Subject:
All Disciplines Arts & Humanities Biology & Life Sciences Business & Economics Chemistry & Materials Science Computer Science & Mathematics Engineering Environmental & Earth Sciences Medicine & Pharmacology Physical Sciences Public Health & Healthcare Social Sciences
Sort:
Hottest Latest Alphabetical (A-Z) Alphabetical (Z-A)
Type:
All Topic Review Biography
Topic Review
Inhibition of Replication Fork Formation and Progression
Over 1.2 million deaths are attributed to multi-drug-resistant (MDR) bacteria each year. Persistence of MDR bacteria is primarily due to the molecular mechanisms that permit fast replication and rapid evolution. As many pathogens continue to build resistance genes, current antibiotic treatments are being rendered useless and the pool of reliable treatments for many MDR-associated diseases is thus shrinking at an alarming rate. In the development of novel antibiotics, DNA replication initiation and the primosome are still largely underexplored targets.
  • 338
  • 05 Jun 2023
Topic Review
Ink4a/Arf Expression in Pancreatic Progenitor
The identification of the molecular mechanisms controlling early cell fate decisions in mammals is of paramount importance as the ability to determine specific lineage differentiation represents a significant opportunity for new therapies. Pancreatic Progenitor Cells (PPCs) constitute a regenerative reserve essential for the maintenance and regeneration of the pancreas. Besides, PPCs represent an excellent model for understanding pathological pancreatic cellular remodelling. Given the lack of valid markers of early endoderm, the identification of new ones is of fundamental importance. Both products of the Ink4a/Arf locus, in addition to being critical cell-cycle regulators, appear to be involved in several disease pathologies. Moreover, the locus’ expression is epigenetically regulated in ES reprogramming processes, thus constituting the ideal candidates to modulate PPCs homeostasis. 
  • 522
  • 22 Sep 2021
Topic Review
Innate Lymphoid Cells in Brief
Innate Lymphoid Cells (ILCs) are a recently discovered, enigmatic class of immune cells that have garnered significant attention in the field of immunology. These cells play a pivotal role in maintaining tissue integrity, immune surveillance, and mediating immune responses at barrier surfaces, such as the skin, gut, and lungs. What sets ILCs apart is their ability to swiftly respond to challenges without the need for prior sensitization, distinguishing them from adaptive immune cells like T and B cells. ILCs rely on pattern recognition receptors and a repertoire of cytokines to detect and respond to a wide array of threats, including infections, tissue damage, and environmental changes. ILCs are classified into three main groups based on their cytokine production and transcription factor profiles: ILC1s, ILC2s, and ILC3s. ILC1s primarily defend against intracellular pathogens, ILC2s respond to parasitic infections and allergies, while ILC3s are essential for maintaining mucosal barrier integrity and regulating the gut microbiota. These cells are not only integral to immune defense but also have implications in various disease contexts, including infections, inflammatory disorders, cancer, and allergic conditions. Understanding ILC biology promises to shed light on new therapeutic strategies and revolutionize our approach to immune-related diseases. As our knowledge of ILCs deepens, these cells continue to unveil their potential as critical players in the intricate symphony of the immune system.
  • 254
  • 09 Oct 2023
Topic Review
Inorganic Polyphosphate
Inorganic polyphosphate (polyP), a simple anionic polymer consisting of even hundreds of orthophosphate units, is a universal molecule present in both simple and complex organisms. PolyP controls homeostatic processes in animals, such as blood coagulation, tissue regeneration, and energy metabolism. Furthermore, this polymer is a potent regulator of inflammation and influences host immune response in bacterial and viral infections. Disturbed polyP systems have been related to several pathological conditions, including neurodegeneration, cardiovascular disorders, and cancer, but researchers lack a full understanding of polyP biogenesis and mechanistic insights into the pathways through which polyP may act.
  • 348
  • 28 Apr 2023
Topic Review
INOS in Ovarian Cancer
Inducible nitric oxide synthase (iNOS), the enzyme responsible for nitric oxide (NO) production, is not present in most cells under normal conditions. The expression of its mRNA, as well as its protein synthesis and full enzymatic activity, undergoes multilevel regulation including transcriptional and posttranscriptional mechanisms, the availability of iNOS substrate and cofactors and oxygen tension.
  • 632
  • 22 Dec 2021
Topic Review
Insertion of Precursor Polypeptides into the ER Membrane
The protein import into the organelle termed the endoplasmic reticulum (ER) is the first step in the biogenesis of about one-third of the different soluble and membrane proteins (MPs) of human cells and, therefore, represents a central cell biological research topic.
  • 209
  • 28 Sep 2023
Topic Review
Insights into HP1a-Chromatin Interactions
     Understanding the packaging of DNA into chromatin is essential for the study of gene expression regulatory mechanisms. Heterochromatin establishment and maintenance dynamics have emerged as key features involved in genome stability, cellular growth, and disease. The heterochromatin protein HP1a is the most extensively studied factor that has both establishment and heterochromatin maintenance activities. This protein has two primary domains, namely the chromoshadow and the chromodomain, separated by a hinge region. Several works have taken place over the years, taking the challenge of defining HP1a partners using diverse experimental approaches. We revised and assemble on explaining these interactions and the potential complexes and subcomplexes associated formed with this essential protein. Characterization of these complexes will allow us to clearly understand the consequences of HP1a interactions in heterochromatin in maintenance, heterochromatin dynamics, and the direct relationship of heterochromatin with gene regulation.
  • 725
  • 03 Apr 2021
Topic Review
Insulin-like Growth Factor (IGF) System in Corneal Epithelium
The corneal epithelium, comprising three layers of cells, represents the outermost portion of the eye and functions as a vital protective barrier while concurrently serving as a critical refractive structure. Maintaining its homeostasis involves a complex regenerative process facilitated by the functions of the lacrimal gland, tear film, and corneal nerves. Crucially, limbal epithelial stem cells located in the limbus (transitional zone between the cornea and the conjunctiva) are instrumental for the corneal epithelium integrity by replenishing and renewing cells. Re-epithelialization failure results in persistent defects, often associated with various ocular conditions including diabetic keratopathy. The insulin-like growth factor (IGF) system is a sophisticated network of insulin and other proteins essential for numerous physiological processes.
  • 116
  • 04 Mar 2024
Topic Review
Insulin-Like Growth Factor System
Aberrant bioactivity of the insulin-like growth factor (IGF) system results in the development and progression of several pathologic conditions including cancer. Preclinical studies have shown promising anti-cancer therapeutic potentials for anti-IGF targeted therapies. However, a clear but limited clinical benefit was observed only in a minority of patients with sarcomas. The molecular complexity of the IGF system, which comprises multiple regulators and interactions with other cancer-related pathways, poses a major limitation in the use of anti-IGF agents and supports the need of combinatorial therapeutic strategies to better tackle this axis. 
  • 382
  • 02 Sep 2021
Topic Review
Integral Membrane Proteins at the Tight Junctions
Tight junctions (TJ) are cell–cell adhesive structures that define the permeability of barrier-forming epithelia and endothelia. In contrast to this seemingly static function, TJs display a surprisingly high molecular complexity and unexpected dynamic regulation, which allows the TJs to maintain a barrier in the presence of physiological forces and in response to perturbations. Cell–cell adhesion receptors play key roles during the dynamic regulation of TJs. They connect individual cells within cellular sheets and link sites of cell–cell contacts to the underlying actin cytoskeleton.
  • 179
  • 11 Dec 2023
  • Page
  • of
  • 161
Featured Entry Collections
>>

Featured Books

>>
Encyclopedia of Social Sciences
Encyclopedia of COVID-19
Encyclopedia of Fungi
Encyclopedia of Digital Society, Industry 5.0 and Smart City
Video Production Service
Feedback