Urothelium Tissue Engineering Using Biopsies From Transurethral Resection of Prostate
Last updated on July 2021Recruitment
- Recruitment Status
- Not yet recruiting
- Estimated Enrollment
- Same as current
Summary
- Conditions
- Bladder Exstrophy
- Bladder, Neurogenic
- Hypospadias
- Spina Bifida
- Urothelial Neoplasm
- Type
- Observational
- Design
- Observational Model: OtherTime Perspective: Prospective
Participation Requirements
- Age
- Between 18 years and 125 years
- Gender
- Only males
Description
Bladder biopsies will be obtained during cystoscopy, conserved in culture medium (DMEM®), digested by dispase and sowed on collagen-coated culture support. Keratinocyte Serum Free Medium (KSFM) will be used for proliferation. Microscopy, immunohistochemistry, RNA extraction, Reverse Transcription an...
Bladder biopsies will be obtained during cystoscopy, conserved in culture medium (DMEM®), digested by dispase and sowed on collagen-coated culture support. Keratinocyte Serum Free Medium (KSFM) will be used for proliferation. Microscopy, immunohistochemistry, RNA extraction, Reverse Transcription and quantitative Polymerase Chain Reaction (RT-qPCR) will be performed during passages. Cell culture conditions will be optimized to improve proliferation and avoid loss of differentiation. The investigators will develop scaffolds based on sodium alginate hydrogels, followed by freeze-drying to generate porous sponges (at -20°C and -80°C). Cultured cells will be associated to these original scaffolds and to other scaffolds, for example alginate hydrogels or Collagen Cell Carrier (CCC), cultivated for 28 days and analyzed. Histological and immunohistological appearance of cellularized scaffolds will be compared to assess the effectiveness of each scaffold for tissue engineering in urothelium. Cellularized scaffolds will be studied in vitro (Transepithelial Electrical Resistance, impermeability, ability to be stitched, resistance to urine) and in vivo in ectopic location (subcutaneous location in Nude mice) or in orthotopic location (bladder augmentation in small animal).
Tracking Information
- NCT #
- NCT03698721
- Collaborators
- Not Provided
- Investigators
- Not Provided