During cleavage, β-catenin enters the nuclei and binds with Tcf3 to form a transcription factor that activates genes encoding proteins Siamois and Twin.

TLS Online TPP Program

#Id: 9912

#Unit 4. Cell Communication and Cell Signaling

Cyclooxygenase-2 (COX-2)

Enzyme responsible for the formation from arachidonic acid of prostaglandins and other pro-inflammatory mediators.

TLS Online TPP Program

#Id: 10286

#Unit 4. Cell Communication and Cell Signaling

T cells initiate the adaptive immune response by interacting MHC on antigen-presenting cells that have been exposed to pathogens. 

TLS Online TPP Program

#Id: 10287

#Unit 4. Cell Communication and Cell Signaling

T-Cell - Cells leaving the thymus are functional, mature T cells expressing unique and specific T-cell receptors (TCRs) that are both tolerant to self and restricted to self-MHC.

TLS Online TPP Program

#Id: 10288

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 10289

#Unit 4. Cell Communication and Cell Signaling

T-cell lineage

TLS Online TPP Program

#Id: 10290

#Unit 4. Cell Communication and Cell Signaling

T-Cell Development

1.Commitment

2.antigen receptor gene rearrangements

3.The selection and expansion of cells (β-selection