ArticleScientific reports2025
Combined loss of brevican, neurocan, tenascin-C and tenascin-R leads to impaired fear retrieval due to perineuronal net loss.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- The Predictive Value of Tenascin-C, Neopterin and Pro-Inflammatory Cytokines (IFN-γ, TNF-α, IL-6) in Alcohol Use Disorder Treatment Response.Addiction biology · 2026Observational
- Activity-dependent extracellular proteolytic cascade cleaves the ECM component brevican to promote structural plasticity.EMBO reports · 2026Article
- Modulating NLRP3 Inflammasome Activity and Enhancing Cortical Synaptic Plasticity: Nanoparticulate Hydrogen's Role in Relief of Post-traumatic Anxiety-like Behaviors in Rats.Molecular neurobiology · 2025Article
- The Role of Tenascin-C in Neuroinflammation and Neuroplasticity.International journal of molecular sciences · 2025Review
- Aggrecan protects against plaque accumulation and is essential for proper microglial responses to plaques.Cell reports · 2025Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In conditions such as neurodegenerative diseases, posttraumatic stress disorder (PTSD), addiction and spinal cord injuries, restricted synaptic plasticity hinders the formation of new neuronal connections, preventing the compensation and treatment of adverse behaviors. Perineuronal nets (PNNs) significantly restrict synaptic plasticity by inhibiting synapse formation. The digestion of PNNs has been associated with short-term cognitive improvements and reduced long-term memory, offering potential therapeutic benefits in PTSD. This study investigates the correlation between PNNs and fear memory processes in extracellular matrix (ECM) mutant mice, particularly focusing on the amygdala-medial prefrontal cortex (mPFC) circuit, which is crucial for fear memory generation and maintenance. Fear conditioning was conducted on mice lacking four key ECM-molecules: brevican, neurocan, tenascin-C and tenascin-R (4x KO). These mice exhibited severe impairments in memory consolidation, as evident by their inability to retrieve previously learned fear memories, coupled with reduced PNN density and disturbed synaptic integrity along their PNNs. Additionally, changes in neural activity in the basolateral amygdala (BL) and reductions in VGAT
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Registered trials
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