Colloids Surf B Biointerfaces
July 2023
Given that currently used classical chemotherapeutic drugs lack the ideal therapeutic effect and produce severe side effects, platinum nanomaterials (Pt-NMs) have gradually gained attention, and their antitumor effect has been initially explored. However, the specific mechanisms underlying the action of Pt-NMs in non-small cell lung cancer (NSCLC) cells remain unclear. Moreover, the interaction between Pt-NMs and autophagy in inducing apoptosis of NSCLC cells remains unexplored.
View Article and Find Full Text PDFIn order to explore the metabolic and ionic changes of hoof-deformed cows, the serum samples of 10 healthy cows (group C) and 10 hoof-deformed cows (group T) were analyzed by LC-MS/MS and ICP-OES/MS. The pathway enrichment of differential metabolites was analyzed by screening and identifying differential metabolites and ions and using a bioinformatics method. The integration of metabolomics and ionics was analyzed with ggplot2 software in R language, and verified by MRM target metabolomics.
View Article and Find Full Text PDFDisrupted osteoblastogenesis or aberrant activation of osteoclastogenesis usually results in the break of bone homeostasis thus causing bone-associated diseases like osteoporosis. Obacunone, as a natural compound present in citrus fruits, has been demonstrated for various biological activities including anti-cancer and anti-inflammatory properties. However, the role of obacunone in regulating osteoclastogenesis has not been elucidated so far.
View Article and Find Full Text PDFGrain size is an important trait that directly affects grain yield in rice; however, the genetic and molecular mechanisms regulating grain size remain unclear. In this study, we identified a mutant, grain length and grain weight 10 (glw10), which exhibited significantly reduced grain length and grain weight. Histological analysis demonstrated that GLW10 affects cell expansion, which regulates grain size.
View Article and Find Full Text PDFIntroduction: Hypoxia is a common pathological condition after spinal cord injury. Oestrogen-related receptor alpha (ERRα), as a key regulator of energy metabolism and mitochondrial functions, plays an important role in maintaining cell homeostasis. However, its role in hypoxic spinal microglia has not been fully elaborated.
View Article and Find Full Text PDFObjective: To investigate the effect of internal external fixator assisted O-arm navigation imaging in the treatment of unstable pelvic fractures.
Methods: From May 2019 to November 2019, 15 patients with unstable pelvic fractures were treated by intraoperative O-arm navigation imaging using INFIX technology. There were 6 males and 9 females.
In this work, the real tar was introduced into the circulating fluidized bed gasifier by pre-mixing tar and char. The effect of steam on the tar reforming characteristics at both 850 and 900 °C was investigated by combining the analysis of the rate of tar conversion, the change of tar content, and char physical structure. The test results indicated that steam could effectively promote the tar conversion.
View Article and Find Full Text PDFVerticillium wilt (VW), caused by soil-borne fungi of the genus Verticillium, is a serious disease affecting a wide range of plants and leading to a constant and major challenge to agriculture worldwide. Cotton (Gossypium hirsutum) is the world's most important natural textile fibre and oil crop. VW of cotton is a highly devastating vascular disease; however, few resistant germplasms have been reported in cotton.
View Article and Find Full Text PDFEnterovirus 71 (EV71) is the most virulent pathogen among enteroviruses that cause hand, foot and mouth disease in children but rarely in adults. The mechanisms that determine the age-dependent susceptibility remain largely unclear. Here, we found that the paucity of invariant natural killer T (iNKT) cells together with immaturity of the immune system was related to the susceptibility of neonatal mice to EV71 infection.
View Article and Find Full Text PDFBackground And Purpose: Systemic upregulation of inflammatory cytokines is characteristic of critical severe hand, foot, and mouth disease (HFMD) with pulmonary edema. Thus, immunomodulatory medicines such as steroids, including methylprednisolone, have been proposed to treat patients with severe HFMD in China, because it is postulated that inflammatory cytokines play a role in the development of severe complications. This study is to further investigate the inflammatory response in the relatively mild HFMD patients, and whether steroid treatment has a beneficial effect on the suppression of inflammation in HFMD patients.
View Article and Find Full Text PDFSignal transducer and activator of transcription 3 (STAT3) is an oncogene that promotes cell survival, proliferation, and motility. In the present study, we explored the mechanism involved in the inhibition by epigallocatechin-3-gallate (EGCG) of STAT3 signaling as detected by surface plasmon resonance (SPR)-binding assays and in silico docking. Stat3‑binding assay indicated that EGCG significantly interrupted Stat3 peptide binding at micromolar concentrations, and the docking experiments indicated that EGCG had a strong interaction with Arg-609, one of the key residues in the STAT3 SH2 domain that contributes greatly to Stat3 and phosphorylated peptide binding.
View Article and Find Full Text PDFCurcumin from the rhizome of Curcuma longa (zingiberaceae) has been reported to be a chemopreventive agent that affects cell proliferation by arresting the cell cycle in G2 and modulating the wnt signaling pathway. We found that curcumin inhibits proliferation and induces apoptosis of human hepatocellular carcinoma (HCC) cells in a concentration-dependent manner. We identified that curcumin interrupts wnt signaling by decreasing β-catenin activity, which in turn suppresses the expression of β-catenin target genes (c-myc, VEGF and cyclin D1).
View Article and Find Full Text PDFThe immunopathogenesis of severe hand, foot and mouth disease (HFMD) remains elusive. This study revealed that enterovirus 71 (EV71) epitope-specific CD4+ T cell responses of HFMD patients were skewed toward a Th2 cytokine profile. Patients that demonstrated higher levels of IL-4 expression in their CD4 T cells following antigen stimulation in vitro tended to have a more prolonged period of high fevers and a longer duration of illness.
View Article and Find Full Text PDFPurpose: How HCV virus affects the function of dendritic cells (DCs) and their ability to induce CD4+ T cell response remains not fully understood. This study was done to elucidate the impact of HCV on the function of DCs and on DC's capability to induce CD4+ T-cell response.
Methods: Monocyte-derived DCs (MoDCs) were treated with cell-culture HCV (HCVcc).
Enterovirus 71 (EV71) has emerged as a significant pathogen causing large outbreaks in China for the past 3 years. Developing an EV71 vaccine is urgently needed to stop the spread of the disease; however, the adaptive immune response of humans to EV71 infection remains unclear. We examined the neutralizing antibody titers in HFMD patients and compared them to those of asymptomatic healthy children and young adults.
View Article and Find Full Text PDFBackground: The precise function of various resting and activated leukocyte subsets remains unclear. For instance, mast cells, basophils, and eosinophils play important roles in allergic inflammation but also participate in other immunologic responses. One strategy to understand leukocyte subset function is to define the expression and function of subset-restricted molecules.
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