受体酪氨酸激酶EphA1的研究进展

EphA1基因是受体酪氨酸激酶Eph家族中第一个成员,不仅参与胚胎发育和血管生成,而且在正常成人组织中也广泛表达。其独特的受体和配体复合物的结构特点和信号转导模式,使其在肿瘤发生、发展和转移中的作用日益受到重视。在不同器官、不同组织类型的肿瘤,甚至在同一种肿瘤发展的不同阶段,EphA1基因表达状况也有很大差异,提示该基因功能的多元性。深入研究EphA1在血管生成和肿瘤发生、发展和转移中的作用,有可能为肿瘤的早期诊断和治疗提供新的靶点。

Progress in researches of the receptor tyrosine kinase EphA1

EphA1,the first member of the Eph receptor tyrosine kinase family,not only plays a pivotal role in embryonic development and angiogenesis,but also expresses in some types of adult human tissues.Its specific characteristics of Eph/ephrin binding and the Eph/ephrin signaling transduction are fundamentally involved in tumor initiation,progression and metastasis.The expression levels of EphA1 vary considerably in different types of normal tissues and tumors,or even in different phases of tumor development,suggestive of its functional pluralism.Intensive studies of EphA1 on angiogenesis,carcinogenesis and metastasis may provide a method for the early diagnosis and a potential target for the treatment of cancers.