Cadmium (Cd) is a highly toxic metal in human body, and therefore understanding the immunotoxicity of Cd is significant for public health. The aim of this study was to investigate the role of hematopoietic stem cells (HSC) in regulating the immunotoxicity of Cd. After exposure to 10 ppm Cd via drinking water for up to 9 months, C57BL/6 mice had a suppressed adaptive immune system at day 135 but had an enhanced adaptive immune system at day 270 during Cd exposure.
View Article and Find Full Text PDFBackground: OSA can cause cognitive impairment (CI). The aim of this study was to investigate whether miR-20a-5p in exosomes derived from bEnd3 cells with IH mediates intercellular crosstalk and induces CI through hippocampal neuronal cell pyroptosis.
Materials And Methods: BEnd3-derived exosomes were isolated from the normal oxygen control group (NC-EXOS) and IH group (IH-EXOS).
Targeting the biosynthetic pathway of mycolic acid is highly attractive to researchers in the field of novel anti-tubercular drug development. Pks13-TE is an essential catalytic component in the last assembling step of mycolic acid, and the co-crystal structures of the Pks13-TE-inhibitor complex provide insight into ligand recognition. Based on a structure-guided strategy, N-aryl indole derivatives were designed, synthesized, and evaluated for their antitubercular activities.
View Article and Find Full Text PDFStalled replication forks, susceptible to nucleolytic threats, necessitate protective mechanisms involving pivotal factors such as the tumor suppressors BRCA1 and BRCA2. Here, we demonstrate that, upon replication stress, RNA polymerase II (RNAPII) is recruited to stalled forks, actively promoting the transient formation of RNA-DNA hybrids. These hybrids act as safeguards, preventing premature engagement by the DNA2 nuclease and uncontrolled DNA2-mediated degradation of nascent DNA.
View Article and Find Full Text PDFA pea protein isolate (PPI)-hyaluronic acid (HA) nanocarrier delivery system was created for quercetin (Que) encapsulation using the pH conversion strategy. The self-assembly of the PPI-HA binary nanocomplex (HPP) were mainly driven by electrostatic and hydrophobic interactions. Que was successfully encapsulated in HPP nanocomposites (Que@HPP), which exhibited preferable redispersibility, and encapsulation efficiency (87.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
December 2024
Predator-prey interactions are a major driver of microbiome dynamics, but remain difficult to predict. While several prey traits potentially impact resistance to predation, their effects in a multispecies context remain unclear. Here, we leverage synthetic bacterial communities of varying complexity to identify traits driving palatability for nematodes, a main consumer of bacteria in soil.
View Article and Find Full Text PDFWe aim to investigate muscle ARNT-like protein 1 (BMAL1) regulation of syntaxin17 (STX17) in mouse hippocampal neurons, focusing on autophagy and amyloid-β (Aβ) deposition. Autophagosome-lysosome fusion in APP/PS1 hippocampal tissues was observed using transmission electron microscopy, while mRNA levels of LC3II and P62 were measured via reverse-transcription PCR (RT-PCR) after Amyloid precursor protein (APP) overexpression. STX17, linked to autophagy and differentially expressed in Alzheimer's disease (AD) brains, was knocked down or overexpressed to assess its effects.
View Article and Find Full Text PDFHealthcare (Basel)
November 2024
Background: In the digital age, safeguarding children's mental health (CMH) has emerged as one of the most pressing challenges. The rapid evolution of social media (SM) from a basic networking platform to a multifaceted tool has introduced numerous conveniences. However, it has also posed significant challenges to children's mental well-being.
View Article and Find Full Text PDFThe surface color and materials of sidewalk pavements exhibit different albedo characteristics, leading to varied surface urban heat island effects in subtropical regions. To quantify the effect of pavement surface color and material on SUHI, Prefabricated Concrete Structure brick (PCB), Granite brick (GB) and Dutch brick (DB) totaling 14 pavement samples in Hangzhou were placed under unshaded, cloud shaded and tree shaded conditions. CIELAB (International Commission on Illumination L*a*b*) color data, short-wave radiation (incoming and outgoing) and surface temperature were measured.
View Article and Find Full Text PDFKeratoconus (KC) is the most common ectatic corneal disease with unknown pathogenesis. This study aimed to investigate the role of methyltransferase-like enzyme 3 (METTL3) in KC pathogenesis. In the present study, we examined the levels of METTL3 and other N6-methyladenosine (mA) modification-related proteins in KC samples and human stromal keratocyte (HTK) cells stimulated by mechanical stretch (MS) using Western blotting and immunohistochemistry.
View Article and Find Full Text PDFImmune exclusion inhibits anti-tumor immunity and response to immunotherapy, but its mechanisms remain poorly defined. Here, we demonstrate that Trophoblast Cell-Surface Antigen 2 (TROP2), a key target of emerging anti-cancer Antibody Drug Conjugates (ADCs), controls barrier-mediated immune exclusion in Triple-Negative Breast Cancer (TNBC) through Claudin 7 association and tight junction regulation. TROP2 expression is inversely correlated with T cell infiltration and strongly associated with outcomes in TNBC.
View Article and Find Full Text PDFLimited flexibility, complex manufacturing processes, high costs, and insufficient performance are major factors restricting the scalability and commercialization of flexible inorganic thermoelectrics for wearable electronics and other high-end cooling applications. We developed an innovative, cost-effective technology that integrates solvothermal, screen-printing, and sintering techniques to produce an inorganic flexible thermoelectric film. Our printable film, comprising BiTe-based nanoplates as highly orientated grains and Te nanorods as "nanobinders," shows excellent thermoelectric performance for printable films, good flexibility, large-scale manufacturability, and low cost.
View Article and Find Full Text PDFS100A4 is primarily expressed in intestinal macrophages, and promotes colonic inflammation and colitis-associated colon tumorigenesis. Smad4 is also expressed in the colon; however, it inhibits colitis-associated cancer (CAC) development. The specific role of Smad4 in S100A4 cells in CAC remains unknown.
View Article and Find Full Text PDFAngioimmunoblastic T-cell lymphoma (AITL) is an aggressive subtype of peripheral T-cell lymphoma (PTCL) characterized by its T-follicular helper (TFH) phenotype. Relapsed and refractory disease is common in AITL and often associated with a poor prognosis. The presence of epigenetic abnormalities, immune dysregulation, hyperinflammation and active angiogenesis in AITL offers potential targets for histone deacetylase (HDAC) inhibitors and immunomodulatory drugs (IMiDs).
View Article and Find Full Text PDFPrevious research demonstrated the growth promoting benefits of an essential oil/oligosaccharide blend (EO; Stay Strong, Ralco, Inc.) or an encapsulated sodium butyrate (C4; Ultramix GF, Adisseo, Inc.) fed to neonatal calves.
View Article and Find Full Text PDFBed-sharing can have a negative impact on infant sleep safety. In order to reduce the occurrence of bed-sharing with infants, it's necessary to shift the research lens from newborn parents to the antenatal stage before infant birth. Our study aimed to assess the attitudes, subjective norms, perceived behavioral control, and intentions of pregnant women about bed-sharing based on the theory of planned behavior (TPB).
View Article and Find Full Text PDFCombining chemical oxidation and adsorption is highly desirable but challenging to remove organoarsenic compounds for water purification. Herein, we prepared a Zn-doped CuO (CuZnO-2) catalyst by incorporating Zn atoms into the CuO lattice, which results in abundant surface oxygen vacancies (OVs) and modulates the electronic structure of Cu-OVs-Zn sites for PMS activation to degrade p-arsanilic acid (p-ASA) and adsorb the secondary arsenic species simultaneously. The elevated d-band centers for Cu upward to the Fermi level can significantly strengthen the adsorption of PMS, p-ASA, and the generated arsenic species.
View Article and Find Full Text PDFSphingolipids, particularly sphingosine-1-phosphate (S1P), are bioactive lipids involved in regulating cellular processes such as proliferation, apoptosis, inflammation, and tumor progression. Alkaline ceramidase 2 (ACER2) plays a critical role in sphingolipid metabolism by catalyzing the hydrolysis of ceramide to sphingosine, which is subsequently converted to S1P. Dysregulation of ACER2 has been implicated in various gastrointestinal cancers, including colorectal cancer, gastric cancer, and hepatocellular carcinoma.
View Article and Find Full Text PDFAim: To assess the knowledge, attitude and practice (KAP) towards unnecessary urinary catheterisation among nurses in Taicang City, China.
Design: Cross-sectional study.
Methods: This study included nurses from our hospital and was conducted between February 2023 and June 2023.
Carbon monoxide (CO) is a colorless, odorless, toxic, and polluting gas produced by the incomplete combustion of carbon-containing substances such as coal and petroleum. CO is also a gaseous signaling molecule, which participates in and regulates a series of physiological and pathological processes. In this work, two kinds of CO-activated fluorescence probes 2 and 4 were designed and synthesized for the rapid detection of CO and evaluation of acute CO poisoning by hyperbaric oxygen therapy.
View Article and Find Full Text PDFCircular RNA (circRNA) serves as a competitive endogenous RNA (ceRNA) that plays a pivotal role in the initiation and progression of breast cancer (BC). However, compared to other noncoding RNAs (ncRNAs), research on circRNA in BC is still in its infancy. Through the analysis of circRNA datasets in the GEO database, hsa_circ_0001314, which is upregulated in BC, was selected as the focus of this study.
View Article and Find Full Text PDFFront Cell Infect Microbiol
December 2024
Background: Elevated evidence suggests that KIF20A plays an important role in hepatocellular carcinoma (HCC) progression. Nevertheless, the underlying mechanism by which KIF20A promotes HCC cell growth are not well understood.
Methods: Using TCGA-LIHC RNAseq and GEO datasets, we assessed the KIF20A expression and patient survival in HCC and hepatitis B virus (HBV)-related HCC.
To efficiently remove micropollutants from drinking water, this study developed an adsorption-enhanced Fenton catalytic membrane with a two-dimensional structure composed of graphene oxide loaded with iron-cyclodextrin metal-organic frameworks (FeCD-MOF). As water passes through the interlayer channels, micropollutants and hydrogen peroxide (HO) are adsorbed into the voids of the FeCD-MOF and the cavities of the CD. This process increases the concentration of micropollutants and HO in the confined space, thereby significantly enhancing the efficiency of the Fenton catalytic reaction.
View Article and Find Full Text PDFGastric cancer (GC) mesenchymal stromal cells (GCMSCs) are the predominant components of the tumor microenvironment (TME) and play a role in the occurrence, development, and metastasis of tumors. However, GCMSCs exhibit phenotypic and functional heterogeneity. The key population of GCMSCs which are vital to tumor progression remains elusive.
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