Cited by 27Gut microbiota and healthInfant Nutrition and HealthProbiotics and Fermented Foods

Gut Microbiota and Immune Modulatory Properties of Human Breast Milk Streptococcus salivarius and S. parasanguinis Strains

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Li, Shuo, Li, Na, Wang, Chenwei, Zhao, Yi, Cao, Jie, Li, Xuejing, Zhang, Ziyi, Li, Yue +7 more·2022·Frontiers in Nutrition

Abstract

Human breast milk Streptococcus spp. are transferred to infant guts via breast feeding, but their effects on the gut microbiota and immunity remain unclear. In this study, we characterized gut microbiota and immune modulatory properties of human breast milk S. salivarius F286 and S. parasanguinis F278 that had been shown to be able to colonize gut. The two Streptococcus strains were orally administered to mouse pups individually at 1 × 10 7 cells/day from postnatal Days 1 to 21. At postnatal week 3 (the weaning period), S. salivarius F286 reduced the colonic microbiota α-diversity, increased 21 amplicon sequence variants (ASVs), including bacteria from Akkermansia, Intestinimonas, and Lachnospiraceae, and decreased 52 ASVs, including bacteria from Eubacterium, Bifidobacterium, Escherichia-Shigella, and Turicibacter; however, S. parasanguinis F278 didn't change the colonic microbiota. Both Streptococcus strains reduced the ileal mRNA expression of cytokine/transcription factor representatives of T helper (Th) cells, including IFN-γ (Th1), Gata3 (Th2), and TGF-β (Treg) in 2-week-old suckling mice, and promoted the ileal expression of Foxp3 and TGF-β, which are representatives of anti-inflammatory Treg cells, in 3-week-old weaning mice. The two Streptococcus strains exhibited anti-inflammatory potential when incubated in vitro with human peripheral blood mononuclear cells and TNF-α-treated gut epithelial HT29 cells. In C. elegans, both strains activated immune response genes, which was associated with their lifespan-prolonging effects. Our results suggest that S. salivarius F286 and S. parasanguinis F278 may exert regulatory (anti-inflammatory) roles in gut immunity and S. salivarius F286 can modulate gut microbiota, and highlight the probiotic potential of milk S. salivarius and S. parasanguinis strains.

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Crossref · 10.3389/fnut.2022.798403

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  • The adhesion capacity to the epithelium provides for the ability of bacterial strains to continue their antimicrobial activities over time by maintaining their presence in the host.

    “Furthermore, the adhesion capacity to the epithelium provides for the ability of bacterial strains to continue their antimicrobial activities over time by maintaining their presence in the host [14, 15].”

    From EVALUATION OF ADHESIVE AND AGGREGATION PROPERTIES OF LACTIC ACID BACTERIA ISOLATED FROM DIFFERENT BIOTOPES (2025) · cites this paper as [14]

    The Results section on C. elegans reports increased expression of antimicrobial peptide genes, and the HT29-cell Results section reports anti-inflammatory effects. Neither addresses epithelial adhesion or whether adhesion maintains bacterial presence and antimicrobial activity over time. Searches for adhesion, adherence, and colonization found no passage establishing that link. (LLM, conf=0.77)

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Authors
Li, S., Li, N., Wang, C., Zhao, Y., Cao, J., Li, X., Zhang, Z., Li, Y., Yang, X., Wang, X., Che, C., Zhao, Y., Wang, L., Zhao, L., & Shen, J.
Affiliations
  • Shanghai Jiao Tong University (CN)
  • Anhui Science and Technology University (CN)
Corresponding author
Shen, Jian
Venue
Frontiers in Nutrition
Published
2022-02-22
Volume
9
Pages
798403-798403
ISSN
2296-861X (ISSN-L)
OpenAlex
W4213045661
Cited by
26
References
84
Citations by year
2026: 3 · 2025: 5 · 2024: 9 · 2023: 5 · 2022: 4
FWCI
1.88
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Nutrition (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
Keywords
breast milk, Streptococcus salivarius, Streptococcus parasanguinis, gut microbiota, immunomodulation, probiotics, anti-inflammatory activity, regulatory T cells, Akkermansia, Foxp3, lifespan extension, Caenorhabditis elegans, infant gut colonization

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