cancer neoantigens

For cells to become cancerous, they must have mutations that cause uncontrolled replication and mutations that prevent that uncontrolled replication from causing apoptosis. Because cancer requires several mutations, it often begins with damage to mutation-preventing mechanisms. As such, cancers often have many mutations not required for their growth, which often cause changes to structure of some surface proteins.

The modified surface proteins of cancer cells are called "neoantigens". An approach to cancer treatment that's currently being researched is to identify some specific neoantigens of a patient's cancer, and create a personalized vaccine to cause their immune system to recognize them. Such vaccines would use either mRNA or synthetic long peptides. The steps required are as follows:

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Outline:

(00:06) cancer neoantigens

(01:38) protein characterization

(01:48) sequencing

(02:22) MHC mass spec

(02:58) comments on AlphaFold

(04:28) related methods

(04:32) cryo-EM

(05:13) nanopore protein analysis

(05:46) monoclonal antibodies

(06:34) affimers

(07:10) aptamers

(07:36) other cancer treatments

(07:48) replication disruptors

(08:32) mitochondria-mediated apoptosis

(09:14) vaccine production

(11:09) conclusion

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First published:

Source:

Linkpost URL:
https://www.bhauth.com/blog/biology/cancer vaccines.html

Narrated by TYPE III AUDIO.