CN111751532B - Piezo1蛋白作为食管癌标志物的应用 - Google Patents

Piezo1蛋白作为食管癌标志物的应用 Download PDF

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CN111751532B
CN111751532B CN202010697361.1A CN202010697361A CN111751532B CN 111751532 B CN111751532 B CN 111751532B CN 202010697361 A CN202010697361 A CN 202010697361A CN 111751532 B CN111751532 B CN 111751532B
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张丽果
高璐
陈慧平
何美霞
代丽萍
汲振余
张建营
刘静静
张灿
吉云
完迪迪
孙旭
杨小静
裘一兵
刘晓洁
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Zhengzhou Dexin Biotechnology Co.,Ltd.
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Abstract

本发明提供了PIEZO1蛋白作为食管癌标志物的应用,属于食管癌检测和治疗技术领域,所述PIEZO1蛋白在食管癌组织中的表达量显著高于癌旁组织;通过检测PIEZO1蛋白的表达量能够辅助检测食管癌;通过降低所述PIEZO1蛋白的表达量能够治疗食管癌,降低所述PIEZO1蛋白的表达量能够抑制体外食管癌细胞的增殖、迁移和侵袭,并且能够抑制体内肿瘤的生长;根据实施例的记载,降低PIEZO1蛋白的表达量后,体内肿瘤的体积和重量显著下调。

Description

PIEZO1蛋白作为食管癌标志物的应用
技术领域
本发明属于食管癌检测和治疗技术领域,尤其涉及PIEZO1蛋白作为食管癌标志物的应用。
背景技术
食管癌的恶性程度在癌症中位列第八,是造成全世界癌症死亡的第六大主要原因。每年都有48万多的新确诊患者和约40万人的死亡。食管癌根据组织学类型可以分为两种:食管鳞状细胞癌、食管腺癌。其中的80%都为食管鳞状细胞癌。食管鳞状细胞癌的诱发因素主要有烟草,酒精,热饮以及不良饮食。到目前为止,食管癌的发病率还在持续的上升,对人类的威胁逐渐增大。80%的患者在确诊时处于晚期,并且大多数患者已不能进行手术治疗,因为很大一部分肿瘤无法切除或在确诊前已经转移。
食管癌是一个多步骤的过程,涉及一系列的遗传和表观遗传的改变。对食管癌的研究目前已经报道很多,通过激活EMT途径,PI3K途径和P53信号通路等都可以影响食管癌的增殖,侵袭和迁移,但目前食管癌的预后仍然较差,5年内的总体存活率低至20%;所以亟待寻求对治疗食管癌新的靶点和策略。
发明内容
有鉴于此,本发明的目的在于提供PIEZO1蛋白在制备检测食管癌的试剂、治疗食管癌的药物中的应用。
为了实现上述发明目的,本发明提供了以下技术方案:
本发明提供了PIEZO1蛋白作为食管癌标志物的应用。
优选的,所述PIEZO1蛋白在食管癌组织中的表达量显著高于癌旁组织。
本发明提供了一种食管癌检测试剂盒,包括检测PIEZO1蛋白的试剂。
优选的,检测PIEZO1蛋白的试剂包括一抗和二抗;所述一抗为Piezo1兔源多克隆抗体;所述二抗为HRP-山羊抗兔。
本发明提供了PIEZO1蛋白表达的抑制剂在制备治疗食管癌药物中的应用。
优选的,所述抑制剂包括PIEZO1蛋白的干扰RNA。
优选的,所述PIEZO1蛋白的干扰RNA的核苷酸序列如SEQ ID No.3所示。
优选的,所述抑制剂还包括Piezo1抑制慢病毒,所述Piezo1抑制慢病毒中重组有PIEZO1蛋白的干扰RNA。
本发明还提供了PIEZO1蛋白表达的抑制剂在制备抑制食管癌细胞的增殖、迁移和侵袭的药物中的应用。
本发明还提供了PIEZO1蛋白表达的抑制剂在制备抑制体内肿瘤的生长的药物中的应用。
本发明的有益效果:本发明提供了PIEZO1蛋白作为食管癌标志物的应用,所述PIEZO1蛋白在食管癌组织中的表达量显著高于癌旁组织;通过检测PIEZO1蛋白的表达量能够辅助检测食管癌;通过降低所述PIEZO1蛋白的表达量能够治疗食管癌,降低所述PIEZO1蛋白的表达量能够抑制体外食管癌细胞的增殖、迁移和侵袭,并且能够抑制体内肿瘤的生长;根据实施例的记载,降低PIEZO1蛋白的表达量后,小鼠体内肿瘤的体积和重量显著下调。
附图说明
图1为癌组织和癌旁组织中Piezo1蛋白的免疫组化检测结果;
图2为TCGA数据库验证PIEZO1蛋白在癌组织和癌旁组织中表达量的比较;
图3为PIEZO1蛋白在5种食管癌细胞系表达情况;
图4为PIEZO1蛋白在EC109、EC9706细胞中被敲低表达后的结果,其中A为在EC109细胞中,在激光共聚焦显微镜下拍的转染带有绿色标签的sh-Piezo1的荧光照片,B为qRT-PCR检测的在EC109细胞株中敲低Piezo1的效率,C为在EC9706细胞中,在激光共聚焦显微镜下拍的转染带有绿色标签的sh-Piezo1的荧光照片,D为qRT-PCR检测的在EC9706细胞株中敲低Piezo1的效率;
图5为CK-8法检测敲低PIEZO1蛋白对食管癌细胞增殖的影响;
图6为划痕实验检测敲低PIEZO1蛋白对食管癌细胞迁移能力的影响,其中A为在EC109细胞中,分别在0h、24h和48h拍的划痕情况,B为图A的统计结果;
图7为Transwell法检测敲低PIEZO1对食管癌细胞侵袭的影响;
图8为qRT-PCR与Westren Blot法检测P53信号通路的影响,其中A为qRT-PCR,B为WestrenBlot法检测;
图9为沉默PIEZO1蛋白抑制体内肿瘤生长结果,其中A为肿瘤照片,B为肿瘤质量,C为肿瘤体积;
图10为Piezo1抑制慢病毒的结构示意图。
具体实施方式
本发明提供了PIEZO1蛋白作为食管癌标志物的应用。在本发明中,所述PIEZO1蛋白在食管癌组织中的表达量显著高于癌旁组织;所述PIEZO1蛋白的氨基酸序列如SEQ IDNO.1所示,编码所述PIEZO1蛋白的核苷酸的序列如SEQ ID NO.2所示。本发明通过公共数据库及组织芯片免疫组化等手段确认PIEZO1蛋白在食管癌癌症组织中的表达量显著高于癌旁组织,PIEZO1蛋白能够作为食管癌标志物应用。
本发明提供了一种食管癌检测试剂盒,包括检测PIEZO1蛋白的试剂。本发明对所述检测PIEZO1蛋白的实际没有特殊限定,能够准确检测PIEZO1蛋白的表达量即可,在本发明中,检测PIEZO1蛋白的试剂优选的包括一抗和二抗;所述一抗为Piezo1兔源多克隆抗体;所述二抗为HRP-山羊抗兔;在本发明中,所述Piezo1兔源多克隆抗体优选的购自英国Abcam公司;所述HRP-山羊抗兔优选的购自优宁维生物科技股份有限公司。
本发明提供了PIEZO1蛋白表达的抑制剂在制备治疗食管癌药物中的应用。在本发明中,通过降低所述PIEZO1蛋白的表达量实现食管癌的治疗。在本发明中,所述抑制剂优选的包括PIEZO1蛋白的干扰RNA。在本发明中,所述PIEZO1蛋白的干扰RNA的核苷酸序列优选如SEQ ID NO.3所示,具体如下:gcctcgtggtctacaagat。在本发明中,所述抑制剂优选的还包括Piezo1抑制慢病毒,所述Piezo1抑制慢病毒中优选的重组有PIEZO1蛋白的干扰RNA;在本发明中,所述Piezo1抑制慢病毒包括初始慢病毒载体,所述初始慢病毒载体优选为pLKD-CMV-G&PR-U6;更优选的,所述PIEZO1蛋白的干扰RNA重组于所述初始慢病毒载体的AgeI和EcoRI酶切位点之间。在本发明中,所述PIEZO1蛋白的干扰RNA或Piezo1抑制慢病毒转入细胞后,能够降低PIEZO1蛋白的表达量,实现食管癌的治疗。
本发明还提供了PIEZO1蛋白表达的抑制剂在制备抑制食管癌细胞的增殖、迁移和侵袭能力的药物中的应用。本发明对所述PIEZO1蛋白表达的抑制剂没有特殊限定,能够抑制所述PIEZO1蛋白的表达即可;本发明将所述PIEZO1蛋白表达的抑制剂导入食管癌细胞中,通过降低所述食管癌细胞中PIEZO1蛋白的表达量,抑制食管癌细胞的增殖、迁移和侵袭,从而实现食管癌的治疗。
本发明还提供了PIEZO1蛋白表达的抑制剂在制备抑制体内肿瘤的生长的药物中的应用。本发明采用动物体内荷瘤试验进行检测,结果表明,降低PIEZO1蛋白的表达量,能够显著抑制体内肿瘤的生长。
下面结合实施例对本发明提供的技术方案进行详细的说明,但是不能把它们理解为对本发明保护范围的限定。
实施例1
下载公共数据库Xena中食管癌中表达PIEZO1的RNA-Sep数据(http://xena.ucsc.edu/,04/6/2019)。样本数据包含162个癌症样本和11个正常样本。通过数据归一化处理和绘制散点图,得到PIEZO1在TCGA数据库中食管癌表达情况的散点图,如图1所示,说明PIEZO1在食管癌中高表达。
购买食管癌组织芯片阵列,49例癌症样本和25例正常样本组织。对组织芯片进行Piezo1蛋白免疫组化分析(Piezo1免疫组化由上海芯超生物科技有限公司制作合成),其中根据样本得分分为4种表达水平:阴性(-:得分为0);弱(+:得分为0.5);强(++:得分为1);阳性(+++:得分为2)。采用SPSS16.0软件,运用统计学卡方检验法,发现PIEZO1蛋白在食管癌中高表达。结果如图2所示,PIEZO1蛋白在癌旁阴性(-)表达率为28%;弱(+)表达率为48%;强(++)表达率为24%;阳性表达率为0%,而PIEZO1蛋白在癌组织的阴性(-)表达率为8.16%;弱(+)表达率为12.24%;强(++)表达率为53.06%;阳性表达率为26.53%,证明PIEZO1在食管癌组织中高表达。可见PIEZO1蛋白在食管癌中高表达,能够作为食管癌标志物应用。
表1免疫组化统计结果
Figure BDA0002591683410000051
实施例2
Piezo1蛋白干扰RNA以及Piezo1抑制慢病毒的制备
(1)干扰靶点设计和引物合成:根据shRNA设计的一般原则,设计1个siRNA靶点。
Piezo1慢病毒合成序列为GCCTCGTGGTCTACAAGAT(SEQ ID NO.3)。
NC慢病毒合成序列为TTCTCCGAACGTGTCACGT(SEQ ID NO.4)。
慢病毒的包装由上海和元生物技术股份有限公司完成。
Piezo1基因敲低细胞株构建
RT-qPCR验证5种食管癌细胞(EC109、EC9706、TE-1、KYSE30、KYSE510)发现PIEZO1蛋白在EC109、EC9706细胞中表达相对较高(图3),对这两种细胞抑制Piezo1蛋白的表达。采用前期构建的Piezo1抑制慢病毒,对两种细胞进行转染,并制备稳定的蛋白表达抑制细胞株。
转染的具体步骤如下:
(1)收取生长状态良好且处于对数生长期的细胞,胰酶消化,离心,按105个/mL接种于24孔板中,放培养箱培养,等待细胞贴壁进行病毒感染;
(2)从-80℃的冰箱中取出Piezo1抑制慢病毒和空载慢病毒,放置冰上融化。吸弃培养基,加入Mol值为20的病毒液和2.5μL的polybrene,补加无血清的培养基至500μL,培养箱培养;
(3)感染病毒8~12h,更换成带有血清的完全培养基,每隔24h,需换液一次;
(4)72~96h,在共聚焦显微镜下观察荧光强度,并拍照记录;
(5)96h后,向转染的细胞中加入筛选的最佳浓度的嘌呤霉素培养基500μL,筛选7~14天;
(6)在筛选过程中,24h更换新鲜培养基,以清除死去的细胞,并每天观察细胞的生长状态。
采用PCR电泳跑胶在基因层面验证PIEZO1蛋白在两种细胞中抑制表达的效率,具体步骤如下:
将EC109细胞和EC9706提取的RNA反转录成cDNA
反应体系如表4所示。
表4RNA反转录成cDNA的体系
Figure BDA0002591683410000061
PCR仪中反应:42℃,60min;70℃,5min;4℃,5min。
扩增体系如表5所示。
表5PCR扩增体系
Figure BDA0002591683410000062
Figure BDA0002591683410000071
PCR仪中反应:95℃,5min;95℃,30s;60℃,30s;72℃,30s,共40个循环72℃,5min;4℃,1h。
跑胶:配制1%琼脂糖凝胶,凝固后,拔出梳子,加入20μL cDNA样本,设置电流120V,时间30min。照胶并拍照。
PCR引物序列为:
PIEZO1-S:CTCCCTGTTACGCTTCAATGCT(SEQ ID NO.5)
PIEZO1-A:TGTAGGCATATCTGAAAGGCAAGG(SEQ ID NO.6)
GAPDH-S:CCTCGTCCCGTAGACAAAATG(SEQ ID NO.7)
GAPDH-A:TGAGGTCAATGAAGGGGTCGT(SEQ ID NO.8)
结果如图4所示,确定PIEZO1蛋白在EC109和EC9706细胞敲低成功。
Piezo1蛋白抑制对细胞功能的影响
PIEZO1蛋白的敲低可显著抑制食管癌细胞的增殖能力
通过CCK-8法结果显示:敲低PIEZO1蛋白的EC109细胞在96h时,其增殖速度显著下降(P<0.001),而敲低PIEZO1蛋白的EC9706细胞则在培养24h时,增长速度显著下降,并保持到72h(P<0.001)。两组结果都具有统计学意义,并差异显著(图5)。表明敲低PIEZO1蛋白可显著抑制食管癌细胞的增殖能力。
PIEZO1蛋白的敲低可显著抑制食管癌的迁移能力
划痕实验检测敲低PIEZO1蛋白的EC109细胞的迁移能力
(1)首先,取出6孔板,用marker笔在板背部笔直的标出一个“井”字,以便拍照时记录相同的视野;
(2)取对数生长期且生长状态良好的实验组细胞和对照组细胞(实验组细胞转染Piezo1慢病毒干扰RNA序列的细胞,对照组是转染了NC慢病毒RNA序列的细胞),用PBS清洗,胰酶消化,离心,得到细胞沉淀,用1mL完全培养基重悬,细胞计数板计数,计数后调整细胞密度为106个/mL,向6孔板中加入2mL的细胞悬液,每组设置3个复孔,培养箱中培养;
(3)24h后,取出细胞,显微镜下观察细胞状态,细胞生长状况良好,即可用PBS清洗,进行后续实验;
(4)用200μL黄枪头垂直板中,均匀笔直的划出一条划痕,用PBS清洗多次,直至清除掉脱落的细胞;
(5)在显微镜下观察,并找到合适的视野记录拍照;
(6)记录后,加入2mL无血清的1640培养基,继续培养;
(7)在48h后,用PBS清洗漂浮的死细胞,切忌不要碰触细胞,在显微镜下找到对应的拍照视野进行重复拍照,保存;
(8)此实验重复3次,分析数据,使用Image J绘制柱形图。
实验结果显示,在0h进行拍照记录初始划痕状态和位置,并在24h和48h拍照记录相同位置(图6)。发现随着时间变化,实验组细胞划痕间距愈合显著变慢(P<0.001)。具有统计学差异。实验结果表明,敲低PIEZO1蛋白可显著抑制食管癌的迁移能力。
PIEZO1蛋白的敲低可显著抑制食管癌的侵袭
Transwell基质胶侵袭法步骤如下:
(1)首先将6孔板,枪头预冷。将Matrigel胶从-20℃冰箱中取出,置于冰上,放在4℃的冰箱中过夜融化;
(2)在超净工作台用预冷的枪头吸取200μL PBS到小室,将其润湿。放置30min后,吸出PBS;
(3)用预冷枪头吸取200μL配制好的Matregel胶(1640培养基:Matrigel胶=9:1)置于小室,在超净工作台放置30min后,放培养箱培养6h使胶凝固;
(4)取生长状态良好且处于对数生长期的实验组细胞和对照组细胞,用胰酶消化,离心,得到细胞沉淀后,用不带有血清的1640培养基重悬,计数后,设置细胞浓度为5×105个/mL,向每个小室中加入200μL细胞悬液,避免产生气泡。每组细胞设置3个复孔;
(5)下室中加入600μL含有20%的胎牛血清的1640培养基,避免产生气泡。培养箱中培养;
(6)24h、48h后将小室取出,去除上层培养基,注意不要碰触细胞和薄膜。将小室放置在37℃PBS中清洗3次,每次5min,动作不宜过大,尽量轻柔;
(7)清洗过后,用甲醇固定30min,PBS清洗甲醇2次,每次5min;
(8)将小室置于0.1%结晶紫溶液染色15min,PBS清洗结晶紫3次,每次5min;
(9)用棉签轻轻擦去上室残余细胞,晾干。在显微镜下选取5个不同的视野,进行拍照,计数分析细胞侵袭情况;
(10)实验重复3次,分析数据,使用Image J绘制柱形图。
利用Transwell基质胶侵袭法检测敲低PIEZO1蛋白对EC109、EC9706细胞侵袭能力的影响。实验结果如图所示(图7):实验组细胞与对照组细胞在培养了48h后,同一时间不同的5个视野下观察的细胞数,进行统计分析,发现实验组与对照组均能穿透小室,但实验组细胞穿过小室的数量显著下降,并具有统计学意义(P<0.01)。实验结果表明,敲低PIEZO1蛋白可显著抑制食管癌侵袭。
PIEZO1蛋白的敲低可上调P53信号通路关键因子的表达
通过基因芯片高通量检测及RT-qPCR法验证,确定:敲低PIEZO1蛋白后,P53、Caspase3、Caspase9、Bax因子的基因表达水平显著上调(如图8)。
P53、Caspase3、Caspase9、Bax因子的扩增引物如下:
Caspase9:
forward 5’-TCTTTGTGTCCTACTCTACTTTCCC-3’(SEQ ID NO.9)
reverse 5’-CAACGTACCAGGAGCCACTCT-3’(SEQ ID NO.10)
Caspase3:
forward 5’-TGGTTCATCCAGTCGCTTTG-3’(SEQ ID NO.11)
reverse 5’-TTCTGTTGCCACCTTTCGG-3’(SEQ ID NO.12)
p53:
forward 5’-GTTGGTCGGTGGGTTGGTAGT-3’(SEQ ID NO.13)
reverse 5’-GGGATGGGGTGAGATTTCCTT-3’(SEQ ID NO.14)
Bax:
forward 5’-CCCGAGAGGTCTTTTTCCG-3’(SEQ ID NO.15)
reverse 5’-TGAGCACCAGTTTGCTGGC-3’(SEQ ID NO.16)。
RT-qPCR法具体步骤如下:
提取细胞RNA后,进行反转录:
细胞RNA提取步骤:
(1)收集生长状态良好的细胞,转速1500rpm,离心5min,得到细胞沉淀,弃上清,在沉淀中加入1mLTrizol,反复吹打40次,静置冰上10min;
(2)加入200μL氯仿,轻轻混匀15s,静置冰上10min。随后12000rpm,4℃,离心15min;
(3)离心后,会出现分层现象,吸取上层水相移至新的无酶EP管中,加入等量的异丙醇,用手轻轻混匀,静置冰上10min。随后12000rpm,4℃,离心15min;
(4)离心后,会发现管底部出现少量沉淀。弃上清,向管中加入1mL75%乙醇,用于洗涤沉淀。可将沉淀轻轻拍起,观察其移动位置即可。随后7500rpm,4℃,离心5min;
(5)弃上清,将管内剩余乙醇晾干。按照沉淀的量加入适当的DEPC水,溶解RNA;
(6)测量RNA的浓度和纯度,放置-20℃冰箱保存。
反转录体系如表6所示。
表6反转录体系
Figure BDA0002591683410000101
在冰上完成加样并将所有组分混匀,42℃水浴2min。
表7反转录后的PCR体系
Figure BDA0002591683410000102
PCR仪中操作,程序设置为:37℃,15min;85℃,5s。
荧光定量PCR反应配置体系如表8所示。
表8荧光定量PCR反应配置体系
Figure BDA0002591683410000111
上机,设置程序为:95℃,30s;95℃,5s;60℃,5s,40个循环。应结束后,导出Ct值,运用
Figure BDA0002591683410000112
法进行分析统计。
荷瘤小鼠实验证明Piezo1的敲低肿瘤体积和重量明显降低
购买来自北京维通利华的Balb/c无胸腺裸鼠右后腿部皮下注射100μL的EC109实验组和对照组细胞悬液。注射后3d,观察裸鼠状态,并首次用游标卡尺测量肿瘤的长、宽,记录数据;随后每隔2d测量一次肿瘤的长和宽,并记录数据;持续23d,根据公式V=(ab)2/2,计算肿瘤体积(V),其中a和b分别是肿瘤灶的长轴和短轴;在第23d通过颈脱法杀死小鼠,取出肿瘤并称重,收集肿瘤,保存在-80℃,记录数据;统计分析小鼠的体重和肿瘤的增殖率。
动物体内实验证明:与对照组相比,敲低PIEZO1蛋白后,肿瘤的体积和重量显著下调(图9)。肿瘤组织通过Western Blot成功证明:与对照组相比,实验组中PIEZO1蛋白表达显著下调。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
序列表
<110> 河南省医药科学研究院
<120> PIEZO1蛋白作为食管癌标志物的应用
<160> 16
<170> SIPOSequenceListing 1.0
<210> 1
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<212> PRT
<213> Homo sapiens
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Ala Ala Gly Arg Arg Leu Gln Gly Phe Cys Leu Ser Leu Ala Gln Gly
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Ser Ala Ala Thr Asp Ile Thr Ser Ser Leu Ser Asp Asp Gln Val Pro
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Gln Val Ala Leu Val Leu Ala Ile His Leu Trp Met Phe Phe Ile Leu
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Pro Ala Val Thr Glu Arg Met Phe Asn Gln Asn Val Val Ala Gln Leu
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Trp Tyr Phe Val Lys Cys Ile Tyr Phe Ala Leu Ser Ala Tyr Gln Ile
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Arg Cys Gly Tyr Pro Thr Arg Ile Leu Gly Asn Phe Leu Thr Lys Lys
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Tyr Asn His Leu Asn Leu Phe Leu Phe Gln Gly Phe Arg Leu Val Pro
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Phe Leu Val Glu Leu Arg Ala Val Met Asp Trp Val Trp Thr Asp Thr
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Met Ser Leu Val Arg Ser Val Val Gly Val Val Asn Gln Pro Ile Asp
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Val Thr Val Thr Leu Lys Leu Gly Gly Tyr Glu Pro Leu Phe Thr Met
2210 2215 2220
Ser Ala Gln Gln Pro Ser Ile Ile Pro Phe Thr Ala Gln Ala Tyr Glu
2225 2230 2235 2240
Glu Leu Ser Arg Gln Phe Asp Pro Gln Pro Leu Ala Met Gln Phe Ile
2245 2250 2255
Ser Gln Tyr Ser Pro Glu Asp Val Val Thr Ala Gln Ile Glu Gly Ser
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Ser Gly Ala Leu Trp Arg Ile Ser Pro Pro Ser Arg Ala Gln Met Lys
2275 2280 2285
Arg Glu Leu Tyr Asn Gly Thr Ala Asp Ile Thr Leu Arg Phe Thr Trp
2290 2295 2300
Asn Phe Gln Arg Asp Leu Ala Lys Gly Gly Thr Val Glu Tyr Ala Asn
2305 2310 2315 2320
Glu Lys His Met Leu Ala Leu Ala Pro Asn Ser Thr Ala Arg Arg Gln
2325 2330 2335
Leu Ala Ser Leu Leu Glu Gly Thr Ser Asp Gln Ser Val Val Ile Pro
2340 2345 2350
Asn Leu Phe Pro Lys Tyr Ile Arg Ala Pro Asn Gly Pro Glu Ala Asn
2355 2360 2365
Pro Val Lys Gln Leu Gln Pro Asn Glu Glu Ala Asp Tyr Leu Gly Val
2370 2375 2380
Arg Ile Gln Leu Arg Arg Glu Gln Gly Ala Gly Ala Thr Gly Phe Leu
2385 2390 2395 2400
Glu Trp Trp Val Ile Glu Leu Gln Glu Cys Arg Thr Asp Cys Asn Leu
2405 2410 2415
Leu Pro Met Val Ile Phe Ser Asp Lys Val Ser Pro Pro Ser Leu Gly
2420 2425 2430
Phe Leu Ala Gly Tyr Gly Ile Met Gly Leu Tyr Val Ser Ile Val Leu
2435 2440 2445
Val Ile Gly Lys Phe Val Arg Gly Phe Phe Ser Glu Ile Ser His Ser
2450 2455 2460
Ile Met Phe Glu Glu Leu Pro Cys Val Asp Arg Ile Leu Lys Leu Cys
2465 2470 2475 2480
Gln Asp Ile Phe Leu Val Arg Glu Thr Arg Glu Leu Glu Leu Glu Glu
2485 2490 2495
Glu Leu Tyr Ala Lys Leu Ile Phe Leu Tyr Arg Ser Pro Glu Thr Met
2500 2505 2510
Ile Lys Trp Thr Arg Glu Lys Glu
2515 2520
<210> 2
<211> 8089
<212> DNA
<213> Homo sapiens
<400> 2
gggagccgcc gtccggccca gctcggcccc agtgagccga gcgctgcgct ccgccgaggg 60
gcagggcggt cgcctgagcg agcgcgggcc cgggacgtcg gcaccggcgg ggcggccgaa 120
ggagaaggag gaagaggaga aggcggcgcg cgggtccccg cgggtcagcc atggcgcgcc 180
ggccccgggg cccccgcacc gccccatagc gccgcggcgt ccgctcggtc tgggccgggc 240
cctgggccct ccagccatgg agccgcacgt gctcggcgcg gtcctgtact ggctgctgct 300
gccctgcgcg ctgctggctg cctgcctgct ccgcttcagc ggactctcgc tggtctacct 360
gctcttcctg ctgctgctgc cctggttccc cggccccacc cgatgcggcc tccaaggtca 420
cacaggccgc ctcctgcggg cattgctggg cctcagcctg ctcttcctgg tggcccatct 480
cgccctccag atctgcctgc atattgtgcc ccgcctggac cagctcctgg gacccagctg 540
cagccgctgg gagaccctct cgcgacacat aggggtcaca aggctggacc tgaaggacat 600
ccccaacgcc atccggctgg tggcccctga cctgggcatc ttggtggtct cctctgtctg 660
cctcggcatc tgcgggcgcc ttgcaaggaa cacccggcag agcccacatc cacgggagct 720
ggatgatgat gagagggatg tggatgccag cccgacggca gggctgcagg aagcagcaac 780
gctggcccct acacggaggt cacggctggc cgctcgtttc cgagtcacgg cccactggct 840
gctggtggcg gctgggcggg tcctggccgt aacactgctt gcactggcag gcatcgccca 900
cccctcggcc ctctccagtg tctacctgct gctcttcctg gccctctgca cctggtgggc 960
ctgccacttt cccatcagca ctcggggctt cagcagactc tgcgtcgcgg tggggtgctt 1020
cggcgccggc catctcatct gcctctactg ctaccagatg cccttggcac aggctctgct 1080
cccgcctgcc ggcatctggg ctagggtgct gggtctcaag gacttcgtgg gtcccaccaa 1140
ctgctccagc ccccacgcgc tggtcctcaa caccggcctg gactggcctg tgtatgccag 1200
ccccggcgtc ctcctgctgc tgtgctacgc cacggcctct ctgcgcaagc tccgcgcgta 1260
ccgcccctcc ggccagagga aggaggcggc aaaggggtat gaggctcggg agctggagct 1320
agcagagctg gaccagtggc cccaggaacg ggagtctgac cagcacgtgg tgcccacagc 1380
acccgacacc gaggctgata actgcatcgt gcacgagctg accggccaga gctccgtcct 1440
gcggcggcct gtgcggccca agcgggctga gcccagggag gcgtctccgc tccacagcct 1500
gggccacctc atcatggacc agagctatgt gtgcgcgctc attgccatga tggtatggag 1560
catcacctac cacagctggc tgaccttcgt actgctgctc tgggcctgcc tcatctggac 1620
ggtgcgcagc cgccaccaac tggccatgct gtgctcgccc tgcatcctgc tgtatgggat 1680
gacgctgtgc tgcctacgct acgtgtgggc catggacctg cgccctgagc tgcccaccac 1740
cctgggcccc gtcagcctgc gccagctggg gctggagcac acccgctacc cctgtctgga 1800
ccttggtgcc atgttgctct acaccctgac cttctggctc ctgctgcgcc agtttgtgaa 1860
agagaagctg ctgaagtggg cagagtctcc agctgcgctg acggaggtca ccgtggcaga 1920
cacagagccc acgcggacgc agacgctgtt gcagagcctg ggggagctgg tgaagggcgt 1980
gtacgccaag tactggatct atgtgtgtgc tggcatgttc atcgtggtca gcttcgccgg 2040
ccgcctcgtg gtctacaaga ttgtctacat gttcctcttc ctgctctgcc tcaccctctt 2100
ccaggtctac tacagcctgt ggcggaagct gctcaaggcc ttctggtggc tcgtggtggc 2160
ctacaccatg ctggtcctca tcgccgtcta caccttccag ttccaggact tccctgccta 2220
ctggcgcaac ctcactggct tcaccgacga gcagctgggg gacctgggcc tggagcagtt 2280
cagcgtgtcc gagctcttct ccagcatcct ggtgcccggc ttcttcctcc tggcctgcat 2340
cctgcagctg cactacttcc acaggccctt catgcagctc accgacatgg agcacgtgtc 2400
cctgcctggc acgcgcctcc cgcgctgggc tcacaggcag gatgcagtga gtgggacccc 2460
actgctgcgg gaggagcagc aggagcatca gcagcagcag caggaggagg aggaggagga 2520
ggaggactcc agggacgagg ggctgggcgt ggccactccc caccaggcca cgcaggtgcc 2580
tgaaggggca gccaagtggg gcctggtggc tgagcggctg ctggagctgg cagccggctt 2640
ctcggacgtc ctctcacgcg tgcaggtgtt cctgcggcgg ctgctggagc ttcacgtttt 2700
caagctggtg gccctgtaca ccgtctgggt ggccctgaag gaggtgtcgg tgatgaacct 2760
gctgctggtg gtgctgtggg ccttcgccct gccctaccca cgcttccggc ccatggcctc 2820
ctgcctgtcc accgtgtgga cctgcgtcat catcgtgtgt aagatgctgt accagctcaa 2880
ggttgtcaac ccccaggagt attccagcaa ctgcaccgag cccttcccca acagcaccaa 2940
cttgctgccc acggagatca gccagtccct gctgtaccgg gggcccgtgg accctgccaa 3000
ctggtttggg gtgcggaaag ggttccccaa cctgggctac atccagaacc acctgcaagt 3060
gctgctgctg ctggtattcg aggccatcgt gtaccggcgc caggagcact accgccggca 3120
gcaccagctg gccccgctgc ctgcccaggc cgtgtttgcc agcggcaccc gccagcagct 3180
ggaccaggat ctgctcggct gcctcaagta cttcatcaac ttcttcttct acaaattcgg 3240
gctggagatc tgcttcctga tggccgtgaa cgtgatcggg cagcgcatga actttctggt 3300
gaccctgcac ggttgctggc tggtggccat cctcacccgc aggcaccgcc aggccattgc 3360
ccgcctctgg cccaactact gcctcttcct ggcgctgttc ctgctgtacc agtacctgct 3420
gtgcctgggg atgcccccgg ccctgtgcat tgattatccc tggcgctgga gccgggccgt 3480
ccccatgaac tccgcactca tcaagtggct gtacctgcct gatttcttcc gggcccccaa 3540
ctccaccaac ctcatcagcg actttctcct gctgctgtgc gcctcccagc agtggcaggt 3600
gttctcagct gagcgcacag aggagtggca gcgcatggct ggcgtcaaca ccgaccgcct 3660
ggagccgctg cggggggagc ccaaccccgt gcccaacttt atccactgca ggtcctacct 3720
tgacatgctg aaggtggccg tcttccgata cctgttctgg ctggtgctgg tggtggtgtt 3780
tgtcacgggg gccacccgca tcagcatctt cgggctgggc tacctgctgg cctgcttcta 3840
cctgctgctc ttcggcacgg ccctgctgca gagggacaca cgggcccgcc tcgtgctgtg 3900
ggactgcctc attctgtaca acgtcaccgt catcatctcc aagaacatgc tgtcgctcct 3960
ggcctgcgtc ttcgtggagc agatgcagac cggcttctgc tgggtcatcc agctcttcag 4020
ccttgtatgc accgtcaagg gctactatga ccccaaggag atgatggaca gagaccagga 4080
ctgcctgctg cctgtggagg aggctggcat catctgggac agcgtctgct tcttcttcct 4140
gctgctgcag cgccgcgtct tccttagcca ttactacctg cacgtcaggg ccgacctcca 4200
ggccaccgcc ctgctagcct ccaggggctt cgccctctac aacgctgcca acctcaagag 4260
cattgacttt caccgcagga tagaggagaa gtccctggcc cagctgaaaa gacagatgga 4320
gcgtatccgt gccaagcagg agaagcacag gcagggccgg gtggaccgca gtcgccccca 4380
ggacaccctg ggccccaagg accccggcct ggagccaggg cccgacagtc cagggggctc 4440
ctccccgcca cggaggcagt ggtggcggcc ctggctggac cacgccacag tcatccactc 4500
cggggactac ttcctgtttg agtccgacag tgaggaagag gaggaggctg ttcctgaaga 4560
cccgaggccg tcggcacaga gtgccttcca gctggcgtac caggcatggg tgaccaacgc 4620
ccaggcggtg ctgaggcggc ggcagcagga gcaggagcag gcaaggcagg aacaggcagg 4680
acagctaccc acaggaggtg gtcccagcca ggaggtggag ccagcagagg gccccgagga 4740
ggcagcggca ggccggagcc atgtggtgca gagggtgctg agcacggcgc agttcctgtg 4800
gatgctgggg caggcgctag tggatgagct gacacgctgg ctgcaggagt tcacccggca 4860
ccacggcacc atgagcgacg tgctgcgggc agagcgctac ctcctcacac aggagctcct 4920
gcagggcggc gaagtgcaca ggggcgtgct ggatcagctg tacacaagcc aggccgaggc 4980
cacgctgcca ggccccaccg aggcccccaa tgccccaagc accgtgtcca gtgggctggg 5040
cgcggaggag ccactcagca gcatgacaga cgacatgggc agccccctga gcaccggcta 5100
ccacacgcgc agtggcagtg aggaggcagt caccgacccc ggggagcgtg aggctggtgc 5160
ctctctgtac cagggactga tgcggacggc cagcgagctg ctcctggaca ggcgcctgcg 5220
catcccagag ctggaggagg cagagctgtt tgcggagggg cagggccggg cgctgcggct 5280
gctgcgggcc gtgtaccagt gtgtggccgc ccactcggag ctgctctgct acttcatcat 5340
catcctcaac cacatggtca cggcctccgc cggctcgctg gtgctgcccg tgctcgtctt 5400
cctgtgggcc atgctgtcga tcccgaggcc cagcaagcgc ttctggatga cggccatcgt 5460
cttcaccgag atcgcggtgg tcgtcaagta cctgttccag tttgggttct tcccctggaa 5520
cagccacgtg gtgctgcggc gctacgagaa caagccctac ttcccgcccc gcatcctggg 5580
cctggagaag actgacggct acatcaagta cgacctggtg cagctcatgg cccttttctt 5640
ccaccgctcc cagctgctgt gctatggcct ctgggaccat gaggaggact caccatccaa 5700
ggagcatgac aagagcggcg aggaggagca gggagccgag gaggggccag gggtgcctgc 5760
ggccaccacc gaagaccaca ttcaggtgga agccagggtc ggacccacgg acgggacccc 5820
agaaccccaa gtggagctca ggccccgtga tacgaggcgc atcagtctac gttttagaag 5880
aaggaagaag gagggcccag cacggaaagg agcggcagcc atcgaagctg aggacaggga 5940
ggaagaagag ggggaggaag agaaagaggc ccccacgggg agagagaaga ggccaagccg 6000
ctctggagga agagtaaggg cggccgggcg gcggctgcag ggcttctgcc tgtccctggc 6060
ccagggcaca tatcggccgc tacggcgctt cttccacgac atcctgcaca ccaagtaccg 6120
cgcagccacc gacgtctatg ccctcatgtt cctggctgat gttgtcgact tcatcatcat 6180
catttttggc ttctgggcct ttgggaagca ctcggcggcc acagacatca cgtcctccct 6240
atcagacgac caggtacccg aggctttcct ggtcatgctg ctgatccagt tcagtaccat 6300
ggtggttgac cgcgccctct acctgcgcaa gaccgtgctg ggcaagctgg ccttccaggt 6360
ggcgctggtg ctggccatcc acctatggat gttcttcatc ctgcccgccg tcactgagag 6420
gatgttcaac cagaatgtgg tggcccagct ctggtacttc gtgaagtgca tctacttcgc 6480
cctgtccgcc taccagatcc gctgcggcta ccccacccgc atcctcggca acttcctcac 6540
caagaagtac aatcatctca acctcttcct cttccagggg ttccggctgg tgccgttcct 6600
ggtggagctg cgggcagtga tggactgggt gtggacggac accacgctgt ccctgtccag 6660
ctggatgtgt gtggaggaca tctatgccaa catcttcatc atcaaatgca gccgagagac 6720
agagaagaaa tacccgcagc ccaaagggca gaagaagaag aagatcgtca agtacggcat 6780
gggtggcctc atcatcctct tcctcatcgc catcatctgg ttcccactgc tcttcatgtc 6840
gctggtgcgc tccgtggttg gggttgtcaa ccagcccatc gatgtcaccg tcaccctgaa 6900
gctgggcggc tatgagccgc tgttcaccat gagcgcccag cagccgtcca tcatcccctt 6960
cacggcccag gcctatgagg agctgtcccg gcagtttgac ccccagccgc tggccatgca 7020
gttcatcagc cagtacagcc ctgaggacat cgtcacggcg cagattgagg gcagctccgg 7080
ggcgctgtgg cgcatcagtc cccccagccg tgcccagatg aagcgggagc tctacaacgg 7140
cacggccgac atcaccctgc gcttcacctg gaacttccag agggacctgg cgaagggagg 7200
cactgtggag tatgccaacg agaagcacat gctggccctg gcccccaaca gcactgcacg 7260
gcggcagctg gccagcctgc tcgagggcac ctcggaccag tctgtggtca tccctaatct 7320
cttccccaag tacatccgtg cccccaacgg gcccgaagcc aaccctgtga agcagctgca 7380
gcccaatgag gaggccgact acctcggcgt gcgtatccag ctgcggaggg agcagggtgc 7440
gggggccacc ggcttcctcg aatggtgggt catcgagctg caggagtgcc ggaccgactg 7500
caacctgctg cccatggtca ttttcagtga caaggtcagc ccaccgagcc tcggcttcct 7560
ggctggctac ggcatcatgg ggctgtacgt gtccatcgtg ctggtcatcg gcaagttcgt 7620
gcgcggattc ttcagcgaga tctcgcactc cattatgttc gaggagctgc cgtgcgtgga 7680
ccgcatcctc aagctctgcc aggacatctt cctggtgcgg gagactcggg agctggagct 7740
ggaggaggag ttgtacgcca agctcatctt cctctaccgc tcaccggaga ccatgatcaa 7800
gtggactcgt gagaaggagt aggagctgct gctggcgccc gagagggaag gagccggcct 7860
gctgggcagc gtggccacaa ggggcggcac tcctcaggcc gggggagcca ctgccccgtc 7920
caaggccgcc agctgtgatg catcctcccg gcctgcctga gccctgatgc tgctgtcaga 7980
gaaggacact gcgtccccac ggcctgcgtg gcgctgccgt cccccacgtg tactgtagag 8040
tttttttttt aattaaaaaa tgttttattt atacaaatgg acaatcaga 8089
<210> 3
<211> 19
<212> DNA/RNA
<213> Artificial Sequence
<400> 3
gcctcgtggt ctacaagat 19
<210> 4
<211> 19
<212> DNA/RNA
<213> Artificial Sequence
<400> 4
ttctccgaac gtgtcacgt 19
<210> 5
<211> 22
<212> DNA
<213> Artificial Sequence
<400> 5
ctccctgtta cgcttcaatg ct 22
<210> 6
<211> 24
<212> DNA
<213> Artificial Sequence
<400> 6
tgtaggcata tctgaaaggc aagg 24
<210> 7
<211> 21
<212> DNA
<213> Artificial Sequence
<400> 7
cctcgtcccg tagacaaaat g 21
<210> 8
<211> 21
<212> DNA
<213> Artificial Sequence
<400> 8
tgaggtcaat gaaggggtcg t 21
<210> 9
<211> 25
<212> DNA
<213> Artificial Sequence
<400> 9
tctttgtgtc ctactctact ttccc 25
<210> 10
<211> 21
<212> DNA
<213> Artificial Sequence
<400> 10
caacgtacca ggagccactc t 21
<210> 11
<211> 20
<212> DNA
<213> Artificial Sequence
<400> 11
tggttcatcc agtcgctttg 20
<210> 12
<211> 19
<212> DNA
<213> Artificial Sequence
<400> 12
ttctgttgcc acctttcgg 19
<210> 13
<211> 21
<212> DNA
<213> Artificial Sequence
<400> 13
gttggtcggt gggttggtag t 21
<210> 14
<211> 21
<212> DNA
<213> Artificial Sequence
<400> 14
gggatggggt gagatttcct t 21
<210> 15
<211> 19
<212> DNA
<213> Artificial Sequence
<400> 15
cccgagaggt ctttttccg 19
<210> 16
<211> 19
<212> DNA
<213> Artificial Sequence
<400> 16
tgagcaccag tttgctggc 19

Claims (2)

1.PIEZO1蛋白表达的抑制剂在制备治疗食管癌药物中的应用;
所述抑制剂包括PIEZO1蛋白的干扰RNA;
所述PIEZO1蛋白的干扰RNA的核苷酸序列如SEQ ID NO.3所示;
所述抑制剂还包括Piezo1抑制慢病毒,所述Piezo1抑制慢病毒中重组有PIEZO1蛋白的干扰RNA。
2.PIEZO1蛋白表达的抑制剂在制备抑制食管癌细胞的增殖、迁移和侵袭的药物中的应用;
所述抑制剂包括PIEZO1蛋白的干扰RNA;
所述PIEZO1蛋白的干扰RNA的核苷酸序列如SEQ ID NO.3所示;
所述抑制剂还包括Piezo1抑制慢病毒,所述Piezo1抑制慢病毒中重组有PIEZO1蛋白的干扰RNA。
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Citations (4)

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CN106011278A (zh) * 2016-07-18 2016-10-12 宁波大学医学院附属医院 人胃肠肿瘤中piezo2基因的检测试剂
CN108559778A (zh) * 2018-04-28 2018-09-21 北京师范大学 多发性骨髓瘤分子分型及其在用药指导上的应用
WO2020028686A1 (en) * 2018-08-01 2020-02-06 New York University Targeting piezo1 for treatment of cancer and infectious diseases
CN111032069A (zh) * 2017-06-23 2020-04-17 清华大学 Piezo调节剂在制备药物中的用途

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CN106011278A (zh) * 2016-07-18 2016-10-12 宁波大学医学院附属医院 人胃肠肿瘤中piezo2基因的检测试剂
CN111032069A (zh) * 2017-06-23 2020-04-17 清华大学 Piezo调节剂在制备药物中的用途
CN108559778A (zh) * 2018-04-28 2018-09-21 北京师范大学 多发性骨髓瘤分子分型及其在用药指导上的应用
WO2020028686A1 (en) * 2018-08-01 2020-02-06 New York University Targeting piezo1 for treatment of cancer and infectious diseases

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PIEZO1 functions as a potential oncogene by promoting cell proliferation and migration in gastric carcinogenesis;Jinglin Zhang等;《Molecular Carcinogenesis》;20180930;第57卷(第9期);第1144-1155页 *
Touch, Tension, and Transduction – the Function and Regulation of Piezo Ion Channels;Wu,Jason等;《TRENDS IN BIOCHEMICAL SCIENCES》;20170131;第42卷(第1期);第57-71页 *

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