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Related Concept Videos

CRISPR01:59

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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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CRISPR/Cas9 Genome Editing01:28

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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
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Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
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Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
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The Antiviral System of Bacteria and Archaea: CRISPR01:23

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CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats is a adaptive immune system found in bacteria and archaea that protects against viral infections. This system enables prokaryotic cells to identify, remember, and neutralize foreign genetic elements, primarily bacteriophages, by storing fragments of the invader’s DNA as a genetic memory.The CRISPR immune response begins during an initial infection. Cas (CRISPR-associated) proteins play a central role in this...
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Using CRISPR/Cas9 to Knock Out GM-CSF in CAR-T Cells
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Novel Epigenetic Techniques Provided by the CRISPR/Cas9 System.

Nina Xie1,2, Yafang Zhou1,2, Qiying Sun1,2

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CRISPR/Cas9 technology revolutionizes epigenetics, enabling precise control over inheritable gene expression without altering DNA sequences. This review explores novel CRISPR-based epigenome editing and manipulation techniques for biological research.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biotechnology

Background:

  • Epigenetics involves inheritable changes in gene expression without DNA sequence alteration.
  • Understanding epigenetic mechanisms is crucial for comprehending cell identity and biological processes.
  • CRISPR/Cas9 technology offers innovative tools for epigenetic research.

Purpose of the Study:

  • To review novel epigenetic techniques based on the CRISPR/Cas9 system.
  • To highlight the applications of CRISPR/Cas9 in epigenome editing and manipulation.
  • To discuss the potential of these technologies in advancing biological understanding.

Main Methods:

  • CRISPR/Cas9-mediated epigenome editing.
  • Temporal and spatial control of epigenetic effectors using CRISPR.
  • CRISPR-based manipulation of noncoding RNAs.
  • In vivo chromatin imaging with CRISPR tools.
  • CRISPR-facilitated epigenetic element screening.

Main Results:

  • CRISPR/Cas9 enables precise modification of epigenetic marks.
  • New methods allow for dynamic control of epigenetic states.
  • CRISPR tools facilitate the study of noncoding RNA functions.
  • In vivo imaging provides insights into chromatin dynamics.
  • High-throughput screening identifies key epigenetic regulators.

Conclusions:

  • CRISPR/Cas9 technology is transforming the field of epigenetics.
  • These novel techniques offer unprecedented control and insight into epigenetic regulation.
  • The reviewed methods hold significant promise for future biological discoveries and therapeutic strategies.