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Robert J Tombari

6 papers in the library · 984 citations · publishing 2021-2026

Papers

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R-MDDMA is a Safer Analogue of MDMA with Therapeutic Potential.

ACS Chemical Neuroscience May 6, 2026 Maxemiliano V. Vargas, Cassandra J. Hatzipantelis, Lee E. Dunlap et al.

Recent clinical evidence suggests that racemic 3,4-methylenedioxymethamphetamine (MDMA) might be useful for treating a range of neuropsychiatric diseases including post-traumatic stress disorder (PTSD) and depression. However, concerns about its abuse potential stemming from its monoamine releasing properties have hampered its clinical development. Thus, safer analogues of racemic MDMA with...

Design, Synthesis, and In Vitro Characterization of a Tryptamine-Based Visible-Light Photoswitchable 5-HT2AR Ligand Showing Efficacy Preference for β-Arrestin over Mini-Gq.

Journal of Medicinal Chemistry June 18, 2025 Alexandra Sink, Eline Pottie, Samuel J Carter et al. 2 citations

The serotonin 2A receptor (5-HT2AR) modulates various neurotransmitter systems and is implicated in psychiatric disorders, including depression and schizophrenia. Despite progress, the detailed mechanisms of signaling at the 5-HT2AR and its therapeutic implications remain unclear, warranting further exploration. Overcoming the limitations of conventional pharmacology, photopharmacology...

Molecular design of a therapeutic LSD analogue with reduced hallucinogenic potential

Proceedings of the National Academy of Sciences April 14, 2025 Jeremy R Tuck, Lee E. Dunlap, Yara A Khatib et al. 32 citations

Decreased dendritic spine density in the cortex is a key pathological feature of neuropsychiatric diseases including depression, addiction, and schizophrenia (SCZ). Psychedelics possess a remarkable ability to promote cortical neuron growth and increase spine density; however, these compounds are contraindicated for patients with SCZ or a family history of psychosis. Here, we report the...

Developmental Neurotoxicity Screen of Psychedelics and Other Drugs of Abuse in Larval Zebrafish (Danio rerio).

ACS Chemical Neuroscience March 1, 2023 Robert J Tombari, Paige C Mundy, Kelly M Morales et al. 15 citations

In recent years, psychedelics have garnered significant interest as therapeutic agents for treating diverse neuropsychiatric disorders. However, the potential for these compounds to produce developmental neurotoxicity has not been rigorously assessed, and much of the available safety data is based on epidemiological studies with limited experimental testing in laboratory animal models....

Psychedelics promote neuroplasticity through the activation of intracellular 5-HT2A receptors

Science February 16, 2023 Maxemiliano V. Vargas, Lee E. Dunlap, Chunyang Dong et al. 467 citations

Decreased dendritic spine density in the cortex is a hallmark of several neuropsychiatric diseases, and the ability to promote cortical neuron growth has been hypothesized to underlie the rapid and sustained therapeutic effects of psychedelics. Activation of 5-hydroxytryptamine (serotonin) 2A receptors (5-HT2ARs) is essential for psychedelic-induced cortical plasticity, but it is currently...

A non-hallucinogenic psychedelic analogue with therapeutic potential.

Nature 2021 Lindsay P. Cameron, Robert J Tombari, Ju Lu et al. 468 citations

The psychedelic alkaloid ibogaine has anti-addictive properties in both humans and animals1. Unlike most medications for the treatment of substance use disorders, anecdotal reports suggest that ibogaine has the potential to treat addiction to various substances, including opiates, alcohol and psychostimulants. The effects of ibogaine-like those of other psychedelic compounds-are long-lasting2,...