Ricardo Marquez Gomez
Ph.D.
Postdoctoral Research Scientist
Developing technologies to generate human micro-circuits on-a-dish
Background
I studied Cellular and Molecular Neurobiology in Mexico and my research focused on finding novel GPCRs heterodimers in the striatum and their molecular fingerprint. This was done by chassical biochemical approaches (co-IP) from cells and brain tissue, and Functional Complementation Assays.
In 2019, I obtained funding from the Royal Society to join the Department of Pharmacology at University of Oxford as a Newton International Fellow to study how histamine regulates cortico-striatal development, using optogenetics and electrophysiology.
DPAG
I joined DPAG in 2021 as part of Wade-Martins group on a collaborative project with Astra Zeneca that aimed to test drug candidates to alleviate Parkinson's disease (PD). In this project I used high-throughput screening, CRISPRi technology and calcium release experiments in iPSCs Dopaminergic neurons. This project resulted in moving drug candidates into pre-clinical trials.
My current project aims to develop neuronal microcircuits on-a-dish using human hiPSCs. We have a strong interdisciplinary collaboration with Researchers at Chemistry and Engineering to use 3D bioprinting and fluid walls microfluidics to form functional connections between hiPSCs neurons, that can recapitulate the circuitry affected in Parkinson's disease (cortical-striatal-dopamine circuit).
Using this microcircuits, we are looking at expression of G protein coupled receptors and how they modulate neuronal transmission in a human contexts. GPCRs represent around 50% of drug targets in the current market and are the responsible for the actions of neurmoduators like dopamine and serotonin.
Recent publications
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Early deficits in an in vitro striatal microcircuit model carrying the Parkinson's GBA-N370S mutation.
Journal article
Do QB. et al, (2024), NPJ Parkinsons Dis, 10
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Post-translational proteomics platform identifies neurite outgrowth impairments in Parkinson's disease GBA-N370S dopamine neurons.
Journal article
Bogetofte H. et al, (2023), Cell Rep, 42
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Early striatal hyperexcitability in anin vitrohuman striatal microcircuit model carrying the Parkinson’sGBA-N370Smutation
Preprint
Do QB. et al, (2023)
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Histaminergic Control of Corticostriatal Synaptic Plasticity during Early Postnatal Development.
Journal article
Han S. et al, (2020), J Neurosci, 40, 6557 - 6571
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Histamine H3 receptor activation reduces the impairment in prepulse inhibition (PPI) of the acoustic startle response and Akt phosphorylation induced by MK-801 (dizocilpine), antagonist at N-Methyl-d-Aspartate (NMDA) receptors.
Journal article
Aquino-Miranda G. et al, (2019), Prog Neuropsychopharmacol Biol Psychiatry, 94
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Monoamines and their Derivatives on GPCRs: Potential Therapy for Alzheimer's Disease.
Journal article
Farfán-García ED. et al, (2019), Curr Alzheimer Res, 16, 871 - 894
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Functional histamine H3 and adenosine A2A receptor heteromers in recombinant cells and rat striatum.
Journal article
Márquez-Gómez R. et al, (2018), Pharmacol Res, 129, 515 - 525
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Clobenpropit, a histamine H3 receptor antagonist/inverse agonist, inhibits [3H]-dopamine uptake by human neuroblastoma SH-SY5Y cells and rat brain synaptosomes.
Journal article
Mena-Avila E. et al, (2018), Pharmacol Rep, 70, 146 - 155
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The Histamine H3 Receptor: Structure, Pharmacology, and Function.
Journal article
Nieto-Alamilla G. et al, (2016), Mol Pharmacol, 90, 649 - 673
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Modulation by histamine H3 receptors of neurotransmitter release in the Basal Ganglia
Chapter
Márquez-Gómez R. et al, (2016), Receptors, 28, 265 - 293

