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Peptide specificity and HLA restriction do not dictate lymphokine production by allergen-specific T-lymphocyte clones. 1994

R J van Neerven, and M M van de Pol, and E A Wierenga, and R C Aalberse, and H M Jansen, and M L Kapsenberg
Laboratory of Cell Biology and Histology, University of Amsterdam, The Netherlands.

Human and murine CD4+ T lymphocytes can be subdivided into distinct subsets [T-helper type 0 (Th0), Th1 or Th2], based on their lymphokine production profiles. Not much is known about the factors that determine these restricted lymphokine secretion profiles. Peptide specificity and human leucocyte antigen (HLA) restriction may be such factors. As it is well established that allergen-specific T lymphocytes from atopic individuals and non-atopic controls differ in their lymphokine secretion profile, we studied two allergen-specific T-lymphocyte clones (TLC) with identical peptide specificity and HLA restriction that were generated from the peripheral blood of an atopic donor and a non-atopic control donor. The two CD4+ TLC recognize the same epitope (20-33) of the house dust mite Dermatophagoides pteronyssinus major allergen Der p II. Both TLC recognize the epitope in an HLA-DQB1*0602-restricted manner. However, the lymphokine production profiles of these TLC show clear differences after allergen-specific or polyclonal activation. As expected, TLC JBD4 from the atopic donor produced high levels of interleukin-4 (IL-4) without detectable interferon-gamma (IFN-gamma), whereas TLC PBA1 from the non-atopic donor produced both IFN-gamma and IL-4 upon allergen-specific or polyclonal activation. Inasmuch as both TLC recognized the same epitope of Der p II in association with the same HLA-DQ molecule, these data suggest that peptide specificity and HLA restriction of human allergen-specific TLC do not dictate their lymphokine secretion profile.

UI MeSH Term Description Entries
D006969 Hypersensitivity, Immediate Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-antibody reaction and causes smooth muscle contraction and increased vascular permeability. Atopic Hypersensitivity,Hypersensitivity, Atopic,Hypersensitivity, Type I,IgE-Mediated Hypersensitivity,Type I Hypersensitivity,Atopic Hypersensitivities,Hypersensitivities, Atopic,Hypersensitivities, IgE-Mediated,Hypersensitivities, Immediate,Hypersensitivities, Type I,Hypersensitivity, IgE-Mediated,IgE Mediated Hypersensitivity,IgE-Mediated Hypersensitivities,Immediate Hypersensitivities,Immediate Hypersensitivity,Type I Hypersensitivities
D007371 Interferon-gamma The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES. Interferon Type II,Interferon, Immune,gamma-Interferon,Interferon, gamma,Type II Interferon,Immune Interferon,Interferon, Type II
D008222 Lymphokines Soluble protein factors generated by activated lymphocytes that affect other cells, primarily those involved in cellular immunity. Lymphocyte Mediators,Mediators, Lymphocyte
D008925 Mites Any arthropod of the subclass ACARI except the TICKS. They are minute animals related to the spiders, usually having transparent or semitransparent bodies. They may be parasitic on humans and domestic animals, producing various irritations of the skin (MITE INFESTATIONS). Many mite species are important to human and veterinary medicine as both parasite and vector. Mites also infest plants. Acarus,Mite
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D002999 Clone Cells A group of genetically identical cells all descended from a single common ancestral cell by mitosis in eukaryotes or by binary fission in prokaryotes. Clone cells also include populations of recombinant DNA molecules all carrying the same inserted sequence. (From King & Stansfield, Dictionary of Genetics, 4th ed) Clones,Cell, Clone,Cells, Clone,Clone,Clone Cell
D006023 Glycoproteins Conjugated protein-carbohydrate compounds including MUCINS; mucoid, and AMYLOID glycoproteins. C-Glycosylated Proteins,Glycosylated Protein,Glycosylated Proteins,N-Glycosylated Proteins,O-Glycosylated Proteins,Glycoprotein,Neoglycoproteins,Protein, Glycosylated,Proteins, C-Glycosylated,Proteins, Glycosylated,Proteins, N-Glycosylated,Proteins, O-Glycosylated
D006683 HLA-DQ Antigens A group of the D-related HLA antigens found to differ from the DR antigens in genetic locus and therefore inheritance. These antigens are polymorphic glycoproteins comprising alpha and beta chains and are found on lymphoid and other cells, often associated with certain diseases. HLA-DC Antigens,HLA-MB Antigens,HLA-DC,HLA-DQ,HLA-DS,HLA-DS Antigens,HLA-LB,HLA-LB Antigens,HLA-MB,Antigens, HLA-DC,Antigens, HLA-DQ,Antigens, HLA-DS,Antigens, HLA-LB,Antigens, HLA-MB,HLA DC Antigens,HLA DQ Antigens,HLA DS Antigens,HLA LB Antigens,HLA MB Antigens
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000485 Allergens Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). Allergen

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