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BioVendor游离轻链(κ和λ)Elisa 试剂盒检测步骤
2022-06-28 18:01:00 【Sylvia_sc】
人免疫球蛋白(Ig)分子由两个相同的重链和两条相同的轻链组成,重链有α、δ、ε、γ和 μ这5种类型,这些重链分别决定了免疫球蛋白IgA,IgD,IgE,IgG和IgM这5类;轻链分为 k (kappa)链 和λ (lambda)链2种类型,每个Ig分子上只有一个型别的轻链。
FLC是B淋巴细胞的天然产物,因此代表了肿瘤和反应性B细胞相关疾病的独特生物标志物。 FLC的增加与恶性血浆失调和其他淋巴结性免疫增生性疾病有关。
同时,FLC的检测也是各种单克隆球蛋白病的重要诊断辅助,例如多发性骨髓瘤,巨球蛋白血症,非分泌性骨髓瘤,雾化多发性骨髓瘤,单克隆肺炎,单克隆性颅脑病。较精确测量血清尿液中的单克隆游离轻链在轻链疾病中尤其重要,例如轻链骨髓瘤,原发全身性淀粉样变性和轻链沉积疾病。
定量单克隆FLC的能力可能有助于监测该疾病。在轻链骨髓瘤的患者中,在疾病早期阶段导致FLC κ/λ比的明显变化。免疫球蛋白的尿液单克隆kappa或Lambda游离轻链的检测,也称为Bence Jones蛋白(BJP,本周蛋白),对于识别和监测BCELL恶性肿瘤也很重要。
来看看接下来要介绍的这款艾美捷 BioVendor 人免疫球蛋白游离轻链(κ和λ)Elisa 试剂盒(适用样本类型:血清、血浆-EDTA、血浆-肝素、血浆-柠檬酸盐、尿液):
游离轻链(κ和λ)Elisa 试剂盒检测步骤:

FLC kappa和FLC λ的检测范围和灵敏度分别是:
检测范围 灵敏度
10–320ng/ml 6ng/ml
17.5–560ng/ml 5ng/m
FLC kappa和FLC λ的较精确度分别是:
组间差异:
FLC kappa(n=6) FLC λ(n=6)
CV=7.0% CV=6.4%
组内差异:
FLC kappa(n=8) FLC λ(n=8)
CV = 3.0% CV = 4.5%
艾美捷 BioVendor 人免疫球蛋白游离轻链(κ和λ)Elisa 试剂盒部分引文结果展示:
1、Hantavirus infection-induced B cell activation elevates free light chains levels in circulation.
2、Randomized controlled trial of medium cut-off versus high-flux dialyzers on quality of life outcomes in maintenance hemodialysis patients.
3、Assessment of Intrathecal Free Light Chain Synthesis: Comparison of Different Quantitative Methods with the Detection of Oligoclonal Free Light Chains by Isoelectric Focusing and Affinity-Mediated Immunoblotting
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