TY - JOUR
T1 - Associations between the gut microbiota and host immune markers in pediatric multiple sclerosis and controls
AU - US Network of Pediatric MS Center
AU - Aaen, Greg
AU - Belman, Anita
AU - Benson, Leslie
AU - Casper, Charlie
AU - Chitnis, Tanuja
AU - Gorman, Mark
AU - Harris, Yolanda
AU - Krupp, Lauren
AU - Lotze, Tim E.
AU - Lulu, Sabeen
AU - Ness, Jayne
AU - Olsen, Cody
AU - Roan, Erik
AU - Rodriguez, Moses
AU - Rose, John
AU - Simmons, Timothy C.
AU - Jan-Mendelt Tillema, Tillema
AU - Weber, Wendy
AU - Weinstock-Guttman, Bianca
AU - Tremlett, Helen
AU - Fadrosh, Douglas W.
AU - Faruqi, Ali A.
AU - Hart, Janace
AU - Roalstad, Shelly
AU - Graves, Jennifer
AU - Spencer, Collin M.
AU - Lynch, Susan V.
AU - Zamvil, Scott S.
AU - Waubant, Emmanuelle
N1 - Funding Information:
This work was supported in part by the National MS Society RG4861A3/1 (PI Waubant), National Institutes of Health NS071463 (PI Waubant), The Race to Erase MS (PI Waubant) and the Canada Research Chair program (PI Tremlett). The funding source(s) had no role in the study design, collection, analysis or interpretation of the data, or in the decision to submit the article for publication.
PY - 2016/9/21
Y1 - 2016/9/21
N2 - Background: As little is known of association(s) between gut microbiota profiles and host immunological markers, we explored these in children with and without multiple sclerosis (MS). Methods: Children ≤18 years provided stool and blood. MS cases were within 2-years of onset. Fecal 16S rRNA gene profiles were generated on an Illumina Miseq platform. Peripheral blood mononuclear cells were isolated, and Treg (CD4+CD25hiCD127lowFoxP3+) frequency and CD4+ T-cell intracellular cytokine production evaluated by flow cytometry. Associations between microbiota diversity, phylum-level abundances and immune markers were explored using Pearson's correlation and adjusted linear regression. Results: Twenty-four children (15 relapsing-remitting, nine controls), averaging 12.6 years were included. Seven were on a disease-modifying drug (DMD) at sample collection. Although immune markers (e.g. Th2, Th17, Tregs) did not differ between cases and controls (p > 0.05), divergent gut microbiota associations occurred; richness correlated positively with Th17 for cases (r = +0.665, p = 0.018), not controls (r = -0.644, p = 0.061). Bacteroidetes inversely associated with Th17 for cases (r = -0.719, p = 0.008), not controls (r = +0.320, p = 0.401). Fusobacteria correlated with Tregs for controls (r = +0.829, p = 0.006), not cases (r = -0.069, p = 0.808). Conclusions: Our observations motivate further exploration to understand disruption of the microbiota-immune balance so early in the MS course.
AB - Background: As little is known of association(s) between gut microbiota profiles and host immunological markers, we explored these in children with and without multiple sclerosis (MS). Methods: Children ≤18 years provided stool and blood. MS cases were within 2-years of onset. Fecal 16S rRNA gene profiles were generated on an Illumina Miseq platform. Peripheral blood mononuclear cells were isolated, and Treg (CD4+CD25hiCD127lowFoxP3+) frequency and CD4+ T-cell intracellular cytokine production evaluated by flow cytometry. Associations between microbiota diversity, phylum-level abundances and immune markers were explored using Pearson's correlation and adjusted linear regression. Results: Twenty-four children (15 relapsing-remitting, nine controls), averaging 12.6 years were included. Seven were on a disease-modifying drug (DMD) at sample collection. Although immune markers (e.g. Th2, Th17, Tregs) did not differ between cases and controls (p > 0.05), divergent gut microbiota associations occurred; richness correlated positively with Th17 for cases (r = +0.665, p = 0.018), not controls (r = -0.644, p = 0.061). Bacteroidetes inversely associated with Th17 for cases (r = -0.719, p = 0.008), not controls (r = +0.320, p = 0.401). Fusobacteria correlated with Tregs for controls (r = +0.829, p = 0.006), not cases (r = -0.069, p = 0.808). Conclusions: Our observations motivate further exploration to understand disruption of the microbiota-immune balance so early in the MS course.
KW - 16S rRNA
KW - Case-control study
KW - Disease-modifying drugs
KW - Gut microbiota
KW - Immune markers
KW - Microbiota-immune balance
KW - Pediatric multiple sclerosis
KW - Risk factors
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U2 - 10.1186/s12883-016-0703-3
DO - 10.1186/s12883-016-0703-3
M3 - Article
AN - SCOPUS:84988462424
VL - 16
JO - BMC Neurology
JF - BMC Neurology
SN - 1471-2377
IS - 1
M1 - 182
ER -