• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2018 Fiscal Year Final Research Report

The regulation of memory B cell by DNA demethylation

Research Project

  • PDF
Project/Area Number 16K08738
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Experimental pathology
Research InstitutionKyushu University (2018)
Tokyo University of Science (2017)
Osaka University (2016)

Principal Investigator

TANAKA SHINYA  九州大学, 生体防御医学研究所, 助教 (80462703)

Project Period (FY) 2016-04-01 – 2019-03-31
KeywordsDNA methylation / Ten-Eleven Translocation / B cells
Outline of Final Research Achievements

DNA methylation is an well-known epigenetic modification to regulate differentiation and function of multiple linage cells. However, it has been unknown that how the modification regulates the B cell biology. In the current study, we demonstrated that a DNA demethylase, Ten-Eleven Translocation (Tet) prevented autoimmune disease by suppressing aberrant activation of B cells. In contrast, Tet molecules played a pivotal role in differentiation and/or maintenance of effector B cells such as plasma cells, germinal center B cells and memory B cells for appropriate humoral immune response. These data suggest that Tet molecules play a pleiotropic roles in differentiation and/or function of peripheral B cells.

Free Research Field

免疫学

Academic Significance and Societal Importance of the Research Achievements

B細胞は、抗体産生を担い生体防御に寄与する免疫細胞であるが、その制御が適切になされない場合は、自己免疫疾患の発症に寄与することが知られている。本研究によって、DNAメチル化制御因子であるTet分子が、B細胞の不適切な過剰活性化を抑制することにより、自己免疫疾患の発症を防ぐ役割を担っていることが明らかとなった。Tet分子活性の人為的操作によって、B細胞が原因となる自己免疫疾患のみならず、ウィルス、バクテリア感染時のB細胞の活性を制御することで液性免疫応答を調節するための新たな標的としての可能性が示唆された。

URL: 

Published: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi