Article ; Online: Recruitment of heterologous substrates by bacterial secretion systems for transkingdom translocation.
Frontiers in cellular and infection microbiology
2023 Volume 13, Page(s) 1146000
Abstract: Bacterial secretion systems mediate the selective exchange of macromolecules between bacteria and their environment, playing a pivotal role in processes such as horizontal gene transfer or virulence. Among the different families of secretion systems, ... ...
| Abstract | Bacterial secretion systems mediate the selective exchange of macromolecules between bacteria and their environment, playing a pivotal role in processes such as horizontal gene transfer or virulence. Among the different families of secretion systems, Type III, IV and VI (T3SS, T4SS and T6SS) share the ability to inject their substrates into human cells, opening up the possibility of using them as customized injectors. For this to happen, it is necessary to understand how substrates are recruited and to be able to engineer secretion signals, so that the transmembrane machineries can recognize and translocate the desired substrates in place of their own. Other factors, such as recruiting proteins, chaperones, and the degree of unfolding required to cross through the secretion channel, may also affect transport. Advances in the knowledge of the secretion mechanism have allowed heterologous substrate engineering to accomplish translocation by T3SS, and to a lesser extent, T4SS and T6SS into human cells. In the case of T4SS, transport of nucleoprotein complexes adds a bonus to its biotechnological potential. Here, we review the current knowledge on substrate recognition by these secretion systems, the many examples of heterologous substrate translocation by engineering of secretion signals, and the current and future biotechnological and biomedical applications derived from this approach. |
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| MeSH term(s) | Humans ; Bacterial Secretion Systems/genetics ; Bacteria/metabolism ; Virulence ; Bacterial Proteins/genetics ; Bacterial Proteins/metabolism ; Type IV Secretion Systems/metabolism |
| Chemical Substances | Bacterial Secretion Systems ; Bacterial Proteins ; Type IV Secretion Systems |
| Language | English |
| Publishing date | 2023-03-06 |
| Publishing country | Switzerland |
| Document type | Journal Article ; Review ; Research Support, Non-U.S. Gov't |
| ZDB-ID | 2619676-1 |
| ISSN | 2235-2988 ; 2235-2988 |
| ISSN (online) | 2235-2988 |
| ISSN | 2235-2988 |
| DOI | 10.3389/fcimb.2023.1146000 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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