کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1983995 | 1539917 | 2012 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of molecular size and modification pattern on the internalization of water soluble β-(1 â 3)-(1 â 4)-glucan by primary murine macrophages
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کلمات کلیدی
Main chainFACSCR3MDSCcluster of differentiation molecule 11bHPSECFSCLLSSSCkDaMWDCD11BNHSnuclear magnetic resonance - رزونانس مغناطیسی هستهایNMR - تشدید مغناطیسی هستهای Molecular weight distribution - توزیع وزن مولکولیRefractive index - ضریب شکستfluorescence activated cell sorting - فلورسانس سلول فعال فعال سلولMacrophage - ماکروفاژ Molecular weight - وزن مولکولیReducing end - پایان کم کردنforward scatter - پراکندگی رو به جلوLaser light scattering - پراکندگی نور لیزریhigh performance size exclusion chromatography - کروماتوگرافی خروج با اندازه کافی بالاKilo Dalton - کیلو دالتونComplement receptor 3 - گیرنده تکمیلی 3
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of molecular size and modification pattern on the internalization of water soluble β-(1 â 3)-(1 â 4)-glucan by primary murine macrophages Effect of molecular size and modification pattern on the internalization of water soluble β-(1 â 3)-(1 â 4)-glucan by primary murine macrophages](/preview/png/1983995.png)
چکیده انگلیسی
It has been shown that β-(1 â 3)-(1 â 4)-glucans (BG34) from barley and oats can trigger recognition and internalization by murine and human macrophages. Increasing evidence has suggested that macrophage recognition and internalization of BG34 are dramatically affected by the purity of BG34, the molecular weight and chemical modification. In this study, we investigated the structural features of BG34 for macrophage recognition and internalization. We prepared homogeneous BG34s of 10 kDa (BG34-10), 200 kDa (BG34-200) and 500 kDa (BG34-500) with high purity, and then introduced green fluorescence FITC to the reducing ends (Re) or main chain (Mc). The results of size exclusion chromatography, 13C NMR, fluorescence microscopy, FACS analyses and MTS assay demonstrated that non-toxic BG34 of 10 kDa (BG34-10) effectively trigger macrophage internalization. The internalization was adversely affected by modifying the main chain of BG34-10 but not the reducing end. Studies using blocking antibodies on several CD11b+ and CD11bâ cells suggested that CD11b may play an important role in mediating macrophage internalization of BG34-10. Quantitative RT-PCR and intracellular cytokine stain revealed that macrophages generate increased level of CD11b and TNF-α in response to BG34-10. This study for the first time demonstrated the molecular size (10 kDa) and pattern of modification (reducing end modification) for BG34-10 to mediate macrophage internalization. Since BG34 is water soluble, biocompatible and biodegradable FDA-approved material, this mechanism of BG34-10 can be used to design drug delivery system targeting macrophages.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The International Journal of Biochemistry & Cell Biology - Volume 44, Issue 6, June 2012, Pages 914-927
Journal: The International Journal of Biochemistry & Cell Biology - Volume 44, Issue 6, June 2012, Pages 914-927
نویسندگان
Mei Zhang, Julian A. Kim,