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Related Experiment Video

Updated: Nov 25, 2025

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Cell Sheets Restore Secretory Function in Wounded Mouse Submandibular Glands.

Harim T Dos Santos1,2, Kyungsook Kim3, Teruo Okano3,4

  • 1Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA.

Cells
|December 15, 2020
PubMed
Summary
This summary is machine-generated.

Thermoresponsive cell sheets promote long-term salivary gland regeneration in mice. This innovative therapy enhances tissue integrity, cell function, and saliva production for extended periods, offering a promising treatment for hyposalivation.

Keywords:
cell sheetextracellular matrixhyposalivationregenerationwound healing

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Area of Science:

  • Regenerative Medicine
  • Tissue Engineering
  • Biomaterials Science

Background:

  • Thermoresponsive cell culture plates enable the release of intact cell sheets.
  • Previous studies showed effectiveness of cell sheets in early-stage submandibular gland (SMG) regeneration.
  • Long-term efficacy and stability of cell sheets for SMG repair required further investigation.

Purpose of the Study:

  • To evaluate the long-term effects of cell sheet transplantation on wounded mouse SMG.
  • To assess the duration of therapeutic benefits and tissue integration.
  • To investigate the impact on salivary epithelial integrity, cell function, and saliva production over time.

Main Methods:

  • Wounded mouse SMG were treated with cell sheets engineered using thermoresponsive culture plates.
  • Tissue integrity, cell polarization, differentiation, and ion transporter expression were analyzed at 8 and 20 days post-transplantation.
  • Saliva quantity and quality were measured to assess functional recovery.

Main Results:

  • Cell sheets promoted tissue organization and enhanced salivary epithelial integrity from Day 8 through Day 20.
  • Significant time-dependent improvements in cell polarization, differentiation, and ion transporter expression were observed.
  • Saliva quantity was restored to pre-wounding levels, and saliva quality significantly improved by Day 20.

Conclusions:

  • Cell sheets derived from thermoresponsive plates are effective for long-term salivary gland regeneration.
  • The study provides evidence for the sustained stability and therapeutic potential of cell sheets in treating hyposalivation.
  • This approach represents a promising new therapeutic strategy for salivary gland repair and functional restoration.