中文摘要：

CD44在许多恶性血液病中均有表达，其表达水平与疾病的临床状况及预后相关。对CD44及其单克隆抗体的研究在血液系统恶性肿瘤的诊断、预后和治疗中具有重要意义。

英文摘要：

CD44 is expressed in a number of hematological malignancies, its expression level is related with clinical status and prognosis. Study of CD44 and its monoclonal antibody has significance in diagnosis, prognosis and treatment of malignant hematopoietic system tumors.