Combined micro-osmotic pump infusion and intracerebroventricular injection to study FGF1 signaling pathways in the mouse brain

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Intracerebroventricular (icv) injection of fibroblast growth factor 1 (FGF1) elicits remission of diabetic hyperglycemia in rodent models of type 2 diabetes. Here, we present an optimized protocol to study the intracellular signaling pathways underlying the FGF1-induced sustained glucose lowering in the mouse brain. This protocol combines icv injection of FGF1 and osmotic mini-pump infusion of U0126, an inhibitor of MAPK/ERK signaling. We describe the surgical procedure and verification of U0126 inhibition of FGF1-stimulated hypothalamic MAPK/ERK signaling via western blot. For complete details on the use and execution of this protocol, please refer to Brown et al. (2021).

Original languageEnglish
Article number101329
JournalSTAR Protocols
Volume3
Issue number2
Number of pages16
ISSN2666-1667
DOIs
Publication statusPublished - 2022

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Publisher Copyright:
© 2022 The Author(s)

    Research areas

  • Metabolism, Model Organisms, Molecular Biology, Neuroscience, Signal Transduction

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