Human African trypanosomiasis is causing thousands of deaths every year in the rural areas of sub-saharan Africa. There is a high unmet medical need since the approved drugs are poorly efficacious, show considerable toxicity and are not easy to administer. This work describes the optimization of the pharmacokinetic properties of a previously published family of triazine lead compounds. One compound (35 (UAMC-03011)) with potent anti-trypanosomal activity and no cytotoxicity was selected for further study because of its good microsomal stability and high selectivity for Trypanosoma brucei over a panel including Trypanosoma cruzi, L.eishmania infantum, and Plasmodium falciparum. In vivo pharmacokinetic parameters were determined and the compound was studied in an acute in vivo mouse disease model. One of the important learnings of this study was that the rate of trypanocidal activity is an important parameter during the lead optimization process.
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http://dx.doi.org/10.1016/j.ejmech.2018.03.048 | DOI Listing |
J Med Chem
December 2024
Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
Transactivation response (TAR) RNA-binding protein 2 (TRBP) plays a critical role in microRNA (miRNA) biosynthesis, with aberrant expression linked to various cancers. Previously, we identified , a phenyloxazole derivative that disrupts the TRBP-Dicer interaction in hepatocellular carcinoma (HCC). In this study, we optimized this scaffold and substituent, leading to the discovery of , a 2-phenylthiazole-5-carboxylic acid derivative with nanomolar inhibitory activity (EC = 0.
View Article and Find Full Text PDFEur J Med Chem
December 2024
Basic Medicine Research and Innovation Center for Novel Target and Therapeutic Intervention (Ministry of Education), Department of Urology and Department of Cancer Center of the Second Affiliated Hospital, College of Pharmacy, Chongqing Medical University, Chongqing, 400016, China. Electronic address:
Ferroptosis is a novel form of regulated cell death characterized by iron-dependent lipid ROS accumulation, which is associated with various diseases, including acute organ injury, neurodegenerative disorders, and cancer. Pharmacological inhibition of ferroptosis has great potential for the treatment of these diseases. However, the clinical translation of many ferroptosis inhibitors is hindered by their inadequate activity or suboptimal pharmacokinetic profiles.
View Article and Find Full Text PDFJ Med Chem
December 2024
Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
Pulmonary fibrosis (PF) is a progressive, fatal lung disease lacking effective treatments. Autotaxin (ATX) plays a crucial role in exacerbating inflammation and fibrosis, making it a promising target for fibrosis therapies. Herein, starting from PAT-409 (Cudetaxestat), a series of novel ATX inhibitors bearing 1-indole-3-carboxamide, 4,5,6,7-tetrahydro-7-pyrazolo[3,4-]pyridin-7-one, or 4,5,6,7-tetrahydro-1-pyrazolo[4,3-]pyridine cores were designed based on the structure of ATX hydrophobic tunnel.
View Article and Find Full Text PDFActa Biochim Biophys Sin (Shanghai)
December 2024
Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, School of Life Sciences, Tianjin University, Tianjin 300072, China.
Fibroblast growth factor 21 (FGF21) plays a pivotal role in regulating metabolic processes and energy homeostasis, making it a promising therapeutic avenue for various obesity-related conditions. However, its therapeutic efficacy faces challenges due to its suboptimal pharmacokinetics and bioactivity. To overcome these limitations, we adapt a strategy in which key amino acid residues responsible for enhanced activity are pinpointed through sequence alignment and comparative analysis to develop long-acting FGF21 analogs.
View Article and Find Full Text PDFDrug Deliv Transl Res
December 2024
Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand.
Ablative fractional laser-assisted drug delivery has gained attention as a promising method for enhancing dermal drug absorption and improving therapeutic outcomes in dermatological conditions, particularly for hypertrophic and keloid scars. However, despite the growing number of clinical trials and case reports supporting its efficacy, there remains a scarcity of robust evidence on the topical bioavailability and dermato-pharmacokinetics of drugs in human subjects. This study aimed to examine the enhancement of triamcinolone acetonide (TAC) bioavailability following treatment with a fractional Erbium-Doped Yttrium Aluminum Garnet (Er: YAG) laser.
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