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What are Toll Like Receptors? Toll-like receptors (TLRs) are a class of proteins that play a crucial role in the immune system's defense against microbial invaders. These transmembrane receptors are found on various immune cells, including macrophages, dendritic cells, and B cells, as well as non-immune cells like epithelial cells. TLRs are specialized in recognizing specific molecular patterns associated with pathogens, known as pathogen-associated molecular patterns (PAMPs). By detecting the presence of PAMPs, TLRs trigger a cascade of immune responses that help eliminate the pathogens and initiate an appropriate immune defense. windo …

Making the switch! This article provides some help on CV writing tips for scientists for PhDs and PostDocs looking for jobs outside of academia and what they might need to add to their CV to improve it for a business orientated position. { "@context": "https://schema.org", "@type": "BlogPosting", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://www.assaygenie.com/blog/cv-writing-tips-for-scientists/" }, "headline": "CV Writing Tips for Scientists", "description": "Assay Genie's CV (resume) writing tips for scientists looking to leave academia & more into a different career or looking for that new post-doc. CV template for scie …

Stress and anxiety are a normal part of our daily lives and impact everything we do from our relationships with loved ones to our performance in the laboratory. Like any scientist, I experienced stress during my graduate degree, PhD and post-doctoral research. However, as CEO of Reagent Genie, I had to learn new techniques which have helped me to not only deal with stressful situations but also to increase my performance. I have personally gained a great deal from my daily meditation practice which has become part of my morning routine. Therefore, I would like to illustrate how mindful meditation can work not only to improve your personal well-being but also your relationships and perfor …

Haematology · HaemostasisPlatelets: Formation, Structure, Activation and Clinical SignificancePlatelets are anucleate fragments shed from megakaryocytes, and they carry out primary haemostasis — adhering to damaged vessel wall, activating, and aggregating into a plug within seconds. This guide covers thrombopoiesis, the four structural zones, the receptors that mediate adhesion and aggregation, how activation is amplified, and the disorders and antiplatelet drugs that follow from each step.Browse platelet assays →150–450Normal count, ×109/L7–10 daysCirculating lifespanGPIIb/IIIaThe aggregation receptorCOX-1Makes thromboxane A2 on demandKey takeawaysPlatelets are anucleate cytoplasmic fragmen …

What is a Macrophage? Macrophages are indeed a type of phagocyte, responsible for engulfing and destroying foreign particles and cellular debris. They are larger cells with more cytoplasm and are found in various tissues throughout the body, where they serve as part of the innate immune response.. They play a crucial role in maintaining the body's defense mechanism by engulfing and digesting cellular debris, foreign substances, pathogens, and even cancer cells. This process, known as phagocytosis, involves the internalization of external agents into the macrophage cell. Apart from their phagocytic abilities, macrophages also act as potent signaling hubs in the immune system. They r …

Discover the distinct roles of 'In Vivo' and 'In Vitro' in biological research, where one offers a natural context and the other precise control, both vital for scientific advancement. Key Takeaways: "In Vivo" studies are within living organisms, offering physiological relevance. "In Vitro" studies occur outside organisms, allowing controlled experiments. Both methods are complementary, each providing unique scientific insights. "In Situ" studies observe phenomena in their natural environments. In the field of biological research, scientists employ various experimental methods to understand complex biological processes. Two fundamental approaches at the forefron …

Immunology · Myeloid CellsGranulocytes: Neutrophils, Eosinophils and BasophilsGranulocytes are the leukocytes with cytoplasmic granules and lobed nuclei — neutrophils, eosinophils and basophils. They are the fastest-responding arm of cellular immunity, and between them they handle bacterial infection, parasites and allergic inflammation. This guide covers each type, their granule contents and surface markers, how they develop and are recruited, and what immature granulocytes on a blood count actually mean.Browse granulocyte reagents →40–70%Neutrophils, of circulating leukocytes1–4%Eosinophils<1%Basophils — the rarest leukocyte~8 hNeutrophil circulating half-lifeKey takeawaysThere are thre …

Immunology · Innate ImmunityInnate Immunity: Components, Functions & First Line of DefenceThe innate immune system is the body’s first line of defence — a fast, non-specific response built from physical barriers, phagocytic and cytotoxic cells, the complement system and soluble mediators such as interferons, defensins and acute-phase proteins. This guide covers its components, the cells and proteins involved, how it drives inflammation, and the disorders that arise when it fails.Browse ELISA Kits →1stLINE OF DEFENCENon-specificRAPID RESPONSEPRRsPATTERN RECOGNITIONMinutes–hrsONSETContentsKey TakeawaysThe Innate Immune System - Evolution and SignificanceExamples of Innate immunityComponent …

Immunology · Innate LymphocytesNatural Killer Cells: Receptors, Subsets and FunctionNK cells kill without prior sensitisation and without antigen-specific receptors, using a balance of activating and inhibitory signals to distinguish healthy cells from infected or transformed ones. This guide covers missing-self recognition, the receptor families that implement it, the CD56-bright and CD56-dim subsets that do quite different jobs, the developmental stages and their markers, and the adaptive NK cells that complicate the textbook claim that NK cells have no memory.Browse NK cell reagents →CD56 & CD16Markers defining the two subsets~90%Of blood NK cells are CD56-dimMissing selfThe core reco …

The human body is a complex and intricate system where various components work together to maintain health and combat potential threats. Among these essential players are the TNF cytokines, a superfamily of cell-signaling proteins that play a crucial role in regulating the immune system and other critical physiological processes. These cytokines, along with their corresponding receptors, form a dynamic network that orchestrates immune responses, inflammation, cell survival, and much more. In this blog post, we'll delve into the world of TNF cytokines and their receptors, exploring their structural features, functions, and the significant impact they have on our health and w …

Monocytes, as part of the innate immune system, act as the first line of defense against foreign invaders. One of their primary functions is phagocytosis, a crucial process in which they engulf and destroy various pathogens such as bacteria, viruses, and fungi. This blog is an overview of monocytes including monocyte function, production, types, location in the body and related disease.   Key Takeaways: Monocytes are a key part of the innate immune system, specializing in phagocytosis and antigen presentation. Types: Classical (majority, CD14+CD16-) and non-classical (minority, CD14+CD16+). Development: Originate from monoblasts in the bone marrow, influenced by cy …

Immunology · HaematopoiesisMyeloid Lineage: Pioneers of Immune Cell DevelopmentThe myeloid lineage is one of the two great branches of haematopoiesis, generating the innate immune and blood cells — monocytes, macrophages, neutrophils, eosinophils, basophils, dendritic cells, platelets and red blood cells — from the common myeloid progenitor. This guide covers how myeloid cells are identified, their stem cells and progenitors, their roles in immunity, the markers used to study them, and their involvement in disease.Browse ELISA Kits →CMPCOMMON MYELOID PROGENITORInnateIMMUNE CELLSCD11b/CD14KEY MARKERSAMLMYELOID DISEASEContentsKey TakeawaysIntroduction to Myeloid LineageIdentifying Myeloid Cell …

Metabolism · Biochemistry Guide Cellular Respiration: Stages, ATP Production & Pathway Guide How cells convert glucose and oxygen into ATP across four stages — glycolysis, pyruvate oxidation, the citric acid cycle and oxidative phosphorylation — with the net energy yield at each step and the validated assay kits to measure it in your own samples. Browse Metabolism Assay Kits → 4RESPIRATION STAGES 30–32NET ATP / GLUCOSE ~90%CELL ATP FROM MITOCHONDRIA O₂FINAL ELECTRON ACCEPTOR Quick answer Cellular respiration is the proc …

Waardenburg Syndrome: A Rare Genetic Disorder Affecting Pigmentation, Hearing, and More Waardenburg Syndrome (WS) is a fascinating and rare genetic disorder that impacts various aspects of an individual's appearance and sensory abilities. First described by Dutch ophthalmologist Petrus Johannes Waardenburg in the 1950s, WS is characterized by distinctive features, including changes in pigmentation, hearing loss, and facial abnormalities. Table of Contents Jump to a section: - Waardenburg Syndrome Classification - Waardenburg Syndrome Causes - Waardenburg Syndrome Type 3 - Related Kits .nav__list { list-style: …

IL-8 Overview Interleukin-8 (IL-8), also known as CXCL8, was discovered over 30 years ago as a small molecule that could promote chemotaxis and induce the production of both superoxide and hydrogen peroxide (H202) . IL-8 is now recognized as a chemokine, which are small chemoattractant molecules that are secreted by cells of the immune system. Chemokines induce integrin expression and primarily attract leukocytes to the site of infection, although their roles have been discovered to be much more diverse. 44 chemokines and 23 chemokine receptors have been identified to date. Structurally, IL-8 contains two N-terminal cysteine motifs, which classify it as a CX …

What is Neuroimmunology? Neuroimmunology is a multidisciplinary scientific field dedicated to investigating the intricate and bidirectional interactions between the central nervous system (CNS) and the immune system. It involves the rigorous study of regulatory influences and cross-talk that govern the functionality and behavior of these once-segregated systems. { "@context": "https://schema.org", "@type": "BlogPosting", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://www.assaygenie.com/blog/neuroimmunology-of-the-cns" }, "headline": "Neuroimmunology: The Immune System of the CNS", "description": "The central nervous syste …

Schwann cells are cells that play a vital role in nerve function. They are responsible for myelinating axons and helping to ensure the transmission of electrical signals between neurons. Schwann cells also have an important role in nerve regeneration. In this guide, we will take a closer look at the structure and function of Schwann cells, as well as some of the key marker proteins involved in their differentiation. By understanding more about these cells, we can gain insights into the causes of neurodegenerative diseases and potentially develop new treatment approaches. { "@context": "https://schema.org", "@type": "BlogPosting", "mainEntityOfPage": { "@type": "WebPage", …

Fibroblasts, essential components of connective tissues, play vital roles in maintaining tissue structure and function. Their remarkable ability to produce and organize the extracellular matrix forms the foundation for tissue integrity and repair processes. Identifying and characterizing fibroblasts amidst complex biological environments rely on fibroblast markers, specific molecular indicators that aid researchers in distinguishing these cells. In this blog post, we delve into Fibroblast, their markers and their significance in cancers. fibroblast markers in research, their potential applications in disease investigation, and their implications in regenerative medicine and therapeutic …

Neuroscience · Myelin BiologyA Quick Guide to MyelinMyelin is the lipid-rich insulating sheath wrapped around nerve axons. Made by oligodendrocytes in the central nervous system and Schwann cells in the periphery, it lets electrical impulses jump between Nodes of Ranvier — saltatory conduction, which makes nerve signalling up to 100 times faster. When myelin is lost, as in multiple sclerosis, conduction slows or fails altogether.Explore myelin marker ELISA kits →~100×faster conduction with myelin70–85%of myelin dry weight is lipid2.8Mpeople live with MS worldwide~5%of adult brain cells are oligodendrocyte precursorsKey TakeawaysMyelin is a white, fatty membrane of lipids and proteins that in …

Lab Methods · CentrifugationRPM to G-Force (RCF) Conversion: Formula, Calculator Method and Common ErrorsA protocol that says “spin at 3,000 rpm” is incomplete, because the force a sample experiences depends on the rotor radius as well as the speed. Relative centrifugal force is the reproducible quantity, and converting between the two takes one formula in each direction. This guide covers both, the radius question that causes most errors, a ready-reference table, and why protocols should specify ×g rather than rpm.Browse sample prep reagents →1.118×10−5The universal constantr in cmRadius unit this formula expects× gWhat protocols should specifyrmaxUsually the radius to useKey takeawaysRCF = …

This article breaks down the glycoprotein Granulocyte-macrophage colony-stimulating factor (GM-CSF) detailing its structure, function and therapeutic uses. It also describes its role in immunity, inflammation and diseases such as cancer and AIDS. What are Colony Stimulating Factors? Colony stimulating factors (CSFs) are a group of glycoprotein cytokines that stimulate the production of blood cells. They are important for the treatment of cancer and other blood disorders. CSFs were first discovered in the 1960s, and since then, they have been used to treat millions of patients worldwide. There are four main t …

Immunology · Flow CytometryT Cell Immunophenotyping: Markers, Subsets and Panel DesignImmunophenotyping identifies cell populations by the proteins on their surface. For T cells that means resolving naive from memory, helper from cytotoxic, and effector from regulatory — distinctions that require the right combination of markers rather than any single one. This guide gives the marker sets for each major subset, how to combine them into a panel, and how the results are used.Browse flow antibodies →CD3The pan-T cell gating markerCD4 / CD8Helper and cytotoxic lineage splitCD45RA / RONaive versus memory discrimination5Subset marker tables in this guideKey takeawaysNo single marker defines a T ce …

Cell Death · BiomarkersCleaved Caspase-3: Activation, Function and Detection in ApoptosisCaspase-3 sits at the point where apoptotic signalling becomes irreversible. It is made as an inactive proenzyme and only becomes competent once cleaved by an initiator caspase — which is why the cleaved form, not total caspase-3, is the marker of apoptosis. This guide covers its structure and activation, the DEVD specificity that underpins every caspase-3 assay, how it is regulated, and how to detect it without over-reading the result.Browse caspase reagents →277Amino acids in procaspase-3DEVDRecognition motif it cleaves afterp17 + p12Subunits of the active enzyme8 and 9Initiator caspases that activate …

What is von Willebrand Factor? Von Willebrand Factor (VWF) is a crucial glycoprotein that plays a fundamental role in blood clotting and hemostasis. Produced by endothelial cells and megakaryocytes, VWF circulates in the bloodstream as large multimers. Its primary function is to mediate platelet adhesion at sites of vascular injury, forming a temporary platelet plug to stop bleeding. VWF also serves as a carrier protein for Factor VIII, protecting it and extending its availability during the clotting process. Von Willebrand Disease (VWD) is an inherited bleeding disorder caused by deficiencies or abnormalities in von Willebrand Factor. { "@context": …