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Topic Review
Biography
Peer Reviewed Entry
Video Entry
Topic Review
Polysaccharide-Peptide from
Trametes versicolor
for Colorectal Cancer Treatment
The incidence and mortality of colorectal cancer have shown an upward trend. Therefore, the prevention, diagnosis, and treatment of colorectal cancer still need our continuous attention. Finding compounds with strong anticancer activity and low toxicity is a good strategy for colorectal cancer (CRC) therapy. Trametes versicolor is a traditional Chinese medicinal mushroom with a long history of being used to regulate immunity and prevent cancer. Its extractions were demonstrated with strong cell growth inhibitory activity on human colorectal tumor cells, while the anticancer activity of them is not acted through a direct cytotoxic effect.
653
25 Nov 2022
Topic Review
Moonlighting Metalloproteinase
Protein moonlighting a.k.a. gene sharing has been defined as the concept that one protein processes multiple tasks and plays multiple roles [1]. Thus, multifunctional proteins are designated as moonlighting proteins. Matrix metalloproteinases play multiple roles in extracellular proteolysis and intracellular gene regulation [2,3], prompting us to propose a new definition of Moonlighting Metalloproteinase (MMP).
652
16 Nov 2020
Topic Review
MEIS1 in Hematopoiesis and Cancer
MEIS1 is highly expressed in the bone marrow, and its predominant and better-known role is in embryonic and adult hematopoiesis. Along withPBX1 and HOXA9, MEIS1 is expressed in hematopoietic stem cells (HSCs) but downregulated during their differentiation.
652
27 Oct 2021
Topic Review
Oxidative Crosslinking of Peptides and Proteins
Covalent crosslinks within or between proteins play a key role in determining the structure and function of proteins. Some of these are formed intentionally by either enzymatic or molecular reactions and are critical to normal physiological function. Others are generated as a consequence of exposure to oxidants (radicals, excited states or two-electron species) and other endogenous or external stimuli, or as a result of the actions of a number of enzymes (e.g., oxidases and peroxidases). Increasing evidence indicates that the accumulation of unwanted crosslinks, as is seen in ageing and multiple pathologies, has adverse effects on biological function.
652
24 Feb 2022
Topic Review
The Role of Epigenetics in Type 2 Diabetes
Type 2 diabetes (T2D) is characterised by high levels of blood glucose resulting from a combination of factors, including insulin resistance, a decrease in insulin secretion, and an increase in glucose production by the liver. Epigenetic changes have been shown to influence these factors through changes in changes in gene expression patterns.
652
11 Jul 2023
Topic Review
Nucleoside Analogs and Coronaviruses
Coronaviruses (CoVs) are positive-sense RNA enveloped viruses, members of the family Coronaviridae, that cause infections in a broad range of mammals including humans. Several CoV species lead to mild upper respiratory infections typically associated with common colds. However, three human CoV (HCoV) species: Severe Acute Respiratory Syndrome (SARS)-CoV-1, Middle East Respiratory Syndrome (MERS)-CoV, and SARS-CoV-2, are responsible for severe respiratory diseases at the origin of two recent epidemics (SARS and MERS), and of the current COronaVIrus Disease 19 (COVID-19), respectively.
651
24 May 2021
Topic Review
Plasmalogen Replacement Therapy
Plasmalogens, a subclass of glycerophospholipids containing a vinyl-ether bond, are one of the major components of biological membranes. Changes in plasmalogen content and molecular species have been reported in a variety of pathological conditions ranging from inherited to metabolic and degenerative diseases. Most of these diseases have no treatment, and attempts to develop a therapy have been focusing primarily on protein/nucleic acid molecular targets. However, recent studies have shifted attention to lipids as the basis of a therapeutic strategy. In these pathological conditions, the use of plasmalogen replacement therapy (PRT) has been shown to be a successful way to restore plasmalogen levels as well as to ameliorate the disease phenotype in different clinical settings.
651
16 Nov 2021
Topic Review
Applications of Antimicrobial Photodynamic Therapy
Originally discovered as a relatively new anticancer therapeutic technology, photodynamic therapy (PDT) has since evolved and is now used in many therapeutic technologies. For example, it is used against viruses, such as the recently reported antiviral activity against COVID-19, bacteria, fungi, and parasites, in treating neovascular disease, in environmental sanitation and pest control, and in many other applications.
651
13 Apr 2022
Topic Review
Role of Anillin in Normal Cell
Anillin (ANLN) is an actin-binding protein that has been documented as a key factor in cell division, and it is a multi-domain protein that interacts with many proteins. ANLN is highly expressed in many types of site-specific cancerous tumours, including brain, lung, pancreas, and bone marrow cancer.
651
02 Sep 2022
Topic Review
Tropical Diseases Caused by Mosquitoes
Tropical diseases (TDs) are among the leading cause of mortality and fatality globally. The emergence and reemergence of TDs continue to challenge healthcare system. Several tropical diseases such as yellow fever, tuberculosis, cholera, Ebola, HIV, rotavirus, dengue, and malaria outbreaks have led to endemics and epidemics around the world, resulting in millions of deaths. The increase in climate change, migration and urbanization, overcrowding, and other factors continue to increase the spread of TDs.
651
10 Nov 2022
Topic Review
Non-Coding RNAs and CSCs
Cancer stem cells (CSCs) are important factors for the initiation and progression of carcinogenesis. CSCs distinct features can be either promoted or suppressed by the function of non-coding RNAs (ncRNAs), mainly miRNAs, lncRNAs and circRNAs, primarily through the targeting of crucial signaling pathways, such as Wnt, Notch and Hedgehog pathways.
650
12 Oct 2020
Topic Review
Ion Mobility–Mass Spectrometry for Bioanalysis
This study aims to cover the main strategies based on ion mobility spectrometry (IMS) for the analysis of biological samples. The determination of endogenous and exogenous compounds in such samples is important for the understanding of the health status of individuals. For this reason, the development of new approaches that can be complementary to the ones already established (mainly based on liquid chromatography coupled to mass spectrometry) is welcomed. In this regard, ion mobility spectrometry has appeared in the analytical scenario as a powerful technique for the separation and characterization of compounds based on their mobility. IMS has been used in several areas taking advantage of its orthogonality with other analytical separation techniques, such as liquid chromatography, gas chromatography, capillary electrophoresis, or supercritical fluid chromatography. Bioanalysis is not one of the areas where IMS has been more extensively applied. However, over the last years, the interest in using this approach for the analysis of biological samples has clearly increased.
650
31 Mar 2021
Topic Review
Proteomics in CSF of AD
The fact that cerebrospinal fluid (CSF) deeply irrigates the brain together with the relative simplicity of sample extraction from patients make this biological fluid the best target for biomarker discovery in neurodegenerative diseases. Biomarker discovery has been especially fruitful for the identification new proteins that appear in the CSF of Alzheimer’s disease (AD) patients together with amyloid-β (Aβ42), total tau (T-tau), and phosphorylated tau (P-tau). Thus, several proteins have been already stablished as important biomarkers, due to an increase (i.e., CHI3L1) or a decrease (i.e., VGF) in AD patients’ CSF. Notwithstanding this, only a deep analysis of a database generated with all the changes observed in CSF across multiple proteomic studies, and especially those using state-of-the-art methodologies, may expose those components or metabolic pathways disrupted at different levels in AD. Deep comparative analysis of all the up- and down-regulated proteins across these studies revealed that 66% of the most consistent protein changes in CSF correspond to intracellular proteins.
650
08 Oct 2021
Topic Review
The Biological Functions of Glutathione
Glutathione (GSH) is a ubiquitous tripeptide that is biosynthesized in situ at high concentrations (1–5 mM) and involved in the regulation of cellular homeostasis via multiple mechanisms.
650
07 Nov 2023
Topic Review
Hippophae rhamnoides/Cassia fistula Extracts
The work deals with the in vitro evaluations of the pod extracts of C. fistula which are shown to exert better antioxidant and enzymatic properties than those exhibited by the fruit extract of H. rhamnoides.
649
03 Nov 2020
Topic Review
Cancer, Retrogenes, and Evolution
The retroposition, in which the processed mRNA from parental genes undergoes reverse transcription and the resulting cDNA is integrated back into the genome, results in additional copies of existing genes. Despite the initial misconception, retroposition-derived copies can become functional, and due to their role in the molecular evolution of genomes, they have been named the “seeds of evolution”. It is convincing that retrogenes, as important elements involved in the evolution of species, also take part in the evolution of neoplastic tumor at the cell and species levels. The occurrence of specific “resistance mechanisms” to neoplastic transformation in some species has been noted. This phenomenon in some cases has been related to additional gene copies, including retrogenes. In addition, retrogene expression correlates with the occurrence of specific cancer subtypes, their stages, and their response to therapy. Phylogenetic insights into retrogenes show that most cancer-related retrocopies arose in the lineage of primates, and the number of identified cancer-related retrogenes demonstrates that these duplicates are quite important players in human carcinogenesis.
649
16 Apr 2021
Topic Review
Mass Spectrometry Proteomics in Neuropsychiatric Disorder Biomarkers Assessment
The success of mass spectrometry (MS) in proteomics is mainly due to its specificity and sensitivity, which are attributable to advances in liquid chromatography coupled to tandem MS (LC-MS/MS) approaches, and the development of statistical tools that allow the use of Big Data analysis strategies to extract meaningful biological information obtained by MS-based methods. This type of technology can reveal proteome insights at the composition, structure, and function level. Proteomics tools make it possible to evaluate the proteins in complex biological samples qualitatively and quantitatively (either relative or absolute). Based on the meta-analysis results, the upregulation of FCN3 and downregulation of APOA1, APOA2, APOC1, and APOC3 in schizophrenia (SCZ) patients is suggested. Despite the proven ability of MS proteomics to characterize SCZ, several confounding factors contribute to the heterogeneity of the findings.
649
06 Jul 2022
Topic Review
Placental Lactogen
Placental lactogen (PL) is a peptide hormone classified as a member of a growth hormone gene family. PL is secreted throughout pregnancy by both animal and human specialized endocrine cells. It is involved in the regulation of a range of gestational adaptations.
647
28 Oct 2020
Topic Review
Controlling Gene Expression in Hypoxia
Hypoxia—reduction in oxygen availability—plays key roles in both physiological and pathological processes. Given the importance of oxygen for cell and organism viability, mechanisms to sense and respond to hypoxia are in place. A variety of enzymes utilise molecular oxygen, but of particular importance to oxygen sensing are the 2-oxoglutarate (2-OG) dependent dioxygenases (2-OGDs). Of these, Prolyl-hydroxylases have long been recognised to control the levels and function of Hypoxia Inducible Factor (HIF), a master transcriptional regulator in hypoxia, via their hydroxylase activity. However, recent studies are revealing that dioxygenases are involved in almost all aspects of gene regulation, including chromatin organisation, transcription and translation. We highlight the relevance of HIF and 2-OGDs in the control of gene expression in response to hypoxia and their relevance to human biology and health.
647
05 Mar 2021
Topic Review
Ribosome-Inactivating Proteins
Ribosome-inactivating proteins (RIPs) are rRNA N-glycosylases from plants (EC 3.2.2.22) that inactivate ribosomes thus inhibiting protein synthesis.
645
25 Feb 2021
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