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PDS Biotech Announces Publication of Preclinical Infectimune™ Based Vaccine Studies Demonstrating Effective Protection Against Viral Infection in Peer-Reviewed Journal, Viruses
Infectimune™ induced neutralizing antibody and robust T cell responses completely protecting animals against sickness after lethal challenge with live
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[{"type":"text","content":"Infectimune™ induced neutralizing antibody and robust T cell responses completely protecting animals against sickness after lethal challenge with live SARS-CoV-2 or influenza viruses\nFLORHAM PARK, N.J., Feb. 08, 2023 (GLOBE NEWSWIRE) -- PDS Biotechnology Corporation (Nasdaq: PDSB), a clinical-stage immunotherapy company developing a growing pipeline of targeted immunotherapies for cancer and infectious disease, announced that preclinical studies involving Infectimune™, PDS Biotech’s novel investigational immune activating platform, were published in the peer-reviewed journal, Viruses, demonstrating the technology’s ability to generate a broad immune response against viruses, including SARS-CoV-2 and multiple strains of influenza. The paper, titled, “Recombinant Protein Vaccines Formulated with Enantio-Specific Cationic Lipid R-DOTAP Induce Protective Cellular and Antibody-Mediated Immune Responses in Mice,” highlighted results from preclinical studies. It was found that Infectimune™ (R-DOTAP) promoted strong T cell and antibody immune responses in both single- and multi-viral antigen (protein) containing vaccines. The vaccines induced antigen-specific and multi-cytokine-inducing CD8 and CD4 T cells associated with antigen-specific killing and immune memory, respectively. Infectimune™ was tested in separate animal models of SARS-CoV-2 and influenza. Data suggest that Infectimune™ promotes robust neutralizing antibody and T cell responses to all three recombinant SARS‐CoV-2 spike protein variants tested in the studies. The investigational universal flu vaccine, containing two computationally optimized broadly reactive antigen (COBRA) influenza proteins, demonstrated induction of T cell and neutralizing antibodies against multiple strains of influenza. Robust T cell responses were also generated to influenza nucleoprotein, a protein contained in non-mutating regions of the virus. Importantly, these Infectimune™ induced neutralizing antibody and T cell responses completely protected animals from lethal challenges with live SARS-CoV-2 and influenza viruses. The Infectimune™ based vaccines also facilitated significant dose sparing of the viral protein antigens. “We are encouraged by the data reported in Viruses which suggest that Infectimune™ is a promising platform for the effective delivery of recombinant protein antigens to the im...