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1.
Trends Immunol ; 43(6): 438-448, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35550875

RESUMO

α-Fetoprotein (AFP) is a fetal glycoprotein produced by most human hepatocellular carcinoma tumors. Research has focused on its immunosuppressive properties in pregnancy, autoimmunity, and cancer, and human AFP directly limits the viability and functionality of human natural killer (NK) cells, monocytes, and dendritic cells (DCs). AFP-altered DCs can promote the differentiation of naïve T cells into regulatory T cells. These properties may work to shield tumors from the immune system. Recent efforts to define the molecular characteristics of AFP identified key structural immunoregulatory domains and bioactive roles of AFP-bound ligands in immunomodulation. We propose that a key mechanism of AFP immunomodulation skews DC function through cellular metabolism. Delineating differences between fetal 'normal' AFP (nAFP) and tumor-derived AFP (tAFP) has uncovered a novel role for tAFP in altering metabolism via lipid-binding partners.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Carcinoma Hepatocelular/metabolismo , Células Dendríticas , Feminino , Humanos , Imunomodulação , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Gravidez , alfa-Fetoproteínas/metabolismo
2.
J Cell Mol Med ; 28(6): e18137, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38445791

RESUMO

Hepatocellular cancer is one of the most serious types of cancer in the world, with high incidence and mortality rates. Most HCC patients with long-term chemotherapy develop chemoresistance, leading to a poor prognosis. However, the underlying mechanism of circRNAs in HCC chemoresistance remains unclear. Our research found that circ_0072391(circ_HMGCS1) expression was significantly upregulated in cisplatin-resistant HCC cells. The silence of circ_HMGCS1 attenuated the cisplatin resistance in HCC. Results showed that circ_HMGCS1 regulated the expression of miR-338-5p via acting as microRNA sponges. Further study confirmed that miR-338-5p regulated the expression of IL-7. IL-7 could remodel the immune system by improving T-cell function and antagonising the immunosuppressive network. IL-7 is an ideal target used to enhance the function of the immune system. circ_HMGCS1 exerts its oncogenic function through the miR-338-5p/IL-7 pathway. Inhibition of circ_HMGCS1/miR-338-5p/IL-7 could effectively attenuate the chemoresistance of HCC. IL-7 might be a promising immunotherapy target for HCC cancer treatment.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroRNAs , Humanos , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Interleucina-7/genética , Cisplatino/farmacologia , Cisplatino/uso terapêutico , Resistencia a Medicamentos Antineoplásicos/genética , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , MicroRNAs/genética , Hidroximetilglutaril-CoA Sintase
3.
J Biol Chem ; 299(10): 105251, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37714462

RESUMO

Circadian rhythms are controlled at the cellular level by a molecular clock consisting of several genes/proteins engaged in a transcription-translation-degradation feedback loop. These core clock proteins regulate thousands of tissue-specific genes. Regarding circadian control in neoplastic tissues, reports to date have demonstrated anomalous circadian function in tumor models and cultured tumor cells. We have extended these studies by analyzing circadian rhythmicity genome-wide in a mouse model of liver cancer, in which mice treated with diethylnitrosamine at 15 days develop liver tumors by 6 months. We injected tumor-bearing and control tumor-free mice with cisplatin every 2 h over a 24-h cycle; 2 h after each injection mice were sacrificed and gene expression was measured by XR-Seq (excision repair sequencing) assay. Rhythmic expression of several core clock genes was observed in both healthy liver and tumor, with clock genes in tumor exhibiting typically robust amplitudes and a modest phase advance. Interestingly, although normal hepatic cells and hepatoma cancer cells expressed a comparable number of genes with circadian rhythmicity (clock-controlled genes), there was only about 10% overlap between the rhythmic genes in normal and cancerous cells. "Rhythmic in tumor only" genes exhibited peak expression times mainly in daytime hours, in contrast to the more common pre-dawn and pre-dusk expression times seen in healthy livers. Differential expression of genes in tumors and healthy livers across time may present an opportunity for more efficient anticancer drug treatment as a function of treatment time.


Assuntos
Carcinoma Hepatocelular , Ritmo Circadiano , Neoplasias Hepáticas , Animais , Camundongos , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Ritmo Circadiano/genética , Fígado/fisiopatologia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Masculino , Reparo por Excisão , Proteínas CLOCK/genética , Proteínas CLOCK/metabolismo , Ontologia Genética
4.
Am J Transplant ; 24(5): 733-742, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38387623

RESUMO

Decompensated cirrhosis and hepatocellular cancer are major risk factors for mortality worldwide. Liver transplantation (LT), both live-donor LT or deceased-donor LT, are lifesaving, but there are several barriers toward equitable access. These barriers are exacerbated in the setting of critical illness or acute-on-chronic liver failure. Rates of LT vary widely worldwide but are lowest in lower-income countries owing to lack of resources, infrastructure, late disease presentation, and limited donor awareness. A recent experience by the Chronic Liver Disease Evolution and Registry for Events and Decompensation consortium defined these barriers toward LT as critical in determining overall survival in hospitalized cirrhosis patients. A major focus should be on appropriate, affordable, and early cirrhosis and hepatocellular cancer care to prevent the need for LT. Live-donor LT is predominant across Asian countries, whereas deceased-donor LT is more common in Western countries; both approaches have unique challenges that add to the access disparities. There are many challenges toward equitable access but uniform definitions of acute-on-chronic liver failure, improving transplant expertise, enhancing availability of resources and encouraging knowledge between centers, and preventing disease progression are critical to reduce LT disparities.


Assuntos
Disparidades em Assistência à Saúde , Cirrose Hepática , Transplante de Fígado , Humanos , Acessibilidade aos Serviços de Saúde , Disparidades em Assistência à Saúde/estatística & dados numéricos , Cirrose Hepática/cirurgia , Cirrose Hepática/complicações
5.
Mol Med ; 30(1): 79, 2024 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-38844847

RESUMO

BACKGROUND: Increased level of serum cholic acid (CA) is often accompanied with decreased CYP2E1 expression in hepatocellular carcinoma (HCC) patients. However, the roles of CA and CYP2E1 in hepatocarcinogenesis have not been elucidated. This study aimed to investigate the roles and the underlying mechanisms of CYP2E1 and CA in HCC cell growth. METHODS: The proteomic analysis of liver tumors from DEN-induced male SD rats with CA administration was used to reveal the changes of protein expression in the CA treated group. The growth of CA-treated HCC cells was examined by colony formation assays. Autophagic flux was assessed with immunofluorescence and confocal microscopy. Western blot analysis was used to examine the expression of CYP2E1, mTOR, AKT, p62, and LC3II/I. A xenograft tumor model in nude mice was used to examine the role of CYP2E1 in CA-induced hepatocellular carcinogenesis. The samples from HCC patients were used to evaluate the clinical value of CYP2E1 expression. RESULTS: CA treatment significantly increased the growth of HCC cells and promoted xenograft tumors accompanied by a decrease of CYP2E1 expression. Further studies revealed that both in vitro and in vivo, upregulated CYP2E1 expression inhibited the growth of HCC cells, blocked autophagic flux, decreased AKT phosphorylation, and increased mTOR phosphorylation. CYP2E1 was involved in CA-activated autophagy through the AKT/mTOR signaling. Finally, decreased CYP2E1 expression was observed in the tumor tissues of HCC patients and its expression level in tumors was negatively correlated with the serum level of total bile acids (TBA) and gamma-glutamyltransferase (GGT). CONCLUSIONS: CYP2E1 downregulation contributes to CA-induced HCC development presumably through autophagy regulation. Thus, CYP2E1 may serve as a potential target for HCC drug development.


Assuntos
Autofagia , Carcinoma Hepatocelular , Proliferação de Células , Ácido Cólico , Citocromo P-450 CYP2E1 , Neoplasias Hepáticas , Animais , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/induzido quimicamente , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/induzido quimicamente , Humanos , Citocromo P-450 CYP2E1/metabolismo , Citocromo P-450 CYP2E1/genética , Masculino , Autofagia/efeitos dos fármacos , Linhagem Celular Tumoral , Ratos , Proliferação de Células/efeitos dos fármacos , Camundongos , Ratos Sprague-Dawley , Transdução de Sinais , Proteômica/métodos , Modelos Animais de Doenças , Camundongos Nus
6.
Mol Biol Rep ; 51(1): 190, 2024 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-38270702

RESUMO

Cancer is characterized by the abnormal and uncontrollable division and growth of cells that can infiltrate tissues and alter normal physiological function, which will become crucial and life-threatening if left untreated. Cancer can be a result of genetics, such as mutations or environmental causes, including smoking, lack of physical activity, as well as nutritional imbalance in the body. Vitamin D is one of the foremost nutrients that play a crucial role in a variety of biochemical pathways, and it is an important key factor in several diseases. Vitamin D is an essential nutrient for preventing malignancies and a complementary treatment for cancer through direct and indirect biochemical pathways. In this article, we summarized the correlation between vitamin D and various cancers using an extensive search on PubMed, Google Scholar, and Scopus. This paper reviews the role of vitamin D in different types of cancer.


Assuntos
Neoplasias , Vitamina D , Humanos , Vitaminas , Nutrientes , Exercício Físico
7.
Cancer ; 2023 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-36715017

RESUMO

BACKGROUND: Autoimmune diseases are associated with many cancers but there is a lack of population-based studies with different autoimmune diseases that have a long follow-up. This is also true of hepatobiliary cancers, which include hepatocellular cancer (HCC) and rarer entities of gallbladder cancer (GBC), intra- and extrahepatic cholangiocarcinoma (iCCA and eCCA), and ampullary cancer. METHODS: Diagnostic data on 43 autoimmune diseases were collected from the Swedish Inpatient Register from 1987 to 2018, and cancer data were derived from the national cancer registry from 1997 onward. Relative risks were expressed as standardized incidence ratios (SIRs). RESULTS: In a population of 13.6 million, 1.1 million autoimmune diseases were diagnosed and subsequent hepatobiliary cancer was diagnosed in 3191 patients (17.2% of cancers). SIRs for HCC were 2.73 (men) and 2.86 (women), 3.74/1.96 for iCCA, 2.65/1.37 for GBC, 2.38/1.64 for eCCA, and 1.80/1.85 for ampullary cancer. Significant associations between autoimmune disease and HCC were observed for 13 autoimmune diseases, with the highest risks being for autoimmune hepatitis (48.92/73.53, men/women) and primary biliary cirrhosis (38.03/54.48). GBC was increased after six autoimmune diseases, with high SIRs for ulcerative colitis (12.22/3.24) and men with Crohn disease (9.16). These autoimmune diseases were also associated with a high risk of iCCA, which had seven other associations, and eCCA, which had five other associations. Ampullary cancer occurrence was increased after four autoimmune diseases. CONCLUSION: An autoimmune disease is a common precursor condition for hepatobiliary cancers. This calls for careful control of autoimmune disease symptoms in each patient and encouragement to practice a healthy lifestyle.

8.
Toxicol Appl Pharmacol ; 468: 116514, 2023 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-37061008

RESUMO

BACKGROUND & AIMS: Vinyl chloride (VC) monomer is a volatile organic compound commonly used in industry. At high exposure levels, VC causes liver cancer and toxicant-associated steatohepatitis. However, lower exposure levels (i.e., sub-regulatory exposure limits) that do not directly damage the liver, enhance injury caused by Western diet (WD). It is still unknown if the long-term impact of transient low-concentration VC enhances the risk of liver cancer development. This is especially a concern given that fatty liver disease is in and of itself a risk factor for the development of liver cancer. METHODS: C57Bl/6 J mice were fed WD or control diet (CD) for 1 year. During the first 12 weeks of feeding only, mice were also exposed to VC via inhalation at sub-regulatory limit concentrations (<1 ppm) or air for 6 h/day, 5 days/week. RESULTS: Feeding WD for 1 year caused significant hepatic injury, which was exacerbated by VC. Additionally, VC increased the number of tumors which ranged from moderately to poorly differentiated hepatocellular carcinoma (HCC). Transcriptomic analysis demonstrated VC-induced changes in metabolic but also ribosomal processes. Epitranscriptomic analysis showed a VC-induced shift of the modification pattern that has been associated with metabolic disease, mitochondrial dysfunction, and cancer. CONCLUSIONS: These data indicate that VC sensitizes the liver to other stressors (e.g., WD), resulting in enhanced tumorigenesis. These data raise concerns about potential interactions between VC exposure and WD. It also emphasizes that current safety restrictions may be insufficient to account for other factors that can influence hepatotoxicity.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Hepatopatia Gordurosa não Alcoólica , Cloreto de Vinil , Camundongos , Animais , Cloreto de Vinil/toxicidade , Cloreto de Vinil/metabolismo , Transcriptoma , Carcinoma Hepatocelular/patologia , Dieta Ocidental , Neoplasias Hepáticas/induzido quimicamente , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Fígado/metabolismo , Hepatopatia Gordurosa não Alcoólica/metabolismo , Carcinogênese/metabolismo , Transformação Celular Neoplásica/metabolismo
9.
FASEB J ; 36(4): e22250, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35294071

RESUMO

Combination therapy represents an effective therapeutic approach to overcome hepatocellular cancer (HCC) resistance to immune checkpoint blockade (ICB). Based upon previous work demonstrating that nanoliposome C6-ceramide (LipC6) not only induces HCC apoptosis but also prevents HCC-induced immune tolerance, we now investigate the potential of LipC6 in combination with ICB in HCC treatment. We generated orthotopic HCC-bearing mice, which have typical features in common with human patients, and then treated them with LipC6 in combination with the antibodies (Abs) for programmed cell death protein 1 (PD-1) or cytotoxic T-lymphocyte antigen 4 (CTLA4). The tumor growth was monitored by magnetic resonance imaging (MRI) and the intrahepatic immune profiles were checked by flow cytometry in response to the treatments. Realtime PCR (qPCR) was used to detect the expression of target genes. The results show that LipC6 in combination with anti-CTLA4 Ab, but not anti-PD-1 Ab, significantly slowed tumor growth, enhanced tumor-infiltrating CD8+ T cells, and suppressed tumor-resident CD4+ CD25+ FoxP3+ Tregs. Further molecular investigation indicates that the combinational treatment suppressed transcriptional factor Krüppel-like Factor 2 (KLF2), forkhead box protein P3 (FoxP3), and CTLA4. Our studies suggest that LipC6 in combination with anti-CTLA4 Ab represents a novel therapeutic approach with significant potential in activating anti-HCC immune response and suppressing HCC growth.


Assuntos
Antineoplásicos , Carcinoma Hepatocelular , Neoplasias Hepáticas , Animais , Antineoplásicos/farmacologia , Linfócitos T CD8-Positivos , Antígeno CTLA-4 , Carcinoma Hepatocelular/metabolismo , Ceramidas , Fatores de Transcrição Forkhead/metabolismo , Humanos , Neoplasias Hepáticas/metabolismo , Camundongos
10.
Support Care Cancer ; 31(9): 543, 2023 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-37646853

RESUMO

BACKGROUND: Social determinants of health lead to better cancer care. This multi-site, single-institution study sought to capture data on social determinants of health data in Asian Americans with hepatocellular carcinoma; this group constitutes 60% of patients with this malignancy and are often undertreated or not treated at all. METHODS: This study took advantage of an institutional initiative designed to capture and integrate social determinants of health data into the electronic medical record for all patients. Medical records of Asian Americans with hepatocellular cancer were reviewed to acquire data on housing instability, lack of transportation, financial concerns, and social isolation; a score of 1 indicated poor social determinants of health. RESULTS: Of 112 adult Asian American patients with hepatocellular cancer, 22 (20%) were Southeast Asian, and 74 (67%) described English proficiency/preference. Total noncompletion per domain (no question answered within that domain) was observed in 90 patients (80%) for housing instability; 90 (80%) for lack of transportation; 92 (82%) for financial hardship; and 90 (80%) for social isolation. A score of 1 (highest risk) was observed in 1 patient (0.9%) for housing instability; 1 (0.9%) lack of transportation; no patient for financial hardship; and 1 (0.9%) for social isolation. Of note, institution-wide benchmark total noncompletion rates were 0.3%, 0.3%, 47%, and 39% for these respective domains. CONCLUSION: High total noncompletion rates make social determinants of health data challenging to interpret and underscore the need for evidence-based guidelines on how best to capture such data in underserved patients.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Adulto , Humanos , Asiático , Determinantes Sociais da Saúde , Registros Eletrônicos de Saúde
11.
Environ Res ; 239(Pt 1): 117203, 2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-37793588

RESUMO

BACKGROUND: Hepatocellular Carcinoma (HCC), also called hepatocellular cancer, has emerged as a highly prevalent malignancy globally. By binding to specific RNA via one or more spherical RNA Domains (RBDs) or RNA Motifs (RBMs), RNA Binding Proteins (RBPs) can affect RNA modification, splicing, localization, translation, and stability. METHODS: This paper builds on previous research by further investigating the impact of RBM12 on LC progression. In order to determine the effect of RBM12 expression on the prognosis of patients with hepatocellular cancer, we first investigated its expression in liver cancer cells (LCC) and tissues. The effect of RBM12 on the malignant biological behavior of LCC was subsequently detected using cytological experiments. To explore the upstream mechanism affecting RBM12, we predicted the miRNA targeting RBM12. According to the database, miR-497-5p was the best candidate gene. The double Luciferase reporter gene experiment was executed to validate the bounding of miR-497-5p with RBM12. RESULTS: According to the cytological experiments, a high RBM12 expression promoted the propagation, migration, and invasion of LCC and impeded liver cancer cell apoptosis. By secreting TGF-ß1, RBM12 could induce the EMT process. The miR-497-5p expression is suppressed in hepatocellular cancer. As shown by the CCK8, plate cloning, Transwell, EDU, and other experiments, miR-497-5p suppressed RBM12 expression and tumor growth. The double Luciferase reporter gene system was utilized to verify the combination of miR-497-5p and RBM12. The CPNE1 is a downstream gene regulated by RBM12. A high CPNE1 expression was exhibited in LCC and tissues. The CPNE1 is essential in the process where RBM12 promotes the incidence and progression of liver cancer. CONCLUSIONS: By elucidating the exact molecular mechanism through which RBM12 promotes the initiation and progression of LC, thus, the current investigation provides some reference for the clinical management of LC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroRNAs , RNA Longo não Codificante , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/patologia , Linhagem Celular Tumoral , Regulação Neoplásica da Expressão Gênica , MicroRNAs/genética , MicroRNAs/metabolismo , Luciferases/genética , Luciferases/metabolismo , Proliferação de Células , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , Proteínas de Ligação a RNA/genética , Proteínas de Ligação a RNA/metabolismo
12.
Dig Dis Sci ; 68(5): 1791-1796, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36562886

RESUMO

BACKGROUND: The coronavirus 2019 (COVID-19) pandemic required an immediate and large-scale transition to telemedicine. Telemedicine includes phone visits and video visits. Studies suggest that hepatocellular cancer (HCC) screening rates fell at the beginning of the COVID-19 pandemic. If left unaddressed, HCC morbidity/mortality may increase following the pandemic due to inadequate screening. AIMS: To assess the impact of phone-only visits on HCC screening rates in patients with cirrhosis. METHODS: Utilizing ICD-10 codes, 2 cohorts of patients with cirrhosis were identified. The pre-pandemic cohort had index visit between 1/1/2019 and 6/30/2019 (n = 290). The pandemic cohort (n = 112) was evaluated between 4/7/2020 and 6/7/2020. Each cohort was followed for 6 months from their index visit to determine HCC screening rate. Demographics and socioeconomic data from the American Community Survey database were compiled and compared between the cohorts. RESULTS: HCC screening rates in the pre-pandemic and pandemic cohorts were 72.4% and 69.6%, respectively, p = 0.67. No differences in HCC screening rates were observed between the two cohorts when stratified by demographic and socioeconomic factors. CONCLUSIONS: Use of phone-only visits was associated with adherence to HCC screening similar to that seen with in-person visits. The lack of influence on screening rates by racial/socioeconomic factors suggest telephone-only visits do not exacerbate healthcare disparities. In times of public health of crisis, telephone-only visits may provide the necessary access to hepatology care to ensure HCC screening regimens remain in-place for at-risk patients.


Assuntos
COVID-19 , Carcinoma Hepatocelular , Neoplasias Hepáticas , Telemedicina , Humanos , Detecção Precoce de Câncer , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/epidemiologia , Pandemias , COVID-19/epidemiologia , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/epidemiologia , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/epidemiologia , Telefone
13.
Chem Pharm Bull (Tokyo) ; 71(4): 277-281, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37005252

RESUMO

This study aimed to develop a new and effective application form for the liver surface. We designed a two-layered sheet for the controlled release and local disposition of the anticancer drug, 5-fluorouracil (5-FU), without leakage into the peritoneal cavity. We employed poly(lactic-co-glycolic acid) (PLGA) and hydroxypropyl cellulose (HPC) to form two-layered sheets by attaching a cover sheet and a drug-containing sheet. The prepared two-layered sheets released 5-FU constantly for up to 14 d without any significant leakage from the cover side in vitro. Furthermore, we have applied sheets containing 5-FU to the rat liver surface in vivo. Notably, 5-FU could be detected in the liver attachment region even 28 d after application. The distribution ratio of 5-FU in the attachment region compared to the other liver lobes varied among the sheet formulations with different additive HPC compositions. The area under the liver concentration-time curve (AUC) of 5-FU in the attachment region from 0 to 28 d was the highest in the case of HPC 2% (w/w). This is probably due to the enhanced 5-FU released amount and controlled absorption rate from the liver surface by released HPC. No critical toxic effects were evident by the application of the two-layered sheets from the body weight change and alanine aminotransferase/aspartate aminotransferase (ALT/AST) activities. Consequently, the possible advantage of the two-layered sheets for prolonged retention of a drug in a specific region in the liver was clarified.


Assuntos
Antineoplásicos , Fluoruracila , Ratos , Animais , Antimetabólitos Antineoplásicos , Preparações de Ação Retardada , Portadores de Fármacos , Fígado
14.
Int J Mol Sci ; 24(3)2023 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-36769274

RESUMO

Phytochemicals have long been effective partners in the fight against several diseases, including cancer. Among these, flavonoids are valuable allies for both cancer prevention and therapy since they are known to influence a large panel of tumor-related processes. Particularly, it was revealed that quercetin, one of the most common flavonoids, controls apoptosis and inhibits migration and proliferation, events essential for the development of cancer. In this review, we collected the evidence on the anti-cancer activity of quercetin exploring the network of interactions between this flavonol and the proteins responsible for cancer onset and progression focusing on breast, colorectal and liver cancers, owing to their high worldwide incidence. Moreover, quercetin proved to be also a potentiating agent able to push further the anti-cancer activity of common employed anti-neoplastic agents, thus allowing to lower their dosages and, above all, to sensitize again resistant cancer cells. Finally, novel approaches to delivery systems can enhance quercetin's pharmacokinetics, thus boosting its great potentiality even further. Overall, quercetin has a lot of promise, given its multi-target potentiality; thus, more research is strongly encouraged to properly define its pharmaco-toxicological profile and evaluate its potential for usage in adjuvant and chemoprevention therapy.


Assuntos
Neoplasias Colorretais , Neoplasias Hepáticas , Neoplasias , Humanos , Quercetina/farmacologia , Quercetina/uso terapêutico , Quercetina/metabolismo , Flavonoides/farmacologia , Flavonóis , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Colorretais/tratamento farmacológico
15.
Khirurgiia (Mosk) ; (9): 72-78, 2023.
Artigo em Russo | MEDLINE | ID: mdl-37707335

RESUMO

OBJECTIVE: To analyze the results of endovascular embolization of malignant tumors and liver metastases. MATERIAL AND METHODS: We analyzed international studies on the treatment of patients with neoplastic liver lesions and complications after regional endovascular embolization following leakage of chemotherapeutic drugs from the target vessel and negative systemic effects. The results of embolization of liver arteries without chemotherapeutic drugs were also analyzed. We reviewed the PubMed, The Cochrane Library, Web of Science databases, as well as Russian scientific and practical journals. CONCLUSION: Literature data indicate high clinical effectiveness of interventional treatment of patients with malignant neoplasms and metastatic liver damage.


Assuntos
Embolização Terapêutica , Neoplasias Hepáticas , Humanos , Embolização Terapêutica/efeitos adversos , Neoplasias Hepáticas/cirurgia , Bases de Dados Factuais , Artéria Hepática
16.
J Gene Med ; 24(8): e3440, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35816558

RESUMO

BACKGROUND: Hepatocellular cancer (HCC) is a lethal malignancy with extremely poor prognosis. In the present study, we aimed to investigate the role and underlying mechanism of SNHG1 in HCC progression. METHODS: Combined with bioinformatics and experimental validation, we explored the clinical significance of SNHG1 in HCC. A Cell Counting Kit-8 assay, cell colony formation assay, and subcutaneous tumorigenesis experiments of nude mice were conducted to evaluate the pro-proliferative capacity of SNHG1. Glucose consumption and lactate production were measured to explore the regulatory role of SNHG1 in glycolysis. Nuclear-cytoplasmic separation, quantitative real-time polymerase chain reaction and Western blot assays, chromatin immunoprecipitation, and luciferase reporter and RNA immunoprecipitation assays were performed to investigate the molecular mechanisms of SNHG1 in HCC. RESULTS: SNHG1 expression was dramatically increased in HCC and positively correlated with poor prognosis. E2F1 bound to the SNHG1 promoter region to activate SNHG1 transcription. Furthermore, SNHG1 served as a molecular sponge for miR-326 to sequester the interaction of miR-326 and pyruvate kinase M2 (PKM2), facilitating the expression of PKM2. Activating PKM2 expression was revealed to be one of mechanisms of SNHG1 with respect to promoting glycolysis and the proliferation of HCC cells. CONCLUSIONS: E2F1-activated SNHG1 modulates the miR-326/PKM2 axis to facilitate glycolysis and the proliferation of HCC cells. Targeting SNHG1 could be a promising therapeutic option for HCC.


Assuntos
Carcinoma Hepatocelular , Leucemia Mieloide Aguda , Neoplasias Hepáticas , MicroRNAs , RNA Longo não Codificante/metabolismo , Animais , Carcinoma Hepatocelular/patologia , Linhagem Celular Tumoral , Proliferação de Células/genética , Regulação Neoplásica da Expressão Gênica , Glicólise/genética , Humanos , Leucemia Mieloide Aguda/genética , Neoplasias Hepáticas/patologia , Camundongos , Camundongos Nus , MicroRNAs/genética , MicroRNAs/metabolismo , Piruvato Quinase/genética , Piruvato Quinase/metabolismo , RNA Longo não Codificante/genética
17.
Haemophilia ; 28(5): 769-775, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35727998

RESUMO

BACKGROUND: Hepatocellular carcinoma (HCC) is a major complication of chronic hepatitis C virus (HCV) infection. Among haemophilic (H) men, HCV is the leading cause of liver disease. Direct-acting antiviral agents (DAA) reduce HCV viral load, but impact on HCC is unknown. METHODS: This was a retrospective study of adult H and nonhaemophilic (NH) male discharges, with and without HCC, identified by ICD-10 codes in the National Inpatient Sample (NIS) database, 2016-2018, with DAA availability. Analyses included discharge-level weights to reflect national estimates. Categorical variables were assessed by Rao-Scott chi-square and continuous variables by weighted simple linear regression. HCC correlates were determined by weighted multivariable logistic regression. RESULTS: Among 7,674,969 adult male discharges, 3730 H (.04%) were identified in 2016-2018, of whom 10.06% had HCV and 1.07% had HCC, significantly higher than NH (1.22% and .27%, respectively) all P < .001. Annual HCC rates were similar during the 3-year period (2016-2018) in H and NH. Among H, HCC is associated with older age and higher rates of HCV, HBV, NASH, end-stage liver disease, and Charlson comorbidity (CCI), each P < .001. Among HCC, H were younger and more likely HIV+, each P < .001, but less likely alcoholic (P = .018) or hyperlipidaemic (P = .008) compared to NH. In multivariable regression, risk factors for HCC among H included NASH (OR 21.6), HCV (OR 3.96), CCI (OR1.54), all P < .001, while HIV and hyperlipidaemia were protective. CONCLUSION: From 2016 to 2018, HCC rates did not change significantly in haemophilia discharges. NASH, HCV, and CCI are significant risks for HCC in haemophilia during the DAA-era.


Assuntos
Carcinoma Hepatocelular , Infecções por HIV , Hemofilia A , Hepatite C Crônica , Neoplasias Hepáticas , Hepatopatia Gordurosa não Alcoólica , Adulto , Antivirais/uso terapêutico , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/etiologia , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Hemofilia A/complicações , Hemofilia A/tratamento farmacológico , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Humanos , Pacientes Internados , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/etiologia , Masculino , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Hepatopatia Gordurosa não Alcoólica/patologia , Prevalência , Estudos Retrospectivos , Fatores de Risco
18.
AJR Am J Roentgenol ; 218(6): 1030-1039, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34985314

RESUMO

BACKGROUND. Patients who undergo bland hepatic artery embolization (HAE) for the treatment of hepatic malignancy may undergo routine overnight postprocedure hospitalization to monitor for postembolization syndrome (PES) given the potential for ischemic injury from HAE to lead to rapid onset of PES. In our experience, PES after HAE is more frequent in patients without cirrhosis. OBJECTIVE. The purpose of this study was to investigate the utility of cirrhosis and other patient and procedural characteristics in predicting the development of PES after bland HAE performed for the treatment of hepatic malignancy. METHODS. This retrospective study included 167 patients (122 men and 45 women; mean age, 63.5 ± 13.1 [SD] years) who underwent a total of 248 bland HAE procedures to treat primary or secondary hepatic malignancy. All patients were hospitalized for 24 hours of observation after HAE to monitor for and manage PES symptoms. PES severity was graded using the Southwest Oncology Group's toxicity coding scale. Patient and procedural characteristics were recorded. Associations with the development of PES were explored. A risk model to predict the risk of PES was constructed using independent predictors of PES in multivariable analysis. RESULTS. PES developed after 51.2% (127/248) of procedures; 23 cases were mild, 50 were moderate, and 54 were severe. PES developed in 32.1% (45/140) of patients with cirrhosis versus 75.9% (82/108) of patients without cirrhosis, whereas severe PES developed in 10.0% (14/140) versus 37.0% (40/108) of such patients, respectively. In multivariable analysis (which controlled for primary versus secondary malignancy, comorbidities, pre-procedure laboratory values, size and multiplicity of treated lesions, lobar vs segmental embolization, embolized artery, and embolic material used), independent predictors of lower likelihood of PES were older age (OR = 0.95 [95% CI, 0.92-0.99]), cirrhosis (OR = 0.26 [95% CI, 0.11-0.64]), and primary hepatic malignancy (OR = 0.34 [95% CI, 0.13-0.93]); the only independent predictor of a higher likelihood of PES was embolization of 50% or more of liver volume (OR = 4.29 [95% CI, 1.89-10.18]). A risk model using these factors had sensitivity of 75.6% and specificity of 76.0% for predicting PES. CONCLUSION. Cirrhosis was associated with a decreased risk of PES after bland HAE performed for the treatment of hepatic malignancy. A risk model combining cirrhosis and other factors had good performance in predicting the risk of PES. CLINICAL IMPACT. These findings may be applied to the selection of patients for early discharge after bland HAE, to avoid the need for overnight inpatient monitoring.


Assuntos
Embolização Terapêutica , Neoplasias Hepáticas , Idoso , Embolização Terapêutica/métodos , Feminino , Artéria Hepática/diagnóstico por imagem , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/terapia , Neoplasias Hepáticas/irrigação sanguínea , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/terapia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Síndrome
19.
Periodontol 2000 ; 89(1): 125-141, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35244954

RESUMO

The liver carries out a wide range of functions ranging from the control of metabolites, nutrient storage, and detoxification to immunosurveillance. While inflammation is essential for the tissue remodeling and maintenance of homeostasis and normal liver physiology, constant exposure to dietary and microbial products creates a niche for potentially prolonged immune activation and unresolved inflammation in susceptible host. Failure to restrain inflammation can lead to development of chronic liver diseases characterized by fibrosis, cirrhosis and eventually liver failure. The liver maintains close interactions with numerous organs which can influence its metabolism and physiology. It is also known that oral cavity microenvironment can influence the physiological conditions of other organs and emerging evidence implicates that this could be true for the liver as well. Presence of chronic inflammation and dysbiotic microbiota is a common feature leading to clinical pathology both in periodontitis and chronic liver diseases (CLDs). In fact, known CLDs appear to have some relationship with periodontitis, which impacts the onset or progression of these conditions in a bidirectional crosstalk. In this review, we explore the emerging association between oral-gut-liver axis focusing on periodontitis and common CLDs including nonalcoholic fatty liver disease, chronic viral hepatitis, liver cirrhosis, and hepatocellular cancer. We highlight the immune pathways and oral microbiome interactions which can link oral cavity and liver health and offer perspectives for future research.


Assuntos
Periodontite Crônica , Hepatopatia Gordurosa não Alcoólica , Disbiose/complicações , Humanos , Inflamação
20.
Support Care Cancer ; 30(9): 7773-7781, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35710640

RESUMO

PURPOSE: This study was conducted to identify the levels of comfort-care provided by trans-arterial chemoembolisation (TACE) nurses and examine the discriminant factors thereof. METHODS: Nurses (n = 146) with experience in caring for TACE patients, participated in this study. The data were collected using an online self-rated questionnaire and analysed with descriptive statistics and discriminant analysis. The discriminating factors included perception of post-embolisation syndrome and symptom interference, caring attitude, barriers to pain and nausea/vomiting management, and supportive care competence. RESULTS: The participants were classified into three groups, depending on the level of their comfort-care: "low" (n = 27), "moderate" (n = 88), and "high" (n = 31) comfort-care groups. One function significantly discriminated between the low and high comfort-care groups and correctly classified 79.3% of the participants in the cross-validation run. Supportive care competence (0.864), caring attitude (0.685), perception of symptom interference (0.395), perception of post-embolisation syndrome (0.321), and barriers to nausea/vomiting management (- 0.343) were significant discriminant factors of comfort-care. CONCLUSION: A low proportion of the participants provided high levels of comfort-care, which was determined by five discriminant factors. The study's findings imply that the development of supportive care competence, authentic human caring attitude, early detection of patients' symptoms and symptom interference, and the development of manuals and guidelines for removing barriers for nausea and vomiting are needed to improve the comfort-care of nurses caring for TACE patients.


Assuntos
Embolização Terapêutica , Atitude do Pessoal de Saúde , Humanos , Náusea , Cuidados Paliativos , Inquéritos e Questionários , Vômito
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