nucleolar

Metarrestin (ML246) 是一种口服有效的选择性核仁周区室 (PNC) 抑制剂，可有效抑制转移。Metarrestin 破坏核仁结构并抑制 RNA 聚合酶 (Pol) I 转录，部分是通过与翻译延伸因子 eEF1A2 的相互作用。

4-Thiouridine (4-TU) 是一种光活化核糖核苷类似物，广泛用于RNA 分析。

BMH-22 is an RNA polymerase I inhibitor that acts by causing nucleolar stress and showing potent anticancer activity across many tumor types.

BMH-23 is an RNA polymerase I inhibitor that acts by causing nucleolar stress and showing potent anticancer activity across many tumor types.

BMH-9 is an RNA polymerase I inhibitor that acts by causing nucleolar stress and showing potent anticancer activity across many tumor types.

Rudolfomycin is a class II anthracycline antitumor antibiotic that inhibit the synthesis of nucleolar RNA in intact tumor cells.

Pidnarulex HCl is the salt form of CX-5461, a first-in-class non-genotoxic small molecule targeted inhibitor of RNA polymerase I (Pol I) that activates the p53 pathway without causing DNA damage. CX-5461 selectively inhibits rRNA synthesis by Pol I in the nucleolus, but does not inhibit mRNA synthesis by RNA Polymerase II (Pol II) and does not inhibit DNA replication or protein synthesis. Inhibition of Pol I results in nucleolar stress and release of ribosomal proteins (RP) from the nucleolus. The RP bind to Mdm2 and liberate p53 to orchestrate apoptosis in cancer cells. CX-5461 demonstrates a favorable preclinical profile, potently and selectively kills cancer cells, demonstrates robust in vivo efficacy in multiple models, and has demonstrated oral bioavailability in multiple species.

WDR5-IN-4 TFA 是一种染色质相关 WD 重复结构域 5 蛋白 (WDR5) 的 WIN 位点抑制剂，Kd 值为 0.1 nM。WDR5-IN-4 TFA 能够从染色质中取代 WDR5，并降低相关基因的表达，引起翻译抑制和核仁应激。具有抗癌作用。