Biochemical Assays to Detect Activation of Small GTPases Rho, Rac, and Cdc42 during Morphogenesis

Methods Mol Biol. 2022:2438:83-95. doi: 10.1007/978-1-0716-2035-9_5.

Abstract

Wnt/Frizzled (Fz) signaling controls developmental, physiological, and pathological processes through several distinct pathways. Wnt/Fz activation of the small GTPases Rho, Rac, and Cdc42, is one key mechanism that regulates cell polarity and migration during vertebrate gastrulation. In this chapter, we describe biochemical assays for detection of Wnt/Fz-mediated activation of Rho, Rac and Cdc42 in both mammalian cells and Xenopus embryo explants.

Keywords: Cdc42; Gastrulation; Noncanonical Wnt signaling; Rac; Rho; Xenopus.

MeSH terms

  • Animals
  • Cell Polarity / physiology
  • Monomeric GTP-Binding Proteins* / metabolism
  • Morphogenesis
  • Wnt Proteins* / metabolism
  • Wnt Signaling Pathway
  • cdc42 GTP-Binding Protein / metabolism
  • rac GTP-Binding Proteins / metabolism
  • rho GTP-Binding Proteins / metabolism

Substances

  • Wnt Proteins
  • Monomeric GTP-Binding Proteins
  • cdc42 GTP-Binding Protein
  • rac GTP-Binding Proteins
  • rho GTP-Binding Proteins