home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Cancer - Principles & Practice of Oncology
/
Oncology.iso
/
PPO
/
CHAP6
/
F11.CAP
< prev
next >
Wrap
Text File
|
1999-06-07
|
837b
|
13 lines
FIGURE 6-11. Overexpression of bcl-2 inhibits apoptotic cell death
following many different stimuli. The current model of how bcl-2
accomplishes this is based on the observation that bcl-2 protein binds
to bax protein. It has been proposed that bax protein binding to
itself drives the cell toward apoptosis and that high levels of bcl-2
prevent bax homodimerization by binding up the bax. A number of
different proteins with homologies to bcl-2 and bax have been
identified, some of which are proapoptotic (listed as Baxlike) and
some of which appear to be antiapoptotic (listed as bcl-2-like). There
may be cell-type specificities in the utilization of these different
proapoptotic and antiapoptotic proteins. (Model based on the work of
Korsmeyer and colleagues. Cell 1993;74:609)