The phytochemical investigation of the stem of Bruguiera gymnorrhiza yielded five new aromatic compounds (1-5), of which the bruguierols A - C (1-3) represent a new structural skeleton in natural product chemistry. All structures have been determined by NMR spectroscopic studies. Among them, 3 showed moderate activity against Gram-positive and Gram-negative bacteria including mycobacteria and resistant strains (MICs 12.5 microg/mL).
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1055/s-2005-837784 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Two Novel Compounds Isolated from the Marine Fungal Symbiont of Induce Apoptosis and Cell Cycle Arrest in Breast Cancer Cells: In vitro Study.
J Exp Pharmacol
January 2025
University Center of Excellence for Nutraceuticals, Bioscience and Biotechnology Research Center, Bandung Institute of Technology, Bandung, West Java, Indonesia.
Purpose: A promising feature of marine sponges is the potential anticancer efficacy of their secondary metabolites. The objective of this study was to explore the anticancer activities of compounds from the fungal symbiont of on breast cancer cells.
Methods: In the present research, , an endophytic fungal strain derived from the marine sponge was successfully isolated and characterized.
Laccase Functional Analysis: Substrates, Activity Assays, Challenges, and Prospects.
Chembiochem
January 2025
Vilnius University: Vilniaus Universitetas, Life Sciences Center Institute of Biotechnology, Vilnius, LITHUANIA.
Enzyme functional analysis is a multifaceted process that can be used for various purposes, such as screening for specific activities, as well as developing, optimising, and validating processes or final products. Functional analysis methods are crucial for assessing enzyme performance and catalytic properties. Laccase, a well-known blue multi-copper oxidase, holds immense potential in diverse industries such as pharmaceuticals, paper and pulp, food and beverages, textiles, and biorefineries due to its clean oxidation process and versatility in handling a wide range of substrates.
View Article and Find Full Text PDFThe role of spatial arrangement of aromatic rings on the binding of ,'-diheteroaryl guanidine ligands to the G2C4/G2C4 motif DNA.
Phys Chem Chem Phys
January 2025
Department of Regulatory Bioorganic Chemistry, SANKEN (the Institute of Science and Industrial Research), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka, 567-0047, Japan.
Non-canonical DNA structures formed by aberrantly expanded repeat DNA are implicated in promoting repeat instability and the onset of repeat expansion diseases. Small molecules that target these disease-causing repeat DNAs hold promise as therapeutic agents for such diseases. Specifically, 1,3-di(quinolin-2-yl)guanidine (DQG) has been identified to bind to the disease-causing GGCCCC (G2C4) repeat DNA associated with amyotrophic lateral sclerosis and frontotemporal dementia (ALS/FTD).
View Article and Find Full Text PDFLondon dispersion forces and steric effects within nanocomposites tune interaction energies and chain conformation.
Commun Chem
January 2025
Institute of Physics, Albert-Ludwig-University of Freiburg, Freiburg, Germany.
The interplay between attractive London dispersion forces and steric effects due to repulsive forces resulting from the Pauli principle often determines the geometry and stability of nanostructures. Aromatic polyimides (PI) and carbon nanotubes (CNT) were chosen as building blocks as two components in the hetero delocalized electron nanostructures. Two PIs, having the same diamine part and different linkage substituents between two phenyl rings of dianhydride part, one linked with ether bond (C-O-C) (OPI), the other with C-(CF3)2 (FPI), were investigated.
View Article and Find Full Text PDFCombination of Carbonic Anhydrase Isoform IX Inhibitors and Gefitinib Suppresses on the Invasive Potential of Non-Small Cell Lung Cancer Cells.
Biochemistry (Mosc)
December 2024
Medicinal Chemistry Center, Togliatti State University, Togliatti, 445020, Russia.
Human carbonic anhydrase IX (CAIX) plays a key role in maintaining pH homeostasis of malignant neoplasms, thus creating a favorable microenvironment for the growth, invasion, and metastasis of tumor cells. Recent studies have established that inhibition of CAIX expressed on the surface of tumor cells significantly increases the efficacy of classical chemotherapeutic agents and makes it possible to suppress the resistance of tumor cells to chemotherapy, as well as to increase their sensitivity to drugs (in particular, to reduce the required dose of cytostatic agents). In this work, we studied the ability of new CAIX inhibitors based on substituted 1,2,4-oxadiazole-containing primary aromatic sulfonamides, to potentiate the cytostatic effect of gefitinib (selective inhibitor of epidermal growth factor receptor tyrosine kinase domain) under hypoxic conditions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!