6 research outputs found
Self-Assembled Nanostructures Presenting Repetitive Arrays of Subunit Antigens for Enhanced Immune Response
Infectious diseases pose persistent threats to public
health, demanding
advanced vaccine technologies. Nanomaterial-based delivery systems
offer promising solutions to enhance immunogenicity while minimizing
reactogenicity. We introduce a self-assembled vaccine (SAV) platform
employing antigen-polymer conjugates designed to facilitate robust
immune responses. The SAVs exhibit efficient cellular uptake by dendritic
cells (DCs) and macrophages, which are crucial players in the innate
immune system. The high-density antigen presentation of this SAV platform
enhances the affinity for DCs through multivalent recognition, significantly
augmenting humoral immunity. SAV induced high levels of immunoglobulin
G (IgG), IgG1, and IgG2a, suggesting that mature DCs efficiently induced
B cell activation through multivalent antigen recognition. Universality
was confirmed by applying it to respiratory viruses, showcasing its
potential as a versatile vaccine platform. Furthermore, we have also
demonstrated strong protection against influenza A virus infection
with SAV containing hemagglutinin, which is used in influenza A virus
subunit vaccines. The efficacy and adaptability of this nanostructured
vaccine present potential utility in combating infectious diseases
AIM 2019 Challenge on Video Temporal Super-Resolution: Methods and Results
Videos contain various types and strengths of motions that may look unnaturally discontinuous in time when the recorded frame rate is low. This paper reviews the first AIM challenge on video temporal super-resolution (frame interpolation) with a focus on the proposed solutions and results. From low-frame-rate (15 fps) video sequences, the challenge participants are asked to submit higher-frame-rate (60 fps) video sequences by estimating temporally intermediate frames. We employ the REDS VTSR dataset derived from diverse videos captured in a hand-held camera for training and evaluation purposes. The competition had 62 registered participants, and a total of 8 teams competed in the final testing phase. The challenge winning methods achieve the state-of-the-art in video temporal super-resolution.N