The aim of this study was to construct the recombinant adenovirus carrying human TIMP-1shRNA gene expression system for preliminary identification to lay the foundation for the further study of gene therapy.
We investigated the effects of alpha-fetoprotein (AFP) gene silencing on Survivin expression in HepG2 cells. Small interfering RNA technology was used to downregulate AFP expression in HepG2 cells. An enzyme-linked immunosorbent assay was used to measure AFP concentration in the supernatant before and after transfection. An MTT assay was used to detect cell proliferation activity before and after transfection.
We investigated the effect of p38MAPK/AP-1 (activator protein-1) signaling on the apoptosis of osteoblasts induced by high glucose. A lentivirus vector of small hairpin RNA (shRNA) targeting p38MAPK was constructed in vitro. Osteoblasts MC3T3-E1 cultured in vitro were treated with vehicle, high glucose, p38MAPK-shRNA transfection, p38MAPK inhibitor, and unrelated shRNA transfection.
This study aimed to investigate the inhibition of vascular endothelial growth factor (VEGF) by small hairpin RNA (shRNA) interference combined with radiotherapy on the growth of cervical cancer SiHa cell xenografts in nude mice. The effective pVEGF-shRNA plasmid was screened by reverse transcription-polymerase chain reaction (RT-PCR), and the cell apoptosis rate was estimated by flow cytometry. A nude mouse cervical xenograft model was established and all models were divided into four groups: blank control, VEGF shRNA, radiotherapy, and combined treatment.
In this study, chicken adipocytes were cultured to evaluate RNA interference by the leptin receptor gene. A small interfering RNA of the leptin receptor gene was synthesized, with a suppression rate of 60% being generated (P peroxisome proliferator-activated receptor γ, fatty acid synthase, adipose triglyceride lipase, and lipoprotein lipase. In addition, a significant increase in the expression of the adiponectin gene was documented.
Neural tissue-specific epidermal growth factor-like repeat domain-containing protein (NELL2) was previously found to play an important role in nerve growth, neural differentiation, neural elasticity, synaptic transport, and vesicle release. In this study, we examined the effect of NELL2 on gonadotropin-releasing hormone (GnRH) neurons and the initiation of puberty in female rats.
Amylose and amylopectin are the 2 major components of plant storage starch. The rice starch branching enzyme (RBE) plays an important role in the starch components of rice. In the present study, we selected a specific 195-bp segment from the RBE3 gene to construct hairpin DNA, which was driven by an endosperm-specific high molecular weight glutenin promoter to regulate the biosynthesis of starch. An RNA interference plasmid for the RBE3 gene was constructed to form double-stranded RNA.
Parathyroid hormone-related protein (PTHrP) is a protein member of the parathyroid hormone family that regulates the dynamic balance between blood and bone calcium during lactation. However, the mechanism of its regulation is not very clear. In order to establish a framework for further functional studies of the PTHrP gene in goat mammary gland epithelial cells during the lactation period, PTHrP cDNA was isolated from Xinong Saanen dairy goats. Its coding sequence is 534 bp in size.
Cellulases are pathogenic substances suspected to be responsible for the development of the early symptoms of nematode disease. The pine wood nematode, Bursaphelenchus xylophilus (Parasitaphelenchidae), is the causal agent of pine wilt disease, which kills millions of pine trees. We used RNA interference (RNAi), a reverse genetic tool, to analyze the function of the endo-β-1,4-glucanase gene of B. xylophilus, which causes the most serious forest tree disease in China and the rest of eastern Asia.
Mechanisms controlling gene expression in trypanosomatids depend on several layers of regulation, with most regulatory pathways acting at a post-transcriptional level. Consequently, these parasites can follow the rapid changes associated with transitions between the insect vector and the mammalian host, with instant reprogramming of genetic expression.
