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Topic Review
Droplet-Based Microfluidic High-Throughput Screening of Engineered Strains
Microfluidic technology has become an important high-throughput screening technology due to its fast speed, low cost, high automation, and high screening throughput, and it has developed rapidly. Droplet-based microfluidic high-throughput screening has been widely used in various fields, such as strain/enzyme activity screening, pathogen detection, single-cell analysis, drug discovery, and chemical synthesis, and has been widely applied in industries such as those involving materials, food, chemicals, textiles, and biomedicine. 
  • 923
  • 08 Jan 2024
Topic Review
Epigenetic and Epitranscriptomic Control in Prostate Cancer
The initiation of prostate cancer has been long associated with DNA copy-number alterations, the loss of specific chromosomal regions and gene fusions, and driver mutations, especially those of the Androgen Receptor. Non-mutational events, particularly DNA and RNA epigenetic dysregulation, are emerging as key players in tumorigenesis. Researchers summarize the molecular changes linked to epigenetic and epitranscriptomic dysregulation in prostate cancer and the role that alterations to DNA and RNA modifications play in the initiation and progression of prostate cancer.
  • 922
  • 17 Mar 2022
Topic Review
Detrimental Effects of Reactive Oxidative Stress
Oxidative stress is defined as a disturbance in the balance between oxidant production and antioxidant activity. Oxidative stress is characterized by an increase in reactive oxygen species or a decrease in antioxidants in the body. This imbalance leads to detrimental effects, including inflammation and multiple chronic diseases, ranging from impaired wound healing to highly impacting pathologies in the neural and cardiovascular systems, or the bone, amongst others. 
  • 922
  • 10 Jan 2024
Topic Review
Proteomics in Management of Acute Kidney Injury
Acute Kidney Injury (AKI) is currently recognized as a life-threatening disease, leading to an exponential increase in morbidity and mortality worldwide. At present, AKI is characterized by a significant increase in serum creatinine (SCr) levels, typically followed by a sudden drop in glomerulus filtration rate (GFR). Changes in urine output are usually associated with the renal inability to excrete urea and other nitrogenous waste products, causing extracellular volume and electrolyte imbalances. Several molecular mechanisms were proposed to be affiliated with AKI development and progression, ultimately involving renal epithelium tubular cell-cycle arrest, inflammation, mitochondrial dysfunction, the inability to recover and regenerate proximal tubules, and impaired endothelial function. Diagnosis and prognosis using state-of-the-art clinical markers are often late and provide poor outcomes at disease onset. Inappropriate clinical assessment is a strong disease contributor, actively driving progression towards end stage renal disease (ESRD). Proteins, as the main functional and structural unit of the cell, provide the opportunity to monitor the disease on a molecular level. Changes in the proteomic profiles are pivotal for the expression of molecular pathways and disease pathogenesis. Introduction of highly-sensitive and innovative technology enabled the discovery of novel biomarkers for improved risk stratification, better and more cost-effective medical care for the ill patients and advanced personalized medicine.
  • 922
  • 04 Sep 2023
Topic Review
DNA-Dependent Protein Kinase in Non-Homologous End Joining
DNA-dependent protein kinase (DNA-PK), which is composed of a DNA-PK catalytic subunit (DNA-PKcs) and Ku80-Ku70 heterodimer, acts as the molecular sensor for DSB and plays a pivotal role in DSB repair through non-homologous end joining (NHEJ). Cells deficient for DNA-PKcs show hypersensitivity to IR and several DNA-damaging agents. Cellular sensitivity to IR and DNA-damaging agents can be augmented by the inhibition of DNA-PK. A number of small molecules that inhibit DNA-PK have been developed. 
  • 921
  • 05 May 2022
Topic Review
Plant Toxins: Recombinant Production as Components of Immunotoxins
Plant toxins that target eukaryotic 28S ribosomal RNA (Ribosome Inactivating Proteins, RIPs), such as the catalytic (A) chain of ricin (a dimeric A-B toxin from Ricinus communis) and saporin (a single chain A toxin from Saponaria officinalis), have found widespread use in the construction of immunotoxins. Both these toxins depurinate ribosomal 28S RNA at a specific site (GAGA loop) inhibiting the binding of elongation factor 2 and blocking protein synthesis. Their high toxicity towards eukaryotic cells has thus justified their use as components of chimeric toxins in cancer treatment. A brief description of recombinant RIPs production is given.
  • 921
  • 02 Jan 2024
Topic Review
Prion p53
p53 is a 393-amino-acids-long transcription factor composed of a globular DNA binding domain flanked by a transcription activation domain in N-terminal and a tetramerization domain in the C-terminal part of the protein and is active in a homo-tetrameric state.
  • 920
  • 12 Mar 2021
Topic Review
The Galaninergic System
Peptidergic systems play an important role in cancer progression. The galaninergic system (the peptide galanin and its receptors: galanin 1, 2 and 3) is involved in tumorigenesis, the invasion and migration of tumor cells and angiogenesis and it has been correlated with tumor stage/subtypes, metastasis and recurrence rate in many types of cancer. Galanin exerts a dual action in tumor cells: a proliferative or an antiproliferative effect depending on the galanin receptor involved in these mechanisms. Galanin receptors could be used in certain tumors as therapeutic targets and diagnostic markers for treatment, prognosis and surgical outcome. 
  • 920
  • 27 Oct 2022
Topic Review
Stabilization Strategies of Pharmaceutical Proteins
At the beginning of the transcription of a protein, thanks to the intracellular chaperone systems and the biophysical laws governing protein folding, correct folding occurs most of the time. When due to cellular defects and rapid protein expression, protein folding becomes problematic, and several fates may occur for the protein. In cases where misfolding leads to the loss of protein activity (such as enzymes), the corresponding disease will appear directly. As this state continues, the misfolded protein may turn into amorphous clots or aggregates with regular structures, each of which can lead to various neurological diseases or even cancer. In the most optimistic scenario, the misfolded protein enters the proteasome machinery and is initially converted into smaller peptides and finally broken down into building amino acids.
  • 920
  • 02 Dec 2022
Topic Review
Tumor-Infiltrating Lymphocytes and PD-L1-Positive Cells
This review discusses two topics: (i) the prognostic impact of tumor-infiltrating lymphocytes and (ii) predictive biomarkers for immune checkpoint inhibitors, to shed light on lymphocyte migration in four solid tumors, the urothelial carcinoma, renal cell carcinoma, prostate cancer, and retroperitoneal sarcoma.
  • 918
  • 19 Nov 2020
Topic Review
Integrin β4 as Tumor Marker
Integrin β4 (ITGβ4) is a class of transmembrane adhesion molecules composed of hemidesmosomes (HDs). Its unique long intracellular domain provides intricate signal transduction functions. These signal transduction effects are especially prominent in tumors. Integrin β4 is differentially expressed in various tumors, and it plays a vital role in tumor invasion, proliferation, epithelial–mesenchymal transition, and angiogenesis. In clinical practice, it is described as a diagnostic marker for the targeted treatment of cancer and will be helpful in the clinical diagnosis and treatment of tumors.
  • 918
  • 03 Sep 2021
Topic Review
Microalgae n-3 PUFAs
N-3 polyunsaturated fatty acids (n-3 PUFAs), and especially eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are essential compounds for human health. They have been proven to act positively on a panel of diseases and have interesting anti-oxidative, anti-inflammatory or anti-cancer properties. For these reasons, they are receiving more and more attention in recent years, especially future food or feed development. EPA and DHA come mainly from marine sources like fish or seaweed. Unfortunately, due to global warming, these compounds are becoming scarce for humans because of overfishing and stock reduction. Although increasing in recent years, aquaculture appears insufficient to meet the increasing requirements of these healthy molecules for humans. One alternative resides in the cultivation of microalgae, the initial producers of EPA and DHA. They are also rich in biochemicals with interesting properties.
  • 917
  • 25 Apr 2021
Topic Review
Ferroptosis in H9c2 Cardioblasts: Metabolome Analysis
Ferroptosis is a newly discovered iron-dependent non-apoptotic programmed cell death pathway. It is characterized by the accumulation of oxidized phospholipids due to the excessive oxygenation of polyunsaturated fatty acid (FA) residues of phospholipids by lipoxygenases and the limited capability of glutathione peroxidase 4 (GPX4) to neutralize oxidized phospholipids. Mitochondria play a central role in the pathogenesis of human diseases. They contain the main components and enzymes of the ferroptotic machinery, such as lipoxygenase, GPX4, GSH, glutamate, and iron. Mitochondria do not synthesize GSH and are therefore dependent on the synthesis of cytosolic GSH.  The effects of ferroptosis on the metabolome in H9c2 cardioblasts by gas chromatography-mass spectrophotometry (GC-MS) are described here.
  • 917
  • 29 Mar 2022
Topic Review
Compound Heterozygosis in Aromatic Amino Acid Decarboxylase Deficiency
Aromatic amino acid decarboxylase (AADC) deficiency is a rare monogenic disease due to mutations in the ddc gene producing AADC, a homodimeric pyridoxal 5′-phosphate-dependent enzyme. The disorder is often fatal in the first decade and is characterized by profound motor impairments and developmental delay.
  • 917
  • 13 Oct 2022
Topic Review
Computational Drug Design on Ion Channels
Ion channels play important roles in fundamental biological processes, such as electric signaling in cells, muscle contraction, hormone secretion, and regulation of the immune response. Targeting ion channels with drugs represents a treatment option for neurological and cardiovascular diseases, muscular degradation disorders, and pathologies related to disturbed pain sensation. While there are more than 300 different ion channels in the human organism, drugs have been developed only for some of them and available drugs lack selectivity. Computational approaches are an indispensable tool for drug discovery and can speed up, especially, the early development stages of lead identification and optimization. The number of molecular structures of ion channels has considerably increased over the last ten years, providing new opportunities for structure-based drug development.
  • 917
  • 09 Jun 2023
Topic Review
The Mitochondrial ATP Synthase/IF1 Axis in Cancer Progression
Mitochondria are central hubs in cellular physiology integrating cellular metabolism, bioenergetics, the execution of cell death and signaling through different effectors like Ca2+, reactive oxygen species (mtROS), mtDNA and different metabolites. Studies have summarized the different functions that the mitochondrial ATP synthase and its inhibitor protein, Inhibitory Factor 1 (IF1), play in cellular biology and in cancer progression. It has overviewed the mechanism by which the ATP synthase/IF1 axis contributes to metabolic reprogramming to an enhanced glycolytic phenotype, both in cancer cells and in the maintenance of stemness, and its potential both as biomarkers of prognosis and as targets for therapy. Moreover, it have highlighted how the ATP synthase/IF1 axis contributes to the signaling of cell-type specific programs that allow the adaptation of the cell/organisms to different changing cues, and finally, how the ATP synthase/IF1 axis also participates in preventing the execution of cell death and hence, in therapeutic resistance of the carcinomas. It has emphasized that the relative low activity of mitochondrial metabolic pathways, such as oxidation of pyruvate coupled to oxidative phosphorylation (OXPHOS) and β-oxidation in lung adenocarcinomas, contribute to cancer progression.
  • 917
  • 03 Aug 2023
Topic Review
Mammalian Unfolded Protein Response Transducers
The unfolded protein response (UPR) bears an evolutionary conserved, dual sensitivity to both protein-folding imbalances in the endoplasmic reticulum (ER) lumen and aberrant compositions of the ER membrane, referred to as lipid bilayer stress (LBS). Through transcriptional and non-transcriptional mechanisms, the UPR upregulates the protein folding capacity of the ER and balances the production of proteins and lipids to maintain a functional secretory pathway.
  • 916
  • 03 Nov 2021
Topic Review
Bioactivity of Steroidal Arylidene Derivatives
Steroids constitute a unique class of chemical compounds, playing an important role in physiopathological processes, and have high pharmacological interest. Due to their straightforward preparation and intrinsic chemical reactivity, steroidal arylidene derivatives are important synthetic intermediates for the preparation of other compounds, particularly bearing heterocyclic systems, in addition to their relevant bioactivity with potential pharmacological interest. 
  • 916
  • 29 Apr 2021
Topic Review
Polyphenols for Cancer
Polyphenols play a major role in mammalian epigenome regulation through mechanisms and proteins that remodel chromatin. In fruits, seeds, and vegetables, as well as food supplements, polyphenols are found. Compounds such as these ones are powerful anticancer agents and antioxidants.
  • 914
  • 17 Oct 2022
Topic Review
Response to Abiotic Stresses of Birch, Oak, Poplar
Birch (Betula spp.), oak (Quercus spp.), and poplar (Populus spp.) are the most promising deciduous woody plants in forestry. These species were found to be sensitive to climate change that can badly affect their plantations. Thus, a deep understanding of genetic mechanisms of adaptation to adverse environmental conditions plays an important role in preventing the reduction of deciduous forest area. The stress responses of Betula spp., Quercus spp., and Populus spp. are described to drought and salt stresses
  • 914
  • 19 Jan 2023
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