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How are helper t cells activated?

Updated: 8/10/2023
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9y ago

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It is a type of leukocyte, or white blood cell, but it has no ability to ingest or destroy invading bacteria. It activates other white blood cells or antibodies to react with the invading organism.

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12y ago
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9y ago

The helper t cells are activated on the surface of antigen-presenting cells when they are presented with peptide. When they are activated they become effector cells.

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13y ago

From what I know, Helper T cells bond with antigens on MHC II

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Q: How are helper t cells activated?
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Related questions

How do killer cells work?

Killer t cells are activated by helper t cells. The Helper t cells are alerted by the macrophage that has engulfed the virus. It grows antigens to alert the helper t cells. The killer t cells are like white blood cells, there purpose is to fight pathogens.


B cells interacting with helper T cells are stimulated to differentiate when?

Helper t cells release cytokines


How do T-Cells fight infection?

Helper T cells activate killer T cells.


What is the function of T-helper cells?

T cells destroy pathogens.


What is the function of the T helper cells?

T cells destroy pathogens.


Which cells are destroyed in an aids infection?

HIV attacks and kills CD4 helper T cells.


How do the helper T cells first become part of the immune response to invasion by a virus?

T helper cells (CD4 T cells) serve to guide the development of adaptive (acquired) immune responses. Once they are activated and instructed by cells of the innate (natural) immune system, they "help" to activate cytotoxic (CD8) T cells and B cells (antibody producers). In the case of viruses T helper cells, once polarized, will produce signaling molecules (such as IL-2) that alert the CD8 T cells to the infection and will help activate B cells and will instruct them as to which flavor or antibody is best to produce. The CD4 T cells will also release other signaling proteins (such as Interferons) that help get rid of the virus.


Do helper T cells coordinate the activities of other T cells?

Yes, and B cells.


How do helper T cells first become part of the immune system response to invasion by a virus?

T helper cells (CD4 T cells) serve to guide the development of adaptive (acquired) immune responses. Once they are activated and instructed by cells of the innate (natural) immune system, they "help" to activate cytotoxic (CD8) T cells and B cells (antibody producers). In the case of viruses T helper cells, once polarized, will produce signaling molecules (such as IL-2) that alert the CD8 T cells to the infection and will help activate B cells and will instruct them as to which flavor or antibody is best to produce. The CD4 T cells will also release other signaling proteins (such as Interferons) that help get rid of the virus.


What sends word to killer T cells and actavaite B cells?

Helper (CD4+) T Cells


Which immune cells are attracted to the chemicals secreted by helper T cells?

Cytotoxic t cells and b lymphocytes!


Do activated Tc cells only turn in to cytotoxic T-lymphocytes or do Tc differentiate into memory cells as well?

Activated Tc cells can proliferate into cytotoxic t-lymphocytes and Memory cytotoxic t cells as well.