Announcement of the Prince Mahidol Award 2021

On November 15th, 2021, Professor Dr. Prasit Watanapa, Dean of the Faculty of Medicine, Siriraj Hospital, Mahidol University, in the capacity of Vice President of the Prince Mahidol Award Foundation, Mr. Tanee Sangrat, Director-General of the Department of Information, Ministry of Foreign Affairs of Thailand, in the capacity of the Chairman of the Sub-Committee on Public Relations of the Prince Mahidol Award Foundation, and Professor Vicharn Panich, Chairman of the International Award Committee of the Prince Mahidol Award Foundation, held a joint press conference to announce the “30th Prince Mahidol Award for 2021″ at the Prince Mahidol Memorial Room, 2nd Floor, Syamindra Building, Siriraj Hospital.

This year, the Prince Mahidol Award in the field of Medicine is awarded to Associate Professor Katalin Karikó, Ph.D., Professor Drew Weissman, M.D., Ph.D., and Professor Pieter Cullis, Ph.D.

There were 86 nominations from 35 countries. The Scientific Advisory Committee carefully screened all candidates from 2019 – 2021 and subsequently submitted a shortlist of candidates to the International Award Committee, which made a recommendation to the Board of Trustees. H.R.H. Princess Maha Chakri Sirindhorn presided over the meeting of the Board of Trustees held on October 26th, 2021, during which the final decision on the Prince Mahidol Award 2021 was made.

Prince Mahidol Award Laureate 2021

in the Field of Medicine

Katalin Karikó, Ph.D.
Senior Vice President,

BioNTech RNA Pharmaceuticals, Germany

Adjunct Associate Professor,

Perelman School of Medicine,
University of Pennsylvania, Philadelphia, USA.

Hungary/USA

and

Drew Weissman, M.D., Ph.D.

Director of Vaccine Research,

Infectious Diseases Division
Professor, Department of Medicine,

Perelman School of Medicine,

University of Pennsylvania, Philadelphia, USA.
USA

Associate Professor Katalin Karikó received her Ph.D. from University of Szeged, Hungary.

Professor Drew Weissman received his M.D. and Ph.D. from Boston University, USA, before attending the training program with Dr. Anthony Fauci, who received the Prince Mahidol Award in the field of medicine in 2013, at the National Institutes of Health, Maryland, USA.

Assoc. Prof. Karikó and Prof. Weissman have been working side by side in developing mRNA technology and its applications in medicine. In 2006, they discovered that modification of nucleosides in mRNA could reduce cellular reactions toward foreign RNA. This was an important step in the utilization of mRNA technology. Foreign RNA is naturally recognized by cellular anti-viral machinery, which suppresses translation of mRNA and induces inflammation. These reactions were the main obstacle preventing the applications of mRNA in the prevention and treatment of diseases. This and subsequent studies of Assoc. Prof. Karikó and Prof. Weissman have led to the use of pseudouridine in mRNA production and the invention of the purification method for pseudouridine-containing mRNA. These are the critical basis for mRNA vaccine development. Prof. Karikó and Prof. Weissman have also played an important role in the rapid development of the COVID-19 mRNA vaccine.

The achievement of Assoc. Prof. Dr. Karikó and Prof. Weissman have led to the rapid availability of the COVID-19 mRNA vaccine, which has saved millions of lives and has become an important tool for controlling the COVID-19 pandemic around the world.

Pieter Cullis, Ph.D.

Professor, Department of Biochemistry & Molecular Biology,

University of British Columbia, Vancouver

Canada

Professor Pieter Cullis received his Ph.D. from the University of British Columbia and continued his research career there in lipid biochemistry.

Prof. Cullis is a pioneer in lipid nanoparticles, which have been used for various applications in medicine, such as delivering anticancer drugs to cancer tissues without causing too much toxicity in normal tissues. The most remarkable type of lipid nanoparticles developed by Prof. Cullis is lipid nanoparticles with ionizable cationic lipid. These lipid nanoparticles have no charge at neutral pH but become positively charged at low pH. Because of the absence of positive charge, the lipid nanoparticles are not toxic to cells. When they are taken up by cells into endosomes, the acidic pH in endosome turns the neutral lipid into positively charged lipid, which causes fusion to negatively charged cellular membrane. This membrane fusion delivers the content of the lipid nanoparticles into cytoplasm of the cells. This technique has been successfully employed to develop the delivery system of mRNA vaccines, which are being used to control the COVID-19 pandemic.

The achievement of Prof. Cullis not only made COVID-19 mRNA vaccines possible but has also created a way to safely deliver nucleic acid into cells, which opened up possibilities for various applications of nucleic acid technology for the prevention and treatment of many diseases in the future.