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Investigations of urothelial cells seeded on commercially available small intestine submucosa.

Abstract：

OBJECTIVES:To examine adherence and viability of human urothelial cells seeded on commercially available small intestine submucosa (SIS) specimens under serum-free conditions. MATERIALS AND METHODS:Before seeding, SIS was either washed with incubation medium or coated with collagen A, fibronectin, or pronectin. A possible influence of SIS itself on the viability of urothelial cells was analysed with conditioned cell culture medium obtained by incubation of SIS for 24hours. In addition, untreated SIS and a setting without SIS were used as controls. Viability of urothelial cells was analysed with the WST-1 assay until day 9. Histology of seeded and unseeded SIS specimens was investigated after Papanicolaou staining. To demonstrate urothelial cell adherence on SIS, immunohistology was performed with a mixture of monoclonal AE1 and AE3 anticytokeratin antibodies. RESULTS:Urothelial cells seeded on SIS revealed no measurable cell viability. SIS-conditioned cell culture medium was cytotoxic for urothelial cells after 24 hours. Histology only demonstrated cell nuclei and no cytoplasm both in seeded and unseeded SIS specimens, thus indicating porcine DNA. Expression of the cell type-specific marker proteins AE1/AE3 could not be demonstrated. CONCLUSION:Since the commercially available SIS specimens used contained porcine DNA residues and demonstrated cytotoxic effects on urothelial cells, SIS is not suitable for in vitro construction of urothelial cell-matrix implants.

journal_name

Eur Urol

journal_title

European urology

authors

Feil G,Christ-Adler M,Maurer S,Corvin S,Rennekampff HO,Krug J,Hennenlotter J,Kuehs U,Stenzl A,Sievert KD

doi

10.1016/j.eururo.2006.05.041

subject

Has Abstract

pub_date

2006-12-01 00:00:00

pages

1330-7

issue

6

eissn

0302-2838

issn

1873-7560

pii

S0302-2838(06)00634-8

journal_volume

50

pub_type

杂志文章

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