Vascular endothelial growth factor: Expression in human vulvar neoplastic and nonneoplastic tissues

Nicola Doldi, Massimo Origoni, Marianna Bassan, Davide Ferrari, Maria Rossi, Augusto Ferrari

Research output: Contribution to journalArticle

Abstract

OBJECTIVE: To investigate the expression of vascular endothelial growth factor (VEGF) in human vulvar neoplastic and nonneoplastic tissues. STUDY DESIGN: Specimens were collected at the Vulvovaginal Clinic, Department of Obstetrics and Gynecology, University of Milan. Human vulvar neoplastic and nonneoplastic tissues were dissected and frozen immediately at -80°C until RNA extraction. Five micrograms of total RNA from each sample was denatured and transferred to nitrocellulose and nylon membranes for dot blot hybridization with labeled [α- 32P]dCTP cDNA prove for VEGF. RESULTS: Messenger RNA encoding VEGF was detected in all tissues studied. VEGF mRNA was highly expressed in vulvar epithelial neoplasia (VIN) associated with human papillomavirus infection and minimally expressed in invasive squamous cell carcinoma of the vulva. Nonneoplastic lesions, such as chronic inflammation, lichen sclerosis, lichen planus, squamous hyperplasia and squamous papilloma, were also assessed, and none has a significant difference in VEGF mRNA expression. CONCLUSION: The prominence of VEGF mRNA levels in particular cases of VIN demonstrated that VEGF may be involved in promoting a new vascular network as a basic condition for the progression or at least self-maintenance of those lesions.

Original languageEnglish
Pages (from-to)844-848
Number of pages5
JournalJournal of Reproductive Medicine for the Obstetrician and Gynecologist
Volume41
Issue number11
Publication statusPublished - Nov 1996

Keywords

  • growth factors
  • vascular endothelial growth factor
  • vulvar neoplasms

ASJC Scopus subject areas

  • Obstetrics and Gynaecology
  • Reproductive Medicine

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