title: Lymphatic vessel invasion detected by the D2-40 monoclonal antibody is an independent prognostic factor in node-negative esophageal squamous cell carcinoma.
abstract: OBJECTIVE
  D2-40 staining has been reported to be useful for both identifying lymphatic vessel invasion (LVI) and counting lymphatic vessel density (LVD) in various cancers. The aim of this study was to clarify the prognostic significance of D2-40 staining in patients with esophageal squamous cell carcinoma (ESCC).
  
  
  METHODS
  A total of 159 consecutive patients with ESCC who underwent an esophagectomy with lymph node dissection were eligible. LVI was diagnosed by both hematoxylin-eosin (LVI-HE) and D2-40 staining (LVI-D2-40) in the largest central sections of the entire tumors, while both the intratumoral and peritumoral LVD were counted by D2-40 staining. The correlation between the prognosis and clinicopathological factors was investigated.
  
  
  RESULTS
  An univariate analysis revealed that tumor invasion beyond the muscularis propria, lymph node metastasis (LNM), LVI-HE, LVI-D2-40, high intratumoral LVD, and blood vessel invasion correlated with worse patients' prognosis (P < 0.05). A multivariate analysis revealed LNM to be the only independent prognostic factor in all cases (P = 0.0083). On the other hand, when the prognostic factors of 83 patients without LNM were investigated, LVI-D2-40 was revealed to be the only independent prognostic factor (P = 0.048).
  
  
  CONCLUSIONS
  LVI detected by D2-40 staining was an independent prognostic factor in patients with node-negative ESCC.
authors.affiliation: Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Honjo Kumamoto-City, Kumamoto, Japan.
authors.forename: Yu
authors.initials: Y
authors.lastname: Imamura
authors.forename: Masayuki
authors.initials: M
authors.lastname: Watanabe
authors.forename: Yohei
authors.initials: Y
authors.lastname: Nagai
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Baba
authors.forename: Kotaro
authors.initials: K
authors.lastname: Hirashima
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Karashima
authors.forename: Masaaki
authors.initials: M
authors.lastname: Iwatsuki
authors.forename: Naoya
authors.initials: N
authors.lastname: Yoshida
authors.forename: Koichi
authors.initials: K
authors.lastname: Kinoshita
authors.forename: Junji
authors.initials: J
authors.lastname: Kurashige
authors.forename: Ken-Ichi
authors.initials: K
authors.lastname: Iyama
authors.forename: Hideo
authors.initials: H
authors.lastname: Baba
mesh_terms: D000368:Aged; D058846:Antibodies, Monoclonal, Murine-Derived; D014408:Biomarkers, Tumor; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000473:pathology*; D004938:Esophageal Neoplasms / Q000401:mortality / Q000473:pathology*; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis / Q000175:diagnosis*; D042601:Lymphatic Vessels / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D013194:Staining and Labeling
chemical_list: D058846:Antibodies, Monoclonal, Murine-Derived; D014408:Biomarkers, Tumor; C500987:monoclonal antibody D2-40