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Genome concentration limits cell growth and modulates proteome composition in .
Elife
December 2024
Howard Hughes Medical Institute, Stanford University, Stanford, United States.
Defining the cellular factors that drive growth rate and proteome composition is essential for understanding and manipulating cellular systems. In bacteria, ribosome concentration is known to be a constraining factor of cell growth rate, while gene concentration is usually assumed not to be limiting. Here, using single-molecule tracking, quantitative single-cell microscopy, and modeling, we show that genome dilution in cells arrested for DNA replication limits total RNA polymerase activity within physiological cell sizes across tested nutrient conditions.
View Article and Find Full Text PDFMachine learning-based identification of histone deacetylase-associated prognostic factors and prognostic modeling for low-grade glioma.
Discov Oncol
December 2024
Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Background: Low-grade glioma (LGG) is a slow-growing but invasive tumor that affects brain function. Histone deacetylases (HDACs) play a critical role in gene regulation and tumor progression. This study aims to develop a prognostic model based on HDAC-related genes to aid in risk stratification and predict therapeutic responses.
View Article and Find Full Text PDFRole of arbutin in the inhibition of FBXO5 in hepatocellular carcinoma.
Discov Oncol
December 2024
Department of Hygiene, School of Public Health, Bengbu Medical University, Bengbu, 233030, Anhui, People's Republic of China.
Purpose: This work investigated the effect of FBXO5 in hepatocellular carcinoma (HCC) and the mechanism of action of arbutin in its inhibition.
Methods: FBXO5 mRNA and protein expressions in the tumor were assessed using TCGA, ICGC and HPA databases. Cox regression analysis and Kaplan-Meier survival curves were employed to assess the impact of FBXO5 on the survival outcomes of patients with HCC.
Genome-Wide Network Analysis of DRG-Sciatic Nerve Network-Inferred Cellular Senescence and Senescence Phenotype in Peripheral Sensory Neurons.
Mol Neurobiol
December 2024
Department of Physical Therapy, School of Health and Social Services, Saitama Prefectural University, 820 San-Nomiya, Koshigaya-Shi, Saitama, 343-8540, Japan.
Accumulation of senescent neurons in the dorsal root ganglion (DRG) is an important tissue phenotype that causes age-related degeneration of peripheral sensory nerves. Senescent neurons are neurons with arrested cell cycle that have undergone cellular senescence but remain in the tissue and play various biological roles. To understand the accumulation of senescent neurons in the DRG during aging, we aimed to elucidate the mechanism that induces cellular senescence in DRG neurons and the role of senescent DRG neurons.
View Article and Find Full Text PDFCefiderocol (FDC), a siderophore-cephalosporin conjugate, is the newest option for treating infection with carbapenem-resistant gram-negative bacteria. We identified a novel mechanism contributing to decreased FDC susceptibility in Klebsiella pneumoniae clinical isolates. The mechanism involves 2 coresident plasmids: pKpQIL, carrying variants of bla carbapenemase gene, and pKPN, carrying the ferric citrate transport (FEC) system.
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