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Genotoxicity evaluation of drinking water sources in human peripheral blood lymphocytes using the comet assay 被引量:2
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作者 WU Yulin CHEN Haigang +4 位作者 LI Zhaoli SUN Liwei QU Mengmeng LI Mei KONG Zhiming 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2008年第4期487-491,共5页
The potential harm of organic pollutants in drinking water to human health is widely focused on in the wodd; more and more pollutants with genotoxic substances are released into the aquatic environment. Water source s... The potential harm of organic pollutants in drinking water to human health is widely focused on in the wodd; more and more pollutants with genotoxic substances are released into the aquatic environment. Water source samples were collected from 7 different localities of Nanjing City. The potential genotoxicity of organic extracts from drinking water sources were investigated by means of the comet assay in human peripheral lymphocytes. The results showed that all the organic extracts from all the water source samples could induce DNA damages of human peripheral blood lymphocytes at different levels. A significant difference (P 〈 0.01) was observed when compared with the solvent control, The DNA damage increased with the increase of the dosage of the original water source. Significant differences of DNA damage were observed in different drinking water sources, as shown by the multiple comparisons analysis at the dosage of 100x; the degree of DNA damage treated by Hushu waterworks (at town level) was the most serious, the arbitrary units (AU) was 141.62±6.96, however, that of Shangyuanmen waterworks (at city level) was only 109.64±2.97. The analysis also revealed that the genotoxicity of town's water sources was higher than that of the city. The results demonstrated that the comet assay can be successfully applied to the genotoxicity monitoring programs of drinking water sources. 展开更多
关键词 comet assay drinking water sources GENOTOXICITY human peripheral blood lymphocyte
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DNA Damage Response in Resting and Proliferating Peripheral Blood Lymphocytes Treated by Camptothecin or X-ray 被引量:2
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作者 田铭 冯永东 +6 位作者 闵江 龚万军 肖薇 李小兰 陶德定 胡俊波 龚建平 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2011年第2期147-153,共7页
DNA damage response (DDR) in different cell cycle status of human peripheral blood lymphocytes (PBLs) and the role of H2AX in DDR were investigated. The PBLs were stimulated into cell cycle with phytohemagglutinin... DNA damage response (DDR) in different cell cycle status of human peripheral blood lymphocytes (PBLs) and the role of H2AX in DDR were investigated. The PBLs were stimulated into cell cycle with phytohemagglutinin (PHA). The apoptotic ratio and the phosphorylation H2AX (S139) were flow cytometrically measured in resting and proliferating PBLs after treatment with camptothecin (CPT) or X-ray. The expressions of γH2AX, Bcl-2, caspase-3 and caspase-9 were detected by Western blotting. DDR in 293T cells was detected after H2AX was silenced by RNAi method. Our results showed that DNA double strand breaks (DSBs) were both induced in quiescent and proliferating PBLs after CPT or X-ray treatment. The phosphorylation of H2AX and apoptosis were more sensitive in proliferating PBLs compared with quiescent lymphocytes (P0.05). The expression levels of anti-apoptotic proteins Bcl-2 were reduced and cleaved caspase-3 and caspase-9 were increased. No significant changes were observed in CPT-induced apoptosis in 293T cells between H2AX knocking down group and controls. It was concluded that proliferating PBLs were more vulnerable to DNA damage compared to non-stimulated lymphocytes and had higher apoptosis rates. γH2AX may only serve as a marker of DNA damage but exert no effect on apoptosis regulation. 展开更多
关键词 DNA double strand breaks PHYTOHEMAGGLUTININ peripheral blood lymphocytes γH2AX DNA damage response
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Metallothionein 1 Isoform Gene Expression Induced by Cadmium in Human Peripheral Blood Lymphocytes 被引量:1
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作者 XIU-LI CHANG TAI-YI JIN YUAN-FEN ZHOU 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2006年第2期104-109,共6页
Objective To study the gene expression of metallothionein 1 (MT-1) isoforms in human peripheral blood lymphocytes (HPBLs). Methods The expression of mRNA representing the seven active MT-I genes was determined in ... Objective To study the gene expression of metallothionein 1 (MT-1) isoforms in human peripheral blood lymphocytes (HPBLs). Methods The expression of mRNA representing the seven active MT-I genes was determined in HPBLs by quantitative RT-PCR before and after exposure to cadmium. Results Basal expressions of MT-IX, and MT-1A in HPBLs were similar to expression of housekeeping gene. In contrast, the basal gene expressions of MT- 1 H, IF, 1E, and 1G were a little transcripts in human HPBLs. No signal was detected for MT-1B. There was a sex difference (P〈0.05). in basal gene expression of MT-1E. The levels of gene expression of MT-1A, 1E, IF, 1G, 1H, and 1X increased, but the level of MT-1B did not increase after exposure to cadmium. Conclusions Gene expressions of MT-1 G, MT-1 H, MT-1 F, and MT-1X in HPBLs can be used as a potential biomarker of cadmium exposure. 展开更多
关键词 Metallothionein 1 GENE Human peripheral blood lymphocytes CADMIUM
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Early Changes of Peripheral Blood Lymphocyte Subpopulations in Patients with Occupational 2,4-dinitrophenol Poisoning 被引量:4
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作者 JIANG Jiu Kun FANG Wen +1 位作者 GU Lin Hui LU Yuan Qiang 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2016年第12期909-914,共6页
2,4-dinitrophenol (DNP), an organic compound which frequently used in industry, is considered to have high toxicity. This study aimed to investigate the early changes of lymphocyte subpopulations in patients with oc... 2,4-dinitrophenol (DNP), an organic compound which frequently used in industry, is considered to have high toxicity. This study aimed to investigate the early changes of lymphocyte subpopulations in patients with occupational 2,4-DNP poisoning. Totally 9 patients with acute occupational 2,4-DNP poisoning and 30 healthy volunteers as control were enrolled. The patients received immediately comprehensive supportive treatments, including large-dose glucocorticoid and repeated hemoperfusion (HP). The ratio of CD4+/CD8+ T cells were significantly higher in patients upon admission compared to healthy controls (P 〈 0.01); however, counts of total lymphocytes, CD3+, CD3+CD4+, CD3+CD8+, B (CD19+), and natural killer (NK) cells (CD16+CD56+) were significantly reduced (all P 〈 0.001). The NK cell count was negatively correlated with initial plasma 2,4-DNP concentration (r = -0.750, P = 0.026). Thus, acute occupational 2,4-DNP poisoning was accompanied by immediate complex immune cell reactions, especially NK cells might play important role in severe 2,4-DNP poisoning. 展开更多
关键词 DNP Early Changes of peripheral blood lymphocyte Subpopulations in Patients with Occupational 2 4-dinitrophenol Poisoning
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Day 100 Absolute Monocyte/Lymphocyte Prognostic Score and Survival Post Autologous Peripheral Blood Hematopoietic Stem Cell Transplantation in Diffuse Large B-Cell Lymphoma 被引量:2
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作者 Ana I. Velazquez David J. Inwards +5 位作者 Stephen M. Ansell Ivana N. Micallef Patrick B. Johnston William J. Hogan Svetomir N. Markovic Luis F. Porrata 《Journal of Cancer Therapy》 2013年第8期1298-1305,共8页
Day 100 prognostic factors post-autologous peripheral blood hematopoietic stem cell transplantation (APBHSCT) to predict clinical outcomes in diffuse large B-cell lymphoma (DLBCL) patients have not been studied. Thus,... Day 100 prognostic factors post-autologous peripheral blood hematopoietic stem cell transplantation (APBHSCT) to predict clinical outcomes in diffuse large B-cell lymphoma (DLBCL) patients have not been studied. Thus, we retrospectively examined if day 100 absolute monocyte/lymphocyte prognostic score (AMLPS-100) affects clinical outcomes by landmark analysis from day 100 post-APBHSCT in DLBCL. Only DLBCL patients in complete remission at day 100 post-APBHSCT were evaluated. From 2000 to 2007, 134 consecutive DLBCL patients are qualified for the study. Patients with a day 100 absolute monocyte count (AMC-100) ≥ 630 cells/μL and day 100 absolute lymphocyte count (ALC-100) ≤ 1000 cells/μL experienced inferior overall survival (OS) and progression free survival (PFS). On multivariate analysis, the AMC-100 and ALC-100 remained independent predictors of OS and PFS. Combining both values into the AMLPS-100, the 5-year OS rates for low, intermediate, and high AMLPS-100 risk groups were 94% (95% CI, 83.0% - 98.1%), 70% (95% CI, 58.6% - 80.1%), and 13% (95% CI, 3.4% - 40.5%), respectively;and the 5-year PFS rates were 87% (95% CI, 74.0% - 94.1%), 68% (95% CI, 56.0% - 77.8%), and 13% (95% CI, 3.4% - 40.5%), respectively. The AMLPS-100 is a simple biomarker score that can stratify clinical outcomes from day 100 post-APBHSCT in DLBCL patients. 展开更多
关键词 Monocyte/lymphocyte Prognostic Score Diffuse Large B-CELL Lymphoma SURVIVAL AUTOLOGOUS peripheral blood HEMATOPOIETIC Stem Cell Transplantation
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The Importance of Neutrophil to Lymphocyte Ratio and Peripheral Blood Eosinophilia in Chronic Obstructive Pulmonary Disease Patients with Acute Exacerbation: Recent Studies 被引量:1
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作者 Abdullahi Hassan Abdinur Yadong Gao 《Open Journal of Respiratory Diseases》 2019年第2期37-47,共11页
Chronic obstructive pulmonary disease (COPD) is a chronic, progressive respiratory disease and the third leading cause of respiratory disease mortality. The diagnosis of COPD is changed to acute exacerbation of COPD (... Chronic obstructive pulmonary disease (COPD) is a chronic, progressive respiratory disease and the third leading cause of respiratory disease mortality. The diagnosis of COPD is changed to acute exacerbation of COPD (AECOPD) when respiratory symptoms become worse, beyond normal day-to-day variations and severely enough that changes in medication are required. Both neutrophils to lymphocyte ratio (NLR) and peripheral blood eosinophilia (PBE) are rapid and relatively inexpensive tests that can be easily applied in the clinical practice for the diagnosis and treatment of AECOPD patients. Furthermore, current studies found that NLR and PBE had a higher accuracy rate than other traditional markers (Leukocyte count and C-reactive protein) for the diagnosis and management of AECOPD. Besides, recent studies determined that NLR and PBE can be used for prediction of future exacerbations in COPD patients. This review aims to explore the current knowledge about the significance of NLR and PBE in AECOPD patients. 展开更多
关键词 Chronic OBSTRUCTIVE Pulmonary Disease Acute EXACERBATION NEUTROPHIL to lymphocyteS Ratio peripheral blood EOSINOPHILIA
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Potassium channel in peripheral blood lymphocytes of turbot (Scophthalmus maximus)
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作者 CHAI Yingmei HUANG Xiaohang +2 位作者 CONG Bailin LIU Chenlin LIU Shenghao 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2010年第1期116-119,共4页
In order to provide pertinent evidence of ion channel with immune response in the fish, whole cell patch-clamp technique was employed for potassium ion channel study in turbot (Scophthalmus maximus). Lymphocytes wer... In order to provide pertinent evidence of ion channel with immune response in the fish, whole cell patch-clamp technique was employed for potassium ion channel study in turbot (Scophthalmus maximus). Lymphocytes were isolated by Percoll density gradient centrifugation from peripheral blood samples, and electrophysiological characters of the channel were analyzed. In the recorded cells, activated voltage of the channels was -42.5±3.7 mV and the average peak current was 313.12±28.2 pA. The channel was identified as voltage dependent, the current was outward and it could be inhibited by 10 mmol/dma TEA or 5 mmol/dm^3 4-AP, a specific potassium channel inhibitor, identifying the existence of potassium channel in peripheral lymphocytes of the turbot. 展开更多
关键词 patch-clamp technique potassium channel turbot peripheral blood lymphocyte
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EXPRESSION OF IL-2R ON PERIPHERAL BLOOD LYMPHOCYTES OF PATIENTS WITH COLORECTAL CANCER AND ITS CLINICAL SIGNIFICANCE
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作者 汪祥辉 许沈华 +2 位作者 冯建国 李德川 楼荣灿 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2001年第1期69-73,共5页
Objective: To study expression of membrane receptors of interleukin-2 (CD25) on the peripheral blood lymphocytes (PBL) of patients with colorectal cancer and its clinical significance. Methods: CD25 percentages (CD25%... Objective: To study expression of membrane receptors of interleukin-2 (CD25) on the peripheral blood lymphocytes (PBL) of patients with colorectal cancer and its clinical significance. Methods: CD25 percentages (CD25%) in PBL of 105 colorectal cancer patients before operation and 100 normal individuals were examined by flow cytometer, and the results were clinically and pathologically analyzed. Results: The mean of CD25% in PBL of the normal individuals was 17.24±5.33, it was significantly lower (P<0.01) than that of the colon cancer patients (21.29±7.95) or rectal cancer patients (21.62±6.11). In contrast to the normal individuals, the means of CD25% in PBL in ulcer type (20.53±6.50) or protruded type (21.56±6.16) colorectal cancer patients were notably elevated (P<0.01). The significant difference (P<0.01) of means of CD25% in PBL was observed between the normal individuals and patients with less than 4 cm mass (22.10±5.43) or 4cm–8cm mass (20.90±6.96). The significant difference (P<0.05) of means of CD25% in PBL was also observed between the normal individuals and patients with greater than 8 cm mass (21.56±5.41). The mean of CD25% in PBL in patients with well differentiation colorectal cancer was 22.20±5.50, it was significantly higher than that in normal individuals (P<0.05). The means of CD25% in PBL in patients with middle or poor differentiation colorectal cancer were 21.30±6.89 and 22.15±5.71 respectively, they were obviously higher than that in normal individuals (P<0.01). The significant difference (P<0.01) of means of CD25% in PBL was present between the colorectal cancer patients without metastatic lymph nodes (22.06±6.90) and normal individuals. The significant difference (P<0.05) of means of CD25% in PBL was present between the colorectal cancer patients with metastatic lymph nodes (20.73±6.40) and normal individuals. The means of CD25% in PBL in colorectal cancer patients in various clinic stages were significantly higher than that in the health subjects (P<0.01). The significant difference (P<0.01) of means of CD25% in PBL was present between the patients whose ages were equal to or less than 60 (21.00±5.76) and normal individuals in the same age group. The significant difference (P<0.05) of means of CD25% in PBL was also present between the patients whose ages were greater than 60 (22.54±7.75) and normal individuals in the same age group. The significant difference (P<0.01) of means of CD25% in PBL was present between the male patients (22.55±7.05) and normal men. The significant difference (P<0.05) of means of CD25% in PBL was also present between the female patients (20.09±5.48) and normal women. Conclusion: The mean of CD25% in PBL of colorectal cancer patients was significantly higher than that in health subjects. Abnormally elevated CD25% were correlative with site of tumor growth, macropathology type of tumor, the degree of tumor differentiation, clinical stage and patient’s age and sex. It may be helpful to detect CD25% in PBL of colorectal cancer patients before operation for diagnosis, immune treatment and judging prognosis. 展开更多
关键词 Key Word CD25 Flow cytometry (FCM) Colorectal cancer peripheral blood lymphocytes
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Isolation of Sturgeon Peripheral Blood Lymphocytes and the Optimal Proliferation Response Conditions
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作者 Ying DONG Hongxia HU +2 位作者 Zhaohui TIAN Wei WANG Tian DONG 《Agricultural Biotechnology》 CAS 2018年第5期143-147,152,共6页
In this study, sterlet ( Acipenser ruthenus ) was chosen as the model species of sturgeon, different solutions were used to isolate the sturgeon peripheral blood lymphocytes and study their optimal proliferate respo... In this study, sterlet ( Acipenser ruthenus ) was chosen as the model species of sturgeon, different solutions were used to isolate the sturgeon peripheral blood lymphocytes and study their optimal proliferate response condition. Phytohemagglutinin (PHA), concanavalin A (ConA)and lipopolysaccharide (LPS) were used as lymphocyte proliferation mitogen, respectively. According to L 25 (5^6) five-factor five-level orthogonal experimental design, the conditions for sturgeons proliferation response of peripheral blood lymphocytes were optimized using enhanced cell counting Kit-8 (enhanced CCK-8 or WST-8). Five factors were selected to explore the optimal response conditions, including culture time, culture temperature, cell concentration, fetal bovine serum (FBS) concentration, and mitogen concentration. The results showed that 70% Percoll (1.092 g/ml) used as the sturgeon lymphocyte separation solution had the best separating effect. The optimal proliferation conditions were as follows: 3.625×10 6 initial cells, 20 μg/ml PHA or 50 μg/ml ConA or 10 μg/ml LPS as mitogen, 10%-20% FBS, the temperature at 20-25 ℃, and the culture time of 2 d. 展开更多
关键词 STURGEON peripheral blood lymphocytes lymphocyte isolation PROLIFERATION PHA CONA LPS CCK-8
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Study on Peripheral Blood Lymphocytes ChromosomeAbnormality of People Exposed to Cadmium in Environment
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作者 FUJIAN-YUN HUANGXING-SHU 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1999年第1期15-19,共5页
Chromosome aberration (CA) and micmnucleus (MN) tests were appied to investigate Peripheral blood lymphocytes in 56 people environmentally exposed to cadwhum (Cd) for a period up to 30years, and in 10 unexposed People... Chromosome aberration (CA) and micmnucleus (MN) tests were appied to investigate Peripheral blood lymphocytes in 56 people environmentally exposed to cadwhum (Cd) for a period up to 30years, and in 10 unexposed People as controls. As indicator of body-load of Cd, urineq Cd (UCd)concentrations were measured simultaneously. The People in polluted villages were divided into four groups according to vallous levels of UCd concentrations: ~ 2 .5, 2 .5 ~, 5 .0 ~, 10.0 ~ (μg/l).There was significant difference in MN rates between the exposed and control groups (3 .47, 5 .06,8.06, 12 .75‰ for the exposed groups respectively, and 3. 10‰ for the controls), and significant correlation between MN rates and UCd was observed. Although no markesd difference in CA rates was noted between UCd 5 .0 ~ and 10 .0 ~ groups, there was significant difference in CA rates between the exposed and control groups (3. 07,5. 21, 7. 21, 8. 50% for exposed groups respectively, and2 .33% for the controls) and significant correlation between CA rates and UCd. CA was presented mainly in the form of chromatid and chromosome gaps and breaks. Together with our another study 'An Investigation on Human Health Effects by Envimnmental Cadmium Pollution', the results suggest that Cd may injure human chromosomes and that the damage appears to be concentrated on cytogenetic material and may happen earlier than renal disfunction 展开更多
关键词 Study on peripheral blood lymphocytes ChromosomeAbnormality of People Exposed to Cadmium in Environment NIOSH
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Correlation Study Between T Lymphocyte Subsets and Rheumatoid Arthritis
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作者 Wei Gou 《Journal of Clinical and Nursing Research》 2024年第7期178-183,共6页
Objective:To study the effect of Helicobacter pylori infection on rheumatoid arthritis and T-lymphocyte subpopulations in patients with rheumatoid arthritis and to provide a new method for the treatment of rheumatoid ... Objective:To study the effect of Helicobacter pylori infection on rheumatoid arthritis and T-lymphocyte subpopulations in patients with rheumatoid arthritis and to provide a new method for the treatment of rheumatoid arthritis by removing Helicobacter pylori from patients.Methods:60 patients with rheumatoid arthritis admitted to the hospital from May 2022 to May 2023 were selected for the study,and all patients underwent a 13-carbon urea breath test to detect gastric H.pylori and the test results showed that 20 cases were negative and 40 cases were positive.The 40 positive patients were divided into the treatment group(n=20)and non-treatment group(n=20)by random number table method and the treatment group was given anti-Helicobacter pylori treatment,and the non-treatment group was given maintenance rheumatoid basic treatment,comparing the anti-cyclic citrulline peptide(CCP),DS28 score,peripheral blood T-lymphocyte subsets(CD4^(+)T-lymphocytes,CD8^(+)T-lymphocytes,CD4^(+)/CD8^(+)ratio)before and after the treatment of patients by 13-carbon urea respiration test(pylori-negative group,20 patients)and those who were positive for the treatment of H pylori(pylori-positive group,40 patients).Besides,the correlation of peripheral blood T-lymphocyte subsets and disease activity between treatment and non-treatment groups in the pylori-positive group was identified together with the correlation of DS28 scores,TNF-αlevels,sedimentation and immunoglobulin,lymphocyte subsets in the pylori-positive treatment group and positive non-treatment group as well as the level of globulin,lymphocyte subsets,and peripheral blood lymphocytes before and after treatment.Results:Before treatment,CCP,DS28 score,CD8^(+)T lymphocyte level of the pylori-negative group were lower than that of the positive group,and CD4^(+)T lymphocyte and CD4^(+)/CD8^(+)ratio were higher than that of the positive group(P<0.05);after treatment,the indexes of the pylori-positive group improved,and there was no significant difference in the comparison of the indexes with those of the pylori-negative group(P>0.05);the positive treatment group had a DS28(3.19±1.02)points,positive non-treatment group DS28(5.36±1.85)points,non-treatment group DS28 score and CD4^(+)T lymphocytes,CD4^(+)/CD8^(+)negative correlation with CD8^(+)T lymphocytes showed a positive correlation(P<0.05);before the treatment,pylori-positive treatment group and non-treatment group DS28 scores,TNF-αlevels,peripheral blood T lymphocyte subpopulation levels were not significantly different(P>0.05);after treatment,DS28 score,TNF-αlevel,CD8^(+)T of the treatment group were lower than those of the non-treatment group,and CD4^(+)T lymphocytes and CD4^(+)/CD8^(+)ratio were higher than those of the non-treatment group(P<0.05).Conclusion:H.pylori affects the level of T lymphocyte subsets in patients with rheumatoid arthritis,and there is a certain correlation between the two.Removal of H.pylori can improve the level of T lymphocyte subsets,which is important for the treatment of patients with rheumatoid arthritis. 展开更多
关键词 peripheral blood T lymphocyte subsets Rheumatoid arthritis Helicobacter pylori Intestinal flora dysbiosis
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Culturing adequate CAR-T cells from less peripheral blood to treat B-cell malignancies 被引量:2
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作者 Lu Han Jian Zhou +9 位作者 Linlin Li Keshu Zhou Lingdi Zhao Xinghu Zhu Qingsong Yin Yufu Li Hongqin You Jishuai Zhang Yongping Song Quanli Gao 《Cancer Biology & Medicine》 SCIE CAS CSCD 2021年第4期1066-1079,共14页
Objective:Chimeric antigen receptor-modified T(CAR-T)cells have shown impressive results against relapsed/refractory B cell malignancies.However,the traditional manufacture of CAR-T cells requires leukapheresis to iso... Objective:Chimeric antigen receptor-modified T(CAR-T)cells have shown impressive results against relapsed/refractory B cell malignancies.However,the traditional manufacture of CAR-T cells requires leukapheresis to isolate large amounts of peripheral blood T cells,thus making some patients ineligible for the procedure.Methods:We developed a simple method for CAR-T cell preparation requiring small volumes of peripheral blood.First,CD3+T cells isolated from 50 mL peripheral blood from patients(B-cell malignancies)were stimulated with immobilized anti-CD3/RetroNectin in 6-well plates and then transduced with CAR-expressing lentiviral vector.After 4 d,the T cells were transferred to culture bags for large-scale CAR-T cell expansion.In vitro and animal experiments were performed to evaluate the activity of the manufactured CAR-T cells.Finally,29 patients with B-cell acute lymphoblastic leukemia(B-ALL)and 9 patients with B-cell lymphoma were treated with the CAR-T cells.Results:The CAR-T cells were expanded to 1–3×10^(8) cells in 8–10 d and successfully killed B cell-derived malignant tumor cells in vitro and in vivo.For patients with B-ALL,the complete remission rate was 93%1 month after CAR-T cell infusion;after 12 months,the overall survival(OS)and leukemia-free survival rates were 69%and 31%,respectively.For patients with lymphoma,the objective response rate(including complete and partial remission)was 78%2 months after CAR-T cell infusion,and after 12 months,the OS and progression-free survival rates were 71%and 43%,respectively.Cytokine-release syndrome(CRS)occurred in 65.51%and 55.56%of patients with B-ALL and B-cell lymphoma,respectively;severe CRS developed in 20.69%of patients with B-ALL and in no patients with lymphoma.Conclusions:Our novel method can generate sufficient numbers of CAR-T cells for clinical use from 50–100 mL peripheral blood,thus providing an alternative means of CAR-T cell generation for patients ineligible for leukapheresis. 展开更多
关键词 Fewer initial lymphocytes peripheral blood CAR-T cells B-cell malignancy acute lymphoblastic leukemia
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Cytogenetic Effects of Pulsing Electromagnetic Field on Domestic Pig Lymphocytes in Vitro 被引量:2
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作者 ZOU Fang-Dong XU Liu +1 位作者 WANG Zi-Shu WANG Xi-Zhong 《Zoological Research》 CAS CSCD 北大核心 2001年第2期89-92,T001,共5页
The effects of pulsing electromagnetic fields(PEMFs)on cells are very important subjects in the field of bioelectromagnetics.In this experiment,the cytogenetic effects of PEMF on domestic pig lymphocytes were tested i... The effects of pulsing electromagnetic fields(PEMFs)on cells are very important subjects in the field of bioelectromagnetics.In this experiment,the cytogenetic effects of PEMF on domestic pig lymphocytes were tested in vitro.Pig lymphocytes in RPMI 1640 medium were exposed to PEMFs of 100 kHz and 200 kHz for 12,24 and 48 hours.Chromosomal aberrations(aneuploidy,breaks,gaps,et al)were significantly increased in exposed cultures,and of these aberrations,56%chromosomal or chromatid breaks and 42%gaps induced by PEMFs were the points of pig chromosomal fragile sites.The baseline frequency of sister chromatid exchange(SCE)increased after exposing lymphocytes continuously to PEMFs of 100 kHz and 200 kHz for 48 hours.These results suggested that the exposure to PEMFs might induce a type of DNA lesion and chromosomal aberrations. 展开更多
关键词 Pulsing electromagnetic fields peripheral blood lymphocyte Chromosomal aberrations Fragile sites
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A Review: Interactions of Equine Herpesvirus-1 with Immune System and Equine Lymphocyte 被引量:2
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作者 Nor Dini Rusli Khairiyah Binti Mat Hasnita Che Harun 《Open Journal of Veterinary Medicine》 2014年第12期294-307,共14页
Equine herpesvirus-1 (EHV-1) remains one of the most common viral pathogens affecting horses worldwide presenting as a persistent infection which can establish latency in nerve ganglia (trigeminal ganglion), lymphoid ... Equine herpesvirus-1 (EHV-1) remains one of the most common viral pathogens affecting horses worldwide presenting as a persistent infection which can establish latency in nerve ganglia (trigeminal ganglion), lymphoid tissues of the respiratory tract and peripheral blood lymphocytes. EHV-1 infection induces both humoral and cellular immune responses in horses. Virus neutralising antibody, particularly in the nasopharynx, is to kill free virus shed from infected epithelial cells. Hence this antibody has important functions in reducing virus shedding and spreading infection to cohorts. Cellular immune responses, particularly those carried out by cytotoxic T lymphocyte (CTL), have been shown to be effective in killing virus-infected cells in vitro. This review underlines the state of knowledge regarding immunity to EHV-1 and also its interaction with equine lymphocyte. Finally, the review also includes the importance of the viral immediate early (IE) protein in the pathogenesis of EHV-1. This information can be used as the basis for future research. 展开更多
关键词 EQUINE Herpesvirus-1 (EHV-1) lymphocyte CYTOTOXIC T lymphocyte (CTL) Immune Response peripheral blood MONONUCLEAR cell (PBMC)
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外周血T淋巴细胞、IL-4及趋化因子CXCL13在神经梅毒患者中的检测意义
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作者 彭超 林阳 何俐 《分子诊断与治疗杂志》 2024年第2期251-254,259,共5页
目的分析外周血T淋巴细胞、白介素-4(IL-4)及趋化因子CXC配体13(CXCL13)水平检测在神经梅毒患者中的临床意义。方法选取2020年9月至2023年1月四川大学华西医院收治的188例梅毒患者作为研究对象,其中包括62例血清固定患者(血清固定组)及... 目的分析外周血T淋巴细胞、白介素-4(IL-4)及趋化因子CXC配体13(CXCL13)水平检测在神经梅毒患者中的临床意义。方法选取2020年9月至2023年1月四川大学华西医院收治的188例梅毒患者作为研究对象,其中包括62例血清固定患者(血清固定组)及126例神经梅毒患者(神经梅毒组)(包括无症状型31例,早期58例,晚期37例)。另选取同时期于本院门诊和体检就诊的正常健康者(对照组)80名。比较不同人群、梅毒不同病情程度患者外周血T淋巴细胞、IL-4及化因子CXCL13水平。采用受试者工作特征(ROC)曲线分析外周血T淋巴细胞、IL-4及趋化因子CXCL13联合检测对早期神经梅毒识别的诊断价值。结果CD4^(+)、CD4^(+)/CD8^(+)值:神经梅毒组<血清固定组<对照组,差异有统计学意义(P<0.05)。IL-4、CXCL13水平:神经梅毒组>血清固定组>对照组,差异有统计学意义(P<0.05)。CD4^(+)、CD4^(+)/CD8^(+)值:晚期组<早期组<无症状组,差异有统计学意义(P<0.05)。IL-4、CXCL13水平:晚期组>早期组>无症状组,差异有统计学意义(P<0.05)。ROC分析显示,外周血T淋巴细胞、IL-4及趋化因子CXCL13联合检查灵敏度为89.68%,特异度为91.11%,AUC=0.862(95%CI:0.806-0.933),均高于三指标单一检查(P<0.05)。结论外周血T淋巴细胞、IL-4及趋化因子CXCL13水平变化与神经梅毒患者病情密切联系,三者联合检测度对神经梅毒的早期识别诊断具有更好的灵敏度、特异度,在神经梅毒病情进展评估及临床指导上具有更好的应用价值。 展开更多
关键词 外周血T淋巴细胞 IL-4 趋化因子CXCL13 神经梅毒
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五味苦参肠溶胶囊联合沙利度胺片治疗难治性溃疡性结肠炎的疗效观察及对炎症因子、免疫功能和氧化应激的影响
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作者 韩莉 郭云霞 +1 位作者 张意兰 陈光耀 《中国合理用药探索》 CAS 2024年第5期67-73,共7页
目的:探究五味苦参肠溶胶囊联合沙利度胺片治疗难治性溃疡性结肠炎(UC)的疗效及对炎症因子、免疫功能和氧化应激的影响。方法:选取2018年6月~2022年6月于某院就诊的86例难治性UC患者为研究对象,采用随机数字表法分为对照组及观察组,每... 目的:探究五味苦参肠溶胶囊联合沙利度胺片治疗难治性溃疡性结肠炎(UC)的疗效及对炎症因子、免疫功能和氧化应激的影响。方法:选取2018年6月~2022年6月于某院就诊的86例难治性UC患者为研究对象,采用随机数字表法分为对照组及观察组,每组43例。对照组患者仅给予沙利度胺片治疗,观察组给予沙利度胺片联合五味苦参肠溶胶囊治疗,两组均连续治疗4周。观察并比较两组患者治疗前后的外周血T淋巴细胞亚群(CD3^(+)、CD4^(+)、CD8^(+)及CD4^(+)/CD8^(+))水平、炎症因子水平[超敏C反应蛋白(hs-CRP)、肿瘤坏死因子-α(TNF-α)、细胞间黏附分子-1(ICAM-1)、血管细胞黏附分子1(VCAM-1)及白介素-10(IL-10)]及氧化应激指标[超氧化物歧化酶(SOD)、丙二醛(MDA)]水平、改良Mayo内镜评分、临床疗效及临床症状(腹痛、腹泻、脓血便、肛门灼热)改善时间。结果:治疗后,两组患者CD3^(+)、CD4^(+)及CD4^(+)/CD8^(+)均较治疗前升高,且观察组高于对照组(P<0.05);CD8^(+)水平较治疗前降低,且观察组低于对照组(P<0.05);hs-CRP、TNF-α、ICAM-1及VCAM-1水平均较治疗前降低,且观察组低于对照组(P<0.05);IL-10水平较治疗前升高,且观察组高于对照组(P<0.05);SOD水平较治疗前升高,MDA水平较治疗前降低(P<0.05),且观察组的改善程度优于对照组(P<0.05)。两组患者改良Mayo内镜评分较治疗前降低,且观察组低于对照组(P<0.05)。观察组的临床治疗总有效率(93.02%)高于对照组(79.07%,P<0.05);腹痛、腹泻、脓血便以及肛门灼热等临床症状改善时间均短于对照组(P<0.05)。结论:与单用沙利度胺片相比,五味苦参肠溶胶囊联合沙利度胺片可进一步改善难治性UC患者的临床症状,缩短症状改善时间,调节患者体内外周血T淋巴细胞水平,改善炎症因子水平以及氧化应激水平,具有较好的治疗前景,值得临床推广。 展开更多
关键词 五味苦参肠溶胶囊 沙利度胺片 炎症因子 临床疗效 氧化应激 外周血T淋巴细胞
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外周血细胞计数比值及淋巴细胞亚群在类风湿关节炎病情评估中的价值
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作者 张璐 李慧芳 马海军 《河南医学研究》 CAS 2024年第13期2313-2317,共5页
目的探讨外周血细胞计数比值及淋巴细胞亚群在类风湿关节炎(RA)及合并间质性肺病(ILD)病情评估中的价值。方法回顾性分析2020年6—12月50例住院RA患者的一般资料、外周血细胞计数比值及淋巴细胞亚群检测结果。按28个关节疾病活动度评分(... 目的探讨外周血细胞计数比值及淋巴细胞亚群在类风湿关节炎(RA)及合并间质性肺病(ILD)病情评估中的价值。方法回顾性分析2020年6—12月50例住院RA患者的一般资料、外周血细胞计数比值及淋巴细胞亚群检测结果。按28个关节疾病活动度评分(DAS 28)分为高疾病活动度组(DAS 28>5.1分)及中低疾病活动度组(DAS 28≤5.1分)。另根据是否合并ILD,分为未合并ILD(RA-non-ILD)与合并ILD(RA-ILD)组。对比不同分组外周血细胞计数比值及淋巴细胞亚群的差异,并使用受试者工作特征(ROC)曲线评估外周血细胞计数比值及淋巴细胞亚群对RA的诊断评估价值。结果与中低疾病活动度组相比,RA高疾病活动度组的血小板-淋巴细胞比值(PLR)较高,淋巴细胞-单核细胞比值、总T淋巴细胞比率、总T淋巴细胞绝对计数、CD8^(+)T细胞及CD4^(+)T细胞绝对计数低于中低疾病活动度组(P<0.05)。PLR评估RA病情活动度的ROC曲线下面积(AUC)为0.722,95%CI为0.579~0.865。RA-non-ILD组与RA-ILD组外周血细胞计数比值及淋巴细胞亚群差异无统计学意义(P>0.05),各指标ROC曲线的AUC也均低于0.7。结论PLR对于RA疾病活动度的区分可能具有一定价值,其他各指标无论对于区分RA疾病活动度还是区分是否合并ILD都没有表现出明显潜力。 展开更多
关键词 类风湿关节炎 间质性肺病 外周血细胞计数比值 淋巴细胞亚群
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T淋巴细胞亚群、IL-6在胃癌患者中的表达及其与预后的相关性
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作者 周光婷 王刚 《国际医药卫生导报》 2024年第15期2585-2589,共5页
目的分析外周血T淋巴细胞亚群及白细胞介素-6(interleukin-6,IL-6)在胃癌患者中的表达,探究其与预后的相关性。方法选取2021年6月至2023年6月连云港市第二人民医院收治的106例胃癌患者为试验组,入院次日检测其外周血T淋巴细胞亚群(CD3^... 目的分析外周血T淋巴细胞亚群及白细胞介素-6(interleukin-6,IL-6)在胃癌患者中的表达,探究其与预后的相关性。方法选取2021年6月至2023年6月连云港市第二人民医院收治的106例胃癌患者为试验组,入院次日检测其外周血T淋巴细胞亚群(CD3^(+)、CD4^(+)、CD8^(+))及IL-6水平。选取同时段于连云港市第二人民医院进行体检的健康者80例为对照组,体检当日检测其外周血T淋巴细胞亚群及IL-6水平。比较两组T淋巴细胞亚群及IL-6水平。胃癌患者院外随访6个月,根据患者死亡、存活情况将其分为预后不良组(17例)、预后良好组(89例)。预后不良组男10例(58.82%),女7例(41.18%),年龄(60.47±5.89)岁;文化程度:中学及以上9例(52.94%),中学以下8例(47.06%)。预后良好组男55例(61.80%),女34例(38.20%),年龄(60.08±5.71)岁;文化程度:中学及以上32例(35.96%),中学以下57例(64.04%)。logistic回归分析影响胃癌患者预后的因素。采用受试者操作特征曲线(ROC)评估外周血T淋巴细胞亚群及IL-6预测胃癌患者预后的价值。采用t检验和χ^(2)检验。结果试验组CD3^(+)、CD4^(+)水平低于对照组[(55.27±8.72)%比(68.97±6.45)%、(26.42±10.21)%比(38.12±5.07)%],CD8^(+)、IL-6水平高于对照组[(33.36±6.02)%比(24.66±3.75)%、(6.97±3.29)ng/L比(3.62±1.01)ng/L],差异均有统计学意义(t=-11.821、-9.413、11.360、8.803,均P<0.05)。预后不良组CD3^(+)、CD4^(+)水平低于预后良好组[(45.12±10.06)%比(57.21±6.97)%、(20.01±10.12)%比(27.64±9.81)%],CD8^(+)、IL-6水平、肿瘤分期Ⅳ期患者占比高于预后良好组[(40.12±6.01)%比(32.07±5.12)%、(9.75±3.16)ng/L比(6.44±3.05)ng/L、70.59%(12/17)比32.58%(29/89)],差异有统计学意义(t=-6.068、-2.924、5.774、4.077,χ^(2)=8.692,均P<0.05)。logistic回归分析显示,肿瘤分期、CD3^(+)、CD8^(+)、IL-6水平是影响胃癌患者预后的因素(均P<0.05)。CD3^(+)、CD8^(+)、IL-6预测患者预后不良的ROC下面积分别为0.847、0.853、0.768。结论胃癌患者CD3^(+)、CD4^(+)低表达,CD8^(+)及IL-6高表达。CD3^(+)、CD8^(+)、IL-6水平是影响胃癌患者预后的因素。 展开更多
关键词 胃癌 外周血T淋巴细胞亚群 白细胞介素-6 预后
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慢性乙型肝炎者外周血SAA/CRP、NLR水平与HBV-DNA载量、病情程度的相关性分析
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作者 陈春燕 樊子勉 《昆明医科大学学报》 CAS 2024年第5期144-150,共7页
目的探究慢性乙型肝炎(chronic hepatitis B,CHB)患者外周血淀粉样蛋白A(serum amyloid A,SAA)与C反应蛋白(C-reactive protein,CRP)比值(SAA/CRP)、中性粒细胞与淋巴细胞比值(neutrophils lymphocytes ratio,NLR)水平与乙型肝炎病毒-... 目的探究慢性乙型肝炎(chronic hepatitis B,CHB)患者外周血淀粉样蛋白A(serum amyloid A,SAA)与C反应蛋白(C-reactive protein,CRP)比值(SAA/CRP)、中性粒细胞与淋巴细胞比值(neutrophils lymphocytes ratio,NLR)水平与乙型肝炎病毒-脱氧核糖核酸(HBV-DNA)载量及病情程度的相关性。方法选取2020年6月至2022年6月达州市中西医结合医院100例CHB患者作为研究组,根据病情程度分为轻度(单纯CHB,n=36)、中度(乙肝代偿期肝硬化,n=33)和重度(乙肝失代偿期肝硬化,n=31)。另选同期、同年龄段50例健康志愿者作为对照组,比较研究组不同病情程度、对照组一般资料、血清SAA/CRP、NLR水平,并比较研究组不同HBV-DNA载量患者血清SAA/CRP、NLR水平,分析CHB患者血清SAA/CRP、NLR水平与HBV-DNA载量、病情程度的相关性;所有患者均行抗病毒治疗,治疗24周,比较不同抗病毒疗效患者治疗前、治疗后12周、24周血清SAA/CRP、NLR水平及变化值,分析治疗前后血清SAA/CRP、NLR水平变化值预测疗效的价值。结果重度CHB患者血清SAA/CRP、NLR水平>中度CHB患者>轻度CHB患者>健康人群(P<0.05);高载量患者血清SAA/CRP、NLR水平>中载量患者>轻载量患者(P<0.05);CHB患者血清SAA/CRP、NLR水平与HBV-DNA载量(r=0.756、0.709)、病情程度(r=0.776、0.745)呈正相关(P<0.05);无应答患者治疗后12周、24周外周血SAA/CRP、NLR水平均高于应答患者,变化值均低于应答患者(P<0.05);SAA/CRP△1、NLR△1单独预测的AUC分别为0.752、0.773,联合预测△1的AUC为0.861;SAA/CRP△2、NLR△2单独预测的AUC分别为0.796、0.819,联合预测△2的AUC为0.967,大于联合预测△1的AUC(P<0.05)。结论CHB患者的SAA/CRP、NLR与CHB HBV-DNA载量及病情程度具有相关性,临床可通过其水平变化评估病情及预测预后。 展开更多
关键词 慢性乙型肝炎 乙型肝炎病毒-脱氧核糖核酸 外周血淀粉样蛋白A C反应蛋白 中性粒细胞 淋巴细胞
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PD⁃1抑制剂联合全身化疗治疗复发转移性宫颈癌的临床效果观察
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作者 王翠 李亚玲 《临床误诊误治》 CAS 2024年第2期76-81,共6页
目的探讨程序性细胞死亡受体-1(PD-1)抑制剂(卡瑞利珠单抗)免疫治疗联合全身化疗治疗复发转移性宫颈癌的临床效果。方法选择2019年2月—2021年6月定州市人民医院收治的复发转移性宫颈癌64例,依据随机数字表法分为研究组和对照组各32例... 目的探讨程序性细胞死亡受体-1(PD-1)抑制剂(卡瑞利珠单抗)免疫治疗联合全身化疗治疗复发转移性宫颈癌的临床效果。方法选择2019年2月—2021年6月定州市人民医院收治的复发转移性宫颈癌64例,依据随机数字表法分为研究组和对照组各32例。对照组给予紫杉醇联合顺铂全身化疗方案,研究组给予全身化疗方案+PD-1卡瑞利珠单抗免疫治疗。比较2组临床疗效,分析治疗前及治疗3个周期后鳞状细胞癌抗原(SCC)、外周血淋巴细胞/单核细胞(LMR)及血小板/淋巴细胞(PLR)指标水平及Kamofsky评分变化,并观察治疗期间毒性作用发生情况及随访期间患者总生存期。结果研究组总有效率、疾病控制率分别为93.75%(30/32)、96.88%(31/32),高于对照组的68.75%(22/32)、75.00%(24/32),差异有统计学意义(P<0.05)。治疗3个周期后,2组血清SCC、PLR水平较治疗前降低,LMR较治疗前升高,且研究组改善程度优于对照组(P<0.05)。治疗后,2组Kamofsky评分均较治疗前升高,且研究组高于对照组(P<0.05)。治疗后研究组1、2年生存率及总生存期高于或长于对照组(P<0.05)。2组毒性作用多数为1~2级。研究组血小板下降和转氨酶升高比例分别为37.50%(12/32)和28.12%(9/32),高于对照组的18.75%(6/32)和9.38%(3/32),差异有统计学意义(P<0.05);2组贫血、白细胞下降、恶心、腹泻、乏力等毒性作用发生率比较差异无统计学意义(P>0.05);研究组中发生反应性毛细血管增生症、甲状腺功能减退、皮疹、带状疱疹、过敏等经对症处理后症状消失。结论PD-1抑制剂联合全身化疗治疗复发转移性宫颈癌提高了临床效果、生存质量及生存率,延长生存期,改善了机体的炎症免疫反应状态,毒性作用较少,患者耐受性好。 展开更多
关键词 宫颈肿瘤 复发转移性 全身化疗 免疫治疗 程序性细胞死亡受体-1抑制剂 鳞状细胞癌抗原 外周血淋巴细胞/单核细胞 血小板/淋巴细胞
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