Cytoskeleton alterations in melanoma: aberrant expression of cortactin, an actin-binding adapter protein, correlates with melanocytic tumor progression.

Cytoskeleton alterations in melanoma: aberrant expression of cortactin, an actin-binding adapter protein, correlates with melanocytic tumor progression.
复制标题

DOI:
10.1038/modpathol.2009.157
复制
发表时间:
2010-02
期刊:
Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc
影响因子:
--
通讯作者:
--
中科院分区:
其他
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

皮质激素是一种多结构域肌动蛋白结合蛋白,通过调节皮质肌动蛋白的动力学,对细胞骨架的功能起重要作用。它参与多种基本细胞功能。肿瘤发生和肿瘤进展涉及肌动蛋白细胞骨架蛋白的改变。我们试图通过对人体组织进行免疫组化来研究coronin在黑素细胞肿瘤进展中的作用。结果揭示了良性和恶性病变之间的定量差异。黑色素瘤中coronin的表达明显高于痣(P<0.0001),转移性黑色素瘤中coronin的表达高于浸润性黑色素瘤(P<0.05)。定性地,肿瘤组织通常在细胞周边显示异常的皮质蛋白定位,对应于其与培养的黑色素瘤细胞的细胞皮质中的丝状肌动蛋白的共定位。这表明蛋白质失调的额外水平。此外,在患有转移性疾病的患者中,高水平的corneumen表达与疾病特异性生存率低相关。我们的数据,结合其他几种类型的人类癌症的结果数据和黑色素瘤细胞系的实验数据,支持异常corneumen表达在黑色素瘤肿瘤进展中的潜在作用,以及针对肌动蛋白信号传导途径的关键元件用于黑色素瘤发育治疗的合理性。
Cortactin is a multidomain actin-binding protein important for the functions of cytoskeleton by regulating cortical actin dynamics. It is involved in a diverse array of basic cellular functions. Tumorigenesis and tumor progression involves alterations in actin cytoskeleton proteins. We sought to study the role of cortactin in melanocytic tumor progression using immunohistochemistry on human tissues. The results reveal quantitative differences between benign and malignant lesions. Significantly higher cortactin expression is found in melanomas than in nevi (P<0.0001), with levels greater in metastatic than in invasive melanomas (P<0.05). Qualitatively, tumor tissues often show aberrant cortactin localization at the cell periphery, corresponding to its colocalization with filamentous actin in cell cortex of cultured melanoma cells. This suggests an additional level of protein dysregulation. Furthermore, in patients with metastatic disease, high-level cortactin expression correlates with poor disease-specific survival. Our data, in conjunction with outcome data on several other types of human cancers and experimental data from melanoma cell lines, supports a potential role of aberrant cortactin expression in melanoma tumor progression and a rational for targeting key elements of actin-signaling pathway for developmental therapeutics in melanomas.
DOI: 10.1016/0378-1119(94)00562-7
发表时间: 1995-06-14
期刊: GENE
影响因子: 3.5
作者:
SCHUURING, E
通讯作者: SCHUURING, E
DOI: 10.1111/j.0303-6987.2005.00282.x
发表时间: 2005-02-01
影响因子: 1.7
作者:
Wu, H;Barusevicius, A;Seykora, JT
通讯作者: Seykora, JT
DOI: 10.1177/002215549804601011
发表时间: 1998-10-01
影响因子: 3.2
作者:
Wu, H;Montone, KT
通讯作者: Montone, KT
DOI: 10.1016/s0046-8177(84)80310-x
发表时间: 1984-01-01
期刊: HUMAN PATHOLOGY
影响因子: 3.3
作者:
CLARK, WH;ELDER, DE;VANHORN, M
通讯作者: VANHORN, M
DOI: 10.1158/0008-5472.can-07-0798
发表时间: 2007-10-01
期刊: CANCER RESEARCH
影响因子: 11.2
作者:
Timpson, Paul;Wilson, Ashleigh S.;Daly, Roger J.
通讯作者: Daly, Roger J.