Potentially probiotic Limosilactobacillus reuteri from human milk strengthens the gut barrier in T84 cells and a murine enteroid model
3
Issued Date
2023-01-01
Resource Type
ISSN
13645072
eISSN
13652672
Scopus ID
2-s2.0-85147458238
Pubmed ID
36724218
Journal Title
Journal of Applied Microbiology
Volume
134
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Applied Microbiology Vol.134 No.1 (2023)
Suggested Citation
Anjum J., Quach A., Wongkrasant P., Nazir S., Tariq M., Barrett K.E., Zaidi A. Potentially probiotic Limosilactobacillus reuteri from human milk strengthens the gut barrier in T84 cells and a murine enteroid model. Journal of Applied Microbiology Vol.134 No.1 (2023). doi:10.1093/jambio/lxac029 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/81967
Title
Potentially probiotic Limosilactobacillus reuteri from human milk strengthens the gut barrier in T84 cells and a murine enteroid model
Other Contributor(s)
Abstract
Aims: At conception, the infant gut barrier is immature, gradually developing with regular intake of maternal milk. This study addressed whether the barrier-strengthening effect of breast feeding might be attributable, at least in part, to autochthonous beneficial human milk bacteria. Methods and Results: Twelve bacterial strains from the breast milk of Pakistani mothers who underwent cesarean delivery (NPL-88, NPL-157, NPL-179, NPL-181, NPL-388 (Limosilactobacillus reuteri), NPL-76, NPL-495, NPL-504 (Limosilactobacillus fermentum), NPL-415 (Lactobacillus pentosus), NPL-412, NPL-416 (Lactiplantibacilllus plantarum) and NPL-374 (Bifidobacterium longum) were shortlisted based on their tolerance to acidic pH (2.8-4.2) and bile (0.1-0.3%). The effect of these bacteria on gut barrier function in the presence and absence of pathogens was assessed as changes in transepithelial electrical resistance (TEER) in the human T84 colonic epithelial cell line and in murine enteroid-derived monolayers (EDMs). The TEER of T84 cells monolayers rose in the presence of most of the human milk strains, being most pronounced in case of L. reuteri NPL-88 (34% within five h), exceeding the effect of the well-known probiotic L. acidophilus (20%). qRT-PCR, western blot and immunofluorescent staining associated the increase in TEER with enhanced expression of tight junction proteins. Pretreatment of murine EDMs with NPL-88 also largely prevented the ability of the pathogen, Salmonella, to decrease TEER (87 ± 1.50%; P < 0.0001, n = 4). Conclusions: Human milk lactic acid bacteria are potential probiotics that can strengthen gut barrier function and protect breastfed neonates against enteric infections.