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The term myeloid (myelogenous) is an adjective that can refer to a progenitor cell for granulocytes, monocytes, erythrocytes, or platelets. Myeloid can be distinguished from the lymphoid progenitor cells that give rise to B cells and T cells.〔 Myleloid is thus associated with the innate immune system, in contrast to lymphoid, which is associated with the adaptive immune system. ''Myelogenous'' usually refers to nonlymphocytic white blood cells, and ''erythroid'' can often be used to distinguish erythrocyte-related from ''myeloid'' and ''lymphoid''. Myeloid cells originate in bone marrow or spinal cord, or a resemblance to the marrow or spinal cord. For example, myeloid leukemia is leukemia that arises from abnormal growth in the blood-forming tissue of the bone marrow. This term should not be confused with "myelin", which is an insulating layer covering the axons of many neurons. Myeloid neoplasms always concern bone marrow and are related to hematopoietic cells. ==See also== * Acute myeloid leukemia * Haematopoiesis * Pluripotent hematopoietic stem cell 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「myeloid」の詳細全文を読む スポンサード リンク
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