【正文】
用前景。FCM在哺乳動(dòng)物精子研究中發(fā)揮著重要作用:通過分析生精細(xì)胞增殖周期研究精子的發(fā)生過程;還可根據(jù)X、Y精子DNA含量的差異進(jìn)行精子性別鑒定,即精子分選;檢測(cè)精液質(zhì)量。這兩種信號(hào)同時(shí)被前向的光電二極管和側(cè)向的光電倍增管接收,經(jīng)計(jì)算機(jī)處理,細(xì)胞的一系列特性就被快速準(zhǔn)確地測(cè)定。流式細(xì)胞術(shù)(flow cytometry, FCM)是20世紀(jì)70年代發(fā)展起來的一種單細(xì)胞快速分析技術(shù),已廣泛應(yīng)用于細(xì)胞生物學(xué)和醫(yī)學(xué)的各個(gè)領(lǐng)域。其他方法(包括精子染色的顯微鏡檢測(cè)、精子頸粘液相互作用檢查、精子穿透去透明帶倉鼠卵實(shí)驗(yàn)、低滲腫脹實(shí)驗(yàn)以及超微結(jié)構(gòu)檢查等)雖然可以提供精子功能方面的一些信息,但費(fèi)時(shí)費(fèi)力;檢測(cè)精子數(shù)量少;指標(biāo)單一;且易受操作者的主觀影響,不能準(zhǔn)確反映精子的功能。 Fluorescent probes精液質(zhì)量檢測(cè)在臨床治療不孕癥及家畜良種繁殖和育種中具有重要作用。 Spermatozoa。關(guān)鍵詞:流式細(xì)胞術(shù);精子;檢測(cè);熒光探針Evaluation of Mammalian Semen Quality by Flow CytometryCAI Kejun1,2, SI Wei1,2, LI YAhui1,2,3, JI Weizhi1,4(1. Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming 650223, China。流式細(xì)胞術(shù)(FCM)為精子功能研究提供了一種快速、客觀、多指標(biāo)、大通量的檢測(cè)手段;利用FCM檢測(cè)精子的質(zhì)膜完整性、頂體狀態(tài)、染色質(zhì)結(jié)構(gòu)、線粒體功能以及細(xì)胞凋亡等,可以得知精子的相關(guān)功能情況。同時(shí)具備多種特性功能完整的精子才能受精,因而只有同時(shí)客觀地檢測(cè)多個(gè)指標(biāo),才能更好地反映精子的生育力。流式細(xì)胞術(shù)在哺乳動(dòng)物精液質(zhì)量檢測(cè)中的應(yīng)用* 基金項(xiàng)目:國家自然科學(xué)基金(39970117);中國科學(xué)院重大項(xiàng)目(KZ952J1109)采克俊1,2,司 維1,2,李亞輝1,2,3,季維智1,4 通訊作者(Corresponding author),Tel: 08715139413, Email: wji,(,云南 昆明 650223。,北京 100039;,云南 昆明 650201)摘要:精液檢測(cè)的首要目標(biāo)就是快速準(zhǔn)確地確定其生育力。精子檢測(cè)的傳統(tǒng)方法費(fèi)時(shí)費(fèi)力,檢測(cè)精子數(shù)量少,指標(biāo)單一,而且易受操作者的主觀影響,不能準(zhǔn)確地反映精子功能。隨著新的熒光探針、染色方法的不斷開發(fā)和改進(jìn),F(xiàn)CM為精液質(zhì)量檢測(cè)提供了一種新的檢測(cè)平臺(tái),應(yīng)用前景極其廣闊。2. Graduate School, the Chinese Academy of Sciences, Beijing 100039, China3. College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201 ,China)Abstract: The primary goal of all semen analyses is to accurately determine the fertilizing potential of a semen sample rapidly. Since a spermatozoon must possess many attributes in order to fertilize an oocyte, the only way that we can more precisely predict the fertility is to develop unbiased assays that measure several sperm traits simultaneously. Conventional laboratory assays of spermatozoa, using subjective method, many are time consuming, and are necessarily conducted on samples of relatively small size, fall short of predicting the sperm function. Flow cytometry (FCM) permits us to objectively measure thousands of sperm for multiple characteristics in a short time with minimum preparation. The applications of FCM to evaluation of semen quality including sperm membrane integrity, acrosome status, chromatin structure, mitochondrial function as well as apoptosis etc, provide us valuable information regarding sperm function. New fluorescent probes and techniques are continuously being developed. FCM offers powerful tools and exciting opportunities for improving our ability to accur