5-HT2A receptor ↔ psilocybin

Relations (1)

related 5.00 — strongly supporting 5 facts

Psilocybin is a serotonergic psychedelic that functions as an agonist for the 5-HT2A receptor, as evidenced by its binding activity [1], [2] and its role in modulating receptor-mediated active coping strategies [3]. Furthermore, the activation of these receptors by psilocybin is directly linked to changes in sensory perception [4] and measurable physiological shifts in receptor density [5].

Facts (5)

Sources

Neuroimaging in psychedelic drug development: past, present, and ... nature.com Nature 3 facts

measurementA single dose of psilocybin increases synaptic density and decreases 5-HT2A receptor density in the pig brain, according to a 2020 study.

claimClassic serotonergic psychedelics, such as psilocybin and lysergic acid diethylamide (LSD), primarily act on the 5-HT2A receptor.

claimThe 5-HT2AR agonist PET ligand [11C]Cimbi-36 has higher sensitivity to serotonin receptor agonists and has been used to demonstrate that the acute subjective effects of psilocybin (specifically its active metabolite psilocin) are related to its binding at 5-HT2A receptors.

Effects of psychedelics on neurogenesis and broader neuroplasticity link.springer.com Springer 1 fact

claimActivation of 5-HT2A receptors by substances such as LSD and psilocybin results in altered sensory perception and cognition.

Psychedelics, Sociality, and Human Evolution frontiersin.org Frontiers 1 fact

referencePsilocybin may have been harnessed to increase adaptability and fitness through its capacity to modulate the 5-HT2A receptor-mediated active coping strategy, which provides elevated cortical plasticity, an enhanced rate of associative learning, and an elevated capacity to mediate psychological transformation, according to Carhart-Harris and Nutt (2017) and Brouwer and Carhart-Harris (2021).