NCT-58是 HSP90 C末端的有效抑制剂。NCT-58 不诱导热休克反应 (HSR)，因为它靶向 C 末端区域，并通过同时下调 HER 家族成员以及抑制 Akt 磷酸化来引发抗肿瘤活性。NCT-58 可杀死曲妥珠单抗耐药 (Trastuzumab-resistant) 的乳腺癌干细胞样细胞。NCT-58 诱导 HER2 阳性乳腺癌细胞凋亡。在抗曲妥珠单抗异种移植模型中，NCT-58 可抑制生长和血管生成。
货号:ajcx38154
CAS:2411429-33-7
分子式:C27H34N2O5
分子量：466.57
溶解度:DMSO : 50 mg/mL (107.17 mM; Need ultrasonic)
纯度：98%
存储：Store at -20°C
库存：现货

Background:

NCT-58 is a potent inhibitor of C-terminal HSP90. NCT-58 does not induce the heat shock response (HSR) due to its targeting of the C-terminal region and elicits anti-tumor activity via the simultaneous downregulation of HER family members as well as inhibition of Akt phosphorylation. NCT-58 kills Trastuzumab-resistant breast cancer stem-like cells. NCT-58 induces apoptosis in HER2-positive breast cancer cells[1].

NCT-58 treatment (0.1-20 μM; 72 hours) dose-dependently reduces cell viability in HER2-positive BT474 and SKBR3 cells[1]. NCT-58 treatment (0.1-10 μM; 72 hours) increases the number of early and late apoptotic cells in HER2-positive BT474 and SKBR3 cells[1].NCT-58 treatment (2-10 μM; 72 hours) effectively reduced the levels of truncated p95HER2 and its phosphorylated form, as well as downregulation of Akt and phospho-Akt (Ser473) protein contents in JIMT-1 and MDA-MB-453 cells[1].

NCT-58 (30 mg/kg; i.p.; every other day for 47 days) suppresses Trastuzumab-resistant tumor growth[1].NCT-58 (30 mg/kg; i.p.; every other day for 47 days) causes a significant impediment of tumor growth and a marked decrease in tumor weight[1].

[1]. Park S, et al. The C-terminal HSP90 inhibitor NCT-58 kills trastuzumab-resistant breast cancer stem-like cells. Cell Death Discov. 2021;7(1):354.