Akira Endo (biochemist)

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Akira Endo
遠藤章
Sankyo Co., Tokyo University of Agriculture and Technology

Akira Endo (遠藤 章, Endō Akira, 14 November 1933 – 5 June 2024) was a Japanese biochemist whose research into the relationship between fungi and cholesterol biosynthesis led to the development of statin drugs, which are some of the best-selling pharmaceuticals in history.

Endo received the

Lasker-DeBakey Clinical Medical Research Award in 2008,[2] the Canada Gairdner International Award
in 2017.

Biography

Endo was born on a farm in Northern Japan and had an interest in fungi already at a young age, being an admirer of

Sendai in 1957[4] and a PhD in biochemistry at the same university in 1966.[citation needed
]

Endo died of pneumonia on 5 June 2024, at the age of 90.[5][6]

Career

From 1957 to 1978 he worked as a research fellow at chemical company

fruit juice.[7] Successful discoveries in this field gained him the credit to move to New York City in 1966, and spend two years at the Albert Einstein College of Medicine as a research associate[1] working on enzymes[4] and cholesterol.[3]

His most important work in the 1970s was on fungal extrolites and their influence on cholesterol synthesis. He hypothesised that fungi used chemicals to ward off parasitic organisms by inhibiting cholesterol synthesis. The cell membranes of fungi contain ergosterol in place of cholesterol, allowing them to produce compounds that inhibit cholesterol. In 1971 he found a culture broth with citrinin had potent inhibitory activity against HMG-CoA reductase and lowered serum cholesterol levels in rats, but research was suspended because of renal toxicity.

Endo studied 6,000 compounds, of which three extrolites from Penicillium citrinum mold isolated from a rice sample collected at a grain shop in Kyoto showed an effect.[8][4] Findings from clinical studies were only reported in 1980.[9]

One of them, mevastatin, was the first member of the statin class of drugs. Soon after, lovastatin, the first commercial statin, was found in the Aspergillus mold. Although mevastatin never became an approved drug, the mevastatin derivative pravastatin did.

In the late 1970s Endo moved back to Tokyo and was an associate professor and later a full professor at the Tokyo University of Agriculture and Technology between 1979 and 1997. After his official retirement he became the president of Biopharm Research Laboratories.[1]

Recognition

Endo was awarded several other prizes during his career:[1][4]

Apart from the recognition, Endo never derived financial benefit from his discovery, despite the fact that statins are amongst the most widely prescribed medications.

Michael S. Brown and Joseph L. Goldstein, who won the 1986 Nobel Prize for related work on cholesterol.[12]

See also

References

  1. ^ a b c d e The Science and Technology Foundation of Japan. Japan Prize official release Archived 10 January 2007 at the Wayback Machine, accessed 21 June 2006
  2. ^ Lasker~DeBakey Clinical Medical Research Award, 2008: Akira Endo
  3. ^ a b c Landers, Peter (9 January 2006). "How One Scientist Intrigued by Molds Found First Statin". Wall Street Journal.
  4. ^
    Wikidata Q130392725
    .
  5. ^ Japan Biochemist Who Discovered Statins, Akira Endo, Dies At 90: Colleague
  6. ^ "Akira Endo obituary: Japanese biochemist whose work led to statins". The Times. 25 June 2024. Retrieved 14 July 2024.
  7. ISSN 0002-1369
    .
  8. PMID 1010803
    .
  9. PMID 7362699
    .
  10. ^ Allen, Frederick. "The Inventors Hall of Fame Honors the Greatest Living Innovators". Forbes. Retrieved 12 May 2014.
  11. ^ ESC Gold Medal Award winner: Professor Akira Endo
  12. ^ landers, peter (9 January 2006). "How one scientist intrigued by molds found first statin". Wall Street Journal. WSJ. Retrieved 12 May 2014.
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