Overview
LL‑37 (Cathelicidin Antimicrobial Peptide) is a 37‑amino‑acid peptide derived from the human cathelicidin precursor protein. It is widely utilized in in vitro and laboratory‑based research involving innate immune signaling, microbial interactions, and cellular response pathways. LL‑37 is of particular interest for studies examining host‑defense mechanisms and epithelial barrier biology.
Molecular Characteristics
Peptide Type: Human cathelicidin‑derived antimicrobial peptide
Form: Lyophilized powder
Purity: ≥ 98% (HPLC)
Storage: –20°C recommended
Research Applications
LL‑37 is commonly investigated in controlled laboratory settings for:
Microbial interaction studies
Innate immune pathway analysis
Cellular response modeling under environmental stressors
Assay development involving epithelial barrier function
In vitro exploration of host‑defense peptides
(All framed as research domains, not biological outcomes.)
Mechanistic Notes (Research Context Only)
In laboratory environments, LL‑37 is studied for its ability to interact with:
Microbial membranes and biofilm structures
Innate immune signaling pathways
Cellular migration and barrier‑integrity mechanisms
These statements describe mechanistic interest, not biological effects in humans or animals.
Storage & Handling
Store lyophilized peptide at –20°C
Avoid repeated freeze–thaw cycles
Handle reconstituted solutions according to laboratory best practices
Important Research Notice
For laboratory research use only
Not for human consumption
Not a drug, food, or cosmetic
Not for veterinary or household use
No medical or therapeutic claims are made