Abstract
Hepatitis B X-interacting protein (HBXIP) is able to enhance migration of breast cancer cells. However, the role of HBXIP in regulation of complement-dependent cytotoxicity (CDC) in breast cancer is not understood. Here, we report that HBXIP contributes to protecting breast cancer cells from CDC by upregulating membrane-bound complement regulatory protein (mCRPs), including CD46, CD55 and CD59. We found that HBXIP upregulated mCRPs through activating p-ERK1/2/NF-κB. Interestingly, the knockdown of CD59 was able to block the HBXIP-enhanced breast tumor growth in animal. Thus, we conclude that HBXIP upregulates CD46, CD55 and CD59 through p-ERK1/2/NF-κB signaling to protect breast cancer from CDC. Crown
| Original language | English |
|---|---|
| Pages (from-to) | 766-771 |
| Number of pages | 6 |
| Journal | FEBS Letters |
| Volume | 586 |
| Issue number | 6 |
| DOIs | |
| State | Published - 23 Mar 2012 |
| Externally published | Yes |
Keywords
- CDC
- ERK1/2
- HBXIP
- NF-κB
- mCRP