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Differentiated adipose-derived stem cells for bladder bioengineering.

Souzan Salemi1, Mathias Tremp1, Jan A Plock2

  • 1a 1 Laboratory for Tissue Engineering and Stem Cell Therapy, Department of Urology, University Hospital Zürich , Zürich, Switzerland.

Scandinavian Journal of Urology
|February 6, 2015
PubMed
Summary
This summary is machine-generated.

Adipose-derived stem cells (ADSCs) can be differentiated into functional smooth muscle cells (SMCs) for bladder tissue engineering. Optimal differentiation for contractile SMCs suitable for urological applications requires 3 weeks of induction.

Keywords:
adipose-derived stem celldifferentiationsmooth muscletissue engineering

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Area of Science:

  • Regenerative Medicine
  • Tissue Engineering
  • Stem Cell Biology

Background:

  • Adipose-derived stem cells (ADSCs) are a promising cell source for tissue regeneration.
  • Smooth muscle cells (SMCs) are crucial for bladder function and tissue engineering.
  • Current limitations exist in sourcing and differentiating cells for urological tissue reconstruction.

Purpose of the Study:

  • To differentiate adipose-derived stem cells (ADSCs) into functional smooth muscle cells (SMCs).
  • To evaluate ADSCs as an alternative cell source for bladder tissue engineering.
  • To determine the optimal induction period for ADSC differentiation into contractile SMCs.

Main Methods:

  • Rat ADSCs were induced to differentiate into SMCs over 1-6 weeks.
  • Gene and protein expression of contractile markers (calponin, smoothelin, MyH11) were analyzed.
  • Real-time PCR, FACS, and Western blot were used for molecular analysis.
  • Tissue contraction assays (spontaneous and carbachol-induced) assessed functional maturation.

Main Results:

  • ADSCs differentiated into SMCs exhibited a shift from proliferative to synthetic phenotype.
  • Peak expression of SMC-specific genes (calponin, smoothelin, MyH11) and acquisition of SMC morphology occurred at 3 weeks.
  • Maximal spontaneous and carbachol-induced contractions were observed after 3 weeks of induction.
  • Prolonged induction led to loss of contractile proteins and SMC morphology.

Conclusions:

  • ADSCs are a viable cell source for generating functional, contractile SMCs for tissue engineering.
  • A 3-week induction period is sufficient for differentiating ADSCs into SMCs suitable for urological tissue engineering.
  • This approach offers a potential solution for reconstructing bladder tissues requiring contractile smooth muscle components.