Exploring the potential of Lactobacillus rhamnosus as gluten-digesting bacteria.

Area of Science:

• Microbiology and Immunology
• Gastroenterology
• Bioinformatics

Background:

• Celiac disease (CeD) is an autoimmune disorder triggered by gluten ingestion.
• Current management primarily relies on strict gluten-free diets.
• There is a need for adjuvant therapies to improve quality of life and manage CeD.

Purpose of the Study:

• To investigate the potential of Lactobacillus rhamnosus as a gluten-digesting probiotic.
• To identify specific enzymes within L. rhamnosus responsible for gluten degradation.
• To provide a basis for developing novel therapeutic strategies for CeD.

Main Methods:

• Bioinformatic analysis of 49 L. rhamnosus genome assemblies.
• Genome annotation using RAST and pan-genome analysis with BPGA.
• Identification and domain analysis of peptidase genes using BlastKOALA, Prokka, and NCBI-CD search.

Main Results:

• Sixty-one peptidases were identified in L. rhamnosus genomes.
• Nine specific peptidases showed domain homology to known gluten-digesting enzymes.
• These enzymes are potential candidates for degrading toxic gliadin peptides in CeD.

Conclusions:

• Lactobacillus rhamnosus possesses enzymes with gluten-degrading potential.
• This probiotic may offer a novel therapeutic approach for reducing gluten toxicity in CeD.
• Further research on L. rhamnosus could lead to promising CeD treatment options.