Modified Bee Venom Peptide Shows Promise for Treating Severe Acute Pancreatitis | Research

The takeaway

HMLT, a histidine-modified melittin derivative, treats severe acute pancreatitis by restoring oxidative balance and macrophage metabolism with significantly less toxicity than natural bee venom peptide.

Reduced toxicity, maintained efficacy
Histidine-modified melittin retains anti-inflammatory power with lower cytotoxicity

What the researchers found

HMLT, a histidine-substituted melittin derivative, ameliorates SAP by restoring oxidative homeostasis and macrophage metabolism with significantly reduced cytotoxicity versus native melittin.

Why it matters

Severe acute pancreatitis kills 20-30% of patients and has no specific treatment. A detoxified version of a potent natural anti-inflammatory peptide could become the first targeted therapy.

How the study worked

Peptide design with histidine substitutions; cytotoxicity comparison; SAP models evaluating oxidative stress, macrophage metabolism, and anti-inflammatory efficacy.

What this study cannot tell us

Preclinical study; SAP models may not fully replicate human disease complexity; optimal dosing and route for human use not established.

How to read the evidence

Preclinical study with rational drug design — strong proof of concept but no human data.

When this study was published

Published in 2026, advancing venom-derived peptide therapeutics for critical illness.

The bigger picture

This demonstrates how rational peptide engineering can tame toxic natural products into potential medicines — taking evolution's powerful molecular weapons and removing their destructive side effects.

Questions still open

Could HMLT be administered intravenously during acute pancreatitis attacks in humans?
Does the histidine modification affect the peptide's mechanism or just reduce toxicity?

Common questions

How can bee venom help with pancreatitis?

Melittin from bee venom has powerful anti-inflammatory effects, but it also kills healthy cells. By modifying the peptide with histidine amino acids, researchers created a version (HMLT) that keeps the healing properties while reducing the toxic ones.

What is severe acute pancreatitis?

SAP is a life-threatening inflammation of the pancreas that can lead to organ failure and death in 20-30% of cases. Currently there is no specific drug treatment — only supportive care.

Read the original research

A Melittin-Derived Lead Compound Ameliorates Severe Acute Pancreatitis by Restoring Oxidative Homeostasis and Macrophage Metabolism.

Inflammation, 49(1), 59

View on PubMed ↗Publisher’s paper ↗

Citation

Chen, Xiaolong; Chen, Ya; Mao, Yunyun; Chen, Xinxin; Zhou, Yilin; Tu, Jianfeng. (2026). A Melittin-Derived Lead Compound Ameliorates Severe Acute Pancreatitis by Restoring Oxidative Homeostasis and Macrophage Metabolism.. Inflammation, 49(1), 59. https://doi.org/10.1007/s10753-025-02444-9