Using Mass Spectrometry Imaging to Visualize Age-related Subcellular Disruption
Overview
Authors
Affiliations
Metabolic homeostasis balances the production and consumption of energetic molecules to maintain active, healthy cells. Cellular stress, which disrupts metabolism and leads to the loss of cellular homeostasis, is important in age-related diseases. We focus here on the role of organelle dysfunction in age-related diseases, including the roles of energy deficiencies, mitochondrial dysfunction, endoplasmic reticulum (ER) stress, changes in metabolic flux in aging (e.g., Ca and nicotinamide adenine dinucleotide), and alterations in the endoplasmic reticulum-mitochondria contact sites that regulate the trafficking of metabolites. Tools for single-cell resolution of metabolite pools and metabolic flux in animal models of aging and age-related diseases are urgently needed. High-resolution mass spectrometry imaging (MSI) provides a revolutionary approach for capturing the metabolic states of individual cells and cellular interactions without the dissociation of tissues. mass spectrometry imaging can be a powerful tool to elucidate the role of stress-induced cellular dysfunction in aging.
Mitochondrial heterogeneity and crosstalk in aging: Time for a paradigm shift?.
Hinton Jr A, Vue Z, Scudese E, Neikirk K, Kirabo A, Montano M Aging Cell. 2024; 23(10):e14296.
PMID: 39188058 PMC: 11464123. DOI: 10.1111/acel.14296.
Mitochondrial Structure and Function in Human Heart Failure.
Hinton Jr A, Claypool S, Neikirk K, Senoo N, Wanjalla C, Kirabo A Circ Res. 2024; 135(2):372-396.
PMID: 38963864 PMC: 11225798. DOI: 10.1161/CIRCRESAHA.124.323800.
Spatiotemporal multi-omics: exploring molecular landscapes in aging and regenerative medicine.
Chu L, Wang W, Gu X, Wu P, Gao C, Zhang Q Mil Med Res. 2024; 11(1):31.
PMID: 38797843 PMC: 11129507. DOI: 10.1186/s40779-024-00537-4.
Endoplasmic Reticulum Stress in Hypertension and Salt Sensitivity of Blood Pressure.
Balhara M, Neikirk K, Marshall A, Hinton Jr A, Kirabo A Curr Hypertens Rep. 2024; 26(6):273-290.
PMID: 38602583 PMC: 11166838. DOI: 10.1007/s11906-024-01300-9.
Mitochondria in disease: changes in shapes and dynamics.
Jenkins B, Neikirk K, Katti P, Claypool S, Kirabo A, McReynolds M Trends Biochem Sci. 2024; 49(4):346-360.
PMID: 38402097 PMC: 10997448. DOI: 10.1016/j.tibs.2024.01.011.