autophagy-in-7

Autophagy-IN-7 is an autophagy inhibitor for use in studying solid tumours.

NH2-PEG5-C6-Cl (K-7) is a PROTAC linker characterized by its PEG composition. It can be utilized in the synthesis of various PROTACs, facilitating the degradation of intracellular molecules via autophagy[1].

ERK1/2 inhibitor 13 (Compound 21y) is an orally bioavailable ERK inhibitor that targets ERK1 and ERK2, with IC50 values of 91.71 nM and 97.87 nM, respectively. It effectively suppresses the proliferation of cancer cell lines MCF-7, 4T1, MDA-MB-468, and HCC1970 with IC50 values of 0.67 μM, 2.76 μM, 2.15 μM, and 1.68 μM, respectively. Additionally, it inhibits cancer cell migration, induces apoptosis and autophagy in MCF-7 cells, and demonstrates anti-tumor and anti-metastatic effects in a 4T1 xenograft mouse model.

SIRT-IN-7 (Compound 7ba) is a SIRT inhibitor. It effectively suppresses the expression of SIRT1, SIRT2, and SIRT3, leading to increased acetylation and activation of p53. Additionally, SIRT-IN-7 inhibits the proliferation of breast cancer cells and induces apoptosis and autophagy, demonstrating antitumor activity.

PD-M6 is an mTOR PROTAC degrader with a DC50 of 4.8 μM, which facilitates the ubiquitination and degradation of mTOR. It inhibits the proliferation of cancer cell lines HeLa, MCF-7, and HepG2 with IC50 values of 11.3, 2.58, and 3.23 μM, respectively, and induces autophagy. Additionally, PD-M6 specifically targets the degradation of the key protein LAMTOR1 in the mTOR signaling pathway.

Malformin A is a cyclopentapeptide fungal metabolite that has been found in A. niger and has diverse biological activities. It is a plant growth regulator that induces malformations in plant structure. Malformin A inhibits replication of tobacco mosaic virus (TMV) in local lesion and leaf-disc assays (IC50s = 19.7 and 45.4 μg/ml, respectively). It is cytotoxic to NCI-H460, MIA PaCa-2, MCF-7, SF-268, and WI-38 cancer cells (IC50s = 70, 50, 100, 70, and 100 nM, respectively), inhibits proliferation of PC3 and LNCaP cells (IC50s = 130 and 90 nM, respectively), and induces apoptosis and necrosis in PC3 and LNCaP cells. Malformin A also increases the accumulation of reactive oxygen species, decreases the mitochondrial membrane potential, and induces autophagy in PC3 and LNCaP cells. It is toxic to mice when administered intraperitoneally (LD50 = 3.1 mg/kg) but not orally up to doses of 50 mg/kg.

Potent TBK1 (TANK-binding kinase-1) inhibitor (IC50 = 6 nM). Inhibits the formation of autophagosomes in lung cancer cells. Newman et al (2012) TBK1 kinase addiction in lung cancer cells is mediated via autophagy of Tax1bp1/Ndp52 and non-canonical NF-κB signalling. PLoS ONE 7 e50672 PMID:23209807 |McIver et al (2012) Synthesis and structure-activity relationships of a novel series of pyrimidines as potent inhibitors of TBK1/IKKe kinases. Bioorg.Med.Chem.Lett. 22 7169 PMID:23099093

Stephacidin B is a fungal metabolite that has been found inA. ochraceus.1Dimeric stephacidin B is rapidly converted to a monomer, avrainvillamide ,in vitro.2Stephacidin B is cytotoxic to a variety of cancer cells, including testosterone-independent PC3 and -sensitive LNCaP prostate cancer cells (IC50s = 0.37 and 0.06 μM, respectively) and estradiol-independent SK-BR-3 and -sensitive MCF-7 breast cancer cells (IC50s = 0.32 and 0.27 μM, respectively).1It induces apoptosis in HepG2 and Huh7 hepatocellular carcinoma cells when used at a concentration of 4 μM.3 1.Qian-Cutrone, J., Huang, S., Shu, Y.-Z., et al.Stephacidin A and B: Two structurally novel, selective inhibitors of the testosterone-dependent prostate LNCaP cellsJ. Am. Chem. Soc.124(49)14556-14557(2002) 2.Wulff, J.E., Herzon, S.B., Siegrist, R., et al.Evidence for the rapid conversion of stephacidin B into the electrophilic monomer avrainvillamide in cell cultureJ. Am. Chem. Soc.129(16)4898-4899(2007) 3.Hu, L., Zhang, T., Liu, D., et al.Notoamide-type alkaloid induced apoptosis and autophagy via a P38/JNK signaling pathway in hepatocellular carcinoma cellsRSC Adv.9(34)19855-19868(2019)

CAY17c is an inhibitor of bromodomain-containing protein 4 (BRD4; IC50= 0.71 μM), as well as class I histone deacetylases (HDACs; IC50s = 0.046, 0.058, 0.075, and 0.167 μM for HDAC1, -2, -3, and -8, respectively) and class IIb HDACs (IC50s = 0.073 and 0.923 μM for HDAC6 and HDAC10, respectively).1It is selective for these enzymes over BRD2, -3, and -T (IC50s = >20 μM for all), as well as over HDAC4, -5, -7, -9, and -11 (IC50s = >10 μM for all). CAY17c inhibits the proliferation of HCT116, SW620, and DLD-1 colorectal cancer cells (IC50s = 0.45, 1.78, and 2.11 μM, respectively), as well as induces apoptosis and autophagy in HCT116 cells. It reduces tumor growth in an HCT116 mouse xenograft model when administered at doses of 15 and 30 mg/kg. 1.Pan, Z., Li, X., Wang, Y., et al.Discovery of thieno[2,3-d]pyrimidine-based hydroxamic acid derivatives as bromodomain-containing protein 4/histone deacetylase dual inhibitors induce autophagic cell death in colorectal carcinoma cellsJ. Med. Chem.63(7)3678-3700(2020)

MMRi62 (7-[(2,3-dichlorophenyl)-(pyridin-2-ylamino)methyl]quinolin-8-ol), a ferroptosis inducer targeting MDM2-MDM4 (negative regulators of tumor suppressor p53). MMRi62 shows a P53-independent pro-apoptotic activity against pancreatic ductal adenocarcinoma (PDAC) cells and induce autophagy. MMRi62 inducesferroptosis, resulting in a increase of reactive oxygen and lysosomal degradation of ferritin heavy chain (FTH1). MMRi62 also leads to proteasomal degradation of mutant p53, also inhibits orthotopic xenograft PDAC mouse model in vivo with high frequency mutation characteristics of KRAS and TP53.12.

SB02024 is a VPS34 inhibitor. SB02024 activates cGAS-STING signaling and sensitizes tumors to STING agonist. SB02024 blocked autophagy in vitro and reduced xenograft growth of two breast cancer cell lines, MDA-MB-231 and MCF-7, in vivo. Vps34 inhibitor significantly potentiated cytotoxicity of Sunitinib and Erlotinib in MCF-7 and MDA-MB-231 in vitro in monolayer cultures and when grown as multicellular spheroids. Our data suggests that inhibition of autophagy significantly improves sensitivity to Sunitinib and Erlotinib and that Vps34 is a promising therapeutic target for combination strategies in breast cancer.

Clionamine B, an aminosteroid derived from the sponge Cliona celata, significantly enhances autophagy in human breast cancer MCF-7 cells [1].

Indium (III) thiosemicarbazone 5b is an anticancer compound demonstrating cytotoxicity against various cancer cell lines including A549, MCF-7 breast, cisplatin-resistant MCF-7/DDP breast, and Hl 7702 liver cancer cells, with IC50 values of 2.41, 1.97, 2.11, and 8.95 µM, respectively. It effectively lowers PI3K, Akt, mTOR, P-gp, and GSH levels in MCF-7/DDP cells. In vivo studies show that at a dosage of 2.5 µmol/kg, indium (III) thiosemicarbazone 5b significantly reduces tumor weight and volume in MCF-7/DDP mouse xenograft models. Furthermore, liposomes formulated with this compound promote apoptosis and pro-death autophagy in MCF-7/DDP cells, alongside notable reductions in tumor volume and weight, showcasing its potential as a therapeutic agent in cancer treatment.

ABO acts as an annexin A7 modulator, specifically binding to Thr286 to inhibit its phosphorylation on threonine (not on serine or tyrosine) residues within human umbilical vein endothelial cells (HUVECs). This compound furthers the annexin A7 interaction with the EF-hand protein GCA, leading to reduced GCA phosphorylation, lowered intracellular calcium levels, and enhanced autophagy in COS-7 cells. Moreover, ABO lessens phosphorylation of the microtubule-associated protein 1 light chain (LC3) in HUVECs and impedes the upregulation of phosphatidylcholine-specific phospholipase C (PC-PLC) due to oxidized low-density lipoprotein in vascular endothelial cells (VECs). In animal models, specifically apoE-/- mice on a Western diet, administration of ABO (50 or 100 mg/kg per day) has been shown to decrease PC-PLC expression, promote autophagy, and reduce apoptosis, lipid accumulation, and the extent of atherosclerotic plaques in the aortic endothelium.

7-Methylsulfinylheptyl isothiocyanate acts as an activator of the MAPK signaling pathway, regulating down the proteins related to melanogenesis and inhibiting melanin synthesis in B16-F1 cells. Additionally, this compound induces autophagy (autophagy) and serves as an inducer for phase II enzymes (phase II enzyme), providing chemoprotective effects against carcinogens. 7-Methylsulfinylheptyl isothiocyanate is also utilized as a whitening and anti-inflammatory component in cosmetics.

Z-VAD is an irreversible pan-caspase inhibitor capable of suppressing multiple caspases including caspase-3, -6, -7, -8, and -9. Z-VAD induces autophagy and necrosis in tumour cells, delays tumour growth, exhibits anti-angiogenic activity, and enhances the sensitivity of breast and lung cancer cells to radiotherapy.

Chloroquine-d5 is a deuterated compound of Chloroquine. Chloroquine has a CAS number of 54-05-7. Chloroquine is an autophagy and toll-like receptors (TLRs) inhibitor. Chloroquine is an antimalarial and anti-inflammatory agent widely used to treat malaria and rheumatoid arthritis. Chloroquine is highly effective in the control of SARS-CoV-2 (COVID-19) infection in vitro with EC50 of 1.13 μM.

AVE 0991, a nonpeptide analog of angiotensin-(1-7) [Ang-(1-7)], is an orally active Mas agonist with inhibitory effects on [125I]-Ang-(1-7) binding to bovine aortic endothelial cell membranes, and inhibits astrocyte-mediated neuroinflammation in Alzheimer's disease by enhancing autophagy.