Original Article

Updates in Surgery

, Volume 65, Issue 1, pp 53-57

First online:

Tryptase-positive mast cells and angiogenesis in keloids: a new possible post-surgical target for prevention

  • Michele AmmendolaAffiliated withChair of Clinical Surgery, University of Catanzaro “Magna Graecia” Medical School Email author 
  • , Valeria ZuccalàAffiliated withDepartment of Pathology, University of Catanzaro Medical School
  • , Rosa PatrunoAffiliated withSurgery Unit, National Cancer Institute Giovanni Paolo II
  • , Emilio RussoAffiliated withChair of Pharmacology, Department of Health Science, University of Catanzaro Medical School
  • , Maria LuposellaAffiliated withChair of Cardiovascular Disease, University of Catanzaro Medical School
  • , Andrea AmorosiAffiliated withDepartment of Pathology, University of Catanzaro Medical School
  • , Giuseppina VescioAffiliated withChair of Clinical Surgery, University of Catanzaro “Magna Graecia” Medical School
  • , Giuseppe SammarcoAffiliated withChair of Clinical Surgery, University of Catanzaro “Magna Graecia” Medical School
  • , Severino MontemurroAffiliated withSurgery Unit, National Cancer Institute Giovanni Paolo II
    • , Giovambattista De SarroAffiliated withChair of Pharmacology, Department of Health Science, University of Catanzaro Medical School
    • , Rosario SaccoAffiliated withChair of Clinical Surgery, University of Catanzaro “Magna Graecia” Medical School
    • , Girolamo RanieriAffiliated withInterventional Radiology Unit with Integrated Section of Medical Oncology, National Cancer Institute, Giovanni Paolo II

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Abstract

Literature data indicate that mast cells (MCs) are involved in angiogenesis through the release of several pro-angiogenetic factors among which tryptase, a serine protease stored in MC granules, is one of the most active. However, no data are available concerning the role of MCs during keloids’ angiogenesis. In this study, we evaluated the correlations of the number of MCs positive to tryptase (MCDPT) and microvascular density (MVD) within a series of 15 keloids and 10 normotrophic scars, by means of immunohistochemistry and image analysis methods. Data demonstrated a significant difference of MVD and MCDPT between keloids and normotrophic scars and a significant correlation between MVD and MCDPT in keloids. Our results suggest that tryptase-positive MCs might play a key role in keloids’ angiogenesis. In this context, several tryptase inhibitors might be clinically evaluated as a possible new anti-angiogenetic approach to prevent keloid formation after surgery.

Keywords

Angiogenesis Tryptase Mast cells Keloids Treatment