antigen presentation Articles
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Protein-loaded chitosan nanoparticles modulate uptake and antigen presentation of hen egg-white lysozyme by murine peritoneal macrophages
Chitosan binds to negatively charged tripolyphosphate (TPP) by an electrostatic interaction driven by its positively charged amino group. This interaction allows developing stable nanoparticles suitable as a carrier and controlled release system for drugs and vaccines. We study the effect of chitosan nanoparticles (CNp) on the uptake and antigen presentation of the model protein hen-egg white ...
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Types and Function of Oligosaccharides
Types of Oligosaccharides Disaccharides These are the sugars having two monomeric units, and thus it is called di_saccharide. Some examples are maltose, sucrose, and lactose. Maltose is the action of an enzyme and it gives glucose +glucose; Sucrose (or cane sugar) in the action of invertase produces fructose + glucose, and Lactose(milk sugar) in the action of enzyme lactase produces galactose + ...
By BOC Sciences
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Oral mucosal immunotherapy for allergic rhinitis: A pilot study
Abstract Background: The sublingual mucosa has been used for many years to apply allergenic extracts for the purpose of specific immunotherapy (IT). Although sublingual IT (SLIT) is both safe and efficacious, the density of antigen-presenting cells is higher in other regions of the oral cavity and vestibule, which make them a potentially desirable target for IT. Objective: To present the concept ...
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In Vitro and In Vivo Antigen Presentation and Diagnosis Development of Recombinant Overlapping Peptides Corresponding to Mtb ESAT-6/CFP-10
The following publication describes a study developing the ROP-TB antigen for both in vitro IGRA-based TB diagnosis, as well as the in vivo skin test for TB diagnosis in both humans and cattle. The advantages of the ROP-TB diagnosis are firstly distinguishing Mtb infection from BCG vaccination, and secondly, being suitable for industrial manufacture. Read the full article: ROP-TB Diagnosis ...
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Synthesis of high aspect ratio gold nanorods and their effects on human antigen presenting dendritic cells
High aspect ratio (AR) gold nanorods (NRs) attract great interest for biomedical applications due to their novel physicochemical properties. Here, we report a facile method for preparation of high AR gold NRs through a seedless surfactant-mediated protocol with the additive of nitric acid. High-resolution transmission electron microscopy studies showed that the concentration of nitric acid has ...
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Mpys, a novel membrane tetraspanner, is associated with major histocompatibility complex class ii and mediates transduction of apoptotic signals
Although the best-defined function of type II major histocompatibility complex (MHC-II) is presentation of antigenic peptides to T lymphocytes, these molecules can also transduce signals leading alternatively to cell activation or apoptotic death. MHC-II is a heterodimer of two transmembrane proteins, each containing a short cytoplasmic tail that is dispensable for transduction of death signals. ...
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CpG Oligodeoxynucleotides Synthesis
Creative Biogene is one of the leading biotechnology companies which has the expertise and ability in providing CpG oligodeoxynucleotides synthesis service for customers worldwide. Creative Biogene's sophisticated equipments, advanced technologies and highly experienced staffs are available to assist you synthesis your interested CpG oligodeoxynucleotides. Creative Biogene's goal is to provide ...
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Novel, Smaller and More Powerful CTLA4 Inhibitors for the Treatment of Solid Tumors
Abstract Immune checkpoint inhibitors (ICIs) have obtained durable responses in many cancers, making it possible to foresee their potential in improving the health of cancer patients. However, immunotherapies are limited at the moment to a minority of patients and there is a need for a better understanding of the basic molecular mechanisms and functions of pivotal immune molecules. Immune ...
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Immune Strategies for Cancer Treatment
In the search for innovative and effective ways to target cancer, we are faced with more than just a challenging problem; we are faced with our own cells as opponents. Cancer cells evolve to achieve an optimum of physical fitness, giving them an array of abilities that no cell should possess in a healthy organism. One way to find novel therapies against cancer therefore could imply finding a ...
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Research Progress on Aluminum Adjuvants and Their Mechanisms of Action
What are Adjuvants? Adjuvants, also known as immunomodulators or immune enhancers, are an additive to vaccines. Adjuvants are non-specific immune enhancers that enhance or alter the type of immune response to an antigen. Adjuvants can help antigens induce long-term effective specific immune responses in vivo, leading to higher vaccine efficacy and prolonged protection from immune responses. ...
By BOC Sciences
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What is FGL2?
Inflammation is a series of complex response events produced by the host system to pathogen infection and various tissue injuries. When the inflammatory response continues, it enters the stage of "uncontrollable inflammation", which plays an important role in the occurrence and development of complex diseases such as tumors. Therefore, the key molecular events in the process of ...
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Tumor Glycan-Targeted Therapy
Glycosylation is a sophisticated type of post-translational modification that impacts over 50% of cellular proteins and is a critical regulator of many eukaryotic processes. Aberrant glycosylation is a common hallmark of many malignancies and is important at all stages of tumor growth. Glycosylation regulates a range of physiopathological processes, including cell-cell adhesion, cell-matrix ...
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The nanovaccine technology with huge potentials
Vaccines are an unparalleled medical milestone that has saved countless lives by harnessing the human immune system, according to the history of human development. Vaccine remains the most effective source of defense against the COVID-19 pandemic since 2020. The success of the lipid nanoparticle COVID-19 mRNA vaccine shows that nanotechnology can be used in vaccine development. Compared to ...
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Applications of Liposomal Drug Delivery System Technology
Liposomes are a novel drug delivery system (DDS). They are bimolecular vesicles that form spontaneously when phospholipids are dispersed in water. Liposomes vary in size, composition and charge and can be used as carriers for a wide range of drug molecules, such as chemotherapeutic agents, antimicrobial and antiviral drugs, antiparasitic drugs, genetic material, vaccines, therapeutic proteins, ...
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How to activate the "first responders" of the immune system - NK cells
About NK Cells Natural Killer (NK) cells play a critical role in the innate immune surveillance against cancer and viral infections. They are the "first responders" capable of spontaneously recognizing abnormal cells in the body, swiftly eliminating them through targeted cytotoxic mechanisms, and effectively producing pro-inflammatory cytokines and chemokines to recruit and activate other immune ...
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Inflammatory Cytokines Profile
Cytokines are classified according to their different roles in the inflammatory response: pro-inflammatory cytokines and anti-inflammatory cytokines. Pro-inflammatory Cytokines Interleukin-1 (IL-1) IL-1 is a proinflammatory cytokine that activates a variety of immune and inflammatory cells and is secreted mainly by monocytes/macrophages, neutrophils and endothelial cells. IL-1 consists of two ...
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Peptide Vaccine Design
Vaccines are considered one of the most successful medical interventions in the past few centuries, aiming to harness the human immune system and generate lasting protection against specific diseases. Traditional vaccines rely on the use of inactivated pathogens to trigger an immune response. However, many of these formulations carry a high risk of causing allergies or autoimmune reactions. ...
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The ins and outs of TCR-T cell therapy
Adoptive cell transfer (ACT) therapy is one of the most effective therapeutic options for tumor immunotherapy that is currently emerging in clusters. Chimeric antigen receptors (CARs) and engineered T cell receptors (TCRs) are the main adoptive immunotherapies in recent years. TCR-engineered T cells express tumor antigen-specific receptors with alpha and beta chains generated from high-quality, ...
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Possible treatment of human multiple myeloma found
Multiple myeloma is an essentially incurable plasma cell cancer with a very poor prognosis for patients; however, in a recent study published in Science Translational Medicine entitled "Selective targeting of multiple myeloma cells with a monoclonal antibody recognizing the protein CD98 heavy chain," scientists from Osaka University in Japan have discovered the CD98 heavy chain, a common ...
By Profacgen
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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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