Sociedad Americana de Hirudoterapia

WP-DLRWM

Five-residue intestinally absorbable anticoagulant peptide from Whitmania pigra trypsin hydrolysate — Fang 2025 peptidomics + everted-gut-sac validation.

Preclínico / mecanísticoLast updated: 2026-05-27 · Reviewed by ASH Editorial Board
Molecular weight of WP-DLRWM compared with other characterized leech-derived compoundsHementerin80 kDaHementin80 kDaHementin-Like Protein (HLP-1)80 kDaLeech Collagenase70 kDaHaemadipsa yanyuanensis Progr…70 kDaLeech Apyrase67 kDaCalin65 kDaHyaluronidase60 kDaAntithrombin III binding prot…58 kDaCollagenolytic Fibrinolysin55 kDaLeech Thrombospondin-Like Pro…50 kDaWP-DLRWM0.7 kDa
Molecular weight (kilodaltons) of WP-DLRWM (highlighted) alongside other characterized leech salivary compounds. Smaller proteins/peptides generally diffuse and act faster.

Mechanistic Evidence Box

Preclinical / mechanistic
Page type
Compound profile
Evidence type
Five-residue intestinally absorbable anticoagulant peptide from Whitmania pigra trypsin hydrolysate — Fang 2025 peptidomics + everted-gut-sac validation.
Evidence level
In vitro
Drug vs leech
Synthetic analog
Safety domains
Bleeding

Clinical translation limit

DLRWM's in vitro / ex vivo anticoagulant activity does NOT establish clinical efficacy. No FDA-approved derivative exists; bioavailability inference from the everted-gut-sac model does not equate to human oral pharmacokinetic validation.

Molecular Profile

Category
Anticoagulant
Evidence tier
Preclinical
Molecular weight
720 Da
Source species
Whitmania pigra
Discovered
2025 · Fang KX et al.
WP-DLRWM molecular structure

Biological Targets

  • coagulation cascade (Critic-G1 weighted multi-parameter anticoagulation model)

Key Citations

  1. Fang KX et al. (2025), Molecules · PMID 40807359

External Resources

    Related Anticoagulant Compounds

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