Biomaterial Database

Synergistic action of cord factor and mycobacterial sulfatides on mitochondria. 1974

M Kato, and M B Goren

The mechanism of a synergistic toxicity of 6,6'-dimycoloyl-alpha,alpha'-d-trehalose (cord factor) and 2,3,6,6'-tetraacyl-alpha,alpha'-d-trehalose 2'-sulfate (sulfolipid I) for mice was studied. Sulfolipid I was entirely nontoxic, but it markedly accelerated the lethal toxicity of cord factor for mice. In vivo, sulfolipid I affected neither respiration nor accompanying phosphorylation of mouse liver mitochondria, whereas in vitro, it induced a swelling and disruption of mitochondrial membranes and strongly inhibited mitochondrial oxidative phosphorylation. The effect of sulfolipid I on mitochondrial structure and function in vitro was neutralized by bovine serum albumin and various animal sera, whereas that of cord factor and cord factor plus sulfolipid I was not prevented by bovine serum albumin. The simultaneous injection of cord factor and sulfolipid I caused an intensive fragmentation of mitochondria and a marked decrease in respiratory and phosphorylative activity in mitochondria. These data indicate that sulfolipid I can achieve an effective attack on mitochondria in combination with cord factor in vivo and induces heavier damage in mitochondrial structure and function than that produced by cord factor alone.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008930	Mitochondria, Liver	Mitochondria in hepatocytes. As in all mitochondria, there are an outer membrane and an inner membrane, together creating two separate mitochondrial compartments: the internal matrix space and a much narrower intermembrane space. In the liver mitochondrion, an estimated 67% of the total mitochondrial proteins is located in the matrix. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p343-4)	Liver Mitochondria,Liver Mitochondrion,Mitochondrion, Liver
D008933	Mitochondrial Swelling	An increase in MITOCHONDRIAL VOLUME due to an influx of fluid; it occurs in hypotonic solutions due to osmotic pressure and in isotonic solutions as a result of altered permeability of the membranes of respiring mitochondria.	Giant Mitochondria,Megamitochondria,Mitochondrial Hypertrophy,Giant Mitochondrias,Hypertrophy, Mitochondrial,Megamitochondrias,Mitochondria, Giant,Mitochondrial Hypertrophies,Swelling, Mitochondrial
D009169	Mycobacterium tuberculosis	A species of gram-positive, aerobic bacteria that produces TUBERCULOSIS in humans, other primates, CATTLE; DOGS; and some other animals which have contact with humans. Growth tends to be in serpentine, cordlike masses in which the bacilli show a parallel orientation.	Mycobacterium tuberculosis H37Rv
D010085	Oxidative Phosphorylation	Electron transfer through the cytochrome system liberating free energy which is transformed into high-energy phosphate bonds.	Phosphorylation, Oxidative,Oxidative Phosphorylations,Phosphorylations, Oxidative
D004187	Disaccharides	Oligosaccharides containing two monosaccharide units linked by a glycosidic bond.	Disaccharide
D004305	Dose-Response Relationship, Drug	The relationship between the dose of an administered drug and the response of the organism to the drug.	Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D004357	Drug Synergism	The action of a drug in promoting or enhancing the effectiveness of another drug.	Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D006017	Glycolipids	Any compound containing one or more monosaccharide residues bound by a glycosidic linkage to a hydrophobic moiety such as an acylglycerol (see GLYCERIDES), a sphingoid, a ceramide (CERAMIDES) (N-acylsphingoid) or a prenyl phosphate. (From IUPAC's webpage)	Glycolipid
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia