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  4. Human cathepsin B (CTSB) ELISA kit

Human cathepsin B (CTSB) ELISA kit

  • 中文名稱：
    人組織蛋白酶B (CTSB)酶聯(lián)免疫試劑盒
  • 貨號(hào)：
    CSB-E13450h
  • 規(guī)格：
    96T/48T
  • 價(jià)格：
    ￥3600/￥2500
  • 其他：

產(chǎn)品詳情

  • 產(chǎn)品描述：
    人組織蛋白酶B (CTSB)酶聯(lián)免疫試劑盒（CSB-E13450h）為雙抗夾心法ELISA試劑盒，定量檢測(cè)血清、血漿、組織勻漿樣本中的CTSB含量。CTSB即組織蛋白酶B，是一種溶酶體半胱氨酸蛋白酶。在生理狀態(tài)下，其參與蛋白降解等正常細(xì)胞活動(dòng)。在病理機(jī)制研究里，它與腫瘤進(jìn)展、神經(jīng)退行性疾病等多種疾病相關(guān)，可能通過促進(jìn)腫瘤細(xì)胞侵襲轉(zhuǎn)移、影響神經(jīng)細(xì)胞功能等方式發(fā)揮作用。試劑盒檢測(cè)范圍為0.312 ng/mL-20 ng/mL，該產(chǎn)品可廣泛應(yīng)用于腫瘤生物學(xué)、神經(jīng)科學(xué)及免疫學(xué)等基礎(chǔ)研究領(lǐng)域，例如評(píng)估疾病模型中CTSB表達(dá)水平與病理進(jìn)程的相關(guān)性，或用于藥物干預(yù)實(shí)驗(yàn)中對(duì)蛋白酶活性調(diào)控效果的定量分析，為相關(guān)分子機(jī)制研究提供可靠數(shù)據(jù)支持。本品僅用于科研，不用于臨床診斷，產(chǎn)品具體參數(shù)及操作步驟詳見產(chǎn)品說明書。
  • 別名：
    Amyloid precursor protein secretase ELISA Kit; APP secretase ELISA Kit; APPS ELISA Kit; CATB_HUMAN ELISA Kit; Cathepsin B heavy chain ELISA Kit; Cathepsin B1 ELISA Kit; CathepsinB ELISA Kit; CPSB ELISA Kit; CTSB ELISA Kit; cysteine protease ELISA Kit; OTTHUMP00000116009 ELISA Kit; OTTHUMP00000229510 ELISA Kit; OTTHUMP00000229511 ELISA Kit; OTTHUMP00000229512 ELISA Kit; OTTHUMP00000229514 ELISA Kit; OTTHUMP00000229515 ELISA Kit; OTTHUMP00000229516 ELISA Kit; Preprocathepsin B ELISA Kit
  • 縮寫：
  • Uniprot No.：
  • 種屬：
    Homo sapiens (Human)
  • 樣本類型：
    serum, plasma, tissue homogenates
  • 檢測(cè)范圍：
    0.312 ng/mL-20 ng/mL
  • 靈敏度：
    0.078 ng/mL
  • 反應(yīng)時(shí)間：
    1-5h
  • 樣本體積：
    50-100ul
  • 檢測(cè)波長(zhǎng)：
    450 nm
  • 研究領(lǐng)域：
    Signal Transduction
  • 測(cè)定原理：
    quantitative
  • 測(cè)定方法：
    Sandwich
  • 精密度：
    Intra-assay Precision (Precision within an assay): CV%<8%      
    Three samples of known concentration were tested twenty times on one plate to assess.  
    Inter-assay Precision (Precision between assays): CV%<10%      
    Three samples of known concentration were tested in twenty assays to assess.    
                 
  • 線性度：
    To assess the linearity of the assay, samples were spiked with high concentrations of human CTSB in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
      Sample Serum(n=4)  
    1:1 Average % 92  
    Range % 88-96  
    1:2 Average % 93  
    Range % 89-97  
    1:4 Average % 98  
    Range % 94-102  
    1:8 Average % 88  
    Range % 86-92  
  • 回收率：
    The recovery of human CTSB spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
    Sample Type Average % Recovery Range  
    Serum (n=5) 94 90-98  
    EDTA plasma (n=4) 87 83-92  
                 
                 
  • 標(biāo)準(zhǔn)曲線：
    These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
    ng/ml OD1 OD2 Average Corrected  
    20 2.544 2.413 2.479 2.364  
    10 2.053 1.941 1.997 1.882  
    5 1.354 1.312 1.333 1.218  
    2.5 0.772 0.764 0.768 0.653  
    1.25 0.454 0.441 0.448 0.333  
    0.625 0.282 0.297 0.290 0.175  
    0.312 0.182 0.187 0.185 0.070  
    0 0.114 0.115 0.115    
  • 數(shù)據(jù)處理：
  • 貨期：
    3-5 working days

產(chǎn)品評(píng)價(jià)

靶點(diǎn)詳情

  • 功能：
    Thiol protease which is believed to participate in intracellular degradation and turnover of proteins. Cleaves matrix extracellular phosphoglycoprotein MEPE. Involved in the solubilization of cross-linked TG/thyroglobulin in the thyroid follicle lumen. Has also been implicated in tumor invasion and metastasis.
  • 基因功能參考文獻(xiàn)：
    1. Cathepsin B (CTSB) is a novel target gene of hypoxia-inducible factor-1-alpha (HIF-1alpha). CTSB mRNA and protein levels can be up-regulated in a HIF-1alpha-dependent manner. PMID: 29935187
    2. expression of cathepsin B and X was detected in stromal cells and cancer cells throughout the glioblastoma (GBM) sections, whereas cathepsin K expression was more restricted to arteriole-rich regions in the GBM sections. Metabolic mapping showed that cathepsin B, but not cathepsin K is active in GSC niches. PMID: 30046941
    3. we evaluated the involvement of cathepsin B and X in the TGF-b1 signaling pathway, one of the key signaling mechanisms triggering epithelial-mesenchymal transition in cancer. In MCF-7 cells the expression of cathepsin B was shown to depend on their activation with TGF-b1 while, for cathepsin X, a TGF-b1 independent mechanism of induction during EMT is indicated. PMID: 28495172
    4. these data suggest that apoptosis is induced by increasing lysosomal membrane permeability and leakage of CTSB into cytoplasm. PMID: 28478025
    5. These findings indicate that Cathepsin B (CTSB), may be an important prognostic biomarker for late stage colorectal cancer (CRC)and cases with lymph node metastases in the Middle Eastern population. Monitoring serum CTSB in CRC patients may predict and/or diagnose cases with lymph node metastases. PMID: 28440429
    6. Findings from this community-based cohort of young children show that surrogate markers for cardiovascular disease such as total fat mass, percent body fat, abdominal fat, body fat distribution, maximal oxygen uptake and pulse pressure were all associated with cystatin B. This was not found for cathepsin L or cathepsin D PMID: 29149174
    7. Interruption of either CCL2-CCR2 signaling or cathepsin B function significantly impaired perineural invasion (PNI). PMID: 28951461
    8. Data suggest that expression of CTSB in human glioblastoma cell line can be modulated by dietary factors; here, caffeine decreases tumor size and CTSB expression in mouse xenograft model of glioblastoma; note that caffeine, normally a dietary component, was administered via intraperitoneal injection in these studies. PMID: 27260469
    9. SNPs in NLRP3 and CTSB, associated with an increased NLRP3-inflammasome activation, are protective against the development of active pulmonary tuberculosis. PMID: 27101784
    10. cathepsin B activity assays identified secreted cathepsin B as responsible for apoA-I cleavage at Ser(228) Importantly PMID: 27630170
    11. ctsB enhanced neutrophil migration though a putative effect on pseudopod retraction rates. PMID: 28389621
    12. We have shown that keratolytic winter erythema in South African and Norwegian families is caused by two different tandem duplications in a non-coding genomic region upstream of CTSB. PMID: 28457472
    13. CtsB/L as major regulators of lysosomal function and demonstrate that CtsB/L may play an important role in intracellular cholesterol trafficking and in degradation of the key AD proteins PMID: 27902765
    14. in CTSB knockout (KO) mice, running did not enhance adult hippocampal neurogenesis and spatial memory function. Interestingly, in Rhesus monkeys and humans, treadmill exercise elevated CTSB in plasma. PMID: 27345423
    15. Report non-proteolytic cathepsin B functiona in tumor cell lines. PMID: 27526672
    16. cathepsin B (CTSB) inhibition or expression of a CTSB-resistant Dab2 mutant maintains Dab2 expression and shifts long-term TGF-beta-treated cells from autophagy to apoptosis PMID: 27398911
    17. cathepsin L and cathepsin B as the lysosomal cysteine proteases that activate the PEDV spike. PMID: 27729455
    18. Results showed an increase level of CTSL, and CTSB in dilated cardiomyopathy patients which correlates with reduced left ventricular ejection fraction. PMID: 28074340
    19. Gene expression level of genes of CTSB is significantly higher in AD patients when compared to normal controls. PMID: 26943237
    20. Serum CTSB and CTSD concentrations were found to have a diagnostic value in NPC. However, the CTSB and CTSD serum levels had no prognostic role for the outcome in nasopharyngeal carcinoma patients. PMID: 26995190
    21. CTSB might be involved in the development and progression of hepatocellular carcinoma. PMID: 26896959
    22. Cathepsin B knockdown in oral cancer cells reduces cell migration. PMID: 27031837
    23. the authors applied the technique of nanoelectrode arrays to try to detect and compare cathepsin B activities in normal and breast cancer cells. It was found that protease activity correlated positively with the degree of malignancy cancer cells. PMID: 25959927
    24. shedding of surface proteins by extracellular cathepsins impacts intracellular signaling as demonstrated for regulation of Ras GTPase activity. PMID: 26081835
    25. High cathepsin is associated with drug resistance in neuroblastoma. PMID: 25883214
    26. The expressions of cathepsin B strongly correlated with the Mini-Mental State Examination scores of the Alzheimer disease. patients PMID: 25502766
    27. Integrin alphavbeta3 is required for cathepsin B-induced hepatocellular carcinoma progression PMID: 25572981
    28. The serum level of cathepsin L decreased with age, while cathepsin B remained no significant difference between young and aged individuals PMID: 25991043
    29. Cathepsins B and L activity correlates with the efficiency of reovirus-mediated tumor cell killing. PMID: 25633482
    30. enhanced activity and expression of cathepsin B contributes to an increased remodelling of extracellular matrix that favours leiomyoma growth PMID: 25577554
    31. SCD5 impairs SPARC and cathepsin B secretion in human melanoma cells and intracellular pH acidification. PMID: 25802234
    32. data suggest that CTSB is a pathophysiologically relevant protease that activates ENaC in cystic fibrosis airways PMID: 25260629
    33. Cathepsin B activity is increased in blood and CSF from HIV-infected cocaine users. PMID: 25209871
    34. CB was highly upregulated in human ESCC and its precursor lesions. The elevated CB expression in ESCC allowed in vivo and in vitro detection of ESCC xenografts in nude mice. PMID: 24618814
    35. Inactivation of tristetraprolin in chronic hypoxia provokes the expression of cathepsin B PMID: 25452305
    36. A4383C and C76G SNP in Cathepsin B is respectively associated with the high risk and tumor size of hepatocarcinoma. PMID: 25106406
    37. Overexpression of uPAR and cathepsin B increases expression of cytosolic p-JNK. PMID: 24699410
    38. Study shows that CTSB overexpression in the cancer cells increases growth of invasive ductal carcinoma in the MMTV-PyMT mouse model of breast cancer. PMID: 24077280
    39. Cathepsin B (CB) substantially contributes to the invasive phenotype of FLS that leads to joint destruction in RA. PMID: 24749816
    40. Cathepsin D and B activities in the serum of patients with urothelial bladder cancer are directly proportional to disease severity and significantly higher compared with control group. PMID: 25095637
    41. Cathepsin B produces full-length amyloid-beta (Ab(1-40/42)) and pyroglutamate amyloid-beta (pyroGluAb(3-40/42) and is a key drug target for treating Alzheimer's disease by reducing these amyloid-beta species PMID: 24595198
    42. Cathepsin B is a key drug target for reducing the brain damage and improving neuromuscular dysfunction resulting from traumatic brain injury (TBI). PMID: 24083575
    43. Correlation between higher CTSB expression and lower survival rate in human lung squamous cell carcinoma. PMID: 24139065
    44. archazolid reduces the activity of prometastatic proteases like cathepsin B in vitro and in vivo. PMID: 24166050
    45. These observations point to a critical regulatory role for that endogenous CD activity in dopaminergic cells in alpha-synuclein homeostasis which cannot be compensated for by increased Cathepsin B. PMID: 24138030
    46. Data indicate that wild type and mutant amyloid precursor proteins (APP) expression enhances the induction in cathepsin B after administration of proteasome inhibitor MG132. PMID: 24215712
    47. Data suggest that CTSB (cathepsin B) and CTSL (cathepsin L) of the autophagic-lysosomal proteolytic system are involved as the main proteolytic system in skeletal muscle during cancer cachexia development in patients with esophageal cancer. PMID: 24108784
    48. Depletion of Cathepsin B in vitro inhibited cell proliferation. PMID: 23708264
    49. Increased concentrations of cathepsins B, D and G in the proliferative eutopic endometrium may play a role in the implantation of endometrial tissue outside the uterine cavity. PMID: 23466190
    50. High cathepsin expression is associated with dysplasia and colitis-associated cancer. PMID: 23591598

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  • 亞細(xì)胞定位：
    Lysosome. Melanosome. Secreted, extracellular space. Apical cell membrane; Peripheral membrane protein; Extracellular side.
  • 蛋白家族：
    Peptidase C1 family
  • 組織特異性：
    Expressed in the stratum spinosum of the epidermis. Weak expression is detected in the stratum granulosum.
  • 數(shù)據(jù)庫(kù)鏈接：

    HGNC: 2527

    OMIM: 116810

    KEGG: hsa:1508

    STRING: 9606.ENSP00000342070

    UniGene: Hs.520898



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