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Establishment of Genome-edited Human Pluripotent Stem Cell Lines: From Targeting to Isolation
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A homozygous p53 R282W mutant human embryonic stem cell line generated using TALEN-mediated precise gene editing

Ruoji Zhou1, An Xu2, Donghui Wang3

  • 1Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA; The University of Texas MD Anderson Cancer Center, UTHealth Graduate School of Biomedical Sciences, Houston, TX 77030, USA.

Stem Cell Research
|February 8, 2018
PubMed

Insights

Researchers created a human embryonic stem cell line with a TP53 R282W mutation. This engineered cell line, crucial for cancer research, maintains pluripotency and can form teratomas with tissues from all three germ layers.

Area of Science:

  • Cancer Biology
  • Stem Cell Biology
  • Genetics

Background:

  • The TP53 gene is frequently mutated in human cancers.
  • TP53 mutations can lead to novel oncogenic functions.
  • Understanding these mutations is key to cancer progression research.

Purpose of the Study:

  • To generate a human embryonic stem cell line with a specific TP53 mutation (R282W).
  • To create a model for studying the functional impact of TP53 mutations in cancer.

Main Methods:

  • Utilized TALEN-mediated genome editing to introduce the TP53 R282W mutation into H1 human embryonic stem cells.
  • Assessed the karyotype and pluripotency of the engineered cell line.
  • Performed in vivo teratoma formation assays.

Main Results:

  • Successfully generated a H1 human embryonic stem cell line with a homozygous TP53 R282W mutation.
  • The cell line exhibited a normal karyotype and maintained pluripotency.
  • In vivo teratoma formation confirmed the presence of tissues from all three germ layers.

Conclusions:

  • The TP53 R282W mutant human embryonic stem cell line is a viable model for cancer research.
  • This model can be used to investigate the oncogenic roles of TP53 mutations.
  • Further studies can explore therapeutic strategies targeting TP53-mutated cancers.

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