中国男科学杂志
中國男科學雜誌
중국남과학잡지
CHINESE JOURNAL OF ANDROLOGY
2013年
10期
3-7
,共5页
颜秋霞%郭晓燕%陈彩蓉%李介华%蔡志明%唐爱发
顏鞦霞%郭曉燕%陳綵蓉%李介華%蔡誌明%唐愛髮
안추하%곽효연%진채용%리개화%채지명%당애발
基因芯片%Dkkl1基因%精子发生
基因芯片%Dkkl1基因%精子髮生
기인심편%Dkkl1기인%정자발생
gene chips%Dkkl1 gene%spermatogenesis
目的:研究顶体相关蛋白Dkkl1在小鼠睾丸组织发育过程中的表达特征。方法将4d、9d、18d、35d、54d和6月龄小鼠睾丸组织cDNA探针与Affymetrix全基因组芯片进行杂交,筛选出差异表达的Dkkl1基因。采用RT-PCR方法检测Dkkl1基因在小鼠不同日龄和不同组织中的表达情况,采用免疫组化方法检测Dkkl1蛋白在小鼠睾丸组织中的定位。结果对Affymetrix全基因组芯片杂交结果分析后,筛选得到1个差异表达杂交点,通过在NCBI网站与小鼠全基因组序列Blast分析可知该差异表达基因是Dkkl1基因。RT-PCR结果表明Dkkl1 mRNA呈小鼠睾丸特异性表达,在出生31d小鼠睾丸开始高表达,在成年前达到高峰。Dkkl1蛋白主要定位在睾丸精母细胞和圆形精子细胞。结论 Dkkl1基因存在发育的表达调控,为小鼠年龄依赖性表达基因,其表达与小鼠精子发生的过程有很强的一致性,且具有睾丸特异性表达的特征,因此我们推测该基因可能在精子发生中具有关键作用。
目的:研究頂體相關蛋白Dkkl1在小鼠睪汍組織髮育過程中的錶達特徵。方法將4d、9d、18d、35d、54d和6月齡小鼠睪汍組織cDNA探針與Affymetrix全基因組芯片進行雜交,篩選齣差異錶達的Dkkl1基因。採用RT-PCR方法檢測Dkkl1基因在小鼠不同日齡和不同組織中的錶達情況,採用免疫組化方法檢測Dkkl1蛋白在小鼠睪汍組織中的定位。結果對Affymetrix全基因組芯片雜交結果分析後,篩選得到1箇差異錶達雜交點,通過在NCBI網站與小鼠全基因組序列Blast分析可知該差異錶達基因是Dkkl1基因。RT-PCR結果錶明Dkkl1 mRNA呈小鼠睪汍特異性錶達,在齣生31d小鼠睪汍開始高錶達,在成年前達到高峰。Dkkl1蛋白主要定位在睪汍精母細胞和圓形精子細胞。結論 Dkkl1基因存在髮育的錶達調控,為小鼠年齡依賴性錶達基因,其錶達與小鼠精子髮生的過程有很彊的一緻性,且具有睪汍特異性錶達的特徵,因此我們推測該基因可能在精子髮生中具有關鍵作用。
목적:연구정체상관단백Dkkl1재소서고환조직발육과정중적표체특정。방법장4d、9d、18d、35d、54d화6월령소서고환조직cDNA탐침여Affymetrix전기인조심편진행잡교,사선출차이표체적Dkkl1기인。채용RT-PCR방법검측Dkkl1기인재소서불동일령화불동조직중적표체정황,채용면역조화방법검측Dkkl1단백재소서고환조직중적정위。결과대Affymetrix전기인조심편잡교결과분석후,사선득도1개차이표체잡교점,통과재NCBI망참여소서전기인조서렬Blast분석가지해차이표체기인시Dkkl1기인。RT-PCR결과표명Dkkl1 mRNA정소서고환특이성표체,재출생31d소서고환개시고표체,재성년전체도고봉。Dkkl1단백주요정위재고환정모세포화원형정자세포。결론 Dkkl1기인존재발육적표체조공,위소서년령의뢰성표체기인,기표체여소서정자발생적과정유흔강적일치성,차구유고환특이성표체적특정,인차아문추측해기인가능재정자발생중구유관건작용。
Objective To investigate the expression and distribution of Dickkopf-Like1 Protein (Dkkl1) in the development of mouse testis.Methods Testes cDNA samples from Balb/C mice in different postnatal days were hybridized with mouse whole genome affymetrix chip to screen the spermatogenesis-ralated genes. The characteristics of the selected genes were analyzed by various bioinformatics tools. The mRNA expression of Dkkl1 at different stages of testis development and different tissues in mouse were detected by RT-PCR. The protein localization of Dkkl1 in mouse testis was assessed by immunohistochemistry.Results By analyzing the gene chip signals of mice testis aged at 4, 9, 18, 35, 54 d and 6 months, Dkkl1 was identified with a differential expression in the developmental stages of testis. RT-PCR analysis showed the expression of Dkkl1 mRNA was firstly detected on 18d testis tissue sample and gradually upregulated during the testis developing to the adult stage. The Dkkl1 protein was predominantly located in spermatocytes and round spermatids in mouse testis.Conclusion The expression of Dkkl1 is gradually upregulated during the development of mouse testis and corresponds to the mouse spermatogenesis. It may play an critical role in male mammalian spermatogenesis.