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Related Experiment Videos

In utero stem cell transplantation

G Monni1, R M Ibba, M A Zoppi

  • 1Department of Obstetrics and Gynecology, Prenatal and Preimplantation Diagnosis and Fetal Therapy, Ospedale Regionale per le Microcitemie, Via Jenner, Cagliari, 09121, Italy.

Croatian Medical Journal
|May 12, 1998
PubMed
Summary
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In utero transplantation of hematopoietic stem cells was explored for treating beta-thalassemia major. This study found the procedure unsuccessful for this genetic blood disorder.

Area of Science:

  • Hematology
  • Genetics
  • Prenatal Medicine

Background:

  • Beta-thalassemia major is a severe inherited blood disorder requiring lifelong treatment.
  • In utero transplantation of hematopoietic stem cells offers a potential curative approach.
  • This study investigated the feasibility and efficacy of this approach for beta-thalassemia major.

Observation:

  • A 10-week fetus diagnosed with beta-thalassemia major received intraperitoneal injection of paternal CD34+ hematopoietic progenitor cells.
  • The procedure was performed under ultrasound guidance after ethical approval and genetic counseling.
  • Post-delivery, the infant showed no signs of graft-versus-host disease.

Findings:

  • Cord blood analysis revealed the absence of adult hemoglobin A (HbA), characteristic of beta-thalassemia.

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  • Analysis of hemoglobin chain synthesis did not show clear evidence of beta-chain production.
  • The in utero transplantation was not successful in correcting beta-thalassemia major.

    • Implications:

    • Hematopoietic stem cell transplantation in utero may not be effective for beta-thalassemia major.
    • Further research and caution are advised for applications beyond immunodeficiency disorders.
    • This highlights the complexities of prenatal cellular therapies for genetic diseases.