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Tissue-engineered sling with adipose-derived stem cells under static mechanical strain.

Ying Wang1, Wei Wang1, Xilong Wang1

  • 1Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China.

Experimental and Therapeutic Medicine
|August 17, 2017
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Summary

Researchers engineered new sling tissue using adipose-derived stem cells (ADSCs) to treat stress urinary incontinence (SUI). This novel approach shows promise for improving SUI treatments by overcoming limitations of current synthetic slings.

Keywords:
adipose-derived stem cellspolyglycolic acidslingstress urinary incontinencetissue engineering

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Area of Science:

  • Biomaterials Engineering
  • Regenerative Medicine
  • Urology

Background:

  • Suburethral slings are a key treatment for stress urinary incontinence (SUI).
  • Current synthetic slings face limitations like tissue rejection and infection.
  • Adipose-derived stem cells (ADSCs) offer potential for tissue engineering applications.

Purpose of the Study:

  • To investigate the feasibility of engineering neo-sling tissue using ADSCs.
  • To evaluate the biomechanical properties and structural maturation of engineered tissue.
  • To assess the potential of ADSCs as a cell source for SUI treatment.

Main Methods:

  • ADSCs were isolated from Sprague-Dawley rats and characterized.
  • ADSCs were seeded onto polyglycolic acid (PGA) scaffolds shaped as slings.
  • Engineered tissues were cultured in vitro for 12 weeks under static strain.

Main Results:

  • Neo-sling tissue was successfully generated using ADSCs within 12 weeks.
  • Engineered tissue showed significant improvements in biomechanical properties (maximal load, Young's modulus) with culture time.
  • Tissue structure and collagen content matured, and differentiated ADSCs maintained a myoblast phenotype.

Conclusions:

  • ADSCs are a viable cell source for engineering functional neo-sling tissue.
  • Engineered ADSC-based slings demonstrate potential to overcome limitations of current SUI treatments.
  • This approach could lead to improved therapeutic options for patients with SUI.