Intracellular TSH staining of BM cells.

Cells were stained with antimouse TSHβ mAb 1B11. BM populations are shown in the scattergram as lymphocyte precursors (R1), monocyte-macrophage precursors (R2), and granulocyte precursors (R3). Staining is compared to the reactivity of biotin-labeled mouse IgM antibody for each group. Solid lines are reactivities of control antibodies. Data are representative of 3 experiments.