title: High expression of cyclin B1 predicts a favorable outcome in patients with follicular lymphoma.
abstract: Substantial research has been dedicated to the study of the relationship between genetic mechanisms regulating cell functions in tumors and how those tumors respond to various treatment regimens. Because these mechanisms are still not well understood, we have chosen to study the genetic makeup of 57 tumor samples from patients with follicular lymphoma (FL). Our goal was to develop a prognostic tool, which can be used as an aid in determining FL patients with tumors genetically predisposed to a successful treatment with the CHOP (cyclophosphamide, vincristine, doxorubicin, prednisone) regimen. To select relevant genes, high-density oligonucleotide arrays were used. There were 14 genes highly expressed in FL patients that responded well to CHOP chemotherapy, and 11 of these were involved in G2/M transition of the cell cycle, in mitosis, or in DNA modulation. A high expression of CCNB1 (cyclin B1), CDC2, CDKN3A, CKS1B, ANP32E, and KIAA0101, but not of the proliferation-related antigen Ki-67, was associated with better survival rate in a univariate analysis. CCNB1 expression had an independent prognostic value when included in a multivariate analysis together with the 5 parameters of the follicular lymphoma international prognostic index.
authors.affiliation: Department of Molecular Medicine, Division of Hematology, Karolinska University Hospital and Karolinska Institutet, SE-171 76 Stockholm, Sweden.
authors.forename: Erik
authors.initials: E
authors.lastname: Björck
authors.forename: Sara
authors.initials: S
authors.lastname: Ek
authors.forename: Ola
authors.initials: O
authors.lastname: Landgren
authors.forename: Mats
authors.initials: M
authors.lastname: Jerkeman
authors.forename: Mats
authors.initials: M
authors.lastname: Ehinger
authors.forename: Magnus
authors.initials: M
authors.lastname: Björkholm
authors.forename: Carl A K
authors.initials: CA
authors.lastname: Borrebaeck
authors.forename: Anna
authors.initials: A
authors.lastname: Porwit-MacDonald
authors.forename: Magnus
authors.initials: M
authors.lastname: Nordenskjöld
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000951:Antigens, Neoplasm / Q000235:genetics; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage; D014408:Biomarkers, Tumor / Q000235:genetics*; D002352:Carrier Proteins / Q000235:genetics; D015331:Cohort Studies; D019925:Cyclin A / Q000235:genetics; D019926:Cyclin B / Q000235:genetics*; D056744:Cyclin B1; D003520:Cyclophosphamide / Q000008:administration & dosage; D004250:DNA Topoisomerases, Type II / Q000235:genetics; D004268:DNA-Binding Proteins / Q000235:genetics; D004317:Doxorubicin / Q000008:administration & dosage; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D005820:Genetic Testing; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D019394:Ki-67 Antigen / Q000235:genetics; D008224:Lymphoma, Follicular / Q000175:diagnosis* / Q000188:drug therapy / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D020411:Oligonucleotide Array Sequence Analysis; D011237:Predictive Value of Tests; D011241:Prednisone / Q000008:administration & dosage; D011379:Prognosis; D014750:Vincristine / Q000008:administration & dosage
chemical_list: D000951:Antigens, Neoplasm; D014408:Biomarkers, Tumor; C534699:CCNB1 protein, human; D002352:Carrier Proteins; D019925:Cyclin A; D019926:Cyclin B; D056744:Cyclin B1; D004268:DNA-Binding Proteins; D019394:Ki-67 Antigen; C425208:PCLAF protein, human; D014750:Vincristine; D004317:Doxorubicin; D003520:Cyclophosphamide; D004250:DNA Topoisomerases, Type II; D011241:Prednisone