Combination toxicity of etoposide (VP-16) and photosensitisation with a water-soluble aluminium phthalocyanine in K562 human leukaemic cells.

Combination toxicity of etoposide (VP-16) and photosensitisation with a water-soluble aluminium phthalocyanine in K562 human leukaemic cells.
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DOI:
10.1038/bjc.1996.591
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发表时间:
1996-11
影响因子:
8.8
通讯作者:
vanLier, JE
vanLier, JE
中科院分区:
医学1区
文献类型:
--
作者:
Gantchev, TG;Brasseur, N;vanLier, JE

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依托泊苷(VP-16)是一种抗癌药物,通常用于治疗几种类型的肿瘤和白血病,无论是单独使用还是联合化疗。光动力疗法(PDT)是另一种相对较新的治疗各种恶性肿瘤的方法。以四硫酞菁铝为光敏剂,研究了VP-16与PDT在K562人白血病细胞中的相互作用。在不同的实验条件下,细胞对单独和联合药物治疗的反应显示出药物的协同毒性。后者从细胞反应的各种事件中可见,包括G2/M细胞周期期细胞的超加性积累和核内溶性DNA断裂(凋亡)。提出了细胞抗氧化系统参与光敏和VP-16的协同相互作用。
Etoposide (VP-16) is an anti-cancer drug commonly used against several types of tumours and leukaemia, either alone or in combination chemotherapy. Photodynamic therapy (PDT) is another, relatively new modality for treatment of various malignancies. The interactions between VP-16 and PDT, using aluminium tetrasulphophthalocyanine as photosensitiser, in K562 human leukaemic cells were investigated. Cell responses to individual and combined drug treatment under different experimental conditions revealed synergistic drug toxicity. The latter was evident from various events of cell response, including supra-additive accumulation of cells in G2/M cell cycle phase and endonucleolytic DNA fragmentation (apoptosis). The involvement of the cellular antioxidant system in the synergistic interactions of photosensitisation and VP-16 is proposed.
DOI: 10.1111/j.1751-1097.1987.tb07880.x
发表时间: 1987-06-01
影响因子: 3.3
作者:
HUNTING, DJ;GOWANS, BJ;VANLIER, JE
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