BioParticles製品の使用法 BioParticles™接合は凍結乾燥粉末として提供されます。約3 x 108の大腸菌または黄色ブドウ球菌粒子/mg(固体)および約2 x 107のザイモサン粒子/mg(固体)が存在します。BioParticles™コンジュゲートは、食作用アッセイで使用するために選択した緩衝液で再構成できます。細胞の表面に結合している(しかし内部に取り込まれていない)BioParticles™コンジュゲートの蛍光は、エチジウムブロマイド、トリパンブルー、または他のクエンチャーよって消光できます。細胞での用途に加えて、蛍光BioParticles™コンジュゲートは、細菌や酵母変異体を分類する際のフローサイトメトリーキャリブレーションリファレンスとして有効な場合があります。微小粒子は、サイズと形状が特徴的に異なるため、光散乱研究の参考になる可能性もあります。
While the bacteria have been attenuated with formaldehyde and alcohol desiccation, the BioParticles products are not considered sterile, and we do not recommend incubation of more than 4 hours. This applies to all of our dye-labeled (pHrodo, Alexa Fluor, etc.) and unlabeled BioParticles products.
What is the type of bond that attaches the dyes to the BioParticles probes?
We use amine-reactive dyes to covalently attach fluorescent dyes to all of our BioParticles probes such as the Escherichia coli (K-12 strain) BioParticles probes, Staphylococcus aureus (Wood strain without protein A) BioParticles, and the Zymosan A (S. cerevisiae) BioParticles probes.
What can the BioParticles product line be used for?
Fluorescent Bioparticles have been employed to study phagocytosis by fluorescence microscopy, quantitative spectrofluorometry, and flow cytometry. We offer E.Coli, S. aureus, and zymosan BioParticles conjugates covalently labeled with a variety of different fluorophores.
CFTR regulates phagosome acidification in macrophages and alters bactericidal activity.
Authors:Di A, Brown ME, Deriy LV, Li C, Szeto FL, Chen Y, Huang P, Tong J, Naren AP, Bindokas V, Palfrey HC, Nelson DJ
Journal:Nat Cell Biol
PubMed ID:16921366
'Acidification of phagosomes has been proposed to have a key role in the microbicidal function of phagocytes. Here, we show that in alveolar macrophages the cystic fibrosis transmembrane conductance regulator Cl- channel (CFTR) participates in phagosomal pH control and has bacterial killing capacity. Alveolar macrophages from Cftr-/- mice retained the ... More
Disease-causing mutations in the cystic fibrosis transmembrane conductance regulator determine the functional responses of alveolar macrophages.
'Alveolar macrophages (AMs) play a major role in host defense against microbial infections in the lung. To perform this function, these cells must ingest and destroy pathogens, generally in phagosomes, as well as secrete a number of products that signal other immune cells to respond. Recently, we demonstrated that murine ... More