Expression of CD28 by Bone Marrow Stromal Cells and Its Involvement in B Lymphopoiesis

Young mice lacking CD28 have normal numbers of peripheral B cells; however, abnormalities exist in the humoral immune response that may result from an intrinsic defect in the B cells. The goal of this study was to assess whether CD28 could be involved in the development of B cells. CD28 mRNA was det...

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