Immune Checkpoint Deletion
Immune Checkpoint Deletion - Related Videos
11:24
Rapid Deletion Production in Fungi via Agrobacterium Mediated Transformation of OSCAR Deletion Constructs
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Cited by 8 •
2017
Gene deletion mutants generated through homologous recombination are the gold standard for gene function studies. The OSCAR (One Step Construction of Agrobacterium-Recombination-ready-plasmids) method for rapid generation of deletion constructs is described. Agrobacterium mediated fungal transformation follows. Finally, a PCR based confirmation method of gene deletions in fungal transformants is presented.
10:55
Study of the DNA Damage Checkpoint using Xenopus Egg Extracts
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Cited by 35 •
2012
Xenopus egg extract is a useful model system to investigate the DNA damage checkpoint. This protocol is for the preparation of Xenopus egg extracts and DNA damage checkpoint inducing reagents. These techniques are adaptable to a variety of DNA damaging approaches in the study of the DNA damage checkpoint signaling.
02:19
The Spindle Assembly Checkpoint
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2023
The spindle assembly checkpoint is a molecular surveillance mechanism ensuring the fidelity of chromosome segregation during anaphase. The checkpoint monitors the completion of all the prerequisite steps before chromosome segregation to determine whether the segregation process should proceed or be delayed. Many proteins function together to control the spindle assembly checkpoint. Mutations affecting these proteins may allow cells to proceed into anaphase prematurely, resulting in the...
02:19
The Spindle Assembly Checkpoint
0 Views •
2021
The spindle assembly checkpoint is a molecular surveillance mechanism ensuring the fidelity of chromosome segregation during anaphase. The checkpoint monitors the completion of all the prerequisite steps before chromosome segregation to determine whether the segregation process should proceed or be delayed. Many proteins function together to control the spindle assembly checkpoint. Mutations affecting these proteins may allow cells to proceed into anaphase prematurely, resulting in the...
14:07
Genome-wide Gene Deletions in Streptococcus sanguinis by High Throughput PCR
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Cited by 9 •
2012
An efficient genome-wide single gene mutation method has been established using Streptococcus sanguinis as a model organism. This method has achieved via high throughput recombinant PCRs and transformations.
FAQs
Removing inhibitory checkpoint signaling can increase T-cell activation, proliferation, or effector function by reducing signals that normally restrain these responses. The resulting change is not limited to one stage of immunity, because checkpoint pathways influence how strongly immune cells respond and interact. Studying these shifts helps clarify which regulatory mechanisms control pathogen-directed immune activity.
Checkpoint pathways help limit immune activation, so their loss may strengthen responses against viruses or microbes while weakening the restraints that protect healthy tissues. This creates a functional trade-off: improved immune activity may support pathogen control, but excessive activation can promote inflammation, tissue damage, or autoimmunity. The balance depends on how strongly the disrupted pathway regulates immune responses.
Researchers can examine changes in T-cell activation, proliferation, and effector function, as well as altered interactions between immune cells. These observations show how a checkpoint contributes to immune regulation rather than merely indicating whether a pathogen is controlled. In infection models, the findings can help connect molecular inhibition with broader antiviral or antimicrobial immune behavior.
In immunology and infection research, investigators use this experimental strategy to reveal how checkpoint molecules regulate antiviral and antimicrobial responses. Comparing immune behavior with and without the inhibitory component can expose its contribution to pathogen control, immune-cell interactions, and tolerance. The approach therefore serves as a way to investigate regulatory mechanisms underlying both protective and harmful immune outcomes.
The strategy can help determine whether a checkpoint restrains pathogen-directed immunity, influences communication between immune cells, or contributes to inadequate responses during chronic infection. It can also show how removing that restraint changes the relationship between immune activation and tissue protection. These outcomes provide mechanistic context for evaluating checkpoint pathways as potential therapeutic targets.
Enhanced immune-cell activity can have harmful consequences if inhibitory regulation is removed too broadly or strongly. Investigators therefore need to interpret increased pathogen control alongside possible excessive inflammation, tissue damage, and autoimmunity. These risks are central to assessing the therapeutic relevance of checkpoint deletion for cancer and chronic infections, where stronger immunity may also disrupt immune tolerance.