mitochondria dysfunction

Propafenone (Propafenonum) 是钠通道阻滞剂，它对 β 受体具有高亲和力 (IC50=32 nM)。它能够阻断瞬时外向钾电流 (Ito) (IC50: 4.9 nM) 和持续延迟整流器K+电流 (Isus) (IC50: 8.6 nM) ，具有抗心律失常的作用。它能够诱导线粒体功能障碍及诱导细胞凋亡，从而抑制食管癌增殖。

MitoTEMPOL是一种线粒体靶向抗氧化剂，可逆转败血症导致的线粒体功能降低、蛋白水解途径的激活以及肌球蛋白重链含量的减少，从而预防隔膜功能障碍，还能够消除细胞因子增加肌肉细胞超氧化物产生和减小细胞大小的作用。

Mito-apocynin (C11)是一种线粒体靶向抗氧化剂，通过靶向和中和细胞呼吸过程中产生的活性氧（ROS）发挥作用。三苯基溴化鏻已被发现能有效预防线粒体功能障碍，线粒体功能障碍是衰老过程和各种疾病的主要原因。它具有抗炎、抗凋亡和抗氧化活性。

N-Desbutyl dronedarone is an active metabolite of the antiarrhythmic agent dronedarone .1,2,3It is formed from dronedarone by cytochrome P450s (CYPs) and monoamine oxidase (MAO) in human hepatocyte preparations.4N-Desbutyl dronedarone inhibits the binding of 3,3’,5-triiodo-L-thyronine to the thyroid hormone receptors TRα1and TRβ1(IC50s = 59 and 280 μM for the chicken and human receptors, respectively).1It inhibits CYP2J2-mediated formation of 14,15-EET from arachidonic acid and soluble epoxide hydrolase-mediated formation of 14,15-DHET from 14,15-EET (IC50s = 1.59 and 2.73 μM, respectively, in cell-free assays).2N-Desbutyl dronedarone decreases intracellular ATP levels in H9c2 rat cardiomyocytes (IC50= 1.07 μM) and inhibits mitochondrial complex I, also known as NADH dehydrogenase, and mitochondrial complex II, also known as succinate dehydrogenase, activities in isolated rat heart mitochondria (IC50s = 11.94 and 24.54 μM, respectively).3 1.Van Beeren, H.C., Jong, W.M.C., Kaptein, E., et al.Dronerarone acts as a selective inhibitor of 3,5,3’-triiodothyronine binding to thyroid hormone receptor-α1: in vitro and in vivo evidenceEndocrinology144(2)552-558(2003) 2.Karkhanis, A., Tram, N.D.T., and Chan, E.C.Y.Effects of dronedarone, amiodarone and their active metabolites on sequential metabolism of arachidonic acid to epoxyeicosatrienoic and dihydroxyeicosatrienoic acidsBiochem. Pharmacol.146188-198(2017) 3.Karkhanis, A., Leow, J.W.H., Hagen, T., et al.Dronedarone-induced cardiac mitochondrial dysfunction and its mitigation by epoxyeicosatrienoic acidsToxicol. Sci.163(1)79-91(2018) 4.Klieber, S., Arabeyre-Fabre, C., Moliner, P., et al.Identification of metabolic pathways and enzyme systems involved in the in vitro human hepatic metabolism of dronedarone, a potent new oral antiarrhythmic drugPharmacol. Res. Perspec.2(3)e00044(2014)

HT-2 toxin-13C22is intended for use as an internal standard for the quantification of HT-2 toxin by GC- or LC-MS. HT-2 toxin is a type A trichothecene mycotoxin and an active, deacetylated metabolite of the trichothecene mycotoxin T-2 toxin .1,2Like T-2 toxin, HT-2 toxin inhibits protein synthesis and cell proliferation in plants.2HT-2 toxin also reduces viability of HepG2, A549, HEp-2, Caco-2, A-204, U937, Jurkat, and RPMI-8226 cancer cells with IC50values ranging from 3.1 to 23 ng ml and human umbilical vein endothelial cells with an IC50value of 56.4 ng ml.1It induces oxidative stress, DNA damage, and autophagy in, as well as halts the development of, cultured mouse embryos when used at a concentration of 10 nM.3HT-2 toxin has been found in cereal grains and food products.4,5 1.Nielsen, C., Casteel, M., Didier, A., et al.Trichothecene-induced cytotoxicity on human cell linesMycotoxin Res.25(2)77-84(2009) 2.Nathanail, A.V., Varga, E., Meng-Reiterer, J., et al.Metabolism of the fusarium mycotoxins T-2 toxin and HT-2 toxin in wheatJ. Agric. Food Chem.63(35)7862-7872(2015) 3.Zhang, L., Li, L., Xu, J., et al.HT-2 toxin exposure induces mitochondria dysfunction and DNA damage during mouse early embryo developmentReprod. Toxicol.85104-109(2019) 4.Langseth, W., and Rundberget, T.The occurrence of HT-2 toxin and other trichothecenes in Norwegian cerealsMycopathologia147(3)157-165(1999) 5.Al-Taher, F., Cappozzo, J., Zweigenbaum, J., et al.Detection and quantitation of mycotoxins in infant cereals in the U.S. market by LC-MS MS using a stable isotope dilution assayFood Control72(Part A)27-35(2017)

AZT triphosphate TFA (3'-Azido-3'-deoxythymidine-5'-triphosphate TFA) is a active triphosphate metabolite of Zidovudine (AZT). AZT triphosphate TFA exhibits antiretroviral activity and inhibits replication of HIV. AZT triphosphate TFA also inhibits the DNA polymerase of HBV. AZT triphosphate TFA activates the mitochondria-mediated apoptosis pathway[1][2][3]. Treatment with 100 μM Zidovudine (AZT) for 48h disrupts the mitochondrial tubular network via accumulation of AZT triphosphate (AZT-TP) in H9c2 cells. AZT triphosphate accumulation causes downregulation of Opa1 and upregulation of Drp1. AZT triphosphate causes mitochondrial dysfunction, increases the production of cytotoxic reactive oxygen species (ROS), and impairs the balance of the mitochondrial quality control system in H9c2 cell model established from rat embryonic myoblasts[1]. [1]. Ryosuke Nomura, et al. Azidothymidine-triphosphate Impairs Mitochondrial Dynamics by Disrupting the Quality Control System. Redox Biol. 2017 Oct;13:407-417. [2]. Takeya Sato, et al. Engineered Human tmpk/AZT as a Novel Enzyme/Prodrug Axis for Suicide Gene Therapy. Mol Ther. 2007 May;15(5):962-70. [3]. K Y Hostetler, et al. Enhanced Oral Absorption and Antiviral Activity of 1-O-octadecyl-sn-glycero-3-phospho-acyclovir and Related Compounds in Hepatitis B Virus Infection, in Vitro. Biochem Pharmacol. 1997 Jun 15;53(12):1815-22.

Ru360, an oxygen-bridged dinuclear ruthenium amine complex, is a selective mitochondrial calcium uptake inhibitor. Ru360 potently inhibits Ca2+ uptake into mitochondria with an IC50 of 0.184 nM. Ru360 binds to mitochondria with high affinity (Kd of 0.34 nM). Ru360 has antiarrhythmic and cardioprotective effects[1][2]. Ru360 permeates slowly into the cell, and specifically inhibits mitochondrial calcium uptake in intact cardiomyocytes and in isolated heart. 1 μm Ru360 is taken up by myocardial cells and accumulated in the cytosol in a biphasic manner[1]. During pelleting hypoxia, Ru360 (10 µM) significantly improves cell viability in wild type cardiomyocytes[3]. Ru360 (15-50 nmol/kg) treatment abolishes the incidence of arrhythmias and haemodynamic dysfunction elicited by reperfusion in a whole rat model. Ru360 administration partially inhibits calcium uptake, preventing mitochondria from depolarization by the opening of the mitochondrial permeability transition pore (mPTP)[1]. [1]. G de J García-Rivas, et al. Ru360, a Specific Mitochondrial Calcium Uptake Inhibitor, Improves Cardiac Post-Ischaemic Functional Recovery in Rats in Vivo. Br J Pharmacol. 2006 Dec;149(7):829-37. [2]. M A Matlib, et al. Oxygen-bridged Dinuclear Ruthenium Amine Complex Specifically Inhibits Ca2+ Uptake Into Mitochondria in Vitro and in Situ in Single Cardiac Myocytes. J Biol Chem. 1998 Apr 24;273(17):10223-31. [3]. Lukas J Motloch, et al. UCP2 Modulates Cardioprotective Effects of Ru360 in Isolated Cardiomyocytes During Ischemia. Pharmaceuticals (Basel). 2015 Aug 4;8(3):474-82.

C22 dihydro 1-Deoxyceramide (m18:0 22:0) is a very long-chain atypical ceramide containing a 1-deoxysphinganine backbone. 1-Deoxysphingolipids are formed when serine palmitoyltransferase condenses palmitoyl-CoA with alanine instead of serine during sphingolipid synthesis.1,2 C22 dihydro 1-Deoxyceramide (m18:0 22:0) has been found in mouse embryonic fibroblasts (MEFs) following application of 1-deoxysphinganine alkyne or 1-deoxysphinganine-d3.3 It has also been found as the most prevalent dihydro deoxyceramide species in mouse brain, spinal cord, and sciatic nerve at one, three, and six months of age.4 |1. Steiner, R., Saied, E.M., Othman, A., et al. Elucidating the chemical structure of native 1-deoxysphingosine. J. Lipid Res. 57(7), 1194-1203 (2016).|2. Alecu, I., Othman, A., Penno, A., et al. Cytotoxic 1-deoxysphingolipids are metabolized by a cytochrome P450-dependent pathway. J. Lipid Res. 58(1), 60-71 (2017).|3. Alecu, I., Tedeschi, A., Behler, N., et al. Localization of 1-deoxysphingolipids to mitochondria induces mitochondrial dysfunction. J. Lipid. Res. 58(1), 42-59 (2017).|4. Schwartz, N.U., Mileva, I., Gurevich, M., et al. Quantifying 1-deoxydihydroceramides and 1-deoxyceramides in mouse nervous system tissue. Prostaglandins Other Lipid Mediat. 141, 40-48 (2019).

C24 dihydro 1-Deoxyceramide (m18:0 24:0) is a very long-chain atypical ceramide containing a 1-deoxysphinganine backbone. 1-Deoxysphingolipids are formed when serine palmitoyltransferase condenses palmitoyl-CoA with alanine instead of serine during sphingolipid synthesis.1,2 C24 dihydro 1-Deoxyceramide (m18:0 24:0) has been found in mouse embryonic fibroblasts (MEFs) following application of 1-deoxysphinganine alkyne or 1-deoxysphinganine-d3.3 It has also been found in mouse brain, spinal cord, and sciatic nerve at one, three, and six months of age.4 |1. Steiner, R., Saied, E.M., Othman, A., et al. Elucidating the chemical structure of native 1-deoxysphingosine. J. Lipid Res. 57(7), 1194-1203 (2016).|2. Alecu, I., Othman, A., Penno, A., et al. Cytotoxic 1-deoxysphingolipids are metabolized by a cytochrome P450-dependent pathway. J. Lipid Res. 58(1), 60-71 (2017).|3. Alecu, I., Tedeschi, A., Behler, N., et al. Localization of 1-deoxysphingolipids to mitochondria induces mitochondrial dysfunction. J. Lipid. Res. 58(1), 42-59 (2017).|4. Schwartz, N.U., Mileva, I., Gurevich, M., et al. Quantifying 1-deoxydihydroceramides and 1-deoxyceramides in mouse nervous system tissue. Prostaglandins Other Lipid Mediat. 141, 40-48 (2019).

TSPO Ligand-Linker Conjugates 1，包含TSPO配体和连接子，用于合成靶向线粒体的AUTAC。该AUTAC能与OMM上TSPO结合，通过mitophagy降解受损线粒体和蛋白质，提升线粒体活性。适用于研究线粒体功能紊乱，包括神经退行性疾病、癌症和糖尿病。

fac-[Re(CO)3(L3)(H2O)][NO3]（简称compound 3），是一种与线粒体功能障碍相关的抗前列腺癌剂。这种铼(I)三羰基水配合物对前列腺癌细胞系(PC-3)表现出显著的细胞毒性，其IC50值为0.32 μM。研究表明，fac-[Re(CO)3(L3)(H2O)][NO3]主要在线粒体中积聚，能够降低PC-3细胞的ATP生成，进而触发细胞副凋亡(paraptosis)机制，而不通过引发坏死、凋亡或自噬途径作用。

Ir-CA 是一种抗肿瘤剂，可在线粒体中积聚并诱导其功能障碍，诱导细胞凋亡 (Apoptosis) 和自噬 (Autophagy)，启动线粒体自噬和细胞周期停滞，以杀死顺铂耐药的 A549R 细胞，并通过抑制 MMP-2 MMP-9 有效抑制肿瘤转移。

Palmitoleoyl-CoAlithium 是 Palmitoleoyl-CoA 的一种锂盐状态。它能够在糖代谢过程中被激活并转运至线粒体以进行 β-氧化。Palmitoleoyl-CoA lithium 还具有诱导心脏线粒体膜通透性转变的功能，这一作用可能引起线粒体功能障碍。此外，这种化合物通过调节 AMPK β1-异构体的构象变化来控制代谢过程。

SHLP2（Small humanin-like peptide 2）是一种由线粒体DNA编码的小分子肽，属于线粒体衍生肽类。该肽具有调控细胞凋亡（apoptosis）的活性，并可抑制细胞死亡。SHLP2对于研究线粒体功能障碍相关的疾病以及抗衰老疾病具有重要意义。

Cereulide 是一种由蜡样芽孢杆菌产生的毒素肽。它可诱导细胞凋亡 (Apoptosis)，并作用于线粒体，导致不同器官[如肝脏、胰腺、脑、肠道等]和身体系统[如免疫系统和神经系统]的功能障碍。

Palmitoleoyl-CoA 能被激活并转运至线粒体，以进行代谢过程，特别是 β-氧化。它能够诱发心脏线粒体膜的通透性转变，导致线粒体功能障碍。通过变构调控 AMPKβ1-异构体，Palmitoleoyl-CoA 还能调节代谢。