Targeting canine bladder transitional cell carcinoma with a human bladder cancer-specific ligand

Tzu-Yin Lin, Hongyong Zhang, Sisi Wang, Li Xie, Bin Li, Carlos O. Rodriguez, Ralph W deVere White, Chong-Xian Pan

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Objective: To determine if a human bladder cancer-specific peptide named PLZ4 can target canine bladder cancer cells.Experimental Design: The binding of PLZ4 to five established canine invasive transitional cell carcinoma (TCC) cell lines and to normal canine bladder urothelial cells was determined using the whole cell binding assay and an affinitofluorescence assay. The WST-8 assay was performed to determine whether PLZ4 affected cell viability. In vivo tumor-specific homing/targeting property and biodistribution of PLZ4 was performed in a mouse xenograft model via tail vein injection and was confirmed with ex vivo imaging.Results: PLZ4 exhibited high affinity and specific dose-dependent binding to canine bladder TCC cell lines, but not to normal canine urothelial cells. No significant changes in cell viability or proliferation were observed upon incubation with PLZ4. The in vivo and ex vivo optical imaging study showed that, when linked with the near-infrared fluorescent dye Cy5.5, PLZ4 substantially accumulated at the canine bladder cancer foci in the mouse xenograft model as compared to the control.Conclusions and Clinical Relevance: PLZ4 can specifically bind to canine bladder cancer cells. This suggests that the preclinical studies of PLZ4 as a potential diagnostic and therapeutic agent can be performed in dogs with naturally occurring bladder cancer, and that PLZ4 can possibly be developed in the management of canine bladder cancer.

Original languageEnglish (US)
Article number9
JournalMolecular Cancer
Volume10
DOIs
StatePublished - Jan 27 2011

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Transitional Cell Carcinoma
Urinary Bladder Neoplasms
Canidae
Urinary Bladder
Ligands
Heterografts
Cell Survival
Cell Line
Optical Imaging
Fluorescent Dyes
Tail
Veins
Research Design
Cell Proliferation
Dogs
Injections

ASJC Scopus subject areas

  • Cancer Research
  • Molecular Medicine
  • Oncology

Cite this

Targeting canine bladder transitional cell carcinoma with a human bladder cancer-specific ligand. / Lin, Tzu-Yin; Zhang, Hongyong; Wang, Sisi; Xie, Li; Li, Bin; Rodriguez, Carlos O.; deVere White, Ralph W; Pan, Chong-Xian.

In: Molecular Cancer, Vol. 10, 9, 27.01.2011.

Research output: Contribution to journalArticle

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AU - Rodriguez, Carlos O.

AU - deVere White, Ralph W

AU - Pan, Chong-Xian

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