What question did this study set out to answer?

To determine the molecular mechanisms by which chronic IgE B cell receptor signaling regulates IgE production and B cell differentiation.

December 9, 2016eLifeOpen Access

Regulation of B cell fate by chronic activity of the IgE B cell receptor

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Authors

ZYZhiyong YangUniversity of Maryland, Baltimore MRMarcus J RobinsonMonash University XCXiangjun ChenZhejiang Institute of Special Equipment Inspection

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Implication

Murine and cell culture study reveals that chronic IgE receptor activity restricts B cell fate in mice, suggesting key regulatory mechanisms governing allergic reactions.

Key Points

To determine the molecular mechanisms by which chronic IgE B cell receptor signaling regulates IgE production and B cell differentiation.
Cultured IgE-expressing B cells in vitro under conditions mimicking T cell help to evaluate antigen-independent plasma cell differentiation.
Evaluated the molecular signaling pathway by tracking the involvement of Syk, CD19, BLNK, Btk, and IRF4.
Disrupted B cell receptor signaling in mouse models to analyze in vivo germinal center B cell and plasma cell dynamics.
Chronic IgE receptor signaling promoted terminal differentiation of B cells into plasma cells in an antigen-independent manner mediated by Syk, CD19, BLNK, Btk, and IRF4.
Disruption of B cell receptor signaling in mice provoked consistently exaggerated IgE-positive germinal center B cell responses alongside variable increases in plasma cells.
IgE-positive germinal center B cells exhibited prolonged cell cycles and impaired antigen presentation rather than increased intrinsic apoptosis, reducing competition for T cell help.

Cite This Study

Yang et al. (2016) studied this question.

synapsesocial.com/papers/6ab215bdbc25b6f80c7dc7d9 https://doi.org/10.7554/elife.21238

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Implication

Murine and cell culture study reveals that chronic IgE receptor activity restricts B cell fate in mice, suggesting key regulatory mechanisms governing allergic reactions.

Regulation of B cell fate by chronic activity of the IgE B cell receptor

Discussion

Member takes

Implication

Key Points

Cite This Study

Regulation of B cell fate by chronic activity of the IgE B cell receptor

Discussion

Member takes

Implication

Key Points

Cite This Study

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