Innate Signaling, Cysteinyl Leukotrienes, and Asthma Elicited by House Dust Mite

先天信号传导、半胱氨酰白三烯和屋尘螨引发的哮喘

• 批准号: 8507466
• 负责人: Nora Amanda Barrett
• 金额: $ 13.65万
• 依托单位: BRIGHAM AND WOMEN'S HOSPITAL
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-14 至 2014-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8507466
• 关键词: Allergens; Allergic; Allergic Disease; Allergic inflammation; Antigen-Presenting Cells; Antigens; Asthma; Basic Science; Biology; Bone Marrow; Breathing; C Type Lectin Receptors; Cell physiology; Cells; Commit; Consult; Data; Dendritic Cells; Dendritic cell activation; Dermatophagoides farinae; Dermatophagoides pteronyssinus; Development; Eicosanoids; Epidemiology; Event; Exposure to; Fellowship; Generations; Hospitals; Hypersensitivity; Immune response; Immunology; In Vitro; Individual; Inflammation; Inflammation Mediators; Inflammatory; Institution; Instruction; Laboratories; Leukotriene Production; Link; Lung; Mediating; Mediator of activation protein; Medicine; Mentors; Modeling; Molecular; Molecular Biology; Mononuclear; Mus; Myelogenous; Pathogenesis; Pattern; Pattern recognition receptor; Pneumonia; Polysaccharides; Preparation; Principal Investigator; Process; Production; Program Development; Prostaglandins; Protocols documentation; Pyroglyphidae; Receptor Signaling; Recruitment Activity; Research; Research Personnel; Resources; Risk Factors; Role; Scientist; Series; Signal Transduction; Source; Stimulus; T cell response; T-Cell Activation; Testing; Training; Training Programs; Woman; Work; airborne allergen; asthma prevention; career; chemokine; cysteinyl leukotriene receptor; cysteinyl-leukotriene; cytokine; design; eosinophil; immunogenic; in vivo; instructor; leukotriene-C4 synthase; lipid mediator; mast cell; microbial; mouse dectin-2; mouse model; neutrophil; novel; pathogen; programs; pyroglyphid; receptor; response; skills

DESCRIPTION (provided by applicant): This proposal details a 5-year training program for the development of an academic career in the pathogenesis of asthma and allergic inflammation. The PI will focus her efforts on acquiring critical skills in molecular biology and mouse models of asthma to become an independent investigator. The PI completed fellowships in Pulmonary and in Allergy and Immunology at Brigham and Women's Hospital, including two years of research on the role of cysteinyl leukotrienes (cys-LTs) as powerful pro-inflammatory mediators. She is now an Instructor in Medicine with plans to continue basic science research under the direction of Dr. Frank Austen (mentor) and Dr. Yoshihide Kanaoka (co-mentor). Dust mite is one of the most significant allergens world-wide and has been linked to asthma pathogenesis. Recent work in Dr. Austen's lab shows that glycans in house dust mite extract elicit robust production of cys-LTs, and that the myeloid C-type lectin receptor, Dectin-2, mediates this process. This work describes a novel mechanism by which allergens can promote inflammation and identifies an important function for this newly-described pattern-recognition receptor. In the proposed plan, we will investigate the role of Dectin-2 signaling, and the subsequent cys-LTs produced, in dendritic cell activation (Aim 1) and in the generation of innate and adaptive pulmonary inflammation (Aim 2) in response to dust mite. The mentor is an eminent scientist in the field with over 50 established trainees and is fully focused on his current laboratory program. The co-mentor is an established molecular biologist who will directly supervise the trainee. In addition, an advisory group includes experts in pattern recognition receptors (Dr. Kobayashi) and eicosanoid biology (Dr. Boyce). Dr. Lambrecht, an expert in mouse models of dendritic cell function in asthma, will consult. The research will take place within the highly collaborative Inflammation and Allergic Diseases Research Section, a source of additional support. Lastly, the institution is committed to providing the necessary resources and training to help the primary investigator establish an independent career. RELEVANCE (See instructions): House dust mite is one of the most significant causes of allergy worldwide, and this allergy is a risk factor for the development of asthma. Studies to determine why this house dust mite is so immunogenic will be helpful to design new therapies for asthma prevention and treatment.

描述（由申请人提供）：本提案详细介绍了一个为期5年的培训计划，用于发展哮喘和过敏性炎症发病机制的学术生涯。PI将专注于获得分子生物学和哮喘小鼠模型的关键技能，成为独立研究者。PI在Brigham and Women's Hospital完成了肺和过敏和免疫学研究，包括为期两年的半胱氨酰白三烯（cys-LT）作为强大的促炎介质的作用研究。她现在是一名医学讲师，计划在Frank Austen博士（导师）和Yoshihide Kanaoka博士（共同导师）的指导下继续进行基础科学研究。 尘螨是世界范围内最重要的过敏原之一，并与哮喘发病机制有关。Austen博士实验室最近的工作表明，屋尘螨提取物中的聚糖引起cys-LT的大量产生，而髓样C型凝集素受体Dectin-2介导了这一过程。这项工作描述了一种新的机制，通过这种机制，过敏原可以促进炎症，并确定了这种新描述的模式识别受体的重要功能。在拟议的计划中，我们将研究Dectin-2信号传导的作用，以及随后产生的cys-LT在树突状细胞活化（Aim 1）和响应尘螨的先天性和适应性肺部炎症（Aim 2）中的作用。 导师是该领域的杰出科学家，拥有50多名受训人员，并完全专注于他目前的实验室计划。共同导师是一位成熟的分子生物学家，他将直接监督受训者。此外，一个顾问小组包括模式识别受体（小林博士）和类花生酸生物学（博伊斯博士）的专家。Lambrecht博士是哮喘树突细胞功能小鼠模型的专家，他将提供咨询。这项研究将在高度合作的炎症和过敏性疾病研究科进行，这是额外支持的来源。最后，该机构致力于提供必要的资源和培训，以帮助主要调查员建立独立的职业生涯。 相关性（参见说明）：屋尘螨是世界范围内最重要的过敏原因之一，这种过敏是哮喘发展的危险因素。研究确定这种屋尘螨为何具有如此强的免疫原性，将有助于设计预防和治疗哮喘的新疗法。