Sociedad Americana de Hirudoterapia

Leech Thrombomodulin-binding factor

Modulates the thrombin-thrombomodulin axis — implications for protein C pathway.

Preclínico / mecanísticoLast updated: 2026-05-26 · Reviewed by ASH Editorial Board
Molecular weight of Leech Thrombomodulin-binding factor 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 kDaLeech Thrombomodulin-binding …11 kDa
Molecular weight (kilodaltons) of Leech Thrombomodulin-binding factor (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
Modulates the thrombin-thrombomodulin axis — implications for protein C pathway.
Evidence level
Mechanistic discussion
Drug vs leech
Purified natural compound
Safety domains
Bleeding

Clinical translation limit

The reported thrombomodulin-binding activity is mechanistic only and does NOT establish clinical anticoagulant efficacy. No FDA-approved derivative exists; distinct from recombinant human thrombomodulin (ART-123/thrombomodulin alfa) developed by Asahi Kasei for DIC.

Molecular Profile

Category
Anticoagulant
Evidence tier
Preclinical
Molecular weight
11,000 Da
Source species
Hirudo medicinalis
Leech Thrombomodulin-binding factor molecular structure

Biological Targets

  • thrombomodulin / thrombin / Protein C axis

External Resources

    Related Anticoagulant Compounds

    Este sitio web proporciona información educativa y no constituye consejo médico, diagnóstico ni recomendaciones de tratamiento. La terapia con sanguijuelas medicinales conlleva riesgos clínicamente significativos y debe ser realizada únicamente por profesionales calificados bajo protocolos aprobados institucionalmente. La autorización 510(k) de la FDA para sanguijuelas medicinales se limita a indicaciones específicas; las discusiones sobre uso investigativo y fuera de indicación se señalan correspondientemente. Para orientación médica específica, consulte a un profesional de salud calificado.