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Association of serum interleukin-33 level and the interleukin-33 genetic variant with Japanese cedar pollinosis. 2008

M Sakashita, and T Yoshimoto, and T Hirota, and M Harada, and K Okubo, and Y Osawa, and S Fujieda, and Y Nakamura, and K Yasuda, and K Nakanishi, and M Tamari
Laboratory for Genetics of Allergic Diseases, SNP Research Center, RIKEN, Kanagawa, Japan.

BACKGROUND IL-33, an IL-1-like cytokine, is a ligand for IL1RL1, which is an important effector molecule of type 2 T helper responses. Although IL-33/IL1RL1 interaction has been suggested to be important in induction of allergic airway inflammation, serum levels of IL-33 and the genetic influences of the polymorphisms of IL-33 in human allergic diseases are unclear. OBJECTIVE The aim of this study was to examine whether the serum IL-33 level and polymorphisms in IL-33 are associated with Japanese cedar (JC) pollinosis, the most common form of allergic rhinitis, and a major public health problem, in Japan. METHODS We performed linkage disequilibrium (LD) mapping of the gene using the HapMap database, and two selected tag single nucleotide polymorphisms were genotyped. We conducted an association study of IL-33 (JC pollinosis, n=170; normal controls, n=100) and measured the IL-33 levels in sera of the 270 subjects by ELISA. RESULTS Serum levels of IL-33 were significantly higher in patients with JC pollinosis (P=0.0018) than in controls. In genetic association analysis, we found a positive association between the polymorphism and JC pollinosis (P=0.048). CONCLUSIONS Our results support a role for IL-33 in the pathogenesis of JC pollinosis.

UI MeSH Term Description Entries
D007073 Immunoglobulin E An immunoglobulin associated with MAST CELLS. Overexpression has been associated with allergic hypersensitivity (HYPERSENSITIVITY, IMMEDIATE). IgE
D007378 Interleukins Soluble factors which stimulate growth-related activities of leukocytes as well as other cell types. They enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli. Interleukin
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011058 Pollen The fertilizing element of plants that contains the male GAMETOPHYTES. Male Gametes, Plant,Male Gametophytes,Microspores, Plant,Plant Microspores,Pollen Grains,Gamete, Plant Male,Gametes, Plant Male,Gametophyte, Male,Gametophytes, Male,Grain, Pollen,Grains, Pollen,Male Gamete, Plant,Male Gametophyte,Microspore, Plant,Plant Male Gamete,Plant Male Gametes,Plant Microspore,Pollen Grain
D004198 Disease Susceptibility A constitution or condition of the body which makes the tissues react in special ways to certain extrinsic stimuli and thus tends to make the individual more than usually susceptible to certain diseases. Diathesis,Susceptibility, Disease,Diatheses,Disease Susceptibilities,Susceptibilities, Disease
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D006255 Rhinitis, Allergic, Seasonal Allergic rhinitis that occurs at the same time every year. It is characterized by acute CONJUNCTIVITIS with lacrimation and ITCHING, and regarded as an allergic condition triggered by specific ALLERGENS. Hay Fever,Pollen Allergy,Pollinosis,Seasonal Allergic Rhinitis,Hayfever,Allergic Rhinitides, Seasonal,Allergic Rhinitis, Seasonal,Allergies, Pollen,Allergy, Pollen,Fever, Hay,Pollen Allergies,Pollinoses,Rhinitides, Seasonal Allergic,Rhinitis, Seasonal Allergic,Seasonal Allergic Rhinitides
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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