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1.
Medicine (Baltimore) ; 102(23): e34019, 2023 Jun 09.
Artigo em Inglês | MEDLINE | ID: mdl-37335631

RESUMO

Lung cancer in never smokers (LCNS) has been considered as a separate disease and the 7th cause of cancer-related death worldwide. However, limited research has focused on "female" cohorts, which have presented a higher incidence rate. In this study, the microarray data of lung cancer tissues derived from 54 female lung cancer patients, consisting of 43 nonsmokers and 11 smokers, were selected from GSE2109 dataset. A total of 249 differentially expressed genes (DEGs) including 102 up- and 147 down-regulated genes were identified and further analyzed for gene ontology (GO) terms and Kyoto encyclopedia of genes and genomes (KEGG) pathway enrichment. By constructing protein-protein interaction (PPI) network and calculating key modules, 10 hub genes were screened out. The module analysis of the PPI network presented that the progression of female LCNS was significantly associated with immune response as chemokine activity and lipopolysaccharide response, and these biological processes (BP) might be mediated by chemokine signaling pathway and cytokine-cytokine receptor interaction. Then, survival analysis by Kaplan-Meier (K-M) Plotter online platform presented down-regulated gene colony stimulating factor 2 receptor beta common subunit (CSF2RB) of female LCNS might be involved in poor clinical outcome. Female LCNS with high expression of CSF2RB might be relevant with relative risk reduction of mortality, longer median survival time and higher 5-year survival rate, while female LCNS with low expression of CSF2RB might be implicated in a poor clinical outcome. In short, our results support CSF2RB to be a candidate survival predictor for female LCNS.


Assuntos
Neoplasias Pulmonares , Fumantes , Humanos , Mapas de Interação de Proteínas/genética , Biologia Computacional/métodos , Neoplasias Pulmonares/genética , Regulação Neoplásica da Expressão Gênica , Quimiocinas/genética , Perfilação da Expressão Gênica/métodos
2.
Nat Commun ; 13(1): 2939, 2022 05 26.
Artigo em Inglês | MEDLINE | ID: mdl-35618720

RESUMO

We initiate the Westlake BioBank for Chinese (WBBC) pilot project with 4,535 whole-genome sequencing (WGS) individuals and 5,841 high-density genotyping individuals, and identify 81.5 million SNPs and INDELs, of which 38.5% are absent in dbSNP Build 151. We provide a population-specific reference panel and an online imputation server ( https://wbbc.westlake.edu.cn/ ) which could yield substantial improvement of imputation performance in Chinese population, especially for low-frequency and rare variants. By analyzing the singleton density of the WGS data, we find selection signatures in SNX29, DNAH1 and WDR1 genes, and the derived alleles of the alcohol metabolism genes (ADH1A and ADH1B) emerge around 7,000 years ago and tend to be more common from 4,000 years ago in East Asia. Genetic evidence supports the corresponding geographical boundaries of the Qinling-Huaihe Line and Nanling Mountains, which separate the Han Chinese into subgroups, and we reveal that North Han was more homogeneous than South Han.


Assuntos
Povo Asiático , Bancos de Espécimes Biológicos , Povo Asiático/genética , China , Genômica , Humanos , Projetos Piloto
4.
BMJ Open ; 11(6): e045564, 2021 06 28.
Artigo em Inglês | MEDLINE | ID: mdl-34183340

RESUMO

PURPOSE: The Westlake BioBank for Chinese (WBBC) pilot cohort is a population-based prospective study with its major purpose to better understand the effect of genetic and environmental factors on growth and development from adolescents to adults. PARTICIPANTS: A total of 14 726 participants (4751 males and 9975 females) aged 14-25 years were recruited and the baseline survey was carried out from 2017 to 2019. The pilot cohort contains rich range of information regarding of demographics and anthropometric measurements, lifestyle and sleep patterns, clinical and health outcomes. Visit the WBBC website for more information (https://wbbc.westlake.edu.cn/index.html). FINDINGS TO DATE: The mean age of the study samples were 18.6 years for males and 18.5 years for females, respectively. The mean height and weight were 172.9 cm and 65.81 kg for males, and 160.1 cm and 52.85 kg for females. Results indicated that the prevalence of underweight in female was much higher than male, but the prevalence of overweight and obesity in female was lower than male. The mean serum 25(OH)D level in the 14 726 young participants was 22.4±5.3 ng/mL, and male had a higher level of serum 25(OH)D than female, overall, 33.5% of the participants had vitamin D deficiency and even more participants suffered from vitamin D insufficiency (58.2%). The proportion of deficiency in females was much higher than that in males (41.8 vs 16.4%). The issue of underweight and vitamin D deficiency in young people should be paid attention, especially in females. These results reflected the fact that thinness and paler skin are preferred in modern aesthetics of Chinese culture. FUTURE PLANS: WBBC pilot is designed as a prospective cohort study and provides a unique and rich data set analysing health trajectories from adolescents to young adults. WBBC will continue to collect samples with old age.


Assuntos
Bancos de Espécimes Biológicos , Deficiência de Vitamina D , Adolescente , Índice de Massa Corporal , China/epidemiologia , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Masculino , Projetos Piloto , Prevalência , Estudos Prospectivos , Vitamina D , Adulto Jovem
5.
Immunopharmacol Immunotoxicol ; 40(2): 107-116, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29405080

RESUMO

OBJECTIVE: To explore the effect and mechanism of artesunate on γδ T cell-mediated antitumor immune responses against hepatoma carcinoma cells (HepG2) in vitro. METHODS: Human γδ T cells or HepG2 were respectively treated with artesunate, subjected to co-culture as appropriate, and the following assays were subsequently conducted: CCK8 to examine cell viability; LDH release assay to detect the killing effect of γδ T cells on HepG2 cells; flow cytometry to examine the expression of perforin (PFP) and granzyme B (GraB) of γδ T cells; ELISA to evaluate the levels of TGF-ß1 and IL-10 in the collected supernatant of HepG2 cells pretreated with artesunate; and Western blot analysis to examine Fas, FasL, STAT3, p-STAT3 expression of HepG2 cells induced by artesunate. Results: The results showed that the cytotoxicity effect of γδ T cells pretreated with artesunate on HepG2 cells was augmented via elevating the expression of GraB in γδ T cells. Furthermore, treatment with artesunate reversed the inhibition of HepG2 cells on γδ T cells by reducing the secretion of TGF-ß1 in HepG2 cells supernatant and enhanced the antitumor effect of γδ T cells against HepG2 cells through increasing the expression of Fas on HepG2 cells, which may be attributed to the inhibition of STAT3 signaling protein. CONCLUSION: Artesunate has several mechanisms for augmenting the antitumor immune responses mediated by γδ T cells. These results suggested artesunate may be an efficacious agent in the treatment of hepatocellular carcinoma.


Assuntos
Artemisininas/farmacologia , Carcinoma Hepatocelular/imunologia , Imunidade Celular/efeitos dos fármacos , Neoplasias Hepáticas/imunologia , Receptores de Antígenos de Linfócitos T gama-delta/imunologia , Linfócitos T/imunologia , Evasão Tumoral/efeitos dos fármacos , Artesunato , Carcinoma Hepatocelular/patologia , Células Hep G2 , Humanos , Neoplasias Hepáticas/patologia , Linfócitos T/patologia
6.
Exp Cell Res ; 362(1): 63-71, 2018 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-29104081

RESUMO

γδT cells are a distinct T-cell subset that display unique characteristics regarding T-cell receptor gene usage, tissue tropism and antigen recognition. Adoptive γδT cell transfer therapy has recently been gaining importance as an efficient approach in cancer immunotherapy. However, exploiting γδT cell response for tumour immunotherapy is a challenge due to cell numbers, activities and differentiation states that minimize the clinical therapeutic effects. Previous studies have indicated that the wnt/ß-catenin signalling pathway plays a crucial role in the differentiation, survival and enhancement of the immune response of T lymphocytes. In this study, we sought to evaluate whether the activation of the wnt/ß-catenin pathway through inhibition of glycogen synthase kinase-3ß (GSK-3ß) using 4,6-disubstituted pyrrolopyrimidine (TWS119) could be an efficient strategy to improve the proliferation, differentiation and cytolytic activity of γδT cells against colon cancer cells. Remarkably, we found that TWS119 significantly enhanced the proliferation and survival of γδT cells via activation of the mammalian target of rapamycin (mTOR) pathway, upregulation of the expression of the anti-apoptotic protein Bcl-2 and inhibition of cleaved caspase-3 in addition to the Wnt pathway. Our results also showed that enhancement of the cytolytic activity of γδT cells against human colon cancer cells by TWS119 was chiefly associated with upregulation of the expression of perforin and granzyme B in vitro and in vivo. Additionally, TWS119 can induce the expression of CD62L or CCR5 to generate a population of CD62L+γδT or CCR5+γδT cells in a dose-dependent manner. These findings suggested that TWS119 could be a useful complementary agent for improving γδT cell-based immunotherapy.


Assuntos
Proliferação de Células/efeitos dos fármacos , Neoplasias do Colo/terapia , Citotoxicidade Imunológica/efeitos dos fármacos , Imunoterapia Adotiva , Linfócitos Intraepiteliais/efeitos dos fármacos , Pirimidinas/farmacologia , Pirróis/farmacologia , Animais , Células Cultivadas , Neoplasias do Colo/imunologia , Neoplasias do Colo/patologia , Feminino , Células HCT116 , Humanos , Linfócitos Intraepiteliais/imunologia , Linfócitos Intraepiteliais/fisiologia , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Pirimidinas/uso terapêutico , Pirróis/uso terapêutico , Regulação para Cima/efeitos dos fármacos , Via de Sinalização Wnt/efeitos dos fármacos , Ensaios Antitumorais Modelo de Xenoenxerto
7.
Int Immunopharmacol ; 30: 57-61, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26655741

RESUMO

Thujone is a monoterpene ketone natural substance found mainly in wormwood and sage. Previous studies have shown that Thujone has various pharmacological effects, such as anti-tumor, analgesic, and insecticide. The effect of α-Thujone to human immune cells is still unknown. Our study focuses on investigating the effects and mechanism of α-Thujone to CD3AK (anti- CD3 antibody induced activated killer) cells proliferation and cytotoxicity to colon cancer cell lines. With cell proliferation and FCM assay, it is found that α-Thujone could significantly enhance CD3AK cell proliferation and expression of CD107a in a dose-dependent manner. The cytotoxicity to colon cancer cells detected by CCK-8 assay is also improved. The expressions of TNF-α and FasL detected with ELISA assay were not significantly changed. Mechanically, the study shows that α-Thujone could enhance the expression of p-ERK1/2 and p-Akt. In addition, α-Thujone has no cytotoxicity to HCT116 and SW620 cells proliferation. In a word, α-Thujone enhances CD3AK cell proliferation and cytotoxicity via the improvement of expression of CD107a, p-Akt and p-ERK1/2.


Assuntos
Vacinas Anticâncer/imunologia , Neoplasias do Colo/terapia , Imunoterapia Adotiva , Monócitos Matadores Ativados/efeitos dos fármacos , Monoterpenos/farmacologia , Anticorpos/metabolismo , Artemisia/imunologia , Monoterpenos Bicíclicos , Complexo CD3/imunologia , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Neoplasias do Colo/imunologia , Citotoxicidade Imunológica/efeitos dos fármacos , Humanos , Proteína 1 de Membrana Associada ao Lisossomo/metabolismo , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Monócitos Matadores Ativados/fisiologia , Fosforilação/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-akt/genética , Proteínas Proto-Oncogênicas c-akt/metabolismo , Salvia officinalis/imunologia
8.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 21(4): 1021-6, 2013 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-23998605

RESUMO

This study was aimed to investigate the effects of different stimulatory factors on proliferation and function of cytokine induced killer (CIK) cells. Peripheral blood mononuclear cells (PBMNC) were separated by Ficoll-Hypacue gradient. According to supplement of different stimulatory factors (CD28 mAb, IL-15 and IL-21), the experiment was divided into five groups:control group (CIK), CB28+IL-15+IL-21 group, IL-15+IL-21 group, CD28+IL-15 group and CD28+IL-21 group. Effects of different stimulatory factors on the proliferation of CIK cells were assayed by an automated hematology analyzer. Changes of granzyme B,perforin and CD107a were detected by flow cytometry. IL-10, IL-12, INF-γ and TNF-α were quantified by ELISA. Cytotoxicities on lung cancer cell line A549, breast adenocarcinoma cell line MFC-7 and human melanoma cell line HME1 were examined by lactate dehydrogenase release method. The results showed that there were significant differences among different groups. The highest proliferation index on days 10 was observed in group CD28mAb, IL-15 and IL-21(255.3 ± 6.3), which was higher than control group, IL-21+IL-15 group and CD28 mAb+IL-21 group (166.6 ± 13.5, 199.4 ± 15.0 and 228.8 ± 16.6) (P < 0.05). The expression of perforin in CD28 mAb+IL-15 group was higher than the other groups. The expression of perforin,GranB and CD107a of costimulatory groups was higher than control group. The cytotoxicities of CD28 mAb+IL-15 group on A549, MFC-7 and HME1 cells (82.2%, 59.3% and 70.6%) were much higher than that of control group (60.9%, 49.6% and 48.4%) (P < 0.05). The highest IFN-γsecretion was found in CD28 mAb, IL-15 and IL-21 groups. It is concluded that there are significant difference of proliferative capacity, cytokine secretion and cytotoxicity after being activated by different stimulatory factors. Adding corresponding stimulatory factors into the culture system displays a great value for target cells culture.


Assuntos
Proliferação de Células/efeitos dos fármacos , Células Matadoras Induzidas por Citocinas/citologia , Células Matadoras Induzidas por Citocinas/efeitos dos fármacos , Linhagem Celular Tumoral , Humanos , Interferon gama/metabolismo , Interleucina-10/metabolismo , Interleucina-12/metabolismo , Interleucina-15/farmacologia , Interleucinas/farmacologia , Fator de Necrose Tumoral alfa/metabolismo
9.
Int Immunopharmacol ; 16(2): 332-40, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23639256

RESUMO

Lupeol, a triterpene, was reported to possess beneficial effects as a therapeutic and preventive agent for a range of disorders. Many studies have confirmed that lupeol possesses strong activities such as antioxidative, antiinflammatory, antiarthritic, antimutagenic, and antimalarial, both in vitro and in vivo, and at its effective therapeutic doses exhibit no toxicity to normal cells and tissues. Lupeol was observed to inhibit the proliferation of gastric tumour cells in a dose-dependent manner, as assessed by MTT assay, and induce the proliferation of NK cells, as assessed by flow cytometry and Western blotting. The killing effect of NK cells on gastric tumour cells was assessed by LDH. Our experiment demonstrated that lupeol at appropriate concentrations could promote the proliferation of NK cells, inhibit the proliferation of gastric cancer cell lines BGC823, N87 and HGC27, and increase the killing effect of NK cells on gastric cancer cells. We speculated that lupeol might increase the expression of PFP, IFN-γ, and CD107a via the activation of PI3K/Akt and Wnt/ß-catenin signalling pathways. Lupeol could serve as a potential agent against gastric cancer; however, further in-depth in vivo studies are still required.


Assuntos
Antineoplásicos/farmacologia , Células Matadoras Naturais/efeitos dos fármacos , Triterpenos Pentacíclicos/farmacologia , Neoplasias Gástricas/imunologia , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Sobrevivência Celular/imunologia , Células Cultivadas , Citocinas/imunologia , Humanos , Interferon gama/imunologia , Células Matadoras Naturais/citologia , Células Matadoras Naturais/fisiologia , Proteína 1 de Membrana Associada ao Lisossomo/imunologia , Proteínas Citotóxicas Formadoras de Poros/imunologia , Proteínas Proto-Oncogênicas c-akt/imunologia , Neoplasias Gástricas/tratamento farmacológico , beta Catenina/imunologia
10.
Int Immunopharmacol ; 15(1): 6-14, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23174508

RESUMO

OBJECTIVE: To explore the effect and mechanism of Phloretin on human γδ T cells killing colon cancer SW-1116 cells. METHODS: γδ T cells were amplified in vitro from human peripheral blood mononuclear cells through isopentenyl pyrophosphate method (IPP). After cocultured different concentrations of Phloretin with γδ T cells or SW-1116 cells for 48h respectively, MTT assay was used to test the growth curve of these two cells; Flow cytometry to test the expression of Granzyme B (GraB), perforin (PFP), CD107a and IFN-γ of γδ T cells; Lactate dehydrogenase (LDH) release assay to test the cytotoxic activity of the γδ T cells on SW-1116 cells; and Western blot to test the Wnt3a expression of the γδ T cells. RESULTS: After cultured with IPP for ten days, the percentage of γδ T cells increased from 3.31±3.00% to 78.40±10.30%. Compared to the control group, when the concentration of Phloretin increased from 2.35µg/ml to 18.75µg/ml, it could significantly proliferate the γδ T cell growth (P<0.05) and inhibit the growth of SW-1116 cells in dose-response, and the expression of GraB, PFP, CD107a and Wnt3a significantly increased (P<0.05). Significant positive relationships were observed among CD107a and PFP, GraB, cytotoxicity (P<0.05). The percentage of IFN-γ producing γδ T cells treated with Phloretin was significantly higher than control group. CONCLUSION: Phloretin can enhance the killing effect of γδ T cells on SW-1116 cells; the mechanism may be that Phloretin could proliferate the γδ T cell growth, increase the expression of PFP and GraB, activate the Wnt signaling pathway, and produce higher level of IFN-γ. Indeed CD107a expression probably correlates quite well with antitumor activity.


Assuntos
Neoplasias do Colo/imunologia , Fatores Imunológicos/farmacologia , Floretina/farmacologia , Subpopulações de Linfócitos T/efeitos dos fármacos , Linfócitos T/efeitos dos fármacos , Adulto , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Granzimas/imunologia , Humanos , Interferon gama/imunologia , L-Lactato Desidrogenase/imunologia , Proteína 1 de Membrana Associada ao Lisossomo/imunologia , Perforina/imunologia , Subpopulações de Linfócitos T/imunologia , Linfócitos T/imunologia , Proteína Wnt3A/imunologia , Adulto Jovem
11.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 20(3): 579-82, 2012 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-22739159

RESUMO

The aim of this study was to investigate the inhibitory effect of Toll-like receptor 7 (TLR7) agonist gardiquimod on K562 cells. Human γδT cells from peripheral blood cells were amplified by isopentenyl pyrophosphate. The proliferation capacity of γδT cells and K562 cells were measured with MTT assay after treatment with different concentrations of gardiquimod. Cytotoxicity of γδT cells on K562 cells was detected by CCK-8 kit, and the intracellular expression of TLR7, cell cycle and apoptosis of K562 cells before and after treatment with gardiquimod were measured by flow cytometry. The results demonstrated that gardiquimod could significantly stimulate the proliferation of γδT cells, and inhibit proliferation of K562 cells under the concentration of 11.0 µg/ml for 48 h. The expression of TLR7 increased after treatment with gardiquimod. No apoptosis was observed, but there were significant changes in cell cycle, moreover the K562 cells treated with gardiquimod were more killed by γδT cells. It is concluded that the gardiquimod can inhibit the proliferation of K562 cells and enhance their sensitivity to killing activity of human γδT cells.


Assuntos
Aminoquinolinas/farmacologia , Ciclo Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Imidazóis/farmacologia , Receptor 7 Toll-Like/agonistas , Apoptose/efeitos dos fármacos , Humanos , Células K562
12.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 28(4): 367-70, 2012 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-22482405

RESUMO

AIM: To observe the costimulation of multiple activating factors effects on the proliferation and phenotype of T lymphocytes in vitro. METHODS: Peripheral blood mononuclear cells (PBMCs) were separated by fractionation on Ficoll-Hypaque gradient. According to adding different cytokines (CD3 mAb, CD28 mAb, IFN-γ, IL-1α, IL-2 and IL-15), the experiments were divided into seven groups. Effects of different cytokines on the proliferation of PBMC were counted by automated hematology analyzer five categories. The phenotypes (CD3, CD4, CD8, CD28, CD16, CD56(+);CD16, CD3(+);CD8(+);, CD3(+);CD4(+);, CD3(+); CD56(+);, CD45RO) expressing on the surface of costimulatory cells were detected by flow cytometry, and the cytotoxicity of costimulatory cells on SGC-7901, SW-1990 and SW-116 cell lines was examined by lactate dehydrogenase release method. RESULTS: The proliferation has significant difference when adding different cytokines into PBMCs culture system, the highestest proliferation multiples group is the one contains cytokines CD3, CD28, IFN-γ, IL-2, IL-1α, IL-15 and IL-21, which proliferation multiple is 255.3±6.3 at the tenth day of cell culture, obviously higher than the other culture systems which only contains CD3, IFN-γ and IL-2 (166.6±5.5) (P<0.05). Part of cells'phenotype changed when adding different activating factors. Without IL-15, the proportion of CD16(+);CD56(+);(NK) cells and CD3(+);CD56(+); cells was higher than the other groups; CD45RO(+); memory cells is most evident when delayed adding IL-15 and IL-21 for three days. The cytotoxicity of PBMCs cultured for ten days with different activating factors had significant difference, the highest was the one which delayed adding IL-15 and IL-21 for three days (76.2%, 60.3% and 70.6%, respectively.), higher than the cell culture groups containing CD3, IFN-γ and IL-2 (54.9%, 44.6% and 50.4%, respectively) (P<0.05). The cultured cells had the strongest cytotoxicity on SGC-7901 gastric adenocarcinoma cells. CONCLUSION: The PBMCs' proliferation, phenotype and cytotoxicity had significant difference after being activated by different stimulating factors, adding matching stimulating factors into the culture system have great value on cell-directed culture.


Assuntos
Proliferação de Células/efeitos dos fármacos , Citocinas/farmacologia , Linfócitos T/efeitos dos fármacos , Complexo CD3/metabolismo , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Sinergismo Farmacológico , Citometria de Fluxo , Humanos , Imunofenotipagem , Interferon gama/metabolismo , Interleucina-15/farmacologia , Interleucina-2/metabolismo , Interleucinas/farmacologia , L-Lactato Desidrogenase/metabolismo , Neoplasias/metabolismo , Neoplasias/patologia , Linfócitos T/metabolismo , Fatores de Tempo
13.
World J Emerg Med ; 3(4): 294-8, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-25215080

RESUMO

BACKGROUND: The effect of pituitary adenylate cyclase activating polypeptide (PACAP) during traumatic brain injury (TBI) and whether it can modulate secondary injury has not been reported previously. The present study evaluated the potential protective effects of ventricular infusion of PACAP in a rat model of TBI. METHODS: Male Sprague Dawley rats were randomly divided into 3 treatment groups (n=6, each): sham-operated, vehicle (normal saline)+TBI, and PACAP+TBI. Normal saline or PACAP (1 µg/5 µL) was administered intracerebroventricularly 20 minutes before TBI. Right parietal cortical contusion was produced via a weight-dropping method. Brains were extracted 24 hours after trauma. Histological changes in brains were examined by HE staining. The numbers of CD4(+) and CD8(+) T cells in blood and the spleen were detected via flow cytometry. RESULTS: In injured brain regions, edema, hemorrhage, inflammatory cell infiltration, and swollen and degenerated neurons were observed under a light microscope, and the neurons were disorderly arrayed in the hippocampi. Compared to the sham group, average CD4(+) CD8(-) lymphocyte counts in blood and the spleen were significantly decreased in rats that received TBI+vehicle, and CD4(-) CD8(+) were increased. In rats administered PACAP prior to TBI, damage was attenuated as evidenced by significantly increased CD4(+), and decreased CD8(+), T lymphocytes in blood and the spleen. CONCLUSION: Pretreatment with PACAP may protect against TBI by influencing periphery T cellular immune function.

15.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 26(3): 261-3, 266, 2010 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-20230693

RESUMO

AIM: To explore the effect of nimesulide on human gammadeltaT cell function. METHODS: gammadeltaT cells were cultured routinely, collected on the 9th day, and then induced with nimesulide at indicated concentrations (0.25 micromol/L, 0.5 micromol/L, 1 micromol/L, 2 micromol/L, 4 micromol/L, respectively). Twenty-four hours after induction, the supernatants were collected to detect IFN-gamma, TNF-alpha and IL-12, whereas the cells were assayed for perforin, granzyme B and NKG2D by flow cytometry (FCM) and for killing of gastric cancer cells by LDH. RESULTS: Nimesulide (1 micromol/L) caused gammadeltaT cells to express more of perforin and granzyme B (62.8% and 72.7%, respectively) than the control group (51.4% and 60.9%, respectively) (P<0.05). Likewise, nimesulide (1 micromol/L) enabled gammadeltaT cells to secret more of IFN-gamma and TNF-alpha (262.3 ng/L and 177.5 ng/L, respectively) than the control group (196.1 ng/L and 158.5 ng/L, respectively) (P<0.05). Nimesulide did not affect IL-12 secreting capability of gammadeltaT cells as compared with the control group (P>0.05). Nimesulide-stimulated gammadeltaT cells killed more of SGC-7901 and BCG-823 gastric cancer cells (73% and 70%, respectively) than the control group(54% and 53%, respectively) (P<0.05). CONCLUSION: Nimesulide made gammadeltaT cells to express more perforin and granzyme B and to secret more IFN-gamma and TNF-alpha into the supernatant, leading to higher killing rate of SGC-7901 and BCG-823 gastric cancer cells. The above data provides experimental basis on the clinical use of nimesulide to prevent and treat digestive tract tumors.


Assuntos
Citotoxicidade Imunológica/efeitos dos fármacos , Perforina/efeitos dos fármacos , Neoplasias Gástricas/imunologia , Sulfonamidas/farmacologia , Subpopulações de Linfócitos T/imunologia , Linhagem Celular Tumoral , Células Cultivadas , Granzimas/imunologia , Humanos , Interferon gama/imunologia , Perforina/imunologia , Subpopulações de Linfócitos T/enzimologia , Fator de Necrose Tumoral alfa/imunologia
16.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 24(10): 966-8, 2008 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-18845080

RESUMO

AIM: To explore the effect of aspirin on human's gammadeltaT cells killing digestive system tumor cell lines. METHODS: Use the isopentenyl pyrophosphate method to amplify human peripheral blood gammadeltaT cells in vitro. Various concentrations of aspirin were used to induce gammadeltaT cells and digestive system tumor cells SGC-7901, SW-1990, SW-480, SW-1116, LOVO cells lines, LDH assays was used to measure the cytotoxic activity of gammadeltaT cells, flow cytometry analysis the apoptosis percentage of before and after induced gammadeltaT cells and SGC-7901, SW-1990, SW-480, SW-1116, LOVO cell lines. RESULTS: gammadeltaT cells were cultivated for ten days which proliferation ratio increase from 4.21% to 70.35%. When gammadeltaT cells induced via aspirin concentrations rang from 0.4 mmol/L to 0.8 mmol/L which cytotoxic activity on the five kinds of tumor cell lines was the highest, if aspirin's concentration surpassing 3.2 mmol/L, cytotoxic activity of gammadeltaT cells present decrease tendency. SGC-7901, SW-1990, SW-480, SW-1116, LOVO cells lines were induced by different concentrations of aspirin for 24 hours, just SW-480, SW-1116 and LOVO were enhanced as far as the cytotoxic activity of gammadeltaT cells on these cell lines was concerned, other groups and control group have no notable changed. The apoptosis percentage of gammadeltaT cells(52.71%) were induced by aspirin which concentration was 3.2 mmol/L, which was strikingly higher than SGC-7901, SW-1990, SW-480, SW-1116, LOVO cells lines, (respectively 7.88%, 8.89%, 6.21%, 4.47% and 3.67%). CONCLUSION: When aspirin's concentration for clinical routine used can enhance the effect of gammadeltaT cells killing the tumor cells, if surpassing this concentration can obvious inhibited the proliferation capacity and cytotoxic activity of gammadeltaT cells and augment apoptosis ratio, however, it is not obvious for digestive tract tumor lines.


Assuntos
Apoptose/efeitos dos fármacos , Aspirina/farmacologia , Neoplasias do Sistema Digestório/tratamento farmacológico , Neoplasias do Sistema Digestório/imunologia , Linfócitos T/efeitos dos fármacos , Linfócitos T/imunologia , Linhagem Celular Tumoral , Citometria de Fluxo , Humanos
17.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 11(3): 278-81, 2003 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-12844413

RESUMO

To investigate the specific antileukemia effect of dendritic cells (DC) pulsed with chronic myelogenous leukemic lysate antigen (CLA), dendritic cells from patients with chronic myelogenous leukemia (CML) were pulsed by CLA, and then cocultured with cytokine-induced killer (CIK) cells from CML patients (CIK + CLA-DC group). The cytotoxic activity in vitro was measured by using a lactate dehydrogenase release assay, and compared with CIK + DC, CIK and CIK + CLA groups. The results showed that under an effector-target ratio of 25:1, the cytotoxic activity of CIK + CLA-DC, CIK + DC, CIK and CIK + CLA groups against autologous CML cells was (68.8 +/- 14.2)%, (52.5 +/- 9.4)%, (20.6 +/- 7.5)% and (24.2 +/- 8.7)%, respectively. CIK + CLA-DC group displayed a strongest cytotoxic activity. When K562 and Raji cells acted as target cells and CIK as effectors, the cytotoxic activity against autologous CML cells in CIK + CLA-DC group (68.8 +/- 14.2)% was much higher than that against K562 cells (14.6 +/- 6.2)% and Raji cells (12.7 +/- 10.2)%, respectively. In conclusion, coculture of CIK cells with DC led to a significant increase in cytotoxic activity. The cytotoxicity could be further increased by DC pulse with CML cell lysate antigen, and cytotoxicity mediated by CML lysate antigen possess stronger specificity.


Assuntos
Antígenos de Neoplasias/imunologia , Células Dendríticas/imunologia , Leucemia Mielogênica Crônica BCR-ABL Positiva/imunologia , Complexo CD3/análise , Antígenos CD4/análise , Antígeno CD56/análise , Antígenos CD8/análise , Divisão Celular/imunologia , Técnicas de Cocultura , Citotoxicidade Imunológica , Células Dendríticas/citologia , Humanos , Imunofenotipagem , Células K562 , Células Matadoras Ativadas por Linfocina/citologia , Células Matadoras Ativadas por Linfocina/imunologia , Leucemia Mielogênica Crônica BCR-ABL Positiva/patologia , Células Tumorais Cultivadas
18.
Ai Zheng ; 21(7): 797-801, 2002 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-12479111

RESUMO

BACKGROUND & OBJECTIVE: Cytokine-induced killer (CIK) cells have the characteristics of rapid proliferation, high efficiency, and broad spectrum in killing of tumor cells. However, there was few report about its clinical application on treatment for cancer patients. The current study was designed to evaluate the effect of adoptive transfer of autologous CIK cells on the patients with advanced malignant tumor. METHODS: Peripheral blood mononuclear cells of the patients with advanced malignant tumor were separated by fractionation on Ficoll-Hypaque gradient, then cultured in the medium containing IFN-gamma, IL-2, and CD3McAb for 7 days in vitro, and than the cultured auto-CIK cells were transfused back to the patients. The numbers of transferred CIK cells per patient were 5-15 x 10(9) in one course of treatment. Among these patients, 47 cases received chemotherapy, 3 cases received radiotherapy before CIK cells transfusion. The interval between chemoradiotherapy and immunotherapy was over 2 to 4 weeks. RESULTS: Among 63 patients receiving CIK cells immunotherapy, the total effective rate (PR + MR) was 44.46% (28). In the patients with increasing of CEA level in serum, 14 cases showed reduction of serum CEA and 1 cases remained increasing after the treatment with CIK cell. In the patients with increasing of AFP level in serum, similarly, 9 cases showed reduction of serum AFD and 1 case remained increasing. The absolute members of CD3, CD4, and CD8T cells increased to over 45% after being treated with CIK cells. Among treated patients, the appetite of 51 cases and performance and sleep of 32 cases got improved. Among 18 cases, 13 cases showed the pain relief. CONCLUSION: Adoptive immunotherapy of auto-CIK cells can significantly enhance cellular immune functions and improve subjective symptoms, but without side effects, so this is a safe and effective treatment for the patients with malignant tumor.


Assuntos
Citocinas/farmacologia , Imunoterapia Adotiva , Células Matadoras Naturais/efeitos dos fármacos , Neoplasias/terapia , Adulto , Idoso , Feminino , Humanos , Células K562 , Células Matadoras Naturais/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias/patologia , Subpopulações de Linfócitos T/patologia , Resultado do Tratamento
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