摘要
目的:研究 DKK—1(Dickkopf—1)在神经母细胞瘤组织中的表达及临床意义。方法收集本院小儿外科自2010年1月至2015年5月经手术切除的新鲜组织标本,其中神经母细胞瘤(neuro-blastoma,NB)38例,神经节细胞瘤12例。另选取本院病理科保存的正常儿童肾上腺组织11例作为正常对照。用免疫组化法检测 DKK—1在38例神经母细胞瘤,12例神经节细胞瘤及11例正常肾上腺组织中的蛋白表达。结果DKK—1蛋白定位于细胞膜和细胞浆。DKK—1在正常肾上腺组织中呈强阳性表达,在神经节细胞瘤组织中呈弱阳性表达,在神经母细胞瘤组织中呈阴性表达。神经节细胞瘤和神经母细胞瘤中 DKK—1的表达量分别与正常对照组相比,差异均有统计学意义(P <0.001)。在3种组织中,不同组间 DKK—1的表达差异有统计学意义(F =187.257,P <0.001)。结论DKK —1在神经母细胞瘤组织中呈低水平表达,提示其可作为一个特殊的分子标记物,有望应用于神经母细胞瘤的早期诊断及预后监测。
Objetive To investigate the expression of DKK—1 in pediatric neuroblastoma(NB)tissues. Methods The expressions of DKK—1 in 38 cases of pediatric NB tissues,12 cases of pediatric gangliocytoma tissues and 11 cases of pediatric normal adrenal tissues were detected by immunohistochemical staining. Re-sults DKK—1 protein was localized in the cell membrane and cytoplasm.DKK —1 showed strong positive ex-pression in normal adrenal tissues,weakly positive expression in gangliocytoma tissues and negative expression in NB tissues,the difference was statistically significant(P 〈0.001 ).The expression differences between three different groups were statistically significant (F =187.257,P 〈0.001 ).Conclusions The expression of DKK—1 in NB tissues was lower than that of gangliocytoma tissues and normal adrenal tissues,which suggests that DKK—1 may play as a potential molecular marker for early diagnosis and prognosis monitoring in NB.
出处
《临床小儿外科杂志》
CAS
2015年第5期388-390,410,共4页
Journal of Clinical Pediatric Surgery
基金
国家自然科学青年基金项目,项目名称:DKK-1在神经母细胞瘤分化调控中的作用及其分子机制研究,编号(81502187).