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(A) Representative dot plots showing the expression of membrane-bound TGF-β on CD19+ B cells from 2 healthy individuals (NM) and 3 lymphoma biopsy specimens (NHL). Data acquired from multiple samples were summarized (right). (B) Histograms showing the expression of membrane-bound TGF-β on malignant B cell lines measured by flow cytometry. Solid line indicates isotype control, the shaded indicates membrane-bound TGF-β expression.
