. "Any process that activates or increases the frequency, rate or extent of signaling pathways initiated by the cross-linking of an antigen receptor on a B- or T cell." . . . . "positive regulation of antigen receptor-mediated signaling pathway" . "activation of antigen receptor-mediated signaling pathway" . "positive regulation of antigen receptor mediated signalling pathway" . "stimulation of antigen receptor-mediated signaling pathway" . "up regulation of antigen receptor-mediated signaling pathway" . "up-regulation of antigen receptor-mediated signaling pathway" . "upregulation of antigen receptor-mediated signaling pathway" . . . . .