CXCL12、CXCR4、MVD在多发性骨髓瘤骨髓微龛中表达及意义

摘要

目的 探讨趋化因子配体12(CXCL12)、趋化因子受体4(CXCR4)、微血管密度(MVD)在多发性骨髓瘤(MM)骨髓微龛中的表达、分布、意义及其相互关系.方法 收集MM患者63例作为试验组,选择健康人42例作为对照组.采用免疫组织化学方法检测两组骨髓活检片中CXCL12、CXCR4、MVD表达及分布.结果 试验组骨髓活检组织中CXCL12、CXCR4、MVD表达明显高于对照组,差异有统计学意义(P＜0.05),三者在骨髓中表达与性别、年龄、免疫球蛋白分型、轻链分类表达差异无统计学意义(P＞0.05);CXCL12表达与CXCR4、MVD表达均呈正相关(P＜0.05).结论 MM中CXCL12、CXCR4、MVD表达可能与疾病发生相关;CXCL12/CXCR4生物轴促进MM骨髓微龛血管新生.%Objective To study expression,distribution,significance and relationship of CXCL12,CXCR4,microvessel density (MVD) in multiple myeloma (MM) bone marrow micro niche.Methods 63 cases of patients with MM were chosen as the experimental group,42 cases of healthy persons were chosen as the control group.The expression and distribution of CXCL12,CXCR4,MVD were detected by immunohistochemical method.Results Compared with the control group,the expressions of CXCL12,CXCR4,MVD in the experimental group were higher,the difference was statistically significant (P ＜ 0.05),their expressions in bone marrow were not significantly different from gender,age,immunoglobulin type and light chain classification (P＞0.05);the expression of CXCR4,MVD were positively related with CXCL12 (P＜0.05).Conclusion The expression of CXCL12,CXCR4,MVD may be related to the occurrence of MM;CXCL12/CXCR4 biological axis could promote the angiogenesis of MM bone marrow micro niche.