Adrenal Hormone Interactions and Metabolism: A Single Sample Multi-Omics Approach
Overview
Authors
Affiliations
The adrenal gland is important for many physiological and pathophysiological processes, but studies are often restricted by limited availability of sample material. Improved methods for sample preparation are needed to facilitate analyses of multiple classes of adrenal metabolites and macromolecules in a single sample. A procedure was developed for preparation of chromaffin cells, mouse adrenals, and human chromaffin tumors that allows for multi-omics analyses of different metabolites and preservation of native proteins. To evaluate the new procedure, aliquots of samples were also prepared using conventional procedures. Metabolites were analyzed by liquid-chromatography with mass spectrometry or electrochemical detection. Metabolite contents of chromaffin cells and tissues analyzed with the new procedure were similar or even higher than with conventional methods. Catecholamine contents were comparable between both procedures. The TCA cycle metabolites, -aconitate, isocitate, and α-ketoglutarate were detected at higher concentrations in cells, while in tumor tissue only isocitrate and potentially fumarate were measured at higher contents. In contrast, in a broad untargeted metabolomics approach, a methanol-based preparation procedure of adrenals led to a 1.3-fold higher number of detected metabolites. The established procedure also allows for simultaneous investigation of adrenal hormones and related enzyme activities as well as proteins within a single sample. This novel multi-omics approach not only minimizes the amount of sample required and overcomes problems associated with tissue heterogeneity, but also provides a more complete picture of adrenal function and intra-adrenal interactions than previously possible.
HIF1α controls steroidogenesis under acute hypoxic stress.
Ariyeloye S, Watts D, Jaykar M, Ermis C, Kruger A, Kaden D Cell Commun Signal. 2025; 23(1):86.
PMID: 39948619 PMC: 11827267. DOI: 10.1186/s12964-025-02080-8.
van den Berg M, Bechmann N, Kooistra H, van Wolferen M, Timmermans-Sprang E, Peitzsch M J Vet Intern Med. 2024; 38(5):2415-2424.
PMID: 39115145 PMC: 11423489. DOI: 10.1111/jvim.17148.
The 3D in vitro Adrenoid cell model recapitulates the complexity of the adrenal gland.
Martinelli S, Cantini G, Propato A, Bani D, Guasti D, Nardini P Sci Rep. 2024; 14(1):8044.
PMID: 38580769 PMC: 10997590. DOI: 10.1038/s41598-024-58664-w.
Asymmetric Adrenals: Sexual Dimorphism of Adrenal Tumors.
Bechmann N, Moskopp M, Constantinescu G, Stell A, Ernst A, Berthold F J Clin Endocrinol Metab. 2023; 109(2):471-482.
PMID: 37647861 PMC: 11032253. DOI: 10.1210/clinem/dgad515.
Metabolomics in paraganglioma: applications and perspectives from genetics to therapy.
Richter S, Garrett T, Bechmann N, Clifton-Bligh R, Ghayee H Endocr Relat Cancer. 2023; 30(6).
PMID: 36897220 PMC: 10228374. DOI: 10.1530/ERC-22-0376.