Morning8 Jan 2022 10:20
Morning.Don’t think this has been posted.
Can’t claim any credit for finding this as posted on another platform but taken from Pharmafile Winter 21 as part of a bigger article.
“The pandemic has highlighted the growing need for DNA vaccines, in multiple areas including infectious diseases and cancer. Looking ahead to the future of healthcare during the precariousness of a pandemic, we spoke to Professor Lindy Durrant, CEO of Scancell, which develops immunotherapies simulating the body’s own immune system response. Scancell believe that DNA vaccines are one component of tackling diseases, believing the vaccines “give more sustained production of antigen which should lead to longer term protection than RNA vaccines.” This vaccination form is significant for the increasing demands and needs of global healthcare: “Dendritic cell-targeting DNA vaccines are cheap and easy to manufacture, and have long term stability at -20°C. They can be rapidly adapted to give protection against both infectious disease and cancer. They can be used for repeated injections or for injections for other viruses, whereas viral vector-based vaccines can only be used twice before the immunity to the vector overwhelms the response to the inserted virus.” For the many and varied needs presented by patients of infectious disease, this is significant.
Scancell uses a human monoclonal antibody to target cells that stimulate immune system response. This vaccine can be customised against a specific disease – a promising feature considering the changing nature of
disease we have witnessed over the past year, and even the past month. This has
the potential to change the current impact
of vaccination. “A vaccine encoding both nucleocapsid protein linked to a modified Fc and receptor-binding domain should stimulate long-term memory B and T cells, and should give sustained protection over several years. This will give less opportunities for variants to arise and prevent people from having to be vaccinated every six months.
Scancell shared that its vaccine “targets antigens to dendritic cells to give more
potent T cell responses that lead to long-term memory, and still give high titre neutralising antibody responses. The nucleocapsid protein is more highly conserved, giving better protection against variants.”
As for the future, Professor Durrant looks forward to “simpler delivery systems for DNA vaccines. Currently we use a mechanical needle free device which is acceptable, but a simple injection would be more reasonable”. Durrant also hopes for “better investment
in vaccines that give broad protection (i.e. all coronaviruses – not just COVID-19), and sustained protection for 5-10 years should be developed now so they can be rapidly adapted when the next pandemic hit“
Just thought a very good article.