Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28731466
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cell+Death+Differ
2017 ; 24
(11
): 1937-1947
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Interaction of galectin-3 with MUC1 on cell surface promotes EGFR dimerization
and activation in human epithelial cancer cells
#MMPMID28731466
Piyush T
; Chacko AR
; Sindrewicz P
; Hilkens J
; Rhodes JM
; Yu LG
Cell Death Differ
2017[Nov]; 24
(11
): 1937-1947
PMID28731466
show ga
Epidermal growth factor receptor (EGFR) is an important regulator of epithelial
cell growth and survival in normal and cancerous tissues and is a principal
therapeutic target for cancer treatment. EGFR is associated in epithelial cells
with the heavily glycosylated transmembrane mucin protein MUC1, a natural ligand
of galectin-3 that is overexpressed in cancer. This study reveals that the
expression of cell surface MUC1 is a critical enhancer of EGF-induced EGFR
activation in human breast and colon cancer cells. Both the MUC1 extracellular
and intracellular domains are involved in EGFR activation but the predominant
influence comes from its extracellular domain. Binding of galectin-3 to the MUC1
extracellular domain induces MUC1 cell surface polarization and increases
MUC1-EGFR association. This leads to a rapid increase of EGFR
homo-/hetero-dimerization and subsequently increased, and also prolonged, EGFR
activation and signalling. This effect requires both the galectin-3 C-terminal
carbohydrate recognition domain and its N-terminal ligand multi-merization
domain. Thus, interaction of galectin-3 with MUC1 on cell surface promotes EGFR
dimerization and activation in epithelial cancer cells. As MUC1 and galectin-3
are both commonly overexpressed in most types of epithelial cancers, their
interaction and impact on EGFR activation likely makes important contribution to
EGFR-associated tumorigenesis and cancer progression and may also influence the
effectiveness of EGFR-targeted cancer therapy.