positively regulates metanephric mesenchymal cell migration platelet-derived growth factor receptor-beta signaling pathway positive regulation of metanephric mesenchymal cell migration by platelet-derived growth factor receptor-beta signaling pathway 2011-04-11T01:30:03Z Any process that increases the frequency, rate or extent of metanephric mesenchymal cell migration resulting from the platelet-derived growth factor receptor-beta signaling pathway. positive regulation of metanephric mesenchymal cell migration by PDGF receptor-beta signaling pathway positive regulation of metanephric mesenchymal cell migration by PDGFR-beta signaling pathway bf positive regulation of metanephric mesenchymal cell migration by platelet-derived growth factor receptor-beta signalling pathway positive regulation of metanephric mesenchymal cell migration by betaPDGF receptor signaling pathway biological_process GO:0035793 regulation of metanephric mesenchymal cell migration by platelet-derived growth factor receptor-beta signaling pathway positive regulation of metanephric mesenchymal cell migration