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DƯỢC LÍ Goodman & Gilman's The Pharmacological Basis of Therapeutics 12th, 2010

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Table 13–1

Serotonin Receptor Subtypes

5-HT 1 , 5-HT 2 , 5-HT 4–7

STRUCTURAL FAMILIES

5-HT 3

G protein–coupled receptor

5-HT–gated ion channel

GENE SIGNAL SELECTIVE SELECTIVE

SUBTYPE STRUCTURE TRANSDUCTION LOCALIZATION FUNCTION AGONIST ANTAGONIST

5-HT 1A

Intronless b AC Raphe nuclei Autoreceptor 8-OH-DPAT WAY 100135

Cortex

Hippocampus

a

5-HT 1B

Intronless b AC Subiculum Autoreceptor — —

Globus pallidus

Substantia nigra

5-HT 1D

Intronless b AC Cranial blood vessels Vasoconstriction Sumatriptan —

Globus pallidus

Substantia nigra

5-HT 1E

Intronless b AC Cortex — — —

Striatum

b

5-HT 1F

Intronless b AC Brain and periphery — — —

5-HT 2A

Introns a PLC and Platelets Aggregation α-Methyl-5-HT, Ketanserin

(D receptor) a PLA 2

Smooth muscle Contraction DOI, MCPP

Cerebral cortex Neuronal excitation LY53857

MDL 100, 907

5-HT 2B

Introns a PLC Stomach fundus Contraction α-Methyl-5-HT, DOI LY53857

SB206553

5-HT 2C

Introns a PLC Choroid plexus CSF production α-Methyl-5-HT, LY53857

a PLA 2

Hypothalamus Neuronal excitation DOI, MK 2.2 SB 2022084

Mesulergine

5-HT 3

Introns Ligand-operated Parasympathetic nerves Neuronal excitation 2-Methyl-5-HT Ondansetron

(M receptor) ion channel Solitary tract Tropisetron

Area postrema

5-HT 4

Introns a AC Hippocampus Neuronal excitation Renzapride GR 113808

GI tract

5-HT 5A

Introns b AC Hippocampus Unknown — —

5-HT 5B

Introns Unknown — Pseudogene — —

5-HT 6

Introns a AC Hippocampus Neuronal excitation — SB 271046

Striatum

Nucleus accumbens

5-HT 7

Introns a AC Hypothalamus Unknown 5-carboxamino-

Hippocampus

tryptamine

GI tract

a

Also referred to as 5-HT 1DB

. b Also referred to as 5-HT 1EB

.

AC, adenylyl cyclase; PLC, phospholipase C; PLA 2

; phospholipase A 2

; 8-OH-DPAT, 8-hydroxy-(2-N,N-dipropylamino)-tetraline; DOI, 1-(2,5-dimethoxy-4-iodophenyl) isopropylamine;

MCPP, metachlorphenylpiperazine; MK212.

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