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Microgravity induces proteomics changes involved in endoplasmic reticulum stress and mitochondrial protection

Published by Open Science Data Repository | National Aeronautics and Space Administration | Metadata Last Checked: August 31, 2025 | Last Modified: 2025-08-21
To reveal outcomes of microgravity on molecular processes within the cellular environment we have employed a mass-spectrometry based proteomics approach. Proteomics analysis based on mass spectrometry allows for the relative quantitation of a large number of proteins concurrently, and in a relatively unbiased manner. Mass spectrometry based proteomics can be rendered even more informative by addition of a labeling component to understand the dynamics of the changing protein content. In this study, we utilized a combination of proteomics techniques, namely label-free quantification and dynamic stable-isotope labeling by amino acids in cell culture (Dynamic SILAC) to characterize the microgravity stress response in primary cardiomyocytes.

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