Regulation profile of the intestinal peptide transporter 1 (PepT1).
Level 5 - mechanism / opinion, no new human data
Narrative review of biological mechanisms and drug transport without systematic review methodology.
PubMed 29263649 · doi:10.2147/DDDT.S151725
What was done
This paper provides a narrative review summarizing literature and research progress on the intestinal peptide transporter 1 (PepT1), focusing on its transcriptional and post-transcriptional regulation and its role in dietary peptide absorption and prodrug design.
What was found
The abstract reports no quantitative experimental data or numerical outcomes. It notes that PepT1 facilitates the absorption of over 400 dipeptides and 8,000 tripeptides from dietary proteins as well as structurally related peptidomimetic drugs (such as anticancer and antiviral agents), and that its expression and activity are regulated by multiple factors at the transcriptional and post-transcriptional levels.
Why it matters
Understanding PepT1 regulation aids in optimizing dietary peptide absorption and informs rational prodrug design to enhance oral bioavailability for peptide-like therapeutics.
Limits
As a narrative review, the paper lacks systematic search criteria, quality appraisal of included studies, and primary quantitative experimental or clinical data in the abstract.
Cited by
- supports The human intestinal wall possesses specific transport systems capable of absorbing small peptides intact.