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Dolastatin 15

CAS No. : 123884-00-4

MCE 站：Dolastatin 15

产品活性：Dolastatin 15 (DLS 15)，一种从 Dolabella auricularia 中提取的去甲肽，是一种有效的抗有丝分裂剂 (antimitotic)，在结构上与抗微管蛋白剂 Dolastatin 10 有关。Dolastatin 15 诱导多发性骨髓瘤细胞周期阻滞和凋亡。Dolastatin 15 可作为 ADC 细胞毒素。

研究领域：Cell Cycle/DNA Damage  |  Cytoskeleton  |  Antibody-drug Conjugate/ADC Related  |  Apoptosis

作用靶点：Microtubule/Tubulin  |  ADC Cytotoxin  |  Apoptosis

In Vitro: Dolastatin 15 (DLS 15) induces cell cycle arrest at the G2/M phase followed by apoptosis in various human myeloma cell lines (RPMI8226, U266, and IM9). Dolastatin 15 induces apoptosis of myeloma cells via activation of both mitochondrial- and Fas (CD95)/Fas-L (CD95-L)-mediated pathways. Dolastatin 15 (DLS 15) displays growth inhibitory activity against all four SCLC cell lines (NCI-H69, NCI-H82, NCI-H345, NCI-H446) with IC₅₀ values ranging from 0.039-28.8 nM, which were 2.7-9.2-fold higher than the values for dolastatin 10. All four SCLC cell lines underwent G2/M arrest within 24 hours of exposure to dolastatin 15.

In Vivo: Dolastatin 15 conjugates to Trastuzumab via lysine residues at the drug C-terminus using a non-cleavable linker (Trastuzumab-amide-C-term-Dol15) produced target-dependent growth inhibition of cells endogenously expressing high HER2 levels (i.e., SK-BR-3, SK-OV-3) in vitro. This ADC was effective at varying doses (i.e., 10 and 20 mg/kg) in the SK-OV-3 human ovarian cancer xenograft.

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