PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 20804176-3 2010 We have shown that STAT3 knockdown in B16 murine melanoma by siRNA polyplexes of polyethylenimine (PEI) or its stearic acid derivative (PEI-StA) induces B16 cell death in vitro and in vivo. Polyethyleneimine 99-102 autosomal striping Mus musculus 140-143