目的：探討雌激素影響人精子頂體反應的可能機制。方法：應用異硫氰酸熒光素標記豌豆凝集素熒光染色法（FITC-PSA）分析精子頂體反應（AR）、以分光光度比色法測定頂體酶（ACE）活性。結果：17β-雌二醇（17β-E2）可促進精子發生AR，并增強精子頂體酶的活性；去除培養液中的Ca2+后，17β-E2不能誘導精子發生AR；PKC抑制劑能明顯降低17β-E2所誘導的AR；E2-BSA亦能夠促進精子發生AR，其作用與17β-E2無顯著差異。結論：雌激素對人精子頂體反應有一定的促進作用，增強精子頂體酶活性可能是其作用途徑之一，此過程涉及了胞外Ca2+、PKC及精子膜上的ER或雌激素結合位點的參與。
Objective To summarize current research status of sperm protein 17 (SP17) in breast cancer. Method Bysearching PubMed, Web of Science, CNKI, and Wanfang databases, the studies about expression and function of SP17 in the breast cancer were summarized. Results SP17 only expressed in the breast cancer tissue but not in the normal breast tissue. The result of the study showed that SP17 was only detected in the metastatic stage of tumor cells. The preclinical trails found that the breast cancer cells with SP17 positive expression could be killed by the specific T lymphocyte. Conclusions SP17 might be a potential target of immunotherapy of breast cancer, it might promote metastasis of cancer. More studies are needed to further explore its function in tumor development, thus accelerate its application in clinical practice.