New tech said to block viruses

A University of Louisville news release says that researchers have developed a technology that looks as though it can block the Covid virus and other viruses from entering human cells.

The researchers are seeking additional funding. One would think both state and federal agencies would be urgently interested in fast-tracking this research, assuming it passes preliminary inspection of other scientists.

Press release:

University of Louisville researchers have developed a technology that is believed to block the novel coronavirus Sars-Cov-2 from infecting human cells.

The technology is based on a piece of synthetic DNA – an “aptamer” –  which targets and binds with a human protein called nucleolin. Early tests show that this aptamer may stop viruses, including novel coronavirus, from “hijacking” nucleolin to replicate inside the body.  

U of L is seeking to fast-track development, including application to the Food and Drug Administration for approval to start treating patients seriously affected with Covid-19.  

The aptamer was discovered by U of L’s Paula Bates, John Trent and Don Miller, who have applied it in a variety of ways, most notably as a potential therapeutic drug against multiple types of cancer. With the current global pandemic of coronavirus and the Covid-19 disease it causes, Bates partnered with fellow researcher Kenneth Palmer to apply the technology once again.

“Like many scientists, as soon as I heard about the new coronavirus, I wanted to help and started to think about how my area of research might intersect with coronavirus research efforts,” said Bates, a professor of medicine. “I am fortunate to be at UofL, which is one of the few places in the country where we have the facilities to do experiments using the Sars-Cov-2 virus.”

Palmer, director of U of L’s Center for Predictive Medicine for Biodefense and Emerging Infectious Diseases (CPM), conducted proof-of-concept experiments showing the aptamer was effective against the virus at doses previous research has shown to be safe in patients. Palmer also is working on another potential Covid-19 treatment, Q-Griffithsin, developed at U of L in partnership with the National Cancer Institute and the University of Pittsburgh.

The CPM houses U of L’s Regional Biocontainment Laboratory, one of only 12 regional and two national biocontainment labs in the United States and the only one in Kentucky. Established with support from the NIH to conduct research with infectious agents, the lab includes Biosafety Level 3 facilities built to the most exacting federal safety and security standards. The stringently secure facilities protect researchers and the public from exposure to the pathogens being investigated.

U of L is providing financial support for Covid-19 research, but additional funds are needed to continue the work over time.