Pharmacology and toxicology explore how substances interact with living systems, ranging from the development of life-saving medicines to understanding the dangers of chemical exposure. This field sits at the critical intersection of chemistry and biology, asking essential questions about how drugs work, how the body processes them, and what happens when things go wrong. It is a dynamic area where researchers constantly strive to improve patient safety while discovering new therapeutic possibilities.

At Gist.Science, we bridge the gap between complex research and public understanding by curating the latest preprints from bioRxiv in this vital category. Our team processes every new submission from bioRxiv as it appears, transforming dense scientific data into both plain-language overviews and detailed technical summaries. This ensures that whether you are a specialist or a curious reader, you can grasp the significance of these emerging findings without getting lost in jargon.

Below are the most recent pharmacology and toxicology papers from bioRxiv, each accompanied by our expert analysis to help you navigate the latest scientific breakthroughs.

📄 pharmacology and toxicology

Polypharmacology of an Optimal Kinase Library

This study presents a comprehensive kinome-wide profiling of 192 diverse kinase inhibitors, revealing that polypharmacology is widespread and independent of regulatory approval, with many approved drugs exhibiting potent off-target effects on understudied kinases that complicate mechanism-of-action studies but offer opportunities for drug repurposing and toxicity prediction.

Mills, C. E., Hug, C., Sajeevan, K. A., Clark, N., Victor, C., Chung, M., Rawat, S., Aldridge, B., Albers, M. W., Chowdh (…)2026-03-19
📄 pharmacology and toxicology

Antidepressants interact with sex steroid receptors and their intracellular signaling components

This study demonstrates through computational and experimental methods that antidepressants interact with estrogen receptors, suggesting that their clinical efficacy may partly stem from modulating hormone signaling pathways in addition to their effects on monoaminergic targets.

Arjmand, S., Rezaei, M., Sardella, D., Cecchi, C. R., Rossi, R., Vaegter, C. B., Müller, H. K., Sahana, J., Nielsen, M. (…)2026-03-19
📄 pharmacology and toxicology

Identification of compounds that repress DUX4 expression in facioscapulohumeral muscular dystrophy

Using an AI-based screening pipeline targeting the chromatin remodeling factor BAZ1A, researchers identified compound C06 as a potent and specific repressor of pathogenic DUX4 expression in facioscapulohumeral muscular dystrophy, demonstrating its viability as a therapeutic candidate despite its ability to inhibit multiple kinases.

Chang, N., Moore, H. P., Himeda, C. L., O'Brien, T. E., Thomas, W., Jones, T. I., Jones, P. L.2026-03-11
📄 pharmacology and toxicology

Discovery of the first small-molecule extracellular inhibitor of KCa3.1

This study reports the discovery of a novel small-molecule extracellular inhibitor of the KCa3.1 ion channel, identified through structure-based molecular dynamics simulations and virtual screening of the Molport database, which was subsequently validated experimentally via patch clamp assays.

Massa, J., Hense, J., Gangnus, T., Gozzi, M., Bulk, E. E., Burckhardt, B., Duefer, M., Schwab, A., Koch, O.2026-03-10
📄 pharmacology and toxicology

Paralysis Efficiency (ED50) Scales Linearly with Lethality (LD50) in Spider Venoms

This study demonstrates that spider venom lethality (LD50) and paralysis efficiency (ED50) are strongly and isometrically coupled, indicating that historically available LD50 values can serve as reliable proxies for ecologically relevant venom potency when derived from the same prey model.

Lyons, K., Leonard, D., McSharry, L., Martindale, M., Collier, B., Vitkauskaite, A., Dunbar, J. P., Dugon, M. M., Healy (…)2026-03-09
📄 pharmacology and toxicology

MD simulations of Human Sigma1 Receptor Trimer Uncovers Cholesterol Dependent Stabilization and Ligand Specific Dynamics

This study utilizes extensive atomistic molecular dynamics simulations to demonstrate that cholesterol stabilizes the human Sigma-1 receptor trimer and that distinct agonist and antagonist ligands differentially modulate its oligomeric dynamics through specific interactions involving the β\beta6-strand and residue W136.

Nanna, V., Paternoster, C., Bartocci, A., Alberga, D., Abate, C., Lattanzi, G., Mangiatordi, G. F.2026-03-08
📄 pharmacology and toxicology

A spoonful of what helps the medicine go down? Improving the reliability of voluntary ingestion for oral dosing in rats and mice

This study demonstrates that incorporating taste-masking agents, such as Bitter Drug Powder or a combination of artificial sweeteners and a thickening agent, into a palatable vehicle significantly improves the reliability of voluntary oral dosing for bitter compounds in rats and mice, offering a refined alternative to oral gavage.

Bartlett, J., Robinson, E.2026-03-06
📄 pharmacology and toxicology

Mathematical diabetes disease progression modeling in the integrated glucose-insulin model among individuals with impaired glucose tolerance from the Finnish Diabetes Prevention Study

This study successfully extended the integrated glucose-insulin (IGI) model to quantify disease progression in individuals with impaired glucose tolerance by characterizing the annual decline in insulin secretion and sensitivity, while demonstrating that lifestyle intervention significantly slows this deterioration and improves beta-cell function.

Ghadzi, S. M. S., Karlsson, M. O., de Mello, V., Uusitupa, M., Kjellsson, M. C.2026-03-03
📄 pharmacology and toxicology

Partial Differential Equation (PDE) Based Spatial Pharmacometrics in NONMEM: Method of Lines (MOL) Implementation With AI-Assisted Model Development

This paper presents an AI-assisted workflow that streamlines the implementation of spatial Partial Differential Equation (PDE) models in NONMEM by automatically translating reaction-diffusion equations into executable Method of Lines (MOL) ODE systems, thereby overcoming the operational complexity of manual coding to enable practical, transparent, and maintainable modeling of intra-tumoral drug distribution.

LI, Y., CHENG, Y.2026-03-03