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Related Experiment Videos

Bladder augmentation using allogenic bladder submucosa seeded with cells

J J Yoo1, J Meng, F Oberpenning

  • 1Department of Urology, Children's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA.

Urology
|March 12, 1998
PubMed
Summary
This summary is machine-generated.

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Allogenic bladder submucosa seeded with cells significantly increased bladder capacity in dogs. This biomaterial shows promise for bladder augmentation, offering a superior alternative to cell-free options.

Area of Science:

  • Regenerative Medicine
  • Biomaterials Science
  • Urology

Background:

  • Urinary tract reconstruction often uses bowel, leading to complications.
  • Developing effective biomaterials for bladder augmentation is crucial.
  • Allogenic bladder submucosa is a non-immunogenic acellular collagen tissue.

Purpose of the Study:

  • To evaluate allogenic bladder submucosa, with or without cells, for bladder augmentation.
  • To compare the efficacy of cell-seeded versus cell-free submucosa grafts.

Main Methods:

  • Partial cystectomies were performed in 10 beagle dogs.
  • Allogenic bladder submucosa was seeded with urothelial and smooth muscle cells.
  • Augmentation cystoplasty was performed using cell-seeded or cell-free grafts.

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Main Results:

  • Cell-seeded grafts increased bladder capacity by 99%, versus 30% for cell-free grafts.
  • Urodynamic studies confirmed normal bladder compliance in all augmented bladders.
  • Histology revealed normal cellular organization, including urothelial lining, smooth muscle, and nerve fibers.

Conclusions:

  • Allogenic bladder submucosa seeded with cells is a promising biomaterial for bladder augmentation.
  • Cell-seeded grafts demonstrate superior efficacy in restoring bladder capacity and function.