in order to study roles of the extracellular matrix ( ecm ) in the cerebellar granule cell migration , cerebellar microexplants of neonatal to postnatal 11-day-old mice were cultured on 3 kinds of substrata , poly-l-lysine ( pl ) , pl/fibronectin and pl/laminin .
C0015350
extracellular matrix
C0022984
laminin