Journal
JOURNAL OF CANCER RESEARCH AND CLINICAL ONCOLOGY
Volume 128, Issue 2, Pages 103-110Publisher
SPRINGER-VERLAG
DOI: 10.1007/s00432-001-0304-3
Keywords
apoptosis; cutaneous T cell lymphoma; liposomal doxorubicin; galectin; glycohistochemistry
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Owing to their relevance for growth regulation and cell adhesion monitoring the expression of galectins (endogenous beta-galactoside-binding lectins) and their binding sites has relevance for tumor biology. Using galectin-type-specific reagents (non-crossreactive antibodies for proto-type galectin-1, chimera-type galectin-3 and tandem-repeat-type galectins-4 and -8, and labeled galectins-1, -3, and -4) we determined galectin expression in cutaneous T cell lymphomas (CTCL) and controls. In addition to commonly studied galectins-1 and -3, tandem-repeat-type galectins could be detected, i.e., galectin-8 in six from 15 cases and galectin-4 in one of 15 cases. In view of relevant ligands such as bcl-2 or integrins the presence of galectins-3 and -8 seems to be possibly related to loss of proliferation control and change in cell adhesion properties that are involved in clonal expansion and epidermal spread of malignant T cell clones. Successful chemotherapy of CTCL alters galectin expression selectively as shown for liposomal doxorubicin.
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