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1.
Ann Surg Oncol ; 2024 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-39112735

RESUMEN

PURPOSE: This study was designed to assess the advantages of radical antegrade modular pancreatosplenectomy (RAMPS) over standard retrograde pancreatosplenectomy (SPRS) in terms of disease-free survival (DFS) by comparing clinical outcomes. METHODS: Clinical data from 154 patients who underwent distal pancreatectomy at Tianjin Medical University Cancer Institute and Hospital between January 2015 and August 2018 were collected. We compared the preoperative conditions, postoperative complications, and survival outcomes of patients who underwent two different surgical procedures. By creating a LASSO-Cox model, we determined the parameters affecting DFS and the risk ratios of the two surgical procedures on DFS. RESULTS: The R0 resection rate (85.23% vs. 68.18%, P = 0.003), negative posterior margin rate (96.59% vs. 75.76%, P < 0.001), and tumor bed recurrence rate (15.29% vs. 40.00%, P = 0.001) significantly differed between the RAMPS and SPRS groups. The 1-, 3-, and 5-year survival and DFS rates of the RAMPS group were significantly better than those of the SPRS group (P < 0.05). Disease-free survival analysis based on Kaplan-Meier curves revealed that RAMPS was superior to SPRS (P < 0.001). CONCLUSIONS: We recommend RAMPS as the preferred procedure for treating ductal adenocarcinoma of the pancreatic body and tail due to its enhanced lymph node repair capacity and visualization of posterior pancreatic sections, which can increase DFS in patients.

2.
Microb Ecol ; 87(1): 5, 2023 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-38030815

RESUMEN

Cholangiocarcinoma (CCA) is a serious health problem worldwide. The gut and bile microbiota have not been clearly characterized in patients with CCA, and better noninvasive diagnostic approaches for CCA need to be established. The aim of this study was to investigate the characteristics of the gut and bile microbiota in CCA patients. Forty-two CCA patients and 16 healthy normal controls (HNCs) were enrolled. DNA was extracted from fecal and bile samples and subjected to 16S rRNA gene analysis. We found that there were significant differences in the species diversity, structure, and composition of the microbial communities between the CCA group and the HNC grouAt the phylum level, compared with that in the HNC group, the relative abundance of Firmicutes and Actinobacteriota was significantly decreased in the CCA group, whereas Proteobacteria and Bacteroidota were significantly enriched. The Firmicutes/Bacteroidota (F/B) ratio significantly decreased in the CCA group compared to the HNC grouThe relative abundance of Klebsiella in the CCA group was significantly higher than that in the HNC group, while the relative abundance of Bifidobacterium was significantly decreased. The Bifidobacterium/Klebsiella (B/K) ratio was established as a novel biomarker and was found to be significantly decreased in the CCA group compared with the HNC grouOur findings provide evidence supporting the use of Klebsiella and Bifidobacterium as noninvasive intestinal microbiomarkers for improving the diagnosis of CCA.


Asunto(s)
Microbioma Gastrointestinal , Microbiota , Humanos , Bifidobacterium/genética , Klebsiella/genética , ARN Ribosómico 16S/genética , Bilis , Firmicutes/genética , Bacteroidetes/genética , Heces/microbiología
3.
Neoplasma ; 70(6): 811-818, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38247334

RESUMEN

We assessed the efficacy and safety of sintilimab [an anti-programmed death (PD-1)] plus bevacizumab biosimilar (IBI305), and hepatic arterial infusion chemotherapy (HAIC) in patients with unresectable hepatocellular carcinoma (HCC). The patients received sintilimab (200 mg) plus IBI305 (7.5 mg/kg) and HAIC (FOLFOX for 23 h) and were treated every 3 weeks. The primary endpoint was the objective response rate (ORR) assessed by an independent review committee (IRC) per mRECIST v1.1. Twenty-nine patients were enrolled in our clinical trial (1 patient voluntarily withdrew due to adverse events after the initial treatment). Objective response was reached in 17/29 (58.6%) patients per mRECIST. A total of 19/29 (65.5%) patients became eligible for further treatment; 14 of them completed surgical resection; 1 (5.3%) achieved pathological complete response (pCR); and 5 (26.3%) reached major partial response (mPR). The 1-year OS rate was better in the PR or pCR+mPR+PR group than in the PD+SD group by either mRECIST or pathological assessment (p=0.039 and 0.006). The 1-year EFS rate was better in the PR group than in the PD+SD group by pathological assessment (p=0.007). The most common treatment-related adverse events (TEAEs) in 30 HCC patients included thrombocytopenia (40.0%), hypertension (23.3%), and leukopenia (23.3%). The grade 3-5 TEAEs that were observed were hypertension (10%), diarrhea (6.7%), asthenia (3.3%), and ascites (3.3%). Sintilimab plus IBI305 and HAIC showed promising efficacy and manageable safety in patients with unresectable HCC. It might represent a novel treatment option for these patients.


Asunto(s)
Anticuerpos Monoclonales Humanizados , Biosimilares Farmacéuticos , Carcinoma Hepatocelular , Hipertensión , Neoplasias Hepáticas , Humanos , Bevacizumab/uso terapéutico , Carcinoma Hepatocelular/tratamiento farmacológico , Biosimilares Farmacéuticos/uso terapéutico , Estudios Prospectivos , Neoplasias Hepáticas/tratamiento farmacológico
4.
Hereditas ; 160(1): 23, 2023 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-37198697

RESUMEN

Pancreatic cancer (PC) is one of the most common malignant tumors in digestive tract. To explore the role of epigenetic factor EZH2 in the malignant proliferation of PC, so as to provide effective medical help in PC. Sixty paraffin sections of PC were collected and the expression of EZH2 in PC tissues was detected by immunohistochemical assay. Three normal pancreas tissue samples were used as controls. The regulation of EZH2 gene on proliferation and migration of normal pancreatic cell and PC cell were determined by MTS, colony forming, Ki-67 antibody, scratch and Transwell assays. Through differential gene annotation and differential gene signaling pathway analysis, differentially expressed genes related to cell proliferation were selected and verified by RT-qPCR. EZH2 is mainly expressed in the nuclei of pancreatic tumor cells, but not in normal pancreatic cells. The results of cell function experiments showed that EZH2 overexpression could enhance the proliferation and migration ability of PC cell BXPC-3. Cell proliferation ability increased by 38% compared to the control group. EZH2 knockdown resulted in reduced proliferation and migration ability of cells. Compared with control, proliferation ability of cells reduced by 16%-40%. The results of bioinformatics analysis of transcriptome data and RT-qPCR demonstrated that EZH2 could regulate the expression of E2F1, GLI1, CDK3 and Mcm4 in normal and PC cells. The results revealed that EZH2 might regulate the proliferation of normal pancreatic cell and PC cell through E2F1, GLI1, CDK3 and Mcm4.


Asunto(s)
Neoplasias Pancreáticas , Humanos , Proteína con Dedos de Zinc GLI1/metabolismo , Línea Celular Tumoral , Neoplasias Pancreáticas/genética , Neoplasias Pancreáticas/metabolismo , Neoplasias Pancreáticas/patología , Páncreas/metabolismo , Páncreas/patología , Componente 4 del Complejo de Mantenimiento de Minicromosoma/metabolismo , Proteína Potenciadora del Homólogo Zeste 2/genética , Proteína Potenciadora del Homólogo Zeste 2/metabolismo , Quinasa 3 Dependiente de Ciclina/metabolismo , Factor de Transcripción E2F1/metabolismo , Neoplasias Pancreáticas
5.
Neoplasma ; 69(1): 95-102, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34704453

RESUMEN

The purpose of this study was to identify gene mutations, high frequency mutations, and driver genes in liver cancer, and the marketed approved drugs of these genes, to provide evidence for targeted treatment of liver cancer since it is one of the most common cancers worldwide. 34 patients with liver cancer were included, and their blood samples were collected. The pathway enrichment analysis of the mutation gene was carried out through the KEGG database, and the genes with marketed approved drugs were screened according to the Pharmalaxy database. A total of 6,612 mutations in 1,241 genes were identified in 34 patients, in which 22 genes mutated in at least 40% of the samples and were thought to be high frequency mutation genes. All the mutations were analyzed using the MutSigCV software, and 30 genes with q<0.1 and p<0.05 were selected out as driver genes. Among them, LRP1B, MYC, NF1, and KEAP1 were coincident with high frequency mutation genes, which were considered key driver genes. Afterward, 181 genes with p<0.05 in MutSigCV software were analyzed for pathway enrichment. These genes were mainly enriched in four pathways, including MAPK mTOR, p53/cell cycle, and JAK-STAT pathways. Finally, there were 15 genes in four pathways that had marketed approved target drugs. To conclude, LRP1B, MYC, NF1, and KEAP1 were the candidate key driver genes for liver cancer, which might provide new insights for targeted therapy of liver cancer.


Asunto(s)
Antineoplásicos/farmacología , Neoplasias Hepáticas , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Proteína 1 Asociada A ECH Tipo Kelch , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/genética , Mutación , Factor 2 Relacionado con NF-E2
6.
BMC Cancer ; 20(1): 318, 2020 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-32293336

RESUMEN

BACKGROUND: Isocitrate dehydrogenase 1/2 (IDH1/2), BAP1, ARID1A and PBRM1 have been reported as the most frequent mutant genes in intrahepatic cholangiocarcinoma (ICC), and their relationships with clinicopathological features and prognosis were researched in this study. METHODS: We collected clinical data of 130 ICC patients from January 2012 to December 2017. The IDH1/2 mutation and loss of BAP1, ARID1A and PBRM1 expressions were detected by DNA sequencing or immunohistochemical methods, and histological subtype of ICCs was determined by hematoxylin-eosin, Alcian blue and S100P staining. RESULTS: IDH1/2 mutation was related to decreased preoperative serum total bilirubin (P = 0.039), ferritin (P = 0.000) and higher histological differentiation (P = 0.024), and was associated with prolonged disease-free survival (P = 0.009) and a trend toward increased overall survival (P = 0.126) in small duct type of ICCs. Immunohistochemical staining results of MsMab-1 were generally consistent with DNA sequencing for IDH1/2 mutant in ICCs (κ = 0.691). Only BAP1 expression loss was correlated to prolonged disease-free survival (P = 0.031) and overall survival (P = 0.041) in large duct type of ICCs. CONCLUSIONS: IDH1/2 mutation is a favorable predictor and may be related to iron metabolism in small duct type of ICCs. Furthermore, we suggest that the detection of IDH1/2 mutation is indispensable to determine targeted therapy in small duct type ICCs, while it is not necessary in large duct of ICCs. MsMab-1 is a relatively effective multi-specific antibody against IDH1/2 mutant in ICCs. BAP1 expression loss was correlated with improved prognosis only in large duct type ICCs.


Asunto(s)
Neoplasias de los Conductos Biliares/patología , Colangiocarcinoma/patología , Isocitrato Deshidrogenasa/genética , Mutación , Adulto , Anciano , Neoplasias de los Conductos Biliares/sangre , Neoplasias de los Conductos Biliares/genética , Bilirrubina/sangre , Colangiocarcinoma/sangre , Colangiocarcinoma/genética , Proteínas de Unión al ADN/genética , Proteínas de Unión al ADN/metabolismo , Femenino , Ferritinas/sangre , Humanos , Masculino , Persona de Mediana Edad , Análisis de Secuencia de ADN , Análisis de Supervivencia , Factores de Transcripción/genética , Factores de Transcripción/metabolismo , Proteínas Supresoras de Tumor/genética , Proteínas Supresoras de Tumor/metabolismo , Ubiquitina Tiolesterasa/genética , Ubiquitina Tiolesterasa/metabolismo
7.
Langmuir ; 35(41): 13311-13317, 2019 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-31554404

RESUMEN

We report the facile preparation of metal microcapsules via the formation of a Pickering emulsion, stabilized by catalytic palladium nanoparticles (PdNPs), and subsequent electroless plating at an oil-water interface induced by the adsorbed PdNPs. Metal microcapsules with smooth metal shells are formed by simply agitating the mixture of the plating solution and 1,2-dichloroethane containing poly(vinylpyrrolidone)-coated PdNPs, without external heating or electrical sources as energy inputs. We found that the metal microcapsules had thin copper metal shells with a relatively smooth surface and metallic luster. The metal shells were composed of more than 99 atom % copper in the form of Cu and Cu2O. We believe that this simple metal microcapsule preparation method may be beneficial to produce novel functional microcapsules with metal shells.

8.
Cancer Sci ; 108(7): 1338-1346, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28387999

RESUMEN

Metastasis is a serious risk that may occur during the treatment of hepatocellular carcinoma (HCC), preventing many patients from being surgical candidates and contributing to poor prognosis. Hypoxia has been proved an important factor of metastasis through the epithelial-mesenchymal transition (EMT) pathway. Acetyl-CoA synthase 2 (ACSS2) provides an acetyl group for the acetylation of hypoxia-inducible factor (HIF)-2α, and this epigenetic modification affects the activity of HIF-2α and the subsequent EMT process. Here, we showed that ACSS2 expression was negatively correlated with HCC malignancy. Knockdown of ACSS2 increased the invasion and migration ability of HCC cells and promoted EMT without increasing the total protein level of HIF-2α, even in hypoxic conditions. The immunoprecipitation assay revealed downregulated acetylation levels of HIF-2α after ACSS2 knockdown in hypoxic conditions, which resulted in enhanced HIF-2α activity. Finally, decreased expression of ACSS2 was found to be related to advanced stage and poor overall survival and disease-free survival rates in a cohort of patients with HCC. In conclusion, ACSS2 plays an important role in the acetylation process of HIF-2α, which effectively modifies the activity of HIF-2α under hypoxic conditions and greatly impacts on the prognosis of patients with HCC.


Asunto(s)
Acetato CoA Ligasa/metabolismo , Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/metabolismo , Carcinoma Hepatocelular/patología , Neoplasias Hepáticas/patología , Acetilación , Western Blotting , Carcinoma Hepatocelular/mortalidad , Supervivencia sin Enfermedad , Transición Epitelial-Mesenquimal/fisiología , Femenino , Humanos , Inmunohistoquímica , Inmunoprecipitación , Estimación de Kaplan-Meier , Neoplasias Hepáticas/mortalidad , Masculino , Persona de Mediana Edad , Invasividad Neoplásica/patología , Pronóstico , Reacción en Cadena en Tiempo Real de la Polimerasa
9.
Dig Dis Sci ; 62(11): 3167-3176, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28914399

RESUMEN

BACKGROUND: The duodenal gastrointestinal stromal tumors (GISTs) are an extremely rare subset of GISTs. The optimal surgical procedure remains not well defined. AIMS: We assessed the surgical approach and long-term outcomes of patients with duodenal GISTs who underwent limited resection (LR) versus pancreaticoduodenectomy (PD). METHODS: From November 2005 to January 2016, 64 consecutive patients with duodenal GISTs in a single center were retrospectively analyzed. Overall survival (OS), recurrence-free survival (RFS), and perioperative outcomes were analyzed according to the different surgical type. RESULTS: A total of 41 patients (64.1%) underwent LR, while 23 patients (35.9%) underwent PD. All patients had negative surgical margins (R0). Median tumor size was larger for PD (6 cm) versus LR (4 cm) (P = 0.041). PD also had more complications than LR (PD, 69.6 vs. LR, 31.7%) (P = 0.002). The 3-year and 5-year RFS was 62.9 and 44.3%, respectively. The 3-year and 5-year OS was 85.7 and 59.5%, respectively. The multivariate analysis demonstrated the only unfavorable predictive factor was tumor size >5 cm for RFS and OS. Although the complication rate in the PD group was higher than in the LR group, OS and RFS were not affected by the complication (P = 0.492 for OS, P = 0.512 for RFS). PD versus LR was not associated with RFS and OS. Adjuvant imatinib mesylate (IM) did not improve the survival of the patients after operation. CONCLUSIONS: Survival of duodenal GISTs is mainly dependent on tumor biology rather than surgical procedure. LR should be the surgical procedure of choice for duodenal GISTs when technically feasible and no anatomical constrains. LR shows comparable survival and lower risk of postoperative complications compared by PD. The administration of IM both as adjuvant and neoadjuvant therapy for duodenal GISTs needs large population and prospective study to evaluate its effect.


Asunto(s)
Neoplasias Duodenales/cirugía , Tumores del Estroma Gastrointestinal/cirugía , Pancreaticoduodenectomía , Adulto , Anciano , Distribución de Chi-Cuadrado , China , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Neoplasias Duodenales/mortalidad , Neoplasias Duodenales/patología , Femenino , Tumores del Estroma Gastrointestinal/mortalidad , Tumores del Estroma Gastrointestinal/secundario , Humanos , Estimación de Kaplan-Meier , Masculino , Márgenes de Escisión , Persona de Mediana Edad , Índice Mitótico , Análisis Multivariante , Recurrencia Local de Neoplasia , Pancreaticoduodenectomía/efectos adversos , Pancreaticoduodenectomía/mortalidad , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento , Carga Tumoral
10.
Cancer Sci ; 107(4): 507-13, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26752068

RESUMEN

We previously found that a low dose of sorafenib had a prometastatic effect on hepatocellular carcinoma (HCC), which was caused by downregulation of TIP30 expression. More recently, metformin has been shown to have potential as a preventive and therapeutic agent for different cancers, including HCC. This study evaluated whether the combination of sorafenib and metformin is sufficient to revert the expression of TIP30, thereby simultaneously reducing lung metastasis and improving survival. Our data show that the combination of sorafenib and metformin inhibits proliferation and invasion in vitro, prolongs median survival, and reduces lung metastasis of HCC in vivo. This effect is closely associated with the upregulation of TIP30, partly through activating AMP-activated protein kinase. Thioredoxin, a prometastasis factor, is negatively regulated by TIP30 and plays an essential role during the process of HCC metastasis. Overall, our results suggest that metformin might be a potent enhancer for the treatment of HCC by using sorafenib.


Asunto(s)
Acetiltransferasas/biosíntesis , Carcinoma Hepatocelular/tratamiento farmacológico , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Metformina/administración & dosificación , Factores de Transcripción/biosíntesis , Acetiltransferasas/genética , Animales , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patología , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/patología , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/secundario , Ratones , Invasividad Neoplásica/genética , Metástasis de la Neoplasia , Niacinamida/administración & dosificación , Niacinamida/efectos adversos , Niacinamida/análogos & derivados , Compuestos de Fenilurea/administración & dosificación , Compuestos de Fenilurea/efectos adversos , Transducción de Señal , Sorafenib , Tiorredoxinas/genética , Factores de Transcripción/genética , Ensayos Antitumor por Modelo de Xenoinjerto
11.
World J Surg Oncol ; 14(1): 172, 2016 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-27352960

RESUMEN

BACKGROUND: Acinar cell carcinoma (ACC) is a relatively rare pancreatic neoplasm with poorly defined prognosis. This study aimed to investigate this rare pancreatic neoplasm through comparing patients with ACC to pancreatic ductal cell adenocarcinoma (DCA). METHODS: Tianjin Medical University Cancer Institute and Hospital pathology database was reviewed from 1995 to 2015, and 19 patients with pathologically confirmed ACC were enrolled while 19 conventional DCA patients assigned randomly as control. Retrospective review and follow-up were performed for each patient. Regression methods were used to identify differences between ACC and DCA. RESULTS: In our study, most patients suffered from abdominal or back pain, and no lipase hypersecretion syndrome was observed. For ACC, resected cases had better survival than those without resection, and earlier staging was related to longer survival. Resection with postoperative adjuvant therapy had a better outcome than surgery alone. Twelve cases developed recurrence. Compared to DCA, ACC had earlier staging and better survival. The overall 1-, 2-, and 5-year survival rates for patients with ACC were 73.7, 26.3, and 5 %, respectively. CONCLUSIONS: ACC carries a better prognosis than DCA and a similarly high recurrence rate, while surgical resection proved the best first-line approach for it. A well-planned neoadjuvant or adjuvant chemoradiotherapy indeed benefit the patients with ACC.


Asunto(s)
Carcinoma de Células Acinares/cirugía , Carcinoma Ductal Pancreático/cirugía , Pancreatectomía/mortalidad , Neoplasias Pancreáticas/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Acinares/secundario , Carcinoma Ductal Pancreático/secundario , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Pancreáticas/patología , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia
12.
Dig Surg ; 32(2): 82-9, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25721764

RESUMEN

AIMS: This study was conducted in order to investigate the indications for hepatecomy for multinodular hepatocellular carcinoma (MNHCC) in single institution. METHODS: We retrospectively analyzed the medical records from 55 MNHCC patients, mainly with Child-Pugh A liver function, who underwent hepatectomy from January 2006 to December 2008. Both short- and long-term outcomes were analyzed. In addition, the prognostic significance of clinicopathological factors on overall survival (OS) was investigated by univariate analysis using the log-rank test. A Cox proportional hazards model was used in a subsequent multivariate analysis. RESULTS: The perioperative morbidity rate (grade II or higher) was 18.2% (n = 10), and the in-hospital mortality rate was 3.6%. The median OS was 23.9 months (range, 2.5-84 months), whereas the median disease-free survival was 8.75 months (range, 1-65 months). Independent prognostic risk factors of 5-year OS included the number of tumors >2 (p = 0.032) and gross morphology indicating multiple tumor nodules scattered throughout the liver (p = 0.009). CONCLUSIONS: The postoperative morbidity and mortality rates were acceptable. The number of tumors >2 and gross morphology indicating multiple tumor nodules scattered throughout the liver were independent prognostic risk factors for patients with MNHCC after hepatectomy. Patients with both of these features had a very poor prognosis and were not considered suitable for surgery.


Asunto(s)
Carcinoma Hepatocelular/cirugía , Hepatectomía , Neoplasias Hepáticas/cirugía , Adolescente , Adulto , Anciano , Carcinoma Hepatocelular/mortalidad , Femenino , Hepatectomía/mortalidad , Mortalidad Hospitalaria , Humanos , Neoplasias Hepáticas/mortalidad , Masculino , Persona de Mediana Edad , Análisis Multivariante , Complicaciones Posoperatorias/epidemiología , Estudios Retrospectivos , Análisis de Supervivencia , Resultado del Tratamiento , Adulto Joven
13.
Appl Biochem Biotechnol ; 196(3): 1481-1492, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37428386

RESUMEN

CDCA8 expression is abnormally high in a variety of cancers and involved in the biological process of tumor malignancy. In this study, we discovered that the expression of CDCA8 was up-regulated in hepatocellular carcinoma cancer (HCC) tissues and high levels of CDCA8 are associated with larger tumor size, higher AFP (α-fetoprotein) levels, and unfavorable prognosis. Cell functional experiments revealed that CDCA8 silencing remarkably inhibited proliferation and promoted apoptosis in SNU-387 and Hep-3B cells. The results of flow cytometry showed that CDCA8 regulated CDK1 and cyclin B1 expression to arrest at the S phase, inhibited proliferation, and promoted apoptosis. In addition, in vivo studies have confirmed that silencing CDCA8 could regulate CDK1/cyclin B1 signaling axis to inhibit the growth of HCC xenograft tumor. Our study demonstrated CDCA8 acts an oncogene to facilitate cell proliferation of HCC via regulating cell cycle, indicating the promising application value of CDCA8 for HCC diagnosis and clinical treatment.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/patología , Ciclina B1/metabolismo , Neoplasias Hepáticas/patología , Línea Celular Tumoral , Regulación hacia Arriba , Proliferación Celular/genética , Pronóstico , Apoptosis/genética , Regulación Neoplásica de la Expresión Génica , Proteínas de Ciclo Celular/genética , Proteínas de Ciclo Celular/metabolismo
14.
Food Chem ; 463(Pt 2): 141278, 2024 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-39293385

RESUMEN

To investigate the potential of inhibiting starch retrogradation by modifying the functional groups of starch, transglucosidase (TG) was used to facilitate active hydroxyl groups to be exposed through increasing branching degree. Subsequently, hexose oxidase (HOX) advantageously promoted the oxidation of starch chains and increased spatial repulsion of starch backbone. The Fukui Function revealed that the oxygen atoms at the C3 and C4 positions on glucose units had a higher oxidation tendency. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis confirmed that the reactive hydroxyl groups underwent an oxidation process with increasing HOX treatment time. From the crystal structure parameters, the c-axis of native corn starch modified by TG for 16 h and HOX for 48 h (or TGHOX-48) was shortened from 16.92 to 16.32 Å and in the long-term retrogradation, TGHOX-48 exhibited the lowest starch retrogradation rate (0.22).

15.
Food Chem ; 449: 139232, 2024 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-38581794

RESUMEN

To effectively inhibit the retrogradation of staple foods, the effects of maltotetraose-forming amylase(G4-amylase) on the short and long-term retrogradation of different staple starches such as rice starch (RS), wheat starch (WS), potato starch (PS) were studied. The results indicated that G4-amylase decreased the content of amylose. Amylose contents (21.09%) of WSG4 were higher than that (14.82%) of RSG4 and (13.13%) of PSG4. WS had the most obvious change in the chain length distribution of amylopectin. A chains decreased by 18.99% and the B1 chains decreased by 12.08% after G4-amylase treatment. Compared to RS (662 cP) and WS (693 cP), the setback viscosity of RSG4 (338 cP) and WSG4 (385 cP) decreased. Compared to RS (0.41), WS (0.45), and PS (0.51), the long-term retrogradation rate of RSG4 (0.33), WSG4 (0.31), and PSG4 (0.38) significantly reduced. It indicated that G4-amylase significantly inhibited the long-term retrogradation of WS, followed by RS and PS.


Asunto(s)
Amilasas , Maltosa/análogos & derivados , Oryza , Solanum tuberosum , Almidón , Triticum , Almidón/química , Amilasas/química , Amilasas/metabolismo , Triticum/química , Viscosidad , Solanum tuberosum/química , Oryza/química , Amilosa/química , Amilosa/análisis , Maltosa/química , Biocatálisis
16.
Polymers (Basel) ; 16(8)2024 Apr 10.
Artículo en Inglés | MEDLINE | ID: mdl-38674963

RESUMEN

Weak bonds usually make macromolecules stronger; therefore, they are often used to enhance the mechanical strength of polymers. Not enough studies have been reported on the use of weak bonds in flame retardants. A water-soluble polyelectrolyte complex composed of polyethyleneimine (PEI), sodium tripolyphosphate (STPP) and melamine (MEL) was designed and utilized to treat bio-based polyamide 56 (PA56) by a simple three-step process. It was found that weak bonds cross-linked the three compounds to a 3D network structure with MEL on the surface of the coating under mild conditions. The thermal stability and flame retardancy of PA56 fabrics were improved by the controlled coating without losing their mechanical properties. After washing 50 times, PA56 still kept good flame retardancy. The cross-linking network structure of the flame retardant enhanced both the thermal stability and durability of the fabric. STPP acted as a catalyst for the breakage of the PA56 molecular chain, PEI facilitated the char formation and MEL released non-combustible gases. The synergistic effect of all compounds was exploited by using weak bonds. This simple method of developing structures with 3D cross-linking using weak bonds provides a new strategy for the preparation of low-cost and environmentally friendly flame retardants.

17.
Braz J Med Biol Res ; 56: e12296, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37585912

RESUMEN

Regular exercise reduces the risk of malignancy and decreases the recurrence of cancer. However, the mechanisms behind this protection remain to be elucidated. Natural killer (NK) cells are lymphocytes of the innate immune system, which play essential roles in immune defense and effectively prevent cancer metastasis. Physical exercise can increase the activity of NK cells. Interleukin-15 (IL-15) is the best-studied cytokine activator of NK cells, and it was shown to have many positive functional effects on NK cells to improve antitumor responses. The aim of this study was to clarify the possible important mechanisms behind endurance exercise-induced changes in NK cell function, which may be highly correlated with IL-15. An animal model was used to study IL-15 expression level, tumor volume, cancer cell apoptosis, and NK cell infiltration after treadmill exercise. Although IL-15 was highly expressed in skeletal muscle, treadmill exercise further elevated IL-15 levels in plasma and muscle (P<0.05). In addition, tumor weight and volume of tumor-bearing mice were decreased (P<0.05), and liver tumor cell apoptosis was increased after 12 weeks of treadmill exercise (P<0.05). NK cell infiltration was upregulated in tumors from treadmill exercise mice, and the level of interferon-gamma (IFN-γ) and IL-15 were higher than in sedentary mice (P<0.05). The study indicated that regular endurance training can reduce cancer risk, which was related to increased IL-15 expression, activation of the immune killing effect of NK cells, and promotion of tumor cell apoptosis, which can ultimately control tumor growth.


Asunto(s)
Carcinoma Hepatocelular , Entrenamiento Aeróbico , Interleucina-15 , Células Asesinas Naturales , Neoplasias Hepáticas , Condicionamiento Físico Animal , Animales , Ratones , Apoptosis , Carcinoma Hepatocelular/metabolismo , Interleucina-15/metabolismo , Células Asesinas Naturales/metabolismo , Neoplasias Hepáticas/metabolismo , Regulación hacia Arriba
18.
Sci Rep ; 13(1): 19427, 2023 11 08.
Artículo en Inglés | MEDLINE | ID: mdl-37940636

RESUMEN

Endurance exercise could attenuate obesity induced by high fat diet (HFD). Thus, the purpose of this study was to explore the crucial targets that play key roles in the improvement of body fat index (BFI) in obese mice by endurance exercise. Firstly, we constructed murine obesity models: High fat diet control (HFD) group, HFD exercise (HFE) group, normal chow diet control (NC) group, and normal chow diet exercise (NE) group. Next, we identified the BFI improvement related genes using differential gene analysis, and investigated these genes' functional pathways using functional enrichment analysis. The qRT-PCR and western blot assays were used to determine the gene expression and protein expression, respectively. Gene set enrichment analysis was used to explore the potential pathways associated with endurance exercise in obese mice and Mitochondrial respiratory control ratio (RCR) assay was applied to determine the RCR in the liver tissues of mice. We discovered that endurance exercise remarkably reduced the body weights and BFI of HFD-induced obese mice. Runx1t1 was related to the improvement of BFI by endurance exercise in HFD-induced obese mice. Runx1t1 mRNA and protein levels in liver tissues were observably decreased in HFD mice compared to mice in HFE, NC and NE groups. Moreover, Glucagon signaling pathway that was associated with mitochondrial function was significantly activated in HFE mice. The Runx1t1 expression exhibited an observable negative correlation with Acaca in HFD mice. Moreover, the mitochondrial RCR level was significantly increased in HFE mice than that in HFD mice. In HFD-induced obese mice, Runx1t1 was implicated in the improvement of BFI via endurance exercise. Endurance exercise could improve mitochondrial dysfunction in obese mice by activating the Runx1t1.


Asunto(s)
Tejido Adiposo , Obesidad , Ratones , Animales , Ratones Obesos , Obesidad/metabolismo , Peso Corporal , Tejido Adiposo/metabolismo , Hígado/metabolismo , Dieta Alta en Grasa/efectos adversos , Ratones Endogámicos C57BL
19.
Fitoterapia ; 168: 105524, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37146735

RESUMEN

Potentilla longifolia is effective in the treatment of hepatitis as a Chinese herb. We firstly evaluated the effect of water extract of P. longifolia (WEPL) on mice with nonalcoholic fatty liver disease (NAFLD) induced by high-fat (HF) diet. The results showed that WEPL reduced HF-induced increases of the serum ALT, AST, TG and TC, and reduced lipid drops of liver tissues to a different extent compared with HF group; WEPL dose-dependently promoted the phosphorylation degrees of AMPK and ACC; WEPL decreased significantly genes expressions of SREBP1α, FAS and SCD1 and increased PPARα and CD36. Then three new (1-3) and 13 known compounds (4-16) were firstly-isolated from the 95% ethanol extract of this plant. Further experiments showed that a new compound (ganyearmcaooside C) showed the best inhibitory effect on lipid accumulation in 3 T3-L1 cells such as reducing the accumulation of oil droplets and triglyceride level, showing new drug potential for related diseases.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Potentilla , Animales , Ratones , Estructura Molecular , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Hígado , Etanol/metabolismo , Etanol/farmacología , Etanol/uso terapéutico , Dieta Alta en Grasa , Ratones Endogámicos C57BL , Metabolismo de los Lípidos
20.
J Hepatocell Carcinoma ; 10: 673-686, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37125392

RESUMEN

Purpose: The purpose of this study was to investigate the triple-combination therapy of lenvatinib plus sintilimab plus arterially-directed therapy as a conversion therapy for initially unresectable hepatocellular carcinoma (HCC). Patients and Methods: We retrospectively analyzed data from all HCC patients who underwent lenvatinib plus sintilimab plus arterially-directed therapy at Tianjin Medical University Cancer Hospital between December 2018 and October 2020. Of 98 enrolled patients, 37 patients were classified as potentially resectable. We compared the potentially resectable population (PRP) with the non-potentially resectable population (NPRP). The primary study endpoint was conversion rate, and secondary endpoints included progression-free survival (PFS), overall survival (OS), objective response rate (ORR), disease control rate (DCR), and safety. Results: The baseline characteristics were comparable between populations except for a higher proportion of patients with extrahepatic metastases in the NPRP versus PRP (23/61 [37.7%] vs 3/37 [8.1%], respectively; p=0.003). For PRP, the ORR was 67.6% based on RECIST v1.1 (75.7% based on mRECIST), conversion rate was 40.5% (15/37). Of the 15 patients who underwent surgical resection, three achieved complete pathological remission. The median follow-up for all patients was 28 months (range: 2-47). For NPRP, the ORR was 22.9% based on RECIST v1.1 (31.1% based on mRECIST), The median PFS for PRP was significantly longer than that of NPRP (25 vs 13 months, p = 0.0025). The median OS for PRP was significantly longer than that of NPRP (not reached VS 21 months, p=0.014). Hypertension was the most common grade ≥3 adverse reaction in both PRP and NPRP. No new safety signals were observed for any of the treatments. Conclusion: The triple-combination therapy of lenvatinib plus sintilimab plus arterially-directed therapy can convert potentially unresectable HCC into resectable disease and improve long-term survival.

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