Mal-C6-α-Amanitin is a drug-linker conjugate for ADC with potent antitumor activity by using α-Amanitin (an RNA polymerase II inhibitor), linked via the ADC linker Mal-C6.
IC50 & Target[1]
Daunorubicins/Doxorubicins
分子量
1211.34
Formula
C55H78N12O17S
CAS 号
1578249-76-9
运输条件
Room temperature in continental US; may vary elsewhere.
α-Amanitin 是几种致命毒蘑菇的主要毒素，通过抑制RNA 聚合酶 II (RNA-polymerase II) 发挥其毒性作用。
α-Amanitin Chemical Structure
CAS No. : 23109-05-9
规格
价格
是否有货
数量
100 μg
￥1950
In-stock
500 μg
￥4300
In-stock
1 mg
￥6500
In-stock
2 mg
￥9800
In-stock
5 mg
￥19500
In-stock
10 mg
询价
50 mg
询价
* Please select Quantity before adding items.
生物活性
α-Amanitin is the principal toxin of several deadly poisonous mushrooms, exerting its toxic function by inhibiting RNA-polymerase II.
IC50 & Target
Traditional Cytotoxic Agents
体外研究 (In Vitro)
α-Amanitin decreases TAF15 mRNA and TAF15 protein levels in MKN45 cells, and inhibits the RNAPII activity towards TAF15 mRNA[2]. alpha-Amanitin decreases cell viability by 14%, 21%, 41%, 44%, and 50% at concentrations of 100, 10, 1, 0.1, and 0.01 µg/mL, respectively. The LD50 of the alpha-Amanitin at 36 h is measured as 1 µg/mL. The total amount of protein within the cell at 24 h is significantly increased for the 1 µg/mL dose of alpha-Amanitin compared to the control[3]. α-Amanitin dramatically decreases the expression of gap junctional genes (Gja1, Gja4 and Gjc1) and FSHr and LHr in cumulus cells[4].
上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究 (In Vivo)
The intravenous LD50 dose of alpha-Amanitin is 0.327 mg/kg body weight after intravenous injection into BALB/c mice. After 12 h of alpha-Amanitin injection in caudal vein, the levels of WBC, RBC and HGB decrease significantly, while those of BUN and Crea increase significantly in serum. alpha-Amanitin inhibits some genes (Hsp90b1, Irx4, etc.), whose encoded proteins regulate the RNA polymerase II activity. alpha-Amanitin down-regulates some proteins (Nmi, Trpc5, etc.) taking part in the transcription progress[1]. alpha-Amanitin has potent activity in DTC suppression. Mice injected with alpha-Amanitin (0.4 mg/kg, i.p.)-treated cells maintain their body weight, while those receiving a peritoneal injection of MKN45 cells show a constant decrease in body weight[2].
上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.
分子量
918.97
Formula
C39H54N10O14S
CAS 号
23109-05-9
中文名称
alpha-鹅膏毒素；alpha-鹅膏毒肽；alpha-鹅膏菌素；alpha-鹅膏覃碱
运输条件
Room temperature in continental US; may vary elsewhere.
[1]. Zhao J, et al. Pathological effects of the mushroom toxin alpha-amanitin on BALB/c mice. Peptides. 2006 Dec;27(12):3047-3052.
[2]. Kume K, et al. α-Amanitin Restrains Cancer Relapse from Drug-Tolerant Cell Subpopulations via TAF15. Sci Rep. 2016 May 16;6:25895
[3]. Kaya E, et al. Evaluation and comparison of alpha- and beta-amanitin toxicity on MCF-7 cell line. Turk J Med Sci. 2014;44(5):728-32
[4]. Park MW, et al. RNA Polymerase II Inhibitor, α-Amanitin, Affects Gene Expression for Gap Junctions and Metabolic Capabilities of Cumulus Cells, but Not Oocyte, during in vitro Mouse Oocyte Maturation. Dev Reprod. 2013 Mar;17(1):63-72
Cell Assay [3]
The MTT assay is used to evaluate the overall functional integrity and viability of the cultured cells. The MCF-7 cells are put into 96-well plates (2×104 for each well), which are incubated for 24 h. The specific concentrations of alpha-Amanitin and β-Amanitin are added to the cell culture medium, and plates are incubated for an additional 36 h. MTT solution (1:10 ratio) and dimethyl sulfoxide (DMSO) (100 µL) are then added to the cell culture medium and plates are incubated overnight. The absorbance is measured at 570 nm on a plate reader. This experiment is repeated 3 times. The absorbance data are calculated as percentages according to the control group.
上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration [2]
For tumorigenicity tests, six colonies (untreated) and DTCs derived from MKN45 cells are individually injected subcutaneously into the left and right side of the backs of six 6-week-old female nude mice (BALB/cAjcl-nu/nu). These mice are monitored for 49 days after the inoculation or until tumors reach 10 mm in the largest diameter, and are then euthanized. For the PC model, 1.0×106 MKN45 cells are injected intraperitoneally into six 6-week-old female nude mice (BALB/cAjcl-nu/nu). Mice are then treated with CIS (4.0 mg/kg, intraperitoneal administration) or a combination of CIS and alpha-Amanitin (0.4 mg/kg, intraperitoneal administration). For the combination treatment, alpha-Amanitin is given 24 hours before CIS. Body weight is monitored for 28 days after the treatment.
上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.
参考文献
[1]. Zhao J, et al. Pathological effects of the mushroom toxin alpha-amanitin on BALB/c mice. Peptides. 2006 Dec;27(12):3047-3052.
[2]. Kume K, et al. α-Amanitin Restrains Cancer Relapse from Drug-Tolerant Cell Subpopulations via TAF15. Sci Rep. 2016 May 16;6:25895
[3]. Kaya E, et al. Evaluation and comparison of alpha- and beta-amanitin toxicity on MCF-7 cell line. Turk J Med Sci. 2014;44(5):728-32
[4]. Park MW, et al. RNA Polymerase II Inhibitor, α-Amanitin, Affects Gene Expression for Gap Junctions and Metabolic Capabilities of Cumulus Cells, but Not Oocyte, during in vitro Mouse Oocyte Maturation. Dev Reprod. 2013 Mar;17(1):63-72
