Title : Activation of RhoA by lysophosphatidic acid and Galpha12/13 subunits in neuronal cells: induction of neurite retraction.

Pub. Date : 1999 Jun

PMID : 10359601






6 Functional Relationships(s)
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1 Activation of RhoA by lysophosphatidic acid and Galpha12/13 subunits in neuronal cells: induction of neurite retraction. lysophosphatidic acid ras homolog family member A Mus musculus
2 Using GST-ROK, we show that in N1E-115 neuronal cells LPA activates endogenous RhoA within 30 s, concomitant with growth cone collapse. lysophosphatidic acid ras homolog family member A Mus musculus
3 LPA-induced RhoA activation is completely inhibited by tyrosine kinase inhibitors (tyrphostin 47 and genistein). lysophosphatidic acid ras homolog family member A Mus musculus
4 Activated Galpha12 and Galpha13 subunits mimic LPA both in activating RhoA and in inducing RhoA-mediated cytoskeletal contraction, thereby preventing neurite outgrowth. lysophosphatidic acid ras homolog family member A Mus musculus
5 Activated Galpha12 and Galpha13 subunits mimic LPA both in activating RhoA and in inducing RhoA-mediated cytoskeletal contraction, thereby preventing neurite outgrowth. lysophosphatidic acid ras homolog family member A Mus musculus
6 We conclude that in neuronal cells, LPA activates RhoA to induce growth cone collapse and neurite retraction through a G12/13-initiated pathway that involves protein-tyrosine kinase activity. lysophosphatidic acid ras homolog family member A Mus musculus