Immunostaining Protocol: P-Stat3 (Xenograft and Mice)
oleh: Alexandre Calon, Elisa Espinet, Sergio Palomo-Ponce, Daniele Tauriello, Mar Iglesias, María Céspedes, Marta Sevillano, Cristina Nadal, Peter Jung, Xiang Zhang, Daniel Byrom, Antoni Riera, David Rossell, Ramón Mangues, Joan Massague, Elena Sancho, Eduard Batlle
| Format: | Article |
|---|---|
| Diterbitkan: | Bio-protocol LLC 2014-05-01 |
Deskripsi
We sought to understand the mechanisms behind the potent effect of stromal TGF-beta program on the capacity of colorectal cancer (CRC) cells to initiate metastasis. We discovered that mice subcutaneous tumors and metastases generated in the context of a TGF-beta activated microenvironment displayed prominent accumulation of p-STAT3 in CRC cells compared with those derived from control cells. STAT3 signaling depended on GP130 as shown by strong reduction of epithelial p STAT3 levels upon GP130 shRNA-mediated knockdown in CRC cells.