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Scientific article
English

Role of beta 1-integrins in epidermotropism of malignant T cells

Published inThe American journal of pathology, vol. 141, no. 4, p. 855-860
Publication date1992
Abstract

To better understand the molecular mechanisms of epidermotropism, we immunohistochemically analyzed the expression pattern of adhesion molecules belonging to the integrin and immunoglobulin superfamilies in cases of mycosis fungoides (MF) (n = 15), pleomorphic T cell lymphoma (n = 10), and high-grade T cell lymphoma (n = 7). The cutaneous T cell lymphomas (CTCLs) investigated were categorized into cases with or without epidermotropism. Focal neoexpression of ICAM-1 on keratinocytes was restricted to epidermotropic lymphomas. Both LFA-1 and LFA-3 were expressed on infiltrating cells in all cases investigated. In contrast, beta 1-integrins showed differential expression, most prominent in the case of VLA-1 and VLA-6: These molecules were present on infiltrating cells in most cases with epidermotropic MF and absent in most other CTCLs. We conclude that the phenomenon of epidermotropism might involve different sets of adhesion molecules in different entities of CTCL, with VLA-1 being the most influential beta 1-integrin in the case of MF.

Keywords
  • Antibodies, Monoclonal
  • Antigens, CD29
  • Cell Adhesion Molecules/metabolism
  • Humans
  • Immunohistochemistry
  • Integrins/*physiology
  • Intercellular Adhesion Molecule-1
  • Lymphoma, T-Cell/*metabolism
  • Mycosis Fungoides/*metabolism
  • Receptors, Very Late Antigen/metabolism
  • Skin/*metabolism
  • Skin Neoplasms/*metabolism
Affiliation Not a UNIGE publication
Citation (ISO format)
STERRY, Wolfram et al. Role of beta 1-integrins in epidermotropism of malignant T cells. In: The American journal of pathology, 1992, vol. 141, n° 4, p. 855–860.
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ISSN of the journal0002-9440
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