Journal
ONCOTARGET
Volume 7, Issue 48, Pages 78918-78931Publisher
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.12912
Keywords
urothelial carcinoma; transcriptome; DDR2; prognosis
Categories
Funding
- Kaohsiung Medical University Aim for the Top Universities [KMU-TP104E31, KMU-TP104G00, KMU-TP104G01, KMU-TP104G04]
- health and welfare surcharge of tobacco products, Ministry of Health and Welfare [MOHW105-TDU-B-212-134007]
- Ministry of Science and Technology [MOST103-2314-B-037-067-MY3]
- Kaohsiung Medical University Hospital [KMUH101-1R47, KMUH102-2R42]
- Chi-Mei Medical Center, Chiali [CCFHR10502]
- Biobank at Chi Mei Medical Center
Ask authors/readers for more resources
The migration ability of urothelial carcinoma corresponding to dismal prognosis had not been fully investigated. The interaction of extracellular collagen with a unique transmembrane receptor tyrosine kinase, Discoidin domain receptor 2 (DDR2), was selected by data mining. We arranged real-time reverse transcription polymerase chain reaction assays to evaluate the transcript levels in 26 urinary tract urothelial carcinoma and 26 urinary bladder urothelial carcinoma specimens, showing significantly increase corresponding to advanced primary stage (p = 0.003 and p < 0.001, respectively). An immunohistochemistry analysis and H-score calculation were performed to determine DDR2 expression in 340 urinary tract urothelial carcinoma and 295 urinary bladder urothelial carcinoma. Assessments of the correlation to clinicopathologic features, disease-specific survival, and metastasis-free survival were conducted. The transcript levels in advanced stage were higher than those in early stage and were correlated with poor prognosis. The higher expression was positively correlated to higher pT status (p < 0.001), higher histological grade (urinary tract, p = 0.041; urinary bladder, p < 0.001), greater vascular invasion (p < 0.001), and higher mitotic rate (urinary tract, p = 0.039; urinary bladder, p < 0.001). Higher expression also indicates significantly worse diseasespecific survival and metastasis-free survival. In vitro study revealed knockdown of DDR2 resulted in a depletion of cellular viability, migratory, and invasive ability, supporting the oncogenic function of DDR2.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available