How Cancer Cells Invade Bladder Epithelium and Form Tumors: The Mouse Bladder Tumor Model as a Model of Tumor Recurrence in Patients
| Autor: | Peter Veranič, Urska Kamensek, Andreja Erman, Mojca Pavlin, Rok Romih, Urška Dragin Jerman, Maja Čemažar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Pathology Epithelium 0302 clinical medicine Cell Movement bladder tumor Medicine Biology (General) Spectroscopy Urinary bladder biology General Medicine Cadherins Computer Science Applications Chemistry medicine.anatomical_structure Matrix Metalloproteinase 9 intercellular junctions 030220 oncology & carcinogenesis Matrix Metalloproteinase 2 Immunohistochemistry Female Basal lamina urinary bladder medicine.medical_specialty QH301-705.5 mouse bladder tumor model Catalysis Article Inorganic Chemistry 03 medical and health sciences Cell Line Tumor Cell Adhesion Animals Neoplasm Invasiveness Physical and Theoretical Chemistry Urothelium Molecular Biology QD1-999 Bladder cancer business.industry Desmoplakin Organic Chemistry Integrin alpha3beta1 urothelium junctional protein medicine.disease Mice Inbred C57BL Disease Models Animal 030104 developmental biology Urinary Bladder Neoplasms Cancer cell biology.protein Neoplasm Recurrence Local business MB49 cancer cells |
| Zdroj: | International Journal of Molecular Sciences Volume 22 Issue 12 International Journal of Molecular Sciences, Vol 22, Iss 6328, p 6328 (2021) |
| ISSN: | 1422-0067 |
| Popis: | Non-muscle-invasive bladder cancer is the most common form of bladder cancer. The main problem in managing bladder tumors is the high recurrence after the transurethral resection of bladder tumors (TURBT). Our study aimed to examine the fate of intravesically applied cancer cells as the implantation of cancer cells after TURBT is thought to be a cause of tumor recurrence. We established an orthotopic mouse bladder tumor model with MB49-GFP cancer cells and traced them during the first three days to define their location and contacts with normal urothelial cells. Data were obtained by Western blot, immunolabeling, and light and electron microscopy. We showed that within the first two hours, applied cancer cells adhered to the traumatized epithelium by cell projections containing α3β1 integrin on their tips. Cancer cells then migrated through the epithelium and on day 3, they reached the basal lamina or even penetrated it. In established bladder tumors, E-cadherin and desmoplakin 1/2 were shown as feasible immunohistochemical markers of tumor margins based on the immunolabeling of various junctional proteins. Altogether, these results for the first time illustrate cancer cell implantation in vivo mimicking cellular events of tumor recurrence in bladder cancer patients. |
| Databáze: | OpenAIRE |
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