Expression of class II molecules by B cells is down-regulated by IFN- .

TLS Online TPP Program

#Id: 1431

#Unit 4. Cell Communication and Cell Signaling

Integrins can mediate outside-in and inside-out signaling

TLS Online TPP Program

#Id: 1432

#Unit 4. Cell Communication and Cell Signaling

Hemidesmosomes are integrin-containing anchoring junctions that attach cells to elements of the underlying extracellular matrix.

TLS Online TPP Program

#Id: 1433

#Unit 4. Cell Communication and Cell Signaling

Integrins have an important function in neuroregeneration after injury of the peripheral nervous system.

TLS Online TPP Program

#Id: 1434

#Unit 4. Cell Communication and Cell Signaling

Three major classes of animal-cell junctions: 

1. Anchoring junctions

2. Tight junctions

3. Gap junctions

TLS Online TPP Program

#Id: 1435

#Unit 4. Cell Communication and Cell Signaling

Four types of anchoring junctions are present in cells:

1. Adherens junctions

2. Desmosomes

3. Hemidesmosomes

4. Focal adhesions

TLS Online TPP Program

#Id: 1436

#Unit 4. Cell Communication and Cell Signaling

Adherens junctions 

Adhesion type- Cell-cell

Principal CAMs- Cadherins

Cytoskeletal attachment- Actin filaments