Identification and functional study of osteosarcoma metastasis marker genes

Shi,Rui; Li,Juan; Tang,Fan; Luo,Yi; Tu,Chong-Qi

doi:10.3892/ol.2015.3444

Identification and functional study of osteosarcoma metastasis marker genes

Authors:
- Rui Shi
- Juan Li
- Fan Tang
- Yi Luo
- Chong-Qi Tu
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Affiliations: Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China, Department of Pulmonary Tumors, Sichuan Cancer Hospital, Chengdu, Sichuan 610041, P.R. China
Published online on: July 1, 2015 https://doi.org/10.3892/ol.2015.3444
Pages: 1848-1852

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Abstract

To date, osteosarcoma metastasis genes, which are key for accurate initial diagnosis of the disease, have not been well identified. In the present study, osteosarcoma samples with and without metastasis were collected from 31 patients. Specific complementary DNA subtraction techniques were used to identify the osteosarcoma metastasis transcripts, which are responsible for the metastasis of osteosarcoma. The specific differentially expressed transcripts were identified by Basic Local Alignment Search Tool analysis and the results were validated by immunoblotting. Specifically, ezrin and β4 integrin were employed as markers to detect osteosarcoma metastasis in the initial stages. The results of the present study indicated that the two transcripts, ezrin and β4 integrin, were highly expressed in patients with osteosarcoma metastasis, and concluded that these were osteosarcoma metastasis genes. These results indicate that β4 integrin and/or ezrin may be used as a novel marker for the detection of osteosarcoma metastasis in the initial stages.

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