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Neither expression of VEGF-C/D nor lymph vessel density supports lymphatic invasion as the mechanism responsible for local spread of recurrent salivary pleomorphic adenoma

Result description

Abstract Recent research suggests that multinodular recurrent pleomorphic adenoma (PA) might result from cell migration through lymphatics. Lymphangiogenesis in malignancies is mediated by vascular endothelial growth factors C and D (VEGF-C/D).We studiedthe expression of VEGF-C/D in PA by immunohistochemistry as well as lymphatic vessel density (LVD). In 6 non-recurrent, 4 primary-to-recur, and 10 recurrent PAs, VEGF-C/D expression was assessed by immunohistochemistry. Staining was scored in terms of staining intensity (0 = absent to 3 = strong), and the percentage of positive tumor cells (scored as 0 (0-19 %), 1 (20-39 %), 2 (40-50 %), and 3 (60-100 %)) and a sum score were calculated. Intra- and peritumoral LVD was assessed by counting of LV after immunostaining, using the D2-40 antibody. All but one sample were VEGF-C negative. The differences in VEGF-D expression between non-recurrent, primary-torecur, and recurrent PAs were not significant (p }0.05). VEGF-D expression did not cor

Keywords

Vascular endothelial growth factorSalivary glandRecurrencePleomorphic adenomaLymphangiogenesis

The result's identifiers

Alternative languages

  • Result language

    angličtina

  • Original language name

    Neither expression of VEGF-C/D nor lymph vessel density supports lymphatic invasion as the mechanism responsible for local spread of recurrent salivary pleomorphic adenoma

  • Original language description

    Abstract Recent research suggests that multinodular recurrent pleomorphic adenoma (PA) might result from cell migration through lymphatics. Lymphangiogenesis in malignancies is mediated by vascular endothelial growth factors C and D (VEGF-C/D).We studiedthe expression of VEGF-C/D in PA by immunohistochemistry as well as lymphatic vessel density (LVD). In 6 non-recurrent, 4 primary-to-recur, and 10 recurrent PAs, VEGF-C/D expression was assessed by immunohistochemistry. Staining was scored in terms of staining intensity (0 = absent to 3 = strong), and the percentage of positive tumor cells (scored as 0 (0-19 %), 1 (20-39 %), 2 (40-50 %), and 3 (60-100 %)) and a sum score were calculated. Intra- and peritumoral LVD was assessed by counting of LV after immunostaining, using the D2-40 antibody. All but one sample were VEGF-C negative. The differences in VEGF-D expression between non-recurrent, primary-torecur, and recurrent PAs were not significant (p }0.05). VEGF-D expression did not cor

  • Czech name

  • Czech description

Classification

  • Type

    Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    FF - ENT (ie. ear, nose, throat), ophthalmology, dentistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Others

  • Publication year

    2013

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Virchows Archiv

  • ISSN

    0945-6317

  • e-ISSN

  • Volume of the periodical

    464

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    6

  • Pages from-to

    29-34

  • UT code for WoS article

  • EID of the result in the Scopus database