Related Experiment Video
Updated: Dec 8, 2025
08:46
Author Spotlight: Investigating Bacteriophage-Induced Immune Responses in Gnotobiotic Mice
Published on: January 26, 2024
2.3K
Phage Therapy in Gastrointestinal Diseases.
Beatriz Gutiérrez1, Pilar Domingo-Calap1,2
1Department of Genetics, Universitat de València, 46100 Valencia, Spain.
Microorganisms
|September 19, 2020
Summary
Bacteriophages, viruses that infect bacteria, are emerging as a promising treatment for gastrointestinal diseases. Phage therapy offers an alternative to antibiotics for managing conditions like ulcerative colitis and Crohn's disease.
Area of Science:
- Microbiology
- Gastroenterology
- Virology
Background:
- The gut microbiota, particularly its viral component (bacteriophages), is crucial for maintaining gastrointestinal homeostasis.
- Bacterial pathogens and antibiotic resistance are major drivers of gastrointestinal inflammatory diseases.
- Current treatments are limited, necessitating novel therapeutic approaches.
Purpose of the Study:
- To review the latest research on bacteriophages in gastroenterology.
- To highlight advancements in phage therapy for gastrointestinal diseases.
- To discuss ongoing clinical trials involving phage therapy.
Main Methods:
- Literature review of recent studies on bacteriophages and gastrointestinal health.
- Analysis of research on phage therapy's mechanisms of action.
- Compilation of data from clinical trials in gastroenterology.
Main Results:
- Bacteriophages modulate gut bacterial communities and influence disease pathogenesis.
- Phage therapy demonstrates immunomodulatory and bactericidal effects against pathogens like *Clostridioides difficile* and *Escherichia coli*.
- Genetically modified phages can target bacterial virulence factors.
Conclusions:
- Phage therapy presents a viable clinical alternative for restoring intestinal eubiosis.
- It offers targeted treatment for bacterial infections in ulcerative colitis and Crohn's disease.
- Further research and clinical trials are essential to fully realize phage therapy's potential in gastroenterology.
More Related Videos
Related Concept Videos
01:30Lytic Cycle of Bacteriophages
76.7K
Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...
76.7K
01:29Microorganisms in Medicine and Therapeutics
748
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
748
00:43Lysogenic Cycle of Bacteriophages
66.9K
In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine their genome with the host genome, allowing the bacteria to replicate the phage DNA along with the bacterial genome. The incorporated copy of the phage genome is called the prophage. Some prophages can re-activate and enter the lytic cycle. This often occurs in response to a perturbation, such as DNA damage, but can also transpire in the absence of...
66.9K
01:16Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy
835
Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
835
01:26DNA Bacteriophages
550
Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...
550
01:16Viral Replication: Lysogenic Cycle
1.0K
The lysogenic cycle is a crucial viral replication strategy that allows bacteriophages to persist within host cells without immediately destroying them. This process is primarily observed in temperate phages, such as bacteriophage lambda (λ), which infects Escherichia coli. The cycle allows the viral genome to persist across bacterial generations while keeping host cells viable.Integration of the Viral GenomeUpon infection, bacteriophage lambda attaches to the bacterial surface and injects...
1.0K