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| Name | Colchicine | ||||||||||||||||||||||||||||||||||||||||||
| Accession Number | DB01394 | ||||||||||||||||||||||||||||||||||||||||||
| Type | small molecule | ||||||||||||||||||||||||||||||||||||||||||
| Groups | approved | ||||||||||||||||||||||||||||||||||||||||||
| Description | A major alkaloid from Colchicum autumnale L. and found also in other Colchicum species. Its primary therapeutic use is in the treatment of gout, but it has been used also in the therapy of familial Mediterranean fever (periodic disease). [PubChem] |
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| Structure |
Download: MOL | SDF | SMILES | InChI Display: 2D Structure | 3D Structure |
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| Salts | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| CAS number | 64-86-8 | ||||||||||||||||||||||||||||||||||||||||||
| Weight |
Average: 399.437 Monoisotopic: 399.168187537 |
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| Chemical Formula | C22H25NO6 | ||||||||||||||||||||||||||||||||||||||||||
| InChI Key | InChIKey=IAKHMKGGTNLKSZ-UHFFFAOYSA-N | ||||||||||||||||||||||||||||||||||||||||||
| InChI |
InChI=1S/C22H25NO6/c1-12(24)23-16-8-6-13-10-19(27-3)21(28-4)22(29-5)20(13)14-7-9-18(26-2)17(25)11-15(14)16/h7,9-11,16H,6,8H2,1-5H3,(H,23,24)
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| IUPAC Name |
N-{3,4,5,14-tetramethoxy-13-oxotricyclo[9.5.0.0^{2,7}]hexadeca-1(16),2(7),3,5,11,14-hexaen-10-yl}acetamide
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| SMILES |
COC1=CC2=C(C(OC)=C1OC)C1=CC=C(OC)C(=O)C=C1C(CC2)NC(C)=O
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| Mass Spec | show (2.96 KB) | ||||||||||||||||||||||||||||||||||||||||||
| Taxonomy | |||||||||||||||||||||||||||||||||||||||||||
| Kingdom | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Classes | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Substructures | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| Pharmacology | |||||||||||||||||||||||||||||||||||||||||||
| Indication | For treatment and relief of pain in attacks of acute gouty arthritis. | ||||||||||||||||||||||||||||||||||||||||||
| Pharmacodynamics | Colchicine is a highly poisonous alkaloid, originally extracted from plants of the genus Colchicum (Autumn crocus, also known as the "Meadow saffron"). Originally used to treat rheumatic complaints and especially gout, it was also prescribed for its cathartic and emetic effects. Its present medicinal use is mainly in the treatment of gout; as well, it is being investigated for its potential use as an anti-cancer drug. It can also be used as initial treatment for pericarditis and preventing recurrences of the condition. | ||||||||||||||||||||||||||||||||||||||||||
| Mechanism of action | The precise mechanism of action has not been completely established. In patients with gout, colchicine apparently interrupts the cycle of monosodium urate crystal deposition in joint tissues and the resultant inflammatory response that initiates and sustains an acute attack. Colchicine decreases leukocyte chemotaxis and phagocytosis and inhibits the formation and release of a chemotactic glycoprotein that is produced during phagocytosis of urate crystals. Colchicine also inhibits urate crystal deposition, which is enhanced by a low pH in the tissues, probably by inhibiting oxidation of glucose and subsequent lactic acid production in leukocytes. Colchicine has no analgesic or antihyperuricemic activity. Colchicine inhibits microtubule assembly in various cells, including leukocytes, probably by binding to and interfering with polymerization of the microtubule subunit tubulin. Although some studies have found that this action probably does not contribute significantly to colchicine's antigout action, a recent in vitro study has shown that it may be at least partially involved. | ||||||||||||||||||||||||||||||||||||||||||
| Absorption | Colchicine is rapidly absorbed after oral administration, probably from the jejunum and ileum. However, the rate and extent of absorption are variable, depending on the tablet dissolution rate; variability in gastric emptying, intestinal motility, and pH at the absorption site; and the extent to which colchicine is bound to microtubules in gastrointestinal mucosal cells. | ||||||||||||||||||||||||||||||||||||||||||
| Volume of distribution |
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| Protein binding | Low to moderate (30 to 50%). | ||||||||||||||||||||||||||||||||||||||||||
| Metabolism | Probably hepatic. Although colchicine metabolites have not been identified in humans, metabolism by mammalian hepatic microsomes has been demonstrated in vitro. | ||||||||||||||||||||||||||||||||||||||||||
| Route of elimination | In healthy volunteers (n=12) 40 – 65% of 1 mg orally administered colchicine was recovered unchanged in urine. Enterohepatic recirculation and biliary excretion are also postulated to play a role in colchicine elimination. | ||||||||||||||||||||||||||||||||||||||||||
| Half life | Elimination half-life is approximately 1 hour in healthy subjects, although a study with an extended sampling time reported mean terminal elimination half-life values of approximately 9 to 10.5 hours. Other studies have reported half-life values of approximately 2 hours in patients with alcoholic cirrhosis and approximately 2.5 hours in patients with familial Mediterranean fever. | ||||||||||||||||||||||||||||||||||||||||||
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| Toxicity | The onset of toxic effects is usually delayed for several hours or more after the ingestion of an acute overdose. Nausea, vomiting, abdominal pain, and diarrhea occur first. The diarrhea may be bloody due to hemorrhagic gastroenteritis. Burning sensations of the throat, stomach, and skin may be prominent symptoms. Extensive vascular damage may result in shock. Kidney damage, evidenced by hematuria and oliguria, may occur. Muscular weakness may be marked, and ascending paralysis of the central nervous system may develop; the patient usually remains conscious. Delirium and convulsions may occur. Death due to respiratory arrest may result. Although death from the ingestion of as little as 7 mg has been reported, much larger doses have been survived . | ||||||||||||||||||||||||||||||||||||||||||
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| Pathways | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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DrugBank does not sell nor buy drugs. Pricing information is supplied for informational
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| Properties | |||||||||||||||||||||||||||||||||||||||||||
| State | solid | ||||||||||||||||||||||||||||||||||||||||||
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| Synthesis Reference | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| General Reference | Not Available | ||||||||||||||||||||||||||||||||||||||||||
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| PDB Entries | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| FDA label | Not Available | ||||||||||||||||||||||||||||||||||||||||||
| MSDS | show (74.9 KB) | ||||||||||||||||||||||||||||||||||||||||||
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| Targets |
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Pharmacological action: yes
Actions: inhibitor Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha-chain Organism class: humanUniProt ID: Q9H4B7 ![]() Gene: TUBB1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Pharmacological action: yes
Actions: inhibitor Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha-chain Organism class: humanUniProt ID: P07437 ![]() Gene: TUBB ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Enzymes |
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Actions: substrate, inhibitor, inducer
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4- hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. The enzyme also hydroxylates etoposide UniProt ID: P08684![]() Gene: CYP3A4 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: inhibitor
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics UniProt ID: P20813![]() Gene: CYP2B6 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: inhibitor, inducer
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. In the epoxidation of arachidonic acid it generates only 14,15- and 11,12-cis-epoxyeicosatrienoic acids. It is the principal enzyme responsible for the metabolism the anti- cancer drug paclitaxel (taxol) UniProt ID: P10632![]() Gene: CYP2C8 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: inhibitor, inducer
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S- warfarin, diclofenac, phenytoin, tolbutamide and losartan UniProt ID: P11712![]() Gene: CYP2C9 Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
Actions: inducer
Metabolizes several precarcinogens, drugs, and solvents to reactive metabolites. Inactivates a number of drugs and xenobiotics and also bioactivates many xenobiotic substrates to their hepatotoxic or carcinogenic forms UniProt ID: P05181![]() Gene: CYP2E1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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| Transporters |
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1. Multidrug resistance protein 3 Actions: inducerMediates ATP-dependent export of organic anions and drugs from the cytoplasm. Hydrolyzes ATP with low efficiency. Human MDR3 is not capable of conferring drug resistance. Mediates the translocation of phosphatidylcholine across the canalicular membrane of the hepatocyte UniProt ID: P21439![]() Gene: ABCB4 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
2. Solute carrier family 22 member 3 Actions: inhibitorMediates potential-dependent transport of a variety of organic cations. May play a significant role in the disposition of cationic neurotoxins and neurotransmitters in the brain UniProt ID: O75751![]() Gene: SLC22A3 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
3. Multidrug resistance protein 1 Actions: substrate, inhibitorEnergy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells UniProt ID: P08183![]() Gene: ABCB1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
4. Multidrug resistance-associated protein 1 Actions: substrateMay participate directly in the active transport of drugs into subcellular organelles or influence drug distribution indirectly. Confers resistance to anticancer drugs. Transports LTC4. May protect milk against xenobiotics UniProt ID: P33527![]() Gene: ABCC1 ![]() Protein Sequence: FASTA Gene Sequence: FASTA SNPs: SNPJam Report ![]() References:
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