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2002 Fiscal Year Final Research Report Summary

The state of DNA methylation in the promoter regions of the human red cell membrane protein genes

Research Project

Project/Area Number 12671014
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Hematology
Research InstitutionKawasaki Medical School

Principal Investigator

WADA Hideho  Division of Hematology, Department of Medicine, Kawasaki Medical School, Assistant professor, 医学部, 講師 (70191830)

Co-Investigator(Kenkyū-buntansha) YAWATA Yoshihito  Department of Care Work, Kawasaki College of Allied Health Professions, Professor, 介護福祉科, 教授 (70069011)
SUGIHARA Takashi  Division of Hematology, Department of Medicine, Kawasaki Medical School, Professor, 医学部, 教授 (60140505)
Project Period (FY) 2000 – 2002
KeywordsDNA methylation / promoter / red cell membrane / protein 4.2 / β-spectrin / band3 / UT-7 / Epo / 5'-CpG-3' sites
Research Abstract

The state of methylation of the 5'-CpG-3' sites is known to be linked to the regulation of promoter function by modulating DNA-protein interactions and to the structure of chromatin. As part of a project to determine methylation patterns in the human genome, the methylation profiles were examined in genes for the human erythroid membrane proteins; protein 4.2 (P4.2), gene (ELB42), band 3 (B3), gene (EPB3), and β -spectrin (β -Sp), gene (SPTB). The bisulfite protocol of the genomic sequencing method was applied. (1) In the DNA from peripheral white blood cells, the promoter regions of EPB3 and ELB42 were extensively methylated, but the promoter of SPTB was totally unmethylated. (2) During erythroid differentiation, (I) ELB42 was unmethylated in DNAs from the cell line UT-7/Epo, but became methylated (55-93%) in cultured erythroblasts from peripheral BFU-E. The Mrna from ELB42 was first detected in early erythroblasts and protein 4.2 was expressed in late erythroblasts. (ii) EPB3 was consistently methylated in UT-7/Epo and also in cultured erythroblasts from burst forming unit erythroid (BFU-E) from peripheral blood. EPB3 and ELB42 were efficiently transcribed in UT-7 cells only after erythropoietin stimulation. (iii) SPTB remained unmethylated in DNAs from UT-7/Epo and cultured erythroblasts. (3) We also investigated methylation profiles in peripheral white blood cells from patients with erythroid diseases, like complete P4.2 deficiency due to ELB42 mutations, hereditary spherocytosis with EPB3 mutations, and hereditary elliptocytosis with SPTB mutations. The methylation profiles of the promoter regions of these three genes were essentially identical to those in healthy individuals

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Yawata, Y.: "Protein 4.2 : normal and abnormal in clinical hematology, protein chemistry, molecular genetics, and structure"Kawasaki Med.J.. 26. 35-82 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yawata, Y.: "Characteristic features of genotype and phenotype of hereditary spherocytosis in the Japanese population"Tnt.J.Hematol.. 71. 118-135 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yawata, Y.: "Genotypic and phenotypic expressions of protein 4.2 in human erythroid cells"Gene Function and Disease. 2. 1-21 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nakanishi, H.: "Ankyrin gene mutations in Japanese patients with hereditary spherocytosis"Int.J.Hematol.. 73. 54-63 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 和田 秀穂: "Gene methylationと赤血球膜蛋白の発現調節"臨床血液. 42・5. 390-392 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Remus, R.: "The state of DNA methylation in the promotor regions of the human red cell membrane protein (band 3, protein 4.2, and β-spectrin) genes"Gene Function and Disease. 2。4. 171-184 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 八幡 義人: "血液病アトラス(三刷増補版)"南江堂(東京). 212 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] "Protein 4.2: normal and abnormal in clinical hematology, protein chemistry, molecular genetics, andstructure"Kawasaki Med. J. 26. 35-82 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Characteristic features of genotype and phenotype of hereditary spherocytosis in the Japanese population"Int. J. Hematol. 71. 118-135 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Genotypic and phenotypic expressions of protein 4.2 in human erythroid cells"Gene Function and Disease. 2. 1-21 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Ankyrin gene mutations in Japanese patients with hereditaryspherocytosis"Int. J. Hematol. 73. 54-63 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "The state of DNA methylation in the promotor regions of the human red cell membrane protein (band 3, protein 4.2, and β-spectrin) genes"Gene Function and Disease. 2・4. 171-184 (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2004-04-14  

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