# LL-37

> Human cathelicidin peptide with antimicrobial and immune-modulating activity.

Source: https://peptides.cafe/peptide/ll-37
Category: Immune · Antimicrobial
Tag: Immune · Antimicrobial

## Mechanism
The only human cathelicidin antimicrobial peptide. Research demonstrates broad antimicrobial activity against bacteria, viruses, and fungi, plus immunomodulatory effects on neutrophils, macrophages, and wound healing.

## Research areas
- Chronic biofilm infections
- Wound healing and dermatology
- Innate immune modulation

## Common research protocols
- Local and subcutaneous research: Investigational use in chronic infection and wound research.

## Study summaries
- "LL-37: a multifunctional host-defense peptide" — Frontiers in Immunology (2020): Comprehensive review of antimicrobial and immunomodulatory roles.

## Considerations
- Not FDA-approved.
- Pro-inflammatory effects possible at higher doses.

## Disclaimer
Educational content only. Not medical advice, diagnosis, or treatment. Most research peptides are not FDA-approved for human therapeutic use. Consult a licensed clinician before any use.