May 15, 2026

Anti-Inflammatory Effects of PBM Are Mediated by Cytokines: IL-1β, IL-18, IL-10, Shamloo et al 2023

Condition Focus: Systemic Inflammation — NLRP3 Output Suppression via Dual-Wavelength PBM

This 2023 study from Shamloo and colleagues at Stanford represents the critical bridge between gout pathology and PBM therapy. Using an LPS-induced inflammation model in mice, the researchers demonstrated that dual-wavelength PBM (640 nm red + 880 nm near-infrared) suppressed the exact cytokines that the NLRP3 inflammasome produces in gout: IL-1β and IL-18. Simultaneously, PBM upregulated IL-10 — the anti-inflammatory cytokine that helps resolve inflammation.

The cytokine profile affected here — IL-1β down, IL-18 down, IL-10 up — is the mirror image of what happens during a gout flare (IL-1β up, IL-18 up, IL-10 insufficient). PBM effectively reverses the inflammatory cytokine signature.

The study also investigated a 40 Hz gamma frequency flicker modality and found it potentiated some anti-inflammatory effects, though the PBM-only arm showed robust results independently. The dual-wavelength approach — combining red and NIR simultaneously — is particularly relevant because it delivers both surface-tissue (red) and deep-tissue (NIR) effects in a single treatment session.

Importantly, this was measured at both systemic and central nervous system levels, demonstrating that PBM’s anti-inflammatory effects extend beyond the local treatment site. For gout patients, this suggests that even a locally applied device may help modulate the systemic inflammatory burden that accompanies chronic hyperuricaemia.

G.O.A.T. for Gout Alignment:
The dual-wavelength approach used here (640 nm + 880 nm) closely parallels the G.O.A.T.’s 660 nm + 850 nm configuration. The suppression of IL-1β and IL-18 — the two primary NLRP3 outputs in gout — represents direct evidence that dual-wavelength PBM opposes the gout inflammasome cascade. The G.O.A.T.’s design is built on this exact dual-wavelength principle.

Link to original research here


 

Editor’s note: This study provides the direct PBM-to-NLRP3 connection. The NLRP3 cascade that produces the IL-1β and IL-18 suppressed here is mapped in Kingsbury et al 2011. The NF-κB suppression mechanism upstream of cytokine production is detailed in Immunomodulatory Effects of PBM 2025. The macrophage phenotype shift that contributes to cytokine rebalancing is explored in M1→M2 Polarization Review 2025. For the TMJ inflammation model showing similar cytokine suppression with 808 nm, see TMJ Inflammation 2020.

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Key Takeaways

  • Dual-wavelength PBM (640nm + 880nm) suppresses IL-1β and IL-18 — the exact NLRP3 outputs in gout
  • IL-10 upregulated — reversing the inflammatory cytokine balance seen in gout flares
  • Systemic and CNS anti-inflammatory effects demonstrated — not just local
  • Dual-wavelength approach directly parallels the G.O.A.T.’s 660nm + 850nm design

Study Overview

Study Type:Controlled animal study (preclinical)
Wavelength(s):640 nm + 880 nm dual-wavelength; ± 40 Hz gamma flicker
Treatment Protocol:PBM treatment following LPS-induced systemic inflammation
Sample Size:Mouse model, multiple treatment groups
Primary Outcome:IL-1β↓, IL-18↓, IL-10↑ in brain and peripheral tissue

 

Full Citation

Shamloo S, Defensor E, Ciari P, et al. (2023). The anti-inflammatory effects of photobiomodulation are mediated by cytokines: evidence from a mouse model of inflammation. Frontiers in Neuroscience, 17, 1150156. View Publication

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