the comparison is drawn from several parameters : ( 1 ) cellular origin , ( 2 ) molecular weight , ( 3 ) target cell , ( 4 ) susceptibility to inactivation by heating or by incubation with pronase , trypsin , or chymotrypsin , and ( 5 ) ability to cause noncytotoxic inhibition of random migration or chemotaxis of pmns .
C0007634
cellular
C0008018
chemotaxis