Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Inovio Pharmaceutical's DNA Vaccine for the MERS Virus Induces Robust Immune Response

Published: Monday, December 02, 2013
Last Updated: Monday, December 02, 2013
Bookmark and Share
No vaccine exists for the MERS virus that has killed 42% of those infected.

Inovio Pharmaceuticals, Inc. announced that preclinical testing of a DNA synthetic vaccine for the virulent Middle East Respiratory Syndrome coronavirus (MERS) induced robust and durable immune responses, demonstrating the potential for a SynCon® DNA vaccine to prevent and treat this deadly virus.

Since 2012, when the virus was first identified, 153 cases from nine Middle Eastern countries have been reported and, alarmingly, 42% of these cases have been fatal. MERS is similar to the SARS virus which infected 8,000 people several years ago. MERS differs from SARS in that it appears to be less contagious, but MERS is almost five times as fatal as SARS, which killed 10% of those infected. There is no vaccine or effective treatment for MERS.

In this study, DNA vaccine constructs targeting multiple MERS antigens were generated using Inovio's SynCon® vaccine platform. These SynCon constructs were administered via Inovio's CELLECTRA® electroporation-based delivery technology. The vaccine constructs were observed to induce strong neutralizing antibodies and broad CD8+ T cells in mice. These findings are vital given the importance of neutralizing antibodies in preventing infection and the role T cells play in clearing infection by killing cells that harbor the virus.

Dr. J. Joseph Kim, Inovio's President and CEO, said, "Our SynCon® platform has again generated a synthetic vaccine candidate that shows promise for providing a treatment where there is none. With human data showing the powerful killing effect of T cells generated by our vaccine for HIV and our therapy for HPV-associated cervical dysplasia and various cancers, we look forward to providing Inovio's answer to MERS, a deadly infectious disease that has unknown pandemic potential. What's even more impressive about our candidate vaccine is that it is designed with the goal to universally protect against multiple strains of MERS, which has been shown to have diverse genetic variants. With appropriate external funding, this product could become an effective shield against this deadly virus."

To begin the study, a consensus MERS "spike" protein vaccine construct was created based on multiple strains of the MERS virus.  Inovio's MERS DNA vaccine was immunogenic in mice and seroconversion, or the development of detectable specific antibodies in the blood as a result of immunization, was observed in all animals. Furthermore, the antibodies generated by the vaccine in 100% of mice (20 of 20) were able to neutralize or completely block actual infection of MERS virus in the cells, demonstrating the protective potential of this vaccine. In contrast, none of the unvaccinated mice in the control group (10) generated neutralizing antibodies.

Researchers also observed that vaccination was highly T-cell immunogenic, generating robust and broad T cell responses as extensively analyzed by the standardized T cell ELISPOT assay. The vaccine produced robust CD8+ and CD4+ T cell responses against multiple epitopes of the MERS spike protein. This increased diversity and magnitude of cellular responses may be critical for effectively mitigating MERS infection.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,300+ scientific posters on ePosters
  • More Than 4,900+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Inovio Pharmaceuticals' Potent hTERT DNA Cancer Vaccine Shows Potential to Reduce Tumors and Prevent Tumor Recurrence
Mice and monkey study demonstrates robust and broad immune responses.
Thursday, July 25, 2013
Inovio Pharmaceuticals & U.S. Army Receive $3.5 Million Biodefense Grant
Inovio to advance painless device to simultaneously deliver multiple vaccines using electroporation technology.
Thursday, April 11, 2013
PATH Malaria Vaccine Initiative and Inovio Pharmaceuticals Partner
Follow-on agreement will lead to clinical trials.
Wednesday, January 09, 2013
Inovio Pharmaceuticals CMV Synthetic Vaccine Constructs Generate Strong and Broad T-Cell Responses in Preclinical Study
No vaccine or cure exists for virus that can be life threatening to infants, immune compromised, and transplant patients.
Wednesday, November 28, 2012
Scientific News
Shedding Light on HIV Vaccine Design
Broadly speaking - Mathematical modelling of host-pathogen coevolution sheds light on HIV vaccine design.
AACC 2016 Sees Clinical Chemistry Labs Drive Precision Medicine Offerings
Biomarker assays to enable precision medicine and risk assessment, mass spec-based tests designed for use in clinical labs large and small, and liquid biopsy technology captured the spotlight at the AACC annual meeting.
Automated Patch Clamping Trends
Learn more about current practices, preferences and metrics in ion channel drug screening using APC technology.
Lab-on-a-Stick: Miniaturised Clinical Testing For Fast Detection Of Antibiotic Resistance
A portable power-free test for the rapid detection of bacterial resistance to antibiotics has been developed by academics at Loughborough University and the University of Reading.
Genetic Ancestry of Cultivated Strawberry Unravelled
UNH scientists constructed a linkage map of the seven chromosomes of the diploid Fragaria iinumae, which allows them to fill in a piece of the genetic puzzle about the eight sets of chromosomes of the cultivated strawberry.
Progress In Vaccination Against Vespid Venom
Researchers at the Helmholtz Zentrum München and the Technical University Munich have presented a method which facilitates a personalised procedure for wasp allergy sufferers.
New Drug Target for Inflammatory Disorders
Penn study finds enigmatic molecules maintain equilibrium between fighting infection and inflammatory havoc.
Breast Cancer Cells Found To Switch Molecular Characteristics
Spontaneous interconversion between HER2-positive and HER2-negative states could contribute to progression, treatment resistance in breast cancer.
Mechanisms of Calcium Blockers
Researchers describe how the fundamental mode of action of two distinct chemical classes of calcium channel blockers differs.
Some Breast Cancer Patients With Low Genetic Risk Could Skip Chemotherapy
Genetic test can help predict survival and guide treatment options.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,300+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,900+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!