Hygrolidin is a macrocyclic lactone originally isolated from S. hygroscopicus. It inhibits proliferation of a variety of cancer cell lines, including DLD-1 colon cancer, LNCaP prostate cancer, and K562 leukemia cells (IC50s = 2.9, 5.2, and 33 ng ml, respectively). Hygrolidin induces the expression and levels of p21 in DLD-1 cells, but not WI-38 fibroblasts, and leads to cell accumulation in the G1 and S phases without inducing apoptosis. It has antiparasitic activity against T. cruzi, L. donovani, and T. b. brucei but also induces cytotoxicity in HepG2 cells (IC50s = 1.1, 72.5, 77, and 24.5 nM, respectively).
9(Z),11(E),13(E)-Octadecatrienoic Acid ethyl ester (α-ESA) is a conjugated polyunsaturated fatty acid commonly found in plant seed oil. This fatty acid accounts for about 60% of the total fatty acid composition of bitter gourd seed oil and about 70% in tung oil. α-ESA is metabolized and converted to conjugated linoleic acid (9Z,11E-CLA) in rats. It has shown potential as a tumor growth suppressor. In colon cancer Caco-2 cells, α-ESA induced apoptosis through up-regulation of GADD45, p53, and PPARγ. In DLD-1 cells supplemented with α-ESA, apoptosis was induced via lipid peroxidation with an EC50 of 20 μM. It also inhibits DNA polymerases and topoisomerases with IC50s ranging from ~5-20 μM for different isoforms of the enzymes. α-ESA ethyl ester is a neutral, more lipid soluble form of the free acid.
CAY10753 is an inhibitor of tankyrase 2 (TNKS2; IC50= 0.3 nM).1It is selective for TNKS2 over TNKS1 (IC50= 6.1 nM), as well as poly(ADP-ribose) polymerase 1 (PARP1) and PARP2 (IC50s = 89.6 and 37.8 nM, respectively). CAY10753 inhibits proliferation of DLD-1 colorectal cancer cells when used at a concentration of 1 μM. 1.Tomassi, S., Pfahler, J., Mautone, N., et al.From PARP1 to TNKS2 inhibition: A structure-based approachMed. Chem. Lett.(2020)
8(E),10(E),12(Z)-Octadecatrienoic acid is a conjugated polyunsaturated fatty acid (PUFA) that has been found inC. officinalisseed oil and has anticancer activity.1,2,3It inhibits the growth of Caco-2 cells when used at concentrations ranging from 10 to 50 μM.28(E),10(E),12(Z)-Octadecatrienoic acid (10 μM) induces formation of thiobarbituric acid reactive substances (TBARS) and apoptosis in DLD-1 colorectal adenocarcinoma cells.3It also inhibits prostaglandin biosynthesis in sheep vesicular gland microsomes (IC50= 31 μM).4 1.Crombie, L., and Holloway, S.J.The biosynthesis of calendic acid, octadeca-(8E,10E, 12Z)-trienoic, acid, by developing marigold seeds: origins of (E,E,Z) and (Z,E,Z) conjugated triene acids in higher plantsJ. Chem. Soc. Perk. T. 12425-2434(1985) 2.Yasui, Y., Hosokawa, M., Kohno, H., et al.Growth inhibition and apoptosis induction by all-trans-conjugated linolenic acids on human colon cancer cellsAnticancer Res.26(3A)1855-1860(2006) 3.Shinohara, N., Ito, J., Tsuduki, T., et al.Jacaric acid, a linolenic acid isomer with a conjugated triene system, reduces stearoyl-CoA desaturase expression in liver of miceJ. Oleo Sci.61(8)433-441(2012) 4.Nugteren, D.H., and Christ-Hazelhof, E.Naturally occurring conjugated octadecatrienoic acids are strong inhibitors of prostaglandin biosynthesisProstaglandins33(3)403-417(1987)
JFD00950 is a human flap endonuclease 1 (FEN1) inhibitor with in vitro inhibition of flap cleavage activity as well as cytotoxic activity against a colon cancer cell line, DLD-1.
AZ0108 is an orally bioavailable, potent PARP1,2,6 inhibitor that potently inhibits centrosome clustering and is suitable for in vivo efficacy and tolerability studies. AZ0108 has been utilized as in vitro tools and in vivo probes to investigate the biological consequences of inhibiting centrosome clustering through PARP enzymes. AZ0108 is more selective in its enzyme inhibition profile and effects on cellular pathways and phenotypes. Specifically, AZ0108 inhibits PARPs 1, 2, and 6 with approximately 100-fold selectivity against PARP3 and TNKS1. Consistent with this lack of potencytowards tankyrase, AZ0108 is not active in a DLD-1 Wnt luciferase reporter assay.