MERTK as a novel therapeutic target in head and neck cancer.

MERTK as a novel therapeutic target in head and neck cancer.
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DOI:
10.18632/oncotarget.8724
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发表时间:
2016-05-31
期刊:
影响因子:
--
通讯作者:
Perner S
Perner S
中科院分区:
其他
文献类型:
--
作者:
von Mässenhausen A;Sanders C;Thewes B;Deng M;Queisser A;Vogel W;Kristiansen G;Duensing S;Schröck A;Bootz F;Brossart P;Kirfel J;Heasley L;Brägelmann J;Perner S

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尽管头颈癌 (HNSCC) 是全球第六大常见肿瘤实体,但治疗选择仍然有限,导致 5 年生存率仅为 50%。 MERTK 是多种肿瘤实体中有希望的治疗靶点,但其在 HNSCC 中的作用尚未被描述。我们研究的目的是研究 MERTK 的生物学意义,并评估其作为这种令人沮丧的肿瘤实体的新型治疗靶点的潜力。在两个大型 HNSCC 队列(n=537 和 n=520)中,我们发现 MERTK 在三分之一的患者中过度表达。在体外,MERTK 过表达导致增殖、迁移和侵袭增加,而小分子抑制剂 UNC1062 抑制 MERTK 或敲低 MERTK 通过小 GTPase RhoA 降低细胞运动性。综上所述,我们首次证明 MERTK 在 HNSCC 中频繁过度表达,并在肿瘤细胞运动中发挥重要作用。因此,它可能是患有这种令人沮丧的肿瘤实体的选定患者的潜在目标。
Although head and neck cancer (HNSCC) is the sixth most common tumor entity worldwide therapy options remain limited leading to 5-year survival rates of only 50 %. MERTK is a promising therapeutic target in several tumor entities, however, its role in HNSCC has not been described yet. The aim of our study was to investigate the biological significance of MERTK and to evaluate its potential as a novel therapeutic target in this dismal tumor entity. In two large HNSCC cohorts (n=537 and n=520) we found that MERTK is overexpressed in one third of patients. In-vitro, MERTK overexpression led to increased proliferation, migration and invasion whereas MERTK inhibition with the small molecule inhibitor UNC1062 or MERTK knockdown reduced cell motility via the small GTPase RhoA. Taken together, we are the first to show that MERTK is frequently overexpressed in HNSCC and plays an important role in tumor cell motility. It might therefore be a potential target for selected patients suffering from this dismal tumor entity.
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