passages.id: split_4_test_1190_passage
passages.type: progene_text
passages.text: In situ hybridisation showed that NGF and TrkA mRNA were often concomitantly present in polymorphonuclear - like cells of the lamina propria , in mast cells , and in a few ganglia of Auerbach 's plexus and Meissner 's plexus .