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Generation of a new human iPSC cell line (UOMi010-A) from a patient with hypophosphatasia

Abhay Srivastava1, Dylan Walker1, Jason Uzonna1

  • 1Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Regenerative Medicine Program, Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Canada.

Stem Cell Research
|July 13, 2025
PubMed

Insights

Hypophosphatasia (HPP) is a rare inherited disorder caused by ALPL gene variants, leading to impaired bone and teeth mineralization. Researchers created a patient-specific iPSC line to study HPP mechanisms and test new drug therapies.

Area of Science:

  • Genetics
  • Metabolic Disorders
  • Stem Cell Biology

Background:

  • Hypophosphatasia (HPP) is a rare inherited metabolic disorder.
  • It results from loss-of-function variants in the alkaline phosphatase (ALPL) gene.
  • HPP impairs bone and teeth mineralization, presenting across various clinical stages.

Purpose of the Study:

  • To investigate the molecular mechanisms underlying Hypophosphatasia.
  • To establish a patient-specific induced pluripotent stem cell (iPSC) line for HPP research.
  • To screen for potential novel therapeutic drug candidates for HPP.

Main Methods:

  • Generated a patient-specific iPSC cell line (UOMi010-A).
  • Derived iPSCs from peripheral blood mononuclear cells (PBMCs) of a 62-year-old female patient.
  • The patient harbors a heterozygous pathogenic variant (c.551G>A; p.Arg184Gln) in the ALPL gene.

Main Results:

  • Successfully generated a unique patient-derived iPSC line (UOMi010-A).
  • This cell line carries the specific ALPL gene variant identified in the patient.
  • The iPSC line provides a model for studying HPP in vitro.

Conclusions:

  • The generated iPSC line serves as a valuable tool for HPP research.
  • This model facilitates the study of molecular mechanisms and the development of targeted therapies.
  • Further research using this cell line can advance understanding and treatment of Hypophosphatasia.

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