CN114129708B - Invs蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用 - Google Patents
Invs蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用 Download PDFInfo
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- CN114129708B CN114129708B CN202111486020.0A CN202111486020A CN114129708B CN 114129708 B CN114129708 B CN 114129708B CN 202111486020 A CN202111486020 A CN 202111486020A CN 114129708 B CN114129708 B CN 114129708B
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Abstract
本发明涉及药物制备技术领域,特别是涉及INVS蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用。本发明提供的INVS蛋白可有效修复重金属诱导的睾丸损伤。
Description
技术领域
本发明涉及药物制备技术领域,特别是涉及INVS蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用。
背景技术
人体暴露在多种环境污染物(包括重金属等)后,以氯化镉为例,对雄性生殖功能会产生多种不利影响,会对精子发生过程造成多种损害。现有多项有关重金属诱导睾丸生精上皮损伤的研究,如【Xiao X,Mruk D D,Tang E I,et al.Environmental toxicantsperturb human Sertoli cell adhesive function via changes in F-actinorganization mediated by actin regulatory proteins[J].Human Reproduction,2014(6):1279-91.】,但目前并没有一种基于平面细胞极化作用相关蛋白的生精上皮损伤的修复药物。
发明内容
为了实现上述目的,本发明提供如下技术方案:
本发明提供了INVS蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用,所述INVS蛋白的氨基酸序列如SEQ ID NO.1所示。
优选的,所述INVS蛋白的编码基因的核苷酸序列如SEQ ID NO.2所示。
优选的,所述INVS蛋白的编码基因的扩增引物对如SEQ ID NO.3和SEQ ID NO.4所示。
优选的,所述重金属诱导的睾丸损伤包括睾丸内生精小管生精上皮损伤和/或睾丸细胞骨架蛋白结构损伤。
优选的,所述睾丸内生精小管生精上皮损伤包括睾丸内生精小管生精上皮结构性损伤。
优选的,所述重金属包括镉。
本发明还提供了一种防治睾丸损伤的药物,所述药物包括含INVS蛋白的编码基因的重组表达载体。
优选的,所述重组表达载体的基础载体包括pCI-neo。
优选的,所述INVS蛋白的编码基因位于基础载体的XhoI和NotI酶切位点之间。
优选的,所述药物的有效剂量为每个睾丸5~50μg所述重组表达载体。
有益效果:
INVS蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用。本发明通过试验得出:在睾丸内过表达INVS蛋白,对氯化镉染毒造成睾丸内生精小管生精上皮的结构完整性损害起到了明显的修复作用;氯化镉染毒后造成整个睾丸切面中90%以上的生精小管发生病变,而INVS蛋白过表达将这一病变发生率降低至30%~50%左右,修复作用明显。此外,INVS蛋白在睾丸内过表达,对氯化铬染毒造成睾丸组织的肌动蛋白细胞骨架聚合能力发挥了拯救的作用。INVS蛋白过表达后,与空载体对照组相比,氯化镉染毒造成的游离Actin聚合能力损伤得到了修复,说明INVS蛋白可通过维持生精上皮细胞骨架蛋白结构实现了对氯化铬染毒诱导的生精上皮损伤的修复。
附图说明
图1为INVS蛋白片段的PCR扩增电泳结果;
图2为构建的pCI-neo-INVS过表达载体双酶切后酶切产物电泳图;
图3为pCI-neo-INVS表达载体转染大鼠睾丸内对氯化铬染毒诱导睾丸损伤的抑制情况结果图;其中黑色比例尺长度为100μm;右图为左图方框区域的放大图;
图4为睾丸切片中损伤的生精小管数目占总生精小管数目百分比柱形图;
图5为INVS蛋白过表达后的组织总RNA反转录PCR鉴定结果;
图6为pCI-neo-INVS表达载体转染大鼠睾丸内对氯化铬染毒诱导的睾丸组织细胞骨架蛋白Actin聚合能力检测结果;A为阴性对照,B为阳性对照,C为pCI-neo,D为pCI-neo+Cd,E为pCI-neo-Invs+Cd。
具体实施方式
本发明提供了INVS蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用,所述INVS蛋白的氨基酸序列如SEQ ID NO.1所示:MNISENVLSTGSSLASQVHAAAVNGDKGALQRLIVGNSALKDKEDQFGRTPLMYCVLADRLDCADALLKAGADVNKTDHSRRTALHLAAQKGNYRFMKLLLTRRANWMQKDLEEMTPLHLSTRHRSPKCLALLLKFMAPGEVDTQDKNKQTALHWSAYYNNPEHAKLLIKHDSNIGIPDVEGKIPLHWAANHKDASAVHTVRCILDAAPTESLLNWQDYEGRTPLHFAVADGNLTVVDVLTSYESCNITSYDNLFRTPLHWAALLGHAQIVHLLLERNKSGTVPSDSQGATPLHYAAQSNFAETVKVFLTHPSVRDDSDLEGRTSFMWAAGKGSDDVLRTMLSLKSDIDINMADKYGGTALHAAALSGHVSTVKLLLDNDAQVDATDVMKHTPLFRACEMGHRDVIQTLIKGGARVDLVDQDGHSLLHWAALGGNADVCQILIENKINPNVQDYAGRTPLQCAAYGGYINCMAVLMENNADPNIQDKEGRTALHWSCNNGYLDAIKLLLDFAAFPNQMENNEERYTPLDYALLGERHEVIQFMLEHGALSIAAIQDIAAFKIQAVYKGYKVRKAFRDRKNLLMKHEQLRKDAAAKKREEENKRKEAEQKGQPDTDPPRPQVLPCPPSPQNEPSRQSAAPSKQPPASHTVQSPDPEQGRPAGQCPGRASHRDCSSDLQGTASRKPSESPREHCRGASAGVHPRSCEDGDSYRHQGTSSAEKCRGETSGEHQRCEQGPSRARQPVSTGSAGPAEKGEDSSPAITSASQRDRPRKPSKRQDGAPRSRGASQKRRTHQLRDRCSPAGSSRPGSAKAEVARADQSSVHHDTPRNKVTQDKLVGGVSSDVPLSTEELGSGCQKLYEDLCASPENNVAHGPRPGQSVNIHLLPVEQRLLIIQRERSRKELFRRKNKAAAVIQRAWRSYQLRKHLSRLLHLKQLGARDVLRCTQLCAALLLQVWRKELELKFPKSISVSRTSKSPSKGMSAAKSARHSVLRQIYGCSQEGKVHHPIRSPKVPPVLHLSSVNSLQSIHLDSSGRSKKFSYNLQPASQSKNKPKL。
在本发明中,所述INVS蛋白的编码基因的核苷酸序列优选如SEQ ID NO.2所示:ATGAACATATCAGAGAATGTGCTCTCTACGGGGTCCTCATTAGCATCTCAGGTTCATGCCGCTGCAGTTAATGGAGATAAAGGTGCCCTTCAGAGACTCATTGTTGGAAACTCTGCTCTTAAAGACAAAGAAGACCAATTTGGGAGAACACCACTTATGTATTGTGTGTTGGCAGACAGATTGGACTGTGCAGATGCCCTTCTAAAAGCAGGGGCAGATGTCAACAAAACCGACCATAGCCGGAGAACAGCCCTCCACCTTGCAGCCCAAAAGGGAAATTACCGCTTTATGAAACTCTTACTCACTCGCAGAGCAAACTGGATGCAGAAGGACCTAGAAGAGATGACGCCTCTGCACCTGAGCACTCGGCACAGGAGCCCCAAGTGTCTAGCGCTCCTGCTGAAGTTTATGGCGCCCGGGGAGGTGGATACACAGGACAAAAACAAGCAAACAGCTCTGCACTGGAGCGCCTACTACAACAATCCCGAGCATGCGAAGCTGCTCATCAAGCATGACTCCAACATCGGGATTCCTGACGTGGAGGGCAAGATCCCCCTCCACTGGGCAGCCAACCATAAAGACGCGAGTGCCGTGCACACAGTGAGATGCATCCTGGATGCCGCCCCAACAGAGTCTTTATTGAACTGGCAAGACTATGAGGGCCGCACACCTCTGCACTTCGCAGTTGCTGATGGAAACCTAACGGTGGTGGATGTCTTGACCTCCTATGAAAGCTGCAACATAACGTCTTATGACAACTTATTTCGAACCCCACTTCACTGGGCAGCCTTACTAGGCCATGCACAGATTGTCCATCTCCTTCTGGAAAGAAACAAGTCTGGAACCGTCCCTTCCGACAGCCAAGGGGCAACACCCTTGCACTATGCAGCTCAGAGTAATTTTGCTGAAACAGTTAAGGTGTTTTTAACGCATCCTTCAGTGAGAGATGATTCTGACTTGGAAGGAAGAACATCTTTCATGTGGGCAGCAGGAAAAGGCAGTGACGACGTGCTCAGAACTATGCTCAGTTTAAAATCGGACATCGACATCAACATGGCGGACAAATATGGAGGCACAGCTTTACATGCCGCTGCCCTTTCTGGCCACGTCAGCACCGTGAAGTTGTTATTGGACAATGATGCCCAAGTAGATGCTACTGACGTCATGAAACACACTCCACTGTTCCGAGCCTGCGAGATGGGACACAGAGACGTGATTCAGACGCTTATTAAAGGCGGAGCACGAGTCGACCTGGTTGACCAAGATGGACATTCACTTCTACACTGGGCAGCACTGGGAGGAAACGCTGACGTCTGCCAGATCCTGATAGAAAACAAGATCAACCCAAACGTGCAGGACTACGCGGGAAGAACCCCACTTCAGTGCGCTGCATATGGAGGGTACATCAACTGCATGGCTGTGCTCATGGAGAACAATGCAGACCCCAACATCCAAGACAAAGAGGGACGAACAGCTCTGCACTGGTCCTGTAACAACGGCTACCTCGATGCCATTAAACTACTGCTGGACTTCGCTGCTTTCCCTAACCAGATGGAGAACAATGAGGAGAGGTACACACCCCTTGACTATGCATTGCTTGGTGAGCGCCATGAGGTGATCCAGTTCATGCTGGAACACGGTGCCCTGTCCATCGCAGCTATTCAAGACATCGCTGCCTTCAAAATCCAAGCGGTCTACAAAGGATACAAGGTCAGAAAAGCCTTCCGAGACCGGAAGAACCTCCTCATGAAGCACGAACAGCTGAGAAAGGACGCTGCAGCTAAGAAACGGGAGGAGGAAAACAAGCGGAAGGAAGCTGAACAGAAAGGACAGCCGGACACAGATCCTCCCAGGCCCCAAGTCCTCCCCTGTCCACCCAGCCCCCAGAATGAGCCCAGTAGGCAGAGCGCAGCCCCTAGCAAACAGCCACCTGCTAGCCACACAGTCCAGAGCCCCGACCCAGAGCAGGGCAGGCCTGCAGGCCAATGTCCAGGCAGAGCCTCCCACAGGGATTGTTCCTCAGACCTTCAGGGAACAGCCTCCAGAAAGCCGAGTGAATCCCCCAGGGAGCACTGCAGAGGCGCCTCTGCCGGCGTGCACCCCAGATCCTGCGAGGATGGTGATAGCTACAGGCATCAGGGAACATCCTCTGCGGAGAAGTGCAGAGGTGAGACCAGTGGCGAACACCAGCGGTGTGAGCAGGGCCCAAGCAGAGCCAGGCAGCCCGTGTCCACTGGGTCAGCGGGGCCTGCCGAGAAAGGAGAGGACTCCAGCCCTGCCATTACAAGTGCTTCCCAGCGGGACCGCCCCCGGAAACCCAGCAAGAGACAGGACGGGGCGCCCAGGTCCAGAGGTGCGTCCCAGAAAAGACGCACCCATCAGCTCAGAGACAGGTGCTCCCCCGCTGGGTCCAGCCGGCCTGGCAGTGCTAAGGCGGAAGTTGCCCGCGCTGATCAGAGTTCTGTCCACCATGACACACCAAGAAACAAGGTGACCCAGGACAAGCTTGTAGGAGGGGTCTCCTCGGATGTGCCACTCAGCACAGAAGAGCTGGGGTCAGGATGCCAGAAGCTTTATGAGGACCTGTGTGCATCTCCGGAGAACAATGTGGCTCACGGCCCCCGACCTGGACAGAGTGTGAATATCCACCTTCTTCCCGTAGAACAGCGCCTGCTGATAATCCAGAGGGAACGGAGCAGGAAGGAGCTGTTTCGGAGAAAAAACAAGGCAGCGGCCGTCATCCAGCGAGCTTGGCGAAGCTACCAGCTCAGGAAGCACCTCTCTCGGCTTCTGCATTTGAAGCAGCTTGGAGCCAGAGATGTGCTCAGATGTACTCAACTGTGCGCAGCCCTGCTCCTCCAGGTTTGGAGGAAAGAACTGGAGCTCAAGTTCCCAAAGTCCATCTCAGTAAGCAGAACATCAAAGAGTCCATCCAAAGGCATGTCGGCCGCAAAGTCCGCCAGGCACTCAGTGCTCAGGCAGATCTACGGTTGTTCTCAGGAAGGGAAAGTACATCATCCCATCAGATCTCCCAAAGTCCCTCCTGTGCTTCATCTCAGTTCAGTGAACAGTTTGCAGTCTATACATCTTGACAGCAGTGGAAGATCAAAGAAGTTTTCTTACAATCTGCAACCAGCCAGTCAATCAAAAAACAAGCCAAAGCTTTGA。
在本发明中,所述INVS蛋白的编码基因的扩增引物对优选如SEQ ID NO.3:GGTCGAGATGAACATATCAGAGAATGT和SEQ ID NO.4所示:GCGGCCGCTCAAAGCTTTGGCTTGTTTT。在本发明中,扩增INVS蛋白编码基因的反应体系以25μL计,优选包括:预混液12.5μL(Thermofisher Cat.货号12359-010),上下游引物(50μM)各0.5μL,模板cDNA 0.5μL,和余量去离子水;扩增INVS蛋白编码基因的反应程序优选包括:95℃预变性2min;95℃变性10s,70℃退火10s,68℃延伸90s,30个循环;68℃延伸5min。
在本发明中,所述重金属优选包括镉;所述重金属诱导的睾丸损伤优选包括睾丸内生精小管生精上皮损伤和/或睾丸细胞骨架蛋白结构损伤;所述睾丸内生精小管生精上皮损伤优选包括睾丸内生精小管生精上皮结构性损伤。由本发明实施例可知:本发明腹腔注射氯化镉溶液,再过表达INVS蛋白,虽然生精小管也显示出了部分病变如官腔趋近闭合、成熟精子受困于上皮底部等病理变化,但其整体上功能性结构完整,生殖细胞分布正常,精子仍然可以有序的在生精上皮表面排布;INVS蛋白的过表达显著降低了氯化镉染毒诱导的包括精细胞提前脱离、生精上皮空洞等多种病变;其次,氯化镉染毒后造成整个睾丸切面中90%以上的生精小管发生病变,而INVS蛋白的过表达将这一病变发生率降低至30%~50%左右,修复作用明显;最后,氯化镉染毒可诱导睾丸组织中Actin聚合能力显著降低,说明氯化镉染毒影响了睾丸中细胞骨架蛋白的结构,破坏了睾丸生殖功能,而INVS蛋白过表达后,睾丸组织的Actin聚合能力得到了显著的恢复,说明INVS蛋白可有效修复氯化镉染毒诱导的睾丸细胞骨架蛋白结构损伤。可见,利用INVS蛋白制备的药物可以修复睾丸损伤,特别是可以修复氯化镉染毒诱导的睾丸生精上皮损伤,以及恢复生精上皮中的细胞骨架蛋白Actin聚合能力降低。
本发明还提供了一种防治睾丸损伤的药物,所述药物包括含INVS蛋白的编码基因的重组表达载体。在本发明中,所述重组表达载体包括核苷酸序列如SEQ ID NO.2所示的INVS蛋白的编码基因和基础载体;所述重组表达载体的基础载体优选包括pCI-neo;所述INVS蛋白的编码基因优选位于基础载体的XhoI和NotI酶切位点之间。本发明对所述重组表达载体的构建方法没有特殊要求,采用本领域技术人员所熟知的构建方法即可。
在本发明中,所述药物的有效剂量优选为每个睾丸5~50μg所述重组表达载体,进一步优选为每个睾丸10~30μg所述重组表达载体,更优选为每个睾丸15μg所述重组表达载体。本发明所述药物以上述重组表达载体为有效成分,利用上述重组表达载体使INVS蛋白过表达来实现氯化铬染毒诱导的睾丸损伤的修复。本发明对给药方式没有特殊限定,采用本领域技术人员所熟知的蛋白或编码基因的给药方式即可。
为了进一步说明本发明,下面结合实施例对本发明提供的INVS蛋白在制备修复重金属诱导的睾丸损伤的药物中的应用进行详细地描述,但不能将它们理解为对本发明保护范围的限定。
实施例1
INVS蛋白编码基因片段的克隆方法
采用SD大鼠睾丸cDNA,参考大鼠Invs编码基因序列NM_001107932.2设计INVS蛋白的克隆引物;
上游引物:GGTCGAGATGAACATATCAGAGAATGT(SEQ ID NO.3);
下游引物:GCGGCCGCTCAAAGCTTTGGCTTGTTTT(SEQ ID NO.4);
引物中包括限制性内切酶位点XhoI、NotI、启动密码子、终止密码子和保护性碱基,PCR扩增(反应体系:预混液12.5μL(Thermofisher Cat.货号12359-010),上下游引物(50μM)各0.5μL,模板cDNA 0.5μL,去离子水补足至25μL;反应程序:95℃预变性2min;95℃变性10s,70℃退火10s,68℃延伸90s,30个循环;68℃延伸5min)后得到INVS蛋白编码基因片段,电泳检测。其电泳结果如图1所示,图1为INVS蛋白编码基因的PCR扩增产物电泳结果图。由图1可知,PCR产物预测长度为3183bp,电泳结果与预测产物长度相符合。由此可知,扩增得到符合预测长度的PCR产物。
INVS蛋白编码基因片段的测序
回收扩增所得编码基因片段PCR产物,送GeneWiz公司测序,测序结果如SEQ IDNO.2所示;
上述测序结果显示与参考大鼠层粘蛋白α2编码基因序列NM_001107932.2中INVS蛋白的编码基因同源度为100%,说明成功克隆INVS蛋白编码基因片段。
INVS蛋白重组表达载体的构建
对克隆的INVS蛋白编码基因片段连接至真核表达载体pCI-neo(Promega公司),得到表达载体pCI-neo-Invs。对表达载体进行XhoI/NotI双酶切,酶切图谱如图2所示,图2为pCI-neo-Invs哺乳动物过表达载体的质粒双酶切产物电泳结果。由图2可知,插入片段长度约为3179bp,克隆得到正确的表达载体。
实施例2
研究大鼠睾丸内pCI-neo-Invs过表达对氯化镉染毒诱导的睾丸损伤的修复作用的方法
分组方法:雄性SD大鼠共18只,分为3组,每组6只。
实验方法为:氯化铬对照组6只、pCI-neo空质粒转染组6只、氯化铬染毒后转染pCI-neo-Invs过表达载体实验组6只。染毒方法为腹腔注射氯化镉一次,剂量为3mg/kg体重。染毒24小时后,将重组表达载体pCI-neo-Invs转染至SD大鼠睾丸内,每个睾丸注射15μg重组表达载体(每个睾丸总注射量70μl,其中含有质粒DNA15μg,in-vivojet PEI转染试剂1.8μl,溶解于5%无菌葡萄糖溶液中),睾丸注射共三次,每次间隔24小时。氯化镉注射56天后,处死大鼠。
处死后的大鼠取睾丸,进行固定和石蜡包埋、切片及HE染色,白光显微镜拍摄观察(结果见图3);对HE染色后的大鼠睾丸切片拍照后,除观察病变情况外,对各组石蜡切片中各个生精小管进行评估,计算出损伤的生精小管数目占总生精小管数目百分比(%),每只睾丸选取3个切面,每组共6只睾丸,结果见图4。
对不同处理组睾丸样本中取小块组织提取RNA并反转录cDNA,以INVS扩增引物进行反转录PCR(PCR扩增同实施例1),验证INVS蛋白在睾丸中的过表达,鉴定结果如图5所示。
由图3可知,氯化镉染毒四天后,与空白对照组相比,阳性对照组因氯化镉染毒引起生精上皮的广泛病变,生殖细胞及未成熟的精子脱离生精上皮,且生精小管中出现部分空洞;长方形框截取区域中可见部分未成熟的精子提前脱离生精上皮。以上结果表明氯化镉染毒后可诱导睾丸生精上皮发生广泛损伤,生精上皮功能严重受损。在过表达INVS蛋白之后再染毒氯化镉的实验组中,虽然生精小管也显示出了部分病变如管腔趋近闭合、精子细胞脱离(长方形框中指示)等病理变化,但其整体上功能性结构完整,生殖细胞分布正常,精子仍然可以有序的在生精上皮表面排布。可见,INVS蛋白的过表达显著降低了氯化镉诱导的包括精细胞提前脱离、生精上皮空洞等多种病变,说明睾丸内过表达INVS后可有效的修复氯化镉诱导的生精上皮损伤。
由图4可知,氯化镉染毒可诱发超过90%的睾丸生精小管发生病变,而在经过INVS蛋白过表达后氯化镉染毒的实验组中受损伤的生精小管比例降至约30%~50%。INVS蛋白在睾丸内的过表达显著修复了氯化镉染毒诱导的生精小管损伤。
由此可见,INVS蛋白的睾丸内过表达,对氯化镉染毒造成睾丸内生精小管生精上皮的结构完整性损害起到了明显的修复作用。氯化镉后造成整个睾丸切面中90%以上的生精小管发生病变,而INVS蛋白的过表达将这一病变发生率降低至30%~50%左右,修复作用明显。
由图5可知,pCI-neo-Invs表达载体转染后,INVS蛋白的表达量与空载体转染对照组相比显著增加。
实施例3
大鼠睾丸内pCI-neo-Invs过表达对氯化镉诱导的睾丸组织细胞骨架蛋白Actin聚合能力的恢复作用
分组与动物实验方法同实施例2。大鼠处死后,取部分新鲜睾丸组织,保持37℃温度下进行组织匀浆,采用G-Actin/F-actin In Vivo Assay Biochem Kit试剂盒(Cytoskeleton,Inc.美国),参考其试剂盒说明进行操作。其主要原理为在组织匀浆中加入荧光标记的游离G-actin单体和ATP等能量物质,在60分钟内进行37℃孵育,孵育的同时检测单体G-actin聚合后的荧光,进而评价样本的细胞骨架蛋白Actin聚合能力,实验结果见图6。
细胞骨架蛋白(cytoskeletonproteins)是真核细胞借以维持其基本形态的重要结构器,是调控生精上皮功能重要因素。其中肌动蛋白(Actin)以多聚体/单体的形式大量存在于生精上皮中,在精子发生、血睾屏障功能调控等生物学过程中发挥重要的直接作用。
由图6可知,氯化镉染毒(pCI-neo+Cd)可诱导睾丸组织中Actin聚合能力显著降低,说明氯化镉影响了睾丸中细胞骨架蛋白的结构,破坏了睾丸生殖功能。而Invs蛋白过表达后(pCI-neo-Invs+Cd),睾丸组织的Actin聚合能力得到了显著的恢复,说明INVS蛋白可有效修复氯化镉诱导的睾丸细胞骨架蛋白结构损伤。
综上所述,INVS蛋白可有效修复重金属诱导的睾丸损伤,对重金属染毒造成睾丸内生精小管生精上皮的结构完整性损害、生精小管发生病变和睾丸内生精小管生精上皮的细胞骨架蛋白损伤/破坏能起到明显的修复作用。
虽然本发明已以较佳的实施例公开如上,但其并非用以限定本发明,任何熟悉此技术的人,在不脱离本发明的精神和范围内,都可以做各种改动和修饰,因此本发明的保护范围应该以权利要求书所界定的为准。
序列表
<110> 温州医科大学附属第二医院(温州医科大学附属育英儿童医院)
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Claims (7)
1.INVS蛋白在制备修复由镉引起的睾丸损伤的药物中的应用,所述INVS蛋白的氨基酸序列如SEQ ID NO.1所示,所述睾丸损伤为睾丸内生精小管生精上皮损伤和/或睾丸细胞骨架蛋白结构损伤,所述睾丸内生精小管生精上皮损伤包括睾丸内生精小管生精上皮结构性损伤。
2.根据权利要求1所述的应用,其特征在于,所述INVS蛋白的编码基因的核苷酸序列如SEQ ID NO.2所示。
3.根据权利要求2所述的应用,其特征在于,所述INVS蛋白的编码基因的扩增引物对如SEQ ID NO.3和SEQ ID NO.4所示。
4.表达INVS蛋白的重组表达载体在制备修复由镉引起的睾丸损伤的药物中的应用,所述表达INVS蛋白的重组表达载体包括核苷酸序列如SEQ ID NO.2所示的编码基因和基础载体,所述睾丸损伤为睾丸内生精小管生精上皮损伤和/或睾丸细胞骨架蛋白结构损伤,所述睾丸内生精小管生精上皮损伤包括睾丸内生精小管生精上皮结构性损伤。
5.根据权利要求4所述的应用,其特征在于,所述基础载体包括pCI-neo载体。
6.根据权利要求5所述的应用,其特征在于,所述编码基因位于pCI-neo载体的XhoI和NotI酶切位点之间。
7.根据权利要求4所述的应用,其特征在于,所述INVS蛋白的编码基因的扩增引物对如SEQ ID NO.3和SEQ ID NO.4所示。
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CN111494612A (zh) * | 2020-05-22 | 2020-08-07 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | 层粘蛋白α2功能区在制备维持或修复血睾屏障功能的药物中的应用 |
CN111569048A (zh) * | 2020-05-22 | 2020-08-25 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | LamG5肽在制备修复睾丸中支持细胞损伤的药物中的应用 |
CN112516293A (zh) * | 2020-12-02 | 2021-03-19 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | 层粘蛋白α2功能区LamG3/4/5在制备预防避孕药诱导的睾丸损伤的药物中的应用 |
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2021
- 2021-12-07 CN CN202111486020.0A patent/CN114129708B/zh active Active
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CN111494612A (zh) * | 2020-05-22 | 2020-08-07 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | 层粘蛋白α2功能区在制备维持或修复血睾屏障功能的药物中的应用 |
CN111569048A (zh) * | 2020-05-22 | 2020-08-25 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | LamG5肽在制备修复睾丸中支持细胞损伤的药物中的应用 |
CN112516293A (zh) * | 2020-12-02 | 2021-03-19 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | 层粘蛋白α2功能区LamG3/4/5在制备预防避孕药诱导的睾丸损伤的药物中的应用 |
Non-Patent Citations (1)
Title |
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Inversin, the gene product mutated in nephronophthisis type II, functions as a molecular switch between Wnt signaling pathways;Simons M等;Nat Genet;20050424;第37卷(第5期);摘要,第4页第3段 * |
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