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Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
Published on: September 26, 2013
Cutting edge: CTLA-4--B7 interaction suppresses Th17 cell differentiation.
Haiyan Ying1, Lifen Yang, Guilin Qiao
1Laboratory of Molecular Cancer Biology, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, People's Republic of China.
Journal of Immunology (Baltimore, Md. : 1950)
|July 6, 2010
Summary
The interaction between CTLA-4 and B7 inhibits T helper 17 (Th17) cell differentiation and suppresses autoimmune diseases. Blocking this interaction enhances Th17 responses and increases disease severity.
Area of Science:
- Immunology
- Autoimmunity
Background:
- T helper 17 (Th17) cells are crucial in autoimmune diseases.
- The role of CTLA-4 in Th17 cell development was previously unknown.
Purpose of the Study:
- To investigate the role of CTLA-4-B7 interaction in Th17 cell differentiation and autoimmunity.
Main Methods:
- Blocking CTLA-4-B7 interaction in vitro and in vivo.
- Assessing Th17 cell differentiation and experimental autoimmune myocarditis severity in mice.
Main Results:
- Blocking CTLA-4-B7 interaction potentiated Th17 cell differentiation in vitro and in vivo.
- Blocking CTLA-4-B7 interaction increased susceptibility and severity of experimental autoimmune myocarditis.
- Enhanced disease was mediated by heightened Th17 responses.
Conclusions:
- CTLA-4-B7 interaction inhibits Th17 differentiation.
- CTLA-4-B7 interaction suppresses Th17-mediated autoimmunity.
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