Cancer immunotherapy | The PD-L1 pathway

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Cancer immunotherapy | The PD-L1 pathway

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Күн бұрын

The role of the immune system is to protect the body from foreign invaders. In responding to cancer, T cells play a central role in the immune system. Programmed death ligand 1 (PD-L1) is one of the inhibitory ligands that, under normal conditions, help maintain immune homeostasis. In many cancers, however, PD-L1 can help tumour cells evade immune system surveillance.
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Пікірлер: 19

@braveheart4280 Жыл бұрын

best way to express this topic is in this video... thanks

@roche Жыл бұрын

Thank you for your kinds words. That's so good to hear. We appreciate you taking the time to share it with us! Have a nice day ahead!

@JMSouchak Жыл бұрын

Excellent and quick PD-1 explanation! Thank you!

@user-bm5zz1rb3j 2 жыл бұрын

Need more people so spread this video more

@jhonatanpiffer676 3 жыл бұрын

That's a very good explanation! Congratulations

@sopaanshukla468 Жыл бұрын

My mother has PDL1 rating of 20. The Assay used to test PDL1 is DAKO-22c3. Can any one tell me how well the medicine - Pembrolizumab - is effective to damp PDL1 interaction woth T- Cells

@ahmedibrahim-te4sx 6 жыл бұрын

What can we done to solve the problem of PD overexpression ?

@mikeletterst9882 6 жыл бұрын

Great question, monoclonal antibodies against PD-1 have been developed that prevent the binding of PD-1 to PD-L1; this block T cell inhibition, thereby restoring the cytotoxic response and promoting apoptosis of tumor cells. Anti-PD1 therapy is used in advanced melanoma and certain types of lung cancer. Unfortunately, the clinical effectiveness of PD-1 immune blockade is still uncertain.

@jwbbccp 4 жыл бұрын

Mike Letterst Great answer! Moreover, I believe there is additional concern that PD-1 blockade may significantly increase the risk for autoimmune disease, hence why it is only being used in cases of advanced melanomas and similarly “untreatable” fatal conditions... basically, when the increased risk of lifelong autoimmune disease is outweighed by the higher probability of death.

@khouse1554 4 жыл бұрын

Jon Wood yea and at the end of the day because of that patients can develop resistance to immunotherapy. Need to figure out ways to indirectly also downregulate PD-L1 on cancer cell to improve this blockade

@rosylindt7255 3 жыл бұрын

@@mikeletterst9882 It is also important to note that patients response depends on other factors such as the tumo microenvironment, the tumor mutation profile and it is also specific to individual patient (this part being the key mystery). This therapy has been used to treat PD1+ tumors but with poor response but other tumors such as melanoma and lung cancer are responding well to these therapies