title: [Tumor proliferation, MDR phenotype and tumor associated t-lymphocytes in non-Hodgkin's lymphomas].
abstract: In this study we examined the P170-expression (mdr-phenotype) in 42 non-Hodgkin's Lymphomas with variant entities immunohistochemically with the mab JSB1. The mdr-phenotype was related to the tumor proliferation as measured by Ki67-expression and AgNOR numbers. Furthermore the mdr-phenotype was related to the tumor associated T-lymphocytes. The mdr-phenotype showed no relation to histological type and the proliferation of the tumor. There was a positive correlation between the mdr-phenotype and CD2-reactive lymphocytes. There was also a significant positive correlation between CD4-reactive lymphocytes and the mean number of AgNOR's. Possibly P170-expression and proliferation of the tumor cells have a lymphotactic effect on T-lymphocytes. The latter could promote tumor progression by means of paracrine mechanisms.
mesh_terms: D015704:CD4 Antigens / Q000032:analysis; D002455:Cell Division; D004351:Drug Resistance / Q000235:genetics*; D006023:Glycoproteins / Q000235:genetics*; D006801:Humans; D019394:Ki-67 Antigen; D008198:Lymph Nodes / Q000276:immunology / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000235:genetics* / Q000276:immunology / Q000473:pathology*; D009363:Neoplasm Proteins / Q000032:analysis; D009687:Nuclear Proteins / Q000032:analysis; D010641:Phenotype; D013601:T-Lymphocytes / Q000276:immunology / Q000473:pathology
chemical_list: D015704:CD4 Antigens; D006023:Glycoproteins; D019394:Ki-67 Antigen; D009363:Neoplasm Proteins; D009687:Nuclear Proteins
vernacular_title: Tumorproliferation, MDR-Phänotyp und tumorassoziierte T-Lymphozyten in Non Hodgkin-Lymphomen.