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1.
Int J Cancer ; 149(1): 127-138, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-33586134

RESUMO

The population of patients with huge hepatocellular carcinoma (H-HCC diameter > 10.0 cm) is an odd group that is not well adjudicated in the current staging systems, whose prognosis after curative resection varies. We aimed to develop novel models to predict the long-term outcomes of patients with H-HCC without portal vein tumor thrombus after hepatectomy. There were 1076 H-HCC patients enrolled who underwent curative liver resection in five institutions in China. In total, 670 patients were recruited from our center and randomly divided into the training cohort (n = 502) and internal validation (n = 168) cohorts. Additionally, 406 patients selected from other four centers as the external validation cohort. Novel models were constructed based on independent preoperative and postoperative predictors of postsurgical recurrence (PSR) and postsurgical mortality (PSM) determined in multivariable cox regression analysis. The predictive accuracy and discriminative ability of the model were measured using Harrell's concordance index (C index) and calibration curve and compared with five conventional HCC staging systems. PSR model and PSM model were constructed based on tumor number, microscopic vascular invasion, tumor differentiation, preoperative alpha-fetoprotein level, albumin-bilirubin grade, liver segment invasion, neutrophil-to-lymphocyte ratio or platelet-to-neutrophil ratio, and surgical margin or intraoperative blood transfusion. The C-indexes were 0.84 (95% CI, 0.78-0.90) and 0.85 (95% CI, 0.78-0.91) for the PSR and PSM models, respectively, which were substantially higher than those of the five conventional HCC staging systems (0.63-0.75 for PSR; 0.66-0.77 for PSM). The two novel models achieved more accurate prognostic predictions of PSR and PSM for H-HCC patients after curative liver resection.


Assuntos
Carcinoma Hepatocelular/patologia , Hepatectomia/mortalidade , Neoplasias Hepáticas/patologia , Modelos Estatísticos , Recidiva Local de Neoplasia/patologia , Nomogramas , Carcinoma Hepatocelular/cirurgia , China , Feminino , Seguimentos , Humanos , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/cirurgia , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida
2.
BMC Infect Dis ; 21(1): 587, 2021 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-34144700

RESUMO

BACKGROUND: Talaromyces marneffei (T. marneffei) infection has been associated with adult-onset immunodeficiency due to anti-IFN-γ autoantibodies. We aimed to investigate the clinical features of non-HIV-infected patients with T. marneffei infection in southern China. METHODS: Between January 2018 and September 2020, we enrolled patients with T. marneffei infection who were HIV-negative (group TM, n = 42), including anti-IFN-γ autoantibody-positive (group TMP, n = 22) and anti-IFN-γ autoantibody-negative (group TMN, n = 20) patients and healthy controls (group HC, n = 40). Anti-IFN-γ autoantibodies were detected by ELISA. Clinical characteristics and clinical laboratory parameters were recorded. RESULTS: Compared with anti-IFN-γ autoantibody-negative patients with T. marneffei infection, anti-IFN-γ autoantibody-positive patients did not have underlying respiratory disease; more frequently exhibited dissemination of systemic infections with severe pleural effusion; had higher WBC counts, C-reactive protein levels, erythrocyte sedimentation rates, and neutrophil and CD8+ T cell counts; had lower hemoglobin levels; and were more likely to have other intracellular pathogen infections. Most of these patients had poor outcomes despite standardized antimicrobial therapy. CONCLUSION: T. marneffei-infected patients with higher anti-IFN-γ autoantibody titers have more severe disease and complex clinical conditions.


Assuntos
Síndromes de Imunodeficiência/etiologia , Interferon gama/imunologia , Micoses/imunologia , Adulto , Autoanticorpos/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Índice de Gravidade de Doença
3.
Carcinogenesis ; 41(5): 571-581, 2020 07 10.
Artigo em Inglês | MEDLINE | ID: mdl-32648918

RESUMO

Cripto-1 (CR1), an oncofetal protein, had been implied to reactivate in some cancers. However, the relationship between CR1 expression and patient outcomes and the tumor biological function of CR1 contributing to invasion and metastasis in hepatocellular carcinoma (HCC) is poorly defined. In this study, we demonstrated that CR1 was expressed in over 80% of HCCs in a training cohort (n = 242) and a validation cohort (n = 159). High CR1 expression was significantly correlated with aggressive HCC phenotypes (i.e. portal vein tumor thrombus, microscopic vascular invasion, multiple tumors and poor tumor differentiation). In both the training and validation cohorts, patients with high CR1 expression had remarkably shorter disease-free survival and overall survival rates than those with low CR1 expression. A series in vitro and in vivo assays showed that CR1 substantially promoted HCC cell migration, invasion and metastasis. Mechanistically, we demonstrated that CR1 induced HCC cells to undergo epithelial-mesenchymal transition through activating the Akt/NFκB/p65 signaling. Chromatin immunoprecipitation assay showed that NFκB/p65 enhanced CR1 expression by binding its promoter. Thus, CR1 and NFκB/p65 form a positive feedback loop that sustained the process of migration and invasion of HCC. Therefore, CR1 plays an important role in HCC invasion and metastasis and may be an effective and reliable prognostic biomarker for HCC recurrence after resection. Targeting CR1 may be a promising treatment for HCC.


Assuntos
Biomarcadores Tumorais/metabolismo , Carcinoma Hepatocelular/patologia , Proteínas Ligadas por GPI/metabolismo , Regulação Neoplásica da Expressão Gênica , Peptídeos e Proteínas de Sinalização Intercelular/metabolismo , Neoplasias Hepáticas/patologia , Neoplasias Pulmonares/secundário , Proteínas de Neoplasias/metabolismo , Animais , Apoptose , Biomarcadores Tumorais/genética , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/cirurgia , Movimento Celular , Proliferação de Células , Feminino , Proteínas Ligadas por GPI/genética , Humanos , Peptídeos e Proteínas de Sinalização Intercelular/genética , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/cirurgia , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/cirurgia , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Pessoa de Meia-Idade , Invasividade Neoplásica , Proteínas de Neoplasias/genética , Prognóstico , Taxa de Sobrevida , Células Tumorais Cultivadas , Ensaios Antitumorais Modelo de Xenoenxerto
4.
Carcinogenesis ; 41(5): 571-581, 2020 07 10.
Artigo em Inglês | MEDLINE | ID: mdl-32649753

RESUMO

Cripto-1 (CR1), an oncofetal protein, had been implied to reactivate in some cancers. However, the relationship between CR1 expression and patient outcomes and the tumor biological function of CR1 contributing to invasion and metastasis in hepatocellular carcinoma (HCC) is poorly defined. In this study, we demonstrated that CR1 was expressed in over 80% of HCCs in a training cohort (n = 242) and a validation cohort (n = 159). High CR1 expression was significantly correlated with aggressive HCC phenotypes (i.e. portal vein tumor thrombus, microscopic vascular invasion, multiple tumors and poor tumor differentiation). In both the training and validation cohorts, patients with high CR1 expression had remarkably shorter disease-free survival and overall survival rates than those with low CR1 expression. A series in vitro and in vivo assays showed that CR1 substantially promoted HCC cell migration, invasion and metastasis. Mechanistically, we demonstrated that CR1 induced HCC cells to undergo epithelial-mesenchymal transition through activating the Akt/NFκB/p65 signaling. Chromatin immunoprecipitation assay showed that NFκB/p65 enhanced CR1 expression by binding its promoter. Thus, CR1 and NFκB/p65 form a positive feedback loop that sustained the process of migration and invasion of HCC. Therefore, CR1 plays an important role in HCC invasion and metastasis and may be an effective and reliable prognostic biomarker for HCC recurrence after resection. Targeting CR1 may be a promising treatment for HCC.


Assuntos
Biomarcadores Tumorais/metabolismo , Carcinoma Hepatocelular/patologia , Proteínas Ligadas por GPI/metabolismo , Regulação Neoplásica da Expressão Gênica , Peptídeos e Proteínas de Sinalização Intercelular/metabolismo , Neoplasias Hepáticas/patologia , Neoplasias Pulmonares/secundário , Proteínas de Neoplasias/metabolismo , Animais , Apoptose , Biomarcadores Tumorais/genética , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/cirurgia , Movimento Celular , Proliferação de Células , Feminino , Proteínas Ligadas por GPI/genética , Humanos , Peptídeos e Proteínas de Sinalização Intercelular/genética , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/cirurgia , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/cirurgia , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Pessoa de Meia-Idade , Invasividade Neoplásica , Proteínas de Neoplasias/genética , Prognóstico , Taxa de Sobrevida , Células Tumorais Cultivadas , Ensaios Antitumorais Modelo de Xenoenxerto
5.
Clin Infect Dis ; 71(8): 1980-1981, 2020 11 05.
Artigo em Inglês | MEDLINE | ID: mdl-32271374

RESUMO

The 2019 novel coronavirus was detected in self-collected throat washings. The positive testing rate of throat washing was much higher than that of nasopharyngeal swabs. Throat washing is a promising candidate for 2019-nCoV screening and monitoring due to its noninvasiveness and reliability.


Assuntos
Infecções por Coronavirus , Coronavirus , Pandemias , Pneumonia Viral , Betacoronavirus , COVID-19 , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Humanos , Boca , Faringe , Pneumonia Viral/epidemiologia , Reprodutibilidade dos Testes , SARS-CoV-2
6.
J Cell Biochem ; 121(11): 4419-4430, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32056305

RESUMO

Kinesin family member 2C (KIF2C), a substantial mitotic regulator, has been verified to exert a malignant function in several cancers. However, its function in hepatocellular carcinoma (HCC) remains unclear. In this study, the expression profile of KIF2C in HCC was characterized through the dataset from the TCGA and clinical tissue microarrays containing 220 pairs of resected HCC tissues and adjacent nontumor tissues in our hospital. The results indicated that KIF2C was substantially higher expression in tumor tissues than adjacent nontumor tissues. High expression of KIF2C significantly correlated with large tumor (>5.0 cm) (P = .001) and implied a dismal postoperative overall survival (OS) (hazard ratio [HR] = 1.729; P = .002) in our cohort of patients. Gain and loss of function assays displayed that KIF2C promoted HCC cell proliferation, accelerated cell cycle progression, and impeded apoptosis. By bioinformatic tools and mechanistic investigation, we found that KIF2C interacted with various cell-cycle-related proteins and was significantly involved in growth-promoting pathways. KIF2C upregulated PCNA and CDC20 expression. Subsequently, we investigated the regulation of KIF2C by competing endogenous RNA and elucidated that has-miR-6715a-3p was directly bond to the 3'-untranslated region of KIF2C through dual luciferase assays, thereby inhibiting KIF2C expression. Furthermore, the long noncoding RNA GS1-358P8.4 was found to be a candidate of KIF2C for has-miR-6715a-3p binding. HCC patients with high lncRNA-GS1-358P8.4 expression had shorter OS and relapse-free survival compared to those with low expression, which was accordance with the KIF2C. Taken together, KIC2C aggravated HCC progression, it could serve as a prognostic indicator and confer a novel target for clinical treatment.


Assuntos
Biomarcadores Tumorais/metabolismo , Carcinoma Hepatocelular/patologia , Regulação Neoplásica da Expressão Gênica , Cinesinas/metabolismo , Neoplasias Hepáticas/patologia , RNA Longo não Codificante/genética , Animais , Apoptose , Biomarcadores Tumorais/genética , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Proliferação de Células , Feminino , Humanos , Cinesinas/genética , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Masculino , Pessoa de Meia-Idade , Prognóstico , Taxa de Sobrevida , Células Tumorais Cultivadas
7.
Oncologist ; 25(10): e1552-e1561, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32663354

RESUMO

BACKGROUND: The predictive model of postsurgical recurrence for solitary early hepatocellular carcinoma (SE-HCC) is not well established. The aim of this study was to develop a novel model for prediction of postsurgical recurrence and survival for patients with hepatitis B virus (HBV)-related SE-HCC ≤10 cm. PATIENTS AND METHODS: Data from 1,081 patients with HBV-related SE-HCC ≤10 cm who underwent curative liver resection from 2003 to 2016 in our center were collected retrospectively and randomly divided into the derivation cohort (n = 811) and the internal validation cohort (n = 270). Eight hundred twenty-three patients selected from another four tertiary hospitals served as the external validation cohort. Postsurgical recurrence-free survival (RFS) and overall survival (OS) predictive nomograms were generated. The discriminatory accuracies of the nomograms were compared with six conventional hepatocellular carcinoma (HCC) staging systems. RESULTS: Tumor size, differentiation, microscopic vascular invasion, preoperative α-fetoprotein, neutrophil-to-lymphocyte ratio, albumin-to-bilirubin ratio, and blood transfusion were identified as the risk factors associated with RFS and OS. RFS and OS predictive nomograms based on these seven variables were generated. The C-index was 0.83 (95% confidence interval [CI], 0.79-0.87) for the RFS-nomogram and 0.87 (95% CI, 0.83-0.91) for the OS-nomogram. Calibration curves showed good agreement between actual observation and nomogram prediction. Both C-indices of the two nomograms were substantially higher than those of the six conventional HCC staging systems (0.54-0.74 for RFS; 0.58-0.76 for OS) and those of HCC nomograms reported in literature. CONCLUSION: The novel nomograms were shown to be accurate at predicting postoperative recurrence and OS for patients with HBV-related SE-HCC ≤10 cm after curative liver resection. IMPLICATIONS FOR PRACTICE: This multicenter study proposed recurrence or mortality predictive nomograms for patients with hepatitis B virus-related solitary early hepatocellular carcinoma ≤10 cm after curative liver resection. A close postsurgical surveillance protocol and adjuvant therapy should be considered for patients at high risk of recurrence.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Trombose , Carcinoma Hepatocelular/cirurgia , Hepatectomia , Vírus da Hepatite B , Humanos , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia , Nomogramas , Prognóstico , Estudos Retrospectivos
8.
BMC Cancer ; 20(1): 487, 2020 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-32471389

RESUMO

BACKGROUND: The influence of perioperative blood transfusion (PBT) on postsurgical survival of patients with different stage of hepatocellular carcinoma (HCC) is not well clarified. This study aimed to evaluate the impact of PBT on survival outcomes of different stage of HCC patients. METHODS: Consecutive patients who underwent liver resection for HCC between January 2009 and November 2015 were identified from an HCC prospective database in authors' center. The survival outcomes were compared between patients receiving PBT and those without PBT before and after propensity score matching (PSM) in different stage subsets. Cox regression analysis was performed to verify the impact of PBT on outcomes of HCC. RESULTS: Among 1255 patients included, 804 (64.1%) were Barcelona Clinic Liver Cancer (BCLC) stage 0-A, and 347 (27.6%) received PBT. Before PSM, patients with PBT had worse disease free survival (DFS) and overall survival (OS) compared with those without PBT in both BCLC 0-A subset and BCLC B-C subset (all P < 0.05). After PSM, 288 pairs of patients (with and without PBT) were created. In the subset of BCLC 0-A, the median DFS of patients with PBT was shorter than those without PBT (12.0 months vs. 36.0 months, P = 0.001) Similar result was observed for OS (36.0 months vs. 96.0 months, P = 0.001). In the subset of BCLC B-C, both DFS and OS were comparable between patients with PBT and those without PBT. Cox regression analysis showed that PBT involved an increasing risk of DFS (HR = 1.607; P < 0.001) and OS (HR = 1.756; P < 0.001) for this subset. However, PBT had no impact on DFS (P = 0.126) or OS (P = 0.139) for those with stage B-C HCC. CONCLUSIONS: PBT negatively influenced oncologic outcomes of patient with BCLC stage 0-A HCC, but not those with stage B-C after curative resection.


Assuntos
Transfusão de Sangue/estatística & dados numéricos , Carcinoma Hepatocelular/cirurgia , Hepatectomia/efeitos adversos , Neoplasias Hepáticas/cirurgia , Assistência Perioperatória/efeitos adversos , Adulto , Idoso , Perda Sanguínea Cirúrgica/prevenção & controle , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Assistência Perioperatória/estatística & dados numéricos , Pontuação de Propensão , Estudos Prospectivos , Estudos Retrospectivos
10.
BMC Cancer ; 18(1): 815, 2018 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-30103712

RESUMO

BACKGROUND: The function of hornerin (HRNR), a member of the S100 protein family, is poorly clarified in the development of human tumors. The role of HRNR in hepatocellular carcinoma (HCC) progression is investigated in the study. METHODS: The expression levels of HRNR were assessed in tumor samples from a cohort of 271 HCC patients. The effect of HRNR on proliferation, colony formation and invasion of tumor cells was examined. We further determined the role of HRNR in tumor growth in vivo by using xenograft HCC tumor models. The possible mechanism of the HRNR promotion of HCC progression was explored. RESULTS: We found that HRNR was overexpressed in HCC tissues. The high expression of HRNR in HCCs was significantly associated with vascular invasion, poor tumor differentiation, and advanced TNM stage. The disease-free survival (DFS) and overall survival (OS) of HCC patients with high HRNR expression were poorer than those in the low HRNR expression group. HRNR expression was an independent risk factor linked to both poor DFS (HR = 2.209, 95% CI = 1.627-2.998,P <  0.001) and OS (HR = 2.459,95% CI = 1.736-3.484, P <  0.001). In addition, the knockdown of HRNR by shRNAs significantly inhibited the proliferation, colony formation, migration and invasion of HCC tumor cells. HRNR silencing led to the decreased phosphorylation of AKT signaling. Notably, tumor growth was markedly inhibited by HRNR silencing in a xenograft model of HCC. CONCLUSIONS: HRNR promotes tumor progression and is correlated with a poor HCC prognosis. HRNR may contribute to HCC progression via the regulation of the AKT pathway.


Assuntos
Proteínas de Ligação ao Cálcio/genética , Carcinoma Hepatocelular/genética , Proliferação de Células/genética , Proteínas de Filamentos Intermediários/genética , Neoplasias Hepáticas/genética , Adulto , Idoso , Animais , Carcinoma Hepatocelular/patologia , Movimento Celular/genética , Metilação de DNA/genética , Progressão da Doença , Intervalo Livre de Doença , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Neoplasias Hepáticas/patologia , Masculino , Camundongos , Pessoa de Meia-Idade , Invasividade Neoplásica/genética , Invasividade Neoplásica/patologia , Proteína Oncogênica v-akt/genética , Prognóstico , Transdução de Sinais/genética , Ensaios Antitumorais Modelo de Xenoenxerto
11.
BMC Cancer ; 18(1): 460, 2018 04 24.
Artigo em Inglês | MEDLINE | ID: mdl-29690860

RESUMO

BACKGROUND: Embryonic Liver Fodrin (ELF) is an adaptor protein of transforming growth factor (TGF-ß) signaling cascade. Disruption of ELF results in mislocalization of Smad3 and Smad4, leading to compromised TGF-ß signaling. c-Myc is an important oncogenic transcription factor, and the disruption of TGF-ß signaling promotes c-Myc-induced hepatocellular carcinoma (HCC) carcinogenesis. However, the prognostic significance of c-Myc in HCC is less understood METHODS: The expression of c-Myc protein and mRNA were measured by immunohistochemistry (IHC) and qRT- PCR, respectively. IHC was performed to detect TGF-ß1 and ELF expression in HCC tissues. Their relationship with clinicopathological factors and overall survival (OS) and disease free survival (DFS) were examined. RESULTS: The expression of c-Myc protein and mRNA in HCC tissues were significantly higher in HCC area than those in normal liver tissues. However, the expression were low compared with those adjacent to HCC area. c-Myc protein was independently predictive of DFS and OS, and it was negatively correlated with tumor size (P = 0.031), tumor number (P = 0.038), and recurrence (P = 0.001). Low c-Myc expression was associated with short-term recurrence and poor prognosis. The predictive value of c-Myc combined with TGF-ß1 or/and ELF was higher than that of any other single marker. Low c-Myc, high TGF-ß1 or/and low ELF expression was associated with the worst DFS and OS. CONCLUSIONS: Low expression of c-Myc protein predicts poor outcomes in patients with HCC with hepatectomy. The combination of the expression of c-Myc, TGF-ß1, and ELF can be used to accurately predict outcomes of patients with HCC.


Assuntos
Biomarcadores Tumorais , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/mortalidade , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/mortalidade , Proteínas Proto-Oncogênicas c-myc/metabolismo , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/cirurgia , Feminino , Expressão Gênica , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/cirurgia , Masculino , Estadiamento de Neoplasias , Prognóstico , Modelos de Riscos Proporcionais , Ligação Proteica , Proteínas Proto-Oncogênicas c-myc/genética , Reação em Cadeia da Polimerase em Tempo Real , Recidiva , Fator de Crescimento Transformador beta1/metabolismo
12.
J Nat Prod ; 81(4): 768-777, 2018 04 27.
Artigo em Inglês | MEDLINE | ID: mdl-29517238

RESUMO

Isoquinoline alkaloids possess a wide range of structural features and pharmaceutical activities and are promising drug candidates. Ten water-soluble catecholic isoquinolines were isolated from the medicinal plant Portulaca oleracea, including three new (1-3) and seven known compounds (4-10), along with the known catecholamines 11 and 12 and four other known compounds (13-16). A method of polyamide column chromatography using EtOAc-MeOH as the mobile phase was developed for the isolation of catecholic isoquinolines. Alkaloids 1-12 exhibited anti-inflammatory activities (EC50 = 18.0-497.7 µM) through inhibition of NO production in lipopolysaccharide-induced murine macrophage RAW 264.7 cells. Among these compounds, 11, 2, 5, 4, and 8 were more potent than was the positive control, 3,4-dihydroxybenzohydroxamic acid (EC50 = 82.4 µM), with EC50 values of 18.0, 18.1, 35.4, 36.3, and 58.7 µM, respectively. Additionally, at 100 µM, compounds 1-12 showed different degrees of ß2-adrenergic receptor (ß2-AR) agonist activity in the CHO-K1/GA15 cell line which stably expressed ß2-AR as detected by a calcium assay. The EC50 values of 2 and 10 were 5.1 µM and 87.9 nM, respectively.


Assuntos
Agonistas Adrenérgicos/farmacologia , Agonistas de Receptores Adrenérgicos beta 2/metabolismo , Anti-Inflamatórios/farmacologia , Isoquinolinas/farmacologia , Portulaca/química , Agonistas Adrenérgicos/química , Animais , Anti-Inflamatórios/química , Células CHO , Linhagem Celular , Cricetulus , Isoquinolinas/química , Macrófagos/efeitos dos fármacos , Macrófagos/metabolismo , Camundongos , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Plantas Medicinais/química , Células RAW 264.7
13.
BMC Cancer ; 16: 137, 2016 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-26907597

RESUMO

BACKGROUND: The occurrence and development of hepatocellular carcinoma (HCC) depends largely on such non-tumor factors as inflammatory condition, immune state, viral infection and liver fibrosis. Various inflammation-based prognostic scores have been associated with survival in patients with HCC, such as the neutrophil/lymphocyte ratio (NLR), the platelet/lymphocyte ratio (PLR) and the prognostic nutritional index (PNI). The aspartate aminotransferase/platelet count ratio index (APRI) is thought to be a biomarker of liver fibrosis and cirrhosis. This study aims to evaluate the ability of these indices to predict survival in HCC patients after curative hepatectomy, and probe the increased prognostic accuracy of APRI combined with established inflammation-based prognostic scores. METHODS: Data were collected retrospectively from 321 patients who underwent curative resection for HCC. Preoperative NLR, PLR, PNI, APRI and clinico-pathological variables were analyzed. Univariate and multivariate analyses were performed to identify the predictive value of the above factors for disease-free survival (DFS) and overall survival (OS). RESULTS: Univariate analysis showed that NLR, PLR, PNI and APRI were significantly associated with DFS and OS in HCC patients with curative resection. Multivariate analysis showed that NLR and APRI were superior to PLR and PNI, and both were independently correlated with DFS and OS. Preoperative NLR >2 or APRI >1.68 predicted poor prognosis of patients with HCC after hepatectomy. Furthermore, the predictive range of NLR combined with APRI was more sensitive than that of either measure alone. CONCLUSIONS: Preoperative NLR and APRI are independent predictors of DFS and OS in patients with HCC after surgical resection. Higher levels of NLR or APRI predict poorer outcomes in HCC patients. Intriguingly, combining NLR and APRI increases the prognostic accuracy of testing.


Assuntos
Aspartato Aminotransferases/metabolismo , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/patologia , Linfócitos/imunologia , Neutrófilos/imunologia , Adulto , Idoso , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/mortalidade , Feminino , Humanos , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Avaliação Nutricional , Contagem de Plaquetas , Prognóstico , Análise de Sobrevida , Adulto Jovem
14.
Lab Invest ; 95(2): 207-22, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25485535

RESUMO

Many commercially available cell lines have been in culture for ages, acquiring phenotypes that differ from the original cancers from which these cell lines were derived. Therefore, research on new cell lines could improve the success rates of translational research in cancer. We have developed methods for the isolation and culture of human pancreatic ductal adenocarcinoma (PDAC) cells from murine xenografts of human PDAC. We hypothesize that phenotypes of PDAC cells are modified by in vitro culture conditions over time and by in vivo implantation. Patient-derived xenografts were created in immunodeficient mice using surgically resected tumor specimens. These murine xenografts were then used to establish human PDAC cell lines in culture. Earlier (<5) passage and later (>20) passage cell lines were evaluated separately regarding proliferation, cell cycle, genetic mutations, invasiveness, chemosensitivity, tumorigenesis, epithelial-mesenchymal transition (EMT) status, and proteomics. Later passage cells accelerated their doubling time and colony formation, and were more concentrated in the G0/G1 phase and less in the G2/M checkpoint phase. Later passage cells were more sensitive to gemcitabine and 5-fluorouracil than earlier passage cells, but all four new cell lines were more chemo-resistant compared with commercial ATCC cell lines. EMT induction was observed when establishing and passaging cell lines in vitro and furthermore by growing them as subcutaneous tumors in vivo. This study demonstrates a novel approach to the establishment of PDAC cell lines and observes a process by which newly established cell lines undergo phenotypic changes during in vitro culture and in vivo tumorigenesis. This may help explain differences of treatment effects often observed between experiments conducted in vitro, in vivo, and in human clinical trials.


Assuntos
Técnicas de Cultura de Células/métodos , Transição Epitelial-Mesenquimal/fisiologia , Neoplasias Pancreáticas/fisiopatologia , Fenótipo , Animais , Western Blotting , Ciclo Celular/fisiologia , Proliferação de Células/fisiologia , Ensaio de Unidades Formadoras de Colônias , Desoxicitidina/análogos & derivados , Fluoruracila , Xenoenxertos/citologia , Xenoenxertos/fisiologia , Humanos , Imuno-Histoquímica , Camundongos , Invasividade Neoplásica/fisiopatologia , Análise Serial de Proteínas , Proteômica/métodos , Células Tumorais Cultivadas , Gencitabina , Neoplasias Pancreáticas
17.
BMC Cancer ; 15: 116, 2015 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-25880619

RESUMO

BACKGROUND: Tumor suppression of Transforming Growth Factor (TGF-ß) signaling pathway requires an adaptor protein, Embryonic Liver Fodrin (ELF). Disruption of ELF expression resulted in miscolocalization of Smad3 and Smad4, then disruption of TGF-ß signaling. However, the prognostic significance of ELF for hepatocellular carcinoma (HCC) hasn't been clarified. This study aimed to investigate whether measuring both TGF-ß1 and ELF provides a more powerful predictor for HCC prognosis than either marker alone. METHODS: TGF-ß1 and ELF protein were detected by immunohistochemistry. The relationship between TGF-ß1/ELF expression and patients' clinicopathologic factors was analyzed. The association between TGF-ß1/ELF expression and disease-free survival and overall survival was analyzed by Kaplan-Meier curves, the log-rank test, and Multivariate Cox regression analyses. RESULTS: The expression of TGF-ß1 in HCC tissues was significantly higher than that in normal liver tissues. Conversely, the expression of ELF in HCC tissues declined markedly. ELF protein was correlated with HBsAg, tumor size, tumor number, TNM and recurrence. Data also indicated a significant negative correlation between ELF and TGF-ß1. Patients with high TGF-ß1 expression or/and low ELF expression appeared to have a poor postoperative disease-free survival and overall survival compared with those with low TGF-ß1 expression or/and high ELF expression. Furthermore, the predictive range of ELF combined with TGF-ß1 was more sensitive than that of either one alone. CONCLUSIONS: TGF-ß1 and ELF protein are potential and reliable biomarkers for predicting prognosis in HCC patients after hepatic resection. Our current study has demonstrated that the prognostic accuracy of testing can be enhanced by their combination.


Assuntos
Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/mortalidade , Proteínas de Transporte/metabolismo , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/mortalidade , Proteínas dos Microfilamentos/metabolismo , Fator de Crescimento Transformador beta1/metabolismo , Adulto , Idoso , Biomarcadores Tumorais , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Feminino , Seguimentos , Expressão Gênica , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Prognóstico , Transdução de Sinais , Carga Tumoral , Adulto Jovem
18.
Hepatobiliary Pancreat Dis Int ; 14(6): 626-32, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26663011

RESUMO

BACKGROUND: Hilar cholangiocarcinoma (HCCA) is a devastating malignancy arising from the bifurcation of the hepatic duct, whether combined vascular resection benefits HCCA patients is controversial. This study was undertaken to assess the effect of combined vascular resection in HCCA patients and to analyze the prognostic factors. METHODS: Clinical data of 154 HCCA patients who had been treated from January 2005 to December 2012 were retrospectively analyzed. The patients were divided into three groups based on vascular resection: those without vascular resection; those with portal vein resection alone and those with hepatic artery resection. The survival and complication rates were compared among the three groups. Multivariate analysis was made to determine prognostic factors. RESULTS: No significant differences were found in survival and complication rates among the three groups (P>0.05). Multivariate analysis showed that 3 factors were related to survival: lymph node metastasis, tumor size (>2.5 cm), and positive resection margin. CONCLUSIONS: Vascular resection improved the survival rate of patients with HCCA involving the hepatic artery or portal vein. Lymph node metastasis, tumor size (>2.5 cm) and positive resection margin were poor prognostic factors in patients with HCCA.


Assuntos
Neoplasias dos Ductos Biliares/cirurgia , Artéria Hepática/cirurgia , Tumor de Klatskin/cirurgia , Veia Porta/cirurgia , Procedimentos Cirúrgicos Vasculares , Adulto , Idoso , Neoplasias dos Ductos Biliares/mortalidade , Neoplasias dos Ductos Biliares/patologia , Distribuição de Qui-Quadrado , China , Feminino , Artéria Hepática/patologia , Humanos , Estimativa de Kaplan-Meier , Tumor de Klatskin/mortalidade , Tumor de Klatskin/secundário , Metástase Linfática , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Invasividade Neoplásica , Neoplasia Residual , Veia Porta/patologia , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Carga Tumoral , Procedimentos Cirúrgicos Vasculares/efeitos adversos , Procedimentos Cirúrgicos Vasculares/mortalidade
19.
BMC Surg ; 15: 34, 2015 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-25887526

RESUMO

BACKGROUND: Pancreatic fistula (PF) remains the most challenging complication after pancreaticoduodenectomy (PD). The purpose of this study was to identify the risk factors of PF and delineate its impact on patient outcomes. METHODS: We retrospectively reviewed clinical data of 532 patients who underwent PD and divided them into PF group and no PF group. Risk factors and outcomes of PF following PD were examined. RESULTS: PF was found in 65 (12.2%) cases, of whom 11 were classified into ISGPF grade A, 42 grade B, and 12 grade C. Clinically serious postoperative complications in the PF versus no PF group were mortality, abdominal bleeding, bile leak, intra-abdominal abscess and pneumonia. Univariate and multivariate analysis showed that blood loss ≥ 500 ml, pancreatic duct diameter ≤ 3 mm and pancreaticojejunostomy type were independent risk factors of PF after PD. CONCLUSIONS: Blood loss ≥ 500 ml, pancreatic duct diameter ≤ 3 mm and pancreatico-jejunostomy type were independent risk factors of PF after PD. PF was related with higher mortality rate, longer hospital stay, and other complications.


Assuntos
Fístula Pancreática/etiologia , Pancreaticoduodenectomia , Complicações Pós-Operatórias/etiologia , Adulto , Idoso , Feminino , Humanos , Masculino , Auditoria Médica , Pessoa de Meia-Idade , Análise Multivariada , Avaliação de Resultados em Cuidados de Saúde , Fístula Pancreática/mortalidade , Pancreaticojejunostomia , Complicações Pós-Operatórias/mortalidade , Estudos Retrospectivos , Fatores de Risco
20.
Ann Surg Oncol ; 21(12): 3802-9, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24849520

RESUMO

BACKGROUND: There is conflicting evidence concerning platelet status and hepatocellular carcinoma (HCC) prognosis. We evaluated the prognostic value of platelet-based indices, including platelet count, platelet/lymphocyte ratio (PLR), and aspartate aminotransferase to platelet ratio index (APRI) in HCC after hepatic resection. METHODS: We retrospectively reviewed 332 patients with HCC treated with hepatectomy between 2006 and 2009. Preoperative platelet count, as well as demographic, clinical, and pathologic data, were analyzed. RESULTS: Both disease-free survival (DFS) and overall survival (OS) were significantly improved for patients with low platelet count, PLR, and APRI compared to patients with elevated values. On multivariate analysis, APRI, tumor size ≥5 cm, noncapsulation, and multiple tumors were all associated with both poor DFS and OS. The 1-, 3-, and 5-year DFS rates were 52, 36, and 32 % for patients with APRI <0.62 and were 35, 22, and 19 % for patients with APRI ≥0.62. Correspondingly, the 1-, 3-, and 5-year OS rates were 77, 51, and 42, and 63, 35, and 29 % for both groups. Both DFS and OS of patients with APRI <0.62 were significantly better compared to patients with an elevated APRI (P = 0.009 and 0.002, respectively). Patients with elevated APRI tended to have cirrhosis, hepatitis B virus (HBV) infection, surgical margin <1 cm, and noncapsulated tumors. CONCLUSIONS: Elevated platelets based inflammatory indices, especially APRI, was associated with adverse characteristic features and poor prognosis in HCC, especially for patients with HBV infection or cirrhosis. Antiplatelet treatment may represent a potential therapy for HBV-induced HCC recurrence.


Assuntos
Aspartato Aminotransferases/metabolismo , Biomarcadores Tumorais/análise , Plaquetas/patologia , Carcinoma Hepatocelular/patologia , Hepatectomia/efeitos adversos , Hepatite B/complicações , Neoplasias Hepáticas/patologia , Adulto , Idoso , Carcinoma Hepatocelular/enzimologia , Carcinoma Hepatocelular/etiologia , Carcinoma Hepatocelular/mortalidade , Feminino , Seguimentos , Hepatite B/cirurgia , Hepatite B/virologia , Vírus da Hepatite B/isolamento & purificação , Humanos , Neoplasias Hepáticas/enzimologia , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Cuidados Pré-Operatórios , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
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