Dermatomal mesenchyme the dorsal portion of the paraxial mesoderm somite which gives rise to dermis
Activation of FGF by two ligands that function together, FGF4 and FGF8 (17) in Xenopus and FGF8 and FGF24 in zebrafish (18), is necessary for mesoderm formation.
Between 1850 and 1855, Robert Remak had further refined the germ cell layer concept, and introduced into English were the terms "mesoderm" by Huxley in 1871 and "ectoderm" and "endoderm" by Lankester in 1873.
FGF10 = Initially, Tbx proteins induce secretion of FGF10 by cells in the lateral plate mesoderm.
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#Knocking out Tbx4 or Tbx5 knockout prevents FGF10 expression in the lateral plate mesoderm in mice.The Hox pathway may affect Tbx expression, which in turn affects FGF10 expression.