at low density ( less than 200,000 cells/cm2 ) the cultures have a doubling time of 24 h and exhibit several characteristics of fetal liver cells , including increased synthesis of alphafetoprotein , reduced synthesis of albumin , a predominance of the fetal isoenzymes of both aldolase and pyruvate kinase and a reduced level of the cell surface receptor for asialoglycoproteins .
C0007634
cells
C0699040
of