2016
DOI: 10.3892/or.2016.4875
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Knockdown of TAZ modifies triple-negative breast cancer cell sensitivity to EGFR inhibitors by regulating YAP expression

Abstract: Abstract. Triple-negative breast cancer (TNBC) constitutes ~10-15% of breast cancer patients and represents an aggressive subtype with poor overall prognosis. TNBC is an important clinical challenge because it does not respond well to endocrine therapy and have a higher rate of early recurrence and distant metastasis following chemotherapy. Although it has been reported that the epidermal growth factor receptor (EGFR) was overexpressed in ~80% of TNBC, anti-EGFR therapy showed limited clinical benefit accordin… Show more

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Cited by 24 publications
(12 citation statements)
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“…Strikingly, we recently showed that inhibition/depletion of PYK2 also facilitates the degradation of HER3, and that inhibition of PYK2 not only sensitized basal-like TNBC to EGFR antagonists but could also circumvent HER3-associated drug resistance 28 . Consistent with our findings, a previous report showed that TAZ KD sensitized TNBC cells to EGFR antagonists 38 . Hence, it could be that PYK2 inhibition sensitized basal-like TNBC to EGFR antagonists, at least in part, by destabilizing TAZ.…”
Section: Discussionsupporting
confidence: 93%
“…Strikingly, we recently showed that inhibition/depletion of PYK2 also facilitates the degradation of HER3, and that inhibition of PYK2 not only sensitized basal-like TNBC to EGFR antagonists but could also circumvent HER3-associated drug resistance 28 . Consistent with our findings, a previous report showed that TAZ KD sensitized TNBC cells to EGFR antagonists 38 . Hence, it could be that PYK2 inhibition sensitized basal-like TNBC to EGFR antagonists, at least in part, by destabilizing TAZ.…”
Section: Discussionsupporting
confidence: 93%
“…Our results also indicated that downregulation of TAZ could be a useful strategy for restoring sensitivity to cisplatin. Indeed, one study has shown that knockdown of TAZ modified breast cancer cell sensitivity to EGFR inhibitors (50). In line with this, we found that depletion of TAZ sensitized CR cells to cisplatin treatment.…”
Section: Discussionsupporting
confidence: 88%
“…Then, YAP translocates to the nucleus, where it forms a complex with TEAD and regulates the expression of multiple genes [6][7][8]. Numerous studies have shown the up-regulation of YAP in the tumors, such as liver cancer, breast cancer and so on [9][10][11][12]. It has been reported that the expression of TAZ is positively regulated by EBV-LMP1 and contributes to cell proliferation and epithelial-mesenchymal transition in NPC [13].…”
Section: Introductionmentioning
confidence: 99%