What question did this study set out to answer?

The study aims to assess the impact of peniocerol on inflammation induced by IL-1β and TNF-α in meniscal fibrochondrocytes.

June 25, 2026Cellular and Molecular BiologyOpen Access

Effect of peniocerol on human meniscal fibrochondrocyte inflammation inducedby IL-1β and TNF-α through the NF-κB signaling pathway

Q: What are the key findings of this study?

In an in vitro model of meniscal inflammation, peniocerol at 500 μM normalized ACAN, Col2A1, and p65 levels to control values and significantly inhibited COL I+III and MMP13 expression.

Q: What is the clinical evidence from this study?

Study design: Other. Population: Osteoarthritis (in vitro inflammation model). Intervention: Peniocerol vs. Untreated control, IL-1β alone, and TNF-α alone. Primary outcome: Expression of ACAN, type I+III collagen, type II collagen, MMP13, and p65 (p=<0.001).

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Key result

In vitro peniocerol normalizes meniscal inflammatory markers and strongly inhibits collagen and MMP13 expression.

P<0.001

Why the study?

Meniscal damage has a bidirectional relationship with osteoarthritis onset and progression, necessitating new therapeutic strategies that address both conditions.

Does peniocerol reduce inflammation and extracellular matrix degradation in human meniscal fibrochondrocytes exposed to IL-1β and TNF-α?

Population

Cultured human meniscal fibrochondrocyte cells

Comparison

Stimulation with TNF-alpha or IL-1beta with vs without peniocerol (300 and 500 uM)

Design

In vitro study

Authors

BGBrandon Eduardo Galicia-CanalesUniversidad Nacional Autónoma de México MAMaría Del Rocío Aguilar-GaytánInstituto Nacional de Rehabilitación MÁMarco Antonio Álvarez-PérezUniversidad Autónoma de la Ciudad de México

Discussion

Member takes

Implication

Peniocerol normalizes markers in vitro; hypothesis-generating for degenerative polyarthritis and unsupported by low-certainty evidence.

Key Points

The study aims to assess the impact of peniocerol on inflammation induced by IL-1β and TNF-α in meniscal fibrochondrocytes.
In vitro model using human meniscal fibrochondrocyte cells isolated and treated with peniocerol.
Cells stimulated with TNF-α and IL-1β at specified concentrations with different peniocerol doses evaluated for cell proliferation and markers.
Immunofluorescence used to analyze cell morphology and expression levels of relevant proteins.
Peniocerol at 500 μM normalized ACAN and type II collagen levels to control, significantly reducing MMP13 and p65 expression.
Co-treatment at 300 μM showed partial improvements, while higher dose at 500 μM effectively halted extracellular matrix degradation.
Treatment with TNF-α and IL-1β led to a degenerative phenotype, evidenced by reduced ACAN and increased MMP markers.

Structured PICO

Does peniocerol reduce inflammation and extracellular matrix degradation in human meniscal fibrochondrocytes exposed to IL-1β and TNF-α?

Population

In vitro study using human meniscal fibrochondrocyte cells isolated from meniscectomy remnants to evaluate the anti-inflammatory effects of peniocerol.

Intervention

Peniocerol (PEN) at 300 and 500 µM co-administered with TNF-α (10 ng/mL) or IL-1β (5 ng/mL) for 24 hours.

Comparator

Control (no treatment) and cells treated with TNF-α or IL-1β alone.

Outcome

Cell morphology and expression of ACAN, type I+III collagen, type II collagen, MMP13, and p65 evaluated by immunofluorescence and toluidine blue staining.surrogate

Main Result

p-value: p=<0.001

Peniocerol demonstrates protective and restorative effects against pro-inflammatory cytokine-induced extracellular matrix degradation in human meniscal fibrochondrocytes in vitro.

Cite This Study

Galicia-Canales et al. (2026) studied Osteoarthritis (in vitro inflammation model). Peniocerol vs. Untreated control, IL-1β alone, and TNF-α alone was evaluated on Expression of ACAN, type I+III collagen, type II collagen, MMP13, and p65 (p=<0.001). In an in vitro model of meniscal inflammation, peniocerol at 500 μM normalized ACAN, Col2A1, and p65 levels to control values and significantly inhibited COL I+III and MMP13 expression.

synapsesocial.com/papers/6a3d91bf408ebb922448b0e9 https://doi.org/10.14715/cmb/2025.72.3.5

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Effect of peniocerol on human meniscal fibrochondrocyte inflammation inducedby IL-1β and TNF-α through the NF-κB signaling pathway

Discussion

Member takes

Implication

Key Points

Structured PICO

Main Result

Cite This Study

Effect of peniocerol on human meniscal fibrochondrocyte inflammation inducedby IL-1β and TNF-α through the NF-κB signaling pathway

Discussion

Member takes

Implication

Key Points

Structured PICO

Main Result

Cite This Study

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