产品名称：HCI-2509(SP2509),ReversibleLSD1Inhibitor.

Molecular Weight:	437.90
Formula:	C19H20ClN3O5S
Purity:	≥98%
CAS#:	1423715-09-6
Solubility:	DMSO up to 50 mM
Chemical Name:	(E)-N'-(1-(5-chloro-2-hydroxyphenyl)ethylidene)-3-(morpholinosulfonyl)benzohydrazide
Storage:	Powder: 4oC 1 year. DMSO: 4oC 3 month; -20oC 1 year.

Biological Activity:

HCI-2509 (also named as SP2509 or LSD1-C12) is a highly potent, specific, and reversible Lysine Specific Demethylase-1 (LSD1) inhibitor. It inhibits LSD1 in biochemical assay with an IC50 ~13 nM, and has no activity against monoamine oxidase proteins MAO-A and MAO-B (>300 µM). HCI-2509 is a non-competitive inhibitor to bind LSD1, changes its solution dynamics in a manner distinct from TCP. It has minimal inhibition of CYPs and hERG, shows cellular activity against several cancer cell lines including endometrial, breast, colorectal, pancreatic, and prostate cancer (IC50 ~0.3-2.5 µM). HCI-2509 displayed sing-agent efficacy in multiple xenograft models and had good PK/PD relationship by using tumor histone H3K4 and H3K9 methylation. HCI-2509 serves as a very useful chemical probe to study the target biology of LSD1.

How to Use:

In vitro: HCI-2509 was used at 1 µM in vitro.
In vivo: HCI-2509 was administered through IP injection at 25-30 mg/kg once per day in xenografts models.

Reference:

• 1. Fiskus W, et al. Highly effective combination of LSD1 (KDM1A) antagonist and pan-histone deacetylase inhibitor against human AML cells. (2014) Leukemia. 28(11):2155-64. 
• 2. Sorna V, et al. High-Throughput Virtual Screening Identifies Novel N'-(1-Phenylethylidene)-benzohydrazides as Potent, Specific, and Reversible LSD1 Inhibitors. (2013) J Med Chem. 56(23):9496-508. 
• 3. Wiles ET, et al. BCL11B is up-regulated by EWS/FLI and contributes to the transformed phenotype in Ewing sarcoma. (2013) PLoS One. 8(3):e59369. 
• 4. Bret J. Stephens, et al.: Activity of the LSD1 inhibitor HCI-2509 in ER-negative breast cancer cells. (2012) AACR Chicago. Abstract 1045. Cancer Research: April 15, 2012; Volume 72, Issue 8, Supplement 1.
• 5. Emily R, et al. Inhibition of LSD1 disrupts global EWS/ETS transcriptional function in Ewing sarcoma. (2014) AACR San Diego. Abstract 3679.