Recombinant Human IL-21(2ug)产品图
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Recombinant Human IL-21(2ug)

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  • 200-21-2UG
  • 2026年03月04日
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    Human IL-21 (2ug)

    IL-21是一种由CD4+ T细胞在抗原刺激下产生的多效性细胞因子。其作用通常是增强免疫细胞的抗原特异性应答。IL-21的生物学效应包括:诱导T细胞刺激的B细胞分化为浆细胞和记忆B细胞;与IL-4协同刺激IgG的产生;以及在缺乏T细胞信号的情况下,诱导初始B细胞和受刺激B细胞的凋亡效应。此外,IL-21还能促进CD8+ T细胞和自然杀伤(NK)细胞的抗肿瘤活性。IL-21通过与特异性I型细胞因子受体IL-21R结合发挥其效应,该受体也含有γ链(γc)——这一结构同样存在于IL-2、IL-4、IL-7、IL-9和IL-15等其他细胞因子受体中。IL-21与IL-21R的相互作用触发一系列级联事件:首先激活酪氨酸激酶JAK1和JAK3,进而激活转录因子STAT1和STAT3。

     

    种属

    Human

    已发表种属

    Dog, Human, Mouse, Non-human primate, Rhesus monkey

    Expression System表达系统

    E. coli

    氨基酸序列

    MQDRHMIRMR QLIDIVDQLK NYVNDLVPEF LPAPEDVETN CEWSAFSCFQ KAQLKSANTG NNERIINVSI KKLKRKPPST NAGRRQKHRL TCPSCDSYEK KPPKEFLERF KSLLQKMIHQ HLSSRTHGSE DS

    预测分子量

    15.4 kDa

    分类

    Recombinant

    类型

    Protein

    纯度

    ≥ 98% by SDS-PAGE gel and HPLC analyses.

    内毒素浓度

    <1 EU/µg

    活性

    Determined by its ability to stimulate the proliferation of human ANBL-6 cells. The expected ED50 is ≤ 0.5 ng/ml, corresponding to a specific activity of ≥ 2 x10^6 units/mg.

    偶联物

    Unconjugated

    形式

    Lyophilized

    Amount

    10 µg

    纯化类型

    purified

    成分

    no preservative

    保存条件

    -20°C

    运输条件

    Ambient

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      图标文献和实验
      该产品被引用文献

      [1]Tsai DY, Wang CH, Schiro PG, Chen N, Tseng JY. Tracking B Cell Memory to SARS-CoV-2 Using Rare Cell Analysis System. Vaccines (Basel). 2023;11(4):735. Published 2023 Mar 26. doi:10.3390/vaccines11040735

      [2]Shiqi L, Jiasi Z, Lvzhe C, et al. Durable remission related to CAR-T persistence in R/R B-ALL and long-term persistence potential of prime CAR-T. Mol Ther Oncolytics. 2023;29:107-117. Published 2023 Apr 20. doi:10.1016/j.omto.2023.04.003

      [3]Shiqi L, Jiasi Z, Lvzhe C, et al. Durable remission related to CAR-T persistence in R/R B-ALL and long-term persistence potential of prime CAR-T. Mol Ther Oncolytics. 2023;29:107-117. Published 2023 Apr 20. doi:10.1016/j.omto.2023.04.003

      [4]Lee DY, Kim Y, Park JS, Choi JU, Jeong HG, Park CH. Development of Genetically Engineered Feeder Cells for Natural Killer Cell Expansion. Anticancer Res. 2023;43(9):3897-3904. doi:10.21873/anticanres.16577

      [5]Fichtner ML, Hoehn KB, Ford EE, et al. Reemergence of pathogenic, autoantibody-producing B cell clones in myasthenia gravis following B cell depletion therapy. Acta Neuropathol Commun. 2022;10(1):154. Published 2022 Oct 28. doi:10.1186/s40478-022-01454-0

      [6]Schneider MM, Emmenegger M, Xu CK, et al. Microfluidic characterisation reveals broad range of SARS-CoV-2 antibody affinity in human plasma. Life Sci Alliance. 2021;5(2):e202101270. Published 2021 Nov 30. doi:10.26508/lsa.202101270

      [7]Niehues H, Rikken G, van Vlijmen-Willems IMJJ, et al. Identification of Keratinocyte Mitogens: Implications for Hyperproliferation in Psoriasis and Atopic Dermatitis. JID Innov. 2021;2(1):100066. Published 2021 Oct 22. doi:10.1016/j.xjidi.2021.100066

      [8]Manolakou T, Nikolopoulos D, Gkikas D, et al. ATR-mediated DNA damage responses underlie aberrant B cell activity in systemic lupus erythematosus. Sci Adv. 2022;8(43):eabo5840. doi:10.1126/sciadv.abo5840

      [9]Sokal A, Chappert P, Barba-Spaeth G, et al. Maturation and persistence of the anti-SARS-CoV-2 memory B cell response. Cell. 2021;184(5):1201-1213.e14. doi:10.1016/j.cell.2021.01.050

      [10]Dejnirattisai W, Zhou D, Ginn HM, et al. The antigenic anatomy of SARS-CoV-2 receptor binding domain. Cell. 2021;184(8):2183-2200.e22. doi:10.1016/j.cell.2021.02.032

      [11]Sokal A, Barba-Spaeth G, Fernández I, et al. mRNA vaccination of naive and COVID-19-recovered individuals elicits potent memory B cells that recognize SARS-CoV-2 variants. Immunity. 2021;54(12):2893-2907.e5. doi:10.1016/j.immuni.2021.09.011

      [12]Almeida L, Dhillon-LaBrooy A, Castro CN, et al. Ribosome-Targeting Antibiotics Impair T Cell Effector Function and Ameliorate Autoimmunity by Blocking Mitochondrial Protein Synthesis. Immunity. 2021;54(1):68-83.e6. doi:10.1016/j.immuni.2020.11.001

      [13]Ehx G, Larouche JD, Durette C, et al. Atypical acute myeloid leukemia-specific transcripts generate shared and immunogenic MHC class-I-associated epitopes. Immunity. 2021;54(4):737-752.e10. doi:10.1016/j.immuni.2021.03.001

      [14]Yao Y, Chen Z, Zhang H, et al. Selenium-GPX4 axis protects follicular helper T cells from ferroptosis. Nat Immunol. 2021;22(9):1127-1139. doi:10.1038/s41590-021-00996-0

      [15]Vlahava VM, Murrell I, Zhuang L, et al. Monoclonal antibodies targeting nonstructural viral antigens can activate ADCC against human cytomegalovirus. J Clin Invest. 2021;131(4):e139296. doi:10.1172/JCI139296

       

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      Recombinant Human IL-21(2ug)
      ¥1207