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Pathway Description
Quinagolide Mechanism of Action Action Pathway
Homo sapiens
Drug Action Pathway
Created: 2023-08-14
Last Updated: 2023-11-27
Newer dopamine receptor agonists such as quinagolide and Cabergoline are shown to effectively inhibit prolactin secretion with improved efficacy over Bromocriptine. These drugs are effective in patients who are intolerant or resistant to Bromocriptine. Quinagolide exists as a racemate and its relevant clinical activity is mediated predominantly by the (-) enantiomer. It is typically present in the hydrochloride salt form and is marketed as oral tablets. Quinagolide is a non-ergot-derived selective dopamine D2 receptor agonist used for the treatment of elevated levels of prolactin or hyperprolactinaemia. Quinagolide achieves long-lasting reduction in prolactin levels in a dose-proportional effect via selectively targeting D2 receptors as an agonist. It potently suppresses both basal and stimulated serum prolactin levels by exerting a strong inhibitory effect on the secretion of the anterior pituitary hormone prolactin. Prolactin secretion from the lactotroph cells present in the anterior pituitary gland is under tonic inhibitory control mediated by dopaminergic signalling via D2 receptors. Quinagolide selectively binds to D2 receptors expressed on the surface of lactotroph cells with high affinity which results in reduced adenylyl cyclase activity, reduced intracellular cyclic adenosine monophosphate and inhibited prolactin secretion. It also binds to D1 receptors but with low affinity and little clinical relevance.
References
Quinagolide Mechanism of Action Pathway References
Wishart DS, Feunang YD, Guo AC, Lo EJ, Marcu A, Grant JR, Sajed T, Johnson D, Li C, Sayeeda Z, Assempour N, Iynkkaran I, Liu Y, Maciejewski A, Gale N, Wilson A, Chin L, Cummings R, Le D, Pon A, Knox C, Wilson M: DrugBank 5.0: a major update to the DrugBank database for 2018. Nucleic Acids Res. 2018 Jan 4;46(D1):D1074-D1082. doi: 10.1093/nar/gkx1037.
Pubmed: 29126136
Al-Chalabi M, Bass AN, Alsalman I: Physiology, Prolactin.
Pubmed: 29939606
Liu X, Tang C, Wen G, Zhong C, Yang J, Zhu J, Ma C: The Mechanism and Pathways of Dopamine and Dopamine Agonists in Prolactinomas. Front Endocrinol (Lausanne). 2019 Jan 22;9:768. doi: 10.3389/fendo.2018.00768. eCollection 2018.
Pubmed: 30740089
Kaneda N, Kobayashi K, Ichinose H, Kishi F, Nakazawa A, Kurosawa Y, Fujita K, Nagatsu T: Isolation of a novel cDNA clone for human tyrosine hydroxylase: alternative RNA splicing produces four kinds of mRNA from a single gene. Biochem Biophys Res Commun. 1987 Aug 14;146(3):971-5. doi: 10.1016/0006-291x(87)90742-x.
Pubmed: 2887169
Grima B, Lamouroux A, Boni C, Julien JF, Javoy-Agid F, Mallet J: A single human gene encoding multiple tyrosine hydroxylases with different predicted functional characteristics. Nature. 1987 Apr 16-22;326(6114):707-11. doi: 10.1038/326707a0.
Pubmed: 2882428
Kobayashi K, Kaneda N, Ichinose H, Kishi F, Nakazawa A, Kurosawa Y, Fujita K, Nagatsu T: Isolation of a full-length cDNA clone encoding human tyrosine hydroxylase type 3. Nucleic Acids Res. 1987 Aug 25;15(16):6733. doi: 10.1093/nar/15.16.6733.
Pubmed: 2888085
Ichinose H, Kurosawa Y, Titani K, Fujita K, Nagatsu T: Isolation and characterization of a cDNA clone encoding human aromatic L-amino acid decarboxylase. Biochem Biophys Res Commun. 1989 Nov 15;164(3):1024-30. doi: 10.1016/0006-291x(89)91772-5.
Pubmed: 2590185
Scherer LJ, McPherson JD, Wasmuth JJ, Marsh JL: Human dopa decarboxylase: localization to human chromosome 7p11 and characterization of hepatic cDNAs. Genomics. 1992 Jun;13(2):469-71.
Pubmed: 1612608
Sumi-Ichinose C, Ichinose H, Takahashi E, Hori T, Nagatsu T: Molecular cloning of genomic DNA and chromosomal assignment of the gene for human aromatic L-amino acid decarboxylase, the enzyme for catecholamine and serotonin biosynthesis. Biochemistry. 1992 Mar 3;31(8):2229-38. doi: 10.1021/bi00123a004.
Pubmed: 1540578
Surratt CK, Persico AM, Yang XD, Edgar SR, Bird GS, Hawkins AL, Griffin CA, Li X, Jabs EW, Uhl GR: A human synaptic vesicle monoamine transporter cDNA predicts posttranslational modifications, reveals chromosome 10 gene localization and identifies TaqI RFLPs. FEBS Lett. 1993 Mar 8;318(3):325-30. doi: 10.1016/0014-5793(93)80539-7.
Pubmed: 8095030
Erickson JD, Eiden LE: Functional identification and molecular cloning of a human brain vesicle monoamine transporter. J Neurochem. 1993 Dec;61(6):2314-7. doi: 10.1111/j.1471-4159.1993.tb07476.x.
Pubmed: 8245983
Peter D, Finn JP, Klisak I, Liu Y, Kojis T, Heinzmann C, Roghani A, Sparkes RS, Edwards RH: Chromosomal localization of the human vesicular amine transporter genes. Genomics. 1993 Dec;18(3):720-3.
Pubmed: 7905859
Williams ME, Feldman DH, McCue AF, Brenner R, Velicelebi G, Ellis SB, Harpold MM: Structure and functional expression of alpha 1, alpha 2, and beta subunits of a novel human neuronal calcium channel subtype. Neuron. 1992 Jan;8(1):71-84. doi: 10.1016/0896-6273(92)90109-q.
Pubmed: 1309651
Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. doi: 10.1101/gr.2596504.
Pubmed: 15489334
Brust PF, Simerson S, McCue AF, Deal CR, Schoonmaker S, Williams ME, Velicelebi G, Johnson EC, Harpold MM, Ellis SB: Human neuronal voltage-dependent calcium channels: studies on subunit structure and role in channel assembly. Neuropharmacology. 1993 Nov;32(11):1089-102. doi: 10.1016/0028-3908(93)90004-m.
Pubmed: 8107964
Klugbauer N, Lacinova L, Marais E, Hobom M, Hofmann F: Molecular diversity of the calcium channel alpha2delta subunit. J Neurosci. 1999 Jan 15;19(2):684-91.
Pubmed: 9880589
Gao B, Sekido Y, Maximov A, Saad M, Forgacs E, Latif F, Wei MH, Lerman M, Lee JH, Perez-Reyes E, Bezprozvanny I, Minna JD: Functional properties of a new voltage-dependent calcium channel alpha(2)delta auxiliary subunit gene (CACNA2D2). J Biol Chem. 2000 Apr 21;275(16):12237-42. doi: 10.1074/jbc.275.16.12237.
Pubmed: 10766861
Hobom M, Dai S, Marais E, Lacinova L, Hofmann F, Klugbauer N: Neuronal distribution and functional characterization of the calcium channel alpha2delta-2 subunit. Eur J Neurosci. 2000 Apr;12(4):1217-26. doi: 10.1046/j.1460-9568.2000.01009.x.
Pubmed: 10762351
Williams ME, Brust PF, Feldman DH, Patthi S, Simerson S, Maroufi A, McCue AF, Velicelebi G, Ellis SB, Harpold MM: Structure and functional expression of an omega-conotoxin-sensitive human N-type calcium channel. Science. 1992 Jul 17;257(5068):389-95. doi: 10.1126/science.1321501.
Pubmed: 1321501
Humphray SJ, Oliver K, Hunt AR, Plumb RW, Loveland JE, Howe KL, Andrews TD, Searle S, Hunt SE, Scott CE, Jones MC, Ainscough R, Almeida JP, Ambrose KD, Ashwell RI, Babbage AK, Babbage S, Bagguley CL, Bailey J, Banerjee R, Barker DJ, Barlow KF, Bates K, Beasley H, Beasley O, Bird CP, Bray-Allen S, Brown AJ, Brown JY, Burford D, Burrill W, Burton J, Carder C, Carter NP, Chapman JC, Chen Y, Clarke G, Clark SY, Clee CM, Clegg S, Collier RE, Corby N, Crosier M, Cummings AT, Davies J, Dhami P, Dunn M, Dutta I, Dyer LW, Earthrowl ME, Faulkner L, Fleming CJ, Frankish A, Frankland JA, French L, Fricker DG, Garner P, Garnett J, Ghori J, Gilbert JG, Glison C, Grafham DV, Gribble S, Griffiths C, Griffiths-Jones S, Grocock R, Guy J, Hall RE, Hammond S, Harley JL, Harrison ES, Hart EA, Heath PD, Henderson CD, Hopkins BL, Howard PJ, Howden PJ, Huckle E, Johnson C, Johnson D, Joy AA, Kay M, Keenan S, Kershaw JK, Kimberley AM, King A, Knights A, Laird GK, Langford C, Lawlor S, Leongamornlert DA, Leversha M, Lloyd C, Lloyd DM, Lovell J, Martin S, Mashreghi-Mohammadi M, Matthews L, McLaren S, McLay KE, McMurray A, Milne S, Nickerson T, Nisbett J, Nordsiek G, Pearce AV, Peck AI, Porter KM, Pandian R, Pelan S, Phillimore B, Povey S, Ramsey Y, Rand V, Scharfe M, Sehra HK, Shownkeen R, Sims SK, Skuce CD, Smith M, Steward CA, Swarbreck D, Sycamore N, Tester J, Thorpe A, Tracey A, Tromans A, Thomas DW, Wall M, Wallis JM, West AP, Whitehead SL, Willey DL, Williams SA, Wilming L, Wray PW, Young L, Ashurst JL, Coulson A, Blocker H, Durbin R, Sulston JE, Hubbard T, Jackson MJ, Bentley DR, Beck S, Rogers J, Dunham I: DNA sequence and analysis of human chromosome 9. Nature. 2004 May 27;429(6990):369-74. doi: 10.1038/nature02465.
Pubmed: 15164053
Kim DS, Jung HH, Park SH, Chin H: Isolation and characterization of the 5'-upstream region of the human N-type calcium channel alpha1B subunit gene. Chromosomal localization and promoter analysis. J Biol Chem. 1997 Feb 21;272(8):5098-104. doi: 10.1074/jbc.272.8.5098.
Pubmed: 9030575
Vandenbergh DJ, Persico AM, Uhl GR: A human dopamine transporter cDNA predicts reduced glycosylation, displays a novel repetitive element and provides racially-dimorphic TaqI RFLPs. Brain Res Mol Brain Res. 1992 Sep;15(1-2):161-6. doi: 10.1016/0169-328x(92)90165-8.
Pubmed: 1359373
Giros B, el Mestikawy S, Godinot N, Zheng K, Han H, Yang-Feng T, Caron MG: Cloning, pharmacological characterization, and chromosome assignment of the human dopamine transporter. Mol Pharmacol. 1992 Sep;42(3):383-90.
Pubmed: 1406597
Pristupa ZB, Wilson JM, Hoffman BJ, Kish SJ, Niznik HB: Pharmacological heterogeneity of the cloned and native human dopamine transporter: disassociation of [3H]WIN 35,428 and [3H]GBR 12,935 binding. Mol Pharmacol. 1994 Jan;45(1):125-35.
Pubmed: 8302271
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