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已经发现许多蛋白质酪氨酸激酶（Proteintyros1neUnase，PTK）是癌基因的产物。由于许多癌基因中有PTK的密码，所以PTK活性的变化可以反映癌基因表达的增加或改变，该文的目的是确定PTK活性在喉癌和正常粘膜中有无差异。标本来源于38例喉鳞状细胞癌患者，其中29例同时做非肿瘤?
It has been found that many protein tyrosine kinases (PTKs) are products of oncogenes. Since many oncogenes have the PTK codon, changes in PTK activity can reflect increases or changes in oncogene expression in order to determine whether PTK activity is differentially expressed in laryngeal carcinomas and normal mucosa. Specimens from 38 patients with laryngeal squamous cell carcinoma, including 29 cases of non-tumor at the same time?