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Applied DNA Sciences Updates on COVID-19 Collaboration with Takis Biotech, 4 Preclinical LinearDNA™ Vaccine Candidates Designed

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Applied DNA Sciences Inc. (NASDAQ: APDN) (“Applied DNA” or the “Company”) a leader in Polymerase Chain Reaction (PCR)-based DNA manufacturing for product authenticity, traceability solutions, nucleic acid-based biotherapeutic development, and liquid biopsies for cancer diagnostics, and Takis Biotech (“Takis”), a company focused on the development of cancer vaccines, and founded by scientists from Merck Research Laboratories, announced today that the design of 4 DNA vaccine candidates will be produced for preclinical animal testing via the Company’s proprietary PCR-based DNA (“LinearDNA”) manufacturing systems.

The companies’ announcement follows their statement on February 7, 2020 announcing an expanded Joint Development Agreement (JDA) between the Company’s majority-owned subsidiary, LineaRx, Inc. and Takis Biotech to include the preclinical development of a PCR-produced LinearDNA vaccine against COVID-19.

“Since expanding our JDA to include the pursuit of a COVID-19 vaccine, the virus has appeared on almost every continent. We expect delivery of the 4 preclinical vaccine candidates from Takis in this month. Within weeks of arrival we expect to immediately scale up PCR-based production of each vaccine candidate and ship them back to Takis who will determine each vaccine’s relative abilities to provoke an immune response in vaccinated mice,” stated Dr. James A. Hayward, president and CEO of Applied DNA and LineaRx.

The two firms have designed 4 preclinical vaccines on the basis of the “Spike” protein structure (the proteins responsible for the “crown” on the virus surface, and from whence its name derives). It is the Spike protein that enables uptake of the coronavirus, by binding to specific receptors on the host cells. One of the 4 candidate vaccines is the entire spike gene; the remaining 3 are variants based upon epitope mapping (identifying the likely antigenic portions of the protein) and assembling the corresponding parts of the ‘S’ gene into a new synthetic LinearDNA gene, and codon optimization (to ensure the new LinearDNA vaccine genes are efficiently expressed as proteins, once the genes have been delivered to a small percentage of the nuclei of the patient’s muscle cells.) Additionally, Applied DNA has proprietary means, which are the subject of pending patent applications, for genetic ensembles that increase the expression, folding efficiency and compartmentalization of proteins that can be built into the putative vaccine constructs if the results obtained in animal studies warrant this consideration.

Continued Dr. Hayward, “Our patented and proprietary platform for the production of LinearDNA not only empowers rapid development and large-scale production, but we believe it has the potential to yield an effective vaccine with fewer risks than other currently utilized DNA production platforms. As is typical for RNA viruses, coronaviruses mutate at rapid rates that require constant surveillance. We believe that one of the many benefits of PCR-produced LinearDNA is the rapidity at which a putative vaccine can be revised to accommodate mutational drift.”

Dr. Luigi Aurisicchio, CEO and CSO of Takis Biotech, stated: “Our original collaboration under the JDA on a pan cancer vaccine that will soon enter trials for the treatment of companion animals has already proven the ability of PCR-produced LinearDNA to induce powerful immune responses in animal models. For the induction of antibodies that can neutralize COVID-19, it is essential to use reliable, effective technologies that can be quickly adapted in the face of shifting pathogens, and we believe that is the advantage that Applied DNA’s platform affords us over traditional vaccine development and other modern DNA-based vaccines. This global emergency requires a swift response.”

Under the terms of the amended JDA, Takis will use the scaled-up LinearDNA synthetic genes produced by Applied DNA for each of the four putative vaccines to inoculate mice, whose sera will be tested for the presence of antibodies that bind to the purified Spike proteins. Those positive candidates that bind to Spike will be tested for their ability to neutralize COVID-19 by preventing uptake of the virus in cells in culture and in animal models.

The potential advantages posed by PCR-produced LinearDNA vaccines, as opposed to the circular DNA obtained from more traditional plasmid sources, include the speed of production, the absence of antibiotics and their resistance genes, the purity of the DNA, the simplicity of design, the powerful immunogenicity proved in a prior LinearDNA vaccine, the absence of any bacterial contaminants and the fact that the vaccine gene is effective without insertion into the patient’s genome.

Applied DNA and Takis make clear that no commercial partner has been identified to take the coronavirus vaccine to market nor is there any indication that the Company’s applications to develop countermeasures would be approved by regulators.

About Takis Biotech.

Takis is a Biotech Company created by a group of scientists from Merck Research Laboratories (MRL). The group has more than 15 years of experience and an established track record in drug discovery in Oncology and is recognized for the conception and implementation of a number of innovative technologies. One of the main assets of Takis is the expertise in in vivo electro-gene-transfer, which can be used for a variety of clinically useful applications, from vaccine development to somatic gene therapy. Takis pipeline include four Cancer Vaccine candidates based on this technology. Takis is also actively involved in the generation of humanized monoclonal antibodies for use in Oncology and Infectious Diseases.

Visit www.takisbiotech.it for more information.

About Applied DNA Sciences, Inc.

Applied DNA is a provider of molecular technologies that enable supply chain security, anti-counterfeiting and anti-theft technology, product genotyping, diagnostics and pre-clinical nucleic acid-based therapeutic drug candidates.

Visit adnas.com for more information. Follow us on Twitter and LinkedIn. Join our mailing list. Common stock listed on NASDAQ under the symbol APDN.

LinearDNA™ is a trademark of Applied DNA Sciences, Inc

Forward-Looking Statements

The statements made by Applied DNA in this press release may be “forward-looking” in nature within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. Forward-looking statements describe Applied DNA’s future plans, projections, strategies and expectations, and are based on assumptions and involve a number of risks and uncertainties, many of which are beyond the control of Applied DNA. Actual results could differ materially from those projected due to the possibility of a failure to make timely payment on its outstanding secured convertible notes and resulting enforcement by noteholders of remedies on collateral which includes substantially all of Applied DNA’s assets, its history of net losses, limited financial resources, limited market acceptance, the fact that there has never been a commercial drug product utilizing PCR-produced DNA technology approved for therapeutic use, the uncertainties inherent in research and development, future clinical data and analysis, including whether any of Applied DNA’s or its partners product candidates will advance further in the preclinical research or clinical trial process, including receiving clearance from the U.S. Food and Drug Administration or equivalent foreign regulatory agencies to conduct clinical trials and whether and when, if at all, they will receive final approval from the U.S. FDA or equivalent foreign regulatory agencies, and various other factors detailed from time to time in Applied DNA’s SEC reports and filings, including our Annual Report on Form 10-K filed on December 12, 2019 and our subsequent quarterly report on Form 10-Q filed on February 6, 2020, and other reports we file with the SEC, which are available at www.sec.gov. Applied DNA undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date hereof or to reflect the occurrence of unanticipated events, unless otherwise required by law.

Web: www.adnas.com

Twitter: @APDN

Contact information

Investors:
Sanjay M. Hurry

LHA Investor Relations
212-838-3777
shurry@lhai.com

Program contact:
Brian Viscount
Applied DNA
631-240-8877
brian.viscount@adnas.com

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