NCIt definition : A synthetic or semi-synthetic beta-lactam antibiotic derived from Acremonium (Cephalosporium)
fungi with bactericidal activity. Cephalosporin antibiotics bind to and inactivate
penicillin-binding proteins (PBPs) located on the inner membrane of the bacterial
cell wall. Inactivation of PBPs interferes with the cross-linkage of peptidoglycan
chains necessary for bacterial cell wall strength and rigidity. This interrupts bacterial
cell wall synthesis and results in the weakening of the bacterial cell wall, eventually
causing cell lysis.;
Alternative definition : NCI-GLOSS: A drug used to treat bacterial infections. It belongs to the family of
drugs called antibiotics.;