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Fig. 1 | Respiratory Research

Fig. 1

From: IL-10 producing regulatory B cells are decreased in blood from smokers and COPD patients

Fig. 1

Immunohistochemistry (IHC) of IL-10 producing regulatory B cells in human lung tissue. Representative images of IL-10 + CD20 + double positive immunofluorescent staining showing positive signal in A human lung parenchyma within proximity of an airway, and B lymphoid follicles found in human lung samples. All images were taken at a 630 × magnification. Small images are individual channel results. White arrows point towards IL-10 + CD20 + double positive cells

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