Bilirubin Restrains the Anticancer Effect of Vemurafenib on BRAF-Mutant Melanoma Cells Through ERK-MNK1 Signaling
Copyright © 2021 Tan, Zhong, Wen, Yao, Shao, Sun, Wu, Wen, Tang, Zhang, Liao and Liu..
Melanoma, the most threatening cancer in the skin, has been considered to be driven by the carcinogenic RAF-MEK1/2-ERK1/2 signaling pathway. This signaling pathway is usually mainly dysregulated by mutations in BRAF or RAS in skin melanomas. Although inhibitors targeting mutant BRAF, such as vemurafenib, have improved the clinical outcome of melanoma patients with BRAF mutations, the efficiency of vemurafenib is limited in many patients. Here, we show that blood bilirubin in patients with BRAF-mutant melanoma treated with vemurafenib is negatively correlated with clinical outcomes. In vitro and animal experiments show that bilirubin can abrogate vemurafenib-induced growth suppression of BRAF-mutant melanoma cells. Moreover, bilirubin can remarkably rescue vemurafenib-induced apoptosis. Mechanically, the activation of ERK-MNK1 axis is required for bilirubin-induced reversal effects post vemurafenib treatment. Our findings not only demonstrate that bilirubin is an unfavorable for patients with BRAF-mutant melanoma who received vemurafenib treatment, but also uncover the underlying mechanism by which bilirubin restrains the anticancer effect of vemurafenib on BRAF-mutant melanoma cells.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:11 |
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| Enthalten in: |
Frontiers in oncology - 11(2021) vom: 28., Seite 698888 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tan, Yufan [VerfasserIn] |
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| Links: |
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| Themen: |
BRAF-mutant melanoma |
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| Anmerkungen: |
Date Revised 06.07.2021 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.3389/fonc.2021.698888 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM327686715 |
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| 520 | |a Copyright © 2021 Tan, Zhong, Wen, Yao, Shao, Sun, Wu, Wen, Tang, Zhang, Liao and Liu. | ||
| 520 | |a Melanoma, the most threatening cancer in the skin, has been considered to be driven by the carcinogenic RAF-MEK1/2-ERK1/2 signaling pathway. This signaling pathway is usually mainly dysregulated by mutations in BRAF or RAS in skin melanomas. Although inhibitors targeting mutant BRAF, such as vemurafenib, have improved the clinical outcome of melanoma patients with BRAF mutations, the efficiency of vemurafenib is limited in many patients. Here, we show that blood bilirubin in patients with BRAF-mutant melanoma treated with vemurafenib is negatively correlated with clinical outcomes. In vitro and animal experiments show that bilirubin can abrogate vemurafenib-induced growth suppression of BRAF-mutant melanoma cells. Moreover, bilirubin can remarkably rescue vemurafenib-induced apoptosis. Mechanically, the activation of ERK-MNK1 axis is required for bilirubin-induced reversal effects post vemurafenib treatment. Our findings not only demonstrate that bilirubin is an unfavorable for patients with BRAF-mutant melanoma who received vemurafenib treatment, but also uncover the underlying mechanism by which bilirubin restrains the anticancer effect of vemurafenib on BRAF-mutant melanoma cells | ||
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| 700 | 1 | |a Shao, Zhenlong |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Wenshuang |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Jiawen |e verfasserin |4 aut | |
| 700 | 1 | |a Wen, Guanmei |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Daolin |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xiaoshi |e verfasserin |4 aut | |
| 700 | 1 | |a Liao, Yuning |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Jinbao |e verfasserin |4 aut | |
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