產(chǎn)品描述: | Idarubicin HCl (4-demethoxydaunorubicin (NSC256439, 4-DMDR) HCl,Idamycin, Zavedos) 是蒽環(huán)類抗生素Idarubicin的鹽酸鹽形式,抑制MCF-7細(xì)胞中的 DNA拓?fù)洚悩?gòu)酶II (topo II),無細(xì)胞試驗(yàn)中IC50為3.3 ng/mL。Idarubicin 可誘導(dǎo)mTOR依賴的細(xì)胞毒素的自噬 |
靶點(diǎn): |
Topo II (MCF-7 cells)(Cell-free assay):3.3 ng/mL; Multicellular spheroids(Cell-free assay):7.9 ng/mL |
體外研究: |
Idarubicin對多細(xì)胞球體具有顯著的細(xì)胞毒性,比得上對單層細(xì)胞的抗增殖作用。Idarubicin抑制CYP450 2D6。[2] Idarubicin分別比doxorubicin和epirubicin有效57.5倍和25倍。Idarubicin能夠克服P-糖蛋白介導(dǎo)的多藥耐藥性。Idarubicin抑制PMN超氧游離基的形成。Idarubicin能夠耦合到單克隆抗體(抗-Ly-2.1,抗-L3T4,或抗-Thy-1),并且保留蛋白質(zhì)溶解度和抗體活性。Idarubicin抑制NALM-6細(xì)胞的增殖,IC50為12 nM |
體內(nèi)研究: |
Idarubicin的還原取決于酮還原酶,產(chǎn)生比大多數(shù)酮更高的立體選擇性,引起幾乎完全的(13S)-差向異構(gòu)。Idarubicin還原的高立體選擇性可能是由于Idarubicin結(jié)構(gòu)中靠近羰基的不對稱中心存在下,手性誘導(dǎo)導(dǎo)致的 |
細(xì)胞實(shí)驗(yàn): |
Cell lines: NALM-6細(xì)胞 Concentrations: 0.1 nM-10 μM Incubation Time: 24小時(shí) Method: 復(fù)合物中的Idarubicin相比于游離藥物的抗增殖活性通過[3H]胸苷攝取的抑制測量。簡而言之,NALM-6細(xì)胞(1.5 ×106/mL)加入平底微量滴定板(100 μL/well),在37℃下培養(yǎng)1小時(shí)。游離Idarubicin和Idarubicin-mAb復(fù)合物過濾滅菌并在無菌PBS中稀釋,以不同濃度重復(fù)3份加入孔中(100 μL/well),板在37oC,7% CO2下培養(yǎng)24小時(shí)。培育后,50 μL包含1 μCi [3H]胸苷的培養(yǎng)基加入每孔中,板進(jìn)一步培養(yǎng)4小時(shí)。將細(xì)胞采集到玻璃纖維濾紙上,干燥,并在閃爍計(jì)數(shù)器上計(jì)數(shù)。特異性研究使用相同的技術(shù)進(jìn)行,比較Idarubicin-抗-CD19偶聯(lián)物殺死CD19 +細(xì)胞的能力與不相關(guān)的Idarubicin-JGT偶聯(lián)物的細(xì)胞毒性。NALM-6細(xì)胞 (1.5×106/mL,300 μL 試管) 與不同濃度的Idarubicin-抗-CD 19或Idarubicin-JGT偶聯(lián)物在冰浴中培育30分鐘。然后在冰預(yù)冷的RPMI-1640 培養(yǎng)基(4 mL/wash)中洗滌3次,細(xì)胞重懸浮在新鮮培養(yǎng)基中,并轉(zhuǎn)移到96孔板(100 μL/well)。每個(gè)試管重復(fù)兩份建立,并且每管采集兩孔(每個(gè)藥物濃度一共4孔)。細(xì)胞用[3H]胸苷脈沖處理24小時(shí),然后采集 |
動物實(shí)驗(yàn): |
Animal Models: 大鼠,兔子,小鼠,狗 Dosages: 2 mg/kg,0 mg/kg -75 mg/kg,3 mg/kg 和 0 mg/kg -75 mg/kg Administration: 靜脈注射給藥 |
參考文獻(xiàn): |
1. Orlandi P, et al. Idarubicin and idarubicinol effects on breast cancer multicellular spheroids. J Chemother. 2005, 17(6), 663-667. 2. Colburn DE, et al. In vitro evaluation of cytochrome P450-mediated drug interactions between cytarabine, idarubicin, itraconazole and caspofungin. Hematology. 2004, 9(3), 217-221. 3. Siegsmund MJ, et al. Enhanced in vitro cytotoxicity of idarubicin compared to epirubicin and doxorubicin in rat prostate carcinoma cells. Eur Urol. 1997, 31(3), 365-370. 4. Cairo MS, et al. Effect of idarubicin and epirubicin on in vitro polymorphonuclear function: diminished superoxide radical formation compared to their parent compounds daunorubicin and doxorubicin. J Leukoc Biol. 1990, 47(3), 224-233. 5. Smyth MJ, et al. Immunosuppression of graft rejection with idarubicin-monoclonal antibody conjugates by elimination of T cell subsets in vivo. Transplantation. 1988, 46(1), 126-131. 6. Rowland AJ, et al. Preclinical investigation of the antitumour effects of anti-CD19-idarubicin immunoconjugates. Cancer Immunol Immunother. 1993, 37(3), 195-202. 7. Strolin Benedetti M, et al. Stereoselectivity of idarubicin reduction in various animal species and humans. Xenobiotica. 1991, 21(4), 473-480. |
溶解性: |
Soluble in DMSO、H2O |
保存條件: |
-20℃ |
配置溶液濃度參考: |
|
1mg |
5mg |
10mg |
1 mM |
1.873 ml |
9.364 ml |
18.728 ml |
5 mM |
0.375 ml |
1.873 ml |
3.746 ml |
10 mM |
0.187 ml |
0.936 ml |
1.873 ml |
50 mM |
0.037 ml |
0.187 ml |
0.375 ml |
|
注意: |
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