Publications related to Parasitic worm

Acetate, a metabolic product of Heligmosomoides polygyrus, facilitates intestinal epithelial barrier breakdown in a FFAR2-dependent manner

Nicola Harris, Mario Michael Zaiss, Julia Esser-von Bieren, Lalit Kumar Dubey, Luc Xavier Marie Lebon

Approximately 2 billion people worldwide and a significant part of the domestic livestock are infected with soil-transmitted helminths, of which many establish chronic infections causing substantial eco-nomic and welfare burdens. Beside intensive research ...

2022

New Insights for Parasitic Effects of Label-Free Biosensors Based on Capacitive Micromachined Ultrasonic Transducers

Sandro Carrara, Zhengwen Jiang, Yihe Zhao, Jie Li

Capacitive micromachined ultrasonic transducers (CMUTs) are regarded as an attractive candidate in bio-applications such as imaging and molecule monitoring. However, the previous researches on biochemical sensing are mostly air-coupled application based on ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

An In Vivo Microfluidic Study of Bacterial Load Dynamics and Absorption in the C. elegans Intestine

Martinus Gijs, Thomas Lehnert, Vittorio Viri, Maël Arveiler

Caenorhabditiselegans (C. elegans) has gained importance as a model for studying host-microbiota interactions and bacterial infections related to human pathogens. Assessing the fate of ingested bacteria in the worm's intestine is therefore of great interes ...

MDPI2021

Hookworms Evade Host Immunity by Secreting a Deoxyribonuclease to Degrade Neutrophil Extracellular Traps

Arne Seitz, Romain Guiet, Nicola Harris, Beatrice Volpe, Tiffany Babette Angélique Bouchery, Kathleen Shah, Mati André Marie Moyat, Manuel Kulagin

Hookworms cause a major neglected tropical disease, occurring after larvae penetrate the host skin. Neutrophils are phagocytes that kill large pathogens by releasing neutrophil extracellular traps (NETs), but whether they target hookworms during skin infec ...

CELL PRESS2020

Infection with a small intestinal helminth, Heligmosomoides polygyrus bakeri, consistently alters microbial communities throughout the murine small and large intestine

Nicola Harris, Benjamin John Marsland, Mario Michael Zaiss, Alexis Rapin, Luc Xavier Marie Lebon, Audrey Geneviève Chuat

Increasing evidence suggests that intestinal helminth infection can alter intestinal microbial communities with important impacts on the mammalian host. However, all of the studies to date utilize different techniques to study the microbiome and access dif ...

2020

Immune serum-activated human macrophages coordinate with eosinophils to immobilize Ascaris suum larvae

Nicola Harris, Beatrice Volpe, Julia Esser-von Bieren, Tiffany Babette Angélique Bouchery, Kathleen Shah

Helminth infection represents a major health problem causing approximately 5 million disability-adjusted life years worldwide. Concerns that repeated anti-helminthic treatment may lead to drug resistance render it important that vaccines are developed but ...

WILEY2020

Modelled effects of prawn aquaculture on poverty alleviation and schistosomiasis control

Andrea Rinaldo, Lorenzo Mari, Francisco Javier Perez Saez, Marino Gatto

Recent evidence suggests that snail predators may aid efforts to control the human parasitic disease schistosomiasis by eating aquatic snail species that serve as intermediate hosts of the parasite. Here, potential synergies between schistosomiasis control ...

NATURE PUBLISHING GROUP2019

Automated Platform for Long-Term Culture and High-Content Phenotyping of Single C. elegans Worms

Johan Auwerx, Martinus Gijs, Matteo Cornaglia, Laurent Mouchiroud, Rongrong Xiang, Elena Katsyuba, Hüseyin Baris Atakan

The nematode Caenorhabditis elegans is a suitable model organism in drug screening. Traditionally worms are grown on agar plates, posing many challenges for long-term culture and phenotyping of animals under identical conditions. Microfluidics allows for ' ...

Nature Research2019

Microfluidic and micromechanical in vivo studies of Caenorhabditis elegans

Roger Philippe Krenger

Caenorhabditis elegans is one of the most attractive model organisms in biomedical research for understanding human diseases and for drug testing at a whole-organism level, since many biological pathways and genes have been conserved between itself and hum ...

EPFL2019

Intestinal helminths modulate the gut microbiome

Alexis Rapin

Intestinal parasitic worms (commonly named intestinal helminths) affect close to one quarter of the world population and cause major losses for the livestock industry. These parasites establish chronic infections by modulation the immunity of their host. T ...

EPFL2018

Microfluidic high-content phenotypic screening on a Caenorhabditis elegans model

Maria Cristina Letizia

Caenorhabditis elegans is a performant model system for studying human biological processes and diseases and for pre-clinical phenotyping screenings of compounds. Microfluidics has been instrumental in enabling C. elegans-based drug assays, facilitating th ...

EPFL2018

The microbiota provides colonisation resistance against intestinal helminths by regulating intestinal physiology

Luc Xavier Marie Lebon

Intestinal helminth infections are a global health problem affecting particularly people living in poor countries. Heavy worm burdens can lead to nutritional and cognitive deficiencies. Type-two immunity plays a crucial role in promoting tissue repair and ...

EPFL2017

Inflammatory arthritis and systemic bone loss are attenuated by gastrointestinal helminth parasites

Nicola Harris, Mario Michael Zaiss, Manuel Kulagin

Infections with different helminth species have been observed to ameliorate a variety of chronic inflammatory diseases. Herein, we show that the natural murine helminth species, Heligmosomoides polygyrus bakeri (Hp) is capable of attenuating disease severi ...

Taylor & Francis2017

Heterogeneity in schistosomiasis transmission dynamics

Andrea Rinaldo, Enrico Bertuzzo, Lorenzo Mari, Francisco Javier Perez Saez, Marino Gatto

Simple models of disease propagation often disregard the effects of transmission heterogeneity on the ecological and epidemiological dynamics associated with host-parasite interactions. However, for some diseases like schistosomiasis, a widespread parasiti ...

Academic Press Ltd- Elsevier Science Ltd2017

Only Two Can Tango: Mast Cells Displace Epithelial Cells to Dance with ILC2s

Nicola Harris, Tiffany Babette Angélique Bouchery

Mast cells have been implicated in protective immunity to helminth infection, but the precise mechanism remains unclear. In this issue of Immunity, Shimokawa et al., 2017 report that mast cells are a bridge linking dying epithelial cells with effector type ...

Elsevier2017

Role of myeloid cells in mediating protection against parasitic helminth larvae

Beatrice Volpe

Helminth infections affect around one fourth of the world population living in the poorest regions of our planet. Helminths mainly cause debilitating chronic effects on health, development and nutritional status of infected people. The development of a vac ...

EPFL2017

Exploiting Old Pathogens to Create New Therapeutics

Nicola Harris, Tiffany Babette Angélique Bouchery

Intestinal worms are well known for their potent immuno-modulatory capacity. In a recent study, Navarro et al. (2016) identify a secreted hookworm protein that can suppress allergic responses in both mice and humans. This represents an exciting strategy fo ...

Cell Press2016

Intimate gut interactions: helminths and the microbiota

Nicola Harris

Changing exposure to intestinal helminths, or alterations in our intestinal microbiome, have been independently proposed to underlie the increasing incidence of chronic inflammatory diseases including allergy, autoimmunity and inflammatory bowel disease (I ...

Inst Biochemistry & Cell Biology2016

Archaebacteria in bioactive animal feed, method of making the composition and methods employing the composition

Duncan-Bruce Sutherland, Mario Michael Zaiss

The invention relates to a food supplement comprising or consisting of Archaebacteria, and particularly methanogenic Archaebacteria, to be used as a probiotic adjunct for animal feed. The supplement can be provided to e.g. farmed animals in addition to sta ...

2016

Parasite Proximity Drives the Expansion of Regulatory T Cells in Peyer's Patches following Intestinal Helminth Infection

Nicola Harris, Mario Michael Zaiss, Beatrice Volpe, Ilaria Mosconi, Julia Esser-von Bieren, Lalit Kumar Dubey, Luc Xavier Marie Lebon

Helminth infections are typically chronic in nature; however, the exact molecular mechanisms by which these parasites promote or thwart host immunity remain unclear. Worm expulsion requires the differentiation of CD4(+) T cells into Th2 cells, while regula ...

American Society for Microbiology2015