Post-transcriptional gene silencing (PTGS) and, more specifically, RNA interference (RNAi) include the processes by which a small double-stranded RNA, 19 to 22 nucleotides (nts) long, negatively regulates the expression and/or translatability of a target RNA, which harbors reverse complementarity to that small RNA, by recruiting the so-called RNA-Induced Silencing Complex...
Pseudomonas aeruginosa is a Gram-negative pathogen that frequently causes severe nosocomial infections through expression of virulence factors, evasion of immune clearance and resistance to therapeutic antimicrobial agents. These factors have led the US Centers for Disease Control and Prevention (CDC) and Infectious Disease Society of America (IDSA) to identify P....
Tumor progression depends on both tumor-intrinsic processes and interactions with different cell types within tumor microenvironment. Identifying targets that have dual effects on both tumor cells and their interacting surrounding cells, such as tumor-infiltrating immune cells, represent a novel therapeutic approach to treat cancer patients
CD44 is a ubiquitously expressed...
Transcription by RNA polymerase II (Pol II) in metazoans is regulated in multiple steps, including preinitiation complex (PIC) formation, initiation, Pol II escape, productive elongation, cotranscriptional RNA processing, and termination. Genome-wide studies have demonstrated that the phenomenon of promoter-bound Pol II pausing is widespread, especially for genes that respond to...
Mucolipins are lysosomal cation channels, with high permeability to calcium ions, that are thought to regulate endolysosomal trafficking. While mucolipin 1 is expressed in all cells, mucolipin 3 is expressed in a small subset of cells (i.e. neonatal intestinal enterocytes, cochlear hair cells and marginal cells of stria vascularis). This...
Spinal cord injury occurs with a worldwide incidence of 13-33 cases per million per year, and more than 2.5 million patients worldwide suffer from spinal cord injury (SCI)-related disability (1, 2). Different methods have been attempted to promote axonal regeneration, including neurotrophin injection, hydrogel injection, olfactory ensheathing cells implantation and...
Eosinophils are major effector cells in diseases including asthma, rhinitis, certain gastrointestinal disorders and atopic dermatitis. Current treatments include mediator antagonists and anti-inflammatory drugs that reduce allergic cell numbers and inhibit mediator release, but they are not fully effective or curative. On their surface, eosinophils selectively express Siglec-8 (sialic acid-binding...
The study of tumor metabolism from the middle of the 20th century through the early 21st almost entirely ignored the mitochondria; instead, the field focused on cancer cells use of glycolysis even when oxygen was not limiting, termed aerobic glycolysis. Due to this observation, it was often speculated that malignant...
Allergic diseases, including asthma, atopic dermatitis, and food allergy, are a widespread health issue. The prevalence of these diseases has been increasing, but the mechanism behind this increase and how allergies develop is not well understood. Although the immune system is central to the pathology of allergy, recent work has...
FOXA1 is a FKHD family protein that plays pioneering roles in lineage-specific enhancer activation and gene transcription. Through genome-wide location analyses, here we show that FOXA1 expression and occupancy are, in turn, required for the maintenance of these epigenetic signatures, namely DNA hypomethylation and histone 3 lysine 4 methylation. Mechanistically,...