Lab Guide
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Test ID: IH Uroplakin
Uroplakin
Immunohistochemistry Stain
Useful For

Expressed in tumors of urothelial origin.

Method name and description
  • Rabbit Monoclonal Antibody Uroplakin III (SP73)
  • Immunoperoxidase stain on formalin-fixed, paraffin-embedded (FFPE) tissue section
Reporting name

Uroplakin

Clinical information

Uroplakins (UPs) are a family of transmembrane proteins (UPs Ia, Ib, II and III) that are specific differentiation products of urothelial cells. In non-neoplastic mammalian urothelium, UPs are expressed in the luminal surface plasmalemma of superficial (umbrella) cells, forming complexes of 16nm crystalline particles.

Aliases

Uroplakin III 

Specimen type / Specimen volume / Specimen container
  • Specimen type: Well-fixed tissue in 10% neutral buffered formalin.
  • Submit 2 unstained (3-4 µm thick) paraffin embedded tissue section mounted on a clean positively charged glass slide  (sections to be cut within 6 weeks.) or formalin-fixed, paraffin-embedded (FFPE) tissue block.
Storage and transport instructions
  • Slides or blocks are stored in cork box at room temperature away from sun light and any source of heat.
  • Follow your local regulation shipping guidelines.
Specimen Rejection Criteria
  • Broken slides
  • Unlabeled slides with patient/case identification 
  • Contaminated slides
  • Slides/paraffin blocks mismatch
  • Uncharged slides
Factors affecting test performance and result interpretation
  • Fixation time (FT)
  • Fixative Type
  • Storage time in paraffin
  • Storage temperature
  • Age of the cut sections
  • Section thickness
Turnaround time / Days and times test performed / Specimen retention time
  • Turnaround time for the test in platform: 3-4 hours
  • Days and times test performed: Twice daily (Sunday to Wednesday)
  • First batch: 0600H-1400H
  • Second batch; 1230H - overnight
  • Thursday (one batch only): 0600H-1400H
  • Note: Request received after 1230H will be stained the following working day.
  • Shelf-life of the paraffin section slides: ≤6 weeks