cell migration Articles
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MicroRNA-155 is regulated by the transforming growth factor β/smad pathway and contributes to epithelial cell plasticity by targeting RhoA
Transforming growth factor β (TGF-β) signaling facilitates metastasis in advanced malignancy. While a number of protein-encoding genes are known to be involved in this process, information on the role of microRNAs (miRNAs) in TGF-β-induced cell migration and invasion is still limited. By hybridizing a 515-miRNA oligonucleotide-based microarray library, a total of 28 miRNAs were ...
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Polypyrrole incorporating biomolecules
Polypyrrole (PPy) is a conducting polymer with emerging applications in biomedical engineering. We report on the synthesis and properties of PPy incorporating biomolecules using AC impedance spectroscopy. Impedance behaviour was consistent with two basic charge transfer processes, polaronic and electronic, demonstrated by two-electrode impedance spectroscopy over the frequency range 5 Hz?13 MHz. ...
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MicroRNA 21 promotes glioma invasion by targeting matrix metalloproteinase regulators
Substantial data indicate that microRNA 21 (miR-21) is significantly elevated in glioblastoma (GBM) and in many other tumors of various origins. This microRNA has been implicated in various aspects of carcinogenesis, including cellular proliferation, apoptosis, and migration. We demonstrate that miR-21 regulates multiple genes associated with glioma cell apoptosis, migration, and invasiveness, ...
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Effects of trophic exposure to diclofenac and dexamethasone on hematological parameters and immune response in freshwater fish
The aim of this work was to evaluate the effects of diclofenac and dexamethasone on hematological parameters and immune response in the fish species Hoplias malabaricus after trophic exposure. Fish were fed twice every week with Astyanax sp., which was submitted to intraperitoneal (i.p.) inoculation with diclofenac (0, 0.2, 2.0, or 20.0 µg/Kg) or dexamethasone (0.03, 0.3, or 3.0 µg/Kg). After ...
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Microfluidic tools to investigate pathologies in the blood microcirculation
We show how microfluidics technology can be used to fabricate simple and innovative biomimetic tools to shed new light on physiopathological events occurring in the blood microcirculation. Examples of applications are given in the context of the acute respiratory distress syndrome (ARDS), an inflammatory disease of the lung triggered by a massive arrest of white blood cells in the lung ...
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Closing the "tunnel of cells" to slow cancer
Recent research has uncovered an especially aggressive mechanism for the spread of a particularly aggressive type of breast cancer, in which the NUP93 protein plays a key role. Because this protein creates a "tunnel" in the nuclear membrane, cancer can gain access to the cell's DNA and exploit it to satisfy its own goals, such as increasing the cell's ability to migrate and spread the disease ...
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CD Biosciences Launches Substrate-Chromogens for Immunohistochemistry
CD BioSciences, a US-based biotechnology company focusing on the development of imaging technology, has announced the launch of its innovative line of Chromogenic Substrates for immunohistochemistry (IHC). These cutting-edge substrates offer superior signal sensitivity, long-term storage stability, enhanced safety, and user-friendliness, empowering researchers to unlock deeper insights into ...
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New Approach to Successfully Purify and Characterize Human Neural Stem Cells
Human brain has approximately 171 billion cells, of which slightly more than half (approximately 86 billion) are nerve cells. These 86 billion nerve cells are a diverse cell population with hundreds of specialized types and functions, but all originate from three neural cell lineages--neurons, oligodendrocytes, and astrocytes. All three cell lineages originate from a pool of neural stem and ...
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Structural Characteristics and Functions of Glycoproteins, Proteoglycans and Glycolipids
Sugar is an important nutrient for the human body, and its primary physiological function is to provide energy and carbon sources for life activities. In addition, sugar also participates in the composition of glycoproteins and glycolipids, and regulates cell information transmission. Monosaccharides are polymerized by glycosidic bonds to form oligosaccharides or polysaccharides, also called ...
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Electrospinning Technology of Recombinant Human Collagen
Electrospinning can produce continuous fibers on the micro - and nano-scale. The high flexibility and low cost of the material make electrospinning very attractive. In addition, the high specific surface area, porosity, and similarity to ECM ensure that the electrostatic pad promotes cell adhesion, skin regeneration, nutrient and oxygen transport, moisture retention, exudate removal, and ...
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CADM: A New Generation of Tumor Suppressor Genes
About Tumor Suppressor Genes A tumor suppressor gene, also known as anti-onco gene, is an essential component of the body's defense against cancer. It usually facilitates apoptosis. With its absence, the human body will be functioning without its “brake” of cell proliferation. Cells are potent to go under abnormal growth processes and finally lead to tumor/cancer. Here are some key ...
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Computer Vision-Based Digital Biomarkers Could Enable Faster and More Accurate In Vivo Assessment of Disease
At Recursion, we are working to decode biology and industrialize drug discovery. We have successfully executed over 82 million phenomic experiments and inferred over 179 billion biological relationships in our quest to identify promising novel therapeutic approaches. Now, we are extending our industrialized approach to petabytes of pre-clinical in vivo studies. Digitalizing in vivo studies ...
By Recursion
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How Much Do You Know about Glycosaminoglycans?
Glycosaminoglycan (GAG) is a general term for the glycan part of proteoglycan macromolecules. Glycosaminoglycans are large linear polysaccharides composed of repeating disaccharide units, and their main configuration contains amino sugars and uronic acids (glucuronic acid and/or iduronic acid). Glycosaminoglycans can be divided into chondroitin sulfate, dermatan sulfate, keratan sulfate, ...
By CD BioGlyco.
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Uses of Recombinant Human Collagen
Collagen is the main structural protein in vertebrates. It plays an essential role in providing a scaffold for cellular support and thereby affecting cell attachment, migration, proliferation, differentiation, and survival. Natural animal collagen and its recombinant collagen are favorable replacements in human tissue engineering due to their remarkable biomedical property. However, this ...
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Science Bake Off - Engineers Use Soda Bread In Tissue Engineering
Summary Scientists were not immune to the home baking trends that grew out of a year of self-isolation and working from home. A creative application of soda bread as scaffolding for tissue engineering produced some exciting results and highlights the value of keeping it ...
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An Early Study on the Mechanisms that Allow Tissue-Engineered Vascular Grafts to Resist Intimal Hyperplasia
Abstract : Intimal hyperplasia is one of the prominent failure mechanisms for arteriovenous fistulas and arteriovenous access grafts. Human tissue-engineered vascular grafts (TEVGs) were implanted as arteriovenous grafts in a novel baboon model. Ultrasound was used to monitor flow rates and vascular diameters throughout the study. Intimal hyperplasia in the outflow vein of TEVGs was assessed at ...
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Mesothelin: A New Target for Cancer Therapy
Structure and function of mesothelin The MSLN gene is located in chromosome 16p13. It contains 17 exons, with a cDNA length of about 2138bp, has a 1884-bp open reading frame, and encodes the precursor protein of 628 amino acids (69 kDa). This precursor protein can be hydrolyzed by furin protease into two parts: mesothelin in the size of 40 kDa fragments and 31 kDa secreted fragments called ...
By BOC Sciences
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Cancer Target: Mesothelin
Mesothelin is a glycosylphosphatidylinositol (GPI)-anchored cell surface glycoprotein. Its biological function has not yet been clarified, but due to its limited distribution in normal tissues and high expression in some tumor tissues, it is expected to be used in tumor-specific treatment. In existing studies of human epidermoid carcinoma cell lines expressing mesothelin, biodistribution analysis ...
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Unveiling the Role of CD73: A Key Player in Immune Regulation and Beyon
What is CD73? CD73, also known as ecto-5′-nucleotidase, is a groundbreaking immunoinhibitory protein that assumes a pivotal role in tumor growth and metastasis. Its primary function revolves around converting extracellular ATP into immunosuppressive adenosine, working in tandem with CD39 within normal tissues to curtail excessive immune reactions. However, this mechanism is often hijacked ...
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Mechanism of Action of Paclitaxel
Paclitaxel is a natural anticancer drug with the molecular formula C47H51NO14. It has been widely used in the clinical treatment of breast cancer, ovarian cancer, and certain head and neck cancers, as well as lung cancer. Its novel and complex chemical structure, extensive and significant biological activity, unique mechanism of action, and scarce natural resources have gained immense favor among ...
By BOC Sciences
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