Phage therapy uses bacteriophages—viruses that infect and lyse specific bacteria—as precision antimicrobials. Unlike broad-spectrum antibiotics, phages target specific bacterial species or strains, sparing the commensal microbiome.
In the WikiBiome framework, phage therapy represents a targeted ecological intervention (Karen's Brain Primitive 5)—suppressing specific pathobionts without collateral Dysbiosis.
Evidence map5 cited passagesInspect provenance +
Chronic prostatitis: Phage endolysins tested against biofilm-forming bacteria in chronic pelvic pain syndrome.
E. coli prostatitis case report: Phage therapy cleared dominant E. coli biofilm, unmasking co-infecting Serratia marcescens—demonstrating polymicrobial complexity.
Safety/efficacy systematic review: Phage therapy is generally safe with favorable outcomes in compassionate-use settings, though RCT evidence remains limited.
CRC virome: Altered bacteriophage communities in CRC, with phage-bacteria dynamics influencing tumor progression.
Phage nanovectors: Engineered phage (M13) as drug delivery vehicles for photodynamic CRC therapy.
Contents
1. Advantages Over Antibiotics2. Clinical Evidence3. Phage Cocktails4. Metal Connection5. Cross-ReferencesAdvantages Over Antibiotics#
Species-specific: Each phage infects a narrow host range, preserving the broader microbiome. Biofilm penetration: Phages encode depolymerases that degrade biofilm extracellular matrix—addressing the biofilm resistance problem that defeats antibiotics. Self-amplifying: Phages replicate at the site of infection, increasing in number where the target pathogen is most abundant.
cobalt (Co)-evolution capacity: Phage-resistant bacterial mutants often lose virulence factors, creating a fitness trade-off.
Clinical Evidence#
Chronic prostatitis: Phage endolysins tested against biofilm-forming bacteria in chronic pelvic pain syndrome.[1]Stevens 2023 — Successful Use of a Phage Endolysin for Treatment of CPPS/Chronic Bacterial ProstatitisRoy H. Stevens, Hongming Zhang, Michal Kajsik et al. · 2023Open reference 1 ↓
E. coli prostatitis case report: Phage therapy cleared dominant E. coli biofilm, unmasking co-infecting Serratia marcescens—demonstrating polymicrobial complexity.[2]Johri 2023 — Successful Treatment of Recurrent E. coli Infection with Bacteriophage Therapy for Chronic Bacterial ProstatitisApurva Virmani Johri, Pranav Johri, Naomi Hoyle et al. · 2023Open reference 2 ↓
Safety/efficacy systematic review: Phage therapy is generally safe with favorable outcomes in compassionate-use settings, though RCT evidence remains limited.[3]Safety and efficacy of phage therapy in difficult-to-treat infections: a systematic reviewSaartje Uyttebroek, Baisong Chen, Jolien Onsea et al. · 2022Open reference 3 ↓
CRC virome: Altered bacteriophage communities in CRC, with phage-bacteria dynamics influencing tumor progression.[4]Alterations in colorectal cancer virome and its persistence after surgerySi Xian Ho, Jia-Hao Law, Chin-Wen Png et al. · 2024Open reference 4 ↓ Phage nanovectors: Engineered phage (M13) as drug delivery vehicles for photodynamic CRC therapy.[5]Molecular engineering of a spheroid-penetrating phage nanovector for photodynamic treatment of colon cancer cellsEleonora Turrini, Luca Ulfo, Paolo Emidio Costantini et al. · 2024Open reference 5 ↓
Phage Cocktails#
Phage cocktails combine multiple phages targeting the same species (different receptors) or different species in a polymicrobial infection. The cocktail approach. Reduces emergence of phage-resistant mutants.
Broadens the host range within a target species. Can address polymicrobial biofilms when combined with Functional Shielding-disrupting antifungals.
Metal Connection#
Phage therapy intersects with metallomics in two ways. Some phage endolysins are zinc-dependent metalloenzymes—zinc availability affects lytic activity. Phage therapy can replace antibiotics in scenarios where metal-antibiotic co-selection (Co-Selection) drives AMR—phages exert no metal-resistance selection pressure.
Cross-References#
- Antimicrobial Resistance—phage therapy as AMR solution
- Biofilm—phage depolymerases penetrate biofilm matrix
- Functional Shielding—sequential antifungal + phage approach for polymicrobial biofilms
- Co-Selection—phage therapy avoids metal-antibiotic co-selection
References 6
Numbered by first appearance in the article, then reconciled with its declared source list.
- 1
Roy H. Stevens, Hongming Zhang, Michal Kajsik et al. (2023). Stevens 2023 — Successful Use of a Phage Endolysin for Treatment of CPPS/Chronic Bacterial Prostatitis. Frontiers in Medicine.
- 2
Apurva Virmani Johri, Pranav Johri, Naomi Hoyle et al. (2023). Johri 2023 — Successful Treatment of Recurrent E. coli Infection with Bacteriophage Therapy for Chronic Bacterial Prostatitis. Frontiers in Pharmacology.
- 3
Saartje Uyttebroek, Baisong Chen, Jolien Onsea et al. (2022). Safety and efficacy of phage therapy in difficult-to-treat infections: a systematic review. The Lancet Infectious Diseases.
- 4
Si Xian Ho, Jia-Hao Law, Chin-Wen Png et al. (2024). Alterations in colorectal cancer virome and its persistence after surgery. Scientific Reports.
- 5
Eleonora Turrini, Luca Ulfo, Paolo Emidio Costantini et al. (2024). Molecular engineering of a spheroid-penetrating phage nanovector for photodynamic treatment of colon cancer cells. Cellular and Molecular Life Sciences.
- 6
Zheng S, Chen H, Yang H et al. (2024). Zheng 2024 — Differential enrichment of bacteria and phages in vaginal microbiomes in PCOS and obesity: shotgun sequencing analysis. Frontiers in Microbiomes.
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