Table 5

- Studies of antibiofilm activity of bacteriophages on biofilms formed by MDR isolates.

OrganismPhage treatmentOutcomeReference
MDR P. aeruginosaMA1-Reduction of 2.1-fold in a 24 hour (h) old biofilm, 2.5-fold in a 48 h old biofilm, and 3.2-fold in a 72 h old biofilm(56)
MDR P. aeruginosavB_PaeM_LS1Eliminated preformed biofilm(27)
MRSACSA13Reduced the biofilm biomass in a 24h biofilm by 93%(60)
MDR E. cloacaeMJ2Reduction of 2.8-log in a 24 h old biofilm, 3-log in a 72 h old biofilm, and 3.5-log in 120 h old biofilm(62)
MDR uropathogenic E. colivB_EcoP-EG1The phage eliminated 60% of a 24 h old biofilm developed by MG1655 and 50% of a 24 h old biofilm developed by 390G7(59)
MDR K. pneumoniaeZReduction of 2-fold in a 24 h old biofilm and 3-fold in a 48 h old biofilm(58)
MDR A. baumanniiCombination of bacteriophage cocktail and antibioticsA synergistic effect between phage cocktail and some antibiotics caused a significant reduction in biofilm biomass formed by A. baumannii(57)
MDR P. stuartiiTwo lytic phages (PSTCR4 and PSTCR6)Reduced P. stuartii biofilm cells by 2.86- and 2.46-log in latex and silicone catheters(63)
MDR K. pneumoniaeDepolymerase (Dep42)Dep42 significantly inhibited biofilm formation and degrade existed biofilms K. pneumoniae
Dep42 enhanced polymyxin activity against biofilm formed by K. pneumoniae biofilms
(64)
MDR A. baumanniiPhage vABWU2101Phage vABWU2101 exhibited activity against both existed biofilm and biofilm formation, accounting for 18.77 to 70.25% reduction in formation of biofilm biomass and 9.43 to 52.43% reduction in existed biofilm biomass
The combination treatment of phage vABWU2101 and tigecycline showed synergistic antibiofilm activity against biofilm formed by MDR A. baumanni
(65)

MDR: Multidrug-resistant, P. aeruginosa: Pseudomonas aeruginosa, MRSA: Methicillin-resistant Staphylococcus aureus, E. cloacae: Enterobacter cloacae, E. coli: Escherichia coli, A. baumanni: K. pneumoniae: Klebsiella pneumoniae, Z: bacteriophage Z, P. stuartii: Providencia stuartii