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Katalin Karikó, Drew Weissman, Philip Felgner, Uğur Şahin, Özlem Türeci, Derrick Rossi and Sarah Gilbert Princess of Asturias Award for Technical & Scientific Research 2021

Katalin Karikó, Drew Weissman, Philip Felgner, Uğur Şahin, Özlem Türeci, Derrick Rossi and Sarah Gilbert

The year 2020 began with the onset of a pandemic that changed daily life and the world economy and ended with an extraordinary demonstration of the ability of science to deal with the problem, thanks to the first vaccines against the SARS- CoV-2 coronavirus, the cause of the COVID-19 pandemic.

Katalin Karikó, Drew Weissman, Philip Felgner, Uğur Şahin, Özlem Türeci, Derrick Rossi and Sarah Gilbert have independently contributed to the development of some of the vaccines approved to date, all based on different strategies, but which have protein S as a common target. This protein is present on the surface of the virus and facilitates its attachment to and entry into cells. Philip Felgner is a pioneer in the use of protein microarrays to understand in detail how the immune system responds to different infectious microorganisms and to identify the best antigens for use in vaccines and diagnostic tests. Moreover, in 1985 he discovered and developed lipofection technology, a strategy that consists in introducing genetic material into a liposome so that it can be delivered to and introduced into cells. This technology is present in lipid nanoparticles that serve as delivery vehicles for messenger RNA (mRNA) vaccines against COVID-19. On the other hand, Katalin Karikó, a pioneer in the study of the therapeutic possibilities of this molecule, is considered the ‘mother’ of this type of vaccine. Together with immunologist Drew Weissman, she began working on mRNA-based vaccines and saw that this molecule caused strong inflammatory reactions because the immune system detected it as an intruder. Both managed to introduce small changes in the structure of the RNA so that these reactions did not take place. This breakthrough laid the foundation for the use of RNA therapies and its results allowed Uğur Şahin and Özlem Türeci (BioNTech) and Derrick Rossi (Moderna) to develop the mRNA-based vaccines that have currently been approved against COVID-19 and whose use can be extended to different areas of medicine such as cancer, autoimmune diseases and tissue regeneration. Finally, vaccinologist Sarah Gilbert is another of the researchers who have worked to obtain a vaccine against SARS-CoV-2. The vaccine she developed, Oxford/AstraZeneca, is another of those approved by European authorities to date and is based on an adenovirus that is used as a vector to introduce the DNA encoding protein S into cells, thus stimulating the immune response.

 

 

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