Adjudin

Biological Activity

Adjudin (also known as AF-2364) is a potent Cl^- channel blocker, with a superior mitochondria-inhibitory effect. Adjudin inhibits cell proliferation in a dose dependent manner in SGC-7901 (human gastric adenocarcinoma cell), MDA-MB-231 (human breast adenocarcinoma cell), Smmc-7721 (human hepatoma cell) and MIA Paca-2 (human pancreatic adenocarcinoma cell) cells. The IC50 of Adjudin is determined to be 58.0 µM, 13.8 µM, 72.3 µM and 52.7 µM against SGC-7901, MDA-MB-231, Smmc-7721 and MIA Paca-2 cells, respectively, after treatment for 24 h. Similar results are obtained in other human and mice cancer cell lines. The IC50 of Adjudin in A549 cells and PC3 cells is 63.1 µM and 93.0 µM, respectively. Adjudin-treated mice show significant tumor growth inhibition compared with the control group (P<0.0001 in the human lung carcinoma cells A549 and P=0.006 in the prostate carcinoma cells PC3).

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

Species	Mouse	Rat	Rabbit	Guinea pig	Hamster	Dog
Weight (kg)	0.02	0.15	1.8	0.4	0.08	10
Body Surface Area (m2)	0.007	0.025	0.15	0.05	0.02	0.5
Km factor	3	6	12	8	5	20

Animal A (mg/kg) = Animal B (mg/kg) multiplied by	Animal B Km
	Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the K_m factor for a mouse and then divide by the K_m factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

Chemical Information

References

[1] Li K, et al. Hum Reprod. Inhibition of sperm capacitation and fertilizing capacity by adjudin is mediated by chloride and its channels in humans.