Targeted delivery using membrane vesicles in prokaryotes

Yosuke Tashiro1,2, Kotaro Takaki1, Hiroyuki Futamata1,2,3

  • 1Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, Hamamatsu, Shizuoka 432-8561, Japan.

Insights

Prokaryotes secrete membrane vesicles (MVs) that transfer molecules like enzymes and genetic material between microbes. These MVs play key roles in microbial interactions and communication.

Area of Science:

  • Microbiology
  • Cell Biology

Background:

  • Membrane vesicles (MVs) are lipid bilayer spheres secreted by prokaryotes.
  • MVs are involved in stress response, virulence, biofilm formation, and inter-microbial communication.

Purpose of the Study:

  • To review microbial interactions mediated by MVs.
  • To discuss the selective delivery of MV contents to target microbial cells.

Main Methods:

  • Literature review of studies on microbial membrane vesicles.
  • Analysis of MV-mediated content transfer mechanisms.

Main Results:

  • MVs contain and transfer high concentrations of enzymes, genetic material, and signals.
  • MVs facilitate bactericidal effects, horizontal gene transfer, and quorum sensing.
  • Evidence suggests MVs selectively interact with specific microbial species for content delivery.

Conclusions:

  • Membrane vesicles are crucial mediators of microbial interactions and communication.
  • MV-mediated selective delivery highlights their sophisticated role in microbial ecosystems.

Related Concept Videos

Replication in Prokaryotes02:35

Replication in Prokaryotes

Overview
97.5K
Replication in Prokaryotes01:32

Replication in Prokaryotes

DNA replication has three main steps: initiation, elongation, and termination. Replication in prokaryotes begins when initiator proteins bind to the single origin of replication (ori) on the cell's circular chromosome. Replication then proceeds around the entire circle of the chromosome in each direction from the two replication forks, resulting in two DNA molecules.
Many Proteins Work Together to Replicate the Chromosome
Replication is coordinated and carried out by a host of specialized...
27.7K
Prokaryotic Transcriptional Activators and Repressors01:58

Prokaryotic Transcriptional Activators and Repressors

The organization of prokaryotic genes in their genome is notably different from that of eukaryotes. Prokaryotic genes are organized, such that the genes for proteins involved in the same biochemical process or function are located together in groups. This group of genes, along with their regulatory elements, are collectively known as an operon. The functional genes in an operon are transcribed together to give a single strand of mRNA known as polycistronic mRNA.
Transcription of prokaryotic...
25.2K
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes02:16

Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes

The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
15.5K
Fusion of Secretory Vesicles with the Plasma Membrane01:26

Fusion of Secretory Vesicles with the Plasma Membrane

Proteins and neurotransmitters in secretory vesicles can be released from a cell upon vesicle docking, priming, and fusion with the plasma membrane. Vesicles are docked and primed in preparation for the quick exocytosis of their contents in response to a stimulus. The fusion process is mainly carried out by a SNAP Receptor or SNARE complex, consisting of synaptobrevin, syntaxin-1, and SNAP-25.
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
16.6K
Prokaryotic Cells01:51

Prokaryotic Cells

Prokaryotes are small unicellular organisms that include the domains—Archaea and Bacteria. Bacteria include many common organisms, such as Salmonella and E. coli, while the Archaea include extremophiles that live in harsh environments, such as volcanic springs.
Like eukaryotic cells, all prokaryotic cells are surrounded by a plasma membrane, have genetic material in the form of single, circular DNA, a cytoplasm that fills the interior of the cell, and ribosomes that synthesize proteins....
133.7K