CRISPR technology: A versatile tool to model, screen, and reverse drug resistance in cancer

Shiva Shirani-Bidabadi1, Aliye Tabatabaee2, Nazita Tavazohi3

  • 1Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran.

Abstract

Insights

Clustered regularly interspaced short palindrome repeats (CRISPR) gene editing advances cancer drug resistance research by identifying resistance genes and creating models. CRISPR shows promise in overcoming chemotherapy resistance but requires further study to address limitations.

Area of Science:

  • Oncology
  • Genetics
  • Biotechnology

Background:

  • Drug resistance significantly challenges cancer chemotherapy efficacy.
  • Understanding resistance mechanisms and developing new therapies are critical.
  • CRISPR gene editing offers a powerful approach to study and target cancer drug resistance.

Approach:

  • This review evaluates original research utilizing CRISPR technology for cancer drug resistance.
  • Focus areas include screening resistance-related genes, generating resistant cell/animal models, and genetic manipulation to overcome resistance.
  • Key findings on targeted genes, study models, and drug classes are reported.

Key Points:

  • CRISPR facilitates the identification of genes contributing to drug resistance.
  • CRISPR enables the creation of sophisticated models for studying resistance mechanisms.
  • CRISPR-mediated genetic manipulation can potentially reverse or sensitize cells to chemotherapy.

Conclusions:

  • CRISPR technology is instrumental in dissecting complex cancer drug resistance mechanisms.
  • While effective, CRISPR/Cas9 faces challenges including off-target effects, immunotoxicity, and delivery efficiency.
  • Further research is essential to optimize CRISPR applications for clinical cancer therapy.

Related Concept Videos

CRISPR01:59

CRISPR

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...
52.6K
CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

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...
99
Homologous Recombination02:31

Homologous Recombination

The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
50.8K
CRISPR and crRNAs02:53

CRISPR and crRNAs

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.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
17.2K
The Antiviral System of Bacteria and Archaea: CRISPR01:23

The Antiviral System of Bacteria and Archaea: CRISPR

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...
76
Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.4K