Expression of WNT-5a and ROR2 correlates with disease severity in osteosarcoma
- Authors:
- Bei-Ji Lu
- Yun-Qing Wang
- Xue-Jie Wei
- Liang-Qun Rong
- Dong Wei
- Chang-Ming Yan
- Deng-Jie Wang
- Jun-Ying Sun
View Affiliations
Affiliations: Department of Orthopedics, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu 215006, P.R. China, Department of Orthopedics, the Second Affiliated Hospital, Xuzhou Medical College, Xuzhou, Jiangsu 221000, P.R. China
- Published online on: January 30, 2012 https://doi.org/10.3892/mmr.2012.772
-
Pages:
1033-1036
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Abstract
Osteosarcoma, a common malignancy primarily affecting children, generally has a poor prognosis. Novel diagnostic, prognostic and therapeutic markers are required to ameliorate the negative outcomes of this disease. We investigated two potential markers, WNT-5a and ROR2, which are hypothesized to dysregulate WNT signaling pathways to promote tumorigenesis in other types of cancer. We investigated WNT-5a and ROR2 expression using immunohistochemistry in 42 osteosarcoma and 12 osteochondroma specimens, and compared the expression of these proteins with one another as well as with clinicopathological parameters. WNT-5a was detected in 34/42 (81.0%) cases and ROR2 was detected in 31/42 (73.8%) cases, significantly higher than in osteochondroma (16.7 and 25.0%, respectively; both P<0.05). Expression of these proteins was positively correlated (r=0.552, P<0.05). Furthermore, expression of WNT-5a and ROR2 was both correlated with Enneking surgical stage and tumor metastasis (P<0.05), but not with patient gender, age or pathological type. Thus, WNT-5a and ROR2 were more highly expressed in more severe disease states, and therefore may play a coordinated role in the occurrence and progression of osteosarcoma.
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