Objective To study the clinical significance and characteristic of acute leukemia(AL) immunophenotype expression in children.Methods Immunofluoscence labeled with three and two color monoclonal antibodies directly were used to analyze the surface antigen and cytoplastic antigen.Cytoplastic antigen was detected by flow cytometry additionally.Results Specimens from 85 patients with childhood acute leukemia were detected.1.The undifferentiated phenotype account for 1 case(1.2%);Mixed leukemia 7 cases(8.2%);Acute myeloid leukemia 18 cases(21.2%);Acute lymphoid leukemia 59 cases(69.4%).The subtypes of acute lymphoid leukemia:(B-ALL) 50 cases(84.7%),T-ALL 6 cases(10.2%),T/B 3 cases(5.1%).2.Among 59 cases of acute lymphoid leukemia,there were 31 cases ALL expression myeloid-associated antigen;There was no difference on the clinical and prognosis between the group of myeloid-associated antigen positive and the negative group.3.Of 18 patients with AML,5 patients(27.8%) expressed lymphoid antigen,CD7 was the most commonly expressed(60%);The frequency of CD_(14) expression in childhood M4,M5 was 75%.CD_(13),CD_(33) presented in 83.3% and 94.4% cases of AML,respectively.4.Among 7 cases acute mixed leukemia,B/M 6 cases,TB/M 1 case.Five cases were misdiagnosed as ALL by FAB classification.Conclusions With the multi-color flow cytometry,every acute leukemia patient was diagnosed accurately,especially on acute mixed leukemia and cross-lineage expression leukemia.Those help us choice the best treatment protocol for childhood AL.

Blood Cell Count ; Bone Marrow Cells ; pathology ; Child ; Cytokines ; analysis ; Fever ; Histiocytosis, Non-Langerhans-Cell ; metabolism ; pathology ; therapy ; Humans ; Interleukin-2 ; analysis ; Interleukin-6 ; analysis ; Receptors, Interleukin-1 ; analysis

Objective To investigate the biological activity of cytokine-induced killer(CIK)cells in vitro.Methods Lymphocytes isolated from peripheral blood in leukemic children were induced with interferon-?(IFN-?),anti-CD3 monoclonal antibody(CD3McAb)and interleukin-2(IL-2)and co-cultured with dendritic cells(DC)to generate DC-CIK cells.The morphology and immunophenotype of these cells were determined by electron microscopy and flow cytometry,respectively.Cytotoxicity of DC-CIK cells against leukemia cell lines was measured by the methyl thiazolyl tetrazolium (MTT) assay.Interleukin-12(IL-12),tumor necrosis factor-?(TNF-?)levels released by DC-CIK cells were quantified by enzyme-linked immunosorbent assays.Results Induced DC-CIK cells were regular,round and transparent with variable cell volume and cellular aggregation.At the 0th-4th day,its amplification was very slow,and it increased quickly at the 5th-8th day,it reached its peak amplification at the 9th-10th day,at approximately 100-fold.The main effector cells in this population were CD3+CD8+ cells and CD3+CD56+ cells.DC-CIK cells were cytotoxic to B95 cells,K562 cells and HL-60 cells,with the highest cytotoxicity towards B95 cells.The expression levels of IL-12 and TNF-? in supernatant were very high.Conclusions DC-CIK cells induced with cytokines displayed powerful amplification and strongly killing activities in vitro.It suggested that DC-CIK cells induced with cytokines may play killing activities through Th1 pathway in vitro,as a result of high secretion of Th1 cytokines,such as IL-12 and TNF-?.

Objective To investigate the cytotoxicity and mechanism of killing tumor of cytokine-induced killer (CIK) cells in vitro.Methods Mononuclear cells were acquired freshly from bone marrow of children with leukemia,and the cells obstained were induced into dendritic cells by adding granulocyte-macrophage colony-stimulating,IL-4,TNF-? and other cytokines.Lymphocytes cells were isolated freshly from peripheral blood of children with leukemia by Ficoll-Hypaque density centrifugation,and the cells obstained were induced by IFN-?,IL-2 and CD3McAb.The DC cells and CIK cells were co-cultured for 10-25 days,then DC-CIK cells were obtained.Phenotypes of DC-CIK were analyzed by flow cytomery.The cytotoxicity of DC-CIK against a variety of leukemic cell lines was investigated by MTT technique.When treated with mouse-anti-human LFA-1 monoclonal antibody,the expression of GATA-3 and T -bet in the levels of mRNA and protein were mea-sured by using RT-PCR and Western Blot technique,respectively.Results In the first 0-6 days,DC-CIK induced slowly,the proliferation of DC-CIK got 100-fold at the 13th day,cells were rapidly proliferating in the first 13-21 days.The maximum proliferation of DC-CIK reached at the 22nd day.The phenotypes of CD3,CD11a,CD54,HLA-DR were expressed highly; CD3/CD56,CD25,CD28,CD69,FasL were expressed moderately on DC-CIK.The expression of CD16 was not increased.DC-CIK possessed the cytotoxicity against tumor cells of B95,Jhhan and M07e.The effect was stronger to B95,there was no significant difference when the efficiency target ratio was 12.5:1.0 or 25:1,the cytotoxicity reached about 50% and 60%,respectively,against tumor cells of B95.However,it was not obvious to Jhhan and M07e.When the efficiency target ratio was 12.5:1.0 or 25:1,the cytotoxicity reached to 27.21%,25.13%,33.05%,29.72%,respectively,against tumor cells of Jhhan and M07e.When treated with mouse-anti-human LFA-1 monoclonal antibody,the expression of GATA-3 in the level of mRNA was up-regulated(t=3.425,4.523 Pa

We report one case of pediatric acute myeloid leukemia type 2 (AML-M2) who presented with karyotypic aberration of trisomy 21 with the t(5;ll) chromosomal translocation.The patient achieved complete remission after two cycles of chemotherapy of daunorubicin,cytarabine and etoposide.Then,follow-up cytogenetic analysis from bone marrow cell cultures demonstrated a normal karyotype of 46,XY.After 9 years,the patient relapsed and the karyotypic abnormalities of trisomy 21 with t(5;ll) reappeared.It was concluded that trisomy 21 with t(5;11) is a new unfavorable cytogenetic aberration in AML-M2.

OBJECTIVETo investigate the therapeutic efficacy and adverse reactions of Aidi Injection (AI) combined with percutaneous cool-tip radiofrequency ablation (CRFA) in treatment of primary liver cancer and to explore its effect on immune function.

METHODSEighty-nine patients with primary liver cancer at middle-late stage were assigned to the control group with CRFA alone and the treatment group treated with CRFA and intravenous dripping of AI 50 mL once every day for succesive 20 days.

RESULTSCompared with those before treatment, the alanine aminotransferase (ALT) and albumin (ALB) levels showed no marked change, and CD4 subgroup of T lymphocyte and CD4/CD8 ratio elevated in the treatment group (P<0.01), while the ALT level elevated (P<0.05), ALB level decreased (P < 0.01), CD4 and CD4/CD8 ratio showed no change in the control group. The relapse rate was 20.0% (3/15) in patients with tumor more than 3 cm in diameter of the treatment group, which was obvious lower than that in the control group (55.0%, 11/20, P < 0.05).

CONCLUSIONAI treatment could relieve the impairment of CRFA on hepatic function, improve immune function and reduce relapse rate in patients with primary liver cancer.

Adult ; Aged ; CD4-CD8 Ratio ; Carcinoma, Hepatocellular ; immunology ; therapy ; Catheter Ablation ; methods ; Combined Modality Therapy ; Drugs, Chinese Herbal ; administration & dosage ; therapeutic use ; Female ; Humans ; Infusions, Intravenous ; Liver Neoplasms ; immunology ; therapy ; Male ; Middle Aged ; Phytotherapy ; Treatment Outcome

Adult ; Aged ; Aged, 80 and over ; Breast Neoplasms ; diagnostic imaging ; pathology ; Female ; Humans ; Lactation ; Male ; Middle Aged ; Ultrasonography

OBJECTIVEThis study compared the differences in clinical features between chronic aplastic anemia (CAA) and myelodysplastic syndrome (MDS) in children in order to provide a basis for the differential diagnosis of the two diseases.

METHODSA retrospective study of 23 cases of CAA and 9 cases of MDS from September 2007 to September 2010 was performed. The clinical data including routine blood test results, reticulocyte counts, serum lactate dehydrogenase level, serum ferritin level, cytological examination of bone marrow, bone marrow CD34+ cell counts, bone marrow chromosome and FISH test results were compared between the CAA and MDS groups.

RESULTSNeutrophils, reticulocytes, and serum ferritin and lactate dehydrogenase levels increased in the MDS group compared with those in the CAA group. There were significant differences in bone marrow blast cell counts and dyshematopoiesis phenomena of three lines blood cells between the CAA and MDS groups. The bone marrow CD34+ cell counts and the rate of chromosomal abnormalities detected in bone marrow cytogenetic analysis in the MDS group were significantly higher than those in the CAA group.

CONCLUSIONSThere are differences in the results of laboratory examinations and morphological and cytogenetic examinations of bone marrow between the children with CAA and MDS. The differences are useful to the differential diagnosis of the two diseases.

Anemia, Aplastic ; genetics ; pathology ; Bone Marrow Examination ; Child ; Child, Preschool ; Chromosome Aberrations ; Chronic Disease ; Female ; Humans ; Male ; Myelodysplastic Syndromes ; genetics ; pathology