PADI4 and tumourigenesis.

PADI4 and tumourigenesis.
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DOI:
10.1186/1475-2867-10-7
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发表时间:
2010-03-12
影响因子:
5.8
通讯作者:
Fang K
Fang K
中科院分区:
医学2区
文献类型:
--
作者:
Chang X;Fang K

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PADI4将肽基精氨酸后转化为瓜氨酸,这一过程称为瓜氨酸酶。研究表明PADI4在多种恶性肿瘤组织中高表达。PADI4在某些恶性肿瘤患者的血液中也以高水平表达。迄今为止,已证实组蛋白、细胞角蛋白、抗凝血酶和纤连蛋白中的瓜氨酸与异常凋亡、高凝状态和细胞增殖和分化紊乱有关,所有这些都是恶性肿瘤的主要特征。PADI4在正常组织中的CD34+干细胞中表达,并且在肿瘤组织中存在更多表达PADI4的CD34+细胞。这些发现表明PADI 4可能在肿瘤发生中起重要作用。
PADI4 post-translationally converts peptidylarginine to citrulline, a process called citrullination. Studies have demonstrated the high expression of PADI4 in various malignant tumour tissues. PADI4 is also expressed at high levels in the blood of patients with some malignant tumours. Thus far, citrullination of histone, cytokeratin, antithrombin and fibronectin have been confirmed to be involved in abnormal apoptosis, high coagulation, and disordered cell proliferation and differentiation, all of which are main features of malignant tumours. PADI4 is expressed in CD34+ stem cells in normal tissues, and many more CD34+ cells expressing PADI4 are present in tumour tissues. These findings suggest that PADI4 may play an important role in tumourigenesis.
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