CGRP protects against sepsis-induced organ damage through anti-inflammatory and anti-oxidative mechanisms | Research

The takeaway

CGRP reduces inflammatory cytokines, inhibits oxidative stress, and decreases organ-specific inflammation in sepsis, with CGRP receptor-deficient mice showing worse outcomes—positioning CGRP agonism as a potential sepsis treatment.

CGRP protects in sepsis
CGRP receptor-deficient mice showed worse sepsis outcomes, positioning CGRP agonism as a potential treatment for sepsis-induced organ failure

What the researchers found

CGRP reduces inflammatory cytokines, inhibits oxidative stress, and decreases organ inflammation in sepsis. RAMP1 and TRPV1 knockout mice showed worse sepsis outcomes. CGRP modulates specific signaling pathways for organ-specific protection.

Why it matters

Sepsis kills millions annually with limited treatment options. CGRP agonism could provide a novel therapeutic approach targeting both inflammation and organ protection simultaneously.

How the study worked

First comprehensive review of in vitro and in vivo evidence for CGRP in sepsis-associated organ dysfunction.

What this study cannot tell us

Review of preclinical evidence. No clinical trials of CGRP agonists for sepsis. Timing and dosing of CGRP in sepsis are undefined. CGRP's vasodilatory effects could worsen septic shock if not carefully managed.

How to read the evidence

First comprehensive review of preclinical evidence. Strong mechanistic data but no clinical validation.

When this study was published

Published in 2025.

The bigger picture

While CGRP antagonists are used for migraine, this review highlights that CGRP agonism could be therapeutic in sepsis—a completely opposite clinical application for the same peptide system.

Questions still open

Could CGRP agonists be safely administered during septic shock given their vasodilatory effects?
Which organs benefit most from CGRP protection in sepsis?
Should CGRP-blocking migraine drugs be paused during sepsis?

Common questions

Can a migraine peptide help with sepsis?

CGRP, the same peptide targeted by migraine drugs (which block it), appears to protect against sepsis when its signaling is enhanced. Mice lacking CGRP receptors had worse sepsis outcomes. This suggests CGRP agonists (the opposite of migraine drugs) could become a novel sepsis treatment.

How does CGRP protect organs during sepsis?

CGRP reduces the release of inflammatory molecules (cytokines), blocks oxidative stress pathways, and directly decreases inflammation in specific organs. This multi-mechanism protection addresses the fundamental problem in sepsis—the body's own immune response causing organ damage.

Read the original research

Calcitonin gene-related peptide (CGRP): A potential therapeutic target against sepsis and sepsis-associated multiple organ failure.

Biochemical pharmacology, 242(Pt 3), 117206

View on PubMed ↗Publisher’s paper ↗

Citation

Singh, Harshita; Naik, Manoj; Suri, Manisha; Hanifa, Mohd; Jaggi, Amteshwar Singh; Bali, Anjana. (2025). Calcitonin gene-related peptide (CGRP): A potential therapeutic target against sepsis and sepsis-associated multiple organ failure.. Biochemical pharmacology, 242(Pt 3), 117206. https://doi.org/10.1016/j.bcp.2025.117206