Surface antigens of murine hemopoietic stem cells. VIII. Antisera define lineage antigens held in common between granulocyte-macrophage cells and between lymphoid cells.

Abstract

The cell-lineage model of hemopoietic cell differentiation has been further investigated by detailed absorption analysis of the anti-stem cell activity in rabbit antisera against mouse hemopoietic cells. Of seven differentiated hematopoietic cells tested, platelets alone absorbed the anti-stem cell activity in anti-platelet serum. Thymocytes and B-lymphocytes absorbed all of the anti-stem cell activity in antithymocyte serum whereas other nonlymphocytic cells showed only partial absorbing ability. Macrophages and granulocytic cells absorbed most of the anti-stem cell activity in antimacrophage serum and antineutrophil serum whereas other cell types showed little or no absorbing capacity. Antisera against a cloned mast cell precursor line showed partial cell lineage activity whereas anti-sera against eosinophils and B-lymphocytes showed no evidence of cell lineage activity. A detailed model of cell lineage antigens on hemopoietic cells is presented.