CN115896103A - 鹿茸由RBPMS介导的microRNA及其应用 - Google Patents
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Abstract
鹿茸由RBPMS介导的microRNA及其应用,它涉及一种小RNA(microRNA),本发明提供了来源于东北马鹿(Cervus elaphus)鹿茸茸皮并对细胞迁移和增殖起促进作用的因子,其命名为:microRNA PC‑3p‑40996,其序列为UGAACAGCAGUUGAACAUGGGU,具有高效下调RBPMS蛋白表达的作用,可促进细胞迁移和增殖。
Description
技术领域
本发明涉及一种小RNA(microRNA),调控细胞的迁移和增值。
背景技术
在哺乳动物中,只有鹿茸角是目前所知唯一的具有表形态再生能力的器官,即在失去后还能完全再生出来。在再生周期里,鹿茸从顶部生长点平均每天延伸1-2cm,又会在近百天的快速生长后最终自动停止,茸性皮肤会慢慢死亡脱落。鹿茸角再生机理很复杂,目前仍然是再生生物学领域的重要研究模型。
MicroRNA(miRNA)是一类内生的、长度为18-24个核苷酸、重要的基因表达的负调控因子,通过调节目标基因mRNA稳定性或翻译效率来表现其功能。其来源于长的具有发卡样二级结构的转录子,并被两种核酸内切酶Drosha和Dicer剪切,形成双链的miRNA。其中一条链形成成熟的miRNA,另一条链降解。成熟miRNA通过与靶标基因mRNA的3’非翻译区(Untranslated Regions,UTR)目标位点结合而对其进行调控。一个miRNA的选择性活性依赖于与这个同源mRNA互补的miRNA的种子序列(seed region)(图1所示)。因为miRNA 种子内的不完美碱基配对代表这个核心5-7核苷酸序列可以潜在地结合很多mRNA序列,一个miRNA可同时调控多个目标基因的mRNA。研究表明miRNA在很多细胞的增殖、分化、器官形态发生和肿瘤发生等生物学过程中起非常关键的调节作用。miRNA通过抑制目标基因起到癌基因或肿瘤抑制的作用,目前,越来越多的miRNA被证明在癌症发生和发展过程中发挥非常重要的作用,所以miRNA可以作为治疗癌症的潜在新靶标。
具有多重剪接的RNA结合蛋白(RNA Binding Protein With Multiple Splicing,RBPMS,又名Hermes)基因是一个编码蛋白的基因,位于人类染色体8p11-12。该基因编码的蛋白质是具有单个RNA识别基序(RRM)的保守RNA结合蛋白,长度80-100个氨基酸,由两个较短的保守序列以及一些高度保守的疏水残基组成。目前,关于RBPMS的功能研究较少,但RRM家族的蛋白质大多在mRNA预处理(剪接,加帽和多聚腺苷酸化),RNA稳定性,转运,定位和mRNA翻译调控方面具有重要作用。同时,也有少量研究表明,RBPMS可通过抑制某些癌基因(例如MYC和抗凋亡蛋白Bcl-2)或激活细胞周期抑制剂(包括p15INK4b,p21CIP1/WAF1 和p57KIP2)来阻滞细胞周期进程,从而导致细胞周期停滞或细胞凋亡。
发明内容
本发明确定了东北马鹿(Cervus elaphus)鹿茸茸皮来源的,通过靶向调控RBPMS促进细胞增殖,迁移的正调控因子,并确定这种因子的名称、序列。本发明从马鹿鹿茸茸皮组织的microRNA数据库中筛选得到的microRNA PC-3p-40996(以下简称PC-40996),是一种在鹿茸茸皮中特异性表达的miRNA,长度22nt。序列如SEQ ID NO:1所示(UGAACAGCAGUUGAACAUGGGU)。
本发明经过293T细胞的Western Blotting、双荧光素酶报告实验和MCF-7细胞的Wound healing assays、CCK8细胞增殖检测等实验证明了PC-40996能够直接靶向调控RBPMS的表达 (图2、3所示),并促进细胞迁移和增殖(图4、5所示)。
本发明包含以下有益效果:
作为基因表达的负调控因子,microRNA在细胞生长、器官发育、个体生长及各种疾病的进程中都起到非常重要的作用。从快速生长的鹿茸顶端茸皮组织中分离出来的microRNA对鹿茸的再生生长会起非常重要的调控作用。
因此,本发明从快速生长期的新生马鹿鹿茸顶端茸皮组织microRNA测序结果中得到一个 miRNA PC-40996,其转录前体长约95nt,可形成发卡结构,成熟miRNA全长22nt,在miRBase 数据库(Release 22.1)中无同源序列。BLAST结果显示,无论是成熟miRNA全长还是其seed 序列,在人、黑猩猩、猕猴、小鼠、大鼠、豚鼠、鼩鼱、狗、猫、马、牛等模式物种基因组中均无同源序列。
通过TargetScan预测鹿茸茸皮发育的关键性因子RBPMS是PC-40996的靶基因之一,通过 293T和MCF-7细胞中进行的Western Blotting、双荧光素酶报告实验、Woundhealing assays(细胞划痕实验)和CCK8细胞增殖检测等实验,确定了PC-40996对RBPMS具有直接靶向作用(实验结果如图2、3所示),并能促进MCF-7细胞的迁移和增殖(实验结果如图4、5所示)。
本发明筛选的基因序列如下:
名称:microRNA PC-3p-40996
序列:UGAACAGCAGUUGAACAUGGGU。
附图说明
图1为多种模式生物RBPMS mRNA 3’UTR区具有与潜在PC-40996seed序列(小写序列) 互补结合的保守位点(大写加下划线序列)。
图2为将野生型重组表达载体PSI-CHECK2-RBPMS 3’UTR-WT和突变型重组表达载体PSI-CHECK2-RBPMS 3’UTR-MUT与miRNA PC-40996mimics或NC共转染入293T细胞中所得到的双荧光素酶实验结果。Firefly Luciferase作为内参。如图所示,与NC+RBPMS-WT 组相比,40996+RBPMS-WT组(WT-RBPMS)的相对Renilla荧光素酶活性显著性下降;与 40996+RBPMS-WT组相比,40996+RBPMS-MUT组(MUT-RBPMS)的相对Renilla荧光素酶活性显著性上升。这正反回复的变化趋势充分说明了miRNA PC-40996与RBPMS之间存在直接靶向调控关系。
图3为miRNA PC-40996mimics下调MCF-7细胞内源RBPMS蛋白水平。将miRNA PC-40996mimics与NC分别转染MCF-7细胞,36小时后收蛋白并进行western检测,内参为GAPDH。如图所示,与NC组相比,实验组的RBPMS表达量显著性降低。MCF-7细胞内源实验进一步验证了293T细胞外源Western blot和双荧光素酶的实验结果。
图4为Wound healing assays检测转染miRNA PC-40996mimics对MCF-7细胞迁移能力的影响,NC为阴性对照组。如图所示,与NC组相比,实验组中细胞迁移能力得到显著提升。实验独立重复三次,p<0.05具有显著性差异(*,p<0.05;**,p<0.01;***,p<0.001)。
图5为CCK8细胞增殖实验检测miRNA PC-40996mimics对MCF-7细胞增殖能力的影响, NC为阴性对照组。如图所示,与NC组相比,实验组中细胞增殖能力得到显著提升。实验独立重复三次,p<0.05具有显著性差异(*,p<0.05;**,p<0.01;***,p<0.001)。
具体实施方式
具体实施方式一:本实施方式的鹿茸由RBPMS介导的microRNA,它命名为:microRNA PC-3p-40996,其序列为UGAACAGCAGUUGAACAUGGGU(如Seq ID No:1所示)。
具体实施方式二:本实施方式的鹿茸由RBPMS介导的microRNA的应用,抑制具有多重剪接的RNA结合蛋白(RBPMS)的表达。
具体实施方式三:本实施方式的鹿茸由RBPMS介导的microRNA的应用,它具有通过抑制RBPMS的表达促进细胞迁移和增值的生物学功能。
本发明内容不仅限于上述各实施方式的内容,其中一个或几个具体实施方式的组合同样也可以实现发明的目的。
通过以下实施例验证本发明的有益效果:
以下的实施例便于更好地理解本发明,但并不限定本发明。下述实施例中的实验方法,如无特殊说明,均为常规方法。下述实施例中所用的试验材料,如无特殊说明,均为自常规生化试剂公司购买得到的。下述实施例中的%,如无特殊说明,均为质量百分含量。以下实施例中的定量试验,均设置三次重复实验,结果取平均值。
实施例1、鹿茸软骨miRNA PC-40996的获取过程
1)材料获取:实验所用材料为处于快速增长期约70天的东北马鹿鹿茸茸皮组织。锯茸后立即用消毒的剪刀将鹿茸顶端组织切成厚度小于0.5cm的薄片,立即放入装有防止RNA降解的保护液(RNA later)中,置于低温保存箱中并带回实验室保存。
2)mRNA的提取:将实验室保存鹿茸的茸皮组织分离后称取30mg,在超净工作台中快速切碎置于无菌1.5mL试管中,利用QIAGEN公司(德国)试剂盒DNeasy Blood&Tissue Kit(Cat.No.69504)提取鹿茸茸皮中的总RNA,并将提取的总RNA最终溶解于RNAse-free的水中,提取的总RNA经过分光光度检测均具有较高的质量(OD260 nm/OD280nm: 1.74-1.83)。
3)鹿茸茸皮small RNA高通量测序:将提取的总RNA递交到美国联川公司(杭州)通过Illumina miRNA Solexa测序平台进行鹿茸茸皮组织small RNAs文库高通量测序后,用ACGT101-miR v4.2(LC Sciences)软件进行数据处理。
4)鹿茸茸皮的新microRNA(miRNA),miRNA PC-40996的获取:对鹿茸茸皮组织的small RNA文库Solexa深度测序后获得的序列原始数据进行综合分析,得到一种新microRNA,miRNA PC-40996,序列可以比对到马鹿(Cervus elaphus)基因组的6号和7号染色体上。
5)靶基因预测:通过TargetScan预测miRNA PC-40996的靶基因之一为具有多重剪接的 RNA结合蛋白(RBPMS)基因。
实施例2、miRNA PC-40996在细胞水平上能够下调具有多重剪接的RNA结合蛋白RBPMS的表达
1)miRNAPC-40996合成:将miRNA PC-40996序列递交到苏州泓迅生物公司(中国)合成mimics和相应的Negative Control(NC)。
2)构建PSI-CHECK2-RBPMS 3’UTR野生型(WT)和突变型(MUT)载体:序列比对分析得知多种模式生物RBPMS mRNA 3’UTR区具有潜在的与miRNAPC-40996seed序列(小写序列)互补结合保守位点(大写加下划线序列)(图1所示)。本实施例根据人、黑猩猩、猕猴、小鼠、大鼠、豚鼠、鼩鼱、狗、猫、马、牛等物种中保守的RBPMS的3’UTR区序列合成了71bp的片段(Invtrogene公司,上海),其中包括miRNA PC-40996种子序列的互补序列,将合成片段插入到PSI-CHECK2载体Renilla luciferase报告基因的3’UTR区,构建野生型载体PSI-CHECK2-RBPMS 3’UTR-WT。插入片段(如Seq ID NO:2所示)序列如下: TCGAGTGGGTATTAATGCAATCTTCAGTGGTGGCTACTGTTCTCTAGCTGTTCTACAAAA CTGGAGCATGC,其中下划线部分为与MIRNA PC-40996seed序列互补结合的保守位点。在此基础上,将GCTGTTC序列突变为CACTGCG,构建PSI-CHECK2-RBPMS 3’UTR的突变型(MUT)载体,插入片段(如Seq ID NO:3所示)序列如下:TCGAGTGGGTATTAATGCAATCTTCAGTGGTGGCTACTGTTCTCTACACTGCGTACAAAA CTGGAGCATGC。
PSI-CHECK2双荧光素酶报告载体是Promega公司(美国)设计的用于RNAInterference 实验的特异性载体,具有Firefly luciferase和Renilla luciferase两个荧光素酶报告基因。其中, Firefly luciferase作为内参基因,Renilla luciferase报告基因用来衡量miRNA的功能。当miRNA PC-40996mimics和PSI-CHECK2-RBPMS 3’UTR-WT载体共转染293T细胞时,如果Renilla luciferase的蛋白表达量相对下调,说明miRNA PC-40996对RBPMS的表达有靶向调控作用。
3)细胞培养:293T细胞和MCF-7细胞均购自吉满生物科技(上海)有限公司(中国),培养基为DMEM(10569010,Gibco,美国),均添加10%的胎牛血清(110099141,Gibco,美国)。置于37℃,5%二氧化碳条件下培养。
4)转染:细胞以6×105个/孔接种于6孔培养板上,培养24小时,细胞汇合度达60%~70%,以Lipo8000TM(C0533,碧云天,中国)为介导,用合成的miRNA PC-40996mimics、NC、PSI-CHECK2-RBPMS 3’UTR-WT或PSI-CHECK2-RBPMS 3’UTR-MUT载体转染293T或 MCF-7细胞,转染的重组质粒量为1.5ug/孔。
5)双荧光素酶报告载体实验检测:Dual Luciferase Reporter Assays Kit(DL101-01 Vazyme,中国)用于本检测中。在细胞培养36h后,吸弃培养液,PBS洗涤两次,加入适量的Cell Lysis Buffer,室温静置或振摇裂解5min,吹打并吸取细胞裂解产物至1.5ml离心管中,12000g常温离心2min,取上清液用于后续检测。将100ul平衡至室温的Luciferase Substrate加入检测管或酶标仪中,小心吸取20ul细胞裂解上清至检测管或酶标仪中,迅速均匀后立即放于酶标仪中检测Firefly Luciferase报告基因活性。在以上反应液中加入100ul新鲜配制的Renilla底物工作液,迅速均匀后立即放于酶标仪中检测Renilla Luciferase报告基因活性。检测结果表明miRNA PC-40996直接靶向RBPMS并有效下调其表达(图2所示)。
6)Western检测:细胞培养36小时后收细胞,对蛋白进行变性处理,然后利用4%~12%的PAGE预制胶(NP0335BOX,Invitrogen,美国)电泳。转硝酸纤维膜后,用5%脱脂奶粉的TBST混合液封闭1小时,然后硝酸纤维膜分别在Firefly Luciferase一抗(Sc74548,Santa Cruz Biotechnology,美国)、Renilla luciferase(ab185926,abcam,美国)或RBPMS一抗 (15187-1-AP,Proteintech,中国)中孵育1小时,荧光标记的二抗(Lico Bioscience,美国) 中孵育1小时,以β-actin(Sc47778,Santa Cruz Biotechnology,美国)或GAPDH(Sc47724,Santa Cruz Biotechnology,美国)为内参,Odyssey红外激光成像系统扫膜。检测结果表明 miRNA PC-40996有效下调RBPMS的表达(图3所示)。
实施例3、miRNA PC-40996在细胞水平上通过抑制多重剪接的RNA结合蛋白(RBPMS) 促进MCF-7细胞迁移和增殖的功能
1)细胞培养与转染:MCF-7细胞购自吉满生物科技(上海)有限公司,培养基为DMEM(Gibco,美国),培养方法同实施例2中3)。细胞转染同实施例2中的4)。
2)Wound healing assays检测:将MCF-7细胞接种到6孔板中,每孔5×105个细胞。等细胞汇合度达到95%左右,用200μl移液器吸头在细胞单层上制作划痕,并在0h、48h的时候拍摄照片以估算迁移细胞所占的面积。细胞划痕实验结果表明,相比于对照组(NC),实验组的细胞迁移能力得到了显著的提升(图4所示)。
3)CCK8细胞增殖检测:Cell Counting Kit-8(B34304,bimake,美国)试剂被用于本次实验,将100ul的MCF-7细胞培养液以每孔3×103个细胞的密度接种在96孔板中,培养4-24h 后,在指定的时间点(0h,24h,48h,72h,96h),用10ul CCK-8溶液处理细胞,并在黑暗中孵育2小时左右,使细胞液颜色变为橙色。最后用酶标仪在450nm的波长处读取光吸收值。CCK8细胞增殖实验结果表明,相比于对照组(NC),实验组的细胞增殖能力得到了显著的提升(图5所示)。
序列表
<110> 东北林业大学
<120> 鹿茸由RBPMS介导的microRNA及其应用
<160> 3
<170> SIPOSequenceListing 1.0
<210> 1
<211> 22
<212> RNA
<213> 东北马鹿(Cervus elaphus)
<400> 1
ugaacagcag uugaacaugg gu 22
<210> 2
<211> 71
<212> DNA
<213> 人工序列(“人工序列”)
<400> 2
tcgagtgggt attaatgcaa tcttcagtgg tggctactgt tctctagctg ttctacaaaa 60
ctggagcatg c 71
<210> 3
<211> 71
<212> DNA
<213> 人工序列(“人工序列”)
<400> 3
tcgagtgggt attaatgcaa tcttcagtgg tggctactgt tctctacact gcgtacaaaa 60
ctggagcatg c 71
Claims (3)
1.鹿茸由RBPMS介导的microRNA,其特征在于它命名为:microRNA PC-3p-40996,其序列为UGAACAGCAGUUGAACAUGGGU。
2.鹿茸由RBPMS介导的microRNA应用,其特征在于它促进细胞迁移和增殖。
3.根据权利要求1所述的鹿茸由RBPMS介导的microRNA及其应用,其特征在于通过抑制具有多重剪接的RNA结合蛋白(RBPMS)的表达介导促进细胞迁移和增殖生物学功能的完成。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103739698A (zh) * | 2014-01-09 | 2014-04-23 | 赵雨 | 梅花鹿鹿茸胸腺素β10重组蛋白及其制备方法和用途 |
CN106244593A (zh) * | 2016-08-31 | 2016-12-21 | 东北林业大学 | 一种调节鹿茸茸皮快速生长的microRNA及其应用 |
CN106350519A (zh) * | 2016-08-24 | 2017-01-25 | 东北林业大学 | 一种调节鹿茸软骨快速生长的microRNA及其应用 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103739698A (zh) * | 2014-01-09 | 2014-04-23 | 赵雨 | 梅花鹿鹿茸胸腺素β10重组蛋白及其制备方法和用途 |
CN106350519A (zh) * | 2016-08-24 | 2017-01-25 | 东北林业大学 | 一种调节鹿茸软骨快速生长的microRNA及其应用 |
CN106244593A (zh) * | 2016-08-31 | 2016-12-21 | 东北林业大学 | 一种调节鹿茸茸皮快速生长的microRNA及其应用 |
Non-Patent Citations (1)
Title |
---|
YANXIA CHEN等: "Deep sequencing identifies conserved and novel microRNAs from antlers cartilage of Chinese red deer (Cervus elaphus)", GENES GENOM, vol. 37, 31 December 2015 (2015-12-31), pages 419 - 427, XP035966785, DOI: 10.1007/s13258-015-0270-9 * |
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