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Paradoxical effects of LS-2616 (Linomide) treatment in the type II collagen arthritis model in mice. 1989

J Björk, and S Kleinau
Department of Inflammation Research, Pharmacia LEO Therapeutics, Uppsala, Sweden.

The quinoline-3-carboxamide, Linomide, has been shown to possess potent immunomodulatory activity. We have evaluated the effect of Linomide in the type II collagen induced arthritis in mice. Treatment with Linomide (1.25-80 mg/kg/day) from the day of immunization strongly suppressed the arthritic response. On the other hand, initiation of treatment (20-80 mg/kg/day) at the onset of arthritis resulted in an increased severity of the arthritis. These potent and contradictory effects of Linomide, depending on treatment regime, indicates that central immuno-regulatory functions are affected and that this compound may be a useful tool for the understanding of autoimmune mechanisms.

UI MeSH Term Description Entries
D008297 Male Males
D008811 Mice, Inbred DBA An inbred strain of mouse. Specific substrains are used in a variety of areas of BIOMEDICAL RESEARCH such as DBA/1J, which is used as a model for RHEUMATOID ARTHRITIS. Mice, DBA,Mouse, DBA,Mouse, Inbred DBA,DBA Mice,DBA Mice, Inbred,DBA Mouse,DBA Mouse, Inbred,Inbred DBA Mice,Inbred DBA Mouse
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D006912 Hydroxyquinolines The 8-hydroxy derivatives inhibit various enzymes and their halogenated derivatives, though neurotoxic, are used as topical anti-infective agents, among other uses. Quinolinols,Chiniofon
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
D000906 Antibodies Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
D001168 Arthritis Acute or chronic inflammation of JOINTS. Oligoarthritis,Polyarthritis,Arthritides,Oligoarthritides,Polyarthritides
D001169 Arthritis, Experimental ARTHRITIS that is induced in experimental animals. Immunological methods and infectious agents can be used to develop experimental arthritis models. These methods include injections of stimulators of the immune response, such as an adjuvant (ADJUVANTS, IMMUNOLOGIC) or COLLAGEN. Adjuvant Arthritis,Arthritis, Adjuvant-Induced,Arthritis, Collagen-Induced,Arthritis, Adjuvant,Collagen Arthritis,Arthritides, Collagen,Arthritis, Collagen,Collagen Arthritides,Collagen-Induced Arthritides,Collagen-Induced Arthritis
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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