Conglobatin (Synonyms:FW-04-806)
目录号 : KM10324 CAS No. : 72263-05-9 纯度 : 98%

Conglobatin (FW-04-806) 是一种从 Streptomyces conglobatus 培养物中分离得到的大环内酯双内酯。Conglobatin 是一种具有口服活性的 Hsp90 抑制剂,可以与 Hsp90 的 N 末端域结合,并破坏 Hsp90-Cdc37 复合物的形成。Conglobatin 可诱导人乳腺癌细胞和食道鳞状细胞癌细胞凋亡,并在体内表现出抗肿瘤活性。

规格 价格 是否有货 数量
500µg
In-stock
1mg
In-stock
5mg
In-stock

Other Forms of Rapamycin:

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生物活性

Conglobatin (FW-04-806), a macrolide dilactone, is isolated from the culture of Streptomyces conglobatus. Conglobatin is an orally active Hsp90 inhibitor. Conglobatin can bind to the N-terminal domain of Hsp90 and disrupt Hsp90-Cdc37 complex formation. Conglobatin induces apoptosis in human breast cancer cells and esophageal squamous cell carcinoma cells, and exhibits antitumor activity in vivo.

体外研究

Conglobatin (6.25-100 μM; 48 h) markedly inhibits the proliferation of SKBR3 and MCF-7 cells, with IC50s of 12.11 and 39.44 μM, respectively.
Conglobatin inhibits cell proliferation in EC109, KYSE70, KYSE450, KYSE150, KYSE180, and KYSE510 cells, with IC50s of 16.43, 15.89, 10.94, 10.50, 10.28, and 9.31 μM, respectively.
Conglobatin (10-40 μM; 24 h) displays obvious arrest of SKBR3 and MCF-7 cells in the G2/M phase. Conglobatin induces apoptosis through caspase-dependent pathways in SKBR3 and MCF-7 cells.
Conglobatin (10-40 μM; 3-24 h) reduces Hsp90 client protein levels and induces proteasome-dependent degradation.
Conglobatin binds to the N-terminal of Hsp90, does not affect ATP-binding capability of Hsp90, but inhibits Hsp90/Cdc37 chaperone/co-chaperone interactions.

Cell Proliferation Assay

Cell Line: SKBR3 and MCF-7 cells
Concentration: 6.25, 12.5, 25, 50, 100 μM
Incubation Time: 48 hours
Result: Inhibited the proliferation of SKBR3 and MCF-7 cells in a dose-dependent manner.

Cell Cycle Analysis

Cell Line: SKBR3 and MCF-7 cells
Concentration: 10, 20, 40 μM
Incubation Time: 24 hours
Result: Increased the G2/M cell population and decreased the population in the S and G0/G1 phases.

Western Blot Analysis

Cell Line: SKBR3 and MCF-7 cells
Concentration: 10, 20, 40 μM
Incubation Time: 3, 6, 12, 24 hours
Result: Decreased the levels of the client proteins HER2, p-HER2, Raf-1, Akt, and p-Akt in a dose and time-dependent manner in SKBR3 cells.
Reduced the the levels of the client proteins Raf-1, Akt, and p-Akt in a dose and time-dependent manner in MCF-7 cells.
体内研究

Conglobatin (50-200 mg/kg; i.g. q3d for 24 d) inhibits the tumor growth of SKBR3 and MCF-7 human breast cancer xenograft models in a dose-dependent manner.
Conglobatin (4-8 mg/kg; i.p. daily for 21 days) inhibits tumor growth in EC109 and KYSE510 tumor xenograft models with low toxicity

Animal Model: BALB/c (nu/nu) athymic mice with SKBR3 and MCF-7 tumor xenograft
Dosage: 50, 100, 200 mg/kg
Administration: Oral gavage every 3 days for 24 days
Result: Showed inhibition of tumor growth at a rate of 39.1%, 52.7%, and 67.5% in the SKBR3 cell line groups and 27.3%, 39.8%, 54.3% in the MCF-7 cell line groups at the three increasing doses, respectively.
Was well tolerated.
分子式
C28H38N2O6
分子量
498.61
CAS号
72263-05-9
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

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