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Related Experiment Videos

A simple strategy for culturing morphologically-conserved rat hypothalamic tanycytes.

Pablo Nicolás De Francesco1, Daniel Castrogiovanni2, Maia Uriarte1

  • 1Laboratory of Neurophysiology of the Multidisciplinary Institute of Cell Biology [IMBICE, dependent of the Argentine Research Council (CONICET) and Scientific Research Commission, Province of Buenos Aires (CIC-PBA)], Calle 526 entre 10 y 11, PO Box 403, La Plata, 1900, Buenos Aires, Argentina.

Cell and Tissue Research
|April 18, 2017
PubMed
Summary

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Researchers developed a new method to culture hypothalamic tanycytes, specialized brain cells crucial for regulating hormone release. This improved technique yields identifiable tanycyte-like cells that maintain their natural morphology and function in vitro.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Endocrinology

Background:

  • Hypothalamic tanycytes are specialized ependymal cells lining the third ventricle.
  • They are critical for forming a barrier and regulating hypothalamic factors reaching the anterior pituitary.
  • In vitro culture of tanycytes has historically been challenging.

Purpose of the Study:

  • To develop an improved method for generating primary cultures of rat hypothalamic tanycytes.
  • To characterize the cultured cells for morphological, molecular, electrical, and functional properties.

Main Methods:

  • Primary cultures derived from the median eminence region of 10-day-old rats.
  • Cultured in a chemically defined medium (DMEM:F12, serum albumin, insulin, transferrin, gentamycin).
Keywords:
Cell cultureEpendymal cellsGliaHypothalamusMedian eminence

Related Experiment Videos

  • Characterization using phase contrast, scanning electron microscopy, immunocytochemistry, electrophysiology, and endocytosis assays.

    • Main Results:

    • Approximately 30% of cultured cells exhibited tanycyte morphology after 7 days in vitro.
    • Tanycyte-like cells showed strong immunoreactivity for vimentin and DARPP-32, and weak for GFAP.
    • Cells maintained a negative resting membrane potential, lacked spiking, and demonstrated robust endocytosis.

    Conclusions:

    • The developed method effectively generates primary cultures of tanycyte-like cells.
    • These cells resemble in vivo tanycytes in morphology, molecular markers, and key functions.
    • This is the first protocol enabling the culturing and individual identification of tanycyte-like cells that retain their natural morphology.