Tick the specs you need to submit them together; or enquire one by one. Cat. numbers are carried into the RFQ.
Q1:只用于分离细胞,选哪种胶原酶合适?
A1:对于组织解离,常使用粗制胶原酶制剂,例如弹性蛋白酶,胰蛋白酶或木瓜蛋白酶等;对于胶原蛋白结构和生物合成研究,常使用更高纯度的胶原酶制剂,不含其他蛋白水解活性。
Q2:要把肿瘤细胞分散成单个细胞做流式检测,选择哪一种胶原酶比较适合?需要区分肿瘤发生的部位吗?后续用来做流式,不同消化强度对细胞表面抗原的影响大吗?
A2:会影响细胞表面抗原,可以选择对抗原影响较小的胶原酶Ⅲ、胶原酶Ⅳ。
Q3:胶原酶使用会受到血清影响吗?
A3:胶原不会受到培养细胞所用的血清影响。
Q4:胶原酶的使用会受哪些抑制剂影响?
A4:胶原酶的抑制剂有 EDTA 、EGTA 等;二是重金属离子(Hg2+,Pb2+,Cd2+);还有一些化学试剂如 Cysteine、 histidine、DTT、2-mercaptoethanol、o-phenanthroline 等对胶原酶也有抑制作用。
Q5:用 PBS 溶解可以吗?用什么工作液浓度溶解?
A5:建议在 Hank’s,Earle’s 或者其他平衡盐溶液中溶解,推荐使用工作浓度 0.05 % ~0.5 % (w/v)。
Q6:实验过程中消化作用不佳
A6:(1)如果是酶活不强或钙离子不足导致,应在低温干燥条件下储存胶原酶,胶原酶溶液分装后冻存(2)如果是钙离子不足导致,应将胶原酶溶液中钙离子浓度设置为 5mM
Q7:使用过程中出现细胞死亡
A7:(1)如果是蛋白酶过量,应减少蛋白酶接触时间或是加入白蛋白或灭活血清(2)如果是 pH 改变应使用缓冲液(如 HBSS);经常检查并重新调节 pH(3)如果氧气太少,应给消化液通无菌空气
Q8: 实验中出现细胞受损怎么办?
A8: 如果是蛋白酶过多导致,应减少蛋白酶用量或是加入白蛋白或灭活血清
Published citations
[1] Jiahe Tian et al. ,A sympathetic-eosinophil axis orchestrates psychological stress to exacerbate skin inflammation.Science, 391,1269-1277(2026).DOI:10.1126/science.adv5974. (IF:45.8)
[2] Sun X, He X, Zhang Y, et al. Inflammatory cell-derived CXCL3 promotes pancreatic cancer metastasis through a novel myofibroblast-hijacked cancer escape mechanism. Gut. 2022;71(1):129-147. doi:10.1136/gutjnl-2020-322744(IF:23.059)
[3] Wu B, Qiang L, Zhang Y, et al. The deubiquitinase OTUD1 inhibits colonic inflammation by suppressing RIPK1-mediated NF-κB signaling. Cell Mol Immunol. 2022;19(2):276-289. doi:10.1038/s41423-021-00810-9(IF:11.530)
[4] Yu Q, Han F, Yuan Z, et al. Fucoidan-loaded nanofibrous scaffolds promote annulus fibrosus repair by ameliorating the inflammatory and oxidative microenvironments in degenerative intervertebral discs. Acta Biomater. 2022;148:73-89. doi:10.1016/j.actbio.2022.05.054(IF:8.947)
[5] Feng C, Xiong Z, Wang C, et al. Folic acid-modified Exosome-PH20 enhances the efficiency of therapy via modulation of the tumor microenvironment and directly inhibits tumor cell metastasis. Bioact Mater. 2020;6(4):963-974. Published 2020 Oct 9. doi:10.1016/j.bioactmat.2020.09.014(IF:8.724)
[6] Wang Y, Sun Q, Ye Y, et al. FGF-2 signaling in nasopharyngeal carcinoma modulates pericyte-macrophage crosstalk and metastasis. JCI Insight. 2022;7(10):e157874. Published 2022 May 23. doi:10.1172/jci.insight.157874(IF:8.315)
[7] Zheng Q, Liu P, Gao G, et al. Mitochondrion-processed TERC regulates senescence without affecting telomerase activities. Protein Cell. 2019;10(9):631-648. doi:10.1007/s13238-019-0612-5(IF:7.575)
[8] Guo H, Yin W, Zou Z, et al. Quercitrin alleviates cartilage extracellular matrix degradation and delays ACLT rat osteoarthritis development: An in vivo and in vitro study. J Adv Res. 2020;28:255-267. Published 2020 Jun 24. doi:10.1016/j.jare.2020.06.020(IF:6.992)
[9] Wang Y, Zhao M, Li W, et al. BMSC-Derived Small Extracellular Vesicles Induce Cartilage Reconstruction of Temporomandibular Joint Osteoarthritis via Autotaxin-YAP Signaling Axis. Front Cell Dev Biol. 2021;9:656153. Published 2021 Apr 1. doi:10.3389/fcell.2021.656153(IF:6.684)
[10] Zhang W, Wang H, Yuan Z, et al. Moderate mechanical stimulation rescues degenerative annulus fibrosus by suppressing caveolin-1 mediated pro-inflammatory signaling pathway. Int J Biol Sci. 2021;17(5):1395-1412. Published 2021 Apr 3. doi:10.7150/ijbs.57774(IF:6.582)
[11] Zhu L, Yang Y, Yan Z, et al. Controlled Release of TGF-β3 for Effective Local Endogenous Repair in IDD Using Rat Model. Int J Nanomedicine. 2022;17:2079-2096. Published 2022 May 9. doi:10.2147/IJN.S358396(IF:6.400)
[12] Zhou T, Xiang DK, Li SN, Yang LH, Gao LF, Feng C. MicroRNA-495 Ameliorates Cardiac Microvascular Endothelial Cell Injury and Inflammatory Reaction by Suppressing the NLRP3 Inflammasome Signaling Pathway. Cell Physiol Biochem. 2018;49(2):798-815. doi:10.1159/000493042(IF:5.500)
[13] Zheng Y, Chen Y, Lu X, et al. Inhibition of Histone Deacetylase 6 by Tubastatin A Attenuates the Progress of Osteoarthritis via Improving Mitochondrial Function. Am J Pathol. 2020;190(12):2376-2386. doi:10.1016/j.ajpath.2020.08.013(IF:4.307)
[14] Wang C, Wang Y, Wang C, et al. Therapeutic application of 3B-PEG injectable hydrogel/Nell-1 composite system to temporomandibular joint osteoarthritis. Biomed Mater. 2021;17(1):10.1088/1748-605X/ac367f. Published 2021 Nov 19. doi:10.1088/1748-605X/ac367f(IF:3.715)
[15] Hu H, Luo SJ, Cao ZR, et al. Depressive Disorder promotes Hepatocellular Carcinoma metastasis via upregulation of ABCG2 gene expression and maintenance of self-renewal. J Cancer. 2020;11(18):5309-5317. Published 2020 Jul 9. doi:10.7150/jca.45712(IF:3.565)
[16] Du Y, Chen X, Yang H, et al. Expression of Oocyte Vitellogenesis Receptor Was Regulated by C/EBPα in Developing Follicle of Wanxi White Goose. Animals (Basel). 2022;12(7):874. Published 2022 Mar 30. doi:10.3390/ani12070874(IF:2.752)
重组胰酶上新,细胞消化升级版选型指南请查收!
选购指南
胰蛋白酶(胰酶)有哪几种?重组还是非重组?胰蛋白酶如何选择?
技术讲解
葡聚糖硫酸钠(Mw 5000)——防止细胞结团,提升CHO蛋白产量
应用方向
告别黑胶虫污染——黑胶虫清除剂
应用方向
碘克沙醇(Iodixanol)——多领域优选的密度梯度介质
应用方向
Hieff Canace® Plus High-Fidelity D...
10153ES
dGTP Solution (100 mM) 脱氧鸟苷三磷酸溶液(1...
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dNTP Mix (25 mM each)
10125ES
dATP Solution (100 mM) 脱氧腺苷三磷酸溶液(1...
10118ES
2× Hieff® Robust PCR Master Mix (N...
10105ES
Hifair® Superpro Ⅱ One Step RT-qPC...
11899ES
Blood Advanced Direct PCR Kit
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dUTP Solution (100 mM) 脱氧尿苷三磷酸溶液(1...
10128ES