John Diffley, Associate Research Director, the Francis Crick
Institute, has been awarded the 2016 Louis-Jeantet Prize for
Medicine. This award distinguishes those conducting fundamental
biological research that is expected to be of considerable
significance for medicine.
Andrea Ballabio, founder and director of the Telethon
Institute of Genetics and Medicine (TIGEM), Italy, was also awarded
this prize.
The Louis-Jeantet Foundation grants the sum of CHF 700'000
for each of the two prizes, of which CHF 625'000 is for the
continuation of the prize winner's research and CHF 75'000 for
their personal use.
John Diffley received the Prize for his contributions to
understanding how DNA replication, a process essential to life,
initiates.
When a cell in an organism divides to yield two identical
daughter cells, its DNA is first duplicated, or "replicated", as
two identical copies. John Diffley has become one of the worldwide
leaders in the study of the mechanisms governing this process of
duplication. His work has allowed us to understand how DNA
replication is initiated, and how it is subsequently regulated
throughout the cell cycle and in response to DNA damage. Since any
mistakes in this process can lead to genetic mutations causing
tumours, this research could be significant in the fight against
cancer.
John Diffley will use the prize money to conduct further
research into the mechanisms involved in the replication of
chromosomes in yeast and human cells.
The Award Ceremony will be held in Geneva (Switzerland) on
Wednesday, 20 April 2016.
The Louis-Jeantet Prize For Medicine
Every year, the Louis-Jeantet Prize for Medicine distinguishes
leading-edge researchers who are active in the Council of Europe
member countries. As one of the best-endowed awards in Europe, the
Louis-Jeantet Prize for Medicine fosters scientific excellence. It
is not intended as the consecration for work that has been
completed, but to finance the continuation of innovative research
projects with high added value and of more or less immediate
practical significance in the treatment of diseases.
John Diffley
John Diffley was born 1958 in New York (USA) and studied in his
home town (New York University) where he received his BA and PhD.
Following a period as a post-doctoral fellow at Cold Spring Harbor
Laboratory in New-York, he left for the UK in 1990. He continued
his research at the Clare Hall Laboratories, where he became the
director in 2006. In the same year he was made Deputy Director of
the London Research Institute, and in 2015 became Associate
Research Director at the Francis Crick Institute.
John Diffley was elected as a member of the European Molecular
Biology Organization (EMBO) in 1998. He is also a Fellow of the
Royal Society, of the American Association for the Advancement of
Science, the Academia Europaea, the Academy of Medical Sciences and
the European Academy of Cancer Sciences. In 2003 he won the
American Paul Marks prize for cancer research.
The start of genome duplication
Cell duplication, in which a cell becomes two daughter cells, is
essential for all life, from bacteria to human beings. The first
stage of this process involves the copying, or replication, of the
DNA of the mother cell in a precisely regulated manner to make
exactly two complete copies, one for each of the daughter cells.
This "once per cell cycle" genome duplication is crucial for
organisms to maintain a stable genetic composition during their
lives and through evolution. In human cells, this means the precise
duplication of over a billion base pairs each time a cell divides.
To do this, replication initiation from 50-100,000 chromosomal
sites, known as "replication origins", must be tightly coordinated
to ensure no origin is used more than once in a cell cycle.
John Diffley enjoys worldwide recognition for his work on the
mechanism driving the initiation of DNA replication, using yeast,
and human cells for his research. He and his team used chromosomal
replication origins to characterise and ultimately reconstitute the
protein machinery required to initiate DNA replication once in each
cell cycle.
Any error in DNA replication or its initiation can result in
genome instability that may contribute to the development of
cancers. John Diffley's research work could therefore have
significant implications for cancer biology.