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Expression and clinical significance of zinc-α2-glycoprotein 1 in osteosarcoma tissues
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Abstract:
Objective: To investigate the expression of zinc-α2-glycoprotein 1 (AZGP1) in osteosarcoma tissue and its relationship with clinicopathological features and prognosis of patients. Methods: A total of 62 pairs of cancer tissue and adjacent normal tissue samples from patients with osteosarcoma treated in the Department of Orthopedics, Second People's Hospital of Nanyang City were collected from August 2012 to August 2014. The expressions of AZGP1 in osteosarcoma tissues and adjacent tissues were detected by using immunohistochemical staining. All patients were followed up on the second day after the operation. The deadline was August 31,2019. All patients were followed up for 5 years, with death as the end event. The number of end events within 5 years and overall survival (OS) time of the patients were recorded. Kaplan-Meier method was used for survival analysis, and Cox proportional hazard model was used for multivariate analysis of factors affecting patients’survival. Results: The positive expression rate of AZGP1 in the osteosarcoma tissues was significantly higher than that in the adjacent tissues (77.42% vs 32.26%, P<0.01). There were significant differences in the positive expression rates of AZGP1 in patients with different Eneeking stages, soft tissue infiltration or not and lung metastasis conditions (all P<0.05). Kaplan-Meier survival analysis showed that the average OS time and 5-year OS rate of patients in the AZGP1 positive expression group were significantly lower than those in the negative expression group [(24.19±2.68) months vs (43.07±3.70) months, P<0.01; 18.75% vs 64.29%, P<0.01]. The lung metastasis and positive expression of AZGP1 were risk factors affecting the prognosis of patients with osteosarcoma (HR=3.407, 3.647, all P<0.05). Conclusion: AZGP1 is highly expressed in osteosarcoma tissues, and it is related to the malignant indicators and prognosis of patients. It may be a potential marker for evaluating the prognosis of osteosarcoma patients.
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Project Supported:
Project supported by the Joint Project of Medical Science and Technology Research Plan of Henan Province (No. LHGJ20190168)
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