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Related Concept Videos

In-vitro Mutagenesis01:16

In-vitro Mutagenesis

To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.

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Related Experiment Video

Updated: Jun 10, 2026

Highly Efficient Gene Disruption of Murine and Human Hematopoietic Progenitor Cells by CRISPR/Cas9
08:27

Highly Efficient Gene Disruption of Murine and Human Hematopoietic Progenitor Cells by CRISPR/Cas9

Published on: April 10, 2018

An efficient method for generating human somatic cell gene knockouts.

Manu Kohli1, Carlo Rago

  • 1Sidney Kimmel Comprehensive Cancer Center and The Cellular and Molecular Medicine Program, The Johns Hopkins University Medical Institutions, Baltimore, MD 21231, USA.

Discovery Medicine
|August 14, 2010
PubMed
Summary
This summary is machine-generated.

Generating human somatic cell gene knockouts is crucial for understanding gene function and developing new disease treatments. This method offers a definitive way to study gene roles, surpassing less specific knockdown techniques.

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Related Experiment Videos

Last Updated: Jun 10, 2026

Highly Efficient Gene Disruption of Murine and Human Hematopoietic Progenitor Cells by CRISPR/Cas9
08:27

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Published on: April 10, 2018

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Selection-dependent and Independent Generation of CRISPR/Cas9-mediated Gene Knockouts in Mammalian Cells

Published on: June 16, 2017

CRISPR-Cas9 Mediated Gene Deletion in Human Pluripotent Stem Cells Cultured Under Feeder-Free Conditions
04:21

CRISPR-Cas9 Mediated Gene Deletion in Human Pluripotent Stem Cells Cultured Under Feeder-Free Conditions

Published on: November 1, 2024

Area of Science:

  • Genomics and Human Genetics
  • Functional Genomics
  • Molecular Biology

Background:

  • The Human Genome Project has mapped numerous genes, presenting opportunities for disease research.
  • Understanding gene function is key to developing novel therapeutics.
  • Model organism studies offer insights but have limitations in inferring human gene function due to non-identical homologues.

Purpose of the Study:

  • To highlight the importance of gene knockout approaches for determining gene function.
  • To emphasize the need for human somatic cell gene knockouts for accurate human gene function studies.
  • To compare knockout strategies with less precise knockdown methods like RNA interference.

Main Methods:

  • Gene knockout technologies in various model organisms (bacteria, yeast, chickens, rodents).
  • Generation of human somatic cell gene knockouts.
  • Comparison with knockdown approaches such as antisense and short interfering RNA (siRNA).

Main Results:

  • Gene knockouts provide definitive gene function data through comparisons with wild-type controls.
  • Human somatic cell gene knockouts are the most effective for studying human gene function.
  • Knockdown approaches (e.g., siRNA) reduce gene expression but can cause non-specific effects, complicating analysis.

Conclusions:

  • Human somatic cell gene knockouts are essential for advancing functional genomics and disease research.
  • Overcoming historical inefficiencies in generating human somatic cell knockouts is critical.
  • Definitive gene function analysis through knockouts is superior to less specific knockdown methods for therapeutic development.