AGN

例句：

1. 1. AGN is a biomarker used to study angiogenesis.
   AGN是一种用于研究血管生成的生物标志物。
2. 2. The researchers found that AGN levels were significantly higher in patients with cancer.
   研究人员发现，癌症患者的AGN水平显著升高。
3. 3. The discovery of AGN has opened up new possibilities for treating cancer.
   AGN的发现为治疗癌症开辟了新的可能性。