title: Inhibition of Pim1 kinase activation attenuates allergen-induced airway hyperresponsiveness and inflammation.
abstract: Pim kinases are a family of serine/threonine kinases whose activity can be induced by cytokines involved in allergy and asthma. These kinases play a role in cell survival and proliferation, but have not been examined, to the best of our knowledge, in the development of allergic disease. This study sought to determine the role of Pim1 kinase in the development of allergic airway responses. Mice were sensitized and challenged with antigen (primary challenge), or were sensitized, challenged, and rechallenged with allergen in a secondary model. To assess the role of Pim1 kinase, a small molecule inhibitor was administered orally after sensitization and during the challenge phase. Airway responsiveness to inhaled methacholine, airway and lung inflammation, cell composition, and cytokine concentrations were assessed. Lung Pim1 kinase concentrations were increased after ovalbumin sensitization and challenge. In the primary allergen challenge model, treatment with the Pim1 kinase inhibitor after sensitization and during airway challenges prevented the development of airway hyperresponsiveness, eosinophilic airway inflammation, and goblet cell metaplasia, and increased Th2 cytokine concentrations in bronchoalveolar fluid in a dose-dependent manner. These effects were also demonstrated after a secondary allergen challenge, where lung allergic disease was established before treatment. After treatment with the inhibitor, a significant reduction was evident in the number of CD4(+) and CD8(+) T cells and concentrations of cytokines in the airways. The inhibition of Pim1 kinase was effective in preventing the development of airway hyperresponsiveness, airway inflammation, and cytokine production in allergen-sensitized and allergen-challenged mice. These data identify the important role of Pim1 kinase in the full development of allergen-induced airway responses.
authors.affiliation: Division of Cell Biology, Department of Pediatrics, National Jewish Health, Denver, CO 80206, USA.
authors.forename: Yoo Seob
authors.initials: YS
authors.lastname: Shin
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Takeda
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Shiraishi
authors.forename: Yi
authors.initials: Y
authors.lastname: Jia
authors.forename: Meiqin
authors.initials: M
authors.lastname: Wang
authors.forename: Leila
authors.initials: L
authors.lastname: Jackson
authors.forename: A Dale
authors.initials: AD
authors.lastname: Wright
authors.forename: Laura
authors.initials: L
authors.lastname: Carter
authors.forename: John
authors.initials: J
authors.lastname: Robinson
authors.forename: Erik
authors.initials: E
authors.lastname: Hicken
authors.forename: Erwin W
authors.initials: EW
authors.lastname: Gelfand
mesh_terms: D000485:Allergens / Q000276:immunology*; D000818:Animals; D001992:Bronchoalveolar Lavage Fluid; D015496:CD4-Positive T-Lymphocytes / Q000187:drug effects; D018414:CD8-Positive T-Lymphocytes / Q000187:drug effects; D016207:Cytokines / Q000378:metabolism; D004195:Disease Models, Animal; D004791:Enzyme Inhibitors / Q000494:pharmacology*; D005260:Female; D020397:Goblet Cells / Q000187:drug effects; D006967:Hypersensitivity / Q000276:immunology*; D007249:Inflammation / Q000276:immunology*; D008168:Lung / Q000187:drug effects / Q000473:pathology; D016210:Methacholine Chloride / Q000494:pharmacology; D051379:Mice; D008807:Mice, Inbred BALB C; D010047:Ovalbumin / Q000276:immunology / Q000494:pharmacology; D011014:Pneumonia / Q000276:immunology / Q000473:pathology; D051573:Proto-Oncogene Proteins c-pim-1 / Q000037:antagonists & inhibitors / Q000378:metabolism*; D012130:Respiratory Hypersensitivity / Q000276:immunology* / Q000517:prevention & control
chemical_list: D000485:Allergens; D016207:Cytokines; D004791:Enzyme Inhibitors; D016210:Methacholine Chloride; D010047:Ovalbumin; C496636:Pim1 protein, mouse; D051573:Proto-Oncogene Proteins c-pim-1
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