腎上腺素受體α1A
腎上腺素受體α1A(α1A adrenoreceptor),又稱為ADRA1A[6],是一種α1腎上腺素受體[7]。過去一度有α1C的分類,但在研究後認為α1C僅是α1A的一種亞型,因此取消該命名。為了避免混淆,之後新發現的亞型便從D開始繼續命名。
受體
腎上腺素受體α1共有3種亞型,包含α1A、α1B、α1D,全都屬於Gq/11家族的G蛋白。不同亞型的致活路徑有所差異,本類受體在體內主要內源性配體為腎上腺素,主要產生戰鬥或逃跑反應。
基因
該蛋白的基因共有四種剪切方式,因此共有四種同型體。不同同型體可由其C端判別,但基本上功能相同[7]。
配體
致效劑
- 6-(5-fluoro-2-pyrimidin-5-yl-phenyl)-6,7-dihydro-5H-pyrrolo[1,2-a]imidazole: EC50 = 1nM, Emax = 65%; good selectivity over α1B, α1D and α2A subtypes[8]
- further partial agonistic imidazole compounds[9][10]
- A-61603[11]
受體拮抗劑
- Tamsulosin:用於治療良性前列腺增生症
- Silodosin:用於治療良性前列腺增生症
- 維思通
- WB-4101
- Ziprasidone
在神經迴路的角色
腎上腺素受體α1A可加強對於樹樹突觸的抑制[12]。
參見
參考文獻
- ^ 對Adrenoceptor alpha 1A起作用的藥物;在維基數據上查看/編輯參考.
- ^ 2.0 2.1 2.2 GRCh38: Ensembl release 89: ENSG00000120907 - Ensembl, May 2017
- ^ 3.0 3.1 3.2 GRCm38: Ensembl release 89: ENSMUSG00000045875 - Ensembl, May 2017
- ^ Human PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ Mouse PubMed Reference:. National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ Langer SZ. Nomenclature and state of the art on alpha1-adrenoceptors. Eur. Urol. 1998,. 33 Suppl 2: 2–6. PMID 9556189. doi:10.1159/000052227.
- ^ 7.0 7.1 Entrez Gene: ADRA1A adrenergic, alpha-1A-, receptor.
- ^ Roberts LR, Fish PV, Ian Storer R, Whitlock GA. 6,7-Dihydro-5H-pyrrolo[1,2-a] imidazoles as potent and selective alpha(1A) adrenoceptor partial agonists. Bioorg. Med. Chem. Lett. April 2009, 19 (11): 3113–7. PMID 19414260. doi:10.1016/j.bmcl.2009.03.166.
- ^ Whitlock GA, Brennan PE, Roberts LR, Stobie A. Potent and selective alpha(1A) adrenoceptor partial agonists-Novel imidazole frameworks. Bioorg. Med. Chem. Lett. April 2009, 19 (11): 3118–21. PMID 19394220. doi:10.1016/j.bmcl.2009.03.162.
- ^ Roberts LR, Bryans J, Conlon K, McMurray G, Stobie A, Whitlock GA. Novel 2-imidazoles as potent, selective and CNS penetrant alpha1A adrenoceptor partial agonists. Bioorg. Med. Chem. Lett. December 2008, 18 (24): 6437–40. PMID 18980842. doi:10.1016/j.bmcl.2008.10.066.
- ^ Knepper SM, Buckner SA, Brune ME, DeBernardis JF, Meyer MD, Hancock AA. A-61603, a potent alpha 1-adrenergic receptor agonist, selective for the alpha 1A receptor subtype. J. Pharmacol. Exp. Ther. 1995, 274 (1): 97–103. PMID 7616455.
- ^ Zimnik NC, Treadway T, Smith RS, Araneda RC. α(1A)-Adrenergic regulation of inhibition in the olfactory bulb. J. Physiol. (Lond.). 2013, 591 (Pt 7): 1631–43. PMC 3624843 . PMID 23266935. doi:10.1113/jphysiol.2012.248591.
外部連結
- α1A-adrenoceptor. IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology. (原始內容存檔於2020-11-22).
延伸閱讀
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