HBXIP upregulates CD46, CD55 and CD59 through ERK1/2/NF-κB signaling to protect breast cancer cells from complement attack

  • Wenjing Cui
  • , Yu Zhao
  • , Changliang Shan
  • , Guangyao Kong
  • , Nan Hu
  • , Yiwen Zhang
  • , Shuai Zhang
  • , Weiying Zhang
  • , Yingyi Zhang
  • , Xiaodong Zhang
  • , Lihong Ye

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

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 languageEnglish
Pages (from-to)766-771
Number of pages6
JournalFEBS Letters
Volume586
Issue number6
DOIs
StatePublished - 23 Mar 2012
Externally publishedYes

Keywords

  • CDC
  • ERK1/2
  • HBXIP
  • NF-κB
  • mCRP

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