10748 results for 'complement factor h replac 4 cover'

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The Complement System Function Gone are the days when the complement system was considered solely a companion of its impressive adaptive immune system count ...

The intricate process of stem cell differentiation and self-renewal is a cornerstone of developmental biology and regenerative medicine. At the heart of this complex regulatory mechanism are tran ...

Cell Signalling · Growth FactorsGrowth Factors: Families, Receptors and Signalling PathwaysGrowth factors are secreted proteins that instruct cells whether to divide, differentiate, migrate or surviv ...

In the intricate ballet of cellular communication and regulation, growth factors play pivotal roles in guiding the processes of cell growth, division, and differentiation. These proteins are esse ...

Vascular Endothelial Growth Factor A (VEGFA) is a pivotal signaling protein involved in both vasculogenesis and angiogenesis, processes essential for the formation of blood vessels during embryon ...

Leukemia Inhibitory Factor (LIF) is a cytokine that plays a crucial role in various physiological processes within the human body. It has gained significant attention in the field o ...

Introduction Tumorigenesis, the process by which normal cells transform into cancer cells, is a multifaceted and complex event influenced by various internal and external factors. Among th ...

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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 endo ...

Leukemia Inhibitory Factor and JAK-STAT Signalling Pathway Leukemia inhibitory factor (LIF) is a cytokine that belongs to the interleukin-6 (IL-6) family of cytokines. Other members of ...

What is Hepatocyte Growth Factor? Hepatocyte growth factor (HGF) is a cytokine that is mainly produced by the liver. HGF is a pleiotrophic cytokine that regulates cell growth, motili ...

The Role of CTLA-4 in Breast Cancer: Implications for ImmunotherapyBreast cancer (BC) remains one of the most prevalent malignancies affecting women worldwide, with significant morbidity and mortalit ...

Oct-4 stem cells, also known as Octamer-binding transcription factor 4 stem cells, are a fascinating area of study in the field of stem cell research. These stem cells hold great promise due to t ...

CD Markers Cluster of Differentiation (CD) markers play an important role in the differentiation of B cells, T cells and NK (natural killer) c ...

For decades, cancer drug development has focused on blocking proteins—inhibiting enzymes, antagonizing receptors, disrupting signaling pathways. Yet this approach leaves a vast landscape of disease- ...

Immunotherapy has become a central pillar in the fight against cancer, with a focus on enhancing the body’s natural defenses. Among the molecules at the forefront of immunotherapeutic re ...

by Ryan Wallis, PhD student, QMUL, Blizard Institute The microscopic world of cell biology was first explored by Robert Hooke in the 17th century and published in his work, Microgr ...

Exploring IL-18: A key cytokine in inflammation and disease. Key Takeaways: IL-18, a pro-inflammatory cytokine, plays a pivotal role in immune responses, particularly in inducing Type II ...

Breakthrough Discovery: Epstein-Barr Virus Identified as Primary Trigger for Lupus A groundbreaking study published in November 2025 has provided the most definitive evidence to date that the common ...

Th17 cells, a subset of T helper cells characterized by their production of interleukin-17 (IL-17), play a significant role in the immune system's response to pathogens and in the pathology of a ...

Toll-Like Receptors The innate immune response has come under the spotlight in recent years due to its central role in propagating the pathoge ...

Immunodetection · ProtocolsSecondary Antibody Incubation: Times, Conditions and TroubleshootingThe secondary antibody step determines how much signal you get and how much background comes with it. In ...

Innate Lymphoid Cells (ILCs) represent a fascinating component of the immune system, playing a crucial role in maintaining tissue homeostasis and mounting rapid responses against pathogens. Th ...

Immunotherapy has revolutionized cancer treatment by harnessing the body's immune system to fight malignancies. Among the notable advancements in this field is the development of immune ...

What You Need to Know About IpilimumabWhat is Ipilimumab?Ipilimumab is a monoclonal antibody that targets CTLA-4, a protein involved in downregulating the immune system, to boost the bo ...

Embryonic induced pluripotent stem cells (iPSCs) hold immense potential in the field of regenerative medicine due to their ability to differentiate into various cell types. Understanding the diff ...

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T cells are central players in adaptive immunity, responsible for recognizing and eliminating infected or aberrant cells. Upon encountering antigens, T cells undergo clonal expansion and diffe ...

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Dendritic cells (DCs) are pivotal in the immune system, orchestrating innate and adaptive immune responses. Understanding their developmental lineage pathway is crucial in immunology, particularl ...

In the dynamic landscape of biomedical research, organoids have emerged as a groundbreaking tool, offering three-dimensional (3D) models that mimic the complex architecture and functionality of h ...

BDNF Overview Brain-derived neurotrophic factor (BDNF) is a central mediator of neuroplasticity, a term used to describe the ability of neuron ...

Biomarkers · InflammationC-Reactive Protein (CRP): Structure, Function and Clinical UseCRP is the most widely measured marker of inflammation in medicine — fast to rise, fast to fall, and entirely no ...

The selection of a secondary antibody is a critical step in the experimental design of various immunodetection methods, including Western Blot, ELISA, immunohistochemistry (IHC), and immunofluore ...

Alzheimer's disease stands as a formidable challenge in the realm of neurological disorders, characterized by its progressive nature and profound impact on cognitive functions. This article delv ...

By Sinead Kinsella PhD The Ubiquitin Proteasome System (UPS) The Ubiquitin Proteasome System (UPS) is a regulatory machinery for protein turnover in ...

Immunology · Antigen PresentationDendritic Cells: Markers, Activation and SubtypesDendritic cells are the professional antigen-presenting cells that decide whether an immune response happens at all.

Nuclear Factor Erythroid 2–Related Factor 2 (NRF2) orchestrates a principal defense mechanism against oxidative stress and plays a pivotal role in inflammation and disease pathogenesis. This arti ...

HMGB1 Functional Overview High mobility group box 1 ( HMGB1), a member of the high-mobility group (HMG) family, was first identified in the thymus in 1973 a ...

Danka Kozareva PhD Candidate, University College Cork The generation of neurons from stem cells The process of generating ...

Parkinson's disease (PD) is a progressive neurological disorder that primarily affects the motor system, leading to a wide array of symptoms ranging from tremors and stiffness to bradykinesia (sl ...

What are Stem Cells? Stem cells are primitive, undifferentiated, and unspecialised cells that are found in multicellular organism ...

Hypoxia, or low oxygen levels, poses a significant challenge to cells, necessitating rapid and efficient adaptation mechanisms. The Hypoxia-Inducible Factor (HIF) pathway is a well-known regul ...

The use of M2 Supplement in organoid culture has revolutionized the way researchers cultivate and maintain these three-dimensional (3D) cellular models. Organoids—self-organizing cell cl ...

The orchestration of angiogenesis, the process by which new blood vessels form from pre-existing ones, is a complex symphony regulated by various molecular players. At the forefront of this in ...

Pancreatic cancer survival rates Despite recent advances in our understanding of this disease, pancreatic cancer is one of the world’s most lethal maligna ...

Transforming Growth Factor-Beta (TGF-β) signaling pathway plays a pivotal role in orchestrating various cellular processes, ranging from embryonic development to tissue homeostasis and immun ...

Cell Culture · ProtocolsCell Synchronisation Methods: Protocols for G1, S, G2 and M Phase ArrestAn asynchronous culture contains cells at every stage of the cycle at once, so any measurement is an av ...

By Rachel Bleach, PhD Student, RCSI By the age of 79 years, 1 in 14 women will develop breast cancer (Global Burden of Disease Cancer 2017). Beatson reporte ...

By Eoin Mac Réamoinn Toll-like receptors (TLRs) are renowned for their fundamental roles in innate sensing and initiating inflammatory responses. TLR ...

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By Juan Quintana, PhD student, University of Edinbrugh What are Neglected Tropical Diseases (NTDs)? The World Health Orga ...

Shane O’Grady, PhD student, RCSI Cancer is a disease that will, unfortunately, touch all of our lives at some point, directly or indirectly. Despite decades ...

Flow cytometry is a powerful analytical technology employed in cell biology, immunology, and oncology research. It enables the rapid measurement of physical and chemical characteristics of cells ...

Haematology · HaemostasisPlatelets: Formation, Structure, Activation and Clinical SignificancePlatelets are anucleate fragments shed from megakaryocytes, and they carry out primary haemostasis — adhe ...

by Ryan Wallis, PhD Aging and Disease Imagine a world where everything you do is missing just a little piece and as time goes on you start to lose sense entirely. This is the dev ...

Key Points Non-alcoholic fatty liver disease (NAF ...

RIG-I: Antiviral Properties in COVID-19 (SARS-CoV-2) Infection Key Points RIG-I is a cytosolic RNA ...

What is preeclampsia? According to the World Health Organization (WHO), one in ten pregnant women is affected by hypertensive disorders, and preeclampsia ...

Introduction to CD80 and Its Role in Immune Activation CD80 is a critical immune checkpoint molecule that plays an essential role in T cell activation through co-stimulatory pathway ...

By Dr. Lisa Dwane, Postdoctoral Researcher, Royal College of Surgeons in Ireland The first link between estrogen and breast cancer was made in the ...

A wide variety of cell surface receptors activate Ras GTPase, including the tyrosine receptor linked to the epidermal growth factor receptor (EGFR) (Wells 1999). Upon receptor stimulation, son ...

For decades, the primary strategy in cancer treatment has been to trigger apoptosis, a form of programmed cell death, in malignant cells. However, many cancers develop resistance to apoptosis-induci ...

Cell Biology · PathologyNecrosis: Types, Causes, Mechanisms and How It Is MeasuredNecrosis is cell death accompanied by membrane rupture and release of intracellular contents — which is what makes it ...

Quick Facts About UlviprubartWhat is Ulviprubart?Ulviprubart is an experimental complement inhibitor designed to modulate immune responses in autoimmune diseases.What is the mechan ...

Idiopathic Pulmonary Fibrosis Idiopathic Pulmonary Fibrosis (IPF) is a chronic, irreversible and ultimately fatal disease characterized by pro ...

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Chemistry · Acid-BaseDeprotonation: Mechanism, pKa and Choosing the Right BaseDeprotonation is the removal of a proton from a molecule to give its conjugate base. Whether it happens, and how complete ...

Quick Facts About NarsoplimabWhat is Narsoplimab?Narsoplimab is a human monoclonal antibody that targets MASP-2, a key enzyme in the lectin pathway of the complement system.What is the ...

Explore the complexities of Interleukin-10 (IL-10) signaling and regulation, a crucial aspect in immune response modulation and its dual roles in cancer development and therapy. Key Takeaways ...

The Brain's Sentinels: How Microglia Shape Neuroinflammation in Disease In the intricate landscape of the human brain, a silent, ever-watchful guardian stands ready to defend against injury and inva ...

Immunology · Antibody ProductionHybridoma Technology: How Monoclonal Antibodies Are MadeHybridoma technology, pioneered by Georges Köhler and César Milstein in 1975, is the method that made monoclona ...

One of the greatest challenges in cancer therapy is how tumors evade immune detection. Among the mechanisms cancer cells exploit, the CD47 pathway has emerged as a major player in helpin ...

Cell Culture · ProtocolsPassaging Hybridoma Cells: A Detailed GuideHybridomas are productive but temperamental. They grow in suspension, are sensitive to shear and to overgrowth, and — the problem th ...

Phosphorothioate is a chemical modification commonly used in oligonucleotide-based therapies to enhance the stability and efficacy of therapeutic nucleic acids. In this modification, one ...

You are only part human. In some ways, you are as much bacteria as you are mammal, and in some ways bacteria make up far more of you than your own familiar cells and genes! It is becoming ...

By Charlotte O'Donnell PhD A role for IL-33 in Barrier Function and Epithelial Wound Healing ...

Sample Preparation · ImmunoassaySerum vs Plasma: Key Differences and When to Use EachSerum and plasma come from the same blood draw but are not interchangeable. One is collected after clotting, the o ...

By Shane Houston, PhD Candidate Queen’s University Belfast Cancer is an age old adversary of the human race. This out-of-control growth of abnormal cells has been a shadow over human health ...

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Immunohistochemistry (IHC) stands as a critical tool in the realm of biomedical research and diagnostic practices, offering a bridge between molecular insights and the intricate visualization of ...

Flow Cytometry · GatingExcluding Doublets in Flow Cytometry: Pulse Geometry and Gating StrategyTwo cells passing the laser together are recorded as one event, with roughly double the signal. In DNA c ...

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Adipocytokines or adipokines are bioactive molecules that are produced by adipose tissue. They comprise cytokines, chemokines coagulation factors and factors involved ...

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What is DNA Polymerase Fidelity? The fidelity of a DNA polymerase is the result of accurate replication of a desired template. The fidelity of DNA polymerase ...