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Blackman B, Raju N, Mushti C, Lane K, Patel D, Harris C, Swenson RE. Isolation and Identification of a Urinary Biomarker for Lung Cancer: 27-Nor-5β-Cholestane-3α,7α,12α,24 R,25 S Pentol Glucuronide and Its Deuterated Analog. Molecules 2024; 29:2781. [PMID: 38930845 PMCID: PMC11206657 DOI: 10.3390/molecules29122781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
An untargeted metabolomic study identified four potential lung cancer diagnostic biomarkers in human urine. One of the potential biomarkers was an unidentified feature possessing a m/z value of 561+. "561+" was isolated from human urine and tentatively identified as 27-nor-5β-cholestane-3α,7α,12α,24,25 pentol glucuronide with unknown C24,25 stereochemistry using 1H NMR and mass spectrometry. In a prior report, the C24,25 stereochemistry of the aglycone, 27-nor-5β-cholestane-3α,7α,12α,24,25 pentol, was found to be 24S,25R through GC analysis of the acetonide-TMS derivative. An authentic sample was prepared and found not to have the same stereochemistry as "561+". To identify the C24,25 stereochemistry, four C24,C25 diastereoisomeric alcohols of 27-nor-5β-cholestane-3α,7α,12α,24,25 pentol were prepared from chiral amino acids. Using an LCMS method, the C24,C25 stereochemistry of the "561+" aglycone was determined to be 24R,25S. With the correct aglycone in hand, it was coupled with glucuronic acid to complete the first reported synthesis of 27-nor-5β-cholestane-3α,7α,12α,24R,25S pentol glucuronide. Deuterium labeled 27-nor-5β-cholestane-3α,7α,12α,24R,25S pentol was also synthesized for use as an internal standard for MS quantitation.
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Affiliation(s)
- Burchelle Blackman
- Chemistry and Chemical Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD 20850, USA; (N.R.); (C.M.); (K.L.)
| | - Natarajan Raju
- Chemistry and Chemical Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD 20850, USA; (N.R.); (C.M.); (K.L.)
| | - Chandrasekhar Mushti
- Chemistry and Chemical Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD 20850, USA; (N.R.); (C.M.); (K.L.)
| | - Kelly Lane
- Chemistry and Chemical Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD 20850, USA; (N.R.); (C.M.); (K.L.)
- AstraZeneca, 1 MedImmune Way, Gaithersburg, MD 20878, USA
| | - Daxeshkumar Patel
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA; (D.P.)
| | - Curtis Harris
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA; (D.P.)
| | - Rolf E. Swenson
- Chemistry and Chemical Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD 20850, USA; (N.R.); (C.M.); (K.L.)
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Kosaka D, Hiraoka T, Kohoda T, Kajiyama G, Yamauchi T, Kihira K, Kuramoto T, Hoshita T. Stable isotope dilution assay for 5 beta-cholestane-3 alpha,7 alpha,12 alpha,25-tetrol and 5 beta-cholestane-3 alpha,7 alpha,12 alpha,23,25-pentol in human serum using [26,27-D6] labeled internal standards; a highly accurate approach to the serological diagnosis of cerebrotendinous xanthomatosis. Clin Chim Acta 1991; 199:83-9. [PMID: 1934504 DOI: 10.1016/0009-8981(91)90011-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- D Kosaka
- First Department of Internal Medicine, Hiroshima University School of Medicine, Japan
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Hiraoka T, Kosaka D, Kajiyama G, Kohda T, Funakura T, Yamauchi T, Kihira K, Hoshita T. Measurement of serum bile alcohol levels in liver dysfunction, using isotope dilution-mass spectrometry. Scand J Gastroenterol 1988; 23:821-6. [PMID: 3067328 DOI: 10.3109/00365528809090767] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We determined the concentration of two major serum bile alcohols, 27-nor-5 beta-cholestane-3 alpha,7 alpha,12 alpha,24,25-pentol and 5 beta-cholestane-3 alpha,7 alpha,12 alpha,25,26-pentol, in healthy controls and patients with acute hepatitis, chronic hepatitis, and cirrhosis, using isotope dilution-mass spectrometry. In healthy controls the mean total amount of the two major bile alcohols was 9.6 +/- 3.4 ng/ml (mean +/- SD). In patients with liver diseases the mean values were as follows: acute hepatitis, 44.8 +/- 18.2 ng/ml; chronic hepatitis, 18.2 +/- 5.6 ng/ml; Child grade A cirrhosis, 37.9 +/- 26.0 ng/ml; Child grade B, 42.7 +/- 22.0 ng/ml; and Child grade C, 71.2 +/- 24.2 ng/ml. The mean ratio of 5 beta-cholestane-3 alpha,7 alpha,12 alpha,25,26-pentol to 27-nor-5 beta-cholestane-3 alpha,7 alpha,12 alpha,24,25-pentol in patients with Child grade C cirrhosis was significantly higher than that in healthy controls (1.42 +/- 0.92 versus 0.61 +/- 0.11; p less than 0.05).
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Affiliation(s)
- T Hiraoka
- First Dept. of Internal Medicine, Hiroshima University School of Medicine, Japan
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