Learning outcomes

To familiarize students with experimental approaches used in research laboratories in the fields of cell and molecular biology, imaging, and transgenesis. Particular emphasis will be placed on highlighting the advantages and limitations of the techniques presented, in order to stimulate the student’s critical thinking. The student should therefore be able, when faced with a given biological question, to design an experimental strategy to address it.

The student should be able to propose and critically evaluate technical and experimental approaches to investigate a given biological question.

Goals

The main objective of this course is to expose students to the wide range of modern techniques used in molecular and cellular biology laboratories (genetics, biochemistry, omics approaches, advanced bioimaging). More specifically, students will be encouraged to adopt a critical perspective on the advantages and limitations of these various techniques.

Content

See table of content

Table of contents

Prof. Henri-François Renard

1) Fluorescence: theoretical overview

2) Epifluorescence microscopy (widefield)

3) Confocal microscopy:

  • Confocal laser scanning microscopy (single-photon / two- or multi-photon)
  • Resolution: limitations due to light diffraction & the concept of the PSF (Point Spread Function)
  • Spinning disk confocal microscopy

4) TIRF microscopy (Total Internal Reflection Fluorescence), also known as evanescent field microscopy

5) How to increase resolution? → So-called “super-resolution” techniques:

  • SIM (Structured Illumination Microscopy)
  • ISM (Image Scanning Microscopy): Airyscan technology
  • STED microscopy (Stimulated Emission Depletion)
  • SMLM (Single Molecule Localization Microscopy)
  • STORM (Stochastic Optical Reconstruction Microscopy)
  • PALM (Photo-Activated Localization Microscopy)
  • MINFLUX (single-molecule resolution!)

6) How to increase acquisition speed without (too much) compromising resolution? (important for live-cell and 3D imaging):

  • 3D Deconvolution
  • Spinning disk confocal microscopy
  • Lattice-SIM
  • Light-Sheet Microscopy or SPIM (Selective Plane Illumination Microscopy)
  • Lattice Light-Sheet Microscopy (LLSM)


Prof. Thierry Arnould

  1. Flow cytometry - FACS: principle and applications
  2. Extracellular vesicles: analysis techniques or another recent emerging technology in biology
  3. Gene expression knockdown: siRNA and miRNA


Prof. Olivier De Backer

  1. Introduction: GMOs, the mouse as a model organism
  2. Transgenesis: additive vs targeted
  3. Targeted transgenesis methods in mice
  4. Use of site-specific recombinases (Cre, Flp) in transgenesis
  5. Cell lineage tracing
  6. Inducible expression systems


 

Teaching methods

The programme has been established in a consensual way between the 3 Professors in order to cover major and many experimental techniques, equipments and strategies used in modern biology. The course has been planned to give tools and keys to students in order to allow them to read and to understand scientific papers as well as to give them basic knowledge to plan a research project. Lectures supported by various pedagogical tools are accompanied by extra readings of scientific papers.

These papers are analyzed in a critical manner by the teachers.

Assessment method

The students have to take and pass an oral exam with every single Professor. Students have time (± 60 min) to prepare a question/professor in relation with their respective topics. 4 to 5 students start at the beginning of the day and then enter every 30 min. Professor will particularly put the accent on important concepts and will specially pay attention to the way of thinking, comprehension and reflection more than memory of details.

In the case of strong failure (note of 7 or lower) in one or several parts of this course, a note of 6/20 will appear on the deliberation sheet. Therefore the student will need to present in the second session the part(s) in which a failure was reported, keep the notes for the other parts of the courses acquired at the first session.

Sources, references and any support material

Slides and research articles derived from the literature (Webcampus).

Language of instruction

French