# Selective Upregulation of FABP5 in Amygdala Reduces Cocaine-Seeking > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/endocannabinoid-system-cocaine-addiction-treatment/ > **Published:** 2026-03-25T23:08:13-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T10:39:00-04:00 > **Clinical Summary:** Explore how the endocannabinoid system cocaine addiction treatment research reveals FABP5's role in stress-induced cocaine-seeking behavior in mice. --- CED Clinical Relevance  #64Notable Clinical Interest  Emerging findings or policy developments worth monitoring closely. 🔬 Evidence Watch  |  CED Clinic AddictionEndocannabinoidStressCocainePreclinical Journal Neuroscience letters Study Type Clinical Study Population Human participants Why This Matters This preclinical research identifies a specific molecular target within the amygdala that modulates stress-induced cocaine craving through the [endocannabinoid system](https://cedclinic.com/endocannabinoid-system-fear-extinction/). Understanding how FABP5 regulates anandamide degradation in addiction circuits could inform targeted therapeutic strategies for [substance use disorders](https://cedclinic.com/cannabinoid-clinical-trials-mental-disorders-evidence-2/). Clinical Summary This mouse study examined how overexpressing fatty acid-binding protein 5 (FABP5) in the basolateral amygdala affects cocaine-seeking behavior during stress. FABP5 normally facilitates degradation of anandamide, the body’s natural cannabinoid that typically dampens stress responses in this brain region. The researchers used viral vectors to increase FABP5 expression and tested stress-induced reinstatement of cocaine-seeking behavior. The study provides mechanistic insight into how the endocannabinoid system’s dysfunction in addiction may be therapeutically targeted, though this remains early-stage preclinical research in animal models. Dr. Caplan’s Take “While intriguing mechanistically, this preclinical work is several translational steps removed from clinical application. The endocannabinoid system’s role in addiction is well-established, but targeting specific transport proteins requires much more development before becoming clinically relevant.” Clinical Perspective 🧠 Clinicians should view this as foundational research that may eventually inform [addiction medicine](https://cedclinic.com/cognitive-flexibility-alcohol-cocaine-misuse-effects/) approaches. Currently, evidence-based treatments for cocaine use disorder remain behavioral interventions and emerging pharmacotherapies, not endocannabinoid-targeted therapies. Patients with [substance use disorders](https://cedclinic.com/cannabinoid-clinical-trials-mental-disorders-evidence-2/) benefit most from established treatment modalities while research continues to explore these novel pathways. 💬 Join the Conversation Have a question about how this applies to your situation? [Ask Dr. Caplan →](https://benjamincaplan.com/ask-dr-caplan) Want to discuss this topic with other patients and caregivers? [Join the forum discussion →](https://cedclinic.com/interact/discussion-forums/) Have thoughts on this? Share it: [𝕏 Share on X](https://twitter.com/intent/tweet?text=Just%20read%20this%20on%20CEDclinic.com%3A%20Selective%20upregulation%20of%20fatty%20acid-binding%20protein%205%20within%20the%20basolateral%20am...%20%40drcaplan&url=https%3A//pubmed.ncbi.nlm.nih.gov/41730471/)[in Share on LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A//pubmed.ncbi.nlm.nih.gov/41730471/)[🦥 Share on BlueSky](https://bsky.app/intent/compose?text=Just%20read%20this%3A%20Selective%20upregulation%20of%20fatty%20acid-binding%20protein%205%20within%20the%20basolateral%20am...%20--%20via%20%40drcaplan.bsky.social%20https%3A//pubmed.ncbi.nlm.nih.gov/41730471/)[📷 Follow on Instagram](https://www.instagram.com/drbenjamincaplan/)[📝 Read more on Substack](https://substack.com/@doctorapproved)[🔔 Subscribe via RSS](https://cedclinic.com/category/cannabis-news/feed/) 📰 Source: [https://pubmed.ncbi.nlm.nih.gov/41730471/](https://pubmed.ncbi.nlm.nih.gov/41730471/) Table of Contents - [FAQ](#FAQ)[What role does anandamide (AEA) play in stress-induced cocaine relapse?](#What_role_does_anandamide_AEA_play_in_stress-induced_cocaine_relapse) - [How does FABP5 affect the endocannabinoid system in addiction?](#How_does_FABP5_affect_the_endocannabinoid_system_in_addiction) - [Could targeting FABP5 be a therapeutic approach for cocaine addiction?](#Could_targeting_FABP5_be_a_therapeutic_approach_for_cocaine_addiction) - [What is the connection between stress and cocaine relapse at the brain level?](#What_is_the_connection_between_stress_and_cocaine_relapse_at_the_brain_level) - [Are there any current medications that work through similar pathways?](#Are_there_any_current_medications_that_work_through_similar_pathways) - [Related](#Related) ## FAQ #### What role does anandamide (AEA) play in stress-induced cocaine relapse? Anandamide acts as a natural brake in the basolateral amygdala, reducing stress responses and anxiety behaviors that can trigger cocaine-seeking. When stress reduces AEA signaling, it leads to amygdala hyperexcitability, which contributes to cocaine relapse behavior. #### How does FABP5 affect the endocannabinoid system in addiction? FABP5 serves as the primary cellular transporter for anandamide, facilitating its breakdown by the enzyme FAAH. Increased FABP5 expression leads to faster anandamide degradation, potentially reducing the protective anti-stress effects of the [endocannabinoid system](https://cedclinic.com/endocannabinoid-system-fear-extinction/). #### Could targeting FABP5 be a therapeutic approach for cocaine addiction? This preclinical study suggests that modulating FABP5 in the amygdala affects stress-induced cocaine-seeking behavior. While promising, these mouse findings require extensive human studies before any clinical applications can be considered for [addiction treatment](https://cedclinic.com/cannabis-based-therapies-smoking-cessation/). #### What is the connection between stress and cocaine relapse at the brain level? Stress activates the hypothalamus-pituitary-adrenal axis and can cause hyperexcitability in the basolateral amygdala. This brain region normally relies on anandamide signaling to maintain emotional balance, but stress-induced disruption of this system contributes to drug-seeking behavior. #### Are there any current medications that work through similar pathways? Currently, no FDA-approved addiction medications specifically target the FABP5-anandamide pathway studied here. This research represents early-stage preclinical investigation into novel therapeutic targets rather than existing treatment options. {“@context”: “https://schema.org”, “@type”: “ScholarlyArticle”, “headline”: “Selective upregulation of fatty acid-binding protein 5 within the basolateral amygdala blunts stress-induced reinstatement of cocaine-seeking behavior in mice.”, “url”: “https://pubmed.ncbi.nlm.nih.gov/41730471/”, “about”: “neuroscience letters clinical study selective upregulation”, “isPartOf”: “Neuroscience letters”} [https://cedclinic.com/contact/](https://cedclinic.com/contact/) Physician-Led, Whole-Person Care A doctor who takes the time to truly understand you. Personal care that starts with listening and is guided by experience and ingenuity. Health, Longevity, Wellness One-on-One Cannabis Guidance Metabolic Balance [Leave a Message](https://cedclinic.com/contact/) [Metabolic Care](https://cedclinic.com/metabolic/metabolic-how-it-works/) [Medical Consulting](https://cedclinic.com/book/) [Cannabis Care](https://cedclinic.com/book/) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) RELATED READING AT CED CLINIC Continue exploring the evidence [Selective upregulation of fatty acid-binding protein 5 within the basolateral amygdala blunts stress-induced reinstatement of cocaine-seeking behavior in mice.](https://cedclinic.com/endocannabinoid-system-cocaine-addiction-treatment-research-fabp5/) Detailed research on FABP5's role in modulating cocaine-seeking behavior through the endocannabinoid system in the amygdala. [Read More](https://cedclinic.com/endocannabinoid-system-cocaine-addiction-treatment-research-fabp5/) [Craving in Addiction May Alter How the Brain Makes Decisions | Yale School of Medicine](https://cedclinic.com/craving-addiction-neurobiology-brain-decision-making/) Explore how addiction-related craving impacts brain decision-making processes, providing context for [addiction treatment](https://cedclinic.com/cannabis-based-therapies-smoking-cessation/) research. [Explore Insights](https://cedclinic.com/craving-addiction-neurobiology-brain-decision-making/) [Study Finds Cannabis Compounds May Help Reduce Fatty Liver Disease](https://cedclinic.com/cannabis-compounds-fatty-liver-disease-2026/) Research on [cannabis compounds](https://cedclinic.com/cannabis-terpene-synergy-entourage-effect/) highlights potential therapeutic effects, complementing studies on endocannabinoid system roles. [Learn More](https://cedclinic.com/cannabis-compounds-fatty-liver-disease-2026/) ### Related --- ### Verification & Medical Governance - **Lead Clinical Author:** Benjamin Caplan, MD - **Credentials:** Board Certified in Family Medicine (ABFM), Founder & CMO CED Clinic & CED Foundation, Author of *The Doctor-Approved Cannabis Handbook* (Penguin Random House). - **Clinical Scale:** 350,000+ lifetime evaluations overseen; 81,008-patient Real-World Evidence Registry (`~/.ced_rwe_vault.db`); 125,000+ peer-reviewed study literature observatory (`http://localhost:8768/api/explorer/terminal`). - **License Verification:** Commonwealth of Massachusetts License #240562 (https://checkahealthlicense.mass.gov/). - **NPI Registry:** 1962722637 (https://npiregistry.cms.hhs.gov/provider-view/1962722637). - **Ethics & Data Privacy:** Clinical registry observations adhere strictly to HIPAA Safe Harbor de-identification (45 CFR § 164.514(b)) and criteria for secondary research exemption under 45 CFR § 46.104(d)(4).