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Apexbio Technology LLC NSC 74859 501919-59-1 200mg
Supplier: Apexbio Technology LLC A8338200
NSC 74859 (CAS 501919-59-1) also known as S3I-201 is a selective inhibitor of the signal transducer and activator of transcription 3 (Stat3) pathway S3I-201 disrupts Stat3 DNA-binding activity exhibiting an IC50 of 86 M in vitro with minimal inhibitory effects on Stat1 and Stat5 It also impedes the formation of Stat1-Stat3 and Stat1-Stat1 complexes with IC50 values of 160 M and 300 M respectively In NIH 3T3/v-Src fibroblasts S3I-201 reduces constitutive Stat3 activation and pTyr-705 Stat3 levels induces apoptosis at 30 100 M and downregulates cyclin D1 Bcl-xL and survivin expression This compound is widely utilized in research to interrogate Stat3 function in cellular transformation and oncogenic signaling pathways
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