Title : Functionalization of graphene oxide generates a unique interface for selective serum protein interactions.

Pub. Date : 2013 Feb

PMID : 23360681






10 Functional Relationships(s)
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1 The results show that, when incubated with human sera, unfunctionalized GO adsorbs a significant amount of serum proteins and strongly induces complement C3 cleavage (part of the complement activation cascade), generating C3a/C3a(des-Arg), an anaphylatoxin involved in local inflammatory responses, whereas PEGylated nano-GO (nGO-PEG) exhibits dramatic reductions in both protein binding in general and complement C3 activation. Polyethylene Glycols complement C3 Homo sapiens
2 Further mass spectrometry analysis identifies six nGO-PEG binding proteins, four of which are immune-related factors, including C3a/C3a(des-Arg). Polyethylene Glycols complement C3 Homo sapiens
3 Further mass spectrometry analysis identifies six nGO-PEG binding proteins, four of which are immune-related factors, including C3a/C3a(des-Arg). Polyethylene Glycols complement C3 Homo sapiens
4 A series of Western blot analysis demonstrate that nGO-PEG binds up to 2-fold amount of C3a/C3a(des-Arg) than unfunctionalized GO, and can efficiently decrease the level of C3a/C3a(des-Arg) in treated sera, preventing the normal interaction of C3a with its receptor. Polyethylene Glycols complement C3 Homo sapiens
5 A series of Western blot analysis demonstrate that nGO-PEG binds up to 2-fold amount of C3a/C3a(des-Arg) than unfunctionalized GO, and can efficiently decrease the level of C3a/C3a(des-Arg) in treated sera, preventing the normal interaction of C3a with its receptor. Polyethylene Glycols complement C3 Homo sapiens
6 A series of Western blot analysis demonstrate that nGO-PEG binds up to 2-fold amount of C3a/C3a(des-Arg) than unfunctionalized GO, and can efficiently decrease the level of C3a/C3a(des-Arg) in treated sera, preventing the normal interaction of C3a with its receptor. Polyethylene Glycols complement C3 Homo sapiens
7 A series of Western blot analysis demonstrate that nGO-PEG binds up to 2-fold amount of C3a/C3a(des-Arg) than unfunctionalized GO, and can efficiently decrease the level of C3a/C3a(des-Arg) in treated sera, preventing the normal interaction of C3a with its receptor. Polyethylene Glycols complement C3 Homo sapiens
8 A series of Western blot analysis demonstrate that nGO-PEG binds up to 2-fold amount of C3a/C3a(des-Arg) than unfunctionalized GO, and can efficiently decrease the level of C3a/C3a(des-Arg) in treated sera, preventing the normal interaction of C3a with its receptor. Polyethylene Glycols complement C3 Homo sapiens
9 In a proof-of-concept experiment, we demonstrate that nGO-PEG may serve to help eliminate the C3a/C3a(des-Arg) induced by other nanomaterials such as as-made GO, indicating a new strategy to modulate the immune responses evoked by one nanomaterial through the addition of another type of nanomaterial. Polyethylene Glycols complement C3 Homo sapiens
10 In a proof-of-concept experiment, we demonstrate that nGO-PEG may serve to help eliminate the C3a/C3a(des-Arg) induced by other nanomaterials such as as-made GO, indicating a new strategy to modulate the immune responses evoked by one nanomaterial through the addition of another type of nanomaterial. Polyethylene Glycols complement C3 Homo sapiens