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1.
J Cell Mol Med ; 28(8): e18211, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38613352

RESUMO

Chaihu Shugan San (CSS) is a well-known traditional herbal formula that has the potential to ameliorate hepatocellular carcinoma (HCC); however, its mechanism of action remains unknown. Here, we identified the key targets of CSS against HCC and developed a prognostic model to predict the survival of patients with HCC. The effect of CSS plus sorafenib on HCC cell proliferation was evaluated using the MTT assay. LASSO-Cox regression was used to establish a three-gene signature model targeting CSS. Correlations between immune cells, immune checkpoints and risk score were determined to evaluate the immune-related effects of CSS. The interactions between the components and targets were validated using molecular docking and Surface Plasmon Resonance (SPR) assays. CSS and sorafenib synergistically inhibited HCC cell proliferation. Ten core compounds and 224 targets were identified using a drug compound-target network. The prognostic model of the three CSS targets (AKT1, MAPK3 and CASP3) showed predictive ability. Risk scores positively correlated with cancer-promoting immune cells and high expression of immune checkpoint proteins. Molecular docking and SPR analyses confirmed the strong binding affinities of the active components and the target genes. Western blot analysis confirmed the synergistic effect of CSS and sorafenib in inhibiting the expression of these three targets. In conclusion, CSS may regulate the activity of immune-related factors in the tumour microenvironment, reverse immune escape, enhance immune responses through AKT1, MAPK3, and CASP3, and synergistically alleviate HCC. The co-administration of sorafenib with CSS has a strong clinical outlook against HCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Sorafenibe/farmacologia , Caspase 3 , Simulação de Acoplamento Molecular , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Microambiente Tumoral
2.
Mol Cancer Ther ; 2024 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-38490257

RESUMO

Carcinoembryonic antigen related cell adhesion molecules (CEACAMs), such as carcinoembryonic antigen (CEA) and the oncofetal glycoprotein family, are tumor markers. The CEACAMs consist of 12 different human CEACAMs and 5 different murine CEACAMs. The CEACAM family of proteins participates in multiple biological processes that include the immune response, angiogenesis, and cancer. CEACAMs play a significant role in cancer initiation and development. Increasing evidence suggests that family members may be new cancer biomarkers and targets in that CEACEAMs tend to be aberrantly expressed and therefore may have potential diagnostic and therapeutic importance. This review systematically summarizes the biogenesis, biological properties, and functions of CEACAMs, with a focus on their relationship with cancer and potential clinical application. As our knowledge of the relationships among CEACAMs and cancer increases, and as our understanding of the involved molecular mechanisms improves, new therapeutic strategies will evolve for cancer prevention and treatment of cancer patients.

3.
Cell Oncol (Dordr) ; 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38315286

RESUMO

BACKGROUND: Cancer immunotherapy provides durable response and improves survival in a subset of head and neck squamous cell carcinoma (HNSC) patients, which may due to discriminative tumor microenvironment (TME). Epigenetic regulations play critical roles in HNSC tumorigenesis, progression, and activation of functional immune cells. This study aims to identify an epigenetic signature as an immunophenotype indicator of durable clinical immunotherapeutic benefits in HNSC patients. METHODS: Unsupervised consensus clustering approach was applied to distinguish immunophenotypes based on five immune signatures in The Cancer Genome Atlas (TCGA) HNSC cohort. Two immunophenotypes (immune 'Hot' and immune 'Cold') that had different TME features, diverse prognosis, and distinct DNA methylation patterns were recognized. Immunophenotype-related methylated signatures (IPMS) were identified by the least absolute shrinkage and selector operation algorithm. Additionally, the IPMS score by deconvolution algorithm was constructed as an immunophenotype classifier to predict clinical outcomes and immunotherapeutic response. RESULTS: The 'Hot' HNSC immunophenotype had higher immunoactivity and better overall survival (p = 0.00055) compared to the 'Cold' tumors. The immunophenotypes had distinct DNA methylation patterns, which was closely associated with HNSC tumorigenesis and functional immune cell infiltration. 311 immunophenotype-related methylated CpG sites (IRMCs) was identified from TCGA-HNSC dataset. IPMS score model achieved a strong clinical predictive performance for classifying immunophenotypes. The area under the curve value (AUC) of the IPMS score model reached 85.9% and 89.8% in TCGA train and test datasets, respectively, and robustness was verified in five HNSC validation datasets. It was also validated as an immunophenotype classifier for predicting durable clinical benefits (DCB) in lung cancer patients who received anti-PD-1/PD-L1 immunotherapy (p = 0.017) and TCGA-SKCM patients who received distinct immunotherapy (p = 0.033). CONCLUSIONS: This study systematically analyzed DNA methylation patterns in distinct immunophenotypes to identify IPMS with clinical prognostic potential for personalized epigenetic anticancer approaches in HNSC patients. The IPMS score model may serve as a reliable epigenome prognostic tool for clinical immunophenotyping to guide immunotherapeutic strategies in HNSC.

4.
BMC Med ; 21(1): 449, 2023 11 20.
Artigo em Inglês | MEDLINE | ID: mdl-37981714

RESUMO

BACKGROUND: The immunologic milieu at the maternal-fetal interface has profound effects on propelling the development of the fetal brain. However, accessible epidemiological studies concerning the association between placental inflammatory cytokines and the intellectual development of offspring in humans are limited. Therefore, we explored the possible link between mRNA expression of inflammatory cytokines in placenta and preschoolers' cognitive performance. METHODS: Study subjects were obtained from the Ma'anshan birth cohort (MABC). Placental samples were collected after delivery, and real-time quantitative polymerase chain reaction (RT-qPCR) was utilized to measure the mRNA expression levels of IL-8, IL-1ß, IL-6, TNF-α, CRP, IFN-γ, IL-10, and IL-4. Children's intellectual development was assessed at preschool age by using the Wechsler Preschool and Primary Scale of Intelligence, Fourth Edition (WPPSI-IV). Multiple linear regression and restricted cubic spline models were used for statistical analysis. RESULTS: A total of 1665 pairs of mother and child were included in the analysis. After adjusting for confounders and after correction for multiple comparisons, we observed that mRNA expression of IL-8 (ß = - 0.53; 95% CI, - 0.92 to - 0.15), IL-6 (ß = - 0.58; 95% CI, - 0.97 to - 0.19), TNF-α (ß = - 0.37; 95% CI, - 0.71 to - 0.02), and IFN-γ (ß = - 0.31; 95% CI, - 0.61 to - 0.03) in the placenta was negatively associated with preschoolers' full scale intelligence quotient (FSIQ). Both higher IL-8 and IL-6 were associated with lower children's low fluid reasoning index (FRI), and higher IFN-γ was associated with lower children's working memory index (WMI). After further adjusting for confounders and children's age at cognitive testing, the integrated index of six pro-inflammatory cytokines (index 2) was found to be significantly and negatively correlated with both the FSIQ and each sub-dimension (verbal comprehension index (VCI), visual spatial index (VSI), FRI, WMI, processing speed index (PSI)). Sex-stratified analyses showed that the association of IL-8, IFN-γ, and index 2 with children's cognitive development was mainly concentrated in boys. CONCLUSIONS: Evidence of an association between low cognitive performance and high expression of placental inflammatory cytokines (IL-8, IL-6, TNF-α, and IFN-γ) was found, highlighting the potential importance of intrauterine placental immune status in dissecting offspring cognitive development.


Assuntos
Citocinas , Fator de Necrose Tumoral alfa , Gravidez , Masculino , Pré-Escolar , Humanos , Feminino , Citocinas/genética , Estudos de Coortes , Interleucina-6 , Interleucina-8 , Placenta , China , Cognição
5.
Front Endocrinol (Lausanne) ; 14: 1182049, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37810887

RESUMO

Background: Studies suggest that thyroid peroxidase antibody (TPOAb) positivity exposure during pregnancy may contribute to changes in placental morphology and pathophysiology. However, little is known about the association of maternal TPOAb during pregnancy with placental morphology and cytokines. This study focuses on the effect of repeated measurements of maternal TPOAb during pregnancy on the placental morphology and cytokines. Methods: Based on Ma'anshan Birth Cohort (MABC) in China, maternal TPOAb levels were retrospectively detected in the first, second and third trimesters. Placental tissues were collected 30 minutes after childbirth, placental morphological indicators were obtained by immediate measurement and formula calculation, and cytokine mRNA expression was detected by real-time quantitative polymerase chain reaction (RT-qPCR) afterward. Generalized linear models and linear mixed models were analyzed for the relationships of maternal TPOAb in the first, second and third trimesters with placental indicators. Results: Totally 2274 maternal-fetal pairs were included in the analysis of maternal TPOAb levels and placental morphology, and 2122 pairs were included in that of maternal TPOAb levels and placental cytokines. Maternal TPOAb levels in early pregnancy were negatively associated with placental length, thickness, volume, weight and disc eccentricity, while positively correlated with placental IL-6, TNF-α, CRP, CD68, MCP-1, IL-10, HO-1, HIF-1α and GRP78. In mid-pregnancy, maternal TPOAb levels were negatively correlated with placental length, width and area. In late pregnancy, maternal TPOAb levels were negatively correlated with placental length, area, volume and weight. Repeated measures analysis showed that maternal TPOAb positivity tended to increase placental TNF-α, CD68 and MCP-1 while decreasing placental length, width and area than TPOAb negativity. Repeated measures analysis showed that maternal TPOAb levels were positively correlated with placental IL-6, TNF-α, CD68, MCP-1, IL-10, HO-1, HIF-1α and GRP78, while negatively correlated with placental length, area, volume, weight, and disc eccentricity. Conclusion: There may be trimester-specific associations between maternal TPOAb levels and placental morphology and inflammatory and oxidative stress responses. The effect of maternal TPOAb levels on placental morphology is present throughout pregnancy. Early pregnancy may be the critical period for the association between maternal TPOAb levels and placental inflammatory and oxidative stress responses.


Assuntos
Iodeto Peroxidase , Placenta , Gravidez , Humanos , Feminino , Placenta/metabolismo , Interleucina-10/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , Chaperona BiP do Retículo Endoplasmático , Interleucina-6/metabolismo , Estudos Retrospectivos , Citocinas/metabolismo , Estresse Oxidativo
6.
Front Immunol ; 14: 1167562, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37228621

RESUMO

Background: The prevalence of food allergy (FA) is increasing. Decreases in the diversity of gut microbiota may contribute to the pathogenesis of FA by regulating IgE production of B cells. Intermittent fasting (IF) is a popular diet with the potential to regulate glucose metabolism, boosting immune memory and optimizing gut microbiota. The potential effect of long-term IF on the prevention and treatment of FA is still unknown. Methods: Two IF protocols (16 h fasting/8 h feeding and 24 h fasting/24 h feeding) were conducted on mice for 56 days, while the control mice were free to intake food (free diet group, FrD). To construct the FA model, all mice were sensitized and intragastrical challenged with ovalbumin (OVA) during the second half of IF (day 28 to day 56). Rectal temperature reduction and diarrhea were recorded to evaluate the symptoms of FA. Levels of serum IgE, IgG1, Th1/Th2 cytokines, mRNA expression of spleen T cell related transcriptional factors, and cytokines were examined. H&E, immunofluorescence, and toluidine blue staining were used to assess the structural changes of ileum villi. The composition and abundance of gut microbiota were analyzed by 16srRNA sequencing in cecum feces. Results: The diarrhea score and rectal temperature reduction were lower in the two fasting groups compared to the FrD groups. Fasting was associated with lower levels of serum OVA-sIgE, OVA-sIgG1, interleukin (IL)-4 and IL-5, and mRNA expression of IL-4, IL-5, and IL-10 in the spleen. While no significant association was observed in interferon (IFN)-γ, tumor necrosis factor (TNF)-α, IL-6, IL-2 levels. Less mast cell infiltration in ileum was observed in the 16h/8h fasting group compared to the FrD group. ZO-1 expression in the ileum of the two fasting groups was higher in IF mice. The 24h/24h fasting reshaped the gut microbiota, with a higher abundance of Alistipes and Rikenellaceae strains compared to the other groups. Conclusion: In an OVA-induced mice FA model, long-term IF may attenuate FA by reducing Th2 inflammation, maintaining the integrity of the intestinal epithelial barrier, and preventing gut dysbiosis.


Assuntos
Hipersensibilidade Alimentar , Microbioma Gastrointestinal , Camundongos , Animais , Jejum Intermitente , Modelos Animais de Doenças , Interleucina-5 , Hipersensibilidade Alimentar/etiologia , Citocinas/metabolismo , Imunoglobulina E , Diarreia , RNA Mensageiro
7.
Front Med (Lausanne) ; 10: 1169345, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37089587

RESUMO

Background: This study aimed to compare the use of the STRIVE Hi technique with 70 and 100% oxygen concentrations in children with 1st or 2nd degree laryngeal obstruction undergoing suspension laryngoscopic surgery. Methods: Children aged 1 month to 6 years scheduled for suspension laryngoscopic surgery with spontaneous respiration were randomly divided into the 70% oxygen concentration group (HFNO70% group) and the 100% oxygen concentration group (HFNO100% group). The data recorded for all the patients included age and sex, comorbidities, preoperative physiological status, methods of induction and maintenance of anesthesia, course of the disease and surgical options, and duration of operation. The primary endpoint was the lowest oxygen saturations during the surgery. The secondary endpoints included the partial pressure of oxygen PaO2, the arterial pressure of carbon dioxide PaCO2, the peak transcutaneous carbon dioxide PtcCO2, and the incidence of desaturation (defined as SpO2 < 90%) or hypercarbia (PtcCO2 > 65 mmHg). Results: A total of 80 children with 1st or 2nd degree laryngeal obstruction were included in the analysis. The median [IQR (range)] duration of spontaneous ventilation using STRIVE Hi was 52.5 [40-60 (30-170)]min and 62.5 [45-81 (20-200)]min in the HFNO 70% and HFNO 100% groups, respectively (p = 0.99); the lowest oxygen saturation recorded during the operation was 97.8 ± 2.1% and 96.8 ± 2.5%, respectively (p = 0.053); the mean PaO2 at the end of surgery was 184.6 ± 56.3 mmHg and 315.2 ± 101.3 mmHg, respectively (p < 0.001); and the peak transcutaneous CO2 was 58.0 ± 13.0 mmHg and 60.4 ± 10.9 mmHg, respectively (p = 0.373), despite a long operation time. Conclusion: STRIVE Hi had a positive effect on children undergoing tubeless laryngeal surgery with spontaneous ventilation, and for children with 1st or 2nd degree laryngeal obstruction, there was no significant difference in maintaining the intraoperative oxygenation between the 70 and 100% oxygen concentration groups. The 100% oxygen concentration group showed significant hyperoxia, which has been proven to be associated with multiple organ damage. Using a relatively lower oxygen concentration of 70% can effectively reduce the hazards associated with hyperoxia compared to 100% oxygen concentration. Clinical trial registration: [www.chictr.org.cn], identifier [CHICTR2200064500].

8.
Ying Yong Sheng Tai Xue Bao ; 33(7): 2009-2016, 2022 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-36052806

RESUMO

The imbalance of regional development is one of the important obstacles for the implementation of regio-nal coordinated development strategy. Based on the panel data of 41 cities in the Yangtze River Delta from 2010 to 2019, the regional coordinated development index system with five subsystems was constructed, including economic development, science and education, infrastructure, people's life, and resource and environment. With the help of GeoDa and ArcGIS software, we used measurement model of regional coordinated development and method of exploratory spatial data analysis to analyze the temporal and spatial variations and internal correlation of various elements of regional coordinated development in the Yangtze River Delta. The results showed that, from the perspective of regional development, the coordination of regional development in the Yangtze River Delta had increased annually from 2010 to 2019. The level of economic development and science and education in Shanghai and Suzhou was ahead of other cities, while the development coordination of Northwest Anhui, Zhoushan and Huangshan was weaker than other cities. The order of average autocorrelation degree of each subsystem from high to low in the Yangtze River Delta from 2010 to 2019 was people's life, economic development, resource and environment, science and education, and infrastructure. Among them, the global Moran's index (Moran I) of economic development and science and education subsystem showed a downward trend, while science and education subsystem showed no significant correlation. Moran I of infrastructure subsystem was mostly at the low level with a great fluctuation in different years. People's life had obvious spatial characteristics of high-high and low-low agglomeration. The global Moran I of resources and environment showed a pattern of "V" distribution. Economic development and science and education were the two factors most closely related to regional coordinated development.


Assuntos
Desenvolvimento Econômico , Rios , China , Cidades , Humanos , Rios/química , Análise Espacial
9.
World J Gastroenterol ; 27(7): 624-640, 2021 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-33642833

RESUMO

BACKGROUND: The incidence of mixed neuroendocrine-non-neuroendocrine neoplasms (MiNEN) is low. To improve our understanding of this rare tumor type and optimally guide clinical treatment, associated risk factors, clinical manifestations, and prognosis must be explored. AIM: To identify risk factors that influence the prognosis of patients with gastroenteropancreatic MiNEN (GEP-MiNEN). METHODS: We retrospectively analyzed the clinical data of 46 patients who were diagnosed with GEP-MiNEN at the First Affiliated Hospital of Bengbu Medical College (Anhui, China) between January 2013 and December 2017. Risk factors influencing the prognosis of the patients were assessed using Kaplan-Meier curves and cox regression models. We compared the results with 55 randomly selected patients with gastroenteropancreatic GEP neuroendocrine tumors, 47 with neuroendocrine carcinomas (NEC), and 58 with poorly differentiated adenocarcinoma. RESULTS: Among the 46 patients with GEP-MiNEN, thirty-five had gastric tumors, nine had intestinal tumors (four in the small intestine and five in the colon and rectum), and two had pancreatic tumors. The median age of the patients was 66 (41-84) years, and the male-to-female ratio was 2.83. Thirty-three (71.7%) patients had clinical stage III and IV cancers. Distant metastasis occurred in 14 patients, of which 13 had metastasis to the liver. The follow-up period was 11-72 mo, and the median overall survival was 30 mo. Ki-67 index ≥ 50%, high proportion of NEC, lymph node involvement, distant metastasis, and higher clinical stage were independent risk factors affecting the prognosis of patients with GEP-MiNEN. The median overall survival was shorter for patients with NEC than for those with MiNEN (14 mo vs 30 mo, P = 0.001), but did not significantly differ from those with poorly differentiated adenocarcinoma and MiNEN (30 mo vs 18 mo, P = 0.453). CONCLUSION: A poor prognosis is associated with rare, aggressive GEP-MiNEN. Ki-67 index, tumor composition, lymph node involvement, distant metastasis, and clinical stage are important factors for patient prognosis.


Assuntos
Carcinoma Neuroendócrino , Neoplasias Intestinais , Tumores Neuroendócrinos , Neoplasias Pancreáticas , Neoplasias Gástricas , Idoso , Idoso de 80 Anos ou mais , China/epidemiologia , Feminino , Humanos , Neoplasias Intestinais/epidemiologia , Neoplasias Intestinais/terapia , Masculino , Tumores Neuroendócrinos/epidemiologia , Tumores Neuroendócrinos/terapia , Neoplasias Pancreáticas/epidemiologia , Prognóstico , Estudos Retrospectivos , Neoplasias Gástricas/epidemiologia , Neoplasias Gástricas/terapia
10.
Cancer Gene Ther ; 28(7-8): 875-891, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-32978504

RESUMO

Hepatocellular carcinoma (HCC) is recognized as the most common malignancy of the liver in adults. Many human cancers have been associated with the oncogenic activation of the Wnt/ß-catenin signaling pathway. The secreted frizzled-related proteins (sFRPs) function as negative regulators of the Wnt signaling and have important implications in carcinogenesis. This study aims to investigate the possible regulatory effects of sFRP3 on the Wnt/ß-catenin signaling pathway and their interactions in HCC occurrence. Firstly, sFRP3 expression was quantified in the collected cancer and adjacent normal tissue samples from HCC patients. The lowly expressed sFRP3 in HCC tissues was found to be correlated with HCC development. The expression of sFRP3 was regulated by a lentivirus-based packaging system, and the Wnt/ß-catenin signaling pathway was inactivated by DDK-1 in HepG2 cells. The expressions of Wnt1, ß-catenin and the nuclear translocation of ß-catenin were determined, both of which were down-regulated by sFRP3 overexpression. CCK8 assay, EdU staining, Colony formation assay, flow cytometry, scratch test and Transwell assay were employed to test cell viability, proliferation, cell cycle, apoptosis, migration and invasion, respectively. Overexpressed levels of sFRP3 were found to produce a reduction in MMP-2, MMP-7, MMP-9, PCNA, Ki67, and Bcl-2 expressions but an increase in the expressions of caspase-3 and Bax. In addition, overexpression of sFRP3 inhibited cell proliferation, migration, invasion, and colony formation, but promoted cell cycle arrest and cell apoptosis in HCC cells. The addition of the Wnt/ß-catenin signaling pathway inhibitor, DKK-1, reversed the contributory effect of sFRP3 silencing on HCC development. Lastly, in vivo tumor formation was inhibited by enforced sFRP3 expressions. The obtained results suggested that sFRP3 acts as an anti-oncogene in HCC by inhibiting the activation of the Wnt/ß-catenin signaling pathway.


Assuntos
Carcinoma Hepatocelular/genética , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , Neoplasias Hepáticas/genética , Via de Sinalização Wnt/genética , Adulto , Idoso , Proliferação de Células , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mutação
11.
Med Oncol ; 34(3): 32, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28132115

RESUMO

Esophageal cancer is one of the most common malignant tumors in the world, and its incidence is the eighth highest; meanwhile, its fatality rate is the sixth highest. The PI3K/Akt/mTOR signaling pathway plays a required role in human cancer, including cell survival, metabolism and migration. As a kind of important scaffold protein in mTORC2, RICTOR has showed over-expression in several malignancies like melanoma and endometrial cancer. In this research, we selected 201 cases of paraffin specimens from patients diagnosed as esophageal squamous cell carcinoma after surgical treatment and then estimated the RICTOR expression in each esophageal squamous cell carcinoma tissue by using the immunohistochemical streptavidin-peroxidase technique. Then, we analyzed the association among the clinicopathological parameters, the prognosis and the expression of RICTOR. Eventually, we found that the percentage of RICTOR-positive expression in 201 ESCC samples is 70.6% (142/201) and the figure for RICTOR-negative or RICTOR-doubtful-positive expression is 29.4% (59/201). RICTOR expression positively correlated with ESCC patients' AJCC stage (P = 0.011) and showed an opposite trend with survival (P = 0.007). Based on univariate and multivariate Cox proportional hazards regression analysis, RICTOR-positive expression, AJCC staging III or IV and nodal metastasis are prognostic factors and the former two are independent risk factors for ESCC. In conclusion, our study showed potential that targeting RICTOR may represent new effective inhibitors for treating ESCC.


Assuntos
Carcinoma de Células Escamosas/metabolismo , Proteínas de Transporte/biossíntese , Neoplasias Esofágicas/metabolismo , Biomarcadores Tumorais/biossíntese , Carcinoma de Células Escamosas/patologia , Neoplasias Esofágicas/patologia , Carcinoma de Células Escamosas do Esôfago , Feminino , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Proteína Companheira de mTOR Insensível à Rapamicina , Taxa de Sobrevida
12.
Chem Biodivers ; 7(8): 1930-48, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20730958

RESUMO

In this review, the literature data on the phytochemical and biological investigations on the genus of Meconopsis are summarized from 49 references. Up to now, more than 95 compounds were isolated from 19 Meconopsis plant species. The chemical constituents are mostly alkaloids, flavonoids, phenols, steroids, and terpenes, together with minor constituents of essential oil, and others. The crude extracts and metabolites have been found to possess various bioactivities including antitumor activity, central action, cardiovascular system effects, antibiosis, antiviral activity, anti-inflammatory effects, and other biological activities.


Assuntos
Papaveraceae/química , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Animais , Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Antineoplásicos/química , Antineoplásicos/farmacologia , Sistema Cardiovascular/efeitos dos fármacos , Linhagem Celular Tumoral , Humanos , Estrutura Molecular
13.
Zhong Yao Cai ; 31(3): 407-9, 2008 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-18619249

RESUMO

OBJECTIVE: To study the immunomodulatory effect of Part III of Cynomorium songaricum Rupr. on the immunosuppressive mice. METHODS: The immunity-deficiency model was induced by intraperitoneal injection of cyclophosphamide (CTX) at the dose of 100 mg/kg in mice; all the animals were divided into normal control group, immunity-deficiency model group, Part III treated group (300 mg/kg) and positive control group (TSPG, 300 mg/kg). The hemogram of peripheral blood, the index of immune organs, the phagocytosis activity of macrophage, the content of serum hemolysin were measured. RESULTS: The index of organs, the phagocytosis activity of macrophage and the content of serum hemolysin in the model group increased after administrated of Part III. CONCLUSION: Part III from Cynomorium songaricum Rupr. has protective effect on the immunosuppressive mice, which may be related to the increasing of humoral immunity and nonspecific immunity.


Assuntos
Adjuvantes Imunológicos/farmacologia , Cynomorium/química , Medicamentos de Ervas Chinesas/farmacologia , Imunidade/efeitos dos fármacos , Hospedeiro Imunocomprometido/efeitos dos fármacos , Animais , Ciclofosfamida/toxicidade , Proteínas Hemolisinas/sangue , Hospedeiro Imunocomprometido/imunologia , Imunossupressores/toxicidade , Contagem de Linfócitos , Macrófagos/citologia , Macrófagos/efeitos dos fármacos , Macrófagos/imunologia , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Tamanho do Órgão/efeitos dos fármacos , Fagócitos/citologia , Fagócitos/efeitos dos fármacos , Fagócitos/imunologia , Fagocitose/efeitos dos fármacos , Plantas Medicinais/química , Baço/efeitos dos fármacos , Baço/imunologia , Baço/patologia
14.
Zhong Yao Cai ; 31(2): 258-61, 2008 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-18619274

RESUMO

OBJECTIVE: To establish insulin-resistant 3T3-L1 adipocytes cell model. METHODS: 3T3-L1 preadipocytes were cultured and induced to differentation. We established insulin resistant 3T3-L1 induced by dexamethasone and determined the change of glucose concentration in cell culture. RESULTS: In high glucose DMEM culture media, the glusose concentration significantly decreased. Achieved the peak of insulin-resisitant at the 96th hour induced by dexamethasone, and at this time compared with the blank the mRNA expression of Resistin of the model step up about three times. CONCLUSION: 3T3-L1 adipocyte exposed to 1 micromol/L dexamethasone for 24 hours are able to induce a state of insulin resistance which can be maintained for 216 hours.


Assuntos
Adipócitos/efeitos dos fármacos , Glucose/farmacologia , Resistência à Insulina , Resistina/genética , Células 3T3-L1 , Adipócitos/citologia , Adipócitos/metabolismo , Animais , Proliferação de Células/efeitos dos fármacos , Células Cultivadas , Meios de Cultura/farmacologia , Dexametasona/farmacologia , Regulação da Expressão Gênica/efeitos dos fármacos , Camundongos , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Reação em Cadeia da Polimerase Via Transcriptase Reversa
15.
Zhongguo Zhong Yao Za Zhi ; 32(13): 1328-32, 2007 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-17879738

RESUMO

OBJECTIVE: To investigate the effects of Rehmannia glutinosa oligosaccharides (ROS) on the proliferation of HepG2 and insulin resistance. METHOD: The HepG2 cells were divided into control group, rosiglitazone (3.4 mg x L(-1)) treated group and ROS (0.1-30 mg x L(-1)) treated group. The proliferation of HepG2 was detected by MTT method. Insulin resistant HepG2 cells model was induced by high concentration of insulin, then the effects of ROS on glucose consumption in insulin resistant HepG2 cells were investigated. RESULT: In the middle glucose culture medium, the absorbance at 570 nm of HepG2 was increased by high concentration of ROS, and decreased by low concentration of ROS by using MTT method, a concentration-dependent manner. ROS increased glucose consumption in HepG2 cells, and showed a better effect at the dose of 10 mg x L(-1). ROS promoted the glucose consumption in insulin resistance of HepG2 cells, improved the sensitivity of insulin resistance of HepG2 cells to insulin. CONCLUSION: High concentration of ROS can promote the proliferation of HepG2, and however low concentration of ROS inhibits the proliferation of HepG2. ROS can significantly improve insulin resistance of HepG2 cells induced by high insulin.


Assuntos
Proliferação de Células/efeitos dos fármacos , Oligossacarídeos/farmacologia , Rehmannia/química , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/patologia , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Resistencia a Medicamentos Antineoplásicos , Glucose/metabolismo , Glucose/farmacologia , Humanos , Hipoglicemiantes/isolamento & purificação , Hipoglicemiantes/farmacologia , Insulina/farmacologia , Resistência à Insulina , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Oligossacarídeos/isolamento & purificação , Plantas Medicinais/química
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