title: Insight into the effect of the vasopressin analog desmopressin on lung colonization by mammary carcinoma cells in BALB/c mice.
abstract: OBJECTIVE
  Desmopressin (dDAVP) is a synthetic peptide analog of vasopressin with antidiuretic and hemostatic properties. Recent experimental evidence have suggested that dDAVP can inhibit metastasis formation by agonist action on V2 vasopressin receptors present in both tumor and endothelial cells. We have examined the kinetics of dDAVP effect during metastatic colonization and its potential association with hemostasis.
  
  
  METHODS
  The experimental metastasis assay was performed by injecting F3II mammary carcinoma cells into the lateral tail vein of syngeneic female BALB/c mice.
  
  
  RESULTS
  Clinically relevant doses of dDAVP (0.3 to 2 μg/kg intravenously (i.v.)) produced a dose-dependent inhibition in the formation of lung nodules when administered during the first 24 hours after F3II tumor cell injection. The hemostatic agent tranexamic acid (10 mg/kg, i.v.) had no effect on metastasis formation in the same experimental conditions, while the anticoagulant enoxaparin (1 mg/kg, subcutaneously (s.c.)) did not modify the antimetastatic action of dDAVP. In vitro, dDAVP had a strong inhibitory effect on F3II cell colony formation.
  
  
  CONCLUSIONS
  dDAVP interferes with early metastatic disease, and direct association of this effect with hemostatic mechanisms is unlikely.
authors.affiliation: Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Buenos Aires, Argentina.
authors.forename: Juan
authors.initials: J
authors.lastname: Garona
authors.affiliation: Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Buenos Aires, Argentina.
authors.forename: Marina
authors.initials: M
authors.lastname: Pifano
authors.affiliation: Pathology Service, Iriarte Hospital of Quilmes, Buenos Aires, Argentina.
authors.forename: Alejandra M
authors.initials: AM
authors.lastname: Scursoni
authors.affiliation: Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Buenos Aires, Argentina.
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Gomez
authors.affiliation: Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Buenos Aires, Argentina dfalonso@unq.edu.ar.
authors.forename: Daniel F
authors.initials: DF
authors.lastname: Alonso
authors.affiliation: Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Buenos Aires, Argentina.
authors.forename: Giselle V
authors.initials: GV
authors.lastname: Ripoll
mesh_terms: D000818:Animals; D001943:Breast Neoplasms / Q000473:pathology*; D045744:Cell Line, Tumor; D003894:Deamino Arginine Vasopressin / Q000008:administration & dosage / Q000494:pharmacology*; D004195:Disease Models, Animal; D004305:Dose-Response Relationship, Drug; D005260:Female; D008175:Lung Neoplasms / Q000188:drug therapy / Q000473:pathology / Q000556:secondary*; D051379:Mice; D008807:Mice, Inbred BALB C; D047368:Tumor Burden / Q000187:drug effects
chemical_list: D003894:Deamino Arginine Vasopressin
keywords: Desmopressin; breast cancer; hemostasis; metastasis; peptide analog; vasopressin