UHRF1 maintains DNA methylation by recruiting DNA methyltransferases to chromatin. In mouse, these dynamics are potently antagonized by a natural UHRF1 inhibitory protein STELLA, while the comparable effects of its human ortholog are insufficiently characterized, especially in cancer cells. Herein, we demonstrate that human STELLA (hSTELLA) is inadequate, while mouse STELLA (mSTELLA) is fully proficient in inhibiting the abnormal DNA methylation and oncogenic functions of UHRF1 in human cancer cells.
View Article and Find Full Text PDFThe treatment of castration-resistant prostate cancer (CRPC) remains a significant challenge, necessitating the development of new and promising therapeutic strategies. Utilizing molecular glue to degrade previously intractable cancer drivers represents an emerging and promising therapeutic approach to cancer treatment. In this study, we developed a novel CRBN-interacting molecular glue, (XYD049), which exhibits potent and selective degradation of G1 to S phase transition 1 (GSPT1), a well-known untargetable cancer driver in diverse cancer cells.
View Article and Find Full Text PDFMarine prokaryotes and microeukaryotes are essential components of microbial food webs, and drive the biogeochemical cycling. However, the underlying ecological mechanisms driving prokaryotic and microeukaryotic community assembly in large-scale coastal ecosystems remain unclear. In this study, we studied biogeographic patterns of prokaryotic and microeukaryotic communities in the coastal and shelf ecosystem of the China Seas.
View Article and Find Full Text PDFGPCR-G protein signaling from endosomes plays a crucial role in various physiological and pathological processes. However, the mechanism by which endosomal G protein signaling is terminated remains largely unknown. In this study, we aimed to investigate the regulatory mechanisms involved in terminating the signaling of Gα subunits from endosomes.
View Article and Find Full Text PDFTomatoes are frequently challenged by various pathogens, among which Phytophthora capsici (P. capsici) is a destructive soil-borne pathogen that seriously threatens the safe production of tomatoes. Plant growth-promoting rhizobacteria (PGPR) positively induced plant resistance against multiple pathogens.
View Article and Find Full Text PDFHeavy metals can impact the structure and function of coastal sediment. The dissolved organic matter (DOM) pool plays an important role in determining both the heavy metal toxicity and microbial community composition in coastal sediments. However, how heavy metals affect the interactions between microbial communities and DOM remains unclear.
View Article and Find Full Text PDFAlthough vaccines are available for SARS-CoV-2, antiviral drugs such as nirmatrelvir are still needed, particularly for individuals in whom vaccines are less effective, such as the immunocompromised, to prevent severe COVID-19. Here we report an α-ketoamide-based peptidomimetic inhibitor of the SARS-CoV-2 main protease (M), designated RAY1216. Enzyme inhibition kinetic analysis shows that RAY1216 has an inhibition constant of 8.
View Article and Find Full Text PDFBackground: No study has examined the association between per- and polyfluoroalkyl substances (PFAS) exposure and chronic obstructive pulmonary disease (COPD) risk. This study aims to explore this relationship.
Methods: This study enrolled 4541 individuals who had available data on PFAS, COPD, and covariates from NHANES 2007-2018.
Objective: This study investigates the prognostic significance of inflammatory nutritional scores in patients with locally advanced esophageal squamous cell carcinoma (LA-ESCC) undergoing neoadjuvant chemoimmunotherapy.
Methods: A total of 190 LA-ESCC patients were recruited from three medical centers across China. Pre-treatment laboratory tests were utilized to calculate inflammatory nutritional scores.
Although flexible double layer capacitors based on hydrogels overcome the drawbacks of commercial double layer capacitors such as low safety and non-deformability, it is still considered as attractive challenges to achieve high conductivity for hydrogel electrolytes as well as high operating voltages for hydrogel flexible supercapacitors. In this paper, ion migration channels were engineered by immobilizing positive and negative charges on polymer skeleton and dispersing cellulose nanofibers in the polymerized polyelectrolyte network, providing ultra-high ionic conductivity (103 mS cm). In addition, K[Fe(CN)] was introduced through a soaking method, leading to redox reactions on the surface of carbon electrode during charging and discharging, supporting a relatively wide voltage window (1.
View Article and Find Full Text PDFFront Microbiol
November 2023
are widely distributed in the global ocean, from the pelagic zone to coastal waters. However, little is known about in coastal seawater due to limitations in isolation and culture conditions. In this study, a combination of metagenomic sequencing technology, flow cytometry sorting, and multiple displacement amplification was used to investigate in the coastal seawater of Xiamen Island.
View Article and Find Full Text PDFLateral flow immunoassay (LFIA) is a simple point-of-care method for detecting various analytes. However, the lack of test result precision and poor quantification are the main bottlenecks of LFIA. Although magnetic nanoparticles (MNPs) have gained prominence as potent labels in LIFA, the quantitative detection method for trace biomarkers remains to be improved.
View Article and Find Full Text PDFUnlabelled: The study aim to construct an effective model for predicting the survival period of COVID-19 patients.
Methods: Clinical data of 386 COVID-19 patients were collected from December 2022 to January 2023. The patients were randomly divided into training and validation cohorts in a 7:3 ratio.
Background: The application of neoadjuvant immune checkpoint inhibitors combined with chemotherapy (NICT) in treating locally advanced oesophageal squamous cell carcinoma (ESCC) is a subject of considerable research interest. In light of this, we undertook a comprehensive meta-analysis aiming to compare the efficacy and safety of this novel approach with conventional neoadjuvant chemotherapy (NCT) in the management of ESCC.
Methods: A systematic search was conducted in PubMed, Embase, Cochrane Library, and Web of Science to gather relevant literature on the efficacy and safety of NICT compared to conventional NCT in locally advanced ESCC published before June 2023.
Objective: This study aims to investigate the independent prognostic factors of patients with coronavirus disease 2019 (COVID-19) and thereafter construct a related prognostic model.
Methods: The subjects were screened following the COVID-19 diagnostic criteria. The independent prognostic factors were selected based on the indicators, including medical history, clinical manifestation, laboratory tests, imaging examination and clinical prognosis.
Biochem Biophys Res Commun
October 2023
ω-transaminase has attracted growing attention for chiral amine synthesis, although it commonly suffers from severe by-product inhibition. ω-transaminase CrmG is critical for the biosynthesis of Caerulomycin A, a natural product that possesses broad bioactivity, including immunosuppressive and anti-cancer. Compared to L-Arg, amino donor L-Glu, L-Gln or L-Ala is more preferred by CrmG.
View Article and Find Full Text PDFPurpose: Neoadjuvant chemoimmunotherapy (nICT) is a novel and promising therapy model for locally advanced esophageal squamous cell carcinoma.The objective of this study aimed to assessed the impact of additional neoadjuvant immunotherapy on patients' short-term outcomes, particularly the incidence of anastomotic leakage (AL) and pathological response.
Methods: Patients with locally advanced esophageal squamous cell carcinoma who received neoadjuvant chemotherapy (nCT)/ nICT combination with radical esophagectomy were enrolled from three medical centers in China.
Millikelvin precision portable variable temperature blackbody from 298.15 to 693.15 K is very important in the on-site calibration of infrared measuring instruments.
View Article and Find Full Text PDFIn this study, solidified films of CaO-AlO-BaO-CaF-LiO-based mold fluxes with different contents of AlO addition were acquired by immersing an improved water-cooled copper probe in bulk molten slags. This probe can obtain films with representative structures. Different slag temperatures and probe immersion times were employed to investigate the crystallization process.
View Article and Find Full Text PDFPurpose: The present study aims to identify factors related to anastomotic leakage before esophagectomy and to construct a prediction model.
Methods: A retrospective analysis of 285 patients who underwent minimally invasive esophagectomy (MIE). An absolute shrinkage and selection operator was applied to screen the variables, and predictive models were developed using binary logistic regression.
Phytoplankton is the major source of labile organic matter in the sunlit ocean, and they are therefore key players in most biogeochemical cycles. However, studies examining the heterotrophic bacterial cycling of specific phytoplankton-derived nitrogen (N)- and sulfur (S)-containing organic compounds are currently lacking at the molecular level. Therefore, the present study investigated how the addition of N-containing (glycine betaine [GBT]) and S-containing (dimethylsulfoniopropionate [DMSP]) organic compounds, as well as glucose, influenced the microbial production of new organic molecules and the microbial community composition.
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