CRISPR-Cas9 is a genome editing technology that exploits a natural bacterial defense system against phages, which are constantly invading bacteria. Bacteria defend themselves against the invaders by cutting out foreign DNA through CRISPR-Cas9, often termed ‘gene scissors’. Charpentier and colleagues managed to reprogram CRISPR-Cas9, so that it can be used as a versatile tool for editing the genome of virtually any cell. Beyond accelerating basic research, CRISPR-Cas9 is now explored as a therapy for correcting a number of human genetic diseases.
In 2011, the Charpentier laboratory identified an essential component of the CRISPR-Cas9 system, the so-called tracrRNA, which helps to recognize the piece of DNA that must be cut. This system was then developed into a precise gene-editing tool by replacing the bacterial tracrRNA, with custom-made RNAs that direct the gene scissors to any chosen location in the genome such as human cells. The details of the DNA targeting mechanism and the guidelines how to use it for gene editing were published in Science in 2012 together with Jennifer Doudna’s laboratory at the University of California, Berkeley.
Key aspects of CRISPR-Cas9 were elucidated by Emmanuelle Charpentier, first at the Max Perutz Labs and later by her research group at the Laboratory for Molecular Infection Medicine Sweden at Umeå University in Sweden. Currently Prof. Charpentier is Scientific and Managing Director of the Max Planck Unit for the Science of Pathogens, and Honorary Professor at Humboldt University, Berlin.
Read more about CRISPR/Cas9
https://www.maxperutzlabs.ac.at/research/key-discoveries/crispr/cas9-how-gene-scissors-work
Read more about Emmanuelle Charpentier and her research:
Chromatin as a gatekeeper of chromosome replication
Mind matters. VBC mental health awareness
The multiple facets of Hop1 during meiotic prophase
Chromosomes as Mechanical Objects: from E.coli to Meiosis to Mammalian cells
Convergent evolution of CO2-fixing liquid-liquid phase separation
Viral envelope engineering for cell type specific delivery
New ways of leading: inclusive leadership and revising academic hierarchies
How an opportunistic human pathogen colonizes surfaces - From pathogen behavior to new drugs
Title to be announced
Decoding Molecular Plasticity in the Dark Proteome of the Nuclear Pore Complex
Probing the 3D genome architectural basis of neurodevelopment and aging in vivo
How to tango with four - the evolution of meiotic chromosome segregation after genome duplication
Multidimensional approach to decoding the mysteries of animal development
Connecting mitotic chromosomes to dynamic microtubules - insight from biochemical reconstitution
Membrane remodeling proteins at the junction between prokaryotes and eukaryotes
Neurodiversity in academia: strengths and challenges of neurodivergence
Gene expression dynamics during the awakening of the zygotic genome
When all is lost? Measuring historical signals
Suckers and segments of the octopus arm
Using the house mouse radiation to study the rapid evolution of genes and genetic processes
CRISPR jumps ahead: mechanistic insights into CRISPR-associated transposons
Title to be announced
Enigmatic evolutionary origin and multipotency of the neural crest cells - major drivers of vertebrate evolution
Visualising mitotic chromosomes and nuclear dynamics by correlative light and electron microscopy
Bacterial cell envelope homeostasis at the (post)transcriptional level
Polyploidy and rediploidisation in stressful times
Prdm9 control of meiotic synapsis of homologs in intersubspecific hybrids
RNA virus from museum specimens
Programmed DNA double-strand breaks during meiosis: Mechanism and evolution
Title to be announced