The overarching goal of this proposal is to use a systems biology approach to define innate signatures that can predict vaccine efficacy and immunogenicity in young adults and the elderly. To achieve this goal we have initiated a highly collaborative effort to perform a detailed cellular and molecular characterization of human immune responses induced by three distinct vaccines: (i) the T-dependent inactivated trivalent influenza vaccine ( TIV ), (ii) the T-independent pneumococcal polysaccharide vaccine 23 ( PPV23 ) and (iii) the live attenuated varicella-zoster vaccine ( zoster). These three vaccines were selected for this study because influenza virus, pneumococcus and VZV, are of global public health importance and the cause of severe morbidity and mortality, especially in the elderly and other high-risk groups . In addition, all three of these vaccines are known to generate sub-optimal immune responses in a substantial proportion of elderly vaccinees. Defining the innate signatures in these sub-optimal responders may provide insight into the defects that underlie poor vaccine efficacy and immunogenicity in the elderly. This information may form the basis for developing rational strategies to enhance vaccine efficacy in the aged population. The goal of Project #2 is to characterize the key adaptive immune responses for each vaccine in the young and elderly cohorts. These data will then be used by the Genomics and Computational Biology Core to identify the innate signatures (Project #1) that predict the various adaptive immune parameters that are measured in Project #2. The following specific aims are proposed to achieve our goals:
Aim 1 : To characterize the adaptive immune responses induced by TIV vaccination in the young and the elderly.
Aim 2 : To characterize the magnitude and quality of the B cell mediated adaptive immune responses to pneumococcal vaccination in the young and the elderly.
Aim 3 : To characterize the adaptive immune responses in the young and elderly after zoster vaccination.
These studies will provide insight into adaptive immune responses in the young and the elderly induced by VZV, influenza, and pneumococcal vaccines. These three vaccine are of public health importance and elicit poor responses in the elderly.
|Suthar, Mehul S; Pulendran, Bali (2014) Systems analysis of West Nile virus infection. Curr Opin Virol 6:70-5|
|Pulendran, Bali (2014) Systems vaccinology: probing humanity's diverse immune systems with vaccines. Proc Natl Acad Sci U S A 111:12300-6|
|Janssens, Sophie; Pulendran, Bali; Lambrecht, Bart N (2014) Emerging functions of the unfolded protein response in immunity. Nat Immunol 15:910-9|
|Tan, Yan; Tamayo, Pablo; Nakaya, Helder et al. (2014) Gene signatures related to B-cell proliferation predict influenza vaccine-induced antibody response. Eur J Immunol 44:285-95|
|Kwissa, Marcin; Nakaya, Helder I; Onlamoon, Nattawat et al. (2014) Dengue virus infection induces expansion of a CD14(+)CD16(+) monocyte population that stimulates plasmablast differentiation. Cell Host Microbe 16:115-27|
|Chiu, Christopher; McCausland, Megan; Sidney, John et al. (2014) Broadly reactive human CD8 T cells that recognize an epitope conserved between VZV, HSV and EBV. PLoS Pathog 10:e1004008|
|Cortese, Mario; Sinclair, Charles; Pulendran, Bali (2014) Translating glycolytic metabolism to innate immunity in dendritic cells. Cell Metab 19:737-9|
|Oh, Jason Z; Ravindran, Rajesh; Chassaing, Benoit et al. (2014) TLR5-mediated sensing of gut microbiota is necessary for antibody responses to seasonal influenza vaccination. Immunity 41:478-92|
|Yu, Tianwei; Jones, Dean P (2014) Improving peak detection in high-resolution LC/MS metabolomics data using preexisting knowledge and machine learning approach. Bioinformatics 30:2941-8|
|Ravindran, Rajesh; Khan, Nooruddin; Nakaya, Helder I et al. (2014) Vaccine activation of the nutrient sensor GCN2 in dendritic cells enhances antigen presentation. Science 343:313-7|
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