A study by Adriana Turqueti-Neves, David Voehringer and colleagues reveals that repertoires of IgE—the class of antibody that mediates allergic reactions—closely resemble those of IgG1, suggesting that the memory IgE response unfolds from IgG1-switched B cells (and not from IgM-expressing B cells) in response to T cell-derived cytokines. The image shows free-living larval stages of the gastroingestinal helminth Nippostrongylus brasiliensis which was used to study the IgE response in mice. The original picture was taken with a 5x objective under a light microscope and colored using Adobe Photoshop software.
Image Credit: David Voehringer
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