一种从骨巨细胞瘤组织中纯化破骨细胞的简单方法

目的从人骨巨细胞瘤组织中分离纯化及鉴定破骨细胞。方法我们利用0．25％胰酶-EDTA和Ⅰ型胶原酶从人骨巨细胞瘤组织中纯化出大量破骨细胞，并进行表型特征的鉴定：包括抗酒石酸酸性磷酸酶染色(TRAP染色)，采用RT-PCR方法检测降钙素受体、组织蛋白酶K和破骨细胞分化因子受体(RANK)表达。结果该方法所得细胞纯度可达79．7％，具有破骨细胞表型特征。结论该方法所得破骨细胞可用于生化和分子生物学研究，是进行骨代谢研究较好的破骨细胞来源。

A Simplified Method for Purifying Osteoclasts from Human Giant Cell Tumor of Bone

Objective: To study the prognostic value of the pathological margin and molecular margin marked by eIF4E and P53 protein in laryngeal carcinoma. Methods: The prognostic value of pathological and molecular margin was studied in 253 cases and 67 cases respectively, the latter were pathological negative margin chosen from the former. Immunohistochemisty was used to detect the expression of eIF4E and p53 proteins. Results: The rate of pathological, p53 and eIF4E positive margins was 20.2%, 19.4% and 32.8% respectively. The recurrent rate of those with positive margins was higher than that of negative margins, which including pathological margin (70.6% vs 35.1%, P=0.0000), p53 margin (69.2% vs 33.3%, P=0.018) and eIF4E margin (63.6% vs 28.9%, P=0.018); The survival rate of those with negative margins was higher than those with positive margins, including pathological margin (the 5-year cumulative survival rate was 37.52% and 64.37% respectively, P=0.0023), p53 margin (the 5-year cumulative survival rate was 24.62% and 75.69% respectively, P=0.0012) and eIF4E margin (the 5-year cumulative survival rate was 43.31% and 77.52% respectively, P=0.0006). Conclusion: The prognosis of those with both pathological and molecular positive margins was worse than that of the negative margins; Both the eIF4E and p53 were useful markers to pick out the poor prognostic patients from those with pathological negative margin, and the former seemed to be more potential.