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An Ex vivo Culture System to Study Thyroid Development
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Vibratory stimulation enhances thyroid epithelial cell function.

A P Wagner1, S Chinnathambi1, I R Titze2,3

  • 1Department of Biomedical Engineering, University of Iowa, IA, USA.

Biochemistry and Biophysics Reports
|September 29, 2017
PubMed
Summary
This summary is machine-generated.

Mechanical vibrations from vocalization can enhance thyroid cell function. Studies show physiological vibrations increase metabolic activity and gene expression, suggesting a role in maintaining thyroid health.

Keywords:
Endocrine systemFRTL-5Low amplitude mechanical signalsMechanobiologyMechanotransduction

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Area of Science:

  • Endocrinology
  • Cell Biology
  • Biophysics

Background:

  • The thyroid gland is susceptible to mechanical vibrations.
  • Vocalization produces mechanical vibrations that may influence thyroid hormone production.

Purpose of the Study:

  • To investigate if mechanical vibrations from vocalization enhance thyroid epithelial cell function.
  • To compare the effects of mechanical stimulation, chemical stimulation (TSH), and combined stimulation on thyroid cells.

Main Methods:

  • FRTL-5 rat thyroid cells were used.
  • Cells were stimulated with thyroid stimulating hormone (TSH), physiological vibrations, or both in a torsional rheometer-bioreactor.
  • Metabolic activity, ROS production, and gene expression were measured.

Main Results:

  • Mechanical stimulation significantly increased metabolic activity and ROS production (p<0.05).
  • Gene expression of thyroglobulin and sodium-iodide symporter increased with mechanical stimulation.
  • Combined mechanical and TSH stimulation yielded a greater response than either alone.

Conclusions:

  • Mechanical vibrations, such as those from vocalization, can stimulate thyroid epithelial cells.
  • Vibrational cues may play a role in maintaining thyroid function.
  • This suggests a potential non-chemical pathway for modulating thyroid activity.