Generation of PKD1 mono-allelic and bi-allelic knockout iPS cell lines using CRISPR-Cas9 system

Elena Romano1, Piera Trionfini1, Osele Ciampi1

  • 1Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, 24126 Bergamo, Italy.

Stem Cell Research
|June 28, 2020
PubMed

Insights

Researchers created stem cells with mutations in the PKD1 gene, the cause of autosomal dominant polycystic kidney disease (ADPKD). These engineered cells offer a new model for studying ADPKD progression and potential treatments.

Area of Science:

  • Genetics and Genomics
  • Stem Cell Biology
  • Nephrology

Background:

  • Autosomal dominant polycystic kidney disease (ADPKD) is a common inherited kidney disorder.
  • Mutations in the PKD1 gene are a primary cause of ADPKD, leading to kidney cyst formation.
  • Understanding ADPKD pathogenesis requires robust cellular models.

Purpose of the Study:

  • To generate isogenic induced pluripotent stem cell (iPSC) lines with specific PKD1 gene mutations.
  • To establish a cellular model for studying autosomal dominant polycystic kidney disease (ADPKD).
  • To validate the pluripotency and differentiation potential of the generated iPSC lines.

Main Methods:

  • CRISPR-Cas9 gene editing technology was employed.
  • Two isogenic iPSC lines were generated: one heterozygous (PKD1+/-) and one compound heterozygous (PKD1-/-) for PKD1 mutations.
  • Characterization included assessment of stem cell morphology, karyotype, pluripotency markers, and differentiation capacity.

Main Results:

  • Isogenic iPSC lines with targeted PKD1 mutations were successfully generated.
  • The PKD1+/- and PKD1-/- iPSCs exhibited normal stem cell morphology.
  • These engineered iPSCs maintained a normal karyotype and demonstrated pluripotency and differentiation potential across the three germ layers.

Conclusions:

  • The study successfully created isogenic iPSC lines carrying PKD1 mutations relevant to ADPKD.
  • These novel iPSC lines serve as a valuable tool for investigating ADPKD mechanisms.
  • The findings support the utility of these engineered stem cells for future ADPKD research and therapeutic development.

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