the preliminary incubation of whole-cell pv with polymyxin b , cationic polypeptide selectively reacting with the lipid a moiety of lipopolysaccharide ( lps ) , led to a sharp decrease in the above-mentioned manifestations of hematopoietic effect of the vaccine , while incubation with cetavlon interacting with the polysaccharide moiety of lps produced practically no effect on the capacity of the vaccine for stimulating hematopoiesis .
C0023767
lipid a
C0023810
lps