cell-mediated reaction

cell-·me·di·at·ed re·ac·tion

immunologic reaction of the delayed type, involving antigen-specific T lymphocytes, important in host defense against infection, in autoimmune diseases, and in transplant rejection.
See also: skin test.
Farlex Partner Medical Dictionary © Farlex 2012

cell-me·di·at·ed re·ac·tion

(sel'mē'dē-āt-ĕd rē-ak'shŭn)
Immunologic reaction of the delayed type, involving chiefly T lymphocytes; important in host defense against infection, in autoimmune diseases, and in organ transplant rejection.
See also: skin test
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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Gell and Coombs classification of drug allergies (6) Type Mechanism Example Type 1 IgE antibodies mast cell/ Penicilin- basophil degranulation anaphylaxis Type 2 IgG against cell surface/ IgM-mediated cytotoxic reaction Quinidine- hemolytic anemia Type 3 Immune complex Cephalexin- storage reaction serum disease Type 4 Delayed type Neomycine- cell-mediated reaction contact dermatitis Table 4.
Approach to drug allergies in the childhood
Systemic medications may induce different drug-specific immunoinflammatory hypersensitivity responses including type I immunoglobulin E- (IgE-) mediated, type II IgG-mediated, type III immune complex, and type IV T cell-mediated reactions [1].
Adverse Immunologically Mediated Oral Mucosal Reactions to Systemic Medication: Lichenoid Tissue Reaction/Interface Dermatitis-Stomatitis, Autoimmune Vesiculobullous Disease, and IgE-Dependent and Immune Complex Reactions
Moreover, other mediators such as some key coagulation factors might influence innate immunity as well as cell-mediated reactions like healing, response to tissue injury, or inflammatory processes [4,5].
Inflammation and Cardiovascular Cross Talk in Ischemic Vascular Diseases
Hypersensitivity pneumonitis (HP), originally known as extrinsic allergic alveolitis, is an allergic lung disease caused by the inhalation of organic or inorganic particles that trigger a cascade of immune-complex and cell-mediated reactions. Bird fancier's lung is one of the most common forms of HP.' It is a unique form of HP in that the offending antigen is a protein, rather than a micro-organism, and is contained in the feathers, serum and guano of birds.
Chest imaging by high-resolution computed tomography (HRCT): diagnosis

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