| Project/Area Number |
11670991
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hematology
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| Research Institution | Nagoya University |
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Principal Investigator |
MURATE Takashi Nagoya University, School of Health Science, Professor, 医学部, 教授 (30239537)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAGI Akira Nagoya University, School of Health Science, Research Associate, 医学部, 助手 (30135371)
KINOSHITA Tomohiro Nagoya University, School of Medicine, Research Associate, 医学部, 助手 (60283446)
内田 俊樹 名古屋大学, 医学部, 医員
大橋 春彦 名古屋大学, 医学部, 医員
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2000: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1999: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | HUMARA / hematopoiesis / clonality / PCR based HUMARA / methylation specific PCR / HUMARA-MSP / X chromosome inactivation / hematopoietic colonies / 造血クローン性 / PCR based HUMARA法 / 鉄芽球性貧血 / p15メチル化 / 造血幹細胞 |
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| Research Abstract |
The human androgen-receptor gene (HUMARA) has been used for analysis of X-chromosome inactivation (XCI) patter because of a polymorphic short tandem repeat (STR) near the 5'-promoter region correlated with XCI.We introduced a novel PCR based HUMARA method to analyze the clonality of the hematopoiesis of MDS patients named HUMARA methylation-specific PCR (HUMARA-MSP) assay, which analyzed methylation status of the HUMARA gene by bisulfite modification instead of a methylation-sensitive restriction enzyme. Although the original MSP method shows whether there is a methylated band, or not, our HUMARA-MSP method identifies the pattems of methylated and unmethylated bands. Because this method identifies either unmethylated or methylated alleles in each PCR tube and shows opposite band patterns dependent on methylation status, we can assess the XCI pattern independently twice. This method can avoid false results by incomplete enzyme digestion and incomplete bisulfite modification will not affect the results. Extremely small quantities of samples, such as hematopoietic colonies, were also available for HUMARA-MSP assay. The HUMAR-MSP assay may facilitate the analysis for pathogenesis of hematological disorders because of its simplicity, sensitivity and wide applicability.
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