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BACKGROUND: Lenvatinib (LEN) and atezolizumab + bevacizumab (A + B) have drastically changed the treatment paradigm for advanced hepatocellular carcinoma (HCC). Before these landmark trials, sorafenib (SOR) served as the standard first-line treatment for a decade. Our study aimed to assess the outcomes of HCC patients treated during the SOR era (2008-2018) in contrast to those in the post-SOR era (2018-2021), of which the predominant first-line treatments were LEN or A + B. METHODS: Inclusion criteria of the study were all HCC patients in the Canadian province of Alberta who started first-line systemic therapy at cancer centers between 1 January 2008 and 31 December 2021. Survival outcomes, including overall survival (OS) and progression-free survival (PFS), along with clinician-assessed response rate (RR), were subject to retrospective analysis. RESULTS: Of 372 total patients, 230 received treatment in the SOR era and 142 in the post-SOR era. The demographic and clinical characteristics for the SOR era and post-SOR era groups are as follows, respectively: the median age was 63 and 64 years, 80% and 81% were male, and 24% and 11% were of East Asian ethnicity. Before receiving systemic treatment, 40% and 33% received TACE, 7% and 9% received TARE, and 3% and 14% received SBRT in the two eras, respectively. In the post-SOR era, patients received A + B (23%), LEN (51%), and SOR (23%) as first-line treatment. There was a statistically significant improvement in RR (15% vs. 26%; p = 0.02), median PFS (3.8 months vs. 7.9 months; p < 0.0001), and median OS (9.8 months vs. 17.0 months; p < 0.0001). CONCLUSIONS: In this retrospective multicenter real-world study, HCC patients treated in the post-SOR era, where LEN and A + B were commonly used first-line treatments, exhibited superior OS, PFS, and RR compared to patients treated in the SOR era. The findings of this study affirm the tangible progress achieved in the real world in enhancing outcomes for HCC patients through advancements in treatments over the past 15 years.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Compuestos de Fenilurea , Quinolinas , Sorafenib , Humanos , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/terapia , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/terapia , Quinolinas/uso terapéutico , Compuestos de Fenilurea/uso terapéutico , Masculino , Femenino , Persona de Mediana Edad , Sorafenib/uso terapéutico , Estudios Retrospectivos , Anciano , Anticuerpos Monoclonales Humanizados/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Supervivencia sin Progresión , Bevacizumab/uso terapéutico , Resultado del Tratamiento , Inmunoterapia/métodosRESUMEN
INTRODUCTION: Hepatocellular carcinoma (HCC) represents a major global health concern, characterized by evolving etiological patterns and a range of treatment options. Among various prognostic factors, sarcopenia, characterized by loss of skeletal muscle mass, strength, and function, has emerged as a pivotal contributor to HCC outcomes. Focusing on liver transplantation, surgical resection, locoregional treatments, and systemic therapies, this review aims to analyze the impact of sarcopenia on HCC treatment outcomes, shedding light on an underexplored subject in the pursuit of more personalized management. METHODS: A comprehensive literature review was conducted by searching peer-reviewed articles on sarcopenia and treatment outcomes in patients with HCC from inception up to October 2023. RESULTS: Sarcopenia was found to be prevalent among HCC patients, exhibiting different occurrence, possibly attributable to diverse diagnostic criteria. Notably, despite variations in studies utilizing skeletal muscle indices, sarcopenia independently correlated with lower overall survival (OS), recurrence-free survival (RFS), and progression-free survival (PFS) across surgical (both transplantation and resection), locoregional, and systemic therapies, including tyrosine-kinase inhibitors (TKIs) and immune-checkpoint inhibitors (ICIs). Moreover, a link between sarcopenia and increased rate and severity of adverse events, particularly in surgery and TKIs recipients, and larger tumor size at diagnosis was observed. While baseline sarcopenia negatively influenced treatment outcomes, alterations in muscle mass post-treatment emerged as primary determinants of reduced OS. CONCLUSIONS: Sarcopenia, either present before or after HCC treatment, negatively correlates with response to it, across all etiologies and therapeutic strategies. Although only a few studies have evaluated the impact of supervised physical activity training on muscle mass and OS after HCC treatment, it is crucial to evaluate the presence of sarcopenia before treatment initiation, to better stratify patients' prognosis, thus performing a more tailored approach, and identify therapies able to restore muscle mass in HCC patients. Conversely, the impact of sarcopenia on HCC recurrence and extrahepatic spread remains inadequately explored.
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The first-line treatment for advanced hepatocellular carcinoma (HCC) combines immune checkpoint inhibitors and antiangiogenesis agents to prolong patient survival. Nonetheless, this approach has several limitations, including stringent inclusion criteria and suboptimal response rates that stem from the severe off-tumor side effects and the unfavorable pharmacodynamics and pharmacokinetics of different drugs delivered systemically. Herein, we propose a single-agent smart nanomedicine-based approach that mimics the therapeutic schedule in a targeted and biocompatible manner to elicit robust antitumor immunity in advanced HCC. Our strategy employed pH-responsive carriers, poly(ethylene glycol)-poly(ß-amino esters) amphiphilic block copolymer (PEG-PAEs), for delivering apatinib (an angiogenesis inhibitor), that were surface-coated with plasma membrane derived from engineered cells overexpressing PD-1 proteins (an immune checkpoint inhibitor to block PD-L1). In an advanced HCC mouse model with metastasis, these biomimetic responsive nanoconverters induced significant tumor regression (5/9), liver function recovery, and complete suppression of lung metastasis. Examination of the tumor microenvironment revealed an increased infiltration of immune effector cells (CD8+ and CD4+ T cells) and reduced immunosuppressive cells (myeloid-derived suppressor cells and T regulatory cells) in treated tumors. Importantly, our nanomedicine selectively accumulated in both small and large HCC occupying >50% of the liver volume to exert therapeutic effects with minimal systemic side effects. Overall, these findings highlight the potential of such multifunctional nanoconverters to effectively reshape the tumor microenvironment for advanced HCC treatment.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Ratones , Animales , Humanos , Carcinoma Hepatocelular/patología , Inhibidores de Puntos de Control Inmunológico/farmacología , Neoplasias Hepáticas/patología , Biomimética , Inmunoterapia , Microambiente TumoralRESUMEN
Hepatocellular carcinoma (HCC), the main pathological type of liver cancer, is related to risk factors such as viral hepatitis, alcohol intake, and non-alcoholic fatty liver disease (NAFLD). The constitutive activation of the PI3K/AKT signaling pathway is common in HCC and has essential involvement in tumor progression. The serine/threonine kinase AKT has several downstream substrates, which have been implicated in the regulation of cellular metabolism. However, the contribution of each of the three AKT isoforms, i.e., AKT1, AKT2 and AKT3, to HCC metabolism has not been comprehensively investigated. In this study, we analyzed the functional role of AKT1, AKT2 and AKT3 in HCC metabolism. The overexpression of activated AKT1, AKT2 and AKT3 isoforms in the human HCC cell lines Hep3B and Huh7 resulted in higher oxygen consumption rate (OCR), ATP production, maximal respiration and spare respiratory capacity in comparison to vector-transduced cells. Vice versa, lentiviral vector-mediated knockdowns of each AKT isoform reduced OCR in both cell lines. Reduced OCR rates observed in the three AKT isoform knockdowns were associated with reduced extracellular acidification rates (ECAR) and reduced lactate production in both analyzed cell lines. Mechanistically, the downregulation of OCR by AKT isoform knockdowns correlated with an increased phosphorylation of the pyruvate dehydrogenase on Ser232, which negatively regulates the activity of this crucial gatekeeper of mitochondrial respiration. In summary, our data indicate that each of the three AKT isoforms is able to upregulate OCR, ECAR and lactate production independently of each other in human HCC cells through the regulation of the pyruvate dehydrogenase.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Proteínas Proto-Oncogénicas c-akt , Humanos , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Línea Celular Tumoral , Ácido Láctico/metabolismo , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Oxidorreductasas , Oxígeno/metabolismo , Fosfatidilinositol 3-Quinasas , Isoformas de Proteínas/genética , Isoformas de Proteínas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , PiruvatosRESUMEN
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related deaths in the world. Metabolic reprogramming is considered a new hallmark of cancer, but it remains unclearly described in HCC. The dysregulation of the PI3K/AKT/mTOR signaling pathway is common in HCC and is, therefore, a topic of further research and the concern of developing a novel target for liver cancer therapy. In this review, we illustrate mechanisms by which this signaling network is accountable for regulating HCC cellular metabolism, including glucose metabolism, lipid metabolism, amino acid metabolism, pyrimidine metabolism, and oxidative metabolism, and summarize the ongoing clinical trials based on the inhibition of the PI3K/AKT/mTOR pathway in HCC.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/metabolismo , Neoplasias Hepáticas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Línea Celular Tumoral , Transducción de Señal/fisiología , Serina-Treonina Quinasas TOR/metabolismoRESUMEN
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related deaths. There is an urgent need for new targets to treat HCC due to limited treatment options and drug resistance. Many cancer cells are known to have high amount of glycogen than their tissue of origin and inhibition of glycogen catabolism induces cancer cell death by apoptosis. To further understand the role of glycogen in HCC and target it for pharmacotherapy, we studied metabolic adaptations and mitochondrial function in HepG2 cells after pharmacological inhibition of glycogen phosphorylase (GP) by CP-91149 (CP). GP inhibition increased the glycogen levels in HepG2 cells without affecting overall glucose uptake. Glycolytic capacity and importantly glycolytic reserve decreased significantly. Electron microscopy revealed that CP treatment altered mitochondrial morphology leading to mitochondrial swelling with less defined cristae. A concomitant decrease in mitochondrial oxygen consumption and mitochondria-linked ATP generation was observed. Metabolomics and enzyme activity / expression studies showed a decrease in the pentose phosphate pathway. In addition, CP treatment decreased the growth of HepG2 3D tumor spheroids in a dose- and time-dependent manner. Taken together, our study provides insights into metabolic alterations and mitochondrial dysfunction accompanying apoptosis in HepG2 cells upon GP inhibition. Our study can aid in the understanding of the mechanism and development of metabolic inhibitors to treat HCC.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Apoptosis , Carcinoma Hepatocelular/metabolismo , Glucógeno/metabolismo , Glucógeno Fosforilasa/metabolismo , Humanos , Neoplasias Hepáticas/metabolismo , Mitocondrias/metabolismoRESUMEN
Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths and the fifth most common cancer worldwide. Clinically therapeutic options for HCC are very limited, and the overall survival rate of patients is very low. Therefore, early diagnosis and treatment of HCC have important impact on overall survival of patients. At present, alpha-fetoprotein (AFP) is one of the most widely used serological markers for HCC. Many evidences have shown that as a specific onco-protein, AFP has great research value in the occurrence, development, diagnosis and treatment of HCC. Here, we briefly introduce the molecular mechanism of AFP in the regulation of HCC occurrence and development, and its role in tumor escape from immune surveillance. We focus on the application of AFP as an important HCC target or carcino-embryonic antigen (CEA) in HCC clinical diagnosis and treatment.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Biomarcadores de Tumor/genética , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/terapia , Detección Precoz del Cáncer , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/terapia , alfa-FetoproteínasRESUMEN
BACKGROUND/AIM: The association between MHC class I polypeptide-related sequence A (MICA) and hepatocellular carcinoma (HCC) development was identified in our previous genome-wide association study. Decreasing soluble MICA (sMICA) through MICA sheddases suppression facilitates natural killer (NK) cell-mediated cytotoxicity. The expression of ADAM9 in HCC has been correlated with poor prognosis, and our recent study showed that its suppression contributes to cancer elimination by decreasing sMICA. MATERIALS AND METHODS: Human HCC cell line PLC/PRF/5 and HepG2 cells were used. sMICA levels were measured by ELISA. Expression of retinoid X receptors (RXRs) and retinoic acid receptors (RARs) was knocked down by siRNA. RESULTS: In our screening of FDA-approved drugs in vitro, retinoids were found to be efficient ADAM9 and ADAM10 inhibitors. Treatment with retinoids reduced sMICA levels in human HCC cells. Interestingly, the effects were abrogated by depletion of the retinoid receptor RXRα. CONCLUSION: Retinoids can be potential novel agents for HCC treatment.
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Proteínas ADAM/metabolismo , Proteína ADAM10/metabolismo , Antígenos de Histocompatibilidad Clase I/metabolismo , Proteínas de la Membrana/metabolismo , Retinoides/farmacología , Proteínas ADAM/antagonistas & inhibidores , Proteínas ADAM/genética , Proteína ADAM10/antagonistas & inhibidores , Proteína ADAM10/genética , Biocatálisis/efectos de los fármacos , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Sinergismo Farmacológico , Células Hep G2 , Antígenos de Histocompatibilidad Clase I/genética , Humanos , Proteínas de la Membrana/antagonistas & inhibidores , Proteínas de la Membrana/genética , Estructura Molecular , Compuestos de Fenilurea/farmacología , Piridinas/farmacología , Interferencia de ARN , Receptores X Retinoide/genética , Receptores X Retinoide/metabolismo , Retinoides/química , SolubilidadRESUMEN
Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths and the fifth most common cancer worldwide. Clinically therapeutic options for HCC are very limited, and the overall survival rate of patients is very low. Therefore, early diagnosis and treatment of HCC have important impact on overall survival of patients. At present, alpha-fetoprotein (AFP) is one of the most widely used serological markers for HCC. Many evidences have shown that as a specific onco-protein, AFP has great research value in the occurrence, development, diagnosis and treatment of HCC. Here, we briefly introduce the molecular mechanism of AFP in the regulation of HCC occurrence and development, and its role in tumor escape from immune surveillance. We focus on the application of AFP as an important HCC target or carcino-embryonic antigen (CEA) in HCC clinical diagnosis and treatment.
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Humanos , Biomarcadores de Tumor/genética , Carcinoma Hepatocelular/terapia , Detección Precoz del Cáncer , Neoplasias Hepáticas/terapia , alfa-FetoproteínasRESUMEN
The rapid development of CRISPR/Cas9 systems has opened up tantalizing prospects to sensitize cancers to chemotherapy using efficient targeted genome editing, but safety concerns and possible off-target effects of viral vectors remain a major obstacle for clinical application. Thus, the construction of novel nonviral tumor-targeting nanodelivery systems has great potential for the safe application of CRISPR/Cas9 systems for gene-chemo-combination therapy. Here, we report a polyamidoamine-aptamer-coated hollow mesoporous silica nanoparticle for the co-delivery of sorafenib and CRISPR/Cas9. The core-shell nanoparticles had good stability, enabled ultrahigh drug loading, targeted delivery, and controlled-release of the gene-drug combination. The nanocomplex showed >60% EGFR-editing efficiency without off-target effects in all nine similar sites, regulating the EGFR-PI3K-Akt pathway to inhibit angiogenesis, and exhibited a synergistic effect on cell proliferation. Importantly, the co-delivery nanosystem achieved efficient EGFR gene therapy and caused 85% tumor inhibition in a mouse model. Furthermore, the nanocomplex showed high accumulation at the tumor site in vivo and exhibited good safety with no damage to major organs. Due to these properties, the nanocomplex provides a versatile delivery approach for efficient co-loading of gene-drug combinations, allowing for precise gene editing and synergistic inhibition of tumor growth without apparent side effects on normal tissues.
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Sistemas CRISPR-Cas , Carcinoma Hepatocelular/tratamiento farmacológico , Neoplasias Hepáticas/tratamiento farmacológico , Nanopartículas/química , Dióxido de Silicio/química , Sorafenib/uso terapéutico , Animales , Aptámeros de Nucleótidos/química , Aptámeros de Nucleótidos/toxicidad , Proteína 9 Asociada a CRISPR/genética , Línea Celular Tumoral , Portadores de Fármacos/química , Portadores de Fármacos/toxicidad , Liberación de Fármacos , Molécula de Adhesión Celular Epitelial/química , Receptores ErbB/genética , Receptores ErbB/metabolismo , Edición Génica , Genes erbB-1 , Humanos , Ratones , Nanopartículas/toxicidad , Poliaminas/química , Poliaminas/toxicidad , Porosidad , Transducción de Señal/efectos de los fármacos , Dióxido de Silicio/toxicidadRESUMEN
The cancer mortality rate of hepatocellular carcinoma (HCC) is the second highest in the world and the therapeutic options are limited. The incidence of this deadly cancer is rising at an alarming rate because of the high degree of resistance to chemo- and radiotherapy, lack of proper, and adequate vaccination to hepatitis B, and lack of consciousness and knowledge about the disease itself and the lifestyle of the people. DNA methylation and DNA methylation-induced epigenetic alterations, due to their potential reversibility, open the access to develop novel biomarkers and therapeutics for HCC. The contribution to these epigenetic changes in HCC development still has not been thoroughly summarized. Thus, it is necessary to better understand the new molecular targets of HCC epigenetics in HCC diagnosis, prevention, and treatment. This review elaborates on recent key findings regarding molecular biomarkers for HCC early diagnosis, prognosis, and treatment. Currently emerging epigenetic drugs for the treatment of HCC are summarized. In addition, combining epigenetic drugs with nonepigenetic drugs for HCC treatment is also mentioned. The molecular mechanisms of DNA methylation-mediated HCC resistance are reviewed, providing some insights into the difficulty of treating liver cancer and anticancer drug development.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/genética , Metilación de ADN , Resistencia a Antineoplásicos , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/genética , PronósticoRESUMEN
BACKGROUND & AIMS: The effect of hepatocellular carcinoma (HCC) on the response to interferon-free direct-acting antiviral (DAA) therapy in patients with chronic hepatitis C (CHC) infection remains unclear. Using a systematic review and meta-analysis approach, we aimed to investigate the effect of DAA therapy on sustained virologic response (SVR) among patients with CHC and either active, inactive or no HCC. METHODS: PubMed, Embase, Web of Science, and the Cochrane Central Register of Controlled Trials were searched from 1/1/2013 to 9/24/2018. The pooled SVR rates were computed using DerSimonian-Laird random-effects models. RESULTS: We included 49 studies from 15 countries, comprised of 3,341 patients with HCC and 35,701 without HCC. Overall, the pooled SVR was lower in patients with HCC than in those without HCC (89.6%, 95% CI 86.8-92.1%, I2â¯=â¯79.1% vs. 93.3%, 95% CI 91.9-94.7%, I2â¯=â¯95.0%, pâ¯=â¯0.0012), translating to a 4.8% (95% CI 0.2-7.4%) SVR reduction by meta-regression analysis. The largest SVR reduction (18.8%) occurred in patients with active/residual HCC vs. inactive/ablated HCC (SVR 73.1% vs. 92.6%, pâ¯=â¯0.002). Meanwhile, patients with HCC who received a prior liver transplant had higher SVR rates than those who did not (pâ¯<0.001). Regarding specific DAA regimens, patients with HCC treated with ledipasvir/sofosbuvir had lower SVR rates than patients without HCC (92.6%, nâ¯=â¯884 vs. 97.8%, nâ¯=â¯13,141, pâ¯=â¯0.026), but heterogeneity was high (I2â¯=â¯84.7%, pâ¯<0.001). The SVR rate was similar in patients with/without HCC who were treated with ombitasvir/paritaprevir/ritonavir⯱â¯dasabuvir (nâ¯=â¯101) (97.2% vs. 94.8%, pâ¯=â¯0.79), or daclatasvir/asunaprevir (91.7% vs. 89.8%, pâ¯=â¯0.66). CONCLUSION: Overall, SVR rates were lower in patients with HCC, especially with active HCC, compared to those without HCC, though heterogeneity was high. Continued efforts are needed to aggressively screen, diagnose, and treat HCC to ensure higher CHC cure rates. LAY SUMMARY: There are now medications (direct-acting antivirals or "DAAs") that can "cure" hepatitis C virus, but patients with hepatitis C and liver cancer may be less likely to achieve cure than those without liver cancer. However, patients with liver cancer are also more likely to have advanced liver disease and risk factors that can decrease cure rates, so better controlled studies are needed to confirm these findings.
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Antivirales/uso terapéutico , Carcinoma Hepatocelular/complicaciones , Hepacivirus/efectos de los fármacos , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/tratamiento farmacológico , Neoplasias Hepáticas/complicaciones , Respuesta Virológica Sostenida , 2-Naftilamina , Adolescente , Adulto , Anilidas/uso terapéutico , Bencimidazoles/uso terapéutico , Carbamatos/uso terapéutico , Ciclopropanos , Femenino , Fluorenos/uso terapéutico , Humanos , Isoquinolinas/uso terapéutico , Lactamas Macrocíclicas , Trasplante de Hígado , Compuestos Macrocíclicos/uso terapéutico , Masculino , Prolina/análogos & derivados , Ritonavir/uso terapéutico , Sofosbuvir/uso terapéutico , Sulfonamidas/uso terapéutico , Uracilo/análogos & derivados , Uracilo/uso terapéutico , Valina , Adulto JovenRESUMEN
AIMS: The prognosis of hepatocellular carcinoma (HCC) patients treated with transcatheter arterial chemoembolization (TACE) is still poor. We aimed to evaluate the impact of TACE combined with radiofrequency ablation (TACE+RFA) on the prognosis of HCC patients using decision-tree analysis after propensity score matching. METHODS: This was a retrospective study. We enrolled 420 patients with HCC treated with TACE alone (n = 311) or TACE+RFA (n = 109) between 1998 and 2016 (median age, 72 years; male / female, 272/148; Barcelona Clinic Liver Cancer (BCLC) stage A / B, 215/205). The prognosis of patients who underwent TACE+RFA was compared to patients who underwent TACE alone after propensity score matching. Decision-tree analysis was used to investigate the profile for prognosis of the patients. RESULTS: After propensity score matching, there was no significant difference in age, sex, BCLC stage, or albumin-bilirubin (ALBI) score between both groups. The survival rate of the TACE+RFA group was significantly higher than the TACE alone group (median survival time [MST] 57.9 months vs. 33.1 months, P < 0.001). In a stratification analysis according to BCLC stage, the overall survival rate of the TACE+RFA group was significantly higher than the TACE alone group in BCLC stage A and B (MST 57.9 and 50.7 months vs. 39.8 and 24.5 months [P = 0.007 and 0.001], respectively). Decision-tree analysis showed that TACE+RFA was the third distinguishable factor for survival in patients with α-fetoprotein level >7 ng/mL and ALBI <-2.08. CONCLUSION: Decision-tree analysis after propensity score matching showed that TACE+RFA could prolong the survival of HCC patients compared to TACE alone.
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Liver cancer is one of the most common malignant tumors and prognosis remains poor. It has been increasingly recognized that liver cancer stem cells (LCSCs) are responsible for the carcinogenesis, recurrence, metastasis and chemoresistance of hepatocellular carcinoma (HCC). Targeting LCSCs is promising to be a new direction for the treatment of HCC. Herein, we summarize the potentially therapeutic targets in LCSCs at the level of genes, molecules and cells, such as knockout of oncogenes or oncoproteins, restoring the silent tumor suppressor genes, inhibition of the transcription factors and regulation of noncoding RNAs (including microRNAs and long noncoding RNAs) in LCSCs at the genetic level; inhibition of markers and blockade of the key signaling pathways of LCSCs at the molecular level; and inhibiting autophagy and application of oncolytic adenoviruses in LCSCs at the cellular level. Moreover, we analyze the potential targets in LCSCs to eliminate chemoresistance of HCC. Thereinto, the suppression of autophagy and Nanog by chloroquine and shRNA respectively may be the most promising targeting approaches. These targets may provide novel therapeutic strategies for the treatment of HCC by targeting LCSCs.
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Chronic hepatitis B virus (HBV) infection and HBV-related liver disease are estimated to affect about 240 million people worldwide. Now that a vaccine is available, the number of new HBV infection cases has plummeted. Yet, there are still regions with very high incidence of HBV. Hepatocellular carcinoma (HCC) is the fourth to six most common malignancy in men and the ninth most common malignancy in women worldwide. 54% of all HCC cases are HBV-associated, making it the most common cause of cancer worldwide. Hepatitis B therapy prevents progression of chronic hepatitis to cirrhosis and HCC development, but even with the best HBV treatment, such patients are still at risk of HCC. Also in patients after transarterial chemoembolization (TACE), liver resection (hepatectomy) or liver transplant, suppression of hepatitis B virus (HBV) improves patient survival. In this paper we present current possibilities of HCC and HBV treatment, which lead to improved survival and quality of life.
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BACKGROUND: Management of hepatocellular carcinoma (HCC) is framed within standardized protocols released by Scientific Societies, whose applicability and efficacy in field practice need refining. AIM: We evaluated the applicability and effectiveness of guidelines for the treatment of HCC of the American Association for the Study of the Liver (AASLD). METHODS: 370 consecutive cirrhotic patients with de novo HCC in different stages, 253 BCLC A, 66 BCLC B, 51 BCLC C received treatment through a multidisciplinary team (MDT) decision and were followed until death or end of follow-up. RESULTS: Treatment was adherent to AASLD recommendations in 205 (81%) BCLC A patients, 36 (54%) BCLC B, and 27 (53%) BCLC C. Radiological complete response was achieved in 165 (45%) patients after the first-line treatment, in 22 (19%) after a second-line and in 9 (23%) after a third-line treatment. Adherence to AASLD recommendation allowed a lower yearly mean mortality rate in BCLC A patients compared with other treatment (5.0% vs 10.4% P = .004), whereas upward treatment stage migration compared with the standard of care was associated with reduced yearly mortality in BCLC B (8.6% vs 20.7%, P = .029) and BCLC C (42.6% vs 59.0%, P = .04) patients. CONCLUSIONS: HCC multimodality treatment including other than first-line therapy is common in clinical practice and impact on the achievement of complete response. Personalized treatment was able to provide survival benefits to patients whose profile is not accounted for by international recommendations, which need to be amended.
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Carcinoma Hepatocelular/terapia , Adhesión a Directriz , Neoplasias Hepáticas/terapia , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma Hepatocelular/mortalidad , Terapia Combinada , Femenino , Hepatectomía , Humanos , Italia/epidemiología , Neoplasias Hepáticas/mortalidad , Trasplante de Hígado , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Guías de Práctica Clínica como Asunto , Análisis de SupervivenciaRESUMEN
BACKGROUND/AIM: To retrospectively evaluate the efficacy and safety of drug eluting bead (DEB) transarterial chemoembolisation (TACE) with microspheres <150 µm for the treatment of hepatocellular carcinoma (HCC) with respect to overall survival, progression-free survival, tumor response and the peri-interventional toxicity. MATERIALS AND METHODS: In this retrospective, single-center study we analyzed 32 HCC-patients (BCLC A: 10 patients, BCLC B: 17 patients, BCLC C: 5 patients), who were treated with (DEB) <15 µm (DCBeadM1®) loaded with epirubicin between 2011 and 2015. We analyzed MRI and CT-scans as well as blood results like AFP, bilirubin and liver enzymes before (t0) and after (t1=first follow-up, t2=last follow-up within 6 months) locoregional treatment. The tumor response was evaluated by MRI and CT considering m-RECIST and the EASL-criteria as well as alpha-fetoprotein (AFP) levels in the peripheral blood. RESULTS: We found a significant tumor response at all follow-up times (p<0.05) according to m-RECIST criteria and a significant tumor response between t0 vs. t1 (p<0.05) and t0 vs. t2 (p<0.05) according to EASL criteria. We observed a significant decrease of the AFP-level between t0 and t1. The objective response rates (ORR) of target lesions were 64.3% and 78.5 % corresponding to m-RECIST and EASL, respectively. The median overall survival (OS) was 30.5 months, the progression-free survival in relation to the target lesion was 14.3 months by using m-RECIST and EASL criteria. In the period of 30 days after treatment we found no grade 5 adverse events (AE). During the follow-up period 1 abscess (3.7%) was observed. In a total of 5 patients, 4 (14.7%) biliomas with no need of treatment and 3 (10.7%) widening of the intrahepatic bile ducts were noted. CONCLUSION: The use of DEB <150 µm (DCBeadM1®) shows promising results in the treatment of HCC without showing substantial hepatic toxicity, but some widening of the intrahepatic bile ducts and one abscess. Further trials are necessary to evaluate the efficacy and toxicity of DEB-TACE with M1®-beads.
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Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma Hepatocelular/terapia , Quimioembolización Terapéutica , Sistemas de Liberación de Medicamentos , Neoplasias Hepáticas/terapia , Microesferas , Carcinoma Hepatocelular/patología , Doxorrubicina/administración & dosificación , Epirrubicina/administración & dosificación , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Hepáticas/patología , Masculino , Pronóstico , Estudios Retrospectivos , Seguridad , Tasa de SupervivenciaRESUMEN
The European Association for the Study of the Liver Hepatocellular Carcinoma (HCC) international meeting held in Geneva in February 2017 focused on the state of the art of HCC management, from diagnosis to treatment and the potential development of clinical research in this field. This report reviews some of the most interesting topics discussed at the meeting such as the role of hepatitis C viral infection treatment with direct-acting antivirals in enhancing HCC risk, current prognostic systems, early diagnosis techniques, curative therapies for early HCC and the systemic treatments for advanced disease with a look into future perspectives.
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Antineoplásicos/uso terapéutico , Antivirales/uso terapéutico , Carcinoma Hepatocelular/terapia , Hepatitis C Crónica/tratamiento farmacológico , Neoplasias Hepáticas/terapia , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/virología , Ablación por Catéter/métodos , Ensayos Clínicos como Asunto , Terapia Combinada/métodos , Congresos como Asunto , Progresión de la Enfermedad , Hepacivirus/aislamiento & purificación , Hepacivirus/patogenicidad , Hepatitis C Crónica/virología , Humanos , Hígado/patología , Hígado/virología , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/virología , Estadificación de Neoplasias , Pronóstico , SuizaRESUMEN
Local tumor recurrence remains a major clinical problem following surgical treatment for most cancers such as hepatocellular carcinoma (HCC). An implantable local drug delivery system may be suitable for addressing this unmet clinical need. In this study, asymmetric multilayer polylactide nanofiber (AMPN) mats were prepared and a one-sided and prolonged release profile of hydrophilic dye or oxaliplatin was observed after they were sandwiched between two liver lobes in mice. Covering the surgery site by drug-loaded AMPN mat after tumor resection, in both subcutaneous and orthotopic HCC model in mice, the recurrence of HCC was significantly retarded and the survival time of mice was markedly prolonged. In conclusion, post-surgical therapy at tumor resection margins by drug-loaded AMPN mats may represent a suitable application of nanofiber-based local chemotherapy. FROM THE CLINICAL EDITOR: After cancer surgery, local recurrence remains a significant problem. In this study, the authors designed asymmetric multilayer PLA nanofiber (AMPN) mats and loaded them with anti-tumor drugs. Both in-vitro and in-vivo experiments showed good efficacy in preventing tumor recurrence. This novel product may point a way to the future and improve survival of cancer patients.
Asunto(s)
Antineoplásicos/administración & dosificación , Carcinoma Hepatocelular/prevención & control , Preparaciones de Acción Retardada/química , Neoplasias Hepáticas/prevención & control , Nanofibras/química , Recurrencia Local de Neoplasia/prevención & control , Poliésteres/química , Animales , Antineoplásicos/uso terapéutico , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/cirugía , Sistemas de Liberación de Medicamentos , Hígado/efectos de los fármacos , Hígado/patología , Hígado/cirugía , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/cirugía , Masculino , Ratones , Nanofibras/ultraestructura , Recurrencia Local de Neoplasia/patologíaRESUMEN
PURPOSE: Egyptian hepatocellular carcinoma (HCC) patients present at advanced stages. We aimed to study the influence of surveillance versus non-surveillance on HCC staging and the potential therapeutic options. METHODS: A retrospective study to evaluate the effect of surveillance on early detection of HCC among cirrhotic patients from 2003 to 2008. Patients examined every 6 months using ultrasound and α-fetoprotein (α-FP) (group A) and those diagnosed with those that present for the first time symptomatically or incidentally (group B). Groups were compared for α-FP level, tumour characteristics, severity of liver disease; tumour staging was evaluated by Okuda, CLIP and BCLC staging systems, in addition to the potential therapeutic options. RESULTS: Group A comprised 122 HCC cases and group B 473. Surveillance improved HCC detection: at the stage of single nodule in 62.3% in group A versus 52.2% in group B, (P = 0.046) and reduced the percentage of HCC with portal vein thrombosis in 16.4 versus 33.8%, (P = 0.000) and the percentage of α-FP >400 ng/ml in 19.5 versus 32.6%, (P = 0.006) in groups A and B, respectively. Surveillance doubled the detection of HCC at early stage of BCLC (25.4 vs. 11.9% P = 0.000) and doubled the patients' chance for loco-regional ablation (12.3 vs. 5.9%, P = 0.015) and liver transplantation (10.7 vs. 3.2%, P = 0.001) in groups A and B, respectively. CONCLUSION: HCC surveillance increases early detection of HCC and doubled the chances for curative options. Implementation of both HCC surveillance and cadaveric liver transplantation programs should be recommended in Egypt.