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Isolation of Salivary Epithelial Cells from Human Salivary Glands for In Vitro Growth as Salispheres or Monolayers
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Morphofunctional studies on human labial salivary glands

A Riva1, R Puxeddu, F Loy

  • 1Department of Cytomorphology, University of Cagliari, Cittadella Universitaria, Cagliari, Monserrato, Italy. riva@unica.it

European Journal of Morphology
|October 21, 2003
PubMed

Insights

Human salivary gland mucous cells release droplets only with muscarinic stimulation, not adrenergic. Ultrastructural analysis revealed similar secretory events across different human salivary gland types.

Area of Science:

  • Cell Biology
  • Histology
  • Salivary Gland Biology

Background:

  • Human salivary glands exhibit complex secretory functions.
  • Understanding the regulation of mucous secretion is crucial for salivary gland research.

Purpose of the Study:

  • To investigate the ultrastructural mechanisms of mucous secretion in human labial and submandibular glands.
  • To compare the effects of muscarinic and adrenergic stimulation on salivary gland mucous cells.

Main Methods:

  • Light microscopy (LM)
  • Transmission electron microscopy (TEM)
  • High-resolution scanning electron microscopy (HRSEM)

Main Results:

  • Mucous droplets were released exclusively via muscarinic stimulation in both labial and submandibular glands.
  • Ultrastructural events during secretion were consistent with previous studies on rat sublingual glands.
  • Seromucous cells in labial glands responded similarly to both carbachol (muscarinic) and isoproterenol (adrenergic) stimulation.

Conclusions:

  • Muscarinic stimulation is the primary pathway for mucous droplet release in human salivary glands.
  • Ultrastructural findings provide insights into the conserved mechanisms of salivary secretion.
  • Labial gland seromucous cells exhibit a dual response to cholinergic and adrenergic stimuli.

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