Fluorescent molecular rotors as dyes to characterize polysorbate-containing IgG formulations.
Fluorescent molecular rotors as dyes to characterize polysorbate-containing IgG formulations.
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DOI:
10.1007/s11095-009-0020-2
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发表时间:
2010-02
影响因子:
3.7
通讯作者:
Jiskoot, Wim
中科院分区:
文献类型:
--
作者:
Hawe, Andrea;Filipe, Vasco;Jiskoot, Wim
关键词:
The aim was to evaluate fluorescent molecular rotors (DCVJ and CCVJ), which are mainly sensitive to viscosity, for the characterization of polysorbate-containing IgG formulations and compare them to the polarity-sensitive dyes ANS, Bis-ANS and Nile Red. IgG formulations with polysorbate 20 or 80 were stressed below the aggregation temperature and analyzed by steady-state and time-resolved fluorescence and by HP-SEC with UV and fluorescent dye detection (Bis-ANS and CCVJ). Furthermore, commercial protein preparations of therapeutic proteins (Enbrel®50 mg, Humira®40 mg and MabThera®100 mg) were aggregated accordingly and analyzed with CCVJ fluorescence and HP-SEC. Contrarily to (Bis-)ANS and Nile Red, the molecular rotors DCVJ and CCVJ showed low background fluorescence in polysorbate-containing buffers. Time-resolved fluorescence experiments confirmed the steady-state fluorescence data. Both DCVJ and CCVJ showed enhanced fluorescence intensity for aggregated IgG formulations and were suitable for the characterization of polysorbate-containing IgG formulations in steady-state fluorescence and HP-SEC with dye detection (CCVJ). CCVJ was capable of detecting thermally induced aggregation in the commercial polysorbate-containing products Enbrel®50 mg, Humira®40 mg and MabThera®100 mg. Fluorescent molecular rotors are suitable probes to detect aggregation in polysorbate-containing IgG formulations. The online version of this article (doi:10.1007/s11095-009-0020-2) contains supplementary material, which is available to authorized users.
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影响因子:
3.7
作者:
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通讯作者:
Jiskoot, Wim
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DOI:
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发表时间:
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