tissue integrity. This coordinated sequence links induction to measurable outcomes.
No single readout captures every aspect of the response. Tissue appearance records visible pathology, immune-cell infiltration indicates cellular recruitment, mediator levels reflect signaling activity, and barrier function reveals tissue integrity. Considering these measures together allows molecular events to be compared with outward changes and helps evaluate how strongly a model reproduces the intended inflammatory features.
These models are useful for studying dermatitis and wound responses because they connect inflammatory pathways with tissue pathology. They also provide a framework for evaluating therapeutic candidates by showing whether treatment-associated changes occur in appearance, cell infiltration, mediator levels, or barrier function. In Biology, this multi-level view supports comparison of protective responses with persistent or damaging inflammation.