Abstract:
:Tumor cell (TC) contamination of stem cell products can contribute to relapse after high dose chemotherapy and stem cell rescue. A new purging technology using replication-deficient recombinant adenovirus (Adv) containing the p53 tumor suppressor gene (Adv-p53) has been suggested to reduce tumor contamination of autologous stem cell product. We demonstrate herein a safe and effective Adv-p53 purging procedure using four human breast cancer TC lines. Multiple parameters need to be achieved to successfully purge stem cell products, including a high cell:virus ratio, a small incubation volume, a long incubation time and 37 degrees C rather than room temperature. These parameters are all interrelated and equally important for the inhibition of TC clonogenic growth. In our studies, we also observed that Adv could nonspecifically inhibit TC clonogenic growth, although Adv-p53 treatment led to a significantly greater inhibition of clonogenic growth by cells expressing mutated p53. The presence of peripheral stem cell (PSC) products was found to decrease the effect of Adv-p53 on TC clonogenic growth, suggesting that PSC products could compete with TC for infection by recombinant Adv. However, X-Gal staining after incubation with Adv containing-galactosidase demonstrated that PSC products were 2, 000-fold more resistant to Adv infection than TC. We conclude that a 4-hour incubation of stem cell products (2 x 10(8)/ml) with 4 x 10(11) Adv-p53 particles is sufficient to completely purge TC with no effect on hematopoietic cell function.
journal_name
Acta Haematoljournal_title
Acta haematologicaauthors
Hirai M,Kelsey LS,Maneval DC,Vaillancourt M,Talmadge JEdoi
10.1159/000040931subject
Has Abstractpub_date
1999-01-01 00:00:00pages
97-105issue
2eissn
0001-5792issn
1421-9662pii
40931journal_volume
101pub_type
杂志文章abstract::10 patients with paroxysmal nocturnal hemoglobinuria were studied taking 109 normal subjects of the Cuban population as control group. 26 HLA antigens corresponding to loci A and B were studied in both groups. Phenotypical frequency of both groups were compared. No statistically significant increase was found for any ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207369
更新日期:1980-01-01 00:00:00
abstract::In a group of 56 patients with acute leukaemia, the relation between leukaemic cell motility and peripheral leukaemic cell count, degree of organomegaly, maturation and FAB classification was investigated. Cell motility was studied by means of directly observed motility and scoring of handmirror cells and anti-HLA-cap...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000205595
更新日期:1988-01-01 00:00:00
abstract::The thrombogenicity of prothrombin complex concentrates (PCCs) has been known as a risk factor since their first clinical use about 30 years ago. The development of in vivo models to define the thrombogenic components in PCCs was instrumental in providing a logical basis for selecting in vitro assays to screen for the...
journal_title:Acta haematologica
pub_type: 杂志文章,评审
doi:10.1159/000204039
更新日期:1995-01-01 00:00:00
abstract::A comparative study of karyotypes, hematological variables and neutrophil alkaline phosphatase (NAP) was performed in 106 parents (53 couples) of children with free, homogeneous trisomy 21 and of 220 parents (110 couples) of normal children. In the parents of trisomy 21 children we found a significant increase of the ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207208
更新日期:1980-01-01 00:00:00
abstract::This report describes a case of hairy cell leukemia (HCL) occurring with autoimmune chronic active hepatitis (CAH). A 74-year-old woman presented with typical clinical and histologic features of HCL for which splenectomy was performed. 2 years later she developed abnormal liver function tests due to auto-immune CAH. T...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206291
更新日期:1985-01-01 00:00:00
abstract::The expression of the enzyme marker terminal deoxynucleotidyl transferase (TdT) was examined by immunofluorescence assay in the cells from 333 cases with various types and subtypes of leukemia or lymphoma. More than 90% of cALL and T-ALL, 70% of Null-ALL and 80% of pre-B-ALL were TdT-positive. One case in the commonly...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206072
更新日期:1986-01-01 00:00:00
abstract::Iron overload due to regular transfusions of packed red cells can cause multiple organ damage. Iron chelation therapy (ICT) is important in patients with aplastic anemia (AA) who require blood transfusions as supportive management. With the introduction of the oral iron chelator deferasirox, ICT has become more widely...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000342772
更新日期:2013-01-01 00:00:00
abstract::The case history of a 71-year-old woman with three episodes of a microangiopathic hemolytic anemia over a 22-year span is detailed. During the last episode a possible response of her thrombotic thrombocytopenic purpura (TTP)-like syndrome to the administration of intravenous immunoglobulin is documented. In retrospect...
journal_title:Acta haematologica
pub_type: 杂志文章,评审
doi:10.1159/000205377
更新日期:1989-01-01 00:00:00
abstract::Acute megakaryoblastic leukemia is uncommon and comprises about 5% of acute nonlymphoid leukemias in the French-American-British classification. Cell lines from such leukemias are relatively rare with only about 8 reported in the literature. We established a cell line from a case of acute megakaryoblastic leukemia ari...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000203557
更新日期:1997-01-01 00:00:00
abstract::The clinical pattern of haemolysis associated with Donath-Landsteiner antibodies has undergone a change over the years. In the current study 13 patients developed the acute form of the disease whilst only 1 presented with the classical picture of chronic paroxysmal cold haemoglobinuria. The acute illness typically occ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206992
更新日期:1982-01-01 00:00:00
abstract::The effect of 3 different detergents (Triton X-100, Lubrol WX and Nonidet) on brain thromboplastin was examined and compared with the solubilisation due to deoxycholate. The effect of deoxycholate is superior over that of the other examined detergents. Deoxycholate extracts thromboplastic activity from brain tissue to...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000208068
更新日期:1975-01-01 00:00:00
abstract::Cardiac scintigraphy has been performed in 60 beta-thalassaemia major patients aged 8-35 years who received regular blood transfusions and subcutaneous desferrioxamine (DFX) chelation. Fifty-seven showed no clinical, radiological or electrocardiographic evidence of heart disease and 3 had clinically apparent cardiac f...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000205046
更新日期:1990-01-01 00:00:00
abstract::Platelet aggregation induced in vitro with ADP, adrenalin and ristocetin was tested in 7 patients with megakaryoblastic leukemia (MKL). All patients had normal or high platelet counts and presented with hemorrhagic diathesis including purpura ecchymosis and epistaxis. Platelet morphology was grossly abnormal and elect...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206366
更新日期:1984-01-01 00:00:00
abstract::Pleural effusion in chronic lymphocytic leukemia (CLL) is a relatively rare phenomenon. We report a case of a pleural effusion associated with B-cell CLL but with predominantly reactive T lymphocytes in the effusion. A cell surface phenotype study showed that T lymphocytes predominated in the pleural effusion, althoug...
journal_title:Acta haematologica
pub_type: 杂志文章,评审
doi:10.1159/000203713
更新日期:1996-01-01 00:00:00
abstract::Chromosomal aberrations in a case of atypic myeloproliferative syndrome are reported. The analysis was carried out on short-term cultures of sternal bone marrow with the ASG and fluorescence method. 90% of the metaphases studied showed pseudoliploidy: one of the chromosomes 12 was missing and one submedian marker chro...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000208052
更新日期:1975-01-01 00:00:00
abstract::The goal of the study was to investigate changes in expression of selected growth factors tentatively involved in regeneration of haematopoietic tissues (bone marrow and spleen) following cyclophosphamide (CY) damage in the mouse. The bone marrow (BM) and spleen were examined separately, since the regenerating pattern...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000068490
更新日期:2003-01-01 00:00:00
abstract::Eleven patients with acute myeloid leukaemia (AML) in first complete remission (CR) were treated with alfa-2a-interferon (for short 'interferon') maintenance therapy, at a dose of 3 MU twice to thrice weekly subcutaneously. Adjustments were made to maintain neutrophil counts > 1 x 10(9)/l and platelet counts > 100 x 1...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000204473
更新日期:1993-01-01 00:00:00
abstract::Bone marrow samples of 28 individuals with clinically benign and of 41 patients with malignant monoclonal gammopathy were analyzed for the total number of lymphoplasmocellular elements containing cytoplasmic immunoglobulins and for the monoclonal fraction of these cells. Monoclonal immunoglobulin components were deter...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000207709
更新日期:1978-01-01 00:00:00
abstract::The detection of cellular antigens in bone marrow sections depends on the method of embedding, the nature of antigen and antibody, antigen retrieval techniques and the sensitivity of the immunohistochemical method. This study evaluated a fluorescyl-tyramide-enhanced immunostaining method on methyl-methacrylate-embedde...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000097458
更新日期:2007-01-01 00:00:00
abstract::In a previous study, we evaluated efficacy of repeated antilymphocyte globulin (ALG) treatment for patients with severe aplastic anemia not responding to an initial ALG treatment or relapsing after initial response to ALG. We now searched in the same cohort of patients for differences between patients who responded to...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000041005
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:Despite encouraging reports concerning the declining prevalence of iron deficiency, this easily preventable disorder is still an existing problem in presumably developed regions. OBJECTIVE:To evaluate the prevalence of iron deficiency and relevant anemia in children residing in Northern Greece and to study ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000098273
更新日期:2007-01-01 00:00:00
abstract::Thalidomide acts on the microenvironment of myelodysplastic syndromes (MDS) by influencing cytokine networks, and growing evidence supports thalidomide's usefulness in the management of haematological malignancies, such as MDS. The European Collaboration Group on Myelofibrosis with Myeloid Metaplasia reviewed patients...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000087042
更新日期:2005-01-01 00:00:00
abstract::A 12-year-old male of Chinese ancestry had life-long hemolytic anemia attributed to alpha-thalassemia. Restriction endonuclease mapping of his DNA revealed that in reality, he had three alpha-globin loci, but he was homozygous for pyruvate kinase deficiency. The new pyruvate kinase variant carried by this patient was ...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206830
更新日期:1983-01-01 00:00:00
abstract::Although multiple myeloma (MM) remains an incurable disease, its treatment has improved over the past decade. This improvement has been at least in part due to the introduction of novel antimyeloma agents with new mechanisms of action, including those that target both myeloma cells and the tumor microenvironment, with...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000094682
更新日期:2006-01-01 00:00:00
abstract::A 28-year-old woman with Bence-Jones multiple myeloma (MM) presented with several osteolytic lesions and a massive bone marrow infiltration with mature plasmocytes. After 6 cycles of chemotherapy with melphalan and prednisone, the patient, in apparent clinical remission, underwent allogeneic bone marrow transplantatio...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000205969
更新日期:1987-01-01 00:00:00
abstract::A 26-year-old female with Ki-1-positive large-cell anaplastic lymphoma is reported. The neoplastic cells were phenotypically and genotypically of T cell origin. Initially, neoplastic cells invaded the skin and lymph nodes, and then invaded the sternal and vertebral bones, ribs and the iliopsoas muscle. Central nervous...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000204672
更新日期:1992-01-01 00:00:00
abstract::Neoplastic cells of 18 patients with multiple myeloma were studied using a panel of 6 monoclonal antibodies to B cells and monospecific antisera against the light chain types of immunoglobulin. OKT10 bound to the myeloma cells of all the patients, although only a small percentage of the cells reacted in 3 instances. M...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206423
更新日期:1984-01-01 00:00:00
abstract::A hemophilia B patient, seropositive for HIV antibodies since 1984, came to us in March 1989 with a severe necrotizing lesion of the nose. It was an erythematous lesion and looked like rhinophyma. Microbiological examination of the skin biopsy showed the presence of Cryptococcus neoformans. At the time of the study, t...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000205038
更新日期:1990-01-01 00:00:00
abstract::B-cell chronic lymphocytic leukaemia (B-CLL) is characterized by a high frequency of infections, including those of viral aetiology. Previous reports have demonstrated a specific immunologic response to influenza virus vaccine in B-CLL patients with normal IgG levels. In this study, we have evaluated different immunop...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000040709
更新日期:1998-01-01 00:00:00
abstract::In 83 children with acute lymphoblastic leukaemia (ALL) the immunological phenotype of the lymphoblasts was determined using E rosetting, monoclonal anti-T cell sera, surface immunoglobulin staining and common ALL antiserum. The data were compared with acid alpha-naphthyl acetate esterase (ANAE) and acid phosphatase (...
journal_title:Acta haematologica
pub_type: 杂志文章
doi:10.1159/000206835
更新日期:1983-01-01 00:00:00