Microbiology Profile

Bacteriology:

Through various examples, students will gain a better understanding of the concept of pathogenicity in relation to bacterial virulence. The methods and mechanisms used to manipulate the body’s cells at the mucosal level in order to penetrate the internal environment—that is, invasive potential—will be discussed, as well as the perception of environmental signals and the integration of these signals to coordinate the response of prokaryotes so that they exhibit collective behavior. A description of several examples of toxins and modulins associated with colonization and/or invasion will provide a better understanding of the differences in strategies among prokaryotic pathogens. Finally, we will address the concept of the microbiota and its influence on the body’s functioning, as well as its role in the development of certain diseases.

Immunology:

The Immunology section provides an overview of how the immune system functions during infection. From the initiation and progression of the inflammatory response upon the recognition of non-self signals by the innate immune system (PRR-PAMP) to the mechanisms of cell activation and the resulting cellular responses, we can appreciate the diversity of possibilities offered by the various components of the immune system. Furthermore, the sequence of events leading to the direction of the immune response and the acquisition of lasting protection during the adaptive phase will provide a better understanding of vaccine strategy. Finally, intestinal mucosal immunity will be discussed in the context of the relationship between the host and the microbiota.

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The molecular biology practical training course aims to enable students to work independently on a molecular biology protocol and to introduce them to hypothesis-driven research. Students will have six days to address a biological problem that will be presented to them. This will allow them to apply, under laboratory conditions, some of the techniques covered in their theoretical coursework, thereby gaining a better understanding of them.

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The course will cover the fundamentals and principles of microbial ecology (microbial biodiversity; cultivable and non-cultivable microorganisms;   major microbial groups, key microbial functions and biogeochemical cycles, microbial metabolism in the environment and environmental applications, and the fundamentals of ecology as they apply to microorganisms (microbial interactions, free-living organisms, competition, collaboration, symbiosis, parasitism, and their applications). The following topics will be specifically addressed as examples:

- Viruses: the concepts of emergence and re-emergence

-Vibrios: virulence factors, adaptation to the host, and horizontal transfer

-streptococci, comparative genomics, genomic reduction, specialization

 Applications of microbial ecology to biotechnology will include: detection, production of inocula, bioproductions, bioremediation, and water treatment, using concrete examples (development of multipathogen detection tools that account for mutation; production of a flavor enhancer by a soil corynebacterium; applications of microbial interaction studies to the selection of cheese flavors; a quality index for vineyard soil, etc.)

Practical Course: Water Analysis—Principles, Standards, and Applications: 6 hours total

Tutorial/independent work based on the results of the lab: design of a water treatment model for a real-world scenario (cadastral data, topographic survey, total fecal coliform and streptococcal load from the lab, student presentations on the various types of (micro) wastewater treatment plants, etc.) The goal is to propose a conceptual solution tailored to the specific site conditions.

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As part of this course unit, students will learn the experimental principles involved in working with nucleic acids. The lectures will focus on two main areas:

1. Development of molecular tools (cloning, nucleic acid analysis, vectorology) ii. Their applications (recombinant protein expression, genomic banking, transgenesis, the CRISPR/Cas9 system, etc.) and reflection on ethical issues in biology.

The tutorials will consist of:

- Analysis of articles presenting problems to be solved using the knowledge gained in the course. The chosen topics will, as much as possible, relate to parallel course units in the third year of the bachelor’s program. Students will present these articles in the form of oral presentations, in groups of 3 to 4 students, to the entire class.

- Sessions dedicated to using basic bioinformatics tools in the computer lab.

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The EU aims to advance knowledge in fundamental and applied virology, with an emphasis on an integrative approach to the discipline. It will present the specific characteristics of host-virus interactions and the pathophysiology of viral infections in different types of hosts (vertebrates, insects, and plants). It will address aspects of viral ecology, virus emergence, and associated risks to human and animal health. Finally, the course will cover research methods, virological detection and diagnostic tools, and the applications of viruses in biotechnology.

The course will consist of lectures, tutorials (analysis of current scientific articles and oral presentations), and practical exercises that illustrate the material covered in the lectures and tutorials (virus amplification and purification, and quantification using standard techniques).

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