Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracers

Summary: Cholesterol biosynthesis supports proliferation and drives resistance to tyrosine kinase inhibitor (TKI) therapy in hepatocellular carcinoma (HCC). Here, we present a protocol for using stable isotopic tracers to track the biosynthesis of cholesterol in cultured HCC cells. We describe steps...

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Main Authors: Jonathan D. Cybulski, Kit Sum Leung, Carmen Oi Ning Leung, David M. Baker, Terence Kin Wah Lee
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:STAR Protocols
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666166723004732
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author Jonathan D. Cybulski
Kit Sum Leung
Carmen Oi Ning Leung
David M. Baker
Terence Kin Wah Lee
author_facet Jonathan D. Cybulski
Kit Sum Leung
Carmen Oi Ning Leung
David M. Baker
Terence Kin Wah Lee
author_sort Jonathan D. Cybulski
collection DOAJ
description Summary: Cholesterol biosynthesis supports proliferation and drives resistance to tyrosine kinase inhibitor (TKI) therapy in hepatocellular carcinoma (HCC). Here, we present a protocol for using stable isotopic tracers to track the biosynthesis of cholesterol in cultured HCC cells. We describe steps for cell preparation, incubation, separation, and homogenization. We then detail lipid extraction and compound-specific isotope analysis for comparing and quantifying cholesterol synthesis between TKI-resistant HCC cells and their mock counterparts. This protocol can be expanded for use with other shorter-chained lipids. : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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spelling doaj.art-aece1a8784524daf96df78805392605a2023-08-19T04:32:34ZengElsevierSTAR Protocols2666-16672023-09-0143102506Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracersJonathan D. Cybulski0Kit Sum Leung1Carmen Oi Ning Leung2David M. Baker3Terence Kin Wah Lee4School of Biological Sciences, Faculty of Science, The University of Hong Kong, Hong Kong, Hong Kong SAR; Smithsonian Tropical Research Institute, Balboa, Republic of Panama; Corresponding authorSmithsonian Tropical Research Institute, Balboa, Republic of PanamaDepartment of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SARSmithsonian Tropical Research Institute, Balboa, Republic of Panama; Corresponding authorDepartment of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR; State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR; Corresponding authorSummary: Cholesterol biosynthesis supports proliferation and drives resistance to tyrosine kinase inhibitor (TKI) therapy in hepatocellular carcinoma (HCC). Here, we present a protocol for using stable isotopic tracers to track the biosynthesis of cholesterol in cultured HCC cells. We describe steps for cell preparation, incubation, separation, and homogenization. We then detail lipid extraction and compound-specific isotope analysis for comparing and quantifying cholesterol synthesis between TKI-resistant HCC cells and their mock counterparts. This protocol can be expanded for use with other shorter-chained lipids. : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.http://www.sciencedirect.com/science/article/pii/S2666166723004732Cell CultureCancerMetabolismChemistry
spellingShingle Jonathan D. Cybulski
Kit Sum Leung
Carmen Oi Ning Leung
David M. Baker
Terence Kin Wah Lee
Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracers
STAR Protocols
Cell Culture
Cancer
Metabolism
Chemistry
title Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracers
title_full Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracers
title_fullStr Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracers
title_full_unstemmed Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracers
title_short Protocol to track the biosynthesis of cholesterol in cultured HCC cells using 13C compound-specific stable isotopic tracers
title_sort protocol to track the biosynthesis of cholesterol in cultured hcc cells using 13c compound specific stable isotopic tracers
topic Cell Culture
Cancer
Metabolism
Chemistry
url http://www.sciencedirect.com/science/article/pii/S2666166723004732
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