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首页> 外文期刊>Cytokine >Autocrine and paracrine regulation by cytokines and growth factors in melanoma.
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Autocrine and paracrine regulation by cytokines and growth factors in melanoma.

机译:黑色素瘤中细胞因子和生长因子对自分泌和旁分泌的调节。

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摘要

Tumour development and progression involves the expression of oncogenes and inactivation of tumour suppressor genes, leading to the appearance of multiple malignant characteristics. Malignant melanoma cells express different growth factors and cytokines and their receptors in respective stages of tumour progression, which by autocrine and paracrine effects enable them to grow autonomously and confer competence to metastasis. Autocrine growth factors (bFGF, MGSA/GRO, IL-8 and sometimes IL-6, PDGF-A, IL-10) produced by melanoma cells stimulate proliferation of the producing cell itself, while paracrine growth factors (for example PDGF, EGF, TGF-beta, IL-1, GM-CSF, IGF-I, NGF, VEGF) modulate the microenvironment to the benefit of tumour growth and invasion. Paracrine effects include angiogenesis, stroma formation, modulation of host immune response, activation of proteolytic enzymes, adhesion or motility and metastasis formation. Some growth factors have inhibitory effects on melanocytes and early lesions (IL-1, IL-6, TGF-beta, OSM, TNF and IFN) but not on advanced stage melanomas, and in some cases they switch to autocrine stimulator (IL-6, TGF-beta). Understanding the involvement of different growth factors and cytokines in the molecular mechanism of melanoma progression will help to provide an insight into new future therapeutic approaches for melanoma. Copyright 2000 Academic Press.
机译:肿瘤的发展和发展涉及癌基因的表达和抑癌基因的失活,从而导致出现多种恶性特征。恶性黑色素瘤细胞在肿瘤进展的各个阶段表达不同的生长因子和细胞因子及其受体,通过自分泌和旁分泌的作用,它们能够自发生长并赋予转移能力。黑色素瘤细胞产生的自分泌生长因子(bFGF,MGSA / GRO,IL-8,有时还包括IL-6,PDGF-A,IL-10)刺激产生细胞本身的增殖,而旁分泌生长因子(例如PDGF,EGF, TGF-β,IL-1,GM-CSF,IGF-I,NGF,VEGF)调节微环境,有利于肿瘤的生长和侵袭。旁分泌作用包括血管生成,基质形成,宿主免疫应答的调节,蛋白水解酶的活化,粘附或运动以及转移形成。一些生长因子对黑素细胞和早期病变(IL-1,IL-6,TGF-β,OSM,TNF和IFN)具有抑制作用,但对晚期黑素瘤没有抑制作用,在某些情况下,它们转换为自分泌刺激物(IL-6) ,TGF-beta)。了解黑素瘤进展的分子机制中不同生长因子和细胞因子的参与将有助于提供对黑素瘤未来新治疗方法的见识。版权所有2000学术出版社。

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