Kenneth Harrap
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Professor Kenneth Reginald Harrap (1931-2017) was a British oncological biochemist.


Early life and education

Harrap was born in
Streatham Streatham ( ) is a district in south London, England. Centred south of Charing Cross, it lies mostly within the London Borough of Lambeth, with some parts extending into the neighbouring London Borough of Wandsworth. Streatham was in Surrey ...
, London, on 20 November 1931. He was educated at Woking Grammar School and George Green's School, London. He graduated with a BSc in Chemistry from the University of London, then worked for a while as an analytical chemist at Hopkins & Williams. In 1964 He spent a sabbatical period as a visiting fellow at the Children's Cancer Research Foundation in
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
, United States. He received a DSc in Pharmacology and Biochemistry from London University in 1977.


Career

The early part of his career was directed at identifying biochemical abnormalities of cancer cells. In 1956 he moved to the
Institute of Cancer Research The Institute of Cancer Research (the ICR) is a public research institute and a member institution of the University of London in London, United Kingdom, specialising in oncology. It was founded in 1909 as a research department of the Royal Ma ...
's Chester Beatty Research Institute in London. He was promoted to Head of the Department of Applied Biochemistry in 1970, Head of the Department of Biochemical Pharmacology in 1977, Chairman of the Drug Development Section in 1982, and Director of the CRC's Centre for Cancer Therapeutics in 1994. Harrap chaired the British Association for Cancer Research from 1987 to 1990. He was elected a
Fellow of the Royal Society of Chemistry Fellowship of the Royal Society of Chemistry (FRSC) is one of the most prestigious awards conferred by the Royal Society of Chemistry (RSC) in the United Kingdom. Existing Fellows include award winning scientists and Nobel prize winners. FRSC awa ...
, and received the American Association for Cancer Research's Bruce F. Cain award and the Barnett Rosenberg Award, both in 1995. He was made a
Commander of the Order of the British Empire The Most Excellent Order of the British Empire is a British order of chivalry, rewarding valuable service in a wide range of useful activities. It comprises five classes of awards across both civil and military divisions, the most senior two o ...
(CBE) in the
1998 New Year Honours The New Year Honours 1998 for the United Kingdom, Barbados, Grenada, Papua New Guinea, the Solomon Islands, Tuvalu, Saint Vincent and the Grenadines, Belize, Antigua and Barbuda, and Saint Christopher and Nevis were announced on 30 December 1997 ...
, "for services to cancer research". He is credited with the discovery of
Carboplatin Carboplatin, sold under the brand name Paraplatin among others, is a chemotherapy medication used to treat a number of forms of cancer. This includes ovarian cancer, lung cancer, head and neck cancer, brain cancer, and neuroblastoma. It is a ...
, JM 216 ( Satraplatin), and AMD 473.


Platinum based anti-cancer agents

A collaboration with
Johnson Matthey Johnson Matthey plc is a British multinational speciality chemicals and sustainable technologies company headquartered in London, England. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. History Early year ...
established by Professor Tom Connors was expanded into an extensive search for an effective but less toxic therapy to replace
Cisplatin Cisplatin is a chemical compound with chemical formula, formula ''cis''-. It is a coordination complex of platinum that is used as a chemotherapy medication used to treat a number of cancers. These include testicular cancer, ovarian cancer, c ...
. JM8 was identified and successfully launched as Carboplatin (Paraplatin) by
Bristol Myers Squibb The Bristol-Myers Squibb Company, Trade name, doing business as Bristol Myers Squibb (BMS), is an American multinational pharmaceutical company. Headquartered in Princeton, New Jersey, BMS is one of the world's largest pharmaceutical companies ...
in 1986. This achievement was recognized in 1991 with the Queens Award for Technological Achievement, awarded jointly to the Drug Development Section at the Institute of Cancer Research, of which Harrap was Head, to the Royal Marsden Hospital, and to Johnson.


Antimetabolite anticancer drugs

Harrap's interest in
antimetabolite An antimetabolite is a chemical that inhibits the use of a metabolite, which is another chemical that is part of normal metabolism. Such substances are often similar in structure to the metabolite that they interfere with, such as the antifolat ...
s as cancer drugs led to a collaboration with
AstraZeneca AstraZeneca plc () (AZ) is a British-Swedish multinational pharmaceutical and biotechnology company with its headquarters at the Cambridge Biomedical Campus in Cambridge, UK. It has a portfolio of products for major diseases in areas includi ...
on the development of
thymidylate synthase inhibitor Thymidine monophosphate (TMP), also known as thymidylic acid (conjugate base thymidylate), deoxythymidine monophosphate (dTMP), or deoxythymidylic acid (conjugate base deoxythymidylate), is a nucleotide that is used as a monomer in DNA. It is an ...
s.
Raltitrexed Raltitrexed (Thaltitrexed, Tomudex, TDX, ZD 1694) is an antimetabolite drug used in cancer chemotherapy. It is an inhibitor of thymidylate synthase, and is manufactured by AstraZeneca. Uses Used in treatment of colorectal cancer since 1998, it ...
was developed and launched as Tomudex. Building on the work done by Harrap's group,
thymidylate synthase Thymidylate synthase (TS) () is an enzyme that catalyzes the conversion of deoxyuridine monophosphate (dUMP) to deoxythymidine monophosphate (dTMP). Thymidine is one of the nucleotides in DNA. With inhibition of TS, an imbalance of deoxynucleot ...
has continued to be a target of interest for the development of anti cancer drugs. One of these, BGC 945, has been taken into clinical trial at the
Royal Marsden The Royal Marsden Hospital is a specialist National Health Service oncology hospital in London based at two sites in Brompton, in Kensington and Chelsea, and Belmont in Sutton. It is managed by The Royal Marsden NHS Foundation Trust and supp ...
, and licensed to Carrick for further clinical development.


Retirement

Harrap became emeritus professor of pharmacology at the University of London, a distinguished emeritus fellow of the Cancer Research Campaign, and an associate and visiting scientist at the Institute of Cancer Research on his retirement in 1997. He was profiled as the "Cover Legend" in volume 58, issue 21 (November 1998) of the journal ''
Cancer Research Cancer research is research into cancer to identify causes and develop strategies for prevention, diagnosis, treatment, and cure. Cancer research ranges from epidemiology, molecular bioscience to the performance of clinical trials to evaluate ...
'', which featured his portrait photograph on its front page and described him as "one of Britain's top leaders in the field of cancer chemotherapy". Harrap joined his wife Dr. Beverley Weston to form Weston and Harrap Consulting, advising start up and small biotech companies on cancer drug development and commercial potential. He died on 9 February 2017. He was survived by his wife, two daughters, and grandchildren.` The University of London's Harrap Chair of Pharmacology and Therapeutics is endowed in his honour. A
blue plaque A blue plaque is a permanent sign installed in a public place in the United Kingdom, and certain other countries and territories, to commemorate a link between that location and a famous person, event, or former building on the site, serving a ...
commemorating the work of the Institute for Cancer Research, including the discovery of Carboplatin, was erected by the
Royal Society of Chemistry The Royal Society of Chemistry (RSC) is a learned society and professional association in the United Kingdom with the goal of "advancing the chemistry, chemical sciences". It was formed in 1980 from the amalgamation of the Chemical Society, the ...
in 2018. Beverley Weston was one of the speakers at the event.


References


External links

* {{DEFAULTSORT:Harrap, Kenneth 1931 births Place of birth missing 2017 deaths Commanders of the Order of the British Empire Fellows of the Royal Society of Chemistry People from Streatham