Prostaglandin E (PGE) is a lipid mediator of inflammation and its inhibition has become a popular drug target due to its harmful physiological roles. Diarylheptanoids are one class of compounds that have shown successful inhibition of PGE. This paper reports the synthesis and PGE inhibitory activity of a series of analogues of a naturally occurring diarylheptanoid. The most efficacious compounds were examined for dose-dependent PGE inhibition. Among several promising compounds, the lead candidate exhibited an IC value of 0.56 ng/µL or 1.7 µM with no detectable toxicity at the highest dose of 10 ng/µL.
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http://dx.doi.org/10.1016/j.bmcl.2017.12.046 | DOI Listing |
Int J Biol Macromol
December 2024
Applied Organic Chemistry Department, National Research Center, Dokki, Cairo 12622, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Pharos University in Alexandria, Canal El Mahmoudia St., Alexandria 21648, Egypt. Electronic address:
The current research focuses on the design and synthesis of celecoxib analogues incorporating sulphonamide pyrazole moieties 4, 5, 6a-e, and 7a-f with the aim of achieving a broad range of COX-2 selectivity in vitro. Among these, compounds 6b-d, 7a, 7e, and 7d exhibited potent inhibition, with IC values ranging between 0.05 and 0.
View Article and Find Full Text PDFFront Vet Sci
December 2024
Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research Polish Academy of Science, Olsztyn, Poland.
Introduction: Prostaglandins (PG) are important regulators of the myometrial contractility in mammals. Endometrosis, a condition characterized by morphological changes in the equine endometrium, also affects endometrial secretory function. However, it remains unclear whether and how endometrosis affects myometrial function.
View Article and Find Full Text PDFFront Immunol
December 2024
Department of Pediatrics, Children's Cancer Research Center, Kinderklinik München Schwabing, TUM School of Medicine, Technical University of Munich, Munich, Germany.
Introduction: Pediatric sarcomas, including osteosarcoma (OS), Ewing sarcoma (EwS) and rhabdomyosarcoma (RMS) carry low somatic mutational burden and low MHC-I expression, posing a challenge for T cell therapies. Our previous study showed that mediators of monocyte maturation sensitized the EwS cell line A673 to lysis by HLA-A*02:01/CHM1-specific allorestricted T cell receptor (TCR) transgenic CD8 T cells (CHM1 CD8 T cells).
Methods: In this study, we tested a panel of monocyte maturation cytokines for their ability to upregulate immunogenic cell surface markers on OS, EwS and RMS cell lines, using flow cytometry.
J Neuroinflammation
December 2024
Department of Pharmacology, Vanderbilt University, Nashville, TN, USA.
Inflammation is a critical driver of the early stages of diabetic retinopathy (DR) and offers an opportunity for therapeutic intervention before irreversible damage and vision loss associated with later stages of DR ensue. Nonsteroidal anti-inflammatory drugs (NSAIDs) have shown mixed efficacy in slowing early DR progression, notably including severe adverse side effects likely due to their nonselective inhibition of all downstream signaling intermediates. In this study, we investigated the role of prostanoids, the downstream signaling lipids whose production is inhibited by NSAIDs, in promoting inflammation relevant to early-stage DR in two human retinal cell types: Müller glia and retinal microvascular endothelial cells.
View Article and Find Full Text PDFArch Pharm (Weinheim)
January 2025
Department of Pharmacy, University of Salerno, Fisciano, Italy.
Inhibiting microsomal prostaglandin E synthase-1 (mPGES-1), an inducible enzyme involved in prostaglandin E (PGE) biosynthesis and tumor microenvironment (TME) homeostasis, is a valuable strategy for treating inflammation and cancer. In this work, 5-methylcarboxamidepyrrole-based molecules were designed and synthesized as new compounds targeting mPGES-1. Remarkably, compounds 1f, 2b, 2c, and 2d were able to significantly reduce the activity of the isolated enzyme, showing IC values in the low micromolar range.
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