10734 results for 'PI 3-Kinase p85 alpha'

HER2 has no ligand. HER3 has no kinase. Together they are the most potent signalling pair in human biology. That single sentence explains most of what is strange about this receptor family and all of

Interferons (IFNs) are a group of signalling proteins that are produced and released from cells in response to viral infection and other stimuli such as normal and tumour cell survival and

LATS kinases belong to a family of proteins that, in mammals, are comprised of two isoforms, LATS1 and LATS2. Originally identified in Drosophila melanogaster as Warts kinase, LATS1 and LATS2 se

Imagine a microscopic sniper, capable of delivering a lethal blow to a single cancer cell while leaving its healthy neighbors virtually untouched. This is the promise of targeted alpha therapy, a rev

Polo-like kinase (Plk1) Polo-like kinase (Plk1), is a serine/threonine kinase that is active during mitosis (Hamanaka et al., 1995). Its name is derived from its origi

Cell Signalling · EnzymologyProtein Kinases: Function, Classification, Structure and InhibitorsProtein kinases transfer a phosphate group from ATP onto specific residues of target proteins, switching

Cell Cycle · KinasesCyclins and Cyclin-Dependent Kinases: Regulation, Substrates and Mitotic ControlCDKs are inactive on their own. They require a cyclin partner, and because cyclin levels rise and fa

Immunology · Cytokine SignallingTNF-alpha and Inflammation: Structure, Signalling & TherapyTumour necrosis factor alpha (TNF-α) is one of the most important pro-inflammatory cytokines in the body. Sig

After probably a round or two of interviews and a PhD in your pocket you would think that proving yourself in your new lab would not be an issue. After all, they did hire you because you were t

Understanding Lag-3, Tim-3, and TIGIT: Key Players in T Cell RegulationThe immune system's ability to regulate T cell responses is crucial for maintaining homeostasis and combating diseases such as ca

Epidermal Growth Factor (EGF) is a protein that stimulates cell growth and differentiation by binding to its receptor epidermal growth factor receptor (EGFR) which triggers ligand-induced d

Exploring the Role of TIM-3/Gal-9 in Antiparasitic ImmunityIntroductionThe immune system is a complex network of cells and molecules that work together to defend the body against pathogens, including

Exploring LAG-3: A Key Regulator in T Cell ImmunityLAG-3 (Lymphocyte Activation Gene-3) is an inhibitory receptor that plays a crucial role in modulating T cell activation and effector functions. This

PI3K does not switch on a protein — it rewrites a membrane. Everything downstream follows from one chemical event: the 3-hydroxyl of a phosphoinositide is phosphorylated, PIP₂ becomes PIP₃, and every

Cell Signalling · MetabolismInsulin Signalling & Receptor Tyrosine KinasesInsulin controls metabolism and growth through the insulin receptor — a receptor tyrosine kinase that branches into the

Cell Signalling · InflammationMAPK Signalling in Inflammatory Cytokine PathwaysMAPK cascades convert receptor engagement into changes in gene expression, and in inflammation they do it in both directi

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

The p38 MAPK signaling pathway is an intracellular signaling pathway that plays a crucial role in cellular responses to various stressors and inflammatory stimuli. It is a part of the larger MAPK

Signal 1 tells a T cell what it is looking at; signal 2 tells it whether to care. The same peptide–MHC engagement that launches a productive effector response can just as easily install an anergy pro

Almost all of the TGF-β in a tissue is already there, and almost none of it is active. That single fact reorganises how the pathway should be studied. Unlike most cytokines, TGF-β is deposited into t