【摘 要】
：
目的:应用荧光原位杂交(FISH)技术,以骨髓细胞涂片和骨髓活检病理组织为标本,检测多发性骨髓瘤(MM)患者分子细胞遗传学异常情况。方法:在确诊的58例初发MM患者中对48例患者取
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目的:应用荧光原位杂交(FISH)技术,以骨髓细胞涂片和骨髓活检病理组织为标本,检测多发性骨髓瘤(MM)患者分子细胞遗传学异常情况。方法:在确诊的58例初发MM患者中对48例患者取骨髓细胞进行CD138磁珠分选浆细胞后滴片、10例取骨髓制成病理组织石蜡切片,采用多个探针(d13s319、RB1、p53、1q21、IgH、IgH/FGFR3、IgH/MAF)对两种不同类型标本进行FISH检测。结果:对骨髓细胞和病理组织两种标本进行FISH检测后都出现可供分析的荧光信号,58例MM患者中,有30例检测出分子遗传学异常,总检出率为51.7%(30/58),其中d13s319缺失17例(占29.3),RB1缺失17例(占29.3),P53缺失7例(占12%),1q21扩增16例(占27.6%),IgH重排12例(20.7%),对IgH重排患者进一步检测发现IgH/FGFR3融合6例(占10.3%),IgH/MAF融合1例(占1.7%)。在这30例遗传学异常患者中,仅有7例患者检出1种异常,占23.3%(7/30),其余23例患者均具有2-5种遗传学异常,占76.7%(23/30)。结论:半数以上MM患者都存在染色体改变,而且大部分均为复杂畸变,利用不同类型标本进行FISH检测,可以扩大FISH的应用范围,为MM预后判断提供更多的分子细胞遗传学信息。
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