CN113384703A - Dhx34基因的表达抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用 - Google Patents
Dhx34基因的表达抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用 Download PDFInfo
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- CN113384703A CN113384703A CN202110687314.3A CN202110687314A CN113384703A CN 113384703 A CN113384703 A CN 113384703A CN 202110687314 A CN202110687314 A CN 202110687314A CN 113384703 A CN113384703 A CN 113384703A
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Abstract
本发明涉及一种DHX34基因的表达抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用。经研究发现,DHX34基因参与调控肝癌细胞的转移和侵袭,与未敲除DHX34基因的肝癌细胞相比,敲除DHX34基因后的肝癌细胞的转移和侵袭能力明显减弱。DHX34基因的表达抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用,可以改善肝癌容易转移的问题,对进一步改善肝癌患者的长期生存质量具有重要的研究意义。
Description
技术领域
本发明涉及生物医药领域,特别是涉及一种DHX34基因的表达抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用。
背景技术
原发性肝癌是全球范围内最常见的恶性肿瘤之一,在近二十年中,与肝癌相关的年死亡率显著上升,严重威胁着人们的健康。根据全球癌症统计显示,原发性肝癌为第六大最常被诊断的癌症,在男性癌症中排第五,在女性中排名第九。此外,原发性肝癌为全球第四大癌症死因。原发性肝癌包括肝细胞癌(Hepatocellularcarcinoma,HCC)、肝内胆管癌以及其他罕见类型,其中,肝细胞癌是最常见的肝癌类型,占所有病例的75%~85%,每年有超过60万的人死于肝细胞癌。
肝癌的主要危险因素包括乙型肝炎病毒(HBV)、丙型肝炎病毒(HCV)的慢性感染,受黄曲霉毒素污染的食品,大量饮酒,肥胖,吸烟以及2型糖尿病等。
目前,肝癌的治疗药物包括阿霉素、氟尿嘧啶、顺铂、α-干扰素、诺拉曲塞、PI-88、T-67、利卡汀、prolarix、索拉非尼等。常规化疗药物(如阿霉素、氟尿嘧啶、顺铂、α-干扰素等)的治疗不仅毒副作用严重,而且通常也不能明显缓解疾病或延长生命,其他大多数药物的疗效都难尽人意,目前被证明可延长肝癌患者生存期的药物只有酪氨酸激酶抑制剂索拉非尼。
临床上诊断肝癌多以病理组织学及影像学为主要依据,但只有在瘤体长到一定体积时才能诊断,此时肿瘤已大多进入晚期,患者预后差。因此,经过研究发现了一系列与肝癌诊断相关的血清标志物,例如,血清甲胎蛋白(AFP)、异常凝血酶原(DCP/PIVKAⅡ)、磷脂酰肌醇蛋白聚糖3(Glypicans-3,GPC3)、高尔基体糖蛋白(GP73)、α-L-岩藻糖苷酶(α-l-fucosidase,AFU)、骨桥蛋白(osteopontin,OPN)、分泌型糖蛋白(DKK1)、和微循环RNA(miRNA)等。
虽然目前对于肝癌的危险因素、早期诊断、监测方法和治疗技术方面取得了重大进展。肝细胞癌最主要根治性治疗方法包括外科肝切除术和肝移植,此外还可联合肝动脉化疗栓塞术、射频消融以及靶向治疗等,但由于肝癌其起病隐匿、生长迅速、恶性程度高、且易发生侵袭转移,超过70%的患者在被诊断为肝细胞癌时,其疾病的进展程度已经不适合再接受根治性肝切除或肝移植治疗接受外科根治性手术,这导致患者在肝切除术后仍然有很高的复发率和转移率,预后很差。目前,肝细胞癌的5年复发率约为60%~70%,5年生存率低于15%。当癌症扩散到其他器官后,5年生存率更是只有3%。
因此,积极寻找新的抑制肝癌转移的药物,对于进一步改善肝癌患者的长期生存质量具有重要的研究意义。
发明内容
本发明经研究发现,DHX34基因参与调控肝癌细胞的转移和侵袭,敲除DHX34基因后的肝癌细胞与未敲除DHX34基因的肝癌细胞相比,转移和侵袭能力明显减弱。基于此,本发明提供了一种DHX34基因的表达抑制剂和/或DEAH盒解旋酶34的抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用,以改善肝癌容易转移的问题。
一种DHX34基因的表达抑制剂和/或DEAH盒解旋酶34的抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用。
在其中一个实施例中,所述DHX34基因的表达抑制剂选自E7107、普拉地内酯B、斯考他汀A、FR901464、异银杏素和Madrasin中的至少一种。
在其中一个实施例中,所述DHX34基因的表达抑制剂包括抑制DHX34基因表达的核酸片段和编码抑制DHX34基因表达产物活性的物质的核酸片段中的至少一种。
在其中一个实施例中,所述抑制肝癌细胞转移和侵袭的药物包括活性成分和药学上可接受的辅料,所述活性成分包括DHX34基因的表达抑制剂和/或DEAH盒解旋酶34的抑制剂。
在其中一个实施例中,所述药学上可接受的辅料包括溶剂、稳定剂、填充剂、粘合剂、崩解剂和润滑剂中的至少一种。
在其中一个实施例中,所述药学上可接受的辅料包括稳定剂,所述稳定剂选自焦亚硫酸钠、亚硫酸氢钠、维生素C、半胱氨酸、抗坏血酸钠盐、异抗坏血酸钠盐、L-半胱氨酸盐酸盐和依地酸盐至少一种。
在其中一个实施例中,所述药学上可接受的辅料包括填充剂,所述填充剂选自微晶纤维素、乳糖、淀粉、预交化淀粉、甘露醇和山梨醇中的至少一种。
在其中一个实施例中,所述药学上可接受的辅料包括崩解剂,所述崩解剂选自羧甲基淀粉钠、低取代羟丙基纤维素、交联聚乙烯比咯烷酮、交联羧甲基纤维素纳和干淀粉中的至少一种。
在其中一个实施例中,所述药学上可接受的辅料包括粘合剂,所述粘合剂选自羟丙纤维素、甲基纤维素、乙基纤维素、聚维酮和交联聚维酮中的至少一种。
在其中一个实施例中,所述药学上可接受的辅料包括润滑剂,所述润滑剂选自硬脂酸镁、滑石粉、微粉硅胶和富马酸硬脂酸钠中的至少一种。
附图说明
图1为实施例1中验证人肝癌细胞MHCC97H中DHX34基因敲除情况的Western blot结果;
图2为实施例1中人肝癌细胞MHCC97H、MHCC97H-DHX34 KO1和MHCC97H-DHX34 KO2的划痕实验结果;
图3和图4为实施例1中人肝癌细胞MHCC97H、MHCC97H-DHX34 KO1和MHCC97H-DHX34KO2的Transwell实验和Invasion实验结果;
图5为实施例1中E7107对人肝癌细胞MHCC97H中DHX34表达影响的结果;
图6为实施例1中经E7107处理后的人肝癌细胞MHCC97H的划痕实验结果;
图7和图8为实施例1中经E7107处理后的人肝癌细胞MHCC97H的Transwell实验和Invasion实验结果。
具体实施方式
为了便于理解本发明,下面将对本发明进行更全面的描述,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使本发明公开内容更加透彻全面。
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。
术语解释:
“载体”是指可将多聚核苷酸插入其中的一种核酸运载工具。当载体能使插入的多核苷酸编码的蛋白获得表达时,载体称为表达载体。载体可以通过转化,转导或者转染导入宿主细胞,使其携带的遗传物质元件在宿主细胞中获得表达。载体是本领域技术人员公知的,包括但不限于:质粒;噬菌粒;柯斯质粒;人工染色体,例如酵母人工染色体(YAC)、细菌人工染色体(BAC)或P1来源的人工染色体(PAC);噬菌体如λ噬菌体或M13噬菌体及动物病毒等。可用作载体的动物病毒包括但不限于,逆转录酶病毒(包括慢病毒)、腺病毒、腺相关病毒、疱疹病毒(如单纯疱疹病毒)、痘病毒、杆状病毒、乳头瘤病毒、乳头多瘤空泡病毒(如SV40)。
DHX螺旋酶是人类RNA螺旋酶的一个分支,主要结构为一个催化核心及N-末端结构域(N-terminal rerminal,NTR)和C-末端结构域(C-terminal rerminal,CTR)。DHX螺旋酶家族的NTR具有多样性,可参与细胞应激反应、转录和翻译;DHX螺旋酶的CTR区高度保守,其功能可能是参与ATP结合与水解,因而与RNA解链和核糖核蛋白重塑有关。所以,DHX螺旋酶在RNA转录、mRNA剪接、翻译和核糖体合成方面发挥重要作用。
DEAH盒解旋酶34(DEAH box polypeptide 34,DHX34)是DHX螺旋酶家族的一员,由DHX34基因编码。
本发明经一系列研究发现,DHX34基因参与调控肝癌细胞的转移和侵袭,敲除DHX34基因后的肝癌细胞与未敲除DHX34基因的肝癌细胞相比,转移和侵袭能力明显减弱。基于此,本申请一实施方式提供了一种DHX34基因的表达抑制剂和/或DEAH盒解旋酶34在制备抑制肝癌细胞转移和侵袭的药物中的应用。通过DHX34基因的表达抑制剂抑制DHX34基因表达DEAH盒解旋酶34和/或DEAH盒解旋酶34的抑制剂抑制DEAH盒解旋酶34活性,阻断肝癌细胞的转移和侵袭,改善肝癌容易转移的问题。
在一些实施例中,DHX34基因的表达抑制剂为化学类抑制剂。例如含有抑制DHX34基因的表达的化合物的制剂。具体地,DHX34基因的表达抑制剂包括活性成分。可选地,DHX34基因的表达抑制剂的活性成分包括可变剪切抑制剂。进一步地,DHX34基因的表达抑制剂的活性成分包括普拉地内酯(pladienolide)、斯考他汀A(spliceostatin A,SSA)、FR901464、异银杏素(Isoginkgetin)和Madrasin中的至少一种。
在其中一个实施例中,DHX34基因的表达抑制剂的活性成分包括普拉地内酯。普拉地内酯是从细菌普拉特链霉菌(Streptomyces platensis)分离出的化合物。在一个可选地具体示例中,DHX34基因的表达抑制剂的活性成分包括E7107、普拉地内酯B(pladienolideB,PlaB)、普拉地内酯D(pladienolide D)中的至少一种。
E7107是1-Piperazinecarboxylic acid,4-cycloheptyl-,(2S,3S,4E,6S,7R,10R)-7,10-dihydroxy-2-[(1E,3E,5R)-5-hydroxy-6-[(2R,3R)-3-[(1R,2S)-2-hydroxy-1-meth ylbutyl]-2-oxiranyl]-1,5-dimethyl-1,3-hexadien-1-yl]-3,7-dimethyl-12-oxooxacyclod odec-4-en-6-yl ester)的简称。E7107的化学结构为:
普拉地内酯B,或称11107B,全称为:[(1E,3E,5S)-6-[(2R,3R)-3-[(1R,2S)-2-羟基-1-甲基丁基]-2-环氧乙烷基]-1,5-二甲基-1,3-己二烯-1-基]-7,11-二甲基-,(4R,7R,8S,9E,11S,12S)。普拉地内酯B的化学结构为:
在一个可选地具体示例中,DHX34基因的表达抑制剂的活性成分为普拉地内酯。
在其中一个实施例中,DHX34基因的表达抑制剂的活性成分包括斯考他汀A。斯考他汀A的化学结构为:
在一个可选地具体示例中,DHX34基因的表达抑制剂的活性成分为斯考他汀A。
在其中一个实施例中,DHX34基因的表达抑制剂的活性成分包括FR901464。FR901464是由假单孢菌Pseudomonas sp.No.2663产生具有高效抗肿瘤活性的天然产物,对多种肿瘤细胞体外IC50为0.6nM~3.4nM。FR901464的化学结构为:
在一个可选地具体示例中,DHX34基因的表达抑制剂的活性成分为FR901464。
在一些实施例中,DHX34基因的表达抑制剂为生物类抑制剂。例如,利用RNA干扰技术特异性关闭DHX34基因的表达。RNA干扰(RNAi)是有效沉默或抑制目标基因表达的过程,该过程通过双链RNA(dsRNA)使得目标基因相应的mRNA选择性失活来实现的。RNA干扰由转运到细胞细胞质中的双链RNA激活。沉默机制可导致由小干扰RNA(siRNA)或短发夹RNA(shRNA)诱导实现靶mRNA的降解,或者通过小RNA(miRNA)诱导特定mRNA翻译的抑制。
在其中一个实施例中,DHX34基因的表达抑制剂包括活性成分,该活性成分包括重组表达载体,该重组表达载体包含抑制DHX34基因表达的核酸片段和编码抑制DHX34基因表达产物活性的物质的核酸片段中的至少一种。该DHX34基因的表达抑制剂通过重组表达载体表达的核酸片段使得DHX34基因的表达受抑制。该重组表达载体的制备包括以下步骤:根据DHX34基因设计能与DHX34基因的mRNA特异性结合的核苷酸片段,并将该片段插入到空表达载体中,制备重组表达载体。
可以理解的是,DHX34基因的表达抑制剂除活性成分外还可以包括一些辅料。
基于DHX34基因的表达产物为DEAH盒解旋酶34和研究结果发现,抑制DEAH盒解旋酶34活性的物质(DEAH盒解旋酶34的抑制剂)同样也能抑制肝癌细胞转移和侵袭。可选地,DEAH盒解旋酶34的抑制剂的活性成分选自普拉地内酯B、斯考他汀A、FR901464、异银杏素和Madrasin中的至少一种。
在一些实施例中,抑制肝癌细胞转移和侵袭的药物包括活性成分和药学上可接受的辅料,活性成分包括DHX34基因的表达抑制剂和/或DEAH盒解旋酶34的抑制剂。具体地,DHX34基因的表达抑制剂和DEAH盒解旋酶34的抑制剂如上述。可选地,药学上可接受的辅料包括溶剂、稳定剂、填充剂、粘合剂、崩解剂和润滑剂中的至少一种。
具体地,稳定剂用于维持抑制肝癌细胞转移和侵袭的药物的稳定性。可选地,稳定剂选自焦亚硫酸钠、亚硫酸氢钠、维生素C、半胱氨酸、抗坏血酸钠盐、异抗坏血酸钠盐、L-半胱氨酸盐酸盐和依地酸盐至少一种。在其中一个可选地具体示例中,稳定剂选自焦亚硫酸钠、亚硫酸氢钠、维生素C、半胱氨酸、抗坏血酸钠盐、异抗坏血酸钠盐、L-半胱氨酸盐酸盐或依地酸盐。当然,在其他实施例中,稳定剂不限于上述,还可以是其他能维持抑制肝癌细胞转移和侵袭的药物稳定的物质。
具体地,填充剂用于增加抑制肝癌细胞转移和侵袭的药物的重量,利于成型。可选地,填充剂选自微晶纤维素、乳糖、淀粉、预交化淀粉、甘露醇和山梨醇中的至少一种。在一个可选地具体示例中,填充剂为微晶纤维素、乳糖、淀粉、预交化淀粉、甘露醇或山梨醇。当然,在其他实施例中,填充剂不限于上述,还可以是其他可以食用的填充剂。
具体地,粘合剂起粘合作用。可选地,粘合剂选自羟丙纤维素、甲基纤维素、乙基纤维素、聚维酮和交联聚维酮中的至少一种。在一个具体的示例中,粘合剂为羟丙纤维素、甲基纤维素、乙基纤维素、聚维酮或交联聚维酮。当然,在其他实施例中,粘合剂不限于上述,还可以是其他可食用的具有粘合作用的物质。
具体地,崩解剂可以使得抑制肝癌细胞转移和侵袭的药物在胃肠液中迅速裂碎成细小颗粒的物质,从而使活性成分迅速溶解吸收。可选地,崩解剂选自羧甲基淀粉钠、低取代羟丙基纤维素、交联聚乙烯比咯烷酮、交联羧甲基纤维素纳和干淀粉中的至少一种。可以理解的是,在其他实施例中,崩解剂不限于上述,还可以是其他可以食用的具有崩解作用的物质。
具体地,润滑剂具有助流、抗粘和润滑的作用,利于抑制肝癌细胞转移和侵袭的药物的制备。可选地,润滑剂选自硬脂酸镁、滑石粉、微粉硅胶和富马酸硬脂酸钠中的至少一种。在一个具体地示例中,润滑剂为硬脂酸镁、滑石粉、微粉硅胶或富马酸硬脂酸钠。可以理解的是,在其他实施例中,润滑剂不限于上述,还可以是其他可以食用的具有润滑作用的物质。
可以理解的是,在其他实施例中,抑制肝癌细胞转移和侵袭的药物的药学上可接受的辅料不限于上述,还可以是其他辅料。
可选地,抑制肝癌细胞转移和侵袭的药物的剂型为片剂、注射剂、冻干粉剂或胶囊剂。当然,抑制肝癌细胞转移和侵袭的药物的剂型不限于上述,还可以是其他剂型。
在其中一个实施例中,抑制肝癌细胞转移和侵袭的药物为片剂;抑制肝癌细胞转移和侵袭的药物的药学上可接受的辅料包括稳定剂、填充剂、粘合剂、崩解剂和润滑剂。
在其中一个实施例中,抑制肝癌细胞转移和侵袭的药物为注射剂;抑制肝癌细胞转移和侵袭的药物的药学上可接受的辅料包括稳定剂、酸度调节剂、渗透压调节剂、抑菌剂(例如三氯叔丁醇、苯酚等)、止痛剂(例如苯甲醇)和助溶剂中的至少一种。
上述抑制肝癌细胞转移和侵袭的药物,能够明显抑制肝癌细胞的转移和侵袭,对进一步改善肝癌患者的长期生存质量,具有重要的研究意义。
具体实施例
以下结合具体实施例进行详细说明。以下实施例如未特殊说明,则不包括除不可避免的杂质外的其他组分。实施例中采用试剂和仪器如非特别说明,均为本领域常规选择。实施例中未注明具体条件的实验方法,按照常规条件,例如文献、书本中所述的条件或者生产厂家推荐的方法实现。在下文中E7107为:
实施例1
(1)利用CRISPR/Cas9技术将人肝癌细胞MHCC97H(来源于复旦大学附属中山医院)中DHX34基因进行敲除而获得两株细胞系MHCC97H-DHX34 KO1和MHCC97H-DHX34 KO2,并使用Western blot验证DHX34基因的敲除情况,结果如图1所示,图1中“Parantal”是指人肝癌细胞MHCC97H组,人肝癌细胞MHCC97H组中出现的两个条带为DHX34的两个亚基;“DHX34-KO1”是指人肝癌细胞MHCC97H-DHX34 KO1组;“DHX34-KO2”是指人肝癌细胞MHCC97H-DHX34KO2组。
由图1可知,利用CRISPR/Cas9技术敲除DHX34基因的两株稳定细胞系MHCC97H-DHX34 KO1和MHCC97H-DHX34 KO2构建成功。
(2)培养人肝癌细胞MHCC97H、MHCC97H-DHX34 KO1和MHCC97H-DHX34 KO2,三者的培养基均为含有10%胎牛血清(Gibco)、100U/mL青霉素和100μg/mL链霉素的DMEM培养基(Gibco);三者的培养环境均为:含5%CO2、37℃的孵育箱。
(3)细胞划痕实验
待人肝癌细胞MHCC97H、MHCC97H-DHX34 KO1和MHCC97H-DHX34KO2的细胞状态处于指数增长期时,分别接种这三株人肝癌细胞于6孔板中,第2天待细胞汇合度达80%~90%时进行划痕并进行拍照,此时记录为0h,连续记录划痕后24h的细胞生长情况,结果如图2所示。在图2中,“Parantal”是指人肝癌细胞MHCC97H组;“KO1”是指人肝癌细胞MHCC97H-DHX34KO1组;“KO2”是指人肝癌细胞MHCC97H-DHX34 KO2组。
由图2可知,敲除DHX34基因后的人肝癌细胞MHCC97H-DHX34 KO1和MHCC97H-DHX34KO2的愈合速度明显低于没有敲除DHX34基因的人肝癌细胞MHCC97H。
(4)Transwell实验
待人肝癌细胞MHCC97H、MHCC97H-DHX34 KO1和MHCC97H-DHX34KO2的细胞状态处于指数增长期时,将三种人肝癌细胞分别进行如下操作:将8×104细胞重悬于400μL DMEM培养基中并接种到transwell小室中,在24孔板中加入900μl含10%FBS的DMEM培养基,12h后检测穿过小室的肝癌细胞数量,结果如图3和图4所示,在图3和图4中,“Parantal”是指人肝癌细胞MHCC97H组;“DHX34-KO1”是指人肝癌细胞MHCC97H-DHX34 KO1组;“DHX34-KO2”是指人肝癌细胞MHCC97H-DHX34 KO2组;“Migration”是指迁移;“Invasion”是指侵袭。
(5)Invasion实验
待人肝癌细胞MHCC97H、MHCC97H-DHX34 KO1和MHCC97H-DHX34KO2的细胞状态处于指数增长期时,将三种人肝癌细胞分别进行如下操作:将8×104细胞重悬于400μL DMEM并接种到含基质胶的Invasion小室中,在24孔板中加入900μl含10%FBS的培养基,12h后检测穿过小室的人肝癌细胞数量,结果如图3和图4所示,
由图3和图4可知,敲除DHX34基因后的人肝癌细胞MHCC97H-DHX34KO1和MHCC97H-DHX34 KO2的迁移和侵袭能力明显低于没有敲除DHX34基因的人肝癌细胞MHCC97H,这表明DHX34基因参与调控人肝癌细胞的转移和侵袭。
(6)DHX34基因的表达抑制剂E7107对DHX34表达水平的影响
使用E7107(10nM)对人肝癌细胞MHCC97H进行处理,48h后利用western blot实验检测DHX34的表达水平,结果如图5所示。
由图5可知,E7107能明显抑制人肝癌细胞MHCC97H中DHX34基因的表达。
(7)E7107对人肝癌细胞愈合速度的影响
将人肝癌细胞MHCC97H接种到多孔板中,使用E7107(10nM)对人肝癌细胞MHCC97H进行处理,24h后划痕拍照,此时记录为0h,然后24h后拍照划痕情况,同时设置空白对照组(人肝癌细胞MHCC97H不使用E7107处理),结果如图6所示。
由图6可知,采用E7107处理后的人肝癌细胞MHCC97H的划痕宽度大于未经处理的人肝癌细胞MHCC97H的划痕宽度,这表明E7107抑制人肝癌细胞MHCC97H的愈合。
(8)Transwell实验和Invasion实验
使用含E7107(10nM)的DMEM培养基对肝癌细胞MHCC97H进行培养,24h后将8×104人肝癌细胞MHCC97H重悬于400μL DMEM培养基中并接种到transwell小室中,在24孔板中加入900μl含10%FBS的DMEM培养基,12h后检测穿过小室的肝癌细胞数量,结果如图7和图8所示,在图7和图8中,“Migration”是指迁移;“Invasion”是指侵袭。
使用含E7107(10nM)的DMEM培养基对肝癌细胞MHCC97H进行培养,24h后将8×104细胞重悬于400μL DMEM并接种到含基质胶的Invasion小室中,在24孔板中加入900μl含10%FBS的培养基,12h后检测穿过小室的人肝癌细胞数量,结果如图7和图8所示。
由图7和图8可知,E7107处理后的人肝癌细胞MHCC97H的迁移和侵袭能力明显低于未经处理的人肝癌细胞MHCC97H,这表明E7107能够抑制人肝癌细胞的转移和侵袭。
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式,便于具体和详细地理解本发明的技术方案,但并不能因此而理解为对发明专利保护范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。应当理解的是,在本领域技术人员在本发明提供的技术方案的基础上,通过合乎逻辑的分析、推理或有限的试验得到的技术方案,均在本发明所附权利要求的保护范围内。因此,本发明专利的保护范围应以所附权利要求的内容为准,说明书及附图可以用于解释权利要求的内容。
Claims (10)
1.DHX34基因的表达抑制剂和/或DEAH盒解旋酶34的抑制剂在制备抑制肝癌细胞转移和侵袭的药物中的应用。
2.根据权利要求1所述的应用,其特征在于,所述DHX34基因的表达抑制剂选自E7107、普拉地内酯B、普拉地内酯D、斯考他汀A、FR901464、异银杏素和Madrasin的至少一种。
3.根据权利要求1所述的应用,其特征在于,所述DHX34基因的表达抑制剂包括抑制DHX34基因表达的核酸片段和编码抑制DHX34基因表达产物活性的物质的核酸片段中的至少一种。
4.根据权利要求1所述的应用,其特征在于,所述抑制肝癌细胞转移和侵袭的药物包括活性成分和药学上可接受的辅料,所述活性成分包括DHX34基因的表达抑制剂和/或DEAH盒解旋酶34的抑制剂。
5.根据权利要求4所述的应用,其特征在于,所述药学上可接受的辅料包括溶剂、稳定剂、填充剂、粘合剂、崩解剂和润滑剂中的至少一种。
6.根据权利要求4所述的应用,其特征在于,所述药学上可接受的辅料包括稳定剂,所述稳定剂选自焦亚硫酸钠、亚硫酸氢钠、维生素C、半胱氨酸、抗坏血酸钠盐、异抗坏血酸钠盐、L-半胱氨酸盐酸盐和依地酸盐至少一种。
7.根据权利要求4所述的应用,其特征在于,所述药学上可接受的辅料包括填充剂,所述填充剂选自微晶纤维素、乳糖、淀粉、预交化淀粉、甘露醇和山梨醇中的至少一种。
8.根据权利要求4所述的应用,其特征在于,所述药学上可接受的辅料包括崩解剂,所述崩解剂选自羧甲基淀粉钠、低取代羟丙基纤维素、交联聚乙烯比咯烷酮、交联羧甲基纤维素纳和干淀粉中的至少一种。
9.根据权利要求4所述的应用,其特征在于,所述药学上可接受的辅料包括粘合剂,所述粘合剂选自羟丙纤维素、甲基纤维素、乙基纤维素、聚维酮和交联聚维酮中的至少一种。
10.根据权利要求4所述的应用,其特征在于,所述药学上可接受的辅料包括润滑剂,所述润滑剂选自硬脂酸镁、滑石粉、微粉硅胶和富马酸硬脂酸钠中的至少一种。
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