Proteomics in gram-negative bacterial outer membrane vesicles.
Gram-negative bacteria constitutively secrete outer membrane vesicles (OMVs) into the extracellular milieu. Recent research in this area has revealed that OMVs may act as intercellular communicasomes in polyspecies communities by enhancing bacterial survival and pathogenesis in hosts. However, the mechanisms of vesicle formation and the pathophysiological roles of OMVs have not been clearly defined. While it is obvious that mass spectrometry-based proteomics offers great opportunities for improving our knowledge of bacterial OMVs, limited proteomic data are available for OMVs. The present review aims to give an overview of the previous biochemical, biological, and proteomic studies in the emerging field of bacterial OMVs, and to give future directions for high-throughput and comparative proteomic studies of OMVs that originate from diverse Gram-negative bacteria under various environmental conditions. This article will hopefully stimulate further efforts to construct a comprehensive proteome database of bacterial OMVs that will help us not only to elucidate the biogenesis and functions of OMVs but also to develop diagnostic tools, vaccines, and antibiotics effective against pathogenic bacteria.
Lee
Eun-Young
EY
Department of Life Science and Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea.
Choi
Dong-Sic
DS
Kim
Kwang-Pyo
KP
Gho
Yong Song
YS
D001425:Bacterial Outer Membrane Proteins / Q000032:analysis*; D001426:Bacterial Proteins / Q000032:analysis*; D020869:Gene Expression Profiling / Q000379:methods*; D006090:Gram-Negative Bacteria / Q000378:metabolism*; D013058:Mass Spectrometry / Q000379:methods*; D022142:Secretory Vesicles / Q000378:metabolism*
D001425:Bacterial Outer Membrane Proteins; D001426:Bacterial Proteins