[D-Arg<sup>1</sup>,D-Phe<sup>5</sup>,D-Trp<sup>7,9</sup>,Leu<sup>11</sup>]Substance P (trifluoroacetate salt)

[D-Arg1,D-Phe5,D-Trp7,9,Leu11]Substance P (trifluoroacetate salt)

CAT N°: 24829
Price:

166.00 141.10

[D-Arg1,D-Phe5,D-Trp7,9,Leu11]Substance P (SPD-D) is an analog of substance P (Item No. 24035) and a broad-spectrum neuropeptide antagonist with anticancer activity.{39631} It blocks intracellular calcium increases induced by vasopressin, bradykinin (Item No. 37408), gastrin (Item No. 24457), and galanin (Item No. 24456) in H-510 small cell lung carcinoma (SCLC) cells. SPD-D also blocks vasopressin- and bradykinin-induced MAPK signaling in H-510 SCLC cells in a concentration-dependent manner. It inhibits DNA synthesis in a panel of cancer cell lines (IC50s = 20-50 ?M) and reduces colony formation of HC12, ICR-SC112, HX149, and NCI-H226 cancer cells in vitro (IC50s = 0.5-6.5 ?M).{39632} In vivo, SPD-D (2.1 ?g, s.c.) inhibits tumor growth in HC12 and ICR-SC112 SCLC mouse xenograft models.{39633}

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