title: Apoptosis-regulating proteins and prognosis in diffuse large B cell non-Hodgkin's lymphomas.
abstract: We evaluated the expression of apoptosis-regulating proteins (p53, Bcl-2, Bax, Bak and Mcl-1) in paraffin-embedded tissues of 33 patients with diffuse large B cell non-Hodgkin's lymphoma, and assessed the relationship of these proteins to clinical outcome and response to chemotherapy. Our results showed that p53 expression was an independent immunohistochemical parameter related to a poor prognosis in these lymphomas. Bcl-2, Bax, Bak and Mcl-1 proteins, though highly expressed in almost all cases were not associated with prognosis or response to treatment.
authors.affiliation: Hematology Hemotherapy Center, State University of Campinas, Cidade Universitária Zeferino Vaz s/n, Campinas-SP, Brazil.
authors.forename: K B B
authors.initials: KB
authors.lastname: Pagnano
authors.forename: M D
authors.initials: MD
authors.lastname: Silva
authors.forename: J
authors.initials: J
authors.lastname: Vassallo
authors.forename: F J P
authors.initials: FJ
authors.lastname: Aranha
authors.forename: Sara T O
authors.initials: ST
authors.lastname: Saad
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017209:Apoptosis / Q000235:genetics*; D015415:Biomarkers / Q000032:analysis; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D016393:Lymphoma, B-Cell / Q000737:chemistry / Q000401:mortality / Q000473:pathology; D016403:Lymphoma, Large B-Cell, Diffuse / Q000737:chemistry / Q000401:mortality* / Q000473:pathology; D008297:Male; D008565:Membrane Proteins / Q000378:metabolism; D008875:Middle Aged; D064549:Myeloid Cell Leukemia Sequence 1 Protein; D009363:Neoplasm Proteins / Q000378:metabolism*; D011379:Prognosis; D011518:Proto-Oncogene Proteins / Q000378:metabolism; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D012189:Retrospective Studies; D016019:Survival Analysis; D016896:Treatment Outcome; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism; D050998:bcl-2 Homologous Antagonist-Killer Protein; D051028:bcl-2-Associated X Protein
chemical_list: C494772:BAK1 protein, human; C494826:BAX protein, human; D015415:Biomarkers; D008565:Membrane Proteins; D064549:Myeloid Cell Leukemia Sequence 1 Protein; D009363:Neoplasm Proteins; D011518:Proto-Oncogene Proteins; D019253:Proto-Oncogene Proteins c-bcl-2; D016159:Tumor Suppressor Protein p53; D050998:bcl-2 Homologous Antagonist-Killer Protein; D051028:bcl-2-Associated X Protein