Merbarone is a Type II DNA topoisomerase inhibitor. Merbarone inhibits the catalytic activity of human topoisomerase IIalpha by blocking DNA cleavage. Merbarone induces activation of caspase-activated DNase and excision of chromosomal DNA loops from the n
Pamiparib is a highly potent and selective PARP inhibitor. BGB-290 selectively binds to PARP and prevents PARP-mediated repair of single-strand DNA breaks via the base-excision repair (BER) pathway. This enhances the accumulation of DNA strand breaks, pro
Pamiparib, also known as BGB-290, is a highly potent and selective PARP inhibitor with favorable drug metabolism and pharmacokinetic properties. BGB-290 selectively binds to PARP and prevents PARP-mediated repair of single-strand DNA breaks via the base-excision repair (BER) pathway. This enhances the accumulation of DNA strand breaks, promotes genomic instability, and eventually leads to apoptosis. BGB-290 may both potentiate the cytotoxicity of DNA-damaging agents and reverse tumor cell chemo- and radioresistance.
Nemorubicin HCL is the salt form of Nemorubicin, also known as PNU152243A, a doxorubicin derivative that differs significantly from its parent drug in terms of spectrum of antitumor activity, metabolism and toxicity profile. The drug is active on tumors resistant to alkylating agents, topoisomerase II inhibitors and platinum derivatives. It works primarily through topoisomerase I inhibition. Of note, Nemorubicin is active in cells with upregulation of the nucleotide excision repair (NER) pathway, where current therapies fail. Nemorubicin is biotransformed in the liver into cytotoxic metabolites that may further contribute to render this drug highly active against primary liver tumors or liver metastases.
Patent Blue V(Acid blue 1)是一款应用于眼科的新型生物染料,特别是在进行视网膜切除手术时,用以染色以便去除内限制膜(ILM)。该染料在玻璃体视网膜手术中确保了对视网膜结构的有效标记,从而实现精确去除。光谱分析揭示,Patent Blue V在450 nm以下和600 nm以上具有强烈的吸收特性,展现蓝绿色。此外,它亦作为淋巴管造影术中的追踪剂,在染色活检手术中使用以助于淋巴结的切除。