CN110946866B - 达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用 - Google Patents
达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用 Download PDFInfo
- Publication number
- CN110946866B CN110946866B CN201911270520.3A CN201911270520A CN110946866B CN 110946866 B CN110946866 B CN 110946866B CN 201911270520 A CN201911270520 A CN 201911270520A CN 110946866 B CN110946866 B CN 110946866B
- Authority
- CN
- China
- Prior art keywords
- dappivirine
- cells
- viral hemorrhagic
- infection
- hemorrhagic septicemia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 241000711825 Viral hemorrhagic septicemia virus Species 0.000 title claims abstract description 44
- 239000003814 drug Substances 0.000 title claims abstract description 28
- 208000015181 infectious disease Diseases 0.000 title claims abstract description 22
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 15
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title description 2
- 230000009385 viral infection Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 abstract description 21
- ILAYIAGXTHKHNT-UHFFFAOYSA-N 4-[4-(2,4,6-trimethyl-phenylamino)-pyrimidin-2-ylamino]-benzonitrile Chemical compound CC1=CC(C)=CC(C)=C1NC1=CC=NC(NC=2C=CC(=CC=2)C#N)=N1 ILAYIAGXTHKHNT-UHFFFAOYSA-N 0.000 abstract description 8
- 229950006497 dapivirine Drugs 0.000 abstract description 8
- 208000001449 Viral Hemorrhagic Septicemia Diseases 0.000 abstract description 5
- 230000000840 anti-viral effect Effects 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 30
- 238000012423 maintenance Methods 0.000 description 21
- 239000000243 solution Substances 0.000 description 16
- 239000002609 medium Substances 0.000 description 13
- 241000700605 Viruses Species 0.000 description 11
- 239000013642 negative control Substances 0.000 description 11
- 229940079593 drug Drugs 0.000 description 10
- 238000011534 incubation Methods 0.000 description 10
- IWUCXVSUMQZMFG-AFCXAGJDSA-N Ribavirin Chemical compound N1=C(C(=O)N)N=CN1[C@H]1[C@H](O)[C@H](O)[C@@H](CO)O1 IWUCXVSUMQZMFG-AFCXAGJDSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229960000329 ribavirin Drugs 0.000 description 9
- HZCAHMRRMINHDJ-DBRKOABJSA-N ribavirin Natural products O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1N1N=CN=C1 HZCAHMRRMINHDJ-DBRKOABJSA-N 0.000 description 9
- 102000004142 Trypsin Human genes 0.000 description 8
- 108090000631 Trypsin Proteins 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 238000011282 treatment Methods 0.000 description 8
- 239000012588 trypsin Substances 0.000 description 8
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- 235000019688 fish Nutrition 0.000 description 7
- 108090000623 proteins and genes Proteins 0.000 description 7
- 230000010076 replication Effects 0.000 description 7
- 238000010609 cell counting kit-8 assay Methods 0.000 description 6
- 230000003833 cell viability Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000013641 positive control Substances 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 238000011529 RT qPCR Methods 0.000 description 4
- 230000003612 virological effect Effects 0.000 description 4
- 208000036142 Viral infection Diseases 0.000 description 3
- 230000000120 cytopathologic effect Effects 0.000 description 3
- 230000012202 endocytosis Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000010839 reverse transcription Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 108060003393 Granulin Proteins 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000002123 RNA extraction Methods 0.000 description 2
- 241000711931 Rhabdoviridae Species 0.000 description 2
- 108010087230 Sincalide Proteins 0.000 description 2
- 101710172711 Structural protein Proteins 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 238000010804 cDNA synthesis Methods 0.000 description 2
- 239000006285 cell suspension Substances 0.000 description 2
- 239000002299 complementary DNA Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003013 cytotoxicity Effects 0.000 description 2
- 231100000135 cytotoxicity Toxicity 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001963 growth medium Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000003834 intracellular effect Effects 0.000 description 2
- 231100000636 lethal dose Toxicity 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229940042402 non-nucleoside reverse transcriptase inhibitor Drugs 0.000 description 2
- 239000002726 nonnucleoside reverse transcriptase inhibitor Substances 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000003753 real-time PCR Methods 0.000 description 2
- IZTQOLKUZKXIRV-YRVFCXMDSA-N sincalide Chemical compound C([C@@H](C(=O)N[C@@H](CCSC)C(=O)NCC(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(N)=O)NC(=O)[C@@H](N)CC(O)=O)C1=CC=C(OS(O)(=O)=O)C=C1 IZTQOLKUZKXIRV-YRVFCXMDSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 102000040650 (ribonucleotides)n+m Human genes 0.000 description 1
- 102000010400 1-phosphatidylinositol-3-kinase activity proteins Human genes 0.000 description 1
- ILAYIAGXTHKHNT-HVRMQOCCSA-N 4-[[4-(2,4,6-trimethylanilino)pyrimidin-2-yl]amino]benzonitrile Chemical group CC1=CC(C)=CC(C)=C1NC1=CC=NC(NC=2C=CC(=CC=2)[14C]#N)=N1 ILAYIAGXTHKHNT-HVRMQOCCSA-N 0.000 description 1
- 102000007469 Actins Human genes 0.000 description 1
- 108010085238 Actins Proteins 0.000 description 1
- 241000972773 Aulopiformes Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 208000032612 Glial tumor Diseases 0.000 description 1
- 206010018338 Glioma Diseases 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- 108010078851 HIV Reverse Transcriptase Proteins 0.000 description 1
- 208000032969 Hemorrhagic Septicemia Diseases 0.000 description 1
- 241000725303 Human immunodeficiency virus Species 0.000 description 1
- 241000713772 Human immunodeficiency virus 1 Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 108060004795 Methyltransferase Proteins 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 102000011931 Nucleoproteins Human genes 0.000 description 1
- 108010061100 Nucleoproteins Proteins 0.000 description 1
- 241001327682 Oncorhynchus mykiss irideus Species 0.000 description 1
- 108091007960 PI3Ks Proteins 0.000 description 1
- 208000014645 Pasteurella hemorrhagic septicemia Diseases 0.000 description 1
- 102000007982 Phosphoproteins Human genes 0.000 description 1
- 108010089430 Phosphoproteins Proteins 0.000 description 1
- 241000594009 Phoxinus phoxinus Species 0.000 description 1
- 101710118046 RNA-directed RNA polymerase Proteins 0.000 description 1
- 241000157468 Reinhardtius hippoglossoides Species 0.000 description 1
- 102000004389 Ribonucleoproteins Human genes 0.000 description 1
- 108010081734 Ribonucleoproteins Proteins 0.000 description 1
- 206010040047 Sepsis Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000003281 allosteric effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000004900 autophagic degradation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 231100000433 cytotoxic Toxicity 0.000 description 1
- 230000001472 cytotoxic effect Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 230000002900 effect on cell Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000003641 microbiacidal effect Effects 0.000 description 1
- 229940124561 microbicide Drugs 0.000 description 1
- 239000002855 microbicide agent Substances 0.000 description 1
- 230000006654 negative regulation of apoptotic process Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008506 pathogenesis Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000012257 pre-denaturation Methods 0.000 description 1
- 238000001243 protein synthesis Methods 0.000 description 1
- 239000011535 reaction buffer Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 208000013223 septicemia Diseases 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000014616 translation Effects 0.000 description 1
- 241000712461 unidentified influenza virus Species 0.000 description 1
- 229940044953 vaginal ring Drugs 0.000 description 1
- 239000006213 vaginal ring Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Veterinary Medicine (AREA)
- Virology (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Communicable Diseases (AREA)
- Organic Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oncology (AREA)
- Molecular Biology (AREA)
- Epidemiology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明公开了一种达匹维林的新用途,尤其是达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用。旨在寻找对病毒性出血性败血症病毒有抗病毒活性的药物,可用于病毒性出血性败血症病毒感染的治疗。本发明通过研究发现达匹维林(Dapivirine)具有抑制病毒性出血性败血症病毒对细胞感染的功能,在治疗病毒性出血败血症方面具有很好的效果。即达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用。
Description
技术领域
本发明涉及达匹维林的新用途,尤其是达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用。
背景技术
病毒性出血性败血病(Viral hemorrhagic septicemia,VHS)是一种由病毒性出血性败血症病毒(VHSV)引起的烈性传染病,该病毒能够感染多种海洋和淡水鱼类,包括虹鳟、鲑鱼、大菱鲆等,引发严重的鱼类出血性败血症。VHS主要流行于欧洲,北美,日本及韩国,曾造成严重的经济损失,是出现疫情后必须向世界动物卫生组织汇报的水产疫病之一。
VHSV属于弹状病毒科(Rhabdoviridae)。弹状病毒呈子弹状,长度约170-180nm,宽度约60-70nm,含包膜。病毒基因组为负链ssRNA,大小约11kb,编码5种结构蛋白:核蛋白(nucleoprotein、N)、聚合酶相关磷蛋白(polymerase-associated phosphoprotein、P)、基质蛋白(matrix protein、M)、糖蛋白(glycoprotein、G)和RNA依赖的RNA聚合酶(RDRP、L);第六个基因位于G和L之间,编码与发病机制有关的非结构蛋白(Nv)。VHSV可根据N和G基因的差别分成4个地理亚型:I、II、III、IV。
达匹维林(Dapivirine,TCM120)是一种非核苷逆转录酶抑制剂(nonnucleosidereverse transcriptase inhibitor,NNRTIs),别称为TMC120,化学式为C20H19N5,属于二芳基嘧啶化合物(DAPY)。达匹维林能够结合HIV逆转录酶的变构位点,使酶的构象改变而失活,从而抑制HIV-1的复制。目前,达匹维林主要作为杀微生物剂,被制成半固体凝胶、弹性硅胶两种剂型置于阴道环内,用于防止HIV的传播。达匹维林对包括A型和B型在内的多株流感病毒具有抗病毒活性,在感染初期抑制病毒核糖核蛋白进入细胞核,从而抑制病毒基因组的复制和蛋白合成。在肿瘤研究方面,达匹维林能够通过降低U87 GBM细胞对凋亡和自噬的抑制,导致JNK和PI3K/Akt通路的激活,来抑制胶质瘤细胞的活性。
目前,尚未有相关文献证实达匹维林具有抗VHSV活性。
发明内容
本发明旨在寻找对病毒性出血性败血症病毒有抗病毒活性的药物,可用于病毒性出血性败血症病毒感染的治疗。本发明通过研究发现达匹维林(Dapivirine)具有抑制病毒性出血性败血症病毒对细胞感染的功能,在治疗病毒性出血败血症方面具有很好的效果。
为实现上述目的,本发明提供的技术方案为:达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用。
作为本发明的一个实施例,达匹维林在制备抑制鱼类病毒性出血性败血症病毒对FHM细胞感染的药物中的应用。体外细胞毒性实验结果表明,达匹维林对FHM细胞的半数致死浓度CC50是8.0μM,如图1所示;达匹维林对FHM细胞的保护实验结果表明,达匹维林的半数最大效应浓度EC50为0.91±0.05μM,如图2所示。
作为本发明的一个实施例,达匹维林在制备抑制鱼类VHSV病毒对细胞感染的药物中的应用。本发明检测了达匹维林的抗VHSV感染的能力,药物在病毒感染前加入细胞、药物与病毒共同加入细胞、药物在病毒感染后加入细胞和药物与病毒共同孵育后加入细胞,24小时和36小时后细胞病变效应(CPE)均显著减少,细胞内病毒核酸的复制均显著下降,如图3、4所示。
作为本发明的一个实施例,达匹维林在制备抑制鱼类VHSV病毒对FHM细胞感染的药物中的应用。本发明检测了达匹维林抗VHSV感染的过程。在VHSV感染前、吸附、内吞以及胞内复制过程中,加入达匹维林处理,均能够对一定时间后细胞内的病毒基因复制产生显著的抑制效果,如图5所示。
附图说明
图1为CCK-8试验检测达匹维林对FHM细胞的细胞毒作用研究结果图;
图2为CCK-8试验检测达匹维林在VHSV感染下对FHM细胞具有保护作用研究结果图;
图3为qRT-PCR检测达匹维林具有抗VHSV活性研究结果图;
图4为观察CPE检测达匹维林在病毒感染前加入具有抗VHSV活性研究结果图;
图5为qRT-PCR检测达匹维林对VHSV感染过程影响的研究结果图。
具体实施方式
下面结合具体实施方式对本发明的权利要求做进一步的详细说明,但不构成对本发明权利要求的任何限制。
实施例1细胞活性检测达匹维林对细胞的保护作用研究
1.细胞系和细胞培养
实验过程中所用的细胞系为FHM(Fathead minnow),培养基为M199(10%FBS的培养液和2%FBS的维持培养液),细胞培养于28℃恒温培养箱中。
2.细胞活力检测达匹维林对FHM的细胞毒性
Cell Counting Kit-8用于检测达匹维林对FHM的毒性。将处于对数增长期的FHM细胞制成悬液并以每孔100μl接种于96孔板中,于28℃下培养24h至80-90%的细胞覆盖密度,更换含有不同浓度(0.5、1、2、3、5、7、9、11μM)达匹维林的维持培养液,以0.05%的DMSO作为阴性对照并每组设置4个复孔,28℃下孵育48h。随后更换100μl新鲜的维持培养液,加入CCK-8溶液于28℃下孵育2h,测各孔在波长450nm处的吸光值,实验重复三次取平均值。计算每个孔的细胞存活率(细胞存活率=[(实验孔-空白孔)/(对照孔-空白孔)),使用GraphPad Prism计算药物的半数致死浓度CC50。
如图1所示,实验条件下达匹维林的CC50为8.0μM,2μM达匹维林对细胞活性无明显影响。
3.细胞活力检测达匹维林对FHM的保护作用
Cell Counting Kit-8用于检测达匹维林处理下对病毒感染后的FHM细胞活性。将处于对数增长期的FHM细胞悬液以每孔100μl接种于96孔板中,于28℃下培养24h至80-90%的细胞覆盖密度,更换含有不同浓度(0.1、0.5、1、1.5、2μM)达匹维林和101.5TCID50的VHSV的维持培养液。以0.05%的DMSO作为阴性对照并每组设置4个复孔,28℃下孵育48h。随后更换100μl新鲜的维持培养液,加入CCK-8溶液于28℃下孵育2h,测各孔在波长450nm处的吸光值,实验重复三次取平均值。计算每个孔的细胞存活率(细胞存活率=[(实验孔-空白孔)/(对照孔-空白孔)),使用GraphPad Prism计算药物的半数最大效应浓度EC50。
如图2所示,实验条件下达匹维林的EC50为0.91±0.05μM,1.5μM和2μM达匹维林完全抑制了VHSV对细胞活性的影响。
实施例2 qRT-PCR检测达匹维林的抗VHSV活性研究
1.药物处理
将处于对数增长期的FHM细胞制成悬液,以每孔1ml接种于12孔板中,于28℃下培养24h至80-90%的细胞覆盖密度,更换新鲜的维持培养液,随后以4种不同的药物处理方式检测达匹维林的抗VHSV能力。
(1)药物在病毒感染前加入细胞
向细胞维持培养液中加入浓度为2μM的达匹维林,在28℃下共同孵育4h,随后接种终浓度为101.5TCID50的VHSV,在28℃下共同孵育24h和36h后,使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%的DMSO作为阴性对照,8μM的病毒唑(Ribavirin)作为阳性对照。
(2)药物与病毒共同加入细胞
向细胞维持培养液中加入浓度为2μM的达匹维林与101.5TCID50的VHSV,在28℃下共同孵育24h和36h后,使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%的DMSO作为阴性对照,8μM的病毒唑作为阳性对照。
(3)药物在病毒感染后加入细胞
向细胞维持培养液中接种101.5TCID50的VHSV,在28℃下共同孵育4h,随后加入浓度为2μM的达匹维林,在28℃下共同孵育24h和36h后,使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%的DMSO作为阴性对照,8μM的病毒唑作为阳性对照。
(4)药物与病毒共同孵育后加入细胞
先制备达匹维林终浓度为58μM和101.5TCID50 VHSV的混合液,置于4℃下共同孵育4h。随后将混合液加入细胞维持培养液中,使达匹维林终浓度为2μM,VHSV为101.5TCID50。在28℃下共同孵育24h和36h后,使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%DMSO病毒孵育浓度作为阴性对照,0.44mM病毒唑的病毒孵育浓度作为阳性对照。
2.RNA提取
实验采用TriZol法提取细胞总RNA。将收集到的细胞悬液1300rmp室温离心3min,去上清,加入300μl TriZol溶液,室温放置5min;加入60μl氯仿,震荡混匀,室温放置10min,13000rmp下4℃离心15min;取上清于新无RNA酶离心管中,加入等量的异丙醇,轻轻混匀,室温放置10min,13000rmp下4℃离心15min;去上清,加入700μl EDTA水配置的75%乙醇,7500rmp下4℃离心5min;去上清,室温晾干RNA沉淀10min;用8μl无核酸水溶解RNA沉淀,即得细胞总RNA。
3.cDNA合成
实验采用GoScriptTM反转录试剂盒进行RNA反转录。反应体系如下:先制备含4μlReaction Buffer和2μl Enzyme Mix的预混液,加入总量不超过5μg的RNA模板,用无核酸水补齐至20μl。逆转录反应程序如下:20μl反应体系在42℃反应20min;95℃反应5min,4℃保存,即得cDNA。
4.实时荧光定量PCR
实验采用Promega GoTaqTM qPCR试剂盒进行。反应体系如下:5μl qPCR Mix(2×)、0.5μl上游引物(10μM)、0.5μl下游引物(10μM)、1μl cDNA模板,加3μl水补足至10μl。实验检测的目标基因为VHSV,并以FHM的β-actin作为内参基因。所用的引物序列如下(均为5’-3’方向表示):
VHSV-QPCR-F:AACTGTCTCCAAAGAAGTGTGT
VHSV-QPCR-R:GCCATCAAGGAGATAATGTG
FHMβ-actin-F:GCCGTGACCTGACTGACTACCT
FHMβ-actin-R:GGATACCGCAAGACTCCATACC
扩增反应条件为:95℃预变性10min;40个循环:95℃变性15sec,55℃退火15sec,72℃延伸15sec。反应完成后,以阴性对照作为参照,使用2-△△Ct的方法计算实验组和阳性对照组VHSV基因的相对表达量。
如图3所示,在四种处理下达匹维林均表现出显著的抗VHSV效果,细胞内的病毒量均显著降低。
实施例3qRT-PCR检测达匹维林对VHSV感染过程的影响研究
1.药物处理
将处于对数增长期的FHM细胞制成悬液,以每孔1ml接种于12孔板中,于28℃下培养24h至80-90%的细胞覆盖密度,更换新鲜的维持培养液,随后进行4种不同的药物处理方式探究达匹维林对VHSV感染过程的影响。
(1)检测达匹维林预处理细胞对VHSV感染的影响
向维持培养液中加入终浓度为2μM的达匹维林,在28℃下孵育4h,随后弃去培养液,PBS洗3次;加入含101.8TCID50 VHSV的维持培养液,在28℃下孵育4h,随后弃去培养液,PBS洗3次,加入新鲜的维持培养液,在28℃下孵育20h。使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%的DMSO作为阴性对照,16μM的病毒唑作为对照。
(2)检测达匹维林对VHSV吸附的影响
先将FHM置于4℃中预冷10min,向维持培养液中加入终浓度为2μM的达匹维林和101.8TCID50 VHSV,4℃下共同孵育2h;随后弃去培养液,PBS洗3次,加入新鲜的维持培养液,在28℃下孵育22h。使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%的DMSO作为阴性对照,16μM的病毒唑作为对照。
(3)检测达匹维林对VHSV内吞的影响
先将FHM置于4℃中预冷10min,向维持培养液中加入101.8TCID50 VHSV,4℃下共同孵育2h;随后弃去培养液,PBS洗3次,加入含终浓度为2μM达匹维林的维持培养液,在28℃下孵育2h;弃去培养液,PBS洗3次,加入新鲜的维持培养液,在28℃下孵育20h。使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%的DMSO作为阴性对照,16μM的病毒唑作为对照。
(4)检测达匹维林对VHSV复制的影响
向维持培养液中加入101.8TCID50 VHSV,28℃下共同孵育4h;随后弃去培养液,PBS洗3次,加入含终浓度为2μM达匹维林的维持培养液,在28℃下孵育4h。使用0.25%的胰蛋白酶消化并收集细胞于无RNA酶离心管中。以0.05%的DMSO作为阴性对照,16μM的病毒唑作为对照。
2.RNA提取、cDNA合成、实时荧光定量PCR操作同实施例2。
如图5所示,在VHSV感染前、吸附、内吞以及胞内复制过程中,加入达匹维林处理,均能够对一定时间后细胞内的病毒基因表达量产生显著的抑制。
Claims (2)
1.达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用。
2.达匹维林在制备抑制鱼类病毒性出血性败血症病毒对FHM细胞感染的药物中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911270520.3A CN110946866B (zh) | 2019-12-12 | 2019-12-12 | 达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911270520.3A CN110946866B (zh) | 2019-12-12 | 2019-12-12 | 达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110946866A CN110946866A (zh) | 2020-04-03 |
CN110946866B true CN110946866B (zh) | 2020-12-15 |
Family
ID=69981127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911270520.3A Expired - Fee Related CN110946866B (zh) | 2019-12-12 | 2019-12-12 | 达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110946866B (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010037402A1 (en) * | 2008-10-02 | 2010-04-08 | Dako Denmark A/S | Molecular vaccines for infectious disease |
CN104710529A (zh) * | 2015-04-15 | 2015-06-17 | 中国海洋大学 | 一种抗鱼类病毒性出血性败血症病毒的单链抗体 |
CN109195633A (zh) * | 2016-02-12 | 2019-01-11 | 西普拉有限公司 | 包含抗逆转录病毒药物和药代动力学增效剂的药物组合物 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8933075B2 (en) * | 2010-06-17 | 2015-01-13 | Fuzians Biomedicals, Inc. | Compounds useful as antiviral agents, compositions, and methods of use |
-
2019
- 2019-12-12 CN CN201911270520.3A patent/CN110946866B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010037402A1 (en) * | 2008-10-02 | 2010-04-08 | Dako Denmark A/S | Molecular vaccines for infectious disease |
CN104710529A (zh) * | 2015-04-15 | 2015-06-17 | 中国海洋大学 | 一种抗鱼类病毒性出血性败血症病毒的单链抗体 |
CN109195633A (zh) * | 2016-02-12 | 2019-01-11 | 西普拉有限公司 | 包含抗逆转录病毒药物和药代动力学增效剂的药物组合物 |
Non-Patent Citations (3)
Title |
---|
Discovery of dapivirine, a nonnucleoside HIV-1 reverse transcriptase inhibitor, as a broad-spectrum antiviral against both influenza A and B viruses;Yanmei Hu等;《Antiviral Research》;20170802;第145卷;103-113 * |
Polymeric Nanoparticles Affect the Intracellular Delivery, Antiretroviral Activity and Cytotoxicity of the Microbicide Drug Candidate Dapivirine;José das Neves等;《Pharm Res》;20111110;第29卷;1468-184 * |
Turbot (Scophthalmus maximus) vs. VHSV (Viral Hemorrhagic Septicemia Virus): A Review;Patricia Pereiro等;《Frontiers in Physiology》;20160526;第7卷;1-10 * |
Also Published As
Publication number | Publication date |
---|---|
CN110946866A (zh) | 2020-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN115040517B (zh) | 石蒜碱在防治svcv感染中的应用 | |
US11999806B2 (en) | Broad-spectrum polypeptide against enterovirus and application thereof | |
CN113181154A (zh) | Egta用于预防或治疗非洲猪瘟的新用途 | |
CN115040511A (zh) | Esi-09在防治gcrv感染中的应用 | |
CN111803494B (zh) | 褪黑素在制备抗肠道病毒药物中的应用 | |
Wang et al. | Synthesis and application of a potential therapeutic coumarin derivative against IHNV in aquaculture | |
CN110946866B (zh) | 达匹维林在制备抑制鱼类病毒性出血性败血症病毒对细胞感染的药物中的应用 | |
CN111265521B (zh) | 小分子化合物sjb2-043作为抑制马立克氏病毒药物的新用途 | |
CN109045011B (zh) | 酪氨酸激酶抑制剂在制备抗基孔肯雅病毒药物中的应用 | |
CN115770245A (zh) | 双苄基异喹啉生物碱在制备防治非洲猪瘟病毒药物中的应用 | |
Hudson et al. | The efficacy of amantadine and other antiviral compounds against two salmonid viruses in vitro | |
CN115837025A (zh) | 盐酸小檗胺在制备预防或治疗非洲猪瘟的药物中的应用 | |
CN113456817B (zh) | 抗rna病毒药物的dhodh抑制剂及其应用 | |
CN115025117A (zh) | 镁离子在防治水生病毒感染中的应用 | |
CN117205213B (zh) | 白鲜碱在制备鱼类病毒性神经坏死病药物中的用途 | |
CN117298096B (zh) | 异土木香内酯在抗大口黑鲈虹彩病毒活性中的应用 | |
CN114869883B (zh) | Esi-09在防治svcv感染中的应用 | |
CN112920194B (zh) | 一种色烯类含氟功能基团的香豆素类衍生物及其制备方法和应用 | |
CN111317739A (zh) | 依托红霉素在制备特异性抑制病毒感染的药物中的用途 | |
CN113521063B (zh) | α-硫辛酸在抗鱼类病毒性出血性败血症病毒感染方面的应用 | |
CN116115610B (zh) | 一种小分子抑制剂bci121在鱼类抗病毒中的应用 | |
CN112294806B (zh) | 1-甲酰基-β-咔啉衍生物用于制备抗新城疫病毒药物的应用 | |
WO2012006946A1 (zh) | 抗wssv和/或tsv的核酸药物 | |
CN111166737B (zh) | 芒果苷的应用 | |
CN113559096A (zh) | 褪黑素在直接抑制柯萨奇病毒b组3型药物制备中的应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |