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Vol. 26, Issue 12, 1174-1174, December 1998
Department of Drug Metabolism and Pharmacokinetics, DuPont Pharmaceuticals Company
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Article |
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Anthony received
his bachelor of science degree in agricultural chemistry from the
National Taiwan University in 1958. After his education in Taiwan, he
immigrated to the United States, where he obtained his doctoral degree
in biochemistry at the University of North Carolina. Although he is
renowned for his research on the cytochrome P450 systems, few are aware
that Anthony began his publication career as an undergraduate (Wai
et al., 1960
).
In 1966, Anthony joined Dr. M. J. Coon at the University of Michigan
to pursue postdoctoral training. Here he tackled and succeeded in
isolating the membrane-bound enzyme system responsible for the
-oxidation of fatty acids. Later he was to learn that he had
solubilized and reconstituted the cytochrome P450 system, a system that
had eluded isolation attempts by many of the world's best biochemists.
The publication of this work was to have impact around the world (Lu
and Coon, 1968
). This was the first demonstration that this enzyme
could be separated from its membrane without loss of activity. This
seminal contribution was the passageway through which the early
biochemical characterization of this system would take place. The
isolation of other forms of this enzyme, the protein structural
characterizations, studies on the interaction of the components of this
electron transport system, the substrate selectivities of the
cytochromes, and the forms involved in the metabolism and toxicity of
substrates could only occur after a method to prepare pure enzymes was
defined. This publication has become a citation classic
not bad
for a postdoc (Lu, 1992
).
In 1970, Anthony moved to New Jersey to pursue a new job at Hoffmann La Roche. The Roche years were highly productive ones. Here, with Allen Conney and his team, Anthony expanded on his Michigan research, providing physical evidence for the existence of more than one form of cytochrome P450, the physical and substrate selectivities of these forms, the electron transport and physical association of components of this system, and the role of one of these forms in the carcinogenicity of polycyclic aromatic hydrocarbons. The Roche years were also the period in which epoxide hydrase and azoreductase, enzymes important in the metabolism of aromatic epoxides and azo dyes, were isolated and characterized.
In 1978, Anthony moved "uptown" to Rahway, New Jersey, and the
Merck Research Laboratories. He brought a group from Hoffmann La
Roche and founded the Biochemical Toxicology Group in the
Department of Animal Drug Metabolism at the Merck Research
Laboratories. Their mission was to assess the safety to humans of drug
residues in the meat products from animals that had been treated with
medications. He thought this would be a straightforward task until his
first day on the job at Merck when he was told that the "drug" was
a nitroimidazole
a potential carcinogen. Merck researchers had already been unsuccessfully working on this safety question for 15 years, and
Food and Drug Administration (FDA) regulations required that there be
zero nitroimidazole residues present in the meats. Zero is too
small to measure and, therefore, impossible to prove (probably the
conclusion also reached by those Merck researchers). The group committed 8 years of research to the solution of this drug-residue problem. This research culminated in the publication of a series of
research articles, one of which is a reference now often cited by FDA
as an exemplary example of research in this area (Lu et al.,
1988
). Through Anthony's leadership, his group made important contributions to the FDA regulations on drug residues in food-producing animals and to the registrations of revolutionary new medicines: ivermectin, lovastatin, famotidine, losartan, and indinavir.
Anthony's career has been an extraordinarily productive one, with over 220 publications, the registration of several important medicines, a lasting partnership with his wife Lillian, two accomplished daughters, and the formation of innumerable relationships with friends and colleagues. He is the recipient of a number of honors, among them: the B. B. Brodie Award in Drug Metabolism from ASPET; the Robert A. Scala Award in Toxicology from the Environmental and Occupational Health Sciences Institute, Rutgers University; and the Centennial Alumnus Distinguished Visiting Professor Award from the Department of Biochemistry, University of North Carolina. In speaking with Anthony, it is obvious, however, that even more than his scientific accomplishments, he is most proud of his associations with his colleagues. All of us who know Anthony have been molded by his excitement for research, his open and compassionate desire to help others, and his humility and integrity. We are proud to be his friends and colleagues.
Retirement from Merck is simply a stepping-stone to another career for Anthony. He will continue his research as an adjunct professor in the Department of Chemical Biology in the Rutgers University School of Pharmacy and pursue his desire to teach the next generation of scientists in China and in the United States.
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Footnotes |
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1 Former Hoffmann La Roche Postdoctoral Fellow, 1976-1978, and Merck Senior Research Fellow, 1978-1987, with Anthony Y. H. Lu.
Send reprint requests to: Gerald T. Miwa, Department of Drug Metabolism and Pharmacokinetics, DuPont Pharmaceuticals Company, Stine-Haskell Research Center, 1090 Elkton Road, Newark, DE 19714. e-mail: Gerald.t.miwa{at}dupontpharma.com
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References |
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-hydroxylation in a soluble enzyme system from liver microsomes.
J Biol Chem
243:
1331-1332
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