Longhorn Vaccines and Diagnostics Experiences Composite Peptide Vaccines Generate Immune Responses to Each Influenza and Coronavirus


BETHESDA, Md. & GAITHERSBURG, Md.–(BUSINESS WIRE)–Longhorn Vaccines and Diagnostics LLC, a One Well being and One Global corporate growing vaccines and diagnostic gear for world public well being and zoonosis considerations, reported knowledge these days from a pre-clinical learn about of an adjuvanted composite peptide vaccine made out of more than a few conserved epitopes from each influenza and coronavirus. The information was once in keeping with Longhorn’s lead vaccine candidate LHNVD-105, a composite peptide common influenza vaccine candidate, delivered with the United States Military’s Liposomal Adjuvant (ALFQ). Each vaccines generate a strong, sturdy and balanced immune reaction.

The findings from this learn about have been introduced in an oral presentation consultation at Infectious Illness Week (IDWeek) 2022, happening in Washington, DC, Oct. 19-23, 2022.

“Adjuvanted composite peptides are a formidable vaccine platform that can be utilized for unmarried or more than one pathogens and are simply scalable and cost-effective,” mentioned Longhorn CEO Gerald Fischer, MD. “The learn about knowledge enhance the potential of Longhorn to broaden vaccines towards a variety of pathogens – one at a time and in mixtures – the use of many alternative adjuvants with constant effects. We intention to transport our common influenza vaccine candidate, LHNVD-105, into Section 1 medical trials beginning in 2023. Our workforce is dedicated to growing vaccines that can have have an effect on around the globe.”

The presentation, titled, “A Composite Peptide Vaccine Constituted of Conserved SARS-CoV-2 and Influenza Epitopes Generated Antisera Reponses to Each Coronavirus and Influenza,” confirmed:

  • Immunization of mice with composite peptide vaccines made out of conserved epitopes of both SARS-CoV-2 RNA polymerase or Spike protein, each and every together with conserved Influenza (NA and M2e) epitopes and a T mobile epitope, generated cross-reactive and sturdy neutralizing antibodies to each and every of the coronavirus and influenza epitopes within the vaccine.
  • The blended composite peptide vaccine generated extremely enhanced immune responses with simplest number one immunization, which larger additional with a spice up (titers as much as 100,000).
  • Th1 and Th2 responses have been seen (IgG1 and IgG2b titers) and the titers remained secure for past 250 days put up number one immunization, with out further boosts put up day-35, indicating the width and sturdiness of immune responses.

“Sturdy and advantageous common and aggregate vaccines will probably be very important to overcoming vaccine fatigue and decreasing charge of vaccine management internationally” mentioned Longhorn President Jeff Fischer. “The information introduced these days strengthens the case for adjuvated composite peptide vaccines for decreasing viral, bacterial, and parasitic infections and validates our manner of the use of more than one conserved goals on each and every pathogen to scale back the chance of break out mutations.”

The presentation will also be accessed on-line at www.lhnvd.com/vaccines-antibodies.

About Longhorn Vaccines and Diagnostics LLC

Longhorn Vaccines and Diagnostics LLC is a One Well being and One Global corporate based totally in Maryland this is growing vaccines and diagnostic gear for international public well being considerations and to stop long run pandemics. Since its inception in 2006, Longhorn has considering growing vaccines and diagnostic gear that may have an effect on a deadly disease on an international scale and in any respect socio-economic ranges. Since pandemics waft between people and animals, Longhorn caters to each so as to surveil, diagnose, save you and deal with the following infectious illness.

Longhorn’s core diagnostic product, PrimeStore® Molecular Delivery Medium (MTM), is a patented, FDA cleared, cutting-edge ambient temperature molecular diagnostic assortment and shipping software that may assist governments, world well being organizations, and drug producers reinforce the analysis and remedy of extremely infectious illnesses reminiscent of Influenza, SARS-CoV-2, and Mycobacterium tuberculosis (TB). In contrast to same old gadgets for accumulating and transporting virus samples, PrimeStore® MTM is the primary molecular shipping software that may safely deactivate pathogens and stabilize RNA and DNA, permitting enhanced level of care and ambient temperature shipping for laboratory based totally molecular trying out and characterization.

Longhorn’s lead vaccine candidate, LHNVD-105 is an adjuvanted composite peptide common influenza vaccine that goals more than one conserved epitopes around the HA, NA, and M2e areas at the virus. LHNVD-105 is formulated with two composite peptides and blended with the United States Military’s Liposomal Adjuvant (ALFQ).


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