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当前位置:首页 > 品牌专题 >安诺伦生物代理Cell Biolabs:β-己糖胺酶活性检测试剂盒(货号:MET-5095)

在神经退行性疾病和代谢研究的前沿,β-己糖胺酶(β-hexosaminidase) 作为溶酶体的关键水解酶,已成为探索Tay-Sachs病、Sandhoff病等遗传性贮积症的重要生物标志物。Cell Biolabs推出的MET-5095 β-己糖胺酶活性检测试剂盒(Beta Hexosaminidase Activity Assay Kit),凭借其高灵敏度荧光检测技术与96孔板高通量设计,正推动全球实验室突破研究瓶颈。  


产品核心优势:精准与高效的完美融合  

1. 创新荧光检测技术  

传统比色法(如基于PNP-NAG底物的方法)需在反应终止后测量405nm吸光度,操作繁琐且易受干扰。而MET-5095采用直接荧光法,通过底物酶解生成荧光产物,动态监测酶活性变化,灵敏度提升10倍以上。试剂盒提供预优化反应体系,用户仅需加入样本即可读数,适用于血清、血浆及细胞裂解液。  

2. 操作简便,结果稳定

试剂盒提供 即用型底物(p-nitrophenol-N-acetyl-β-D-glucosaminide) 和终止液,仅需3步操作(加样→孵育15-30min→检测),大幅缩短实验周期。

适用样本广泛:细胞上清液、组织匀浆(脑/肠等)、细胞裂解液均可直接检测。

3. 严格质控,数据可靠

经多篇高分文献验证,结果与质谱分析、免疫印迹高度一致,杜绝假阳性。


应用案例:从机制研究到药物开发  

○案例1:蜂毒肽衍生物的毒性机制解析  

2022年,Jung等利用MET-5095评估蜂毒肽(melittin)及其衍生肽对溶酶体功能的影响。研究发现,蜂毒肽可显著抑制β-己糖胺酶活性,导致溶酶体功能障碍;而经结构修饰的衍生肽毒性降低,且保留抗炎活性。试剂盒的高通量特性助力团队快速筛选出安全候选分子,为神经炎症治疗提供新思路。  

○案例2:天然产物促毛发生长机制  

同一团队在《Animal Cells and Systems》发表研究,揭示芒果叶提取物通过激活Wnt/β-catenin通路刺激毛囊再生。实验采用MET-5095检测人真皮乳头细胞中β-己糖胺酶活性,证实其作为溶酶体健康指标与细胞增殖能力正相关。  

Animal Cells and Systems.png

○案例3:免疫学:肥大细胞脱颗粒机制研究

案例:美国阿拉巴马大学团队利用该试剂盒,首次证实HIV患者慢性疼痛与肥大细胞脱颗粒的直接关联(β-hexosaminidase释放量↑300%),发表于《Pain》期刊(2023)。

优势:直接检测肥大细胞活化标志物,替代繁琐的组胺检测法。

Pain.png

图:β-hexosaminidase释放量反映肥大细胞活化程度

○案例4:神经科学:朊病毒疾病机制探索

案例:苏黎世大学团队发现PIKfyve基因缺失导致脑组织β-hexosaminidase活性异常,驱动海绵状脑病变(脑匀浆检测灵敏度达50μg样本量),发表于《EMBO Molecular Medicine》(2021)。

○案例5:基因治疗:溶酶体贮积症治疗评估

案例:俄罗斯团队通过干细胞基因编辑提升β-hexosaminidase A活性(酶活↑80%),为Sandhoff病提供新疗法(2023)。


竞品对比:为何全球顶级实验室选择MET-5095?

参数

MET-5095(Cell Biolabs)

传统比色法试剂盒

检测原理

荧光法(动态监测)

比色法(需终止反应)

检测时长

10分钟孵育+5分钟读数

10分钟孵育+5分钟终止+5分钟显色

样本类型

血清/血浆/细胞裂解液

仅细胞裂解液

样本需求量

≤50uL

≥500uL

权威验证:全球超过200家机构采用,包括加州大学圣地亚哥分校、诺华研发中心等


用户实践指南:如何最大化数据产出?  

样本处理关键点:  

血浆/血清样本避免溶血;细胞裂解液建议使用冷裂解缓冲液(如RIPA),离心后取澄清上清。  

对照设计建议:  

每板设置空白孔(缓冲液+底物)与阳性对照孔(重组酶),确保酶标仪参数校准。  

数据标准化策略:  

活性单位定义为“37℃下每分钟水解1 nmol底物的酶量”,建议同步检测样本总蛋白(如Bradford法),以单位重量蛋白的活性值对比。  


未来展望:从疾病诊断到精准治疗  

随着溶酶体贮积症早筛需求增长,MET-5095已应用于:  

新生儿基因筛查:联合基因检测评估HEXA/HEXB突变携带者酶活性;  

干细胞疗法评估:监测移植干细胞在患者体内的溶酶体功能恢复动态;  

靶向药物开发:如神经鞘脂合成抑制剂疗效验证(如Zavesca)。  


科学家的选择:韩国首尔大学团队在2021-2022年连续选用MET-5095发表3篇高分论文,证实其在抗氧化、抗炎模型中的可靠性。  


立即升级您的溶酶体研究工具!  

Cell Biolabs MET-5095 β-己糖胺酶活性检测试剂盒

Cell Biolabs MET-5095 β.png

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