Saccharomyces boulardii promoters for control of gene expression in vivo.
Microb Cell Fact
; 23(1): 16, 2024 Jan 07.
Article
in En
| MEDLINE
| ID: mdl-38185666
ABSTRACT
BACKGROUND:
Interest in the use of engineered microbes to deliver therapeutic activities has increased in recent years. The probiotic yeast Saccharomyces boulardii has been investigated for production of therapeutics in the gastrointestinal tract. Well-characterised promoters are a prerequisite for robust therapeutic expression in the gut; however, S. boulardii promoters have not yet been thoroughly characterised in vitro and in vivo.RESULTS:
We present a thorough characterisation of the expression activities of 12 S. boulardii promoters in vitro in glucose, fructose, sucrose, inulin and acetate, under both aerobic and anaerobic conditions, as well as in the murine gastrointestinal tract. Green fluorescent protein was used to report on promoter activity. Promoter expression was found to be carbon-source dependent, with inulin emerging as a favourable carbon source. Furthermore, relative promoter expression in vivo was highly correlated with expression in sucrose (R = 0.99).CONCLUSIONS:
These findings provide insights into S. boulardii promoter activity and aid in promoter selection in future studies utilising S. boulardii to produce therapeutics in the gut.
Full text:
1
Database:
MEDLINE
Main subject:
Saccharomyces boulardii
Limits:
Animals
Language:
En
Journal:
Microb Cell Fact
Journal subject:
BIOTECNOLOGIA
/
MICROBIOLOGIA
Year:
2024
Type:
Article
Affiliation country:
Denmark