2017
DOI: 10.1038/bjc.2017.23
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MT4-MMP and EGFR expression levels are key biomarkers for breast cancer patient response to chemotherapy and erlotinib

Abstract: Background:Triple-negative breast cancers (TNBC) are heterogeneous cancers with poor prognosis. We aimed to determine the clinical relevance of membrane type-4 matrix metalloproteinase (MT4-MMP), a membrane type matrix metalloproteinase that interacts with epidermal growth factor receptor (EGFR) overexpressed in >50% of TNBC.Methods:We conducted a retrospective immunohistochemical analysis on human TNBC samples (n=81) and validated our findings in in vitro and in vivo assays.Results:Membrane type-4 matrix meta… Show more

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Cited by 16 publications
(22 citation statements)
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“…It was initially characterized as an interstitial collagenase which degraded ECM by directly cleaving its substrate and activating a secretory matrix metalloprotease, MMP-2 (Ohuchi et al, 1997;Sato et al, 1994;Al-Raawi et al, 2011;Clark et al, 2007). Although other membrane-type metalloproteases are also involved in cancer metastasis, their molecular role in ECM remodeling is less explored (Wells et al, 2015;Tatti et al, 2011Tatti et al, , 2015Shen et al, 2017;Yip et al, 2017;Huang et al, 2009;Wu et al, 2017;Jiang et al, 2017). MT2-MMP is overexpressed in breast cancer and is involved in basement membrane transmigration in breast cancer (Kousidou et al, 2004;Benson et al, 2013;Hotary et al, 2006;Ota et al, 2009), but the molecular mechanism governing its role in cancer metastasis is unexplored.…”
Section: Mt1-mmp-mediated Ecm Degradationmentioning
confidence: 99%
“…It was initially characterized as an interstitial collagenase which degraded ECM by directly cleaving its substrate and activating a secretory matrix metalloprotease, MMP-2 (Ohuchi et al, 1997;Sato et al, 1994;Al-Raawi et al, 2011;Clark et al, 2007). Although other membrane-type metalloproteases are also involved in cancer metastasis, their molecular role in ECM remodeling is less explored (Wells et al, 2015;Tatti et al, 2011Tatti et al, , 2015Shen et al, 2017;Yip et al, 2017;Huang et al, 2009;Wu et al, 2017;Jiang et al, 2017). MT2-MMP is overexpressed in breast cancer and is involved in basement membrane transmigration in breast cancer (Kousidou et al, 2004;Benson et al, 2013;Hotary et al, 2006;Ota et al, 2009), but the molecular mechanism governing its role in cancer metastasis is unexplored.…”
Section: Mt1-mmp-mediated Ecm Degradationmentioning
confidence: 99%
“…The low interest for this protease is due to the fact that the overexpression of MT4-MMP was not detected in transcriptomic studies. However, analyses by immunohistochemistry showed that the protein is very abundant in the tumor compartment of human breast cancers [13,38,54]. Several hypotheses can be envisaged, such as: (1) The existence of several transcripts resulting from alternative splicing that would not be detected in the transcriptomic analyses, (2) post-transcriptional regulation via miRNAs, (3) translation control, and/or (4) epigenetic mRNA changes [73].…”
Section: Discussion and Perspectivesmentioning
confidence: 99%
“…Indeed, MT4-MMP stimulates cell proliferation by interacting with EGFR and enhancing its activation in response to its ligands, Epidermal Growth Factor (EGF) and Tumor Growth Factor (TGF) [38]. Moreover, superimposition of EGFR and MT4-MMP has been observed in human triple-negative breast cancer (TNBC) patients [54]. Interestingly, MT4-MMP expression has been recently identified as a biomarker for TNBC patient responses to chemotherapy and to a combination of anti-EGFR drugs such as Erlotinib and Palbociclib, an inhibitor of Cyclin-dependent kinases 4 and 6, which are involved in the cell cycle [54,55].…”
Section: Cancermentioning
confidence: 99%
See 1 more Smart Citation
“…Interestingly, this result was associated with increased cyclins and CDK activities and RB phosphorylation (12). Through IHC analysis, we previously reported that MT4-MMP is coexpressed with EGFR in approximately 80% of human TNBC samples (15). Here, we investigate the relevance of targeting EGFR and CDK4/6 in TNBCs expressing MT4-MMP, EGFR, and RB.…”
Section: Introductionmentioning
confidence: 88%