The landscape of cocaine cytotoxicity and the role of sigma-1 receptor modulation and adulterant synergism - Report - MDSpire

The landscape of cocaine cytotoxicity and the role of sigma-1 receptor modulation and adulterant synergism

  • By

  • Aline Steinmetz

  • Carlo Frederico Moro

  • Luana Freese

  • Murilo Sander de Abreu

  • Rodrigo Ligabue Braum

  • Helena Maria Tannhauser Barros

  • Dinara Jaqueline Moura

  • May 13, 2026

  • 0 min

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Clinical Report: Exploring Cocaine-Induced Cytotoxicity and Sigma-1 Receptor Modulation

Overview

Cocaine use has surged globally, leading to significant public health concerns due to its cytotoxic effects across multiple biological systems. This report highlights the role of sigma-1 receptors in mediating cocaine's toxicity and the exacerbating effects of common adulterants.

Background

Cocaine remains a major public health issue, with an estimated 25 million users worldwide in 2023. Its cytotoxicity extends beyond the central nervous system, affecting various organ systems and often worsened by adulterants. Understanding the mechanisms of cocaine-induced cytotoxicity is crucial for developing effective interventions.

Data Highlights

No specific numerical data provided in the article.

Key Findings

  • Cocaine induces significant cytotoxic effects in neuronal and glial cells, leading to cell death.
  • The sigma-1 receptor (σ1R) modulates the cytotoxic effects of cocaine by influencing calcium homeostasis and mitochondrial integrity.
  • Common adulterants like phenacetin, levamisole, and caffeine can synergistically enhance cocaine's cytotoxicity.
  • In vivo and in vitro studies confirm the detrimental impact of cocaine metabolites on cell viability.
  • The rise in cocaine use correlates with increased medical complications and overdose risks.

Clinical Implications

Healthcare professionals should be aware of the systemic effects of cocaine and its adulterants when treating patients. Understanding the role of sigma-1 receptors may provide insights into potential therapeutic targets for mitigating cocaine-induced toxicity.

Conclusion

Cocaine's cytotoxicity and the influence of sigma-1 receptor modulation underscore the need for comprehensive strategies to address cocaine use and its health implications. Further research is essential to explore targeted interventions.

Related Resources & Content

  1. UNODC, World Drug Report 2025 -- Cocaine Use and Public Health
  2. Archives of Toxicology, 2025 -- In Silico Toxicity Assessment of Phencyclidine Derivatives
  3. JAMA Network Open, 2023 -- Psilocybin in the Treatment of Cocaine Use Disorder
  4. Archives of Toxicology, 2020 -- Synthetic Drugs: Their Mechanisms and Potential Side Effects
  5. conexiant — Psilocybin for Cocaine Use: Signal or Noise?
  6. Cocaine Toxicity - StatPearls
  7. Sigma 1 Receptor and Its Pivotal Role in Neurological Disorders
  8. Under embargo until 26 June 2025 at 8 am CEST

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