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Related Experiment Videos

Cryopreservation of human brain tissue.

R J Robbins1, I Torres-Aleman, C Lebranth

  • 1Department of Medicine, Yale University School of Medicine, New Haven, Connecticut 06510.

Experimental Neurology
|March 11, 1990
PubMed
Summary

Human fetal brain tissue obtained via suction abortion is viable after cryopreservation. This method preserves neural tissue for potential transplantation, showing normal differentiation post-thaw.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Cryobiology

Background:

  • Neural transplantation holds promise for treating neurodegenerative diseases.
  • Accessing viable human neural tissue for research and therapeutic applications is challenging.
  • Cryopreservation techniques are crucial for long-term storage and transport of biological tissues.

Purpose of the Study:

  • To assess the feasibility of obtaining viable human neural tissue from products of conception after suction abortion.
  • To evaluate the potential of cryopreserved ventral mesencephalon tissue for transplantation.
  • To determine if cryopreservation impacts the viability and differentiation of fetal brain tissue.

Main Methods:

  • Examination of tissues from 120 products of conception (9-12 weeks gestation).

Related Experiment Videos

  • Identification and isolation of ventral mesencephalon tissue.
  • Cryopreservation of tissue at -196°C in cryoprotective solutions.
  • Screening for infectious agents (viral, fungal, bacterial, mycoplasma).
  • In vitro culture of thawed tissue to assess viability and neuronal morphology.

    • Main Results:

    • Ventral mesencephalon identified in 32 of 120 cases.
    • Three specimens showed contamination with vaginal bacteria; other infectious agent testing was negative.
    • Thawed brain fragments demonstrated high viability and retained neuronal morphology.
    • Tyrosine hydroxylase immunoreactivity and dopamine production were observed in cultured cells, indicating successful differentiation.

    Conclusions:

    • Human fetal brain tissue, specifically the ventral mesencephalon, can be successfully cryopreserved after suction abortion.
    • Cryopreservation maintains tissue viability and allows for normal phenotypic differentiation upon thawing.
    • This study demonstrates a viable method for obtaining and preserving neural tissue for potential future therapeutic applications.