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Substrate-Controlled Divergent Reductive Cyclization of 2-Arylanilines Using CO as a Switching Reagent.
Org Lett
January 2025
College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
Capturing CO is highly valued in the field of organic synthesis, especially underdeveloped dual-CO conversion. In this study, we detail a novel reductive cyclization of 2-indolylanilines with dual CO as a difunctional reagent in the presence of PMHS [poly(methylhydrosiloxane)], delivering methyl-substituted quinoxalines. Furthermore, another chemoselective cyclization with 2-pyrrolylanilines is also realized by converting mono-CO.
View Article and Find Full Text PDFEfficacy of Combined PD-1 Inhibitor and Bevacizumab in Unresectable Liver Metastasis of MSI-H Colorectal Cancer: A Case Report.
Am J Case Rep
January 2025
Colorectal Center, The Affiliated Cancer Hospital of Nanjing Medical University & Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, China.
BACKGROUND Programmed death 1 (PD-1) inhibitors have demonstrated limited effectiveness in patients with microsatellite instability-high (MSI-H) colorectal cancer (CRC). Recent studies suggest that their efficacy can be enhanced when combined with anti-angiogenic agents. CASE REPORT We present a case of a 25-year-old woman with CRC harboring a KRAS mutation and MSI-H status, along with initially unresectable liver metastases.
View Article and Find Full Text PDFMeta-Analysis of the Input and Disposition of Various Dosage Forms of Methylprednisolone in Healthy Subjects Utilizing a Physiologically Based Pharmacokinetic Model.
AAPS J
January 2025
Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, 160 Hayes Rd, Buffalo, New York, 14214, USA.
The study quantitatively analyzes and compares the pharmacokinetics (PK) of methylprednisolone (MPL) in humans upon administration of various dosage forms. The PK parameters and profiles of MPL in healthy subjects were collected from 22 literature sources. A minimal physiologically based pharmacokinetic (mPBPK) model consisting of blood and two tissue (lumped liver and kidney, remainder) compartments with nonlinear tissue partitioning was applied to describe MPL disposition.
View Article and Find Full Text PDFThe nuclear matrix stabilizes primed-specific genes in human pluripotent stem cells.
Nat Cell Biol
January 2025
Department of Systems Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, China.
The nuclear matrix, a proteinaceous gel composed of proteins and RNA, is an important nuclear structure that supports chromatin architecture, but its role in human pluripotent stem cells (hPSCs) has not been described. Here we show that by disrupting heterogeneous nuclear ribonucleoprotein U (HNRNPU) or the nuclear matrix protein, Matrin-3, primed hPSCs adopted features of the naive pluripotent state, including morphology and upregulation of naive-specific marker genes. We demonstrate that HNRNPU depletion leads to increased chromatin accessibility, reduced DNA contacts and increased nuclear size.
View Article and Find Full Text PDFMultifunctional metal-organic frameworks with photothermal-triggered nitric oxide release for gas/photothermal synergistic cancer therapy.
J Colloid Interface Sci
January 2025
Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University, Nanjing 210008 China. Electronic address:
Photothermal therapy (PTT) utilizing cyanine dyes (Cy) and nitric oxide (NO) gas therapy via BNN6 have demonstrated significant potential in cancer treatment. However, the rapid clearance of these small molecules from the body limits their accumulation at tumor sites, thereby reducing therapeutic efficacy. To address this, we employed the acid-sensitive nanomaterial ZIF-8 as a carrier to encapsulate Cy and BNN6, creating functionalized BNN6-Cy@ZIF-8 Nanoparticles (B-C@Z NPs) for the targeted delivery and release of Cy and BNN6 at tumor sites.
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