| PEGylated graphene oxide elicits strong immunological responses despite surface passivation | |
| Luo, Nana1,2; Weber, Jeffrey K.3; Wang, Shuang1,2; Luan, Binquan3; Yue, Hua1; Xi, Xiaobo1,2; Du, Jing4; Yang, Zaixing5,6; Wei, Wei1; Zhou, Ruhong3,5,6,7 | |
| 刊名 | NATURE COMMUNICATIONS
 |
| 2017-02-24 | |
| 卷号 | 8 |
| ISSN号 | 2041-1723 |
| 英文摘要 | Engineered nanomaterials promise to transform medicine at the bio-nano interface. However, it is important to elucidate how synthetic nanomaterials interact with critical biological systems before such products can be safely utilized in humans. Past evidence suggests that polyethylene glycol-functionalized (PEGylated) nanomaterials are largely biocompatible and elicit less dramatic immune responses than their pristine counterparts. We here report results that contradict these findings. We find that PEGylated graphene oxide nanosheets (nGO-PEGs) stimulate potent cytokine responses in peritoneal macrophages, despite not being internalized. Atomistic molecular dynamics simulations support a mechanism by which nGO-PEGs preferentially adsorb onto and/or partially insert into cell membranes, thereby amplifying interactions with stimulatory surface receptors. Further experiments demonstrate that nGO-PEG indeed provokes cytokine secretion by enhancing integrin b8-related signalling pathways. The present results inform that surface passivation does not always prevent immunological reactions to 2D nanomaterials but also suggest applications for PEGylated nanomaterials wherein immune stimulation is desired. |
| WOS标题词 | Science & Technology |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | WALLED CARBON NANOTUBES ; PROTEIN CORONA ; CELLULAR INTERNALIZATION ; POLYETHYLENE-GLYCOL ; MOLECULAR-DYNAMICS ; NANOPARTICLE SIZE ; NANOMATERIALS ; NANOSHEETS ; MEMBRANE ; SYSTEMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000394653500001 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/21960]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.IBM Thomas J Watson Res Ctr, Computat Biol Ctr, Yorktown Hts, NY 10598 USA 4.Tsinghua Univ, Dept Engn Mech, Inst Biomech & Med Engn, Beijing 100084, Peoples R China 5.Soochow Univ, SRMP, Inst Quantitat Biol & Med, Suzhou 215123, Peoples R China 6.Soochow Univ, Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, RAD X, Suzhou 215123, Peoples R China 7.Columbia Univ, Dept Chem, New York, NY 10027 USA 8.Nanjing Tech Univ, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Nana,Weber, Jeffrey K.,Wang, Shuang,et al. PEGylated graphene oxide elicits strong immunological responses despite surface passivation[J]. NATURE COMMUNICATIONS,2017,8. |
| APA | Luo, Nana.,Weber, Jeffrey K..,Wang, Shuang.,Luan, Binquan.,Yue, Hua.,...&Ma, Guanghui.(2017).PEGylated graphene oxide elicits strong immunological responses despite surface passivation.NATURE COMMUNICATIONS,8. |
| MLA | Luo, Nana,et al."PEGylated graphene oxide elicits strong immunological responses despite surface passivation".NATURE COMMUNICATIONS 8(2017). |
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