Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted Helminths

ABSTRACT The role of the gut microbiota during coinfection with soil-transmitted helminths (STH) and Plasmodium spp. is poorly understood. We examined peripheral blood and fecal samples from 130 individuals who were either infected with Plasmodium vivax only, coinfected with P. vivax and STH, infect...

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Main Authors: Alice V. Easton, Mayra Raciny-Aleman, Victor Liu, Erica Ruan, Christian Marier, Adriana Heguy, Maria Fernanda Yasnot, Ana Rodriguez, P’ng Loke
Format: Article
Language:English
Published: American Society for Microbiology 2020-10-01
Series:mBio
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/mBio.01705-20
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author Alice V. Easton
Mayra Raciny-Aleman
Victor Liu
Erica Ruan
Christian Marier
Adriana Heguy
Maria Fernanda Yasnot
Ana Rodriguez
P’ng Loke
author_facet Alice V. Easton
Mayra Raciny-Aleman
Victor Liu
Erica Ruan
Christian Marier
Adriana Heguy
Maria Fernanda Yasnot
Ana Rodriguez
P’ng Loke
author_sort Alice V. Easton
collection DOAJ
description ABSTRACT The role of the gut microbiota during coinfection with soil-transmitted helminths (STH) and Plasmodium spp. is poorly understood. We examined peripheral blood and fecal samples from 130 individuals who were either infected with Plasmodium vivax only, coinfected with P. vivax and STH, infected with STH alone, or not infected with either P. vivax or STH. In addition to a complete blood count (CBC) with differential, transcriptional profiling of peripheral blood samples was performed by transcriptome sequencing (RNA-Seq), fecal microbial communities were determined by 16S rRNA gene sequencing, and circulating cytokine levels were measured by bead-based immunoassays. Differences in blood cell counts, including an increased percentage of neutrophils, associated with a transcriptional signature of neutrophil activation, were driven primarily by P. vivax infection. P. vivax infection was also associated with increased levels of interleukin 6 (IL-6), IL-8, and IL-10; these cytokine levels were not affected by STH coinfection. Surprisingly, P. vivax infection was more strongly associated with differences in the microbiota than STH infection. Children infected with only P. vivax exhibited elevated Bacteroides and reduced Prevotella and Clostridiaceae levels, but these differences were not observed in individuals coinfected with STH. We also observed that P. vivax parasitemia was higher in the STH-infected population. When we used machine learning to identify the most important predictors of the P. vivax parasite burden (among P. vivax-infected individuals), bacterial taxa were the strongest predictors of parasitemia. In contrast, circulating transforming growth factor β (TGF-β) was the strongest predictor of the Trichuris trichiura egg burden. This study provides unexpected evidence that the gut microbiota may have a stronger link with P. vivax than with STH infection. IMPORTANCE Plasmodium (malaria) and helminth parasite coinfections are frequent, and both infections can be affected by the host gut microbiota. However, the relationship between coinfection and the gut microbiota is unclear. By performing comprehensive analyses on blood/stool samples from 130 individuals in Colombia, we found that the gut microbiota may have a stronger relationship with the number of P. vivax (malaria) parasites than with the number of helminth parasites infecting a host. Microbiota analysis identified more predictors of the P. vivax parasite burden, whereas analysis of blood samples identified predictors of the helminth parasite burden. These results were unexpected, because we expected each parasite to be associated with greater differences in its biological niche (blood for P. vivax and the intestine for helminths). Instead, we find that bacterial taxa were the strongest predictors of P. vivax parasitemia levels, while circulating TGF-β levels were the strongest predictor of helminth parasite burdens.
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spelling doaj.art-ea1ee9d4557e4aadbe57d74532554d832022-12-21T20:34:45ZengAmerican Society for MicrobiologymBio2150-75112020-10-0111510.1128/mBio.01705-20Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted HelminthsAlice V. Easton0Mayra Raciny-Aleman1Victor Liu2Erica Ruan3Christian Marier4Adriana Heguy5Maria Fernanda Yasnot6Ana Rodriguez7P’ng Loke8Department of Microbiology, New York University School of Medicine, New York, New York, USADepartment of Microbiology, New York University School of Medicine, New York, New York, USADepartment of Microbiology, New York University School of Medicine, New York, New York, USADepartment of Microbiology, New York University School of Medicine, New York, New York, USAGenome Technology Center, Division of Advanced Research Technologies, New York University School of Medicine, New York, New York, USAGenome Technology Center, Division of Advanced Research Technologies, New York University School of Medicine, New York, New York, USACórdoba Microbiological and Biomedical Research Group, Universidad de Córdoba, Montería, ColombiaDepartment of Microbiology, New York University School of Medicine, New York, New York, USADepartment of Microbiology, New York University School of Medicine, New York, New York, USAABSTRACT The role of the gut microbiota during coinfection with soil-transmitted helminths (STH) and Plasmodium spp. is poorly understood. We examined peripheral blood and fecal samples from 130 individuals who were either infected with Plasmodium vivax only, coinfected with P. vivax and STH, infected with STH alone, or not infected with either P. vivax or STH. In addition to a complete blood count (CBC) with differential, transcriptional profiling of peripheral blood samples was performed by transcriptome sequencing (RNA-Seq), fecal microbial communities were determined by 16S rRNA gene sequencing, and circulating cytokine levels were measured by bead-based immunoassays. Differences in blood cell counts, including an increased percentage of neutrophils, associated with a transcriptional signature of neutrophil activation, were driven primarily by P. vivax infection. P. vivax infection was also associated with increased levels of interleukin 6 (IL-6), IL-8, and IL-10; these cytokine levels were not affected by STH coinfection. Surprisingly, P. vivax infection was more strongly associated with differences in the microbiota than STH infection. Children infected with only P. vivax exhibited elevated Bacteroides and reduced Prevotella and Clostridiaceae levels, but these differences were not observed in individuals coinfected with STH. We also observed that P. vivax parasitemia was higher in the STH-infected population. When we used machine learning to identify the most important predictors of the P. vivax parasite burden (among P. vivax-infected individuals), bacterial taxa were the strongest predictors of parasitemia. In contrast, circulating transforming growth factor β (TGF-β) was the strongest predictor of the Trichuris trichiura egg burden. This study provides unexpected evidence that the gut microbiota may have a stronger link with P. vivax than with STH infection. IMPORTANCE Plasmodium (malaria) and helminth parasite coinfections are frequent, and both infections can be affected by the host gut microbiota. However, the relationship between coinfection and the gut microbiota is unclear. By performing comprehensive analyses on blood/stool samples from 130 individuals in Colombia, we found that the gut microbiota may have a stronger relationship with the number of P. vivax (malaria) parasites than with the number of helminth parasites infecting a host. Microbiota analysis identified more predictors of the P. vivax parasite burden, whereas analysis of blood samples identified predictors of the helminth parasite burden. These results were unexpected, because we expected each parasite to be associated with greater differences in its biological niche (blood for P. vivax and the intestine for helminths). Instead, we find that bacterial taxa were the strongest predictors of P. vivax parasitemia levels, while circulating TGF-β levels were the strongest predictor of helminth parasite burdens.https://journals.asm.org/doi/10.1128/mBio.01705-20ColombiaPlasmodium vivaxSTHsoil-transmitted helminthsTrichuris trichiuramalaria
spellingShingle Alice V. Easton
Mayra Raciny-Aleman
Victor Liu
Erica Ruan
Christian Marier
Adriana Heguy
Maria Fernanda Yasnot
Ana Rodriguez
P’ng Loke
Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted Helminths
mBio
Colombia
Plasmodium vivax
STH
soil-transmitted helminths
Trichuris trichiura
malaria
title Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted Helminths
title_full Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted Helminths
title_fullStr Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted Helminths
title_full_unstemmed Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted Helminths
title_short Immune Response and Microbiota Profiles during Coinfection with <named-content content-type="genus-species">Plasmodium vivax</named-content> and Soil-Transmitted Helminths
title_sort immune response and microbiota profiles during coinfection with named content content type genus species plasmodium vivax named content and soil transmitted helminths
topic Colombia
Plasmodium vivax
STH
soil-transmitted helminths
Trichuris trichiura
malaria
url https://journals.asm.org/doi/10.1128/mBio.01705-20
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