PATZ1 is required for efficient HIV-1 infection
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Cloning (programming)
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<p>Chemoresistance properties of MUC16 and effect of cisplatin on apoptosis of MUC16 knockdown cells. A & B, MUC16 knockdown (H1975-shMUC16 seq1 and 2) cells were highly sensitive to cisplatin (A) and gemcitabine (B). C, The percentage of apoptotic cells was significantly higher in MUC16 knockdown cells (H292-shMUC16) treated with 5μM cisplatin. In contrast, no significant change was observed in the untreated scramble (H292-SCR) and MUC16 knockdown cells. D, We performed stable knockdown of Muc16 in K1418, the result shows that Muc16 is significantly decreased as compared to scramble cells. E, The p53 target gene p21 was significantly increased in MUC16 knockdown (H292-shMUC16) cells. *P<0.05, **P<0.01, ***P<0.001, and NS non-significant.</p>
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RNA-mediated interference (RNAi) has become a promising biopesticide technology with which to direct sequence-specific gene knockdown of key targets in the potato psyllid (PoP) Bactericera cockerelli, resulting in significant mortality. In this study, three strategically selected target genes, ATF4, C7 and D24, essential for the biosynthesis and regulation of ecdysteroids, were evaluated for knockdown and mortality using oral delivery of individual, paired and all three double-stranded RNAs (dsRNAs), in five replicated experiments. Knockdown was determined as the fold-change in gene expression using a quantitative polymerase chain reaction.Knockdown of the D24 target, at 39%-45%, resulted in 51% PoP mortality by 10 days post-ingestion (dpi) of dsRNA. Knockdown of C7, at 38%-61%, resulted in 53% mortality by 10 dpi, whereas dsD24 ingestion resulted in 65% mortality by 10 dpi when dsD24 and dsC7 were co-delivered. Three phenotypes, INCOMEC, PREMEC and SWOLLEN, were observed at a frequency of 4%-12%, and are consistent with incomplete ecdysis in immature and/or adult PoP. Adult PoP exhibiting INCOMEC survived for several days but were unable to mate or fly, whereas SWOLLEN and PREMEC were lethal to the immature instars. Knockdown of ATF4 did not result in the mortality or malformations in immature and adult PoP.Compared with knockdown of individual D24 and C7 targets, significantly greater RNAi penetrance was achieved following delivery of combined dsRNAs. The highest knockdown that resulted in incomplete ecdysis and/or mortality was obtained for targets with predicted involvement in the same or interacting pathway(s). Knockdown of ATF4 was apparently "rescued" by uncharacterized compensatory gene(s) or effects. © 2022 Society of Chemical Industry.
Knockdown resistance
RNA Silencing
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<p>Chemoresistance properties of MUC16 and effect of cisplatin on apoptosis of MUC16 knockdown cells. A & B, MUC16 knockdown (H1975-shMUC16 seq1 and 2) cells were highly sensitive to cisplatin (A) and gemcitabine (B). C, The percentage of apoptotic cells was significantly higher in MUC16 knockdown cells (H292-shMUC16) treated with 5μM cisplatin. In contrast, no significant change was observed in the untreated scramble (H292-SCR) and MUC16 knockdown cells. D, We performed stable knockdown of Muc16 in K1418, the result shows that Muc16 is significantly decreased as compared to scramble cells. E, The p53 target gene p21 was significantly increased in MUC16 knockdown (H292-shMUC16) cells. *P<0.05, **P<0.01, ***P<0.001, and NS non-significant.</p>
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Abstract We used the maternal-Gal4 shRNA system to knock down expression of dKDM5/lid in Drosophila melanogaster embryos, and analyzed the efficacy of the knockdown by qRT-PCR. Although average relative expression of lid was significantly lower in knockdown conditions compared to the driver-only control, we observed a wide and overlapping range of relative gene expression between individual control and knockdown embryos.
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We established TDP-43-silenced primary cortical neurons using lentivirus. We compared TDP-43 and FUS transcriptome profiles in primary cortical neurons. The sets of genes with altered expression levels upon TDP-43 knockdown or FUS knockdown overlapped by >25%. The sets of genes with altered exon splicing upon TDP-43 knockdown or FUS knockdown overlapped by >9%.
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<p>Stable knockdown of TSPYL5 in lung cancer cells. A, MUC16 expression was significantly elevated in cisplatin resistant cell line. To determine the TSPYL5 role in lung cancer, we stably knocked down TSPYL5 in H292 cells. B, Upon TSPYL5 knockdown, the expression of p53 was increased as compared to scramble cells. C, Knockdown of TSPYL5 was also confirmed by QPCR analysis. β-actin was used as loading control. **P<0.01.</p>
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Recently, we showed that Mp1p is an important virulence factor of Talaromyces marneffei, a dimorphic fungus phylogenetically closely related to Aspergillus fumigatus. In this study, we investigated the virulence properties of the four Mp1p homologues (Afmp1p, Afmp2p, Afmp3p, and Afmp4p) in A. fumigatus using a mouse model. All mice died 7 days after challenge with wild-type A. fumigatus QC5096, AFMP1 knockdown mutant, AFMP2 knockdown mutant and AFMP3 knockdown mutant and 28 days after challenge with AFMP4 knockdown mutant (P<.0001). Only 11% of mice died 30 days after challenge with AFMP1-4 knockdown mutant (P<.0001). For mice challenge with AFMP1-4 knockdown mutant, lower abundance of fungal elements was observed in brains, kidneys, and spleens compared to mice challenge with QC5096 at day 4 post-infection. Fungal counts in brains of mice challenge with QC5096 or AFMP4 knockdown mutant were significantly higher than those challenge with AFMP1-4 knockdown mutant (P<.01 and P<.05). Fungal counts in kidneys of mice challenge with QC5096 or AFMP4 knockdown mutant were significantly higher than those challenge with AFMP1-4 knockdown mutant (P<.001 and P<.001) and those of mice challenge with QC5096 were significantly higher than those challenge with AFMP4 knockdown mutant (P<.05). There is no difference among the survival rates of wild-type A. fumigatus, AFMP4 knockdown mutant and AFMP1-4 knockdown mutant, suggesting that Mp1p homologues in A. fumigatus do not mediate its virulence via improving its survival in macrophage as in the case in T. marneffei. Afmp1p, Afmp2p, Afmp3p, and Afmp4p in combination are important virulence factors of A. fumigatus.
Virulence factor
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Hepatocellular carcinoma (HCC) accounts for approximately ninety percent of primary liver cancer. This study attempted to investigate the effects of the long noncoding RNA MIR100HG (MIR100HG) in HCC and the underlying molecular mechanism.
Viability assay
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