摘要
目的:分析神经鞘瘤22号染色体杂合子丢失(CHR22 LOH)及其与临床行为之间的关系。方法:通过变性聚丙烯酰胺凝胶、银染观察神经鞘瘤CHR22 LOH频率;通过Ki-67、PCNA免疫组织化学计算神经鞘瘤的增殖指数。结果:36例神经鞘瘤中15例发生CHR22 LOH(41.6%),发生缺失的神经鞘瘤的增殖指数高于无缺失者(P<0.05)。结论:CHR22 LOH是神经鞘瘤发生中的常发事件,缺失的区域包括NF2基因,CHR22 LOH可能是神经鞘瘤增殖的重要因素。
Objective: To analyze the loss of heterozygosity for markers on 22 chromosome (CHR22 LOH) and the relationship between it and clinic behavior. Methods: We observed the frequency of CHR22 LOH by denatured polyacry-lamide gels and silver staining. The proliferative index of schwannoma was calculated by Ki-67, PCNA immunohis-tochemistry. Results: 15 schwannomas(41. 6%) showed allele loss. The proliferative index of schwannomas with LOH were significantly higher than those without LOH (P<0. 05). Conclusion: CHR22 LOH was the frequent event in the tumorigenesis of sporadic schwannoma, including NF2 gene. The CHR22 LOH might be an important factor to affect the proliferation of schwannoma.
出处
《脑与神经疾病杂志》
2003年第4期205-208,共4页
Journal of Brain and Nervous Diseases
基金
上海市科委启明星课题(00QB142024)
上海市教委课题(2000QN86)资助