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Limited human evidenceHuman cathelicidin antimicrobial peptide

LL-37

LL-37 is a human cathelicidin peptide involved in innate immune biology. Its naturally occurring role does not establish the safety or efficacy of administering LL-37 as a drug.

Also indexed as: Cathelicidin antimicrobial peptide

A clear starting point

LL-37 is a human cathelicidin peptide involved in innate immune biology. Its naturally occurring role does not establish the safety or efficacy of administering LL-37 as a drug.

Systems mapping shows biological relevance, not a treatment recommendation or a patient CPI score.

No validated chemical structure is displayed in this edition.

How it works

Cathelicidin / innate immunity

LL-37 is a human cathelicidin peptide involved in innate immune biology. Its naturally occurring role does not establish the safety or efficacy of administering LL-37 as a drug.

Targets & processes
Cathelicidin / innate immunity
Systems & tissues
See the pathway description; category links describe research relevance, not demonstrated treatment effects.

What does the evidence show?

Antimicrobial defense, wound biology and immune signaling.

What this does not establish

The linked review is background biology, not proof of systemic infection treatment. Limited clinical wound research cannot validate unrelated systemic uses.

Citation metadata from PubMed, a service of the U.S. National Library of Medicine, NIH. A citation match is not a guarantee of study quality. Abstracts are not full-text reviews.

Safety is a separate question

FDA cites inadequate human safety information and nonclinical reproductive and protumorigenic concerns in some tissues. Inflammatory effects are context-dependent.

Contraindications & cautions

Not an exhaustive contraindication review. FDA cites inadequate human safety information and nonclinical reproductive and protumorigenic concerns in some tissues. Inflammatory effects are context-dependent.

Medication & supplement interactions

Interaction information is incomplete. FDA cites inadequate human safety information and nonclinical reproductive and protumorigenic concerns in some tissues. Inflammatory effects are context-dependent.

Regulatory status · United States

Not FDA-approved. No FDA-approved finished drug for this molecule is identified in this edition. Investigational use, published research or compounding does not establish FDA approval.

Read the official source

This is not an exhaustive safety list. Regulatory status varies by jurisdiction and product; investigational use is not approval.

Make the science interactive

A dedicated lesson has not been published for this ingredient yet. Explore the cited profile or ask the instructor.

View the preserved original research profile, glossary and reading trails

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Basic level · Published sources only · AI evidence check

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All medications and therapies discussed are for educational purposes only. Prescriptions are determined independently by the licensed clinician following a medical evaluation. There is no guarantee that any medication or peptide will be prescribed.
IW Interactive Learning Engine · Adapted from stable OpenMAIC v1.2.1. Open-source license
Education only. Confidence labels are not formal systematic evidence grades. No patient record is used.

Education, not a prescription. Research summaries are not medical advice, dosing instructions, or an offer to sell. Mechanistic findings do not establish clinical effectiveness. US regulatory status is product- and indication-specific and may change. Discuss health decisions with a licensed clinician.