Abstract:
:The gut microbiota can significantly affect the function of the intestinal barrier. Some intestinal probiotics (such as Lactobacillus, Bifidobacteria, a few Escherichia coli strains, and a new generation of probiotics including Bacteroides thetaiotaomicron and Akkermansia muciniphila) can maintain intestinal epithelial homeostasis and promote health. This review first summarizes probiotics' regulation of the intestinal epithelium via their surface compounds. Surface layer proteins, flagella, pili and capsular polysaccharides constitute microbial-associated molecular patterns and specifically bind to pattern recognition receptors, which can regulate signaling pathways to produce cytokines or inhibit apoptosis, thereby attenuating inflammation and enhancing the function of the gut epithelium. The review also explains the effects of metabolites (such as secreted proteins, organic acids, indole, extracellular vesicles and bacteriocins) of probiotics on host receptors and the mechanisms by which these metabolites regulate gut epithelial barrier function. Previous reviews summarized the role of the surface macromolecules or metabolites of gut microbes (including both probiotics and pathogens) in human health. However, these reviews were mostly focused on the interactions between these substances and the intestinal mucosal immune system. In the current review, we only focused on probiotics and discussed the molecular interaction between these bacteria and the gut epithelial barrier.
journal_name
Microb Cell Factjournal_title
Microbial cell factoriesauthors
Liu Q,Yu Z,Tian F,Zhao J,Zhang H,Zhai Q,Chen Wdoi
10.1186/s12934-020-1289-4subject
Has Abstractpub_date
2020-02-05 00:00:00pages
23issue
1issn
1475-2859pii
10.1186/s12934-020-1289-4journal_volume
19pub_type
杂志文章,评审abstract:BACKGROUND:In our previous study, the feasibility of Rubisco-based engineered E. coli (that contains heterologous phosphoribulokinase (PrkA) and Rubisco) for in situ CO2 recycling during the fermentation of pentoses or hexoses was demonstrated. Nevertheless, it is perplexing to see that only roughly 70 % of the carbon ...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-016-0530-7
更新日期:2016-08-02 00:00:00
abstract:BACKGROUND:The sesquiterpenoid abscisic acid (ABA) is mostly known for regulating developmental processes and abiotic stress responses in higher plants. Recent studies show that ABA also exhibits a variety of pharmacological activities. Affordable and sustainable production will be required to utilize the compound in a...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-019-1257-z
更新日期:2019-11-25 00:00:00
abstract:BACKGROUND:Lactococcus lactis, a lactic acid bacterium traditionally used to ferment milk and manufacture cheeses, is also, in the biotechnology field, an interesting host to produce proteins of medical interest, as it is "Generally Recognized As Safe". Furthermore, as L. lactis naturally secretes only one major endoge...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-015-0271-z
更新日期:2015-07-16 00:00:00
abstract:BACKGROUND:Recent years have seen a huge growth in the market of industrial yeasts with the need for strains affording better performance or to be used in new applications. Stress tolerance of commercial Saccharomyces cerevisiae yeasts is, without doubt, a trait that needs improving. Such trait is, however, complex, an...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-9-56
更新日期:2010-07-13 00:00:00
abstract:BACKGROUND:Sesquiterpenes are a class of natural products with a diverse range of attractive industrial proprieties. Due to economic difficulties of sesquiterpene production via extraction from plants or chemical synthesis there is interest in developing alternative and cost efficient bioprocesses. The hydrocarbon α-sa...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-11-117
更新日期:2012-08-31 00:00:00
abstract::The success of recombinant protein expression seems unpredictable and even good yields of soluble proteins do not guarantee the correct folding. The search for soluble constructs can be performed by exploiting libraries and speeded up by automation, but these approaches are money and time consuming and the tags used f...
journal_title:Microbial cell factories
pub_type: 社论
doi:10.1186/1475-2859-3-12
更新日期:2004-10-07 00:00:00
abstract:BACKGROUND:Activation of silent biosynthetic gene clusters (BGCs) in marine-derived actinomycete strains is a feasible strategy to discover bioactive natural products. Actinoalloteichus sp. AHMU CJ021, isolated from the seashore, was shown to contain an intact but silent caerulomycin A (CRM A) BGC-cam in its genome. Th...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-020-01418-w
更新日期:2020-08-06 00:00:00
abstract:BACKGROUND:Bacillus subtilis has been widely used as a host for heterologous protein expression in food industry. B. subtilis ATCC6051 is an alternative expression host for the production of industrial enzymes, and exhibits favorable growth properties compared to B. subtilis 168. Extracellular expression of pullulanase...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-018-1011-y
更新日期:2018-10-22 00:00:00
abstract:BACKGROUND:Methane-utilizing bacteria (methanotrophs) are capable of growth on methane and are attractive systems for bio-catalysis. However, the application of natural methanotrophic strains to large-scale production of value-added chemicals/biofuels requires a number of physiological and genetic alterations. An accur...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-015-0377-3
更新日期:2015-11-25 00:00:00
abstract:BACKGROUND:β-Ionone is a fragrant terpenoid that generates a pleasant floral scent and is used in diverse applications as a cosmetic and flavoring ingredient. A growing consumer desire for natural products has increased the market demand for natural β-ionone. To date, chemical extraction from plants remains the main ap...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-018-0984-x
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Numerous challenges remain to achieve industrially competitive space-time yields for bio-oxidations. The ability to rapidly screen bioconversion reactions for characterization and optimization is of major importance in bioprocess development and biocatalyst selection; studies at conventional lab scale are ti...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-017-0788-4
更新日期:2017-10-10 00:00:00
abstract:BACKGROUND:Intracellular metabolism of glucocorticoid hormones plays an important role in the pathogenesis of metabolic syndrome and regulates, among many physiological processes, collagen metabolism in skin. At the peripheral level the concentration of active glucocorticoids is mainly regulated by the 11β-hydroxystero...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-016-0450-6
更新日期:2016-03-15 00:00:00
abstract:BACKGROUND:The classic AOX1 replacement approach is still one of the most often used techniques for expression of recombinant proteins in the methylotrophic yeast Pichia pastoris. Although this approach is largely successful, it frequently delivers clones with unpredicted production characteristics and a work-intense s...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-016-0486-7
更新日期:2016-05-20 00:00:00
abstract:BACKGROUND:L-tryptophan is an aromatic amino acid widely used in the food, chemical and pharmaceutical industries. In Escherichia coli, L-tryptophan is synthesized from phosphoenolpyruvate and erythrose 4-phosphate by enzymes in the shikimate pathway and L-tryptophan branch pathway, while L-serine and phosphoribosylpyr...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-11-30
更新日期:2012-03-02 00:00:00
abstract:BACKGROUND:4-Hydroxycinnamaldehydes are important intermediates in several secondary metabolism pathways, including those involved in the biosynthesis of phenolic acids, flavonoids, terpenoids and monolignols. They are also involved in the biosynthesis and degradation of lignins, which are important limiting factors du...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-015-0309-2
更新日期:2015-08-12 00:00:00
abstract:BACKGROUND:Bacterial biofilms are a preferred mode of growth for many types of microorganisms in their natural environments. The ability of pathogens to integrate within a biofilm is pivotal to their survival. The possibility of biofilm formation in Lactobacillus communities is also important in various industrial and ...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-015-0283-8
更新日期:2015-07-07 00:00:00
abstract:BACKGROUND:Cellulosic biomass especially agricultural/wood residues can be utilized as feedstock to cost-effectively produce fuels, chemicals and bulk industrial enzymes, which demands xylose utilization from microbial cell factories. While previous works have made significant progress in improving microbial conversion...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-015-0206-8
更新日期:2015-02-21 00:00:00
abstract::All of humans and other mammalian species are colonized by some types of microorganisms such as bacteria, archaea, unicellular eukaryotes like fungi and protozoa, multicellular eukaryotes like helminths, and viruses, which in whole are called microbiota. These microorganisms have multiple different types of interactio...
journal_title:Microbial cell factories
pub_type: 杂志文章,评审
doi:10.1186/s12934-020-01483-1
更新日期:2020-11-26 00:00:00
abstract:BACKGROUND:Calreticulin (CRT) resides in the endoplasmic reticulum (ER) and functions to chaperone proteins, ensuring proper folding, and intracellular Ca(2+) homeostasis. Emerging evidence shows that CRT is a multifunctional protein with significant roles in physiological and pathological processes with presence both ...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-015-0356-8
更新日期:2015-10-15 00:00:00
abstract:BACKGROUND:A stereoisomer of inositol, scyllo-inositol (SI), has been regarded as a promising therapeutic agent for Alzheimer's disease. However, this compound is relatively rare, whereas another stereoisomer of inositol, myo-inositol (MI) is abundant in nature. Bacillus subtilis 168 has the ability to metabolize inosi...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-017-0682-0
更新日期:2017-04-21 00:00:00
abstract:: The aim of this work is to present a critical review on slurry bioreactors (SB) and their application to bioremediation of soils and sediments polluted with recalcitrant and toxic compounds. The scope of the review encompasses the following subjects: (i) process fundamentals of SB and analysis of advantages and disad...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-7-5
更新日期:2008-02-29 00:00:00
abstract:BACKGROUND:D-Lactate is a valued chemical which can be produced by some bacteria including Klebsiella pneumoniae. However, only a few studies have focused on K. pneumoniae for D-lactate production with a significant amount of by-products, which complicated the purification process and decreased the yield of D-lactate. ...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-017-0822-6
更新日期:2017-11-21 00:00:00
abstract:BACKGROUND:In past years research has focused on the development of alternative Gram positive bacterial expression systems to produce industrially relevant proteins. Brevibacillus choshinensis is an easy to handle non-sporulating bacterium, lacking extracellular proteases, that has been already shown to provide a high ...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-12-12
更新日期:2013-02-01 00:00:00
abstract:BACKGROUND:Heterologous expression of biosynthetic gene clusters of natural microbial products has become an essential strategy for titer improvement and pathway engineering of various potentially-valuable natural products. A Streptomyces artificial chromosomal conjugation vector, pSBAC, was previously successfully app...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-017-0708-7
更新日期:2017-05-31 00:00:00
abstract:BACKGROUND:Under N-limiting conditions, Saccharomyces cerevisiae strains display a substantial variability in their biomass yield from consumed nitrogen -in particular wine yeasts exhibit high growth abilities- that is correlated with their capacity to complete alcoholic fermentation, a trait of interest for fermented ...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-014-0109-0
更新日期:2014-08-19 00:00:00
abstract:BACKGROUND:Lactic acid bacteria (LAB) are known to have a significant ability to colonize the human intestinal tract and adhere to the surface of intestinal epithelial cells. Among the various lactic acid bacteria, exopolysaccharide (EPS) producing strains are known to provide a variety of health benefits for their hos...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-019-1158-1
更新日期:2019-06-13 00:00:00
abstract:BACKGROUND:The production of high yields of recombinant proteins is an enduring bottleneck in the post-genomic sciences that has yet to be addressed in a truly rational manner. Typically eukaryotic protein production experiments have relied on varying expression construct cassettes such as promoters and tags, or cultur...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-8-10
更新日期:2009-01-29 00:00:00
abstract:BACKGROUND:Molecular mechanisms generating genetic variation provide the basis for evolution and long-term survival of a population in a changing environment. In stable, laboratory conditions, the variation-generating mechanisms are dispensable, as there is limited need for the cell to adapt to adverse conditions. In f...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-11-11
更新日期:2012-01-20 00:00:00
abstract:BACKGROUND:Numerous strategies have been developed for the display of heterologous proteins in the surface of live bacterial carriers, which can be used as vaccines, immune-modulators, cancer therapy or bioremediation. Bacterial biofilms have emerged as an interesting approach for the expression of proteins of interest...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/s12934-016-0532-5
更新日期:2016-08-11 00:00:00
abstract:BACKGROUND:The efficiency of biotechnological production processes depends on selecting the best performing microbial strain and the optimal cultivation conditions. Thus, many experiments have to be conducted, which conflicts with the demand to speed up drug development processes. Consequently, there is a great need fo...
journal_title:Microbial cell factories
pub_type: 杂志文章
doi:10.1186/1475-2859-9-86
更新日期:2010-11-13 00:00:00