YM-244769

Research use only, not for human use.

YM-244769 is an effective inhibitor of Na+/Ca2+ exchange 3 (NCX3) with an IC50 of 18 nM. YM-244769 has efficient protective effects on neurons and kidneys.

YM-244769 is an effective inhibitor of Na+/Ca2+ exchange 3 (NCX3) with an IC50 of 18 nM. YM-244769 has efficient protective effects on neurons and kidneys. (In Vitro):YM-244769 (0.3 or 1 μM) efficiently suppresses the hypoxia/reoxygenation-induced cell damage in SH-SY5Y cells treated with NCX1 antisense (i.e., SH-SY5Y cells primarily expressing NCX3) more than in those treated with NCX3 antisense (i.e., SH-SY5Y cells primarily expressing NCX1). YM-244769 (0.003-1 μM) inhibits the initial rates of 45 Ca 2+ uptake into NCX1, NCX2, and NCX3 transfectants with IC 50 values of 68±2.9, 96±3.5, and 18±1.0 nM, respectively, indicating that YM-244769 is approximately four to five times more selective to NCX3 than other isoforms.

YM-244769 (0.003-1 μM) inhibits dose dependently the initial rates of 45Ca2+ uptake into NCX1, NCX2, and NCX3 transfectants with IC50 values of 68 ± 2.9, 96 ± 3.5, and 18 ± 1.0 nM, respectively.YM-244769 (0.3 or 1 μM) efficiently protects against the hypoxia/reoxygenation-induced lactate dehydrogenase (LDH) release in SH-SY5Y cells and in LLC-PK1 cells (1 μM).YM-244769 possesses reverse mode-selectivity.YM-244769 (1 and 10 μM) inhibits NCX current (INCX) in a concentration- and [Na+]i-dependent manner, the IC50 against the unidirectional outward INCX (Ca2+ entry mode) is 0.05 μM. The IC50 values against the bidirectional outward and inward INCX are similar and approximately 100 nM with a Hill coefficient of about 1.YM-244769 is trypsin-insensitive.Cell Viability Assay Cell Line:SH-SY5Y cells treated with NCX1 or NCX3 antisense Concentration:0.3 and 1 μM Incubation Time:Result:Hypoxia/reoxygenation-induced LDH release was significantly attenuated: reduction in cell damage was greater in cells treated with NCX3 antisense (by 61%) than in cells treated with NCX1 antisense (by 35%).0.3 or 1 μM efficiently suppressed the hypoxia/reoxygenation-induced cell damage in SH-SY5Y cells treated with NCX1 antisense more than in those treated with NCX3 antisense.

YM-244769 (0.1-1 mg/kg; p.o.; once) exhibits dose-dependently natriuretic action in mice and significantly increases urinary excretion of Ca2+ as well as Ca2+/Cr ratio. Animal Model:Wild-type C57BL/6J mice and NCX-KO miceDosage:0.1, 0.3 and 1 mg/kg Administration:Oral administration, once Result:Caused a dose-dependent increase (up to approximately 200%) in urine volume and urinary excretion of electrolytes (Na+, K+ and Cl-). Natriuretic actions were equivalently observed in NCX1-KO and WT, but disappeared in NCX2-KO and double KO.

3-Pyridinecarboxamide, N-[(3-aminophenyl)methyl]-6-[4-[(3-fluorophenyl)methoxy]phenoxy]-

GPCR/G Protein

Calcium Channel

ROCK1|ROCK2

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838819-70-8

443.477

C26H22FN3O3

>98% (HPLC)

In Vitro:?DMSO : 120 mg/mL (270.59 mM)

O=C(NCC1=CC=CC(N)=C1)C2=CN=C(OC3=CC=C(OCC4=CC=CC(F)=C4)C=C3)C=C2

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(-20℃)

With Ice Pack

≥ 2 years