IcilinAG-3-5

Icilin(AG 3-5) is a synthetic super-agonist of TRPM8 ion channel.IC50 value:Target: TRPM8in vitro: icilin, a super-cooling agent, down-regulated the expression of cell cycle signature genes and caused G1 arrest in PC-3 prostate cancer cells. icilin affected cell cycle-related transcriptional modules and identified E2F1 transcription factor as a target master regulator of icilin. icilin reduced the activity and expression levels of E2F1 [1]. Icilin concentration-response curves were significantly shifted to the right when pH was lowered from 7.3 to 6.9, whereas those with menthol were unaltered in solutions of pH 6.1 [2]. Icilin modulated the expression level of various cell cycle regulators at transcription or post-translational levels. In addition, icilin activated JNK and p38 kinase pathways, but not ERK [4].in vivo: Rats injected with icilin (0.5, 1, 2.5, 5mg/kg, i.p.) displayed dose-related WDS that were inhibited by pretreatment with a fixed dose of clonidine (0.15 mg/kg, s.c.). Shaking behavior caused by a fixed dose (2.5mg/kg) of icilin was also inhibited in a dose-related manner by clonidine pretreatment (0.03-0.15 mg/kg, s.c.) and reduced by clonidine posttreatment (0.15 mg/kg, s.c.) [3].

Signaling Pathways >> Membrane Transporter/Ion Channel >> TRP Channel

Research Areas >> Cancer

[1]. Lee S, et al. Icilin inhibits E2F1-mediated cell cycle regulatory programs in prostate cancer. Biochem Biophys Res Commun. 2013 Nov 29;441(4):1005-10.

[2]. Andersson DA, et al. TRPM8 activation by menthol, icilin, and cold is differentially modulated by intracellular pH. J Neurosci. 2004 Jun 9;24(23):5364-9.

[3]. Kim J, et al. Icilin-evoked behavioral stimulation is attenuated by alpha-adrenoceptor activation. Brain Res. 2011 Apr 12;1384:110-7.

[4]. Kim SH, et al. Icilin induces G1 arrest through activating JNK and p38 kinase in a TRPM8-independent manner. Biochem Biophys Res Commun. 2011 Mar 4;406(1):30-5.

capsaicin | Capsazepine | EIPA | Diphenyleneiodonium chloride | HC-030031 | SKF-96365 | HC 067047 | AMG 9810 | GSK-1016790A | SAR7334 | PF-4840154 | RN-1734 | AMG-517 | SB-366791 | ML204

DATA ITEMS CITED :

2

MOLECULAR FORMULA :

C16-H13-N3-O4

MOLECULAR WEIGHT :

311.32

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

>1500 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :

Mutation in microorganisms

TEST SYSTEM :

Bacteria - Salmonella typhimurium

DOSE/DURATION :

700 ug/plate

REFERENCE :

JPPMAB Journal of Pharmacy and Pharmacology. (Pharmaceutical Soc. of Great Britain, 1 Lambeth High St., London SEI 7JN, UK) V.1- 1949- Volume(issue)/page/year: 35,110,1983