| RRC ID |
71813
|
| Author |
Hamamoto H, Panthee S, Paudel A, Ishii K, Yasukawa J, Su J, Miyashita A, Itoh H, Tokumoto K, Inoue M, Sekimizu K.
|
| Title |
Serum apolipoprotein A-I potentiates the therapeutic efficacy of lysocin E against Staphylococcus aureus.
|
| Journal |
Nat Commun
|
| Abstract |
Lysocin E is a lipopeptide with antibiotic activity against methicillin-resistant Staphylococcus aureus. For unclear reasons, the antibacterial activity of lysocin E in a mouse systemic infection model is higher than expected from in vitro results, and the in vitro activity is enhanced by addition of bovine serum. Here, we confirm that serum from various species, including humans, increases lysocin E antimicrobial activity, and identify apolipoprotein A-I (ApoA-I) as an enhancing factor. ApoA-I increases the antibacterial activity of lysocin E when added in vitro, and the antibiotic displays reduced activity in ApoA-I gene knockout mice. Binding of ApoA-I to lysocin E is enhanced by lipid II, a cell-wall synthesis precursor found in the bacterial membrane. Thus, the antimicrobial activity of lysocin E is potentiated through interactions with host serum proteins and microbial components.
|
| Volume |
12(1)
|
| Pages |
6364
|
| Published |
2021-11-4
|
| DOI |
10.1038/s41467-021-26702-0
|
| PII |
10.1038/s41467-021-26702-0
|
| PMID |
34737305
|
| PMC |
PMC8568920
|
| MeSH |
Animals
Anti-Bacterial Agents / pharmacology*
Apolipoprotein A-I / blood*
Disease Models, Animal
Female
Lipopeptides / pharmacology
Methicillin-Resistant Staphylococcus aureus / drug effects*
Methicillin-Resistant Staphylococcus aureus / isolation & purification
Mice
Mice, Inbred C57BL
Mice, Inbred ICR
Microbial Sensitivity Tests
Peptides, Cyclic / pharmacology*
Staphylococcal Infections / blood
Staphylococcal Infections / drug therapy*
Staphylococcal Infections / microbiology
|
| IF |
12.121
|
| Resource |
| Silkworms |
|
