Doxycycline is a tetracycline-derivative wide-spectrum antibiotic, inhibit protein synthesis by interfering with the binding of activated aminoacyl-tRNAs on the A-site of the 30S subunit of bacterial ribosomes. It is used to treat a variety of infections caused by bacteria and protozoa. Doxycycline is also a nonspecific matrix metalloproteinase (MMP) inhibitor. Doxycycline exhibits anti-tumour and pro-apoptotic activity [1-4].
Doxycycline(0-250 µM; 72h) inhibits cell viability of breast cancer cells and mammospheres[5]. Doxycycline (100 ng/mL, 1 µg/mL; 24 h) reduces proliferation of human cell lines[6].
Doxycycline(20mg /kg; p.o.;2times) treated following mice TBI improved behavioral and motor function suggesting doxycycline's role in preserving murine BBB integrity[7]. Doxycycline(DOX in drinking water (6 mg/ml, 5 ml/day/mice) ; 36 days) significantly minimized the dystrophic phenotype of skeletal and cardiac muscles and improved forelimb muscle strength[8]. The FM(fecal microbiota) of female C57BL/6NCrl mice is significantly altered by administration of doxycycline(doxycycline in the drinking water at 2 mg/ml during weeks 1, 2, and 4) at a concentration of 2 mg/ml in the drinking water[9].
References:
[1]. Cunha BA, Sibley CM, et,al. Doxycycline. Ther Drug Monit. 1982;4(2):115-35. doi: 10.1097/00007691-198206000-00001. PMID: 7048645.
[2].Manchado E, Weissmueller S, et,al. A combinatorial strategy for treating KRAS-mutant lung cancer. Nature. 2016 Jun 30;534(7609):647-51. doi: 10.1038/nature18600. Epub 2016 Jun 22. PMID: 27338794; PMCID: PMC4939262.
[3].Luger AL, Sauer B, et,al. Doxycycline Impairs Mitochondrial Function and Protects Human Glioma Cells from Hypoxia-Induced Cell Death: Implications of Using Tet-Inducible Systems. Int J Mol Sci. 2018 May 17;19(5):1504. doi: 10.3390/ijms19051504. PMID: 29772845; PMCID: PMC5983704.
[4]. Duivenvoorden WC, Popović SV, et,al. Doxycycline decreases tumor burden in a bone metastasis model of human breast cancer. Cancer Res. 2002 Mar 15;62(6):1588-91. PMID: 11912125.
[5]. Zhang L, Xu L, et,al. Doxycycline inhibits the cancer stem cell phenotype and epithelial-to-mesenchymal transition in breast cancer. Cell Cycle. 2017 Apr 18;16(8):737-745. doi: 10.1080/15384101.2016.1241929. Epub 2016 Oct 18. PMID: 27753527; PMCID: PMC5405729.
[6]. Ahler E, Sullivan WJ, et,al. Doxycycline alters metabolism and proliferation of human cell lines. PLoS One. 2013 May 31;8(5):e64561. doi: 10.1371/journal.pone.0064561. PMID: 23741339; PMCID: PMC3669316.
[7]. Malek AJ, Robinson BD, et,al. Doxycycline improves traumatic brain injury outcomes in a murine survival model. J Trauma Acute Care Surg. 2020 Sep;89(3):435-440. doi: 10.1097/TA.0000000000002801. PMID: 32467458.
[8]. Pereira JA, Taniguti AP, et,al. Doxycycline ameliorates the dystrophic phenotype of skeletal and cardiac muscles in mdx mice. Muscle Nerve. 2012 Sep;46(3):400-6. doi: 10.1002/mus.23331. PMID: 22907231.
[9]. Boynton FDD, Ericsson AC, et,al. Doxycycline induces dysbiosis in female C57BL/6NCrl mice. BMC Res Notes. 2017 Nov 29;10(1):644. doi: 10.1186/s13104-017-2960-7. PMID: 29187243; PMCID: PMC5708113.
Doxycycline(多西环素DOX)是一种四环素衍生物的广谱抗生素,通过干扰细菌核糖体30S亚基A位点上活化的氨基酰基tRNA的结合来抑制蛋白质合成。它被用来治疗由细菌和原生动物引起的各种感染。Doxycycline也是一种非特异性基质金属蛋白酶(MMP)抑制剂。Doxycycline具有抗肿瘤和促细胞凋亡活性[1-4]。
Doxycycline (0 - 250µM;72h)抑制乳腺癌细胞和乳腺球细胞活力[5]。Doxycycline (100 ng/mL, 1µg/mL;24 h)降低人细胞系的增殖[6]。Doxycycline (100 ng/mL, 1 µg/mL; 24 h)减少人类细胞系的增殖[7]。
Doxycycline (20mg /kg; p.o.;2times) 在小鼠脑外伤后改善了行为和运动功能,Doxycycline在保护小鼠血脑屏障完整性方面有效[8]。Doxycycline (DOX in drinking water (6 mg/ml, 5 ml/day/mice) ; 36 days)显著减少了骨骼肌和心肌的营养不良表型,并改善了前肢肌肉力量[9]。雌性C57BL/6NCrl小鼠的FM(粪便微生物群)在给予Doxycycline (doxycycline in the drinking water at 2 mg/ml during weeks 1, 2, and 4)后显著改变[10]。