Related Experiment Video

Updated: Jan 11, 2026

Network Pharmacology and Validation of the Antidepressant Mechanisms of Qiangzhifang in a Chronic Restraint Stress-induced Depression Rat Model
08:15

Network Pharmacology and Validation of the Antidepressant Mechanisms of Qiangzhifang in a Chronic Restraint Stress-induced Depression Rat Model

Published on: June 6, 2025

503

Role of chemokines in depression: Highlights on CX3CL1/CX3CR1 signaling

Yong-Yu Yin1, Yun-Feng Li1,2

  • 1Beijing Institute of Pharmacology and Toxicology, China.

Journal of Psychopharmacology (Oxford, England)
|November 17, 2025
PubMed

Insights

Chemokine signaling involving CX3CL1 (Fractalkine) and its receptor CX3CR1 is crucial for brain function. This pathway impacts neuroinflammation and synaptic plasticity, offering insights into depression mechanisms and treatments.

Area of Science:

  • Neuroscience
  • Immunology
  • Psychiatry

Background:

  • Depression is a widespread mental disorder with unclear underlying mechanisms.
  • Chemokine signaling, specifically CX3CL1/CX3CR1, is increasingly implicated in depression's pathophysiology.
  • CX3CL1 (Fractalkine) binds to CX3CR1, mediating microglial-neuronal communication in the CNS.

Purpose of the Study:

  • To provide a comprehensive review of CX3CL1/CX3CR1 signaling.
  • To explore its role in neuroinflammation, synaptic plasticity, and cognition.
  • To discuss its significance in depression pathophysiology and treatment.

Main Methods:

  • This study is a narrative review.
  • It synthesizes existing research on CX3CL1/CX3CR1 signaling.
  • Focuses on its involvement in neurological and psychiatric conditions.

Main Results:

  • CX3CL1/CX3CR1 signaling is a critical regulator of neuroinflammation and synaptic plasticity.
  • This pathway influences neuronal communication and brain function.
  • Evidence suggests its involvement in the development and progression of depression.

Conclusions:

  • The CX3CL1/CX3CR1 pathway is a key player in the neurobiological underpinnings of depression.
  • Understanding this signaling is vital for developing novel antidepressant strategies.
  • This review highlights the pathway's significance in neuropsychopharmacology.

Keywords:
CX3CL1/CX3CR1antidepressantdepressionneuroinflammation

More Related Videos

Animal Models of Depression - Chronic Despair Model CDM05:47

Animal Models of Depression - Chronic Despair Model CDM

Published on: September 23, 2021

8.0K
Induction of Experimental Autoimmune Encephalomyelitis in Mice and Evaluation of the Disease-dependent Distribution of Immune Cells in Various Tissues08:47

Induction of Experimental Autoimmune Encephalomyelitis in Mice and Evaluation of the Disease-dependent Distribution of Immune Cells in Various Tissues

Published on: May 8, 2016

24.7K

Related Concept Videos

Depression: Overview01:18

Depression: Overview

Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
756
Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon...
4.3K
Depressive Disorders: Etiology01:27

Depressive Disorders: Etiology

Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
423
G-protein Coupled Receptors01:21

G-protein Coupled Receptors

G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
131.4K
Receptor Downregulation in MVBs01:15

Receptor Downregulation in MVBs

Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that  lead to cell proliferation, migration, and differentiation. Overexpression of EGFR  stimulates cells to proliferate. Excessive  EGFR...
2.7K
Chemical Signaling in the Endocrine System01:08

Chemical Signaling in the Endocrine System

A signaling cascade is a series of events that facilitates the transmission of information within or between cells, culminating in a targeted response in the recipient cell. As chemical messengers, hormones are pivotal in initiating and modulating these intricate signaling cascades based on their solubility.
Lipid-soluble hormones, such as steroid hormones, demonstrate an intracellular action. These hormones traverse cell membranes due to their lipid nature. Once inside the target cell, they...
6.0K