Nanoparticle Effects on Human Platelets in Vitro: A Comparison between PAMAM and Triazine Dendrimers.

Nanoparticle Effects on Human Platelets in Vitro: A Comparison between PAMAM and Triazine Dendrimers.
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DOI:
10.3390/molecules21040428
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发表时间:
2016-03-29
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Simanek EE
Simanek EE
中科院分区:
其他
文献类型:
--
作者:
Enciso AE;Neun B;Rodriguez J;Ranjan AP;Dobrovolskaia MA;Simanek EE

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三嗪和PAMAM树枝状聚合物相似的大小和阳离子表面基团的数量进行了比较,以促进血小板聚集的能力。三嗪树枝状聚合物(G3、G5和G7)的分子量从8 kDa-130 kDa变化,表面基团为16-256。选择用于比较的PAMAM树枝状聚合物包括G3(7 kDa,32个表面基团)和G6(58 kDa,256个表面基团)。用低代三嗪树枝状聚合物(0.01-1 µM)处理人富血小板血浆(PRP)在体外对人血小板聚集没有任何显著影响;然而,用更大代处理PRP可促进有效聚集。这些结果与用PAMAM树枝状聚合物进行的研究一致,其中大的世代促进聚集。三嗪树枝状聚合物比PAMAM树枝状聚合物更不积极地促进聚集,这是归因于阳离子电荷的差异或树枝状聚合物的超分子组装体的形成的因素。
Triazine and PAMAM dendrimers of similar size and number of cationic surface groups were compared for their ability to promote platelet aggregation. Triazine dendrimers (G3, G5 and G7) varied in molecular weight from 8 kDa–130 kDa and in surface groups 16–256. PAMAM dendrimers selected for comparison included G3 (7 kDa, 32 surface groups) and G6 (58 kDa, 256 surface groups). The treatment of human platelet-rich plasma (PRP) with low generation triazine dendrimers (0.01–1 µM) did not show any significant effect in human platelet aggregation in vitro; however, the treatment of PRP with larger generations promotes an effective aggregation. These results are in agreement with studies performed with PAMAM dendrimers, where large generations promote aggregation. Triazine dendrimers promote aggregation less aggressively than PAMAM dendrimers, a factor attributed to differences in cationic charge or the formation of supramolecular assemblies of dendrimers.
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