Dysregulation of transcription is a hallmark of cancer, including bladder cancer (BLCA). CRISPR-Cas9 screening using a lentivirus library with single guide RNAs (sgRNAs) targeting human transcription factors and chromatin modifiers is used to reveal genes critical for the proliferation and survival of BLCA cells. As a result, the nuclear transcription factor Y subunit gamma (NFYC)-37, but not NFYC-50, is observed to promote cell proliferation and tumor growth in BLCA. Mechanistically, NFYC-37 interacts with CBP and SREBP2 to activate mevalonate pathway transcription, promoting cholesterol biosynthesis. However, NFYC-50 recruits more of the arginine methyltransferase CARM1 than NFYC-37 to methylate CBP, which prevents the CBP-SREBP2 interaction and subsequently inhibits the mevalonate pathway. Importantly, statins targeting the mevalonate pathway can suppress NFYC-37-induced cell proliferation and tumor growth, indicating the need for conducting a clinical trial with statins for treating patients with BLCA and high NFYC-37 levels, as most patients with BLCA have high NFYC-37 levels.
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http://dx.doi.org/10.1016/j.celrep.2023.112963 | DOI Listing |
Background: Anakinra is an interleukin-1 receptor antagonist (IL-1Ra). Since IL-1 has been shown to play a key role in the etiology of different autoinflammatory diseases, blocking its pathway has become an important therapeutic target, even in neonates.
Aims: We aimed to report our experience in using anakinra to treat specific neonatal inflammatory conditions.
Molecules
December 2024
School of Pharmacy, Kitasato University, Minato-ku, Tokyo 108-8641, Japan.
It is established that reverse hydroxamate analogs of fosmidomycin inhibit the growth of by inhibiting 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR), the second enzyme of the non-mevalonate pathway, which is absent in humans. Recent biochemical studies have demonstrated that novel reverse fosmidomycin analogs with phenylalkyl substituents at the hydroxamate nitrogen exhibit inhibitory activities against DXR at the nanomolar level. Moreover, crystallographic analyses have revealed that the phenyl moiety of the -phenylpropyl substituent is accommodated in a previously unidentified subpocket within the active site of DXR.
View Article and Find Full Text PDFBiochem Biophys Res Commun
January 2025
Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands. Electronic address:
The enzyme 1-deoxy-d-xylulose-5-phosphate synthase (DXPS) catalyses the first step of the MEP pathway, a key process for isoprenoid biosynthesis in bacteria that is absent in humans, making it a promising drug target. We present the structure of Mycobacterium tuberculosis DXPS in its apo form, obtained through a soaking method that removes thiamine diphosphate (ThDP) and metals from pre-formed crystals. The apo structure had three regions with absence of electron density near the active site that are unique to the apo form of the enzyme.
View Article and Find Full Text PDFJ Appl Microbiol
January 2025
Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Avenida Limeira, 901, Areião, Piracicaba, SP 13414-903, Brazil.
Aims: To investigate the effects of simvastatin as an antimicrobial, considering its influence on the mevalonate pathway and on the bacterial cell wall of Staphylococcus aureus.
Methods And Results: S. aureus ATCC 29213 and 33591 were exposed to simvastatin in the presence of exogenous mevalonate to determine whether mevalonate could reverse the inhibition.
Free Radic Biol Med
January 2025
Department of Neurology, Columbia University Medical Center, New York, NY, 10032, USA. Electronic address:
Coenzyme Q (CoQ) is a critical component of the mitochondrial respiratory chain. CoQ deficiencies often cause a variety of clinical syndromes, often involving encephalopathies. The heterogeneity of clinical manifestations implies different pathomechanisms, reflecting CoQ involvement in several biological processes.
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