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Molecular biology of 3q27 translocation in lymphoid malignancies

Molecular biology of 3q27 translocation in lymphoid malignancies
淋巴恶性肿瘤 3q27 易位的分子生物学
批准号:
06671110
负责人:
NAKAMURA Yuichi
金额:
$0.96万
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (C)
财政年份:
1994
资助国家:
日本
项目状态:
已结题
起止时间:
1994 至 1995

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中文摘要
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英文摘要
First, we studied the structural alterations within the 5' part of the BCL6 gene on the band 3q27, where is frequently affected by chromosomal translocations in B cell non-Hodgkin's lymphoma (B-NHL) patients. We found that five out of 11 patients with BCL6 abnormality had two independent DNA rearrangements on both alleles, presenting multiple rearranged bands on Southern blotting.Furthermore, in one of them, it was revealed that an internal DNA deletion of 1.5kb area was generated within the BCL6 locus on untranslocated chromosome 3. Our results suggest that the occurrence of biallelic rearrangements and submicroscopic local recombinations would be unique features with BCL6 abnormality in B-NHL.Next, we analyzed aberrant expressions of the BCL6 mRNA recognized in two cell lines harboring 3q27 translocations.Analysis of cDNA from these cells revealed that the 5' non-coding region of the BCL6 mRNA was substituted by transcripts from immunoglobulin genes including intronic sequences, forming unique chimeric transcripts.
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Nakamura Y,Miki T,Kawamata N,Hirosawa S,Saito K,Enokihara H,Furusawa S,Shishido H.: "Biallelic DNA rearrangements and deletions within the within the BCL-6 gene in B cell non-Hodgkin's lymphoma." British Journal of Haematology. 90. 404-408 (1995)
Nakamura Y、Miki T、Kawamata N、Hirosawa S、Saito K、Enokihara H、Furusawa S、Shishido H.:“B 细胞非霍奇金淋巴瘤中 BCL-6 基因内的双等位基因 DNA 重排和缺失。”
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通讯作者:
Yuichi Nakanura,et al.: "Biallelic DNA rearrangements and deletions within the BCL-6 gene in Bcell non-Hodgkin's Iymphoma." British Journal of Haematology. 90. 404-408 (1995)
Yuichi Nakanura 等人:“B 细胞非霍奇金淋巴瘤中 BCL-6 基因内的双等位基因 DNA 重排和缺失。”
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通讯作者:
Nakamura Y, et al.: "Internal DNA deletion within the BCL-6 gene on untranslocated chromosome in non-Hodgkin's lymphoma with 3q27 abnormality" Leukemia. 10(印刷中). (1996)
Nakamura Y 等人:“具有 3q27 异常的非霍奇金淋巴瘤中未易位染色体上的 BCL-6 基因内部 DNA 缺失”白血病 10(出版中)。
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7
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