Acinetobacter Baumannii Phages: Past, Present and Future

Qihang Tu1, Mingfang Pu1, Yahao Li2

  • 1College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.

Viruses
|March 30, 2023
PubMed

Insights

Acinetobacter baumannii (A. baumannii) infections are increasing due to multi-drug resistance. This study explores A. baumannii phages as a potential treatment, discussing their properties, host interactions, and therapeutic applications.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Bacteriology

Background:

  • Acinetobacter baumannii is a significant clinical pathogen known for its multi-drug resistance (MDR).
  • The rise in MDR A. baumannii infections necessitates novel therapeutic strategies.
  • Bacteriophage therapy presents a promising alternative to conventional antibiotics.

Purpose of the Study:

  • To review the drug resistance patterns of A. baumannii.
  • To describe the characteristics of A. baumannii phages and their host interactions.
  • To evaluate the potential of A. baumannii phage therapy in clinical settings.

Main Methods:

  • Literature review of A. baumannii drug resistance.
  • Analysis of A. baumannii phage properties and host-phage interactions.
  • Discussion of current and future applications of A. baumannii phage therapy.

Main Results:

  • A. baumannii exhibits significant multi-drug resistance, complicating treatment options.
  • A. baumannii phages possess diverse properties suitable for therapeutic use.
  • Phage therapy demonstrates potential in combating A. baumannii infections.

Conclusions:

  • Phage therapy offers a viable strategy against MDR A. baumannii.
  • Further research and clinical trials are needed to optimize A. baumannii phage therapy.
  • Understanding phage-host dynamics is crucial for successful therapeutic application.

Related Concept Videos

DNA Bacteriophages01:26

DNA Bacteriophages

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...
72
Lytic Cycle of Bacteriophages01:30

Lytic Cycle of Bacteriophages

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...
71.3K
Viruses of Archaea01:29

Viruses of Archaea

Archaeal viruses play a crucial role in the ecosystems of extremophilic archaea, particularly those belonging to the phyla Euryarchaeota and Crenarchaeota. By shaping host evolution and facilitating gene transfer, these viruses influence microbial communities and contribute to genetic diversity in extreme environments. The archaea they infect thrive in acidic hot springs and hydrothermal vents characterized by high temperatures and low pH. Archaeal viruses exhibit remarkable structural...
39
Viral Replication: Lysogenic Cycle01:16

Viral Replication: Lysogenic Cycle

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...
98
Lysogenic Cycle of Bacteriophages00:43

Lysogenic Cycle of Bacteriophages

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...
62.7K
Viral Replication: Lytic Cycle01:20

Viral Replication: Lytic Cycle

Bacteriophages, or phages, are viruses that specifically infect bacteria. Among them, T-even bacteriophages, such as T4, exhibit a well-characterized lytic replication cycle in Escherichia coli (E. coli). This process ensures the rapid proliferation of the virus while ultimately leading to the destruction of the bacterial host.Attachment and DNA InjectionThe infection process begins with the recognition and binding of the T4 phage to the E. coli cell surface. Tail fibers of the phage...
99