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图1:MX-1体外数据:A. 接种前MX-1细胞照片;B.MX-1细胞增值曲线
尊龙凯时人生就是博·中国使用MX-1 CDX模型已为多家制药企业及科研机构提供了稳定的模型数据。
图2:MX-1体内数据。A. 给药测试后的肿瘤体积变化情况。B. 给药测试后的体重变化情况;C. 肿瘤重量图。D. 肿瘤照片图;E. TGI (%) 、T/C (%) 和p值 。
2. 糖基化是细胞中蛋白质和脂质最常见的共翻译或翻译后修饰之一,超过 50% 的已知蛋白质序列可能被糖基化。细胞表面糖基化的修饰发生在致癌过程中,这是已知的癌细胞的共同特征,反映了聚糖(如糖基转移酶和糖苷)生物合成的癌症特异性变化。在乳腺癌中,糖基化变化通常导致TACA的表达,这些抗原通常与细胞粘附、迁移、增殖和肿瘤生长有关。Han等人运用癌症选择性毒性的抗菌肽(ABPs)作为替代化疗药物治疗MX-1细胞,发现ABPs可通过增强与MX-1细胞表面存在O-、N-糖蛋白、神经节苷脂和唾液酸的结合活性,从而发挥显著的细胞毒性和凋亡活性,显示出高效的抗肿瘤作用[8]。
图3.:MX-1乳腺癌干预靶点研究现状示例: 由Figdraw绘制。
三、治疗MX-1乳腺癌的药物参考
* Asterisks indicate significant differences from controls at P < 0.001 (***), P < 0.01 (**), and P < 0.05 (*)
尊龙凯时人生就是博·中国肿瘤药理部利用MX-1模型,为人类乳腺癌提供精准的临床前药效研究服务。我们的专业平台支持各类分子体内药效研究,并通过阳药组测试验证抗肿瘤活性。尊龙凯时人生就是博·中国已为多家药企和科研单位提供稳定可靠的模型数据,推动了乳腺癌临床前研究,展现了在肿瘤药理研究领域的卓越实力和贡献。
参考文献
[1]Reese JM, Suman VJ, Subramaniam M, Wu X, Negron V, Gingery A, Pitel KS, Shah SS, Cunliffe HE, McCullough AE, et al. ERβ1: Characterization, prognosis, and evaluation of treatment strategies in ERα-positive and -negative breast cancer. BMC Cancer. 2014;14:749.
[2]杜薇,谭婷婷,刘广庆,等.MX-1人乳腺癌细胞动物模型的建立[J].人人健康,2017,(10):8.
[3]Lai F, Liu Q, Liu X, Ji M, Xie P, Chen X. LXY6090 - a novel manassantin A derivative - limits breast cancer growth through hypoxia-inducible factor-1 inhibition. Onco Targets Ther. 2016 Jun 24;9:3829-40.
[4]Wang GL, Semenza GL. Purification and characterization of hypoxia-inducible factor 1. J Biol Chem. 1995;270(3):1230–1237.
[5]Wang GL, Jiang BH, Rue EA, Semenza GL. Hypoxia-inducible factor 1 is a basic-helix-loop-helix-PAS heterodimer regulated by cellular O2 tension. Proc Natl Acad Sci U S A. 1995;92(12):5510–5514.
[6]Chiche, J, Ricci, JE, Pouysségur, J. Tumor hypoxia and metabolism -- towards novel anticancer approaches. ANN ENDOCRINOL-PARIS. 2013; 74 (2): 111-4.
[7]Marxsen JH, Schmitt O, Metzen E, Jelkmann W, Hellwig-Bürgel T. Vascular endothelial growth factor gene expression in the human breast cancer cell line MX-1 is controlled by O2 availability in vitro and in vivo. Ann Anat. 2001;183(3):243-249.
[8]Han YY, Liu HY, Han DJ, Zong XC, Zhang SQ, Chen YQ. Role of glycosylation in the anticancer activity of antibacterial peptides against breast cancer cells. Biochem Pharmacol. 2013;86(9):1254-1262.
[9]Bajo, AM, Schally, AV, Halmos, G, et al.Targeted doxorubicin-containing luteinizing hormone-releasing hormone analogue AN-152 inhibits the growth of doxorubicin-resistant MX-1 human breast cancers.CLIN CANCER RES. 2003; 9 CLIN CANCER RES.
[10]Inoue K, Fujimoto S, Ogawa M. Antitumor efficacy of seventeen anticancer drugs in human breast cancer xenograft (MX-1) transplanted in nude mice. Cancer Chemother Pharmacol. 1983;10(3):182-6.
[11]Inoue K, Fujimoto S, Ogawa M. Comparison of antitumor activities of nitrosourea derivatives against mammary breast carcinoma (MX-1) in nude mice. Gan. 1980 Oct;71(5):686-91.
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