Résumé
The aim of this study was to clarify whether bortezomib might induce apoptosis in Burkitt's lymphoma Raji cell line and its mechanism. Different concentrations of bortezomib were used to treat Raji cells and its effects of time and dose were observed. Cell morphology was observed under light microscope; flow cytometry was used to analyze cell apoptosis; RT-PCR was used to detect the expressions of NF-kappaB and p53 gene mRNAs. The results showed that the bortezomib could inhibit Raji cell growth within a certain range of treating time and dose. Apoptosis were induced in relation to time and dose. The expression of NF-kappaB mRNA and p53 mRNA decreased after treatment with bortezomib. It is concluded that the bortezomib can induce Raji cell apoptosis, which provides a theoretical basis for clinical treatment. NF-kappaB and p53 gene are supposed to participate in the bortezomib induced apoptosis of Raji cells.
Sujets)
Humains , Apoptose , Acides boroniques , Pharmacologie , Bortézomib , Lymphome de Burkitt , Métabolisme , Anatomopathologie , Lignée cellulaire tumorale , Prolifération cellulaire , Cytométrie en flux , Facteur de transcription NF-kappa B , Métabolisme , Pyrazines , Pharmacologie , Protéine p53 suppresseur de tumeur , MétabolismeRésumé
OBJECTIVE@#To investigate the clinical features,therapy and prognosis of patients with peripheral T cell lymphoma(PTCL), and to find out the prognostic factors of the disease.@*METHODS@#The clinical data of 73 patients with PTCL were reviewed.The median pre-treatment disease course was 3 months.Fifty-five patients were males, and 18 were females, with the median age of 42 years.Five patients received the combined chemo-radio therapy, 65 received chemotherapy alone, and the other 3 patients were treated with auto hematopoietic stem cell transplantation (HSCT).@*RESULTS@#Of all the patients, the overall 3 -year and 5-year survival rates were 38% (28 /73) and 22% ( 16 /73) respectively.The survival rates decreased with the progression of the Ann Arbor stages.The survival rate of the patients with B symptom (fever, night sweat, and weight loss) or the international prognostic factors index ( IPI)>2 was lower than those of the patients without B symptom or IPI<2.The patients with the increased CA125 or D-dimer lever had the worst curative effect.@*CONCLUSION@#Peripheral T cell lymphoma is highly aggressive with poor prognosis.The clinical features,Ann Arbor staging, IPI and B symptom are important prognostic factors.CA125 and D-dimer may be also important prognostic factors.