211 results for 'granzyme'

Apoptosis is not one pathway but three routes into the same execution machinery. A death ligand at the surface, a mitochondrion that loses outer-membrane integrity, and a granzyme delivered by a cyto

A natural killer cell decides by subtraction. It carries no rearranged antigen receptor and no memory of what it has seen. It presses a panel of germline-encoded receptors against a target and integr

CD155 is read by four different receptors, and only one of them turns the killing programme on. The nectin and nectin-like ligands induced on stressed and transformed cells are simultaneously an acti

Immunology · T LymphocytesCD8+ T Cells: Cytotoxic Mechanisms, Memory and ExhaustionCD8+ T cells kill infected and transformed cells directly, and they do it with a specificity nothing else in the immu

An antibody's variable domains decide what it binds. Its Fc decides what happens next — and that is not a detail of formulation, it is half the mechanism. Which Fcγ receptor the constant region engag

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

A chimeric antigen receptor is a synthetic protein wired into a real signalling pathway. The extracellular half is an antibody fragment; everything below the membrane is borrowed from the T-cell rece

A T cell does not choose which tissue to defend. The tissue chose it, during priming. A naive T cell has no tropism at all; it acquires one from the dendritic cell that activates it, and the instruct

The most abundant immunosuppressive molecule in a solid tumour is not a protein. It is adenosine — a metabolite, produced from ATP in two enzymatic steps, at concentrations orders of magnitude above

A depletion experiment is only as good as the depletion you can prove. Injecting a functional-grade antibody and assuming the population is gone is the most common failure mode in in vivo immunology.

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Transplant rejection is the fastest, most violent adaptive immune response a body can mount — and it is a response to a molecule rather than to a pathogen. Somewhere between one and ten per cent of a

PD-1 gets the attention, but it is one brake among many — and the others do not work the same way. The co-inhibitory receptors are routinely drawn as interchangeable stop signs on a T cell. They are

The immune system is the body’s main defence against infection. In order to function properly, the immune system must be able to detect and protect against infinite agents such as

Natural killer (NK) cells are a crucial component of the innate immune system and play a significant role in eliminating tumor cells. Unlike T cells, NK cells can recognize and kill cance

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T Cell Types, Activation, Polarization & Function A comprehensive guide to T cells! Introduction T-cells, vital components of the immune system, encompass vari

PD-1 does not switch a T cell off; it moves the threshold. Engagement of PD-1 by PD-L1 recruits a single phosphatase into the immunological synapse, and that one recruitment event is enough to collap

Quick Facts About ZolbetuximabWhat is Zolbetuximab?Zolbetuximab is a monoclonal antibody that targets Claudin 18.2, a protein overexpressed in gastric and pancreatic cancers, enhancing t

The fight against B cell cancers, a challenging spectrum of hematologic malignancies, has entered a new era with the introduction of rituximab biosimilars. These biosimilars promise to extend the

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For decades, the fight against cancer has been a relentless battle of incremental gains. While immunotherapies like CAR-T cell therapy have offered revolutionary hope, their personalized nature, high

By Charlotte O'Donnell PhD The genes of the IL-36 family members are located in a cluster on chromosome 2 [1]. All three activating ligands, IL-36α, IL-36β a

Introduction to SLAMF7 in Cancer Immunotherapy SLAMF7, also known as Signaling Lymphocytic Activation Molecule F7, is a surface receptor found on natural killer (NK) cells, T cells, plasm

At Assay Genie we have created a comprehensive guide outlining everything you need to know about apoptosis! Key Takeaways: Apoptosis is a programmed cell death process, vital for tissue

Immunology · Cell BiologyCells of the Innate Immune System: Types, Functions and MarkersThe innate immune system responds within minutes, without prior exposure, using cells that recognise conserved m

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 n

Cell Biology · Programmed Cell DeathApoptosis: Your Complete Guide to Intrinsic & Extrinsic PathwaysApoptosis is programmed cell death — the controlled, non-inflammatory removal of damaged or unwanted

Imagine engineering a patient's own immune cells into precision-guided missiles against cancer—cells that can seek out and destroy tumors with remarkable specificity. This is the promise of CAR-T cell