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Related Experiment Video

Updated: Apr 5, 2026

Manipulating the Murine Lacrimal Gland
05:56

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Stem Cell-Soluble Signals Enhance Multilumen Formation in SMG Cell Clusters.

C L M Maruyama1, N J Leigh1, J W Nelson1

  • 1School of Dentistry, University of Utah, Salt Lake City, UT, USA.

Journal of Dental Research
|August 20, 2015
PubMed
Summary
This summary is machine-generated.

Human hair follicle stem cells can improve salivary gland cell growth in lab cultures. Their secreted factors promote better cell organization and structure formation, offering hope for new hyposalivation treatments.

Keywords:
acinar cellsaquaporin 5cyclic AMPlamininmesenchymal stromal cellsalivary glands

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Area of Science:

  • Biomedical Engineering
  • Stem Cell Biology
  • Oral Health Research

Background:

  • Saliva is crucial for oral health; salivary hypofunction causes significant issues like decay and infections.
  • Current hyposalivation treatments are limited, necessitating advancements in restorative therapies.
  • Previous work showed salivary cells form structures on laminin-rich Matrigel.

Purpose of the Study:

  • To enhance salivary gland cell differentiation in primary cultures.
  • To investigate the combined effect of laminin-III (L1) and human hair follicle-derived mesenchymal stem cells (hHF-MSCs) as a feeder layer.
  • To explore the role of soluble factors from hHF-MSCs in salivary cell organization.

Main Methods:

  • Primary mouse submandibular (mSMG) gland cells were cultured.
  • Cells were grown on growth factor-reduced Matrigel, with and without hHF-MSCs.
  • The impact of direct cell contact versus conditioned medium from hHF-MSCs was assessed.

Main Results:

  • Mouse submandibular gland cells formed acinar and ductal structures without direct contact with hHF-MSCs.
  • hHF-MSC conditioned medium significantly improved cell organization and multilumen formation.
  • Soluble factors secreted by hHF-MSCs appear crucial for promoting these structural features.

Conclusions:

  • Human hair follicle-derived mesenchymal stem cells can support salivary gland cell differentiation.
  • Soluble factors from hHF-MSCs are key to enhancing salivary cell organization and structure formation.
  • This approach holds potential for developing novel regenerative treatments for hyposalivation.