CD3/CD4/CD8Tcellsubsetcounts
DescriptionProcedure for CD3/ CD4 /CD8 T cell subset counts using CD3-FITC / CD4-PE / CD8-PECy5 antibody Procedure1. One 5 ml round bottom tube (Falcon) is taken per blood sample to be analyzed. The tube is labeled, which includes the sample ID, test to be performed and date.2. 15 ƒY´l of the Test antibody (CD3-FITC / CD8-PE / CD4-PECy5) (Cytognos) is added to each sample tube.3. 100 ƒY´l of blood sample is adde......阅读全文
CD3/-CD4-/CD8-T-cell-subset-counts
DescriptionProcedure for CD3/ CD4 /CD8 T cell subset counts using CD3-FITC / CD4-PE / CD8-PECy5 antibody Procedure1. One 5 ml round bottom tube (Falco
Method:-Cell-Counts-Using-a-Hemacytometer
Method: Cell Counts Using a HemacytometerJune 1, 1990Rosalie VeilePurpose:The purpose of this procedure is to determine the cell density of the cultur
Mouse-Compete-Blood-Counts
Materials: 250 µL of fresh mouse blood in plastic tubes containing EDTA. RBC lysis buffer (388 mM NH4Cl, 29.7 mM NaHCO3, 25 µM Na2EDTA)20.75g. NH4CL2.
How-to-perform-automated-counts-of-fluorescently-stained-cells.
NoteThis protocol describes semi-automated cell counts using fluorescently labeled cells, a hemocytometer and ImageJ software. The hemocytometer is n
Th17-Polarization-of-Mouse-CD4-Cells
实验概要T helper 17 (Th17) cells are a subset of CD4 T helper cells characterized by their production of IL-17, particularly IL-17A and IL-17F. They are
大鼠CD4分子(CD4)酶联免疫分析(ELISA)
大鼠CD4分子(CD4)酶联免疫分析(ELISA)试剂盒使用说明书本试剂仅供研究使用 目的:本试剂盒用于测定大鼠血清,血浆及相关液体样本中CD4分子(CD4)含量。实验原理: 本试剂盒应用双抗体夹心法测定标本中大鼠CD4分子(CD4)水平。用纯化的大鼠CD4分子(CD4)抗体包被微孔
免疫细胞表面抗原分子CD家族对照表(CD1CD247)2
CD1cPositive staining (normal): subset of normal peripheral B cellsPositive staining (disease): myeloid leukemias and some B cell malignancies Negativ
探究免疫细胞的家族成员Th亚群(二)
04 Tr1 1997年,Groux等[7]发现了一类由IL-10诱导产生的新CD4+T亚群,该亚群能在体内抑制抗原特异性免疫反应并主动下调病理免疫应答,被称之为Tr1细胞。因Tr1细胞不表达Foxp3而区别于经典的Treg。 IL-27和IL-21协同作用,激活 STA
viral-immunity--pathogenesis-group
OUTLINEWe consider manual counts as less quick but more precize than authomatic (electronic) since in the latter case the counts are based on the size
科学家开发出诊断与HIV共感染的结核分歧杆菌试纸
来自美国、英国、南非的研究人员合作开发出一种酶联免疫吸附试纸,检测尿液标本结核分歧杆菌特异性成分抗原TB-LAM,即TB-LAM试纸。用该试纸进行一项描述性研究结果显示其具有较高的灵敏度,非常适合应用于筛查CD4偏低的HIV感染患者是否感染结核分歧杆菌。图为TB-LAM试纸,左为阳性结果,中右为阴性
大鼠CD4分子(CD4)酶联免疫分析(ELISA)试剂盒使用说明
本试剂仅供研究使用目的:本试剂盒用于测定大鼠血清,血浆及相关液体样本中CD4分子(CD4)含量。实验原理: 本试剂盒应用双抗体夹心法测定标本中大鼠CD4分子(CD4)水平。用纯化的大鼠CD4分子(CD4)抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入CD4分子(CD4),再与HRP
Critical-Appraisal-of-the-MTT-Assay-in-the-Presence-of-Rottlerin-2
Materials and methodsMaterials All chemicals and materials for cell culture (unless otherwise indicated) were obtained from Sigma (Milan, Italy). La
细胞培养——细胞生长和细胞毒性
Articles posted in the Method Froum Cell Viability AssayDye exclusion method Viable Cell Counts Using Trypan Blue (Gibco) Soft Agar Assay For Colo
CD4-及CD8-细胞的分离
⑴CD4 细胞的分离:将一定量的T 细胞悬液通过一根SephDdexC—10 柱,然后用少量的RPMll640 培养洗涤,收获的细胞悬液约含85%的CD4 细胞。⑵CD8 细胞分离:用Tris 缓冲液稀释羊抗鼠IgG(浓度为10μg/m1)包被一平皿表面,然后放置4℃过夜,没有包被上的抗体用PBS
CD4/CD8比值测定的介绍
CD4/CD8比值测定(CD4、CD8、CD4/CD8):CD4/CD8比值是T细胞亚群报告中最为简单和明确的指标。在淋巴细胞的分化中产生的总T细胞的数量是有限的,加之在病变中主要为辅助T或抑制T的升高或降低,因而CD4(+)和CD8(+)细胞的比值会发生相应的变化,因此该值就成为一个简单和明确
Harvesting-Hematopoietic-Cells-from-Mice
Materials4 mice from each genotype4 Ly5 miceBuckets with wet ice 3xBucket with dry ice 1xDewar flask with liquid nitrogen100 mL beakers with 95% ethan
细胞培养常规操作
常规操作(主要内容如下)· Aseptic Technique· Culture Vessels· Cell Counting· Primary Culture· Maintenance of Cell Line ·
Probiotic-Attributes-of-Lactic-Acid-Bacteria-Isolates
IntroductionPresently the consumption of probiotic food is highly popular worldwide for their health beneficial effects. Commonly used probiotic bacte
简述CD4-及CD8-细胞的分离
⑴CD4 细胞的分离:将一定量的T 细胞悬液通过一根SephDdexC—10 柱,然后用少量的RPMll640 培养洗涤,收获的细胞悬液约含85%的CD4 细胞。 ⑵CD8 细胞分离:用Tris 缓冲液稀释羊抗鼠IgG(浓度为10μg/m1)包被一平皿表面,然后放置4℃过夜,没有包被上的抗体用
免疫细胞表面抗原分子CD家族对照表(CD1CD247)3
CD7Membrane glycoprotein and Fc receptor for IgM Homologous to TCR gamma, Ig kappaMembrane expression early during T ontogeny, before TCR rearrangemen
The-OP9DL1-System:-Generation-of-TLymphocytes-from-Embryonic4
TROUBLESHOOTINGProblem: The OP9 cells are more than 80%-90% confluent.Solution: It is important when creating working stocks of OP9 cells for freezing
Cell-Stem-Cell
|泛素连接酶HECTD1通过协调核糖体大小亚基的组装来调控造血干细胞的再生能力 造血干细胞(Hematopoietic stem cell, HSC)具有自我更新和分化的功能。在正常生理状态下,HSC处于休眠状态,其蛋白合成速度受到严格地调控并维持在较低水平。当机体受到损伤时,HSC 能够迅速
Cr-Release-Cytotoxicity-assay
DescriptionCytotoxic activities of mNK cells are examined in 51Cr release assay from target cells ProcedureEffector cells (mNK cells) are seeded into
Dharmacon文库在RNAi文库筛选的应用
1.什么是文库?――大幅提高研究效率的利器以往的实验室研究中,无论是寻找新基因的功能、探索已知基因致病的机制、解析复杂信号通路网络、探索疾病发生发展的机制,药物敏感性测试或者是寻找药物开发的新靶点,科研工作者们往往是围绕着潜在的单个目标基因进行改造,包括针对该基因的过表达、沉默、敲除、激活、修饰、突
Science:-新型CD4-T细胞亚群调节肠道炎症反应
外周调节性T细胞(pTreg)对于限制由外源物质引起的炎症反应具有重要的作用。在肠道中,pTreg主要存在于固有层(lamina propria)中,而上皮间存在的CD4 T细胞同样具有抑制炎症反应的作用。这部分CD4 T细胞依赖视黄酸(Retinoic Acid)以及转化生长因子(TGF-b)
CD4/CD8比值测定的参考值
流式细胞术:0-4岁:0.60-4.00;4-17岁:0.72-2.88;17-200岁:0.71-2.87
CD4/CD8比值测定的临床意义
自身免疫性疾病、病毒感染、恶性肿瘤、艾滋病诊断、病毒分期、制定抗病毒治疗和预防机会性感染方案的标准指标。常用的正常参考值为1.4~2.5。若其比值>2.5表明细胞免疫功能处于“过度活跃”状态,容易出现自体免疫反应。CD4/CD8<1.4一般被称为“免疫抑制”状态,常见于: 1、免疫缺陷病,如艾
HIVCD4、CD8细胞计数及其意义
在T淋巴细胞分类中,CD4代表T辅助细胞而CD8代表T抑制细胞和T杀伤细胞。CD4+T淋巴细胞是HIV感染的主要靶细胞,而其本身又是免疫反应的中心细胞;CD8+T淋巴细胞是免疫反应的效应细胞。正常人的CD4+T淋巴细胞约占总的T淋巴细胞的65%,CD8+T淋巴细胞约占35%。人体感染了HIV后,涉及
Cell-Cycle:-G2/M-Checkpoint
The G2/M DNA damage checkpoint prevents the cell from entering mitosis (M phase) if the genome is damaged. The Cdc2-cyclin B kinase is pivotal in regu
How-to-interrupt-scintillation
Peter Novick Lab, Department of Cell Biology Yale University School of Medicine HOW TO PERFORM AN INTERRUPT OF ANONGOING AUTOCOUNT1). This program int