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Published on: June 2, 2023
Mitochondrial Bioenergetics and Dynamics During Infection
Cynthia Soultawi1, Yasmina Fortier1, Calaiselvy Soundaramourty1
1CNRS FR3636, Faculty of Medecine des Saint-Pères, Paris Descartes University, Paris, France.
Abstract:
Microbes have developed a series of strategies to overcome the defense mechanisms of the infected host. During pathogen-host coevolution, they develop strategy to manipulate cellular machinery particularly in subverting mitochondrion function. Mitochondria are highly dynamic organelles that constantly remodel their structure. In particular, shaping and cellular distribution of the mitochondrial network is maintained in large part by the conserved activities of mitochondrial division, fusion, motility, and tethering. Mitochondria have been long recognized for their role in providing energy production, calcium metabolism, and apoptosis. More recently, mitochondria have been also shown to serve as a platform for innate immune response. In this context, mitochondrial dynamics and shaping is not only essential to maintain cristae structure and bioenergetic to fuel cellular demands but contribute to regulate cellular function such as innate immune response and mitochondrial permeabilization. Due to their key role in cell survival, mitochondria represent attractive targets for pathogens. Therefore, microbes by manipulating mitochondrial dynamics may escape to host cellular control. Herein, we describe how mitochondrial bioenergetics, dynamics, and shaping are impacted during microbe infections and how this interplay benefits to pathogens contributing to the diseases.
Insights
Microbes manipulate host mitochondria, altering their energy production and structure. This pathogen strategy helps them evade immune responses and cause disease.
Area of Science:
- Cellular Biology
- Microbiology
- Immunology
Background:
- Mitochondria are dynamic organelles crucial for energy production, calcium metabolism, and apoptosis.
- Mitochondria also play a key role in innate immune responses.
- Mitochondrial dynamics, including division, fusion, and motility, maintain organelle structure and function.
Purpose of the Study:
- To investigate how microbes subvert mitochondrial function during infection.
- To understand the role of mitochondrial dynamics in pathogen-host interactions.
- To elucidate how pathogens exploit mitochondrial alterations to promote disease.
Main Methods:
- Review of existing literature on microbe-mitochondria interactions.
- Analysis of how pathogen infection impacts mitochondrial bioenergetics and dynamics.
- Examination of the benefits pathogens gain by manipulating mitochondrial shaping and function.
Main Results:
- Pathogens actively manipulate mitochondrial bioenergetics and dynamics to their advantage.
- Altered mitochondrial structure and function are observed during microbe infections.
- Microbial manipulation of mitochondria aids in evading host defenses and disease progression.
Conclusions:
- Mitochondria are critical targets for microbial manipulation.
- Pathogens exploit mitochondrial dynamics to escape host control and establish infection.
- Understanding these interactions is key to developing new therapeutic strategies against infectious diseases.
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