Studying Inherited Immunity in a <em>Caenorhabditis elegans</em> Model of Microsporidia Infection

Alexandra  R. Willis; Hala Tamim El Jarkass; Aaron W. Reinke

doi:10.3791/63636

Estudio de la inmunidad hereditaria en un modelo de Caenorhabditis elegans de infección ...

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Immunology and Infection

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JoVE Journal Immunology and Infection

Studying Inherited Immunity in a Caenorhabditis elegans Model of Microsporidia Infection

Estudio de la inmunidad hereditaria en un modelo de Caenorhabditis elegans de infección por microsporidios

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09:24 min

April 6, 2022

DOI: 10.3791/63636-v

Alexandra R. Willis¹, Hala Tamim El Jarkass¹, Aaron W. Reinke¹

¹Department of Molecular Genetics,University of Toronto

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Overview

This study investigates inherited immunity in Caenorhabditis elegans infected by the microsporidian parasite Nematocida parisii. The research aims to uncover the mechanisms behind intergenerational immunity and the role of specific molecules in this process.

Key Study Components

Area of Science

Neuroscience
Microbiology
Genetics

Background

Inherited immunity is a poorly understood epigenetic phenomenon.
C. elegans serves as a genetically tractable model for studying this phenomenon.
Understanding immunity transmission across generations is crucial for insights into host-pathogen interactions.
The study utilizes a simple model organism with a short generation time.

Purpose of Study

To explore how immunity to microsporidia is inherited in offspring.
To identify the molecular mechanisms involved in intergenerational immunity.
To establish protocols for studying inherited immunity in C. elegans.

Methods Used

Infection of P0 C. elegans with a controlled low spore dose of Nematocida parisii.
Preparation of nematode growth medium plates for experiments.
Assaying progeny for resistance to the pathogen.
Utilizing available genetic tools for molecular analysis.

Main Results

Offspring of infected C. elegans show increased resistance to Nematocida parisii.
Protocols established allow for effective study of inherited immunity.
Findings contribute to understanding the epigenetic basis of immunity.
Research highlights the potential for using C. elegans in immunity studies.

Conclusions

The study provides insights into the mechanisms of inherited immunity.
It emphasizes the importance of C. elegans as a model for genetic research.
Future research can build on these findings to further explore immunity transmission.

Frequently Asked Questions

What is inherited immunity?

Inherited immunity refers to the ability of offspring to resist pathogens due to immune responses established in their parents.

Why use C. elegans for studying immunity?

C. elegans is a simple, genetically tractable model organism with a short generation time, making it ideal for inheritance studies.

What is Nematocida parisii?

Nematocida parisii is a microsporidian parasite that infects C. elegans and serves as a model for studying host-pathogen interactions.

How does the protocol ensure enough progeny for experiments?

By using a low spore dose during infection, the protocol minimizes impact on the parent's ability to produce progeny.

What are the implications of this research?

The findings may enhance our understanding of how immunity is passed down and could inform strategies for disease resistance in other organisms.

What techniques are used in this study?

The study employs infection protocols, genetic analysis, and molecular techniques to investigate inherited immunity.

La infección de Caenorhabditis elegans por el parásito microsporidio Nematocida parisii permite a los gusanos producir descendencia que es altamente resistente al mismo patógeno. Este es un ejemplo de inmunidad hereditaria, un fenómeno epigenético poco conocido. El presente protocolo describe el estudio de la inmunidad hereditaria en un modelo de gusano genéticamente tratable.

Estos protocolos permiten el estudio de la inmunidad hereditaria a los microsporidios. Las técnicas explicadas aquí pueden ayudarnos a comprender cómo se transmite la inmunidad a través de las generaciones y las moléculas que determinan la inmunidad a los microsporidios en la descendencia. C.elegans es un modelo simple y genéticamente tratable con un corto tiempo de generación para el ensayo de la herencia.

Las muchas herramientas disponibles para el gusano se pueden utilizar para descubrir los mecanismos moleculares de la inmunidad intergeneracional. Al infectar animales P0, use una dosis baja de esporas que no afecte significativamente la capacidad de los padres para producir progenie. Esto asegura que el blanqueamiento produzca suficientes animales F1 para experimentos aguas abajo Para comenzar, mueva el número requerido de placas de medio de crecimiento de nematodos no sembrados de 10 centímetros de cuatro grados Celsius a temperatura ambiente un día antes de las infecciones planificadas.

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