A concise and straightforward synthesis of the fully elaborated macrocyclic core of TMC-95A is reported. A highly efficient organocatalyzed aldolization between isatin and dihydroxyacetone derivatives and formation of the biaryl subunit with concomitant macrocyclization are the characteristic features of this synthesis.
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http://dx.doi.org/10.1021/ol403675c | DOI Listing |
ACS Chem Biol
January 2025
Biogen, Chemical Biology & Proteomics, 225 Binney Street, Cambridge, Massachusetts 02142, United States.
Dimethyl fumarate (DMF) is an established oral therapy for multiple sclerosis worldwide. Although the clinical efficacy of these fumarate esters has been extensively investigated, the mode of action and pharmacokinetics of fumarates have not been fully elucidated due to their broad-spectrum reactivity and complex metabolism in vivo. To better understand the mechanism of action of DMF and its active metabolite, monomethyl fumarate (MMF), we designed and utilized clickable probes to visualize and enrich probe-modified proteins.
View Article and Find Full Text PDFPLoS One
January 2025
Center for Computation and Integrative Biology, Rutgers, The State of New Jersey, Camden, NJ, United States of America.
Melatonin, a molecule with diverse biological functions, is ubiquitously present in living organisms. There is significant interest in understanding melatonin signal transduction pathways in humans, particularly due to its critical role in regulating the sleep-wake cycle. However, a knowledge gap remains in fully elucidating the mechanisms by which melatonin influences circadian regulation.
View Article and Find Full Text PDFCell Biol Toxicol
January 2025
Department of Oral Anatomy and Physiology, Hospital of Stomatology, Jilin Provincial Key Laboratory of Oral Biomedical Engineering, Jilin University, Changchun, 130021, China.
Novel strategies to disrupt tumor progression have emerged from studying the interactions between tumor cells and tumor-associated macrophages (TAMs). However, the molecular mechanisms of interactions between tumor cells and TAMs underlying oral squamous cell carcinoma (OSCC) progression have not been fully elucidated. This study explored the molecular mechanism of the HSP27/IL-6 axis in OSCC chemoresistance, invasion, and migration.
View Article and Find Full Text PDFJ Cell Mol Med
February 2025
Department of Chemotherapy, Jiangxi Cancer Hospital, Nanchang, Jiangxi, China.
Tumour cells possess a multitude of chemoresistance mechanisms, which could plausibly contribute to the ineffectiveness of chemotherapy. O-methylguanine-DNA methyltransferase (MGMT) is an important effector protein associated with Temozolomide (TMZ) resistance in various tumours. To some extent, the expression level of MGMT determines the sensitivity of cells to TMZ, but the mechanism of its expression regulation has not been fully elucidated.
View Article and Find Full Text PDFImmun Inflamm Dis
January 2025
Department of Health Care, Qingdao Municipal Hospital, Qingdao, Shandong, China.
Purpose: C9orf72 deficiency contributes to severe inflammation in mice. Ulcerative colitis (UC) is a chronic inflammatory disorder with the shortage of clinical success. However, whether C9orf72 is involved in the progression of UC is not fully understood.
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