Organoid Sample Preparation and Extraction for LC-MS Peptidomics

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Miedzybrodzka, Emily, L | Foreman, Rachel, E | Galvin, Sam, G | Larraufie, Pierre | George, Amy, L | Goldspink, Deborah, A | Reimann, Frank | Gribble, Fiona, M | Kay, Richard, G

Edité par CCSD ; Elsevier -

International audience. This protocol describes the peptidomic analysis of organoid lysates, FACS-purified cell populations, and 2D culture secretions by liquid chromatography mass spectrometry (LC-MS). Currently, most peptides are quantified by ELISA, limiting the peptides that can be studied. However, an LC-MS-based approach allows more peptides to be monitored. Our group has previously used LC-MS for tissue peptidomics and secretion of enteroendocrine peptides from primary culture. Now, we extend the use to organoid models.

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