m 443

M443 is a potent small molecule inhibitor of MRK that inhibits radiation-induced activation of p38 and Chk2 and can be used in cancer research.

Acotiamide monohydrochloride trihydrate (Z-338 HCl) is the hydrochloride salt form of acotiamide, a prokinetic agent with gastrointestinal (GI) motility-enhancing activity. Although the exact mechanism by which acotiamide exerts its effect has yet to be fully elucidated, this agent appears to inhibit acetylcholinesterase (AchE), an enzyme responsible for the breakdown of acetylcholine (Ach). Increased Ach concentrations lead to an improvement of gastric emptying and GI motility and eventually to a reduction of dyspepsia symptoms.

β-Defensin-2 is a peptide with antimicrobial properties that protects the skin and mucosal membranes of the respiratory, genitourinary, and gastrointestinal tracts.1It inhibits the growth of periodontopathogenic and cariogenic bacteria, includingP. gingivalisandS. salivarius.2β-Defensin-2 (30 μg/ml) stimulates gene expression and production of IL-6, IL-10, CXCL10, CCL2, MIP-3α, and RANTES by keratinocytes.3It also stimulates calcium mobilization, migration, and proliferation of keratinocytes when used at concentrations of 30, 10, and 40 μg/ml, respectively. β-Defensin-2 induces IL-31 production by human peripheral blood-derived mast cellsin vitrowhen used at a concentration of 10 μg/ml and by rat mast cellsin vivofollowing a 500 ng intradermal dose.4Expression of β-defensin-2 is increased in psoriatic skin and chronic wounds.5,6 1.Lehrer, R.I.Primate defensinsNat. Rev. Microbiol.2(9)727-738(2004) 2.Ouhara, K., Komatsuzawa, H., Yamada, S., et al.Susceptibilities of periodontopathogenic and cariogenic bacteria to antibacterial peptides, β-defensins and LL37, produced by human epithelial cellsJ. Antimicrob. Chemother.55(6)888-896(2005) 3.Niyonsaba, F., Ushio, H., Nakano, N., et al.Antimicrobial peptides human β-defensins stimulate epidermal keratinocyte migration, proliferation and production of proinflammatory cytokines and chemokinesJ. Invest. Dermatol.127(3)594-604(2007) 4.Niyonsaba, F., Ushio, H., Hara, M., et al.Antimicrobial peptides human β-defensins and cathelicidin LL-37 induce the secretion of a pruritogenic cytokine IL-31 by human mast cellsJ. Immunol.184(7)3526-3534(2010) 5.Huh, W.-K., Oono, T., Shirafuji, Y., et al.Dynamic alteration of human β-defensin 2 localization from cytoplasm to intercellular space in psoriatic skinJ. Mol. Med. (Berl.)80(10)678-684(2002) 6.Butmarc, J., Yufit, T., Carson, P., et al.Human β-defensin-2 expression is increased in chronic woundsWound Repair Regen.12(4)439-443(2004)