Cited by 13Tryptophan and brain disordersNeuroinflammation and Neurodegeneration MechanismsTreatment of Major Depression

From blood to brain: exploring the role of fibrinogen in the pathophysiology of depression and other neurological disorders

Patel, Shashikant, Govindarajan, Venkatesh, Chakravarty, Sumana, Dubey, Neelima·2024·International Immunopharmacology

Abstract

Recent findings indicate that fibrinogen, a protein involved in blood clotting, plays a significant role in neuroinflammation and mood disorders. Elevated fibrinogen levels are consistently observed in individuals with depression, potentially contributing to microglial activation. This could impair fibrinolysis and contribute to a pro-inflammatory environment in the brain. This neuroinflammatory response can impair neuroplasticity, a key process for learning, memory, and mood regulation. Fibrinogen may also indirectly influence neurotransmitters like serotonin, which play a vital role in mood regulation. Furthermore, fibrinogen's interaction with astrocytes may trigger a cascade of events leading to demyelination, a process where the protective sheath around nerve fibers deteriorates. This can disrupt communication within the nervous system and contribute to depression symptoms. Intriguingly, targeting fibrinogen or related pathways holds promise for therapeutic interventions. For instance, modulating PAI-1 (Plasminogen activator inhibitor-1) activity or inhibiting fibrinogen's interaction with brain cells could be potential strategies. This review explores the multifaceted relationship between fibrinogen and neurological disorders with a focus on depression highlighting its potential as a therapeutic target. Further research is necessary to fully elucidate the mechanisms underlying this association and develop effective therapeutic strategies targeting the fibrinolytic system for mood disorders.

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Crossref · 10.1016/j.intimp.2024.113326

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  • Peripheral inflammatory activity reflected in elevated CRP, fibrinogen, and TRYCATs is higher among suicidal individuals than in psychiatric or healthy controls.

    “Early psychoneuroimmunology research established that peripheral inflammatory activity reflected in elevated C-reactive protein (CRP), fibrinogen, and tryptophan catabolites (TRYCATs) is higher among suicidal individuals than in psychiatric or healthy controls (74–76).”

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Authors
Patel, S., Govindarajan, V., Chakravarty, S., & Dubey, N.
Affiliations
  • Indian Institute of Chemical Technology (IN)
  • University of Hyderabad (IN)
Corresponding author
  • Chakravarty, Sumana
  • Dubey, Neelima
Venue
International Immunopharmacology
Publisher
Elsevier BV
Published
2024-12
Volume
143
Issue
Pt 1
Pages
113326
ISSN
1567-5769 (ISSN-L)
OpenAlex
W4403298194
Cited by
10
References
92
Citations by year
2026: 4 · 2025: 6
FWCI
0.34
Type
journal article
Language
en
Open access
closed
Locations
  • International Immunopharmacology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
fibrinogen, depression, neuroinflammation, microglial activation, fibrinolysis, neuroplasticity, serotonin, astrocytes, demyelination, plasminogen activator inhibitor-1, mood disorders, therapeutic target
MeSH terms
Animals, Brain, Depression, Fibrinogen, Humans, Nervous System Diseases

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