title: Preparation of tissue-specific cell-aggregating factors from embryonic neural tissues.
abstract: Tissue-specific cell-aggregating factors were previously obtained from the supernatant media of embryonic cell cultures. We describe here that such factors can be extracted from cell-membrane preparations derived directly from embryonic tissues: neural retina, cerebrum, and spinal cord of chick embryos.
mesh_terms: D000818:Animals; D001921:Brain / Q000196:embryology; D001923:Brain Chemistry; D002449:Cell Aggregation; D002462:Cell Membrane / Q000032:analysis; D002478:Cells, Cultured; D002490:Central Nervous System / Q000196:embryology*; D002642:Chick Embryo; D012160:Retina / Q000032:analysis / Q000196:embryology*; D013116:Spinal Cord / Q000032:analysis / Q000196:embryology