previous studies ( j. r. gibbins , l. g. tilney , and k. r. porter , 1969 , j. cell biol . 41 , 201-226 ; l. g. tilney and j. r. gibbins , 1969 , j. cell biol . 41 , 227-250 ) implicated that microtubules are essential components for the normal development , including ingression , of the mesenchymal cells .
C0007634
cell
C0026046
microtubules