Biomaterial Database

Adjuvant activity of muramyldipeptide in a guinea pig model of contact allergy to chromium. 1983

D Jírová, and V Janecková, and S Znojemská, and J Pekárek

New chemical agents encountered increasingly in the human environment underline the urgent need for a routine testing of their sensitizing potential for man and the development of a suitable experimental model appears to be essential for a reliable assessment of this potential. In our present experiment we studied a guinea pig model of contact hypersensitivity to chromium using as immunoadjuvants Freund's complete adjuvant (FCA) and Freund's incomplete adjuvant (FIA) emulsified with muramyldipeptide. The study showed that the use of adjuvants was essential for inducing the state of hypersensitivity in experimental animals. It was also demonstrated that muramyldipeptide was not only a fully potent substitute for FCA, but was even superior to it in all the parameters tested. The optimal time interval for demonstrating the induced hypersensitivity to chromium was the third week after the onset of sensitization. This animal model appears to be well suited for the experimental testing of contact allergen potentials.

UI	MeSH Term	Description	Entries
D002857	Chromium	A trace element that plays a role in glucose metabolism. It has the atomic symbol Cr, atomic number 24, and atomic weight 52. According to the Fourth Annual Report on Carcinogens (NTP85-002,1985), chromium and some of its compounds have been listed as known carcinogens.
D003877	Dermatitis, Contact	A type of acute or chronic skin reaction in which sensitivity is manifested by reactivity to materials or substances coming in contact with the skin. It may involve allergic or non-allergic mechanisms.	Contact Dermatitis,Dermatitis Venenata,Eczema, Contact,Hypersensitivity, Contact,Sensitivity, Contact,Contact Dermatitides,Contact Eczema,Contact Hypersensitivities,Contact Hypersensitivity,Contact Sensitivities,Contact Sensitivity,Dermatitides, Contact,Hypersensitivities, Contact,Sensitivities, Contact
D005620	Freund's Adjuvant	An antigen solution emulsified in mineral oil. The complete form is made up of killed, dried mycobacteria, usually M. tuberculosis, suspended in the oil phase. It is effective in stimulating cell-mediated immunity (IMMUNITY, CELLULAR) and potentiates the production of certain IMMUNOGLOBULINS in some animals. The incomplete form does not contain mycobacteria.	Freund Adjuvant,Adjuvant, Freund,Adjuvant, Freund's,Freunds Adjuvant
D006168	Guinea Pigs	A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.	Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D000119	Acetylmuramyl-Alanyl-Isoglutamine	Peptidoglycan immunoadjuvant originally isolated from bacterial cell wall fragments; also acts as pyrogen and may cause arthritis; stimulates both humoral and cellular immunity.	Mur-NAc-L-Ala-D-isoGln,Muramyl Dipeptide,Acetylmuramyl Alanyl Isoglutamine,N-Acetyl-Muramyl-L-Alanyl-D-Glutamic-alpha-Amide,N-Acetylmuramyl-L-Alanyl-D-Isoglutamine,Alanyl Isoglutamine, Acetylmuramyl,Dipeptide, Muramyl,Isoglutamine, Acetylmuramyl Alanyl,Mur NAc L Ala D isoGln,N Acetyl Muramyl L Alanyl D Glutamic alpha Amide,N Acetylmuramyl L Alanyl D Isoglutamine
D000276	Adjuvants, Immunologic	Substances that augment, stimulate, activate, potentiate, or modulate the immune response at either the cellular or humoral level. The classical agents (Freund's adjuvant, BCG, Corynebacterium parvum, et al.) contain bacterial antigens. Some are endogenous (e.g., histamine, interferon, transfer factor, tuftsin, interleukin-1). Their mode of action is either non-specific, resulting in increased immune responsiveness to a wide variety of antigens, or antigen-specific, i.e., affecting a restricted type of immune response to a narrow group of antigens. The therapeutic efficacy of many biological response modifiers is related to their antigen-specific immunoadjuvanticity.	Immunoactivators,Immunoadjuvant,Immunoadjuvants,Immunologic Adjuvant,Immunopotentiator,Immunopotentiators,Immunostimulant,Immunostimulants,Adjuvant, Immunologic,Adjuvants, Immunological,Immunologic Adjuvants,Immunological Adjuvant,Adjuvant, Immunological,Immunological Adjuvants
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia