piggyBac transposon-derived targeting shRNA interference against the Bombyx mori nucleopolyhedrovirus (BmNPV). 2014

Fang Zhou, and Rui-ting Chen, and Yan Lu, and Shuang Liang, and Mei-xian Wang, and Yun-gen Miao
Key Laboratory of Animal Virology of Ministry of Agriculture, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, People's Republic of China.

The Bombyx mori nucleopolyhedrovirus (BmNPV) is one of the most destructive diseases in silkworm, which has caused the main damage to sericulture industry. In this study, we developed a system of RNAi to prevent the BmNPV infection using the piggyBac transposon-derived targeting short hairpin RNA (shRNA) interference. The shRNAs targeting the genes of i.e.-1, lef-1, lef-2 and lef-3 of BmNPV were designed and used to inhibit the intracellular replication or multiplication of BmNPV in Bm cells. The highest activity was presented in the shRNA targeting the i.e.-1c of BmNPV, of which the inhibition rate reached 94.5 % in vitro. Further a stable Bm cell line of piggyBac transposon-derived targeting shRNA interference against BmNPV was established, which has a highly efficacious suppression on virus proliferation. These results indicated that the recombinant shRNA expression system was a useful tool for resistance to BmNPV in vitro. The approach by recombinant shRNAs opens a door of RNAi technology as a strategy that offering technically simpler, cheaper, and quicker gene knockdown for promising research and biotechnology application on silkworm lethal diseases.

UI MeSH Term Description Entries
D004251 DNA Transposable Elements Discrete segments of DNA which can excise and reintegrate to another site in the genome. Most are inactive, i.e., have not been found to exist outside the integrated state. DNA transposable elements include bacterial IS (insertion sequence) elements, Tn elements, the maize controlling elements Ac and Ds, Drosophila P, gypsy, and pogo elements, the human Tigger elements and the Tc and mariner elements which are found throughout the animal kingdom. DNA Insertion Elements,DNA Transposons,IS Elements,Insertion Sequence Elements,Tn Elements,Transposable Elements,Elements, Insertion Sequence,Sequence Elements, Insertion,DNA Insertion Element,DNA Transposable Element,DNA Transposon,Element, DNA Insertion,Element, DNA Transposable,Element, IS,Element, Insertion Sequence,Element, Tn,Element, Transposable,Elements, DNA Insertion,Elements, DNA Transposable,Elements, IS,Elements, Tn,Elements, Transposable,IS Element,Insertion Element, DNA,Insertion Elements, DNA,Insertion Sequence Element,Sequence Element, Insertion,Tn Element,Transposable Element,Transposable Element, DNA,Transposable Elements, DNA,Transposon, DNA,Transposons, DNA
D005814 Genes, Viral The functional hereditary units of VIRUSES. Viral Genes,Gene, Viral,Viral Gene
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012831 Bombyx A genus of silkworm MOTHS in the family Bombycidae of the order LEPIDOPTERA. The family contains a single species, Bombyx mori from the Greek for silkworm + mulberry tree (on which it feeds). A native of Asia, it is sometimes reared in this country. It has long been raised for its SILK and after centuries of domestication it probably does not exist in nature. It is used extensively in experimental GENETICS. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p519) Bombyx mori,Silkmoths,Silkworms,Silkmoth,Silkworm,Bombyx morus,Bombyxs,mori, Bombyx
D014779 Virus Replication The process of intracellular viral multiplication, consisting of the synthesis of PROTEINS; NUCLEIC ACIDS; and sometimes LIPIDS, and their assembly into a new infectious particle. Viral Replication,Replication, Viral,Replication, Virus,Replications, Viral,Replications, Virus,Viral Replications,Virus Replications
D055785 Gene Knockdown Techniques The artificial induction of GENE SILENCING by the use of RNA INTERFERENCE to reduce the expression of a specific gene. It includes the use of DOUBLE-STRANDED RNA, such as SMALL INTERFERING RNA and RNA containing HAIRPIN LOOP SEQUENCE, and ANTI-SENSE OLIGONUCLEOTIDES. Gene Knock Down Techniques,Gene Knock Down,Gene Knock-Down,Gene Knock-Down Techniques,Gene Knockdown,Gene Knock Downs,Gene Knock-Down Technique,Gene Knock-Downs,Gene Knockdown Technique,Gene Knockdowns,Knock Down, Gene,Knock Downs, Gene,Knock-Down Technique, Gene,Knock-Down Techniques, Gene,Knock-Down, Gene,Knock-Downs, Gene,Knockdown Technique, Gene,Knockdown Techniques, Gene,Knockdown, Gene,Knockdowns, Gene,Technique, Gene Knock-Down,Technique, Gene Knockdown,Techniques, Gene Knock-Down,Techniques, Gene Knockdown
D017924 Nucleopolyhedroviruses Genera of the family BACULOVIRIDAE, characterized by the formation of crystalline, polyhedral occlusion bodies in the host cell nucleus. Nucleopolyhedrovirus is the common name for viruses from the Alphabaculovirus, Deltabaculovirus, or Gammabaculovirus genera. Deltabaculovirus,Nuclear Polyhedrosis Virus,Nucleopolyhedrovirus,Alphabaculovirus,Gammabaculovirus,Alphabaculoviruses,Deltabaculoviruses,Gammabaculoviruses,Nuclear Polyhedrosis Viruses,Polyhedrosis Virus, Nuclear,Polyhedrosis Viruses, Nuclear,Virus, Nuclear Polyhedrosis,Viruses, Nuclear Polyhedrosis
D034741 RNA, Small Interfering Small double-stranded, non-protein coding RNAs (21-31 nucleotides) involved in GENE SILENCING functions, especially RNA INTERFERENCE (RNAi). Endogenously, siRNAs are generated from dsRNAs (RNA, DOUBLE-STRANDED) by the same ribonuclease, Dicer, that generates miRNAs (MICRORNAS). The perfect match of the siRNAs' antisense strand to their target RNAs mediates RNAi by siRNA-guided RNA cleavage. siRNAs fall into different classes including trans-acting siRNA (tasiRNA), repeat-associated RNA (rasiRNA), small-scan RNA (scnRNA), and Piwi protein-interacting RNA (piRNA) and have different specific gene silencing functions. RNA, Scan,Repeat-Associated siRNA,Scan RNA,Small Scan RNA,Trans-Acting siRNA,siRNA,siRNA, Repeat-Associated,siRNA, Trans-Acting,Short Hairpin RNA,Short Interfering RNA,Small Hairpin RNA,Small Interfering RNA,scnRNA,shRNA,tasiRNA,Hairpin RNA, Short,Hairpin RNA, Small,Interfering RNA, Short,Interfering RNA, Small,RNA, Short Hairpin,RNA, Short Interfering,RNA, Small Hairpin,RNA, Small Scan,Repeat Associated siRNA,Scan RNA, Small,Trans Acting siRNA,siRNA, Repeat Associated,siRNA, Trans Acting

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