Nephi Stella, PhD

Personal Statement

My laboratory studies the therapeutic value and molecular mechanism of action of drugs targeting the cannabinoid signaling system. Our goal is to develop novel treatments for brain deficits and cognitive impairment linked to neurodegeneration (Huntington’s disease) and drug addiction. We are particularly interested in the cannabinoid signaling system expressed by medium spiny neurons (MSN), a neuronal cell population affected in both diseases.

To understand how cannabinoid receptors and their endogenous ligands, the endocannabinoids, control fundamental functions of MSN under healthy and disease states, we leverages a broad array of analytical approaches and molecular technics. Thus, over the years, my laboratory has acquired expertise in analytical chemistry (especially measuring drugs and lipids by GC-MS and LC-MS, and more recently proteins by SILAC), pharmacology (especially the pharmacodynamics characteristics of compounds acting at GPCR), biochemistry (second messengers and enzymatic activities), molecular biology (subcloning and genetic manipulations of protein expression), cell phenotype (gene arrays and qPCR), cell viability (both using metabolism and cell integrity-based assays), semi-quantitative immunocytochemistry and immunohistochemistry, pharmacokinetics, safety and toxicology and animal behavior (motor and motivated: e.g. drug sensitization and CPP).

Department Affiliations

Recent Publications

Author Correction: Endocannabinoids facilitate reward engagement through retrograde gain control.
(2026 Sep 2)
Nature
Marcus DJ, English AE, Chun G, Seth EF, Oommen R, Hwang S, Wells BA, Piantadosi SC, Suko A, Kenmochi SJ, Parasnis AA, Ancell E, Li Y, Zweifel LS, Land BB, Stella N, Bruchas MR

Cannabinoid efficacy for pain: dose, chronicity and route.
(2026)
Front Neurosci 20(): 1888863
Ellioff KJ, Critz M, Stella N, Bruchas MR, Land BB

Endocannabinoids facilitate reward engagement through retrograde gain control.
(2026 Aug 26)
Nature
Marcus DJ, English AE, Chun G, Seth EF, Oommen R, Hwang S, Wells BA, Piantadosi SC, Suko A, Kenmochi SJ, Parasnis AA, Ancell E, Li Y, Zweifel LS, Land BB, Stella N, Bruchas MR

Differential increase in endocannabinoid levels at the plasma and intracellular membranes.
(2025 Nov 21)
iScience 28(11): 113873
Singh S, English A, Yu J, Sarroza D, Zweifel L, Bruchas MR, Land BB, Vivas O, Stella N

Behavioral Decoding Reveals Cortical Endocannabinoid Potentiation during Δ(9)-THC Impairment.
(2025 Sep 28)
bioRxiv
English A, Marcus D, Yadav K, Elkhouly Y, Levy A, Corbit V, Ask M, Scedberg A, Poces-Ball J, Uittenbogaard F, Simons R, Witten I, Zweifel L, Land B, Stella N, Bruchas MR

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