Single dose combination nanovaccine provides protection against influenza A virus in young and aged mice

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2019-01-01
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Ross, Kathleen
Senapati, Sujata
Alley, Jessica
Darling, Ross
Goodman, Jonathan
Jefferson, Matthew
Uz, Metin
Guo, Baoqing
Yoon, Kyoung-Jin
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Mallapragada, Surya
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Narasimhan, Balaji
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Ames National Laboratory

Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa.

For more than 70 years, the Ames National Laboratory has successfully partnered with Iowa State University, and is unique among the 17 DOE laboratories in that it is physically located on the campus of a major research university. Many of the scientists and administrators at the Laboratory also hold faculty positions at the University and the Laboratory has access to both undergraduate and graduate student talent.

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The Graduate Program in Neuroscience is an interdepartmental and interdisciplinary training program at Iowa State University that offers the Master of Science and Doctor of Philosophy degrees. The Neuroscience training program offers a broad spectrum of Neuroscience research opportunities, ranging from the molecular to the cellular to the systems level of analysis. The program includes over 40 faculty from the departments of Biochemistry, Biophysics and Molecular Biology; Biomedical Sciences; Chemical and Biological Engineering; Ecology, Evolution, and Organismal Biology; Food Science and Human Nutrition; Genetics, Development and Cell Biology; Kinesiology; Mechanical Engineering; and Psychology.
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The Department of Kinesiology seeks to provide an ample knowledge of physical activity and active living to students both within and outside of the program; by providing knowledge of the role of movement and physical activity throughout the lifespan, it seeks to improve the lives of all members of the community. Its options for students enrolled in the department include: Athletic Training; Community and Public Health; Exercise Sciences; Pre-Health Professions; and Physical Education Teacher Licensure. The Department of Physical Education was founded in 1974 from the merger of the Department of Physical Education for Men and the Department of Physical Education for Women. In 1981 its name changed to the Department of Physical Education and Leisure Studies. In 1993 its name changed to the Department of Health and Human Performance. In 2007 its name changed to the Department of Kinesiology. Dates of Existence: 1974-present. Historical Names: Department of Physical Education (1974-1981), Department of Physical Education and Leisure Studies (1981-1993), Department of Health and Human Performance (1993-2007). Related Units: College of Human Sciences (parent college), College of Education (parent college, 1974 - 2005), Department of Physical Education for Women (predecessor) Department of Physical Education for Men
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Abstract

Immunosenescence poses a formidable challenge in designing effective influenza vaccines for aging populations. While approved vaccines against influenza viruses exist, their efficacy in older adults is significantly decreased due to the diminished capabilities of innate and adaptive immune responses. In this work, the ability of a combination nanovaccine containing both recombinant hemagglutinin and nucleoprotein to provide protection against seasonal influenza virus infection was examined in young and aged mice. Vaccine formulations combining two nanoadjuvants, polyanhydride nanoparticles and pentablock copolymer micelles, were shown to enhance protection against challenge compared to each adjuvant alone in young mice. Nanoparticles were shown to enhance in vitro activation of dendritic cells isolated from aged mice, while both nanoadjuvants did not induce proinflammatory cytokine secretion which may be detrimental in aged individuals. In addition, the combination nanovaccine platform was shown to induce demonstrable antibody titers in both young and aged mice that correlated with the maintenance of body weight post-challenge. Collectively, these data demonstrate that the combination nanovaccine platform is a promising technology for influenza vaccines for older adults.

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This is a manuscript of an article published as Ross, Kathleen A., Sujata Senapati, Jessica R. Alley, Ross J. Darling, Jonathan Goodman, Matthew Jefferson, Metin Uz, Baoqing Guo , Kyoung-Jin Yoon , David E Verhoeven , Marian L. Kohut , Surya K. Mallapragada, Michael J. Wannemuehler and Balaji Narasimhan. "Single dose combination nanovaccine provides protection against influenza A virus in young and aged mice." Biomaterials Science (2019). doi: 10.1039/C8BM01443D. Posted with permission.

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Mon Jan 01 00:00:00 UTC 2018
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