Drug discovery by a basic research scientist

I was fortunate to do my military service during the Vietnam era as a medical officer at the National Institutes of Health (NIH) in Bethesda, Maryland. My first research at NIH was concerned with making a variety of optical measurements on nucleic acid bases and proteins, including single crystal sp...

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Main Author: William A. Eaton
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-11-01
Series:Frontiers in Molecular Biosciences
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmolb.2022.1062346/full
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author William A. Eaton
author_facet William A. Eaton
author_sort William A. Eaton
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description I was fortunate to do my military service during the Vietnam era as a medical officer at the National Institutes of Health (NIH) in Bethesda, Maryland. My first research at NIH was concerned with making a variety of optical measurements on nucleic acid bases and proteins, including single crystal spectra in linearly polarized light and near infrared circular dichroism, interpreting the spectra using molecular orbital and crystal field theories. What I do now is drug discovery, a field at the opposite end of the scientific spectrum. This article gives a brief account of my transition from spectroscopy to sickle cell hemoglobin polymerization to protein folding to drug discovery for treating sickle cell disease. My lab recently developed a high throughput assay to screen the 12,657 compounds of the California Institute of Biomedical Research ReFrame drug repurposing library. This is a precious library because the compounds have either been FDA approved or have been tested in clinical trials. Since the 1970s numerous agents have been reported in the literature to inhibit HbS polymerization and/or sickling with only one successful drug, hydroxyurea, and another of dubious value, voxelotor, even though it has been approved by the FDA. Our screen has discovered 106 anti-sickling agents in the ReFrame compound library. We estimate that as many as 21 of these compounds could become oral drugs for treating sickle cell disease because they inhibit at concentrations typical of the free concentrations of oral drugs in human serum.
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spelling doaj.art-77ba2d6f1bf64b89bc00d7513421455f2022-12-22T02:38:21ZengFrontiers Media S.A.Frontiers in Molecular Biosciences2296-889X2022-11-01910.3389/fmolb.2022.10623461062346Drug discovery by a basic research scientistWilliam A. EatonI was fortunate to do my military service during the Vietnam era as a medical officer at the National Institutes of Health (NIH) in Bethesda, Maryland. My first research at NIH was concerned with making a variety of optical measurements on nucleic acid bases and proteins, including single crystal spectra in linearly polarized light and near infrared circular dichroism, interpreting the spectra using molecular orbital and crystal field theories. What I do now is drug discovery, a field at the opposite end of the scientific spectrum. This article gives a brief account of my transition from spectroscopy to sickle cell hemoglobin polymerization to protein folding to drug discovery for treating sickle cell disease. My lab recently developed a high throughput assay to screen the 12,657 compounds of the California Institute of Biomedical Research ReFrame drug repurposing library. This is a precious library because the compounds have either been FDA approved or have been tested in clinical trials. Since the 1970s numerous agents have been reported in the literature to inhibit HbS polymerization and/or sickling with only one successful drug, hydroxyurea, and another of dubious value, voxelotor, even though it has been approved by the FDA. Our screen has discovered 106 anti-sickling agents in the ReFrame compound library. We estimate that as many as 21 of these compounds could become oral drugs for treating sickle cell disease because they inhibit at concentrations typical of the free concentrations of oral drugs in human serum.https://www.frontiersin.org/articles/10.3389/fmolb.2022.1062346/fullsickle cellHbSpolymerizationdrug discoverydrug screening
spellingShingle William A. Eaton
Drug discovery by a basic research scientist
Frontiers in Molecular Biosciences
sickle cell
HbS
polymerization
drug discovery
drug screening
title Drug discovery by a basic research scientist
title_full Drug discovery by a basic research scientist
title_fullStr Drug discovery by a basic research scientist
title_full_unstemmed Drug discovery by a basic research scientist
title_short Drug discovery by a basic research scientist
title_sort drug discovery by a basic research scientist
topic sickle cell
HbS
polymerization
drug discovery
drug screening
url https://www.frontiersin.org/articles/10.3389/fmolb.2022.1062346/full
work_keys_str_mv AT williamaeaton drugdiscoverybyabasicresearchscientist