Novel vaccines for otitis media

中耳炎新型疫苗

基本信息

批准号：
7810877
负责人：
Elaine I Tuomanen
金额：
$ 38.73万
依托单位：
ST. JUDE CHILDREN'S RESEARCH HOSPITAL
依托单位国家：
美国
项目类别：
财政年份：
2009
资助国家：
美国
起止时间：
2009-09-17 至 2011-08-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/7810877
关键词：
Acute Address Adverse effects Animal Model Animals Antibiotic Therapy Antibiotics Antibodies Antibody Formation Applications Grants Area Attention Attenuated Attenuated Live Virus Vaccine B-Lymphocytes CD4 Positive T Lymphocytes Cells Child Childhood Clinic Clinical Clinical Data Clinical Research Conjugate Vaccines Data Development Disease Drug resistance Economic Burden Effectiveness Ferrets Funding Grant Helper-Inducer T-Lymphocyte Immune Immune response Immunobiology Immunoglobulin Class Switching Immunology Infection Infection prevention Knowledge Life Link Mediating Medical Membrane Proteins Methods Modeling Mucosal Immune Responses Mucosal Immunity Mus Otitis Media Patient observation Physicians Pneumococcal Infections Pneumococcal vaccine Pneumonia Population Prevention Prevnar Recommendation Recovery Relative (related person)Resistance Risk Factors Running Serotyping Streptococcus pneumoniae T-Lymphocyte Testing Vaccinated Vaccination Vaccines Visit Work capsule cost meetings novel novel vaccines pre-clinical prevent protective efficacy public health relevance response stem vaccination strategy vaccine candidate

项目摘要

DESCRIPTION (provided by applicant): This proposal meets the requirements of two major Challenge Areas within Clinical Research, "Prevention of otitis media" (04-DC101), and "Develop novel methods and address key questions in mucosal immunology" (04-AI-101). Otitis media caused by Streptococcus pneumoniae represents a significant medical burden in children. While the advent of the pneumococcal polyvalent conjugate vaccine Prevnar has decreased the burden of pneumococcal disease overall, the suboptimal mucosal immune response has proved problematic in eliciting effective protection. Even with vaccination, acute otitis media is the leading cause of pediatric physician visits and is responsible for a majority of the antibiotics prescribed to young children. This underscores the importance of development of new vaccination strategies and a greater understanding of host mucosal immunity. To this end, intranasal vaccination has recently gained considerable attention as an alternative strategy due to potential effectiveness at inducing a robust mucosal immune response. We propose to evaluate the immune responses and protective efficacy of two novel live, attenuated pneumococcal vaccines against otitis media using newly described, robust animal models. These data are expected to expand our knowledge of mucosal immunity to otitis media and provide pre-clinical data useful for advancing novel vaccines to the clinic. PUBLIC HEALTH RELEVANCE: Otitis media caused by Streptococcus pneumoniae represents a significant medical burden in children. While the advent of the pneumococcal polyvalent conjugate vaccine Prevnar has decreased the burden of pneumococcal disease overall, the suboptimal mucosal immune response has proved problematic in eliciting effective protection. Even with vaccination, acute otitis media is the leading cause of pediatric physician visits and is responsible for a majority of the antibiotics prescribed to young children. This underscores the importance of development of new vaccination strategies and a greater understanding of host mucosal immunity. To this end, intranasal vaccination has recently gained considerable attention as an alternative strategy due to potential effectiveness at inducing a robust mucosal immune response. We propose to evaluate the immune responses and protective efficacy of two novel live, attenuated pneumococcal vaccines against otitis media using newly described, robust animal models. These data are expected to expand our knowledge of mucosal immunity to otitis media and provide pre-clinical data useful for advancing novel vaccines to the clinic.

描述（由申请人提供）：该提案满足临床研究中两个主要挑战领域的要求，“预防中耳炎”（04-DC101）和“开发新方法并解决粘膜免疫学中的关键问题”（04-AI） -101）。肺炎链球菌引起的中耳炎给儿童带来了巨大的医疗负担。虽然肺炎球菌多价结合疫苗 Prevnar 的出现总体上减轻了肺炎球菌疾病的负担，但事实证明，次优的粘膜免疫反应在引发有效保护方面存在问题。即使接种了疫苗，急性中耳炎仍然是儿科医生就诊的主要原因，也是大多数给幼儿开抗生素的原因。这强调了开发新的疫苗接种策略和更好地了解宿主粘膜免疫的重要性。为此，鼻内疫苗接种作为一种替代策略最近受到了相当多的关注，因为它具有诱导强大粘膜免疫反应的潜在功效。我们建议使用新描述的稳健动物模型来评估两种新型肺炎球菌减毒活疫苗针对中耳炎的免疫反应和保护功效。这些数据预计将扩大我们对中耳炎粘膜免疫的了解，并为将新型疫苗推向临床提供有用的临床前数据。公共卫生相关性：肺炎链球菌引起的中耳炎给儿童带来了巨大的医疗负担。虽然肺炎球菌多价结合疫苗 Prevnar 的出现总体上减轻了肺炎球菌疾病的负担，但事实证明，次优的粘膜免疫反应在引发有效保护方面存在问题。即使接种了疫苗，急性中耳炎仍然是儿科医生就诊的主要原因，也是大多数给幼儿开抗生素的原因。这强调了制定新的疫苗接种策略和更好地了解宿主粘膜免疫的重要性。为此，鼻内疫苗接种作为一种替代策略最近引起了相当大的关注，因为它具有诱导强大粘膜免疫反应的潜在功效。我们建议使用新描述的、稳健的动物模型。这些数据有望扩展我们对中耳炎粘膜免疫的了解，并为将新型疫苗推向临床提供有用的临床前数据。