CN116622705A - circRNA for regulating CVB5 replication and application thereof - Google Patents
circRNA for regulating CVB5 replication and application thereof Download PDFInfo
- Publication number
- CN116622705A CN116622705A CN202310313659.1A CN202310313659A CN116622705A CN 116622705 A CN116622705 A CN 116622705A CN 202310313659 A CN202310313659 A CN 202310313659A CN 116622705 A CN116622705 A CN 116622705A
- Authority
- CN
- China
- Prior art keywords
- circrna
- cvb5
- replication
- expression
- cells
- 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.)
- Pending
Links
- 241000709711 Coxsackievirus B5 Species 0.000 title claims abstract description 45
- 230000010076 replication Effects 0.000 title claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 title abstract description 6
- 230000014509 gene expression Effects 0.000 claims abstract description 32
- 208000015181 infectious disease Diseases 0.000 claims abstract description 18
- 230000002018 overexpression Effects 0.000 claims description 9
- 230000002401 inhibitory effect Effects 0.000 claims description 7
- 239000013598 vector Substances 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 239000002773 nucleotide Substances 0.000 claims description 4
- 125000003729 nucleotide group Chemical group 0.000 claims description 4
- 208000020061 Hand, Foot and Mouth Disease Diseases 0.000 claims description 3
- 208000025713 Hand-foot-and-mouth disease Diseases 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 231100000673 dose–response relationship Toxicity 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 abstract description 6
- 230000009385 viral infection Effects 0.000 abstract description 5
- 201000010099 disease Diseases 0.000 abstract description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 4
- 241000700605 Viruses Species 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 230000001419 dependent effect Effects 0.000 abstract description 2
- 208000005678 Rhabdomyoma Diseases 0.000 abstract 1
- 230000003828 downregulation Effects 0.000 abstract 1
- 230000003211 malignant effect Effects 0.000 abstract 1
- 210000001161 mammalian embryo Anatomy 0.000 abstract 1
- 238000011285 therapeutic regimen Methods 0.000 abstract 1
- 108091028075 Circular RNA Proteins 0.000 description 22
- 210000004027 cell Anatomy 0.000 description 21
- 238000011529 RT qPCR Methods 0.000 description 7
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 238000003559 RNA-seq method Methods 0.000 description 5
- 208000036142 Viral infection Diseases 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 101710197658 Capsid protein VP1 Proteins 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 102000014150 Interferons Human genes 0.000 description 2
- 108010050904 Interferons Proteins 0.000 description 2
- 108700026244 Open Reading Frames Proteins 0.000 description 2
- 101710106388 Structural protein VP1 Proteins 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229940079322 interferon Drugs 0.000 description 2
- 239000006166 lysate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 108091070501 miRNA Proteins 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000029812 viral genome replication Effects 0.000 description 2
- 238000001262 western blot Methods 0.000 description 2
- 101710132601 Capsid protein Proteins 0.000 description 1
- 108091026815 Competing endogenous RNA (CeRNA) Proteins 0.000 description 1
- 241000709661 Enterovirus Species 0.000 description 1
- 108060002716 Exonuclease Proteins 0.000 description 1
- 101710088172 HTH-type transcriptional regulator RipA Proteins 0.000 description 1
- 208000009525 Myocarditis Diseases 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 241000709664 Picornaviridae Species 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 101710118046 RNA-directed RNA polymerase Proteins 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- 108091023045 Untranslated Region Proteins 0.000 description 1
- 101710108545 Viral protein 1 Proteins 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008827 biological function Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 239000013592 cell lysate Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000002247 constant time method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 241001493065 dsRNA viruses Species 0.000 description 1
- 206010014599 encephalitis Diseases 0.000 description 1
- 102000013165 exonuclease Human genes 0.000 description 1
- 239000013613 expression plasmid Substances 0.000 description 1
- 239000013604 expression vector Substances 0.000 description 1
- 230000007236 host immunity Effects 0.000 description 1
- 229940088592 immunologic factor Drugs 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 210000004962 mammalian cell Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002679 microRNA Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000030194 mouth disease Diseases 0.000 description 1
- 108091027963 non-coding RNA Proteins 0.000 description 1
- 102000042567 non-coding RNA Human genes 0.000 description 1
- 239000013600 plasmid vector Substances 0.000 description 1
- 238000010814 radioimmunoprecipitation assay Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000001890 transfection Methods 0.000 description 1
- 239000012096 transfection reagent Substances 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
- C12N15/1131—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing against viruses
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/85—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/50—Physical structure
- C12N2310/53—Physical structure partially self-complementary or closed
- C12N2310/532—Closed or circular
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2320/00—Applications; Uses
- C12N2320/30—Special therapeutic applications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2320/00—Applications; Uses
- C12N2320/30—Special therapeutic applications
- C12N2320/32—Special delivery means, e.g. tissue-specific
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2330/00—Production
- C12N2330/50—Biochemical production, i.e. in a transformed host cell
- C12N2330/51—Specially adapted vectors
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2800/00—Nucleic acids vectors
- C12N2800/10—Plasmid DNA
- C12N2800/106—Plasmid DNA for vertebrates
- C12N2800/107—Plasmid DNA for vertebrates for mammalian
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Genetics & Genomics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Virology (AREA)
- Physics & Mathematics (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Plant Pathology (AREA)
- Biophysics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oncology (AREA)
- Communicable Diseases (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
The invention discloses circRNA for regulating and controlling CVB5 replication and application thereof, and relates to the technical field of gene biology. The invention discloses a circRNA, which is the circRNA002006, and a sequence table is shown as SEQ ID NO.1; according to the invention, through analyzing the expression profile of the circRNA of CVB5 infected human malignant embryo rhabdomyoma cells (RD), the circRNA002006 is subjected to down-regulation expression in virus infected cells and is dependent on virus infection time and dose; meanwhile, the circRNA002006 can obviously inhibit CVB5 replication; furthermore, circRNA002006 may activate the expression of interferon-stimulating factors (ISGs). The present invention has found that there is a circRNA (circRNA 002006) that significantly inhibits CVB5 replication, thereby providing a new therapeutic regimen for diseases of CVB5 infection.
Description
Technical Field
The invention relates to the technical field of gene biology, in particular to a circRNA for regulating and controlling CVB5 replication and application thereof.
Background
Coxsackie virus B5 (CVB 5) belongs to group B enteroviruses of the family Picornaviridae, which is a non-enveloped single positive-strand RNA virus. The CVB5 genome is about 7.4kb in length and comprises two untranslated regions and an Open Reading Frame (ORF), which can encode a 2,194 amino acid multimeric protein precursor, which is further hydrolyzed by the viral self-encoded protease into three precursor proteins (P1, P2 and P3). CVB5 is involved in outbreaks and epidemic of hand-foot-and-mouth disease, and can cause serious diseases such as aseptic encephalitis, myocarditis, diabetes and the like, and the incidence rate of children under 5 years old is highest, and the diseases are frequently sent out in Yu Xiaqiu seasons. However, currently, no approved vaccine and specific drugs against CVB5 infection are available.
Circular RNA (circRNA) is a particular endogenous non-coding RNA found in recent years and is widely found in mammalian cells. Unlike linear RNA structures, circRNA is a class of covalently closed circular RNA molecules that lack a bondable non-coding end and are not easily degraded by exonucleases, thus having greater stability. The circRNA can be used as competitive endogenous RNA (competing endogenous RNA, ceRNA) for capturing miRNA, can regulate alternative splicing and gene expression, can be used as a scaffold for assembling to form a protein complex, and can also be used for encoding the protein and acting as a regulator of rRNA and tRNA biosynthesis and play roles in various biological processes of cells. Studies have shown that circRNA plays an important role in viral infection and host immunity, and we have therefore deeply mined the function of circRNA after CVB5 infection.
Disclosure of Invention
The invention aims to provide the circRNA for regulating CVB5 replication, which is the circRNA002006 with the function of remarkably inhibiting CVB5 replication, and can provide a new treatment scheme for diseases infected by CVB 5.
In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme:
a circRNA, which is circRNA002006; the nucleotide sequence and splice site of the circRNA are shown in SEQ ID NO. 1.
It is another object of the present invention to provide a circRNA inhibiting CVB5 replication, wherein the circRNA is the circRNA002006 described above.
Further, the circRNA down-regulates expression in CVB 5-infected RD cells.
Further, the circRNA expression was dose dependent with CVB5 infection time.
It is another object of the present invention to provide an overexpression vector sequence of circRNA002006, the sequence of which is shown in SEQ ID NO. 2.
It is another object of the invention to provide the use of circRNA002006 for the preparation of a product for the prevention or treatment of CVB 5.
Furthermore, the product for preventing or treating CVB5 is a hand-foot-and-mouth disease preventing or treating drug.
The invention has the beneficial effects that:
the invention discloses a circRNA, which is circRNA002006, wherein after the circRNA002006 is overexpressed in cells, the replication level of CVB5 is obviously reduced compared with that in control cells, namely, the circRNA002006 provided by the invention has the effect of inhibiting CVB5 virus replication;
the circRNA002006 provided in the present invention regulates the expression of antiviral immune factor ISGs.
The circRNA002006 provided by the invention plays a role in inhibiting CVB5 replication through an interferon pathway, and can be used for preventing or treating hand-foot-mouth disease.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
FIG. 1 is a graph showing the difference in the expression level of candidate circRNA between CVB5 infection group and blank control group (left: RNA-seq sequencing result; right: qRT-PCR detection result) according to the embodiment of the present invention;
FIG. 2is a graph showing the expression results of CVB5 infection with different doses of circRNA002006 according to the examples of the present invention;
FIG. 3 is a graph showing the results of expression of circRNA002006 at different times during CVB5 infection according to the examples of the present invention;
FIG. 4 is a schematic diagram of a circRNA002006 over-expression plasmid vector according to an embodiment of the present invention;
FIG. 5 is a graph showing the results of significantly inhibiting the expression level of CVB5 structural protein VP1 after overexpression of circRNA002006 according to the examples of the present invention;
FIG. 6 is a graph showing the results of activating ISGs expression after the overexpression of circRNA002006 according to the embodiment of the invention.
Detailed Description
In order to more clearly describe the technical scheme of the embodiment of the present invention, the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The medicines, reagents, instruments, equipment and the like used in the invention can be purchased through commercial approaches unless otherwise specified, and the related experimental methods are all conventional experimental operations in the field or carried out according to the product specifications of the corresponding reagents.
In the early research of the invention, RNA-SEQ analysis is carried out after CVB5 infects RD cells, and the circRNA002006 is screened, and the nucleotide sequence is shown as SEQ ID No.1; to investigate the potential biological functions of circRNA002006, circRNA002006 was overexpressed in cells and the effect of circRNA002006 on viral replication and its mechanism was examined.
The cells and viruses used in the invention are preserved in a laboratory, and the circRNA002006 over-expression vector is synthesized by itself.
The sequence of the circRNA primer related to the invention is shown in table 1, and the sequence of the ISGs primer is shown in table 2;
the map of the circRNA002006 overexpression vector is shown in FIG. 4.
TABLE 1circRNA primer sequences
TABLE 2ISGs primer sequences
Example 1
Screening and characterization of circRNA002006
Analysis of the expression profile of circRNA after CVB5 infection RD
The invention adopts RNA-seq to analyze the expression quantity of the circRNA in the CVB5 infected group and the blank control group, and the RNA-seq result of the circRNA is provided by Beijing NodeB source technology Co. According to the RNA sequencing result, 6 circRNAs are selected for experimental verification.
Expression of circRNA002006
After 24h of CVB5 infection of RD cells, the cell pellet is collected and total RNA is extracted with TRIzol reagent. The qRT-PCR method is used for verifying the expression condition of the selected 6 circRNAs, and the data are analyzed by a 2-delta CT method. Wherein, the expression level of the circRNA002006 is down-regulated, and the RNA-seq is consistent with the qRT-PCR detection result. The nucleotide sequence of the circRNA002006 is shown in SEQ ID NO. 1.
The expression profile of circRNA002006 is associated with CVB5 infection
The above results indicate that the expression of circRNA002006 is closely related to CVB5 infection, and thus the relationship of circRNA002006 expression to CVB5 infection was further examined using qRT-PCR. After RD cells were infected with CVB5 at different MOI (0,0.01,0.1,1,5) for 24h, cell pellet was collected, total RNA was extracted with TRIzol reagent, and expression of circRNA002006 was detected by qRT-PCR method. As shown in FIG. 2, expression of circRNA002006 correlated positively with viral infection dose. After infection of RD cells with 1MOI CVB5, cell pellets were collected at 0h,6h,12h,24h and 36h, respectively, total RNA was extracted with TRIzol reagent, and expression of circRNA002006 was detected by qRT-PCR. As shown in FIG. 3, expression of circRNA002006 was positively correlated with viral infection time. Taken together, circRNA002006 expression is dependent on CVB5 infection dose and infection time, and circRNA002006 plays an important role in CVB5 infection.
Example 2
Functional study of circRNA002006
1. Construction of the circRNA002006 overexpression vector
Based on the sequence of circRNA002006 (SEQ ID No. 1), pcDNA3.1 plasmid vector containing the circRNA002006 sequence, namely pcDNA3.1-circRNA002006-2Flag vector, was constructed (map is shown in FIG. 4). Wherein, ecoRI and BamHI are inserted into the circRNA002006 region.
2. Cell transfection
RD cells in the logarithmic growth phase are inoculated into a 6cm cell culture dish, and when about 60-70% of the cells are grown,
the empty control group (pcDNA3.1) and the overexpressing circRNA002006 group (pcDNA3.1-circRNA 002006-2 Flag) were transfected with the Transindm EL transfection reagent, respectively, and incubated in a 5% CO2 cell incubator at 37℃for 24h.
3. Viral infection
Transfected cells were infected with CVB524h at an infectious dose of 1 MOI.
Western Blot detection of CVB5 VP1 expression
The cells were washed twice with PBS, and RIPA lysate (1 XPMSF, 1 Xphosphatase lysate) was added to collect the cell lysate. The expression of structural protein VP1 of CVB5 was detected by Western Blot experiments.
The results indicate that circRNA002006 significantly inhibited CVB5 replication (as shown in fig. 5).
Example 3
circRNA002006 promotes ISGs expression
The cells were washed twice with PBS and the TRIzol reagent extracted total RNA from the cells. ISGs expression was detected by qRT-PCR.
The results indicate that circRNA002006 overexpression significantly induced ISGs expression (as shown in fig. 6), suggesting that circRNA002006 functions through the interferon pathway.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. A circRNA, characterized in that: the circRNA is the circRNA002006, and the nucleotide sequence and the splice site of the circRNA are shown in SEQ ID NO. 1.
2. A circRNA that inhibits CVB5 replication, characterized in that: the circRNA is the circRNA002006 of claim 1.
3. A circRNA inhibiting CVB5 replication according to claim 2 where: the circRNA down-regulates expression in CVB 5-infected RD cells.
4. A circRNA inhibiting CVB5 replication according to claim 2 where: the circRNA expression was dose dependent with CVB5 infection time.
An overexpression vector sequence of circrna002006, characterized in that: the sequence is shown as SEQ ID NO. 2.
Use of circrna002006 for the preparation of a product for the prevention or treatment of CVB 5.
7. The use of circRNA002006 according to claim 6 for the preparation of a product for the prevention or treatment of CVB5, wherein: the product for preventing or treating CVB5 is a hand-foot-and-mouth disease preventing or treating drug.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310313659.1A CN116622705A (en) | 2023-03-28 | 2023-03-28 | circRNA for regulating CVB5 replication and application thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310313659.1A CN116622705A (en) | 2023-03-28 | 2023-03-28 | circRNA for regulating CVB5 replication and application thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116622705A true CN116622705A (en) | 2023-08-22 |
Family
ID=87596181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310313659.1A Pending CN116622705A (en) | 2023-03-28 | 2023-03-28 | circRNA for regulating CVB5 replication and application thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN116622705A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116064531A (en) * | 2022-09-07 | 2023-05-05 | 昆明理工大学 | Long-chain non-coding RNA for inhibiting CVB5 virus replication and application thereof |
-
2023
- 2023-03-28 CN CN202310313659.1A patent/CN116622705A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116064531A (en) * | 2022-09-07 | 2023-05-05 | 昆明理工大学 | Long-chain non-coding RNA for inhibiting CVB5 virus replication and application thereof |
CN116064531B (en) * | 2022-09-07 | 2024-04-02 | 昆明理工大学 | Long-chain non-coding RNA for inhibiting CVB5 virus replication and application thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11235011B2 (en) | Use of alphavirus in preparation of antitumor drugs | |
AU2014215025B2 (en) | Cell lines for virus production and methods of use | |
Shu et al. | Regulation of molecular chaperone GRP78 by hepatitis B virus: control of viral replication and cell survival | |
CN116622705A (en) | circRNA for regulating CVB5 replication and application thereof | |
CN112353939B (en) | Application of GTPBP4 protein as immunosuppressant and construction of cell line for knocking down or over expressing GTPBP4 | |
Zheng et al. | Fish TRIM21 exhibits antiviral activity against grouper iridovirus and nodavirus infection | |
Luo et al. | CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway | |
Zhu et al. | Comparative proteomic analysis of wild-type and SAP domain mutant foot-and-mouth disease virus-infected porcine cells identifies the ubiquitin-activating enzyme UBE1 required for virus replication | |
CN112336708B (en) | Application of tiralatrock in treating coxsackie virus infection | |
CN115779084B (en) | Application of preparation for activating TUSC1 gene expression of pigs in preparation of anti-pseudorabies virus infection medicines of pigs | |
CN103215267B (en) | Suppress siRNA and its application of influenza virus related gene | |
Zhou et al. | Molecular cloning, functional characterization and expression analysis of P65 subunit in response to GCRV infection in rare minnow (Gobiocypris rarus) | |
CN101979556B (en) | Small interfering ribose nucleic acid (siRNA) targeting molecule and application thereof | |
Meng et al. | Chicken speckle-type POZ protein (SPOP) negatively regulates MyD88/NF-κB signaling pathway mediated proinflammatory cytokine production to promote the replication of Newcastle disease virus | |
CN116059371B (en) | Application of preparation for activating VASH gene expression of pig in preparation of medicine for resisting pseudorabies virus infection of pig | |
CN104740634A (en) | Application of miR-93 and inhibitor thereof in preparation of anti-virus infection medicines | |
Lu et al. | The effect of lncRNA‐PVT1 on liver cancer rats by regulating the expression of MMP9 | |
CN115948353B (en) | Application of E3 ubiquitin ligase TRIM21 in preparation of medicines for preventing or treating novel coronaviruses | |
CN116064557B (en) | Application of preparation for activating OGFOD gene expression of pig in preparation of medicine for resisting pseudorabies virus infection of pig | |
WO2021212892A1 (en) | Broad-spectrum antiviral drug and use thereof | |
CN114452374A (en) | Application of ubiquitin-binding protein UBXN7 in preparation of anti-HBV drugs | |
Gu et al. | Structural features and antiviral function of the MDA5 gene in ducks (Anas platyrhynchos) | |
CN104830905A (en) | Iba1 and LAG-3 dual-gene co-expression recombinant adenovirus vector and preparation method and application thereof | |
CN105770858B (en) | Human obesity inhibitory peptide | |
Sun et al. | MicroRNA-32-5p promotes the proliferation and metastasis of gastric cancer cells |
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 |