中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (29): 4691-4696.doi: 10.3969/j.issn.2095-4344.2017.29.017

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

异基因造血干细胞移植治疗慢性髓细胞性白血病监测染色体核型及融合基因表达

李正发,刘 伟,杜云云,杨同华,赵 婕,史克倩,唐新华,杨艳梅,章印红,赖 洵,闻 艳,陆志祥   

  1. 云南省第一人民医院血液内科,云南省昆明市 650032
  • 修回日期:2017-05-16 出版日期:2017-10-18 发布日期:2017-11-08
  • 通讯作者: 刘伟,硕士,云南省第一人民医院血液科,云南省昆明市 650032
  • 作者简介:李正发,男,1967年生,云南省昆明市人,主任医师,教授,主要从事白血病药物治疗机制、干细胞移植、微小残留病检测方法研究。
  • 基金资助:

    云南省自然科学基金及云南省人民医院科研基金资助项目(2000C030Q,2003YK011)

Clinical monitoring of chromosome karyotype and fusion gene expression after allogeneic hematopoietic stem cell transplantation in chronic myelocytic leukemia

Li Zheng-fa, Liu Wei, Du Yun-yun, Yang Tong-hua, Zhao Jie, Shi Ke-qian, Tang Xin-hua, Yang Yan-mei,Zhang Yin-hong, Lai Xun, Wen Yan, Lu Zhi-xiang   

  1. Department of Hematology, First People’s Hospital of Yunnan Province, Kunming 650032, Yunnan Province, China
  • Revised:2017-05-16 Online:2017-10-18 Published:2017-11-08
  • Contact: Liu Wei, Master, Department of Hematology, First People’s Hospital of Yunnan Province, Kunming 650032, Yunnan Province, China
  • About author:Li Zheng-fa, Chief physician, Professor, Department of Hematology, First People’s Hospital of Yunnan Province, Kunming 650032, Yunnan Province, China
  • Supported by:

    the Natural Science Foundation of Yunnan Province & the Scientific Research Foundation of Yunnan Provincial People’s Hospital, No. 2000C030Q, 2003YK011

摘要:

文章快速阅读:

文题释义:
异基因造血干细胞移植:
按造血干细胞的来源部位可分为骨髓移植、外周血干细胞移植和脐血干细胞移植。按造血干细胞来自患者自身与否可分为自体移植、同基因移植和异基因移植。其中同基因移植是指患者与移植供体为同卵孪生兄弟或姐妹。对急性白血病无供体者,在治疗完全缓解后,采取其自身造血干细胞用于移植,称为“自体造血干细胞移植”。因为缓解期骨髓或外周中恶性细胞极少,可视为“正常”细胞,但一般复发率较高,因而疗效比异体移植稍差。

 

摘要
背景:
有报告显示,70%的慢性髓细胞性白血病患者异基因造血干细胞移植后1-5个月的细胞遗传学和基因标志检测阴性,但个别病例移植后1-3个月内反复变化,移植3-12个月的阴性率可达89.5%。
目的:监测异基因造血干细胞移植治疗慢性髓细胞性白血病后的细胞分子遗传学标志变化,探讨其预后意义。
方法:纳入异基因造血干细胞移植治疗慢性髓细胞性白血病患者17例,移植后30 d及2,3,4,6,12,24,36,48,60,72个月,采用骨髓细胞短期培养法和直接法G显带分析患者染色体,双色荧光原位杂交检测bcr/abl融合基因,RQ-PCR检测骨髓原代细胞的bcr/abl基因。
结果与结论:17例患者中,8例为男患/男供者异基因造血干细胞移植,7例为男患/女供者异基因造血干细胞移植(同胞姐妹),移植后多次复查染色体核型为46XX(女性核型),未见Y染色体及其他畸变染色体核型;1例为女患/女供者异基因造血干细胞移植(其姐妹);1例为女患/无亲缘男供异基因造血干细胞移植,移植后1个月时染色体核型46XY,但bcr/abl阳性,4个月后持续表达46XY,bcr/abl阴性,观察超过96个月,为持续缓解,说明疗效良好;其中1男患/男供(全相合同胞弟)异基因造血干细胞移植后,1-12个月Ph染色体bcr/abl基因持续阳性表达,施行供者淋巴细胞输注,48个月后染色体bcr/abl转阴性表达,为持续缓解。结果表明,慢性髓细胞性白血病患者实施异基因造血干细胞移植后,染色体核型、bcr/abl融合基因监测对后续治疗选择、预后判断有重要参考价值。

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID:
0000-0002-7221-6332(刘伟)

关键词: 干细胞, 移植, 异基因造血干细胞移植, 染色体核型, bcr/abl融合基因, 慢性髓细胞白血病, 云南省自然科学基金

Abstract:

BACKGROUND: It has been reported that 70% of patients with chronic myeloid leukemia (CML) are negative for cytogenetic and genetic markers within 1-5 months after allogeneic hematopoietic stem cell transplantation (allo-HSCT), but there are still some patients who have repeatedly varied outcomes in cytogenetic and genetic marker detection. Overall, the negative rate is up to 89.5% at 3-12 months after allo-HSCT.
OBJECTIVE: To monitor the changes in cytogenetic and genetic marker expression and to explore the prognostic significance in CML patients undergoing allo-HSCT.
METHODS: Seventeen CML patients who had undergone allo-HSCT were enrolled. Chromosome G banding pattern of the bone marrow from these patients were analyzed using short-term culture method and direct method at 30 days, 2, 3, 4, 6, 12, 24, 36, 48, 60, 72 months after allo-HSCT. Dual-color fluorescence in situ hybridization was used to detect bcr-abl fusion gene; bcr-abl expressions in primary bone marrow cells from CML patients were detected using RQ-PCR.
RESULTS AND CONCLUSION: There were 8/17 cases of male patient/male donor and 7/17cases of male patient/female donor (compatriots). 46XX karyotype (women) was detected by multiple reexaminations after transplantation, and there was no Y chromosome or other aberration of chromosome karyotype in their karyotype. Among the 17 cases, 1 case of female patient/female donor (compatriots) and 1 case of female patient/male donor (unrelated) manifested 46 XY chromosome karyotype and bcr-abl positive at 1 month after transplantation; after 4 months, these two cases still maintained 46 XY chromosome karyotype but bcr-abl negative; after 4-96 months, the karyotype continued to remain as 46 XY, and bcr-abl (-). Among the 17 cases, 1 case of male patient/male donor of full-matched compatriot (brother) manifested that Ph chromosomal bcr-abl gene continuously expressed within 1-12 months after allo-HSCT; then the cases was given donor lymphocyte infusion, and the bcr-abl expression returned to be negative at 48 months after transplantation. To conclude, chromosomal karyotype analysis and bcr-abl fusion gene monitoring provide important reference value for subsequent treatment options and prognosis judgment for CML patients with allo-HSCT.

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words: Hematopoietic Stem Cell Transplantation, Leukemia, Myelogenous, Chronic, BCR-ABL Positive, Tissue Engineering

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