A number of new substituted morpholinopyrimidines were prepared utilizing sequential nucleophilic aromatic substitution and cross-coupling reactions. One of the disubstituted pyrimidines was converted into two trisubstituted compounds which were screened as PI3K inhibitors relative to the well-characterized PI3K inhibitor ZSTK474, and were found to be 1.5⁻3-times more potent. A leucine linker was attached to the most active inhibitor since it would remain on any peptide-containing prodrug after cleavage by prostate-specific antigen, and it did not prevent inhibition of AKT phosphorylation and hence the inhibition of PI3K by the modified inhibitor.
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http://dx.doi.org/10.3390/molecules23071675 | DOI Listing |
Front Endocrinol (Lausanne)
January 2025
Department of Medicine III and Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany.
Type 1 diabetes (T1D) represents a significant health burden worldwide, with associated complications including bone fragility. Current clinical methods and biomarkers for assessing bone health and predicting fracture risk in T1D are limited and lack accuracy. MicroRNAs (miRNAs) have emerged as potential biomarkers for predicting T1D-induced bone loss, although comprehensive profiling studies are lacking.
View Article and Find Full Text PDFStructure
January 2025
Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka 560012, India. Electronic address:
In this issue of Structure, Soteriou et al. use cell biology, in vitro reconstitution approaches, and molecular dynamics (MD) simulations to characterize the membrane association of AKT1. The authors show that the AKT1 pleckstrin homology domain contains two essential and cooperative PI(3,4,5)P-binding sites that enable stable membrane binding of AKT1 in the requisite orientation required for effective downstream signaling.
View Article and Find Full Text PDFJ Cell Biol
January 2025
Department of Biochemistry and Molecular Biology, State University of New York Upstate Medical University, Syracuse, NY, USA.
Huda et al. (https://doi.org/10.
View Article and Find Full Text PDFDental Press J Orthod
December 2024
São Leopoldo Mandic School of Dentistry, Department of Molecular Biology (Campinas/SP, Brazil).
Objective: This systematic review aimed to analyze the literature on changes in endogenous salivary biomarkers of pain, anxiety, stress, and inflammation related to tooth movement during orthodontic treatment of children and adolescents.
Material And Methods: An electronic search was performed in nine databases to identify quasi-experimental studies, without restricting publication language and year. Two reviewers extracted the data and assessed the individual risk of bias using the JBI tools, and the certainty of evidence using the GRADE tool.
Anim Reprod Sci
December 2024
ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata, West Bengal 700 120, India.
Fish oocyte maturation (FOM) is a critical biological process that occurs before ovulation and is influenced by gonadotropins, particularly luteinizing hormone (LH). The release of LH stimulates the ovarian follicle to produce a maturation-inducing hormone (MIH), specifically 17α, 20β-dihydroxy-4-pregnen-3-one (17α, 20β-DP), which initiates the formation of maturation-promoting factor (MPF) through the activation of cyclin B and cdc2 kinase. Insulin-like growth factor I (IGF-I) significantly regulates ovarian functions, including steroidogenesis, by activating its membrane receptors and the tyrosine kinase pathway.
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