Xanthurenic acid

Xanthurenic acid^[1]
Names
	Preferred IUPAC name 4,8-Dihydroxyquinoline-2-carboxylic acid
	Other names Xanthuric acid; Xanthurenate; 8-Hydroxykynurenic acid; 4,8-Dihydroxyquinaldic acid
Identifiers
CAS Number	59-00-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:10072 ;
ChemSpider	5497 ;
ECHA InfoCard	100.000.373
EC Number	200-410-1;
KEGG	C02470 ;
PubChem CID	5699;
UNII	58LAB1BG8J ;
CompTox Dashboard (EPA)	DTXSID90207728 ;
	InChI InChI=1S/C10H7NO4/c12-7-3-1-2-5-8(13)4-6(10(14)15)11-9(5)7/h1-4,12H,(H,11,13)(H,14,15) Key: FBZONXHGGPHHIY-UHFFFAOYSA-N ; InChI=1/C10H7NO4/c12-7-3-1-2-5-8(13)4-6(10(14)15)11-9(5)7/h1-4,12H,(H,11,13)(H,14,15) Key: FBZONXHGGPHHIY-UHFFFAOYAE;
	SMILES OC2=CC(C(O)=O)=NC1=C(O)C=CC=C12;
Properties
Chemical formula	C10H7NO4
Molar mass	205.169 g·mol−1
Appearance	Yellow crystals
Melting point	286 °C (547 °F; 559 K)
Solubility in water	Insoluble
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Xanthurenic acid, or xanthurenate, is a metabolic intermediate that accumulates and is excreted by pyridoxine (vitamin B₆) deficient animals after the ingestion of tryptophan.^[1]^[2]

Xanthurenic acid is suspected to be an endogenous agonist for Group II metabotropic glutamate receptors in humans.^[3] It is also known to be a potent VGLUT inhibitor, thereby preventing the movement of glutamate from the cytoplasm into synaptic vesicles, an action that it mediates via competitive blockade of vesicular glutamate transporters (K_i = 0.19 mM).^[4]

In 2015^[update] researchers reported a marked reduction of xanthurenic acid levels in the serum of patients with schizophrenia.^[5] A recent meta-analysis showed that blood xanthurenic acid levels are lower in individuals suffering from bipolar disorder as well.^[6]

Xanthurenic acid has also been shown to induce gametogenesis of Plasmodium falciparum, the parasite that causes malaria.^[7]^[8] It is found in the gut of the Anopheles mosquito.

References

^ ^a ^b Merck Index, 11th Edition, 9977.
^ Xanthurenic acid at Sigma-Aldrich
^ Copeland, C. S.; Neale, S. A.; Salt, T. E. (2013). "Actions of Xanthurenic Acid, a putative endogenous Group II metabotropic glutamate receptor agonist, on sensory transmission in the thalamus". Neuropharmacology. 66: 133–142. doi:10.1016/j.neuropharm.2012.03.009. PMID 22491023. S2CID 37921378.
^ Bartlett RD, Esslinger CS, Thompson CM, Bridges RJ (1998). "Substituted quinolines as inhibitors of L-glutamate transport into synaptic vesicles". Neuropharmacology. 37 (7): 839–46. doi:10.1016/s0028-3908(98)00080-x. PMID 9776380. S2CID 39853026.
^ Fazio, F.; Lionetto, L.; Curto, M. (2015). "Xanthurenic Acid Activates mGlu2/3 Metabotropic Glutamate Receptors and is a Potential Trait Marker for Schizophrenia". Scientific Reports. 5: 17799. Bibcode:2015NatSR...517799F. doi:10.1038/srep17799. PMC 4672300. PMID 26643205.
^ Bartoli, F; Misiak, B; Callovini, T; Cavaleri, D; Cioni, RM; Crocamo, C; Savitz, JB; Carrà, G (19 October 2020). "The kynurenine pathway in bipolar disorder: a meta-analysis on the peripheral blood levels of tryptophan and related metabolites". Molecular Psychiatry. 26 (7): 3419–3429. doi:10.1038/s41380-020-00913-1. PMID 33077852. S2CID 224314102.
^ Billker, O; Lindo, V; Panico, M; Etienne, AE; Paxton, T; Dell, A; Rogers, M; Sinden, RE; Morris, HR (March 19, 1998). "Identification of xanthurenic acid as the putative inducer of malaria development in the mosquito". Nature. 392 (6673): 289–292. Bibcode:1998Natur.392..289B. doi:10.1038/32667. PMID 9521324. S2CID 2584314.
^ Garcia, GE; Wirtz, RA; Barr, JR; Woolfitt, A; Rosenberg, R (May 15, 1998). "Xanthurenic acid induces gametogenesis in Plasmodium, the malaria parasite". The Journal of Biological Chemistry. 273 (20): 12003–5. doi:10.1074/jbc.273.20.12003. PMID 9575140.

[Merck-1] Merck Index, 11th Edition, 9977.

[2] Xanthurenic acid at Sigma-Aldrich

[3] Copeland, C. S.; Neale, S. A.; Salt, T. E. (2013). "Actions of Xanthurenic Acid, a putative endogenous Group II metabotropic glutamate receptor agonist, on sensory transmission in the thalamus". Neuropharmacology. 66: 133–142. doi:10.1016/j.neuropharm.2012.03.009. PMID 22491023. S2CID 37921378.

[pmid9776380-4] Bartlett RD, Esslinger CS, Thompson CM, Bridges RJ (1998). "Substituted quinolines as inhibitors of L-glutamate transport into synaptic vesicles". Neuropharmacology. 37 (7): 839–46. doi:10.1016/s0028-3908(98)00080-x. PMID 9776380. S2CID 39853026.

[5] Fazio, F.; Lionetto, L.; Curto, M. (2015). "Xanthurenic Acid Activates mGlu2/3 Metabotropic Glutamate Receptors and is a Potential Trait Marker for Schizophrenia". Scientific Reports. 5: 17799. Bibcode:2015NatSR...517799F. doi:10.1038/srep17799. PMC 4672300. PMID 26643205.

[“Bartoli”-6] Bartoli, F; Misiak, B; Callovini, T; Cavaleri, D; Cioni, RM; Crocamo, C; Savitz, JB; Carrà, G (19 October 2020). "The kynurenine pathway in bipolar disorder: a meta-analysis on the peripheral blood levels of tryptophan and related metabolites". Molecular Psychiatry. 26 (7): 3419–3429. doi:10.1038/s41380-020-00913-1. PMID 33077852. S2CID 224314102.

[billker-7] Billker, O; Lindo, V; Panico, M; Etienne, AE; Paxton, T; Dell, A; Rogers, M; Sinden, RE; Morris, HR (March 19, 1998). "Identification of xanthurenic acid as the putative inducer of malaria development in the mosquito". Nature. 392 (6673): 289–292. Bibcode:1998Natur.392..289B. doi:10.1038/32667. PMID 9521324. S2CID 2584314.

[pmid9575140-8] Garcia, GE; Wirtz, RA; Barr, JR; Woolfitt, A; Rosenberg, R (May 15, 1998). "Xanthurenic acid induces gametogenesis in Plasmodium, the malaria parasite". The Journal of Biological Chemistry. 273 (20): 12003–5. doi:10.1074/jbc.273.20.12003. PMID 9575140.

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See also

References