title: Pathobiology of CD30+ cutaneous T-cell lymphomas.
abstract: CD30+ cutaneous lymphoproliferative disorders include lymphomatoid papulosis (LyP) and anaplastic large cell lymphoma (ALCL). LyP is associated with development of lymphoma in nearly 20% of patients. Herein is reviewed the clonal relationship of LyP to malignant lymphoma, the concept of a common stem cell for LyP and associated lymphomas, and the role of genetic instability in lymphomagenesis. The possible role of the CD30+ cell as a regulatory T-cell is introduced and a model for progression of LyP to ALCL is illustrated.
authors.affiliation: Laboratory Medicine, Yamins 309, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA. mkadin@bidmc.harvard.edu
authors.forename: Marshall E
authors.initials: ME
authors.lastname: Kadin
mesh_terms: D001483:Base Sequence; D014408:Biomarkers, Tumor / Q000378:metabolism; D002999:Clone Cells; D004273:DNA, Neoplasm / Q000032:analysis; D042822:Genomic Instability; D006801:Humans; D017730:Ki-1 Antigen / Q000378:metabolism*; D016410:Lymphoma, T-Cell, Cutaneous / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D008969:Molecular Sequence Data; D012878:Skin Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D004273:DNA, Neoplasm; D017730:Ki-1 Antigen