1
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Minko IG, Kellum AH, Stone MP, Lloyd RS. The aflatoxin B 1-induced imidazole ring-opened guanine adduct: High mutagenic potential that is minimally affected by sequence context. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2024; 65 Suppl 1:9-13. [PMID: 37303259 PMCID: PMC10711146 DOI: 10.1002/em.22556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/25/2023] [Accepted: 06/08/2023] [Indexed: 06/13/2023]
Abstract
Dietary exposure to aflatoxin B1 (AFB1) is a recognized risk factor for developing hepatocellular carcinoma. The mutational signature of AFB1 is characterized by high-frequency base substitutions, predominantly G>T transversions, in a limited subset of trinucleotide sequences. The 8,9-dihydro-8-(2,6-diamino-4-oxo-3,4-dihydropyrimid-5-yl-formamido)-9-hydroxyaflatoxin B1 (AFB1-FapyGua) has been implicated as the primary DNA lesion responsible for AFB1-induced mutations. This study evaluated the mutagenic potential of AFB1-FapyGua in four sequence contexts, including hot- and cold-spot sequences as apparent in the mutational signature. Vectors containing site-specific AFB1-FapyGua lesions were replicated in primate cells and the products of replication were isolated and sequenced. Consistent with the role of AFB1-FapyGua in AFB1-induced mutagenesis, AFB1-FapyGua was highly mutagenic in all four sequence contexts, causing G>T transversions and other base substitutions at frequencies of ~80%-90%. These data suggest that the unique mutational signature of AFB1 is not explained by sequence-dependent fidelity of replication past AFB1-FapyGua lesions.
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Affiliation(s)
- Irina G. Minko
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239
| | | | | | - R. Stephen Lloyd
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239
- Department of Molecular and Medical Genetics, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239
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2
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Soliman N, Saharia A, Abdelrahim M, Connor AA. Molecular profiling in the management of hepatocellular carcinoma. Curr Opin Organ Transplant 2024; 29:10-22. [PMID: 38038621 DOI: 10.1097/mot.0000000000001124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
PURPOSE OF REVIEW The purpose of this review is to both summarize the current knowledge of hepatocellular carcinoma molecular biology and to suggest a framework in which to prospectively translate this knowledge into patient care. This is timely as recent guidelines recommend increased use of these technologies to advance personalized liver cancer care. RECENT FINDINGS The main themes covered here address germline and somatic genetic alterations recently discovered in hepatocellular carcinoma, largely owing to next generation sequencing technologies, and nascent efforts to translate these into contemporary practice. SUMMARY Early efforts of translating molecular profiling to hepatocellular carcinoma care demonstrate a growing number of potentially actionable alterations. Still lacking are a consensus on what biomarkers and technologies to adopt, at what scale and cost, and how to integrate them most effectively into care.
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3
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Bruix J. A history of the treatment of primary liver cancer. Clin Liver Dis (Hoboken) 2024; 23:e0147. [PMID: 38707239 PMCID: PMC11068144 DOI: 10.1097/cld.0000000000000147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/23/2023] [Indexed: 05/07/2024] Open
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4
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Aasarey R, Yadav K, Kashyap BK, Prabha S, Kumar P, Kumar A, Ruokolainen J, Kesari KK. Role of Immunological Cells in Hepatocellular Carcinoma Disease and Associated Pathways. ACS Pharmacol Transl Sci 2023; 6:1801-1816. [PMID: 38093838 PMCID: PMC10714437 DOI: 10.1021/acsptsci.3c00216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 03/28/2024]
Abstract
Hepatocellular carcinoma (HCC) remains one of the predominant causes of cancer-related mortality across the globe. It is attributed to obesity, excessive alcohol consumption, smoking, and infection by the hepatitis virus. Early diagnosis of HCC is essential, and local treatments such as surgical excision and percutaneous ablation are effective. Palliative systemic therapy, primarily with the tyrosine kinase inhibitor Sorafenib, is used in advanced cases. However, the prognosis for advanced HCC remains poor. This Review additionally describes the pathophysiological mechanisms of HCC, which include aberrant molecular signaling, genomic instability, persistent inflammation, and the paradoxical position of the immune system in promoting and suppressing HCC. The paper concludes by discussing the growing body of research on the relationship between mitochondria and HCC, suggesting that mitochondrial dysfunction may contribute to the progression of HCC. This Review focuses on immunological interactions between different mechanisms of HCC progression, including obesity, viral infection, and alcohol consumption.
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Affiliation(s)
- Ram Aasarey
- Department
of Laboratory Medicine, All India Institute
of Medical Science, New Delhi-11029, India
| | - Kajal Yadav
- Department
of Biotechnology, All India Institute of
Medical Science, New Delhi-11029, India
| | - Brijendra Kumar Kashyap
- Department
of Biotechnology Engineering, Institute of Engineering and Technology, Bundelkhand University, Jhansi-284128, Uttar Pradesh, India
| | - Sarit Prabha
- Department
of Biological Science and Engineering, Maulana
Azad National Institute of Technology, Bhopal-462003, Madhya Pradesh,India
| | - Pramod Kumar
- Indian
Council of Medical Research, National Institute
of Cancer Prevention and Research (NICPR), l-7, Sector-39, Noida-201301, National Capital Region, India
| | - Anil Kumar
- Department
of Life Sciences, School of Natural Sciences, Central University of Jharkhand, Cheri-Manatu, Karmre, Kanke-835222, Ranchi, India
| | - Janne Ruokolainen
- Department
of Applied Physics, School of Science, Aalto
University, FI-00076 Espoo, Finland
| | - Kavindra Kumar Kesari
- Department
of Applied Physics, School of Science, Aalto
University, FI-00076 Espoo, Finland
- Research
and Development Cell, Lovely Professional
University, Phagwara-144411, Punjab, India
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5
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Wu Y, Adeel MM, Sancar A, Li W. Nucleotide Excision Repair of Aflatoxin-induced DNA Damage within the 3D Human Genome Organization. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.27.559858. [PMID: 37808841 PMCID: PMC10557652 DOI: 10.1101/2023.09.27.559858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Aflatoxin B1 (AFB1), a potent mycotoxin, is one of the two primary risk factors that cause liver cancer. In the liver, the bioactivated AFB1 intercalates into the DNA double helix to form a bulky DNA adduct which will lead to mutation if left unrepaired. We have adapted the tXR-seq method to measure the nucleotide excision repair of AFB1-induced DNA adducts. We have found that transcription-coupled repair plays a major role in the damage removal process and the released excision products have a distinctive length distribution pattern. We further analyzed the impact of 3D genome organization on the repair of AFB1-induced DNA adducts. We have revealed that chromosomes close to the nuclear center and A compartments undergo expedited repair processes. Notably, we observed an accelerated repair around both TAD boundaries and loop anchors. These findings provide insights into the complex interplay between repair, transcription, and 3D genome organization, shedding light on the mechanisms underlying AFB1-induced liver cancer.
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Affiliation(s)
- Yiran Wu
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA 30602
| | - Muhammad Muzammal Adeel
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA 30602
| | - Aziz Sancar
- Department of Biochemistry and Biophysics, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599
| | - Wentao Li
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA 30602
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6
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Choi JH, Thung SN. Advances in Histological and Molecular Classification of Hepatocellular Carcinoma. Biomedicines 2023; 11:2582. [PMID: 37761023 PMCID: PMC10526317 DOI: 10.3390/biomedicines11092582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a primary liver cancer characterized by hepatocellular differentiation. HCC is molecularly heterogeneous with a wide spectrum of histopathology. The prognosis of patients with HCC is generally poor, especially in those with advanced stages. HCC remains a diagnostic challenge for pathologists because of its morphological and phenotypic diversity. However, recent advances have enhanced our understanding of the molecular genetics and histological subtypes of HCC. Accurate diagnosis of HCC is important for patient management and prognosis. This review provides an update on HCC pathology, focusing on molecular genetics, histological subtypes, and diagnostic approaches.
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Affiliation(s)
- Joon Hyuk Choi
- Department of Pathology, Yeungnam University College of Medicine, Daegu 42415, Republic of Korea
| | - Swan N. Thung
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY 10029, USA;
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7
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Wang Y, Deng B. Hepatocellular carcinoma: molecular mechanism, targeted therapy, and biomarkers. Cancer Metastasis Rev 2023; 42:629-652. [PMID: 36729264 DOI: 10.1007/s10555-023-10084-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 01/16/2023] [Indexed: 02/03/2023]
Abstract
Hepatocellular carcinoma (HCC) is a common malignancy and one of the leading causes of cancer-related death. The biological process of HCC is complex, with multiple factors leading to the broken of the balance of inactivation and activation of tumor suppressor genes and oncogenes, the abnormal activation of molecular signaling pathways, the differentiation of HCC cells, and the regulation of angiogenesis. Due to the insidious onset of HCC, at the time of first diagnosis, less than 30% of HCC patients are candidates for radical treatment. Systematic antitumor therapy is the hope for the treatment of patients with middle-advanced HCC. Despite the emergence of new systemic therapies, survival rates for advanced HCC patients remain low. The complex pathogenesis of HCC has inspired researchers to explore a variety of biomolecular targeted therapeutics targeting specific targets. Correct understanding of the molecular mechanism of HCC occurrence is key to seeking effective targeted therapy. Research on biomarkers for HCC treatment is also advancing. Here, we explore the molecular mechanism that are associated with HCC development, summarize targeted therapies for HCC, and discuss potential biomarkers that may drive therapies.
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Affiliation(s)
- Yu Wang
- Department of Infectious Diseases, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, Liaoning Province, China
| | - Baocheng Deng
- Department of Infectious Diseases, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110001, Liaoning Province, China.
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8
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Zuckerman JT, Minko IG, Kant M, Jaruga P, Stone MP, Dizdaroglu M, McCullough AK, Lloyd RS. Functional analyses of single nucleotide polymorphic variants of the DNA glycosylase NEIL1 in sub-Saharan African populations. DNA Repair (Amst) 2023; 129:103544. [PMID: 37517321 PMCID: PMC10546947 DOI: 10.1016/j.dnarep.2023.103544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 08/01/2023]
Abstract
Nei-like glycosylase 1 (NEIL1) is a DNA repair enzyme that initiates the base excision repair (BER) pathway to cleanse the human genome of damage. The substrate specificity of NEIL1 includes several common base modifications formed under oxidative stress conditions, as well as the imidazole ring open adducts that are induced by alkylating agents following initial modification at N7 guanine. An example of the latter is the persistent and mutagenic 8,9-dihydro-8-(2,6-diamino-4-oxo-3,4-dihydropyrimid-5-yl-formamido)-9-hydroxyaflatoxin B1 (AFB1-FapyGua) adduct, resulting from the alkylating agent aflatoxin B1 (AFB1) exo-8-9-epoxide. Naturally occurring single nucleotide polymorphic (SNP) variants of NEIL1 are hypothesized to be associated with an increased risk for development of early-onset hepatocellular carcinoma (HCC), especially in environments with high exposures to aflatoxins and chronic inflammation from viral infections and alcohol consumption. Given that AFB1 exposures and hepatitis B viral (HBV) infections represent a major problem in the developing countries of sub-Saharan Africa, it is pertinent to study SNP NEIL1 variants that are present in this geographic region. In this investigation, we characterized the three most common NEIL1 variants found in this region: P321A, R323G, and I182M. Biochemical analyses were conducted to determine the proficiencies of these variants in initiating the repair of DNA lesions. Our data show that damage recognition and excision activities of P321A and R323G were near that of wild-type (WT) NEIL1 for both thymine glycol (ThyGly) and AFB1-FapyGua. The substrate specificities of these variants with respect to various oxidatively-induced base lesions were also similar to that of WT. In contrast, the I182M variant was unstable, such that it precipitated under a variety of conditions and underwent rapid inactivation at a biologically relevant temperature, with partial stabilization being observed in the presence of undamaged DNA. This study provides insight regarding the potential increased risk for early-onset HCC in human populations carrying the NEIL1 I182M variant.
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Affiliation(s)
- Jamie T Zuckerman
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States
| | - Irina G Minko
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States
| | - Melis Kant
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States
| | - Pawel Jaruga
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States
| | - Michael P Stone
- Department of Chemistry, Vanderbilt University, Nashville, TN 37240, United States
| | - Miral Dizdaroglu
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States
| | - Amanda K McCullough
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States; Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR 97239, United States
| | - R Stephen Lloyd
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States; Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR 97239, United States.
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9
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Goidescu IG, Nemeti G, Surcel M, Caracostea G, Florian AR, Cruciat G, Staicu A, Muresan D, Goidescu C, Pintican R, Eniu DT. Spectrum of High-Risk Mutations among Breast Cancer Patients Referred for Multigene Panel Testing in a Romanian Population. Cancers (Basel) 2023; 15:cancers15061895. [PMID: 36980780 PMCID: PMC10047778 DOI: 10.3390/cancers15061895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
(1) Background: Multigene panel testing for Hereditary Breast and Ovarian Cancer (HBOC) using next generation sequencing (NGS) is becoming a standard in medical care. There are insufficient genetic studies reported on breast cancer (BC) patients from Romania and most of them are focused only on BRCA 1/2 genes (Breast cancer 1/2). (2) Methods: NGS was performed in 255 consecutive cases of BC referred for management in our clinic between 2015-2019. (3) Results: From the 171 mutations identified, 85 were in the high-penetrance BC susceptibility genes category, 72 were pathogenic genes, and 13 genes were in the (variants of uncertain significance) VUS genes category. Almost half of the mutations were in the BRCA 1 gene. The most frequent BRCA1 variant was c.3607C>T (14 cases), followed by c.5266dupC (11 cases). Regarding BRCA-2 mutations we identified c.9371A>T (nine cases), followed by c.8755-1G>A in three cases, and we diagnosed VUS mutations in three cases. We also identified six pathogenic variants in the PALB2 gene and two pathogenic variants in (tumor protein P 53) TP53. (4) Conclusions: The majority of pathogenic mutations in the Romanian population with BC were in the BRCA 1/ 2 genes, followed by PALB2 (partner and localizer of BRCA2) and TP53, while in the CDH1 (cadherin 1) and STK11 (Serine/Threonine-Protein Kinase) genes we only identified VUS mutations.
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Affiliation(s)
- Iulian Gabriel Goidescu
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Georgiana Nemeti
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Mihai Surcel
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Gabriela Caracostea
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Andreea Roxana Florian
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Gheorghe Cruciat
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Adelina Staicu
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Daniel Muresan
- Obstetrics and Gynecology I, Mother and Child Department, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Cerasela Goidescu
- Department of Internal Medicine, Medical Clinic I-Internal Medicine, Cardiology and Gastroenterology, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
| | - Roxana Pintican
- Department of Radiology, Iuliu Hatieganu University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania
| | - Dan Tudor Eniu
- Department of Surgery 2, University Emergency Hospital, University of Medicine and Pharmacy "Iuliu Hatieganu", 400006 Cluj-Napoca, Romania
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10
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Zhao Y, Han X, Zhang N, Meng J, Zhang H, Liang J. Removal of Aflatoxin B 1 and Zearalenone in Mixed Aqueous Solution by Palygorskite-Montmorillonite Materials In Situ Prepared from Palygorskite Mineral. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2797-2807. [PMID: 36763007 DOI: 10.1021/acs.langmuir.2c03289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In view of the animal feeds inevitably contaminated by multiple mycotoxins, eco-friendly and efficient palygorskite-montmorillonite (Pal-Mt) materials were prepared to remove polar aflatoxin B1 (AFB1) and weak polar zearalenone (ZEN) from mixed mycotoxins aqueous solution. The adsorption properties and bonding mechanisms between Pal-Mt materials and mycotoxins (AFB1 and ZEN) were investigated systematically. The as-prepared Pal-Mt showed excellent adsorption capacity for AFB1 and ZEN in single- and binary-mycotoxin systems, indicating the effectiveness of Pal-Mt acting as multiple mycotoxin adsorbents. The kinetics of adsorption for ZEN was fast due to the adsorption on the external surface (film and intraparticle diffusion), while AFB1 molecules permeated into mesopores after the external adsorption for the more planar structure. Adsorption isotherms demonstrated that heterogeneous surface adsorption appeared between Pal-Mt and AFB1, and monolayer adsorption occurred on Pal-Mt and ZEN for different polarities of mycotoxins. Thermodynamic parameters illustrated that the adsorption process of both AFB1 and ZEN onto Pal-Mt was spontaneous and endothermic. The adsorption mechanism studies suggested that hydrogen bonding, electrostatic attraction, calcium bridging linkage, and ion-dipole played fundamental roles in the interaction between Pal-Mt and these two mycotoxins.
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Affiliation(s)
- Yan Zhao
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Xiaoyu Han
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Na Zhang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Junping Meng
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Hong Zhang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Jinsheng Liang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, People's Republic of China
- Institute of Power Source and Ecomaterials Science, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China
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Campani C, Zucman-Rossi J, Nault JC. Genetics of Hepatocellular Carcinoma: From Tumor to Circulating DNA. Cancers (Basel) 2023; 15:cancers15030817. [PMID: 36765775 PMCID: PMC9913369 DOI: 10.3390/cancers15030817] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 02/01/2023] Open
Abstract
Hepatocellular carcinoma (HCC) accounts for 90% of primary hepatic malignancies and is one of the major causes of cancer-related death. Over the last 15 years, the molecular landscape of HCC has been deciphered, with the identification of the main driver genes of liver carcinogenesis that belong to six major biological pathways, such as telomere maintenance, Wnt/b-catenin, P53/cell cycle regulation, oxidative stress, epigenetic modifiers, AKT/mTOR and MAP kinase. The combination of genetic and transcriptomic data composed various HCC subclasses strongly related to risk factors, pathological features and prognosis. However, translation into clinical practice is not achieved, mainly because the most frequently mutated genes are undruggable. Moreover, the results derived from the analysis of a single tissue sample may not adequately catch the intra- and intertumor heterogeneity. The analysis of circulating tumor DNA (ctDNA) is broadly developed in other types of cancer for early diagnosis, prognosis and monitoring under systemic treatment in order to identify primary and secondary mechanisms of resistance. The aim of this review is to describe recent data about the HCC molecular landscape and to discuss how ctDNA could be used in the future for HCC detection and management.
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Affiliation(s)
- Claudia Campani
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université de Paris Cité, Team «Functional Genomics of Solid Tumors», 75006 Paris, France
- Equipe labellisée Ligue Nationale Contre le Cancer, Labex OncoImmunology, 75006 Paris, France
- Internal Medicine and Hepatology Unit, Department of Experimental and Clinical Medicine, University of Firenze, 50134 Firenze, Italy
| | - Jessica Zucman-Rossi
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université de Paris Cité, Team «Functional Genomics of Solid Tumors», 75006 Paris, France
- Equipe labellisée Ligue Nationale Contre le Cancer, Labex OncoImmunology, 75006 Paris, France
- Hôpital Européen Georges Pompidou, APHP, 75015 Paris, France
| | - Jean-Charles Nault
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, Université de Paris Cité, Team «Functional Genomics of Solid Tumors», 75006 Paris, France
- Equipe labellisée Ligue Nationale Contre le Cancer, Labex OncoImmunology, 75006 Paris, France
- Liver Unit, Hôpital Avicenne, Hôpitaux Universitaires Paris-Seine-Saint-Denis, Assistance-Publique Hôpitaux de Paris, 93000 Bobigny, France
- Unité de Formation et de Recherche Santé Médecine et Biologie Humaine, Université Paris Nord, 93000 Bobigny, France
- Correspondence: ; Tel.: +33-6-1067-9461
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The High Expression of p53 Is Predictive of Poor Survival Rather TP53 Mutation in Esophageal Squamous Cell Carcinoma. JOURNAL OF ONCOLOGY 2023; 2023:3801526. [PMID: 36660245 PMCID: PMC9845043 DOI: 10.1155/2023/3801526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 01/11/2023]
Abstract
TP53 is a well-known tumor suppressor gene and one of the most common genetic alterations in human cancers. However, the role of p53 as a prognostic marker of esophageal squamous cell carcinoma (ESCC) is controversial in the association between TP53 alterations and clinical outcomes. To address this issue, we evaluated TP53 mutations, p53 protein expression, clinicopathological parameters, and survivals rates in a large scale of patients with ESCC. Two cohorts were included in this study: TP53 mutations were detected by next-generation sequencing in 316 ESCC patients, and p53 protein expression was tested by immunohistochemistry in 6,028 ESCC patients. Survival analysis was performed using the Kaplan-Meier curve and the Cox proportional hazards model. TP53 mutations were found in ESCC patients from 241 of 316 (76.3%), and the rate of positive expression of p53 protein was 59.1% in 6,028 ESCC patients (including 1819 with high expression of p53 protein), respectively. Most mutations were missense, which has a high expression of p53 protein. Compared with wild-typeTP53, TP53 gene mutations were not significantly associated with survival time (p=0.083). In multivariate analysis, the p53 protein expression was an independent prognostic factor for ESCC. The high-expression group of p53 protein has poor survival (p < 0.001) compared to low-expression group in patients with ESCC. The high expression of the p53 protein, not the TP53 mutation, is predictive of poor survival in patients with ESCC, and p53 protein expression might have the potential to be a prognosis biomarker and therapy target in ESCC.
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13
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Abstract
In recent years, it has become clear that gut microbiota plays a major role in the human body, both in health and disease. Because of that, the gut microbiome and its impact on human well-being are getting wider and wider attention. Studies focused on the liver are not an exception. However, the majority of the analyses are concentrated on the bacterial part of the gut microbiota, while the fungi living in the human intestines are often omitted or underappreciated. This review is focused on the gut mycobiome as an important factor that should be taken into consideration regarding liver homeostasis and its perturbations. We have collected the findings in this field and we discuss their importance. We aim to emphasize the fungal compositional changes related to liver diseases and, by that, provide novel insights into the directions of liver research and gut microbiota as a therapeutic target for liver diseases.
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Affiliation(s)
- Natalia Szóstak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | - Marek Figlerowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | - Anna Philips
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
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Mahata PK, Dass RS, Gunti L, Thorat PA. First report on the metabolic characterization of Sterigmatocystin production by select Aspergillus species from the Nidulantes section in Foeniculum vulgare. Front Microbiol 2022; 13:958424. [PMID: 36090109 PMCID: PMC9459157 DOI: 10.3389/fmicb.2022.958424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/03/2022] [Indexed: 12/16/2022] Open
Abstract
Spices are typically grown in climates that support the growth of toxigenic fungi and the production of mycotoxins. The Aspergilli described in this study, as well as the sterigmatocystin (STC) detected, are causes for concern due to their potential to induce food poisoning. One of the most well-known producers of the carcinogenic STC is Aspergillus nidulans. This research explores the occurrence of STC-producing fungi in Foeniculum vulgare, a spice that is marketed in India and other parts of the world. This innovative study details the mycotoxigenic potential of five Aspergilli belonging to Section Nidulantes, namely Aspergillus latus (02 isolates), Emericella quadrilineata (02 isolates), and Aspergillus nidulans (01 isolate), with respect to STC contamination. These five isolates of Aspergilli were screened to produce STC on yeast extract sucrose (YES) medium in a controlled environment with regard to light, temperature, pH, and humidity, among other variables. The expression patterns of regulatory genes, namely, aflR, laeA, pacC, fluG, flbA, pksA, and mtfA were studied on the Czapek–Dox agar (CDA) medium. STC biosynthesis by the test isolates was done in potato dextrose broth (PDB) under optimum conditions, followed by the extraction and purification of the broth using ethyl acetate. High-performance liquid chromatography (HPLC) with an ultraviolet (UV) detector was utilized to detect compounds in eluted samples. F. vulgare contains Aspergilli that have been shown to have mycotoxigenic potential, which can accumulate in the spice during its active growth and thereby cause the elaboration of mycotoxins.
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15
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Maloberti T, De Leo A, Sanza V, Gruppioni E, Altimari A, Riefolo M, Visani M, Malvi D, D’Errico A, Tallini G, Vasuri F, de Biase D. Correlation of molecular alterations with pathological features in hepatocellular carcinoma: Literature review and experience of an Italian center. World J Gastroenterol 2022; 28:2854-2866. [PMID: 35978866 PMCID: PMC9280731 DOI: 10.3748/wjg.v28.i25.2854] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/23/2022] [Accepted: 05/28/2022] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) represents the primary carcinoma of the liver and the fourth leading cause of cancer-related deaths. The World Health Organization estimates an increase in cases in the coming years. The risk factors of HCC are multiple, and the incidence in different countries is closely related to the different risk factors to which the population is exposed. The molecular mechanisms that drive HCC tumorigenesis are extremely complex, but understanding this multistep process is essential for the identification of diagnostic, prognostic, and therapeutic markers. The development of multigenic next-generation sequencing panels through the parallel analysis of multiple markers can provide a landscape of the genomic status of the tumor. Considering the literature and our preliminary data based on 36 HCCs, the most frequently altered genes in HCCs are TERT, CTNNB1, and TP53. Over the years, many groups have attempted to classify HCCs on a molecular basis, but a univocal classification has never been achieved. Nevertheless, statistically significant correlations have been found in HCCs between the molecular signature and morphologic features, and this leads us to think that it would be desirable to integrate the approach between anatomic pathology and molecular laboratories.
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Affiliation(s)
- Thais Maloberti
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna 40138, Italy
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Antonio De Leo
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna 40138, Italy
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Viviana Sanza
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Elisa Gruppioni
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Annalisa Altimari
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Mattia Riefolo
- Department of Pathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Michela Visani
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna 40138, Italy
| | - Deborah Malvi
- Department of Pathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Antonia D’Errico
- Department of Pathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Giovanni Tallini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna 40138, Italy
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Francesco Vasuri
- Department of Pathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Dario de Biase
- Department of Pharmacy and biotechnology (FaBiT), University of Bologna, Bologna 40138, Italy
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16
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Cucarull B, Tutusaus A, Rider P, Hernáez-Alsina T, Cuño C, García de Frutos P, Colell A, Marí M, Morales A. Hepatocellular Carcinoma: Molecular Pathogenesis and Therapeutic Advances. Cancers (Basel) 2022; 14:cancers14030621. [PMID: 35158892 PMCID: PMC8833604 DOI: 10.3390/cancers14030621] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/18/2022] [Accepted: 01/22/2022] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC), the most common form of liver cancer, continues to be a serious medical problem with poor prognosis, without major therapeutic improvement for years and increasing incidence. Fortunately, advances in systemic treatment options are finally arriving for HCC patients. After a decade of sorafenib as a standard therapy for advanced HCC, several tyrosine kinase inhibitors (TKIs), antiangiogenic antibodies, and immune checkpoint inhibitors have reached the clinic. Although infections by hepatitis B virus and hepatitis C virus remain principal factors for HCC development, the rise of non- alcoholic steatohepatitis from diabetes mellitus or metabolic syndrome is impeding HCC decline. Knowledge of specific molecular mechanisms, based on the etiology and the HCC microenvironment that influence tumor growth and immune control, will be crucial for physician decision-making among a variety of drugs to prescribe. In addition, markers of treatment efficacy are needed to speed the movement of patients towards other potentially effective treatments. Consequently, research to provide scientific data for the evidence-based management of liver cancer is guaranteed in the coming years and discussed here.
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Affiliation(s)
- Blanca Cucarull
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
| | - Anna Tutusaus
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
| | - Patricia Rider
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
| | | | - Carlos Cuño
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
| | - Pablo García de Frutos
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
- Unidad Asociada (IMIM), IIBB-CSIC, CIBERCV, IDIBAPS, 08036 Barcelona, Spain
| | - Anna Colell
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
- Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 08036 Barcelona, Spain
| | - Montserrat Marí
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
- Correspondence: (M.M.); (A.M.); Tel.: +34-932558314 (M.M. & A.M.)
| | - Albert Morales
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain; (B.C.); (A.T.); (P.R.); (C.C.); (P.G.d.F.); (A.C.)
- Barcelona Clinic Liver Cancer Group, Liver Unit, Hospital Clínic of Barcelona, University of Barcelona, CIBEREHD, IDIBAPS, 08036 Barcelona, Spain
- Correspondence: (M.M.); (A.M.); Tel.: +34-932558314 (M.M. & A.M.)
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17
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Xu J, Xiao X, Yan B, Yuan Q, Dong X, Du Q, Zhang J, Shan L, Ding Z, Zhou L, Efferth T. Green tea-derived theabrownin induces cellular senescence and apoptosis of hepatocellular carcinoma through p53 signaling activation and bypassed JNK signaling suppression. Cancer Cell Int 2022; 22:39. [PMID: 35078476 PMCID: PMC8788116 DOI: 10.1186/s12935-022-02468-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/13/2022] [Indexed: 01/07/2023] Open
Abstract
Abstract
Background
Theabrownin (TB) is a bioactive component of tea and has been reported to exert effects against many human cancers, but its efficacy and mechanism on hepatocellular carcinoma (HCC) with different p53 genotypes remains unclarified.
Methods
MTT assay, DAPI staining, flow cytometry and SA-β-gal staining were applied to evaluate the effects of TB on HCC cells. Quantitative real time PCR (qPCR) and Western blot (WB) were conducted to explore the molecular mechanism of TB. A xenograft model of zebrafish was established to evaluate the anti-tumor effect of TB.
Results
MTT assays showed that TB significantly inhibited the proliferation of SK-Hep-1, HepG2, and Huh7 cells in a dose-dependent manner, of which SK-Hep-1 was the most sensitive one with the lowest IC50 values. The animal data showed that TB remarkably suppressed SK-Hep-1 tumor growth in xenograft model of zebrafish. The cellular data showed TB's pro-apoptotic and pro-senescent effect on SK-Hep-1 cells. The molecular results revealed the mechanism of TB that p53 signaling pathway (p-ATM, p-ATR, γ-H2AX, p-Chk2, and p-p53) was activated with up-regulation of downstream senescent genes (P16, P21, IL-6 and IL-8) as well as apoptotic genes (Bim, Bax and PUMA) and proteins (Bax, c-Casp9 and c-PARP). The p53-mediated mechanism was verified by using p53-siRNA. Moreover, by using JNK-siRNA, we found JNK as a bypass regulator in TB's mechanism.
Conclusions
To sum up, TB exerted tumor-inhibitory, pro-senescent and pro-apoptotic effects on SK-Hep-1 cells through ATM-Chk2-p53 signaling axis in accompany with JNK bypass regulation. This is the first report on the pro-senescent effect and multi-target (p53 and JNK) mechanism of TB on HCC cells, providing new insights into the underlying mechanisms of TB's anti-HCC efficacy.
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18
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Pujari SS, Jokipii Krueger CC, Chao C, Hutchins S, Hurben AK, Boysen G, Tretyakova N. DEB-FAPy-dG Adducts of 1,3-Butadiene: Synthesis, Structural Characterization, and Formation in 1,2,3,4-Diepoxybutane Treated DNA. Chemistry 2022; 28:e202103245. [PMID: 34767297 PMCID: PMC10603587 DOI: 10.1002/chem.202103245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Indexed: 11/10/2022]
Abstract
Metabolic activation of the human carcinogen 1,3-butadiene (BD) by cytochrome 450 monooxygenases gives rise to a genotoxic diepoxide, 1,2,3,4-diepoxybutane (DEB). This reactive electrophile alkylates guanine bases in DNA to produce N7-(2-hydroxy-3,4-epoxy-1-yl)-dG (N7-DE-dG) adducts. Because of the positive charge at the N7 position of the purine heterocycle, N7-DEB-dG adducts are inherently unstable and can undergo spontaneous depurination or base-catalyzed imidazole ring opening to give N6 -[2-deoxy-D-erythro-pentofuranosyl]-2,6-diamino-3,4-dihydro-4-oxo-5-N-1-(oxiran-2-yl)propan-1-ol-formamidopyrimidine (DEB-FAPy-dG) adducts. Here we report the first synthesis and structural characterization of DEB-FAPy-dG adducts. Authentic standards of DEB-FAPy-dG and its 15 N3 -labeled analogue were used for the development of a quantitative nanoLC-ESI+ -HRMS/MS method, allowing for adduct detection in DEB-treated calf thymus DNA. DEB-FAPy-dG formation in DNA was dependent on DEB concentration and pH, with higher numbers observed under alkaline conditions.
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Affiliation(s)
- Suresh S Pujari
- Department of Medicinal Chemistry, College of Pharmacy, Cancer and Cardiovascular Research Building, University of Minnesota, 2231 6th Street SE, Minneapolis, MN, 55455, USA
| | - Caitlin C Jokipii Krueger
- Department of Medicinal Chemistry, College of Pharmacy, Cancer and Cardiovascular Research Building, University of Minnesota, 2231 6th Street SE, Minneapolis, MN, 55455, USA
| | - Christopher Chao
- Department of Medicinal Chemistry, College of Pharmacy, Cancer and Cardiovascular Research Building, University of Minnesota, 2231 6th Street SE, Minneapolis, MN, 55455, USA
| | - Spencer Hutchins
- Department of Medicinal Chemistry, College of Pharmacy, Cancer and Cardiovascular Research Building, University of Minnesota, 2231 6th Street SE, Minneapolis, MN, 55455, USA
| | - Alexander K Hurben
- Department of Medicinal Chemistry, College of Pharmacy, Cancer and Cardiovascular Research Building, University of Minnesota, 2231 6th Street SE, Minneapolis, MN, 55455, USA
| | - Gunnar Boysen
- Department of Environmental and Occupational Health and the Winthrop P Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, 4301 West Markham St., Slot 820, Little Rock, AR, 72205, USA
| | - Natalia Tretyakova
- Department of Medicinal Chemistry, College of Pharmacy, Cancer and Cardiovascular Research Building, University of Minnesota, 2231 6th Street SE, Minneapolis, MN, 55455, USA
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19
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Cao W, Yu P, Yang K, Cao D. Aflatoxin B1: metabolism, toxicology, and its involvement in oxidative stress and cancer development. Toxicol Mech Methods 2021; 32:395-419. [PMID: 34930097 DOI: 10.1080/15376516.2021.2021339] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Aflatoxins are a class of carcinogenic mycotoxins produced by Aspergillus fungi, which are widely distributed in nature. Aflatoxin B1 (AFB1) is the most toxic of these compounds and its metabolites have a variety of biological activities, including acute toxicity, teratogenicity, mutagenicity and carcinogenicity, which has been well-characterized to lead to the development of hepatocellular carcinoma (HCC) in humans and animals. This review focuses on the metabolism of AFB1, including epoxidation and DNA adduction, as it concerns the initiation of cancer and the underlying mechanisms. In addition to DNA adduction, inflammation and oxidative stress caused by AFB1 can also participate in the occurrence of cancer. Therefore, the main carcinogenic mechanism of AFB1 related ROS is summarized. This review also describes recent reports of AFB1 exposures in occupational settings. It is hoped that people will pay more attention to occupational health, in order to reduce the incidence of cancer caused by occupational exposure.
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Affiliation(s)
- Weiya Cao
- Medical school, Anhui University of Science & Technology, Huainan 232001, China
| | - Pan Yu
- Medical school, Anhui University of Science & Technology, Huainan 232001, China
| | - KePeng Yang
- Medical school, Anhui University of Science & Technology, Huainan 232001, China
| | - Dongli Cao
- Medical school, Anhui University of Science & Technology, Huainan 232001, China
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20
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Schmidt MA, Mao Y, Opoku J, Mehl HL. Enzymatic degradation is an effective means to reduce aflatoxin contamination in maize. BMC Biotechnol 2021; 21:70. [PMID: 34920704 PMCID: PMC8684248 DOI: 10.1186/s12896-021-00730-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/30/2021] [Indexed: 12/25/2022] Open
Abstract
Background Aflatoxins are carcinogenic compounds produced by certain species of Aspergillus fungi. The consumption of crops contaminated with this toxin cause serious detrimental health effects, including death, in both livestock and humans. As a consequence, both the detection and quantification of this toxin in food/feed items is tightly regulated with crops exceeding the allowed limits eliminated from food chains. Globally, this toxin causes massive agricultural and economic losses each year. Results In this paper we investigate the feasibility of using an aflatoxin-degrading enzyme strategy to reduce/eliminate aflatoxin loads in developing maize kernels. We used an endoplasmic reticulum (ER) targeted sub-cellular compartmentalization stabilizing strategy to accumulate an aflatoxin-degrading enzyme isolated from the edible Honey mushroom Armillariella tabescens and expressed it in embryo tissue in developing maize kernels. Three transgenic maize lines that were determined to be expressing the aflatoxin-degrading enzyme both at the RNA and protein level, were challenged with the aflatoxin-producing strain Aspergillus flavus AF13 and shown to accumulate non-detectable levels of aflatoxin at 14-days post-infection and significantly reduced levels of aflatoxin at 30-days post-infection compared to nontransgenic control Aspergillus-challenged samples. Conclusions The expression of an aflatoxin-degrading enzyme in developing maize kernels was shown to be an effective means to control aflatoxin in maize in pre-harvest conditions. This aflatoxin-degradation strategy could play a significant role in the enhancement of both US and global food security and sustainability. Supplementary Information The online version contains supplementary material available at 10.1186/s12896-021-00730-6.
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Affiliation(s)
- Monica A Schmidt
- BIO5 Institute, University of Arizona, 1657 E. Helen St, Tucson, AZ, 85718, USA.
| | - Yizhou Mao
- BIO5 Institute, University of Arizona, 1657 E. Helen St, Tucson, AZ, 85718, USA
| | - Joseph Opoku
- Arid Land Agricultural Research Center, USDA Agricultural Research Service, 416 W Congress St, Tucson, AZ, 85701, USA
| | - Hillary L Mehl
- Arid Land Agricultural Research Center, USDA Agricultural Research Service, 416 W Congress St, Tucson, AZ, 85701, USA
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21
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Hu G, Gao F, Wang G, Fang Y, Guo Y, Zhou J, Gu Y, Zhang C, Gao N, Wen Q, Qiao H. Use of proteomics to identify mechanisms of hepatocellular carcinoma with the CYP2D6*10 polymorphism and identification of ANGPTL6 as a new diagnostic and prognostic biomarker. J Transl Med 2021; 19:359. [PMID: 34412629 PMCID: PMC8375140 DOI: 10.1186/s12967-021-03038-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/10/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Although an association between the cytochrome P4502D6 (CYP2D6) *10 (100C>T) polymorphism and hepatocellular carcinoma (HCC) is known, the mechanism remains unclear. Here we aimed to explore mechanisms of CYP2D6*10 (100C>T) polymorphism conferring to HCC, and screen markers for HCC. METHODS Label-free global proteome profiling with 34 normal livers and peritumor tissue from 61 HCC patients was performed, and angiopoietin-like protein-6 (ANGPTL6) was evaluated in 2 liver samples validation cohorts and 2 blood specimens validation cohorts. RESULTS We found a significantly decreased frequency of TT in HCC patients which reduced HCC susceptibility by 69.2% and was accompanied by lowered enzymatic activity for CYP2D6. Proteomic analysis revealed 1342 differentially expressed proteins (DEPs) that were associated with HCC and 88 DEPs were identified as 100 TT-related proteins, likely underlying the susceptibility to HCC. Twenty-two upregulated DEPs and 66 downregulated DEPs were mainly related to lipid metabolism and the extracellular matrix, respectively. High ANGPTL6 was associated with a higher risk to HCC and worse prognosis. ANGPTL6 was both an independent risk factor and an independent prognostic factor for HCC and exhibited strong potential for predicting HCC occurrence, with comparable AUC values and higher sensitivity compared with alpha-fetoprotein. CONCLUSIONS The TT genotype-associated decreased risk of HCC appears to be related to lowered CYP2D6 activity and altered protein expression in the tumor microenvironment, and ANGPTL6 is a promising new diagnostic and prognostic biomarker for HCC. Our findings reveal new mechanistic insights for polymorphisms related to HCC risk and provide avenues for screening for HCC.
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Affiliation(s)
- Guiming Hu
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Fei Gao
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Guanzhe Wang
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yan Fang
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yuanyuan Guo
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Jun Zhou
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China.,Affiliated People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuhan Gu
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Cunzhen Zhang
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Na Gao
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Qiang Wen
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Hailing Qiao
- Institute of Clinical Pharmacology, Zhengzhou University, Zhengzhou, 450052, Henan, China.
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22
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Pickova D, Ostry V, Toman J, Malir F. Aflatoxins: History, Significant Milestones, Recent Data on Their Toxicity and Ways to Mitigation. Toxins (Basel) 2021; 13:399. [PMID: 34205163 PMCID: PMC8227755 DOI: 10.3390/toxins13060399] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/04/2021] [Accepted: 06/02/2021] [Indexed: 02/07/2023] Open
Abstract
In the early 1960s the discovery of aflatoxins began when a total of 100,000 turkey poults died by hitherto unknown turkey "X" disease in England. The disease was associated with Brazilian groundnut meal affected by Aspergillus flavus. The toxin was named Aspergillus flavus toxin-aflatoxin. From the point of view of agriculture, aflatoxins show the utmost importance. Until now, a total of 20 aflatoxins have been described, with B1, B2, G1, and G2 aflatoxins being the most significant. Contamination by aflatoxins is a global health problem. Aflatoxins pose acutely toxic, teratogenic, immunosuppressive, carcinogenic, and teratogenic effects. Besides food insecurity and human health, aflatoxins affect humanity at different levels, such as social, economical, and political. Great emphasis is placed on aflatoxin mitigation using biocontrol methods. Thus, this review is focused on aflatoxins in terms of historical development, the principal milestones of aflatoxin research, and recent data on their toxicity and different ways of mitigation.
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Affiliation(s)
- Darina Pickova
- Department of Biology, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, CZ-50003 Hradec Kralove, Czech Republic; (V.O.); (J.T.); (F.M.)
| | - Vladimir Ostry
- Department of Biology, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, CZ-50003 Hradec Kralove, Czech Republic; (V.O.); (J.T.); (F.M.)
- Center for Health, Nutrition and Food in Brno, National Institute of Public Health in Prague, Palackeho 3a, CZ-61242 Brno, Czech Republic
| | - Jakub Toman
- Department of Biology, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, CZ-50003 Hradec Kralove, Czech Republic; (V.O.); (J.T.); (F.M.)
| | - Frantisek Malir
- Department of Biology, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, CZ-50003 Hradec Kralove, Czech Republic; (V.O.); (J.T.); (F.M.)
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23
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Barcena-Varela M, Lujambio A. The Endless Sources of Hepatocellular Carcinoma Heterogeneity. Cancers (Basel) 2021; 13:cancers13112621. [PMID: 34073538 PMCID: PMC8198457 DOI: 10.3390/cancers13112621] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Tumor heterogeneity in liver cancer is a major contributor to the high lethality rate found in patients suffering from this disease. The therapeutic outcomes are drastically affected by this heterogeneity, which complicates patient stratification and response prediction. Better understanding of all the factors that can contribute to this heterogeneity will be critical to improve our understanding of liver cancer, in order to optimize the outcome of patients. Abstract Hepatocellular carcinoma (HCC) represents a global health problem. The incidence keeps increasing and current therapeutic options confer limited benefits to the patients. Tumor heterogeneity plays a central role in this context, limiting the availability of predictive biomarkers and complicating the criteria used to choose the most suitable therapeutic option. HCC heterogeneity occurs at different levels: within the population (inter-patient heterogeneity) and within tumors from the same patient (intra-patient and intra-tumor heterogeneity). Experts in the field have made many efforts to classify the patients based on clinicopathological characteristics and molecular signatures; however, there is still much work ahead to be able to integrate the extra-tumor heterogeneity that emerges from the complexity of the tumor microenvironment, which plays a critical role in the pathogenesis of the disease and therapy responses. In this review, we summarize tumor intrinsic and extrinsic sources of heterogeneity of the most common etiologies of HCC and summarize the most recent discoveries regarding the evolutionary trajectory of liver cancer cells and the influence of tumor-extrinsic factors such as the microbiome and the host immune system. We further highlight the potential of novel high-throughput methodologies to contribute to a better understanding of this devastating disease and to the improvement of the clinical management of patients.
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Affiliation(s)
- Marina Barcena-Varela
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Liver Cancer Program, Division of Liver Diseases, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Amaia Lujambio
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Liver Cancer Program, Division of Liver Diseases, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- The Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Graduate School of Biomedical Sciences at Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Correspondence: ; Tel./Fax: +1-212-824-9338
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24
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Groopman JD, Smith JW, Rivera-Andrade A, Alvarez CS, Kroker-Lobos MF, Egner PA, Gharzouzi E, Dean M, McGlynn KA, Ramírez-Zea M. Aflatoxin and the Etiology of Liver Cancer and Its Implications for Guatemala. WORLD MYCOTOXIN J 2021; 14:305-317. [PMID: 35096197 PMCID: PMC8797158 DOI: 10.3920/wmj2020.2641] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
During the 60 years since the first scientific reports about a relation between aflatoxin exposure and adverse health consequences, both in animals and humans, there has been a remarkable number of basic, clinical and population science studies characterizing the impact of this mycotoxin on diseases such as liver cancer. Many of these human investigations to date have focused on populations residing in Asia and Africa due to the high incidence of liver cancer and high exposures to aflatoxin. These studies formed the basis for the International Agency for Research on Cancer to classify the aflatoxins as Group 1 known human carcinogens. In addition, aflatoxin contamination levels have been used in international commodity trade to set the price of various staples such as maize and groundnuts. While there have been many case-control and prospective cohort studies of liver cancer risk over the years there have been remarkably few investigations focused on liver cancer in Latin America. Our interdisciplinary and multiple institutional collaborative has been developing a long-term strategy to characterize the role of aflatoxin and other mycotoxins as health risk factors in Guatemala and neighboring countries. This paper summarizes a number of the investigations to date and provides a roadmap of our strategies for the near term to discern the emergent etiology of liver cancer in this region. With these data in hand public health-based prevention strategies could be strategically implemented and conducted to lower the impact of these mycotoxins on human health.
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Affiliation(s)
- John D. Groopman
- Departments of Environmental Health and Engineering and Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, U.S.A
| | - Joshua W. Smith
- Departments of Environmental Health and Engineering and Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, U.S.A
| | - Alvaro Rivera-Andrade
- INCAP Research Center for the Prevention of Chronic Diseases, Institute of Nutrition of Central America and Panama, Guatemala City, Guatemala
| | - Christian S. Alvarez
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, U.S.A
| | - María F. Kroker-Lobos
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, U.S.A
| | - Patricia A. Egner
- Departments of Environmental Health and Engineering and Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, U.S.A
| | | | - Michael Dean
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, U.S.A
| | - Katherine A. McGlynn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, U.S.A
| | - Manuel Ramírez-Zea
- INCAP Research Center for the Prevention of Chronic Diseases, Institute of Nutrition of Central America and Panama, Guatemala City, Guatemala
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25
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Iscan E, Ekin U, Yildiz G, Oz O, Keles U, Suner A, Cakan-Akdogan G, Ozhan G, Nekulova M, Vojtesek B, Uzuner H, Karakülah G, Alotaibi H, Ozturk M. TAp73β Can Promote Hepatocellular Carcinoma Dedifferentiation. Cancers (Basel) 2021; 13:cancers13040783. [PMID: 33668566 PMCID: PMC7918882 DOI: 10.3390/cancers13040783] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary Hepatocellular carcinoma (HCC) is a highly complex and heterogeneous type of cancer. Hepatocyte dedifferentiation is one of the important steps in the development of HCC. However, its molecular mechanisms are not well known. In this study, we report that transcriptionally active TAp73 isoforms are overexpressed in HCC. We also show that TAp73β suppresses the expression of the hepatocyte markers including CYP3A4, AFP, ALB, HNF4α, while increasing the expression of several cholangiocyte markers in HCC cell lines. In conclusion, this report reveals a pro-oncogenic role for TAp73β in liver cancer. Abstract Hepatocyte dedifferentiation is a major source of hepatocellular carcinoma (HCC), but its mechanisms are unknown. We explored the p73 expression in HCC tumors and studied the effects of transcriptionally active p73β (TAp73β) in HCC cells. Expression profiles of p73 and patient clinical data were collected from the Genomic Data Commons (GDC) data portal and the TSVdb database, respectively. Global gene expression profiles were determined by pan-genomic 54K microarrays. The Gene Set Enrichment Analysis method was used to identify TAp73β-regulated gene sets. The effects of TAp73 isoforms were analyzed in monolayer cell culture, 3D-cell culture and xenograft models in zebrafish using western blot, flow cytometry, fluorescence imaging, real-time polymerase chain reaction (RT-PCR), immunohistochemistry and morphological examination. TAp73 isoforms were significantly upregulated in HCC, and high p73 expression correlated with poor patient survival. The induced expression of TAp73β caused landscape expression changes in genes involved in growth signaling, cell cycle, stress response, immunity, metabolism and development. Hep3B cells overexpressing TAp73β had lost hepatocyte lineage biomarkers including ALB, CYP3A4, AFP, HNF4α. In contrast, TAp73β upregulated genes promoting cholangiocyte lineage such as YAP, JAG1 and ZO-1, accompanied with an increase in metastatic ability. Our findings suggest that TAp73β may promote malignant dedifferentiation of HCC cells.
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Affiliation(s)
- Evin Iscan
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
| | - Umut Ekin
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
| | - Gokhan Yildiz
- Department of Medical Biology, Faculty of Medicine, Karadeniz Technical University, Trabzon 61000, Turkey;
| | - Ozden Oz
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
- Izmir Bozyaka Education and Research Hospital, University of Health Sciences, Izmir 35000, Turkey
| | - Umur Keles
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
| | - Aslı Suner
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Ege University, Izmir 35000, Turkey;
| | - Gulcin Cakan-Akdogan
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Department of Medical Biology, Faculty of Medicine, Dokuz Eylul University, Izmir 35000, Turkey
| | - Gunes Ozhan
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
| | - Marta Nekulova
- RECAMO, Masaryk Memorial Cancer Institute, 60200 Brno, Czech Republic; (M.N.); (B.V.)
| | - Borivoj Vojtesek
- RECAMO, Masaryk Memorial Cancer Institute, 60200 Brno, Czech Republic; (M.N.); (B.V.)
| | - Hamdiye Uzuner
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
| | - Gökhan Karakülah
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
| | - Hani Alotaibi
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir 35000, Turkey
| | - Mehmet Ozturk
- Izmir Biomedicine and Genome Center, Izmir 35000, Turkey; (E.I.); (U.E.); (O.O.); (U.K.); (G.C.-A.); (G.O.); (H.U.); (G.K.); (H.A.)
- Correspondence:
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26
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Hepatocellular carcinoma. Nat Rev Dis Primers 2021. [DOI: 10.1038/s41572-020-00240-3 order by 1-- #] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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27
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Llovet JM, Kelley RK, Villanueva A, Singal AG, Pikarsky E, Roayaie S, Lencioni R, Koike K, Zucman-Rossi J, Finn RS. Hepatocellular carcinoma. Nat Rev Dis Primers 2021; 7:6. [PMID: 33479224 DOI: 10.1038/s41572-020-00240-3] [Citation(s) in RCA: 2564] [Impact Index Per Article: 854.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
Liver cancer remains a global health challenge, with an estimated incidence of >1 million cases by 2025. Hepatocellular carcinoma (HCC) is the most common form of liver cancer and accounts for ~90% of cases. Infection by hepatitis B virus and hepatitis C virus are the main risk factors for HCC development, although non-alcoholic steatohepatitis associated with metabolic syndrome or diabetes mellitus is becoming a more frequent risk factor in the West. Moreover, non-alcoholic steatohepatitis-associated HCC has a unique molecular pathogenesis. Approximately 25% of all HCCs present with potentially actionable mutations, which are yet to be translated into the clinical practice. Diagnosis based upon non-invasive criteria is currently challenged by the need for molecular information that requires tissue or liquid biopsies. The current major advancements have impacted the management of patients with advanced HCC. Six systemic therapies have been approved based on phase III trials (atezolizumab plus bevacizumab, sorafenib, lenvatinib, regorafenib, cabozantinib and ramucirumab) and three additional therapies have obtained accelerated FDA approval owing to evidence of efficacy. New trials are exploring combination therapies, including checkpoint inhibitors and tyrosine kinase inhibitors or anti-VEGF therapies, or even combinations of two immunotherapy regimens. The outcomes of these trials are expected to change the landscape of HCC management at all evolutionary stages.
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Affiliation(s)
- Josep M Llovet
- Mount Sinai Liver Cancer Program, Division of Liver Diseases, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Translational Research in Hepatic Oncology, Liver Unit, IDIBAPS, Hospital Clinic, University of Barcelona, Catalonia, Spain. .,Institució Catalana d'Estudis Avançats (ICREA), Barcelona, Catalonia, Spain.
| | - Robin Kate Kelley
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco (UCSF), San Francisco, CA, USA
| | - Augusto Villanueva
- Mount Sinai Liver Cancer Program, Division of Liver Diseases, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Amit G Singal
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Eli Pikarsky
- The Lautenberg Center for Immunology and Cancer Research, IMRIC, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Sasan Roayaie
- White Plains Hospital Center for Cancer Care, Montefiore Health, White Plains, NY, USA
| | - Riccardo Lencioni
- Department of Radiology, Pisa University School of Medicine, Pisa, Italy.,Department of Radiology, Miami Cancer Insitute, Miami, FL, USA
| | - Kazuhiko Koike
- The University of Tokyo, Department of Gastroenterology, Tokyo, Japan
| | - Jessica Zucman-Rossi
- Centre de Recherche des Cordeliers, Sorbonne Université, Inserm, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France.,Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Richard S Finn
- Department of Oncology, Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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28
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Hepatocellular carcinoma. Nat Rev Dis Primers 2021. [DOI: 10.1038/s41572-020-00240-3 and 1880=1880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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29
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Hepatocellular carcinoma. Nat Rev Dis Primers 2021. [DOI: 10.1038/s41572-020-00240-3 order by 1-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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30
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Hepatocellular carcinoma. Nat Rev Dis Primers 2021. [DOI: 10.1038/s41572-020-00240-3 order by 1-- gadu] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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31
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Nahon P, Allaire M, Nault JC, Paradis V. Characterizing the mechanism behind the progression of NAFLD to hepatocellular carcinoma. Hepat Oncol 2020; 7:HEP36. [PMID: 33680428 PMCID: PMC7907968 DOI: 10.2217/hep-2020-0017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) developed in non-alcoholic fatty liver disease (NAFLD) individuals presents substantial clinical and biological characteristics, which remain to be elucidated. Its occurrence in noncirrhotic patients raises issues regarding surveillance strategies, which cannot be considered as cost-effective given the high prevalence of obesity and metabolic syndrome, and furthermore delineates specific oncogenic process that could be targeted in the setting of primary or secondary prevention. In this context, the identification of a genetic heterogeneity modulating HCC risk as well as specific biological pathways have been made possible through genome-wide association studies, development of animal models and in-depth analyses of human samples at the pathological and genomic levels. These advances must be confirmed and pursued to pave the way for personalized management of NAFLD-related HCC.
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Affiliation(s)
- Pierre Nahon
- APHP, Service d'Hépatologie, Hôpital Jean Verdier, Hôpitaux Universitaires Paris-Seine-Saint-Denis, Bondy.,Inserm, UMR-1162, Génomique Fonctionnelle des Tumeurs Solides, Equipe Labellisée Ligue Contre le Cancer, Institut Universitaire d'Hématologie, Paris, France.,Université Paris 13, Sorbonne Paris Cité, Unité de Formation et de Recherche Santé, Médecine, Biologie Humaine, Bobigny, France
| | - Manon Allaire
- APHP, Service d'Hépatologie, GH Pitié-Salpêtrière, Paris, France.,Université de Paris, Centre de recherche sur l'inflammation, Inserm-UMR1149, 75018 Paris, France
| | - Jean-Charles Nault
- APHP, Service d'Hépatologie, Hôpital Jean Verdier, Hôpitaux Universitaires Paris-Seine-Saint-Denis, Bondy.,Inserm, UMR-1162, Génomique Fonctionnelle des Tumeurs Solides, Equipe Labellisée Ligue Contre le Cancer, Institut Universitaire d'Hématologie, Paris, France.,Université Paris 13, Sorbonne Paris Cité, Unité de Formation et de Recherche Santé, Médecine, Biologie Humaine, Bobigny, France
| | - Valérie Paradis
- APHP, Service d'Anatomopathologie, Hôpital Beaujon, Clichy, France.,Université de Paris, CNRS, Centre de Recherche sur l'Inflammation (CRI), Paris F-75890, France
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32
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Gillman R, Lopes Floro K, Wankell M, Hebbard L. The role of DNA damage and repair in liver cancer. Biochim Biophys Acta Rev Cancer 2020; 1875:188493. [PMID: 33316376 DOI: 10.1016/j.bbcan.2020.188493] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/25/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
Hepatocellular carcinoma is rapidly becoming a major cause of global mortality due to the ever-increasing prevalence of obesity. DNA damage is known to play an important role in cancer initiation, however DNA repair systems are also vital for the survival of cancer cells. Given the function of the liver and its exposure to the gut, it is likely that DNA damage and repair would be of particular importance in hepatocellular carcinoma. However, many contemporary reports have neglected the role of individual pathways of DNA damage and repair in their hypotheses. This review, therefore, aims to provide a concise overview for researchers in the field of liver cancer to understand the pathways of DNA damage and repair and their individual roles in hepatocellular carcinoma.
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Affiliation(s)
- Rhys Gillman
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Kylie Lopes Floro
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia; Department of Radiation Oncology, Townsville University Hospital, Townsville, Queensland, Australia
| | - Miriam Wankell
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia; Australian Institute for Tropical Health and Medicine, Townsville, Queensland, Australia
| | - Lionel Hebbard
- Department of Molecular and Cell Biology, College of Public Health, Medical, and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia; Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney, New South Wales, Australia; Australian Institute for Tropical Health and Medicine, Townsville, Queensland, Australia.
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33
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Kim E, Viatour P. Hepatocellular carcinoma: old friends and new tricks. Exp Mol Med 2020; 52:1898-1907. [PMID: 33268834 PMCID: PMC8080814 DOI: 10.1038/s12276-020-00527-1] [Citation(s) in RCA: 135] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/28/2020] [Accepted: 10/13/2020] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most prevalent primary liver cancer and a leading cause of cancer-related deaths worldwide. Ninety percent of HCC cases arise from cirrhosis, during which liver cells undergo chronic cycles of necrosis and regeneration. The complex genomic landscape of HCC has been extensively investigated to draw correlations between recurrently mutated pathways and patient prognosis. However, our limited success with targeted therapy shows that knowing the presence of somatic mutations alone is insufficient for us to gauge the full spectrum of their functional consequences in the context of tumor evolution. In addition, the current molecular classification of HCC offers little information on the relationship between the molecular features and immunological properties of HCC tumors and their immune microenvironment. This review introduces current challenges and advancements made in HCC surveillance, diagnosis, and treatment. We also discuss the suite of HCC-associated genetic changes and describe recent studies that provide evidence for an evolving functional model and its implications for understanding and targeting HCC progression.
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Affiliation(s)
- Eunsun Kim
- Stanford Cancer Institute, Stanford University, Stanford, CA, USA.
| | - Patrick Viatour
- Children's Hospital of Philadelphia, Center for Childhood Cancer Research, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Garcia-Lezana T, Lopez-Canovas JL, Villanueva A. Signaling pathways in hepatocellular carcinoma. Adv Cancer Res 2020; 149:63-101. [PMID: 33579428 DOI: 10.1016/bs.acr.2020.10.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Despite the recent introduction of new effective systemic agents, the survival of patients with hepatocellular carcinoma (HCC) at advanced stages remains dismal. This underscores the need for new therapies, which has spurred extensive research on the identification of the main drivers of pathway de-regulation as a source of novel therapeutic targets. Frequently altered pathways in HCC involve growth factor receptors (e.g., VEGFR, FGFR, TGFA, EGFR, IGFR) and/or its cytoplasmic intermediates (e.g., PI3K-AKT-mTOR, RAF/ERK/MAPK) as well as key pathways in cell differentiation (e.g., Wnt/β-catenin, JAK/STAT, Hippo, Hedgehog, Notch). Somatic mutations, chromosomal aberrations and epigenetic changes are common mechanisms for pathway deregulation in HCC. Aberrant pathway activation has also been explored as a biomarker to predict response to specific therapies, but currently, these strategies are not implemented when deciding systemic therapies in HCC patients. Beyond the well-established molecular cascades, there are numerous emerging signaling pathways also deregulated in HCC (e.g., tumor microenvironment, non-coding RNA, intestinal microbiota), which have opened new avenues for therapeutic exploration.
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Affiliation(s)
- Teresa Garcia-Lezana
- Division of Liver Diseases, Liver Cancer Program, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Juan Luis Lopez-Canovas
- Department of Cell Biology, Physiology and Immunology, Maimonides Institute of Biomedical Research of Córdoba (IMIBIC), University of Córdoba, Córdoba, Spain
| | - Augusto Villanueva
- Division of Liver Diseases, Liver Cancer Program, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Division of Hematology and Medical Oncology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
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35
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Adaku Chilaka C, Mally A. Mycotoxin Occurrence, Exposure and Health Implications in Infants and Young Children in Sub-Saharan Africa: A Review. Foods 2020; 9:E1585. [PMID: 33139646 PMCID: PMC7693847 DOI: 10.3390/foods9111585] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/22/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023] Open
Abstract
Infants and young children (IYC) remain the most vulnerable population group to environmental hazards worldwide, especially in economically developing regions such as sub-Saharan Africa (SSA). As a result, several governmental and non-governmental institutions including health, environmental and food safety networks and researchers have been proactive toward protecting this group. Mycotoxins, toxic secondary fungal metabolites, contribute largely to the health risks of this young population. In SSA, the scenario is worsened by socioeconomic status, poor agricultural and storage practices, and low level of awareness, as well as the non-establishment and lack of enforcement of regulatory limits in the region. Studies have revealed mycotoxin occurrence in breast milk and other weaning foods. Of concern is the early exposure of infants to mycotoxins through transplacental transfer and breast milk as a consequence of maternal exposure, which may result in adverse health effects. The current paper presents an overview of mycotoxin occurrence in foods intended for IYC in SSA. It discusses the imperative evidence of mycotoxin exposure of this population group in SSA, taking into account consumption data and the occurrence of mycotoxins in food, as well as biomonitoring approaches. Additionally, it discusses the health implications associated with IYC exposure to mycotoxins in SSA.
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Affiliation(s)
- Cynthia Adaku Chilaka
- Institute of Pharmacology and Toxicology, Julius Maximilian University of Würzburg, Versbacher Straβe 9, 97078 Würzburg, Germany;
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Nakayama J, Gong Z. Transgenic zebrafish for modeling hepatocellular carcinoma. MedComm (Beijing) 2020; 1:140-156. [PMID: 34766114 PMCID: PMC8491243 DOI: 10.1002/mco2.29] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 12/14/2022] Open
Abstract
Liver cancer is the third leading cause of cancer‐related deaths throughout the world, and more than 0.6 million people die from liver cancer annually. Therefore, novel therapeutic strategies to eliminate malignant cells from liver cancer patients are urgently needed. Recent advances in high‐throughput genomic technologies have identified de novo candidates for oncogenes and pharmacological targets. However, testing and understanding the mechanism of oncogenic transformation as well as probing the kinetics and therapeutic responses of spontaneous tumors in an intact microenvironment require in vivo examination using genetically modified animal models. The zebrafish (Danio rerio) has attracted increasing attention as a new model for studying cancer biology since the organs in the model are strikingly similar to human organs and the model can be genetically modified in a short time and at a low cost. This review summarizes the current knowledge of epidemiological data and genetic alterations in hepatocellular carcinoma (HCC), zebrafish models of HCC, and potential therapeutic strategies for targeting HCC based on knowledge from the models.
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Affiliation(s)
- Joji Nakayama
- Department of Biological Sciences National University of Singapore Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences National University of Singapore Singapore
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37
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Qin W, Han C, Mai R, Yu T, Shang L, Ye X, Zhu G, Su H, Liao X, Liu Z, Yu L, Liu X, Yang C, Wang X, Peng M, Peng T. Establishment of a prognostic model for predicting short-term disease-free survival in cases of hepatitis B-related hepatocellular carcinoma with the TP53 249Ser mutation in southern China. Transl Cancer Res 2020; 9:4517-4533. [PMID: 35117817 PMCID: PMC8798450 DOI: 10.21037/tcr-19-2788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 06/17/2020] [Indexed: 12/14/2022]
Abstract
Background Hepatitis B virus (HBV) infection and dietary aflatoxin exposure are two major and synergistic carcinogenic factors of hepatocellular carcinoma (HCC) in southern China. Mutation of the TP53 gene at codon 249 (TP53 249Ser) is recognized as a fingerprint of aflatoxin B1 (AFB1) exposure. Methods A total of 485 HCC patients positive for serum hepatitis B surface antigen were enrolled. The clinicopathological information and survival time were collected. TP53 249Ser mutations in HCC were detected by Sanger DNA sequencing after PCR amplification. Immunohistochemical staining was used to evaluate TP53 expression. Propensity score matching (PSM) and Cox proportional hazards regression (CPHR) were conducted to identify independent risk factors for prognosis that were incorporated into the nomogram. Univariate logistic regression analysis was used to compare differences in clinical factors between the TP53 249Ser mutation group and the non-mutation group. A Kaplan-Meier plot, univariate and multivariate Cox proportional hazards models were used to assess the association between clinicopathological characteristics and survival outcomes. Results After PSM, a total of 322 cases were included in the analysis of clinical prognosis. Results of CPHR showed that the mutation group had a relatively higher risk of tumor recurrence within 2 years after undergoing hepatectomy (P=0.039, HR =1.47, 95% CI: 1.02–2.18). The prognostic model performed better in terms of 2-year DFS prediction than BCLC stage. Patients who had a nomogram score of more than 160 were considered to have a higher risk of recurrence within 2 years. Conclusions Our study found that the TP53 249Ser mutation may be a high risk factor of HBV-related HCC recurrence in the short term. And we initially established a nomogram scoring system for predicting 2-year recurrence in HBV-related HCC patients in southern China.
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Affiliation(s)
- Wei Qin
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Chuangye Han
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Rongyun Mai
- Department of Hepatobiliary & Pancreatic Surgery, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Tingdong Yu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Liming Shang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xinping Ye
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Guangzhi Zhu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hao Su
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiwen Liao
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhengtao Liu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Long Yu
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaoguang Liu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Chengkun Yang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiangkun Wang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Minhao Peng
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Tao Peng
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Tsai S, Gamblin TC. Molecular Characteristics of Biliary Tract and Primary Liver Tumors. Surg Oncol Clin N Am 2020; 28:685-693. [PMID: 31472913 DOI: 10.1016/j.soc.2019.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
With the recent decline in cost of high-throughput next-generation sequencing, detailed characterization of biliary tract and primary liver tumors continues to evolve. Recent studies have elucidated molecular signatures that reflect distinct pathways of carcinogenesis reflective of viral, parasitic, and toxin-related etiologic factors. With greater elucidation of the molecular pathogenesis of disease, novel targets that may be potential clinically actionable continue to be identified.
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Affiliation(s)
- Susan Tsai
- Division of Surgical Oncology, Department of Surgery, Medical College of Wisconsin, 8701 West Watertown Plank Road, Milwaukee, WI 53226-3596, USA.
| | - T Clark Gamblin
- Division of Surgical Oncology, Department of Surgery, Medical College of Wisconsin, 8701 West Watertown Plank Road, Milwaukee, WI 53226-3596, USA
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The landscape of gene mutations in cirrhosis and hepatocellular carcinoma. J Hepatol 2020; 72:990-1002. [PMID: 32044402 DOI: 10.1016/j.jhep.2020.01.019] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/16/2020] [Accepted: 01/21/2020] [Indexed: 12/13/2022]
Abstract
Chronic liver disease and primary liver cancer are a massive global problem, with a future increase in incidences predicted. The most prevalent form of primary liver cancer, hepatocellular carcinoma, occurs after years of chronic liver disease. Mutations in the genome are a causative and defining feature of all cancers. Chronic liver disease, mostly at the cirrhotic stage, causes the accumulation of progressive mutations which can drive cancer development. Within the liver, a Darwinian process selects out dominant clones with selected driver mutations but also leaves a trail of passenger mutations which can be used to track the evolution of a tumour. Understanding what causes specific mutations and how they combine with one another to form cancer is a question at the heart of understanding, preventing and tackling liver cancer. Herein, we review the landscape of gene mutations in cirrhosis, especially those paving the way toward hepatocellular carcinoma development, that have been characterised by recent studies capitalising on technological advances in genomic sequencing. With these insights, we are beginning to understand how cancers form in the liver, particularly on the background of chronic liver disease. This knowledge may soon lead to breakthroughs in the way we detect, diagnose and treat this devastating disease.
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Venkatachalam K, Vinayagam R, Arokia Vijaya Anand M, Isa NM, Ponnaiyan R. Biochemical and molecular aspects of 1,2-dimethylhydrazine (DMH)-induced colon carcinogenesis: a review. Toxicol Res (Camb) 2020; 9:2-18. [PMID: 32440334 DOI: 10.1093/toxres/tfaa004] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 01/20/2020] [Accepted: 02/12/2020] [Indexed: 02/07/2023] Open
Abstract
1,2-dimethylhydrazine (DMH) is a member in the class of hydrazines, strong DNA alkylating agent, naturally present in cycads. DMH is widely used as a carcinogen to induce colon cancer in animal models. Exploration of DMH-induced colon carcinogenesis in rodent models provides the knowledge to perceive the biochemical, molecular, and histological mechanisms of different stages of colon carcinogenesis. The procarcinogen DMH, after a series of metabolic reactions, finally reaches the colon, there produces the ultimate carcinogen and reactive oxygen species (ROS), which further alkylate the DNA and initiate the development of colon carcinogenesis. The preneolpastic lesions and histopathological observations of DMH-induced colon tumors may provide typical understanding about the disease in rodents and humans. In addition, this review discusses about the action of biotransformation and antioxidant enzymes involved in DMH intoxication. This understanding is essential to accurately identify and interpret alterations that occur in the colonic mucosa when evaluating natural or pharmacological compounds in DMH-induced animal colon carcinogenesis.
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Affiliation(s)
- Karthikkumar Venkatachalam
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, UAE University, Al Ain-17666, United Arab Emirates
| | - Ramachandran Vinayagam
- Department of Biotechnology, Thiruvalluvar University, Serkadu, Vellore, Tamilnadu 632 115, India
| | | | - Nurulfiza Mat Isa
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, 43400 Seri Kembangan, Selangor, Malaysia
| | - Rajasekar Ponnaiyan
- Department of Zoology, Jamal Mohamed College, Tiruchirappalli, Tamil Nadu 620020, India
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41
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Abstract
HCC (hepatocellular carcinoma) is the second leading cause of cancer deaths worldwide, with several etiologic causes, mostly inflammation-associated. Different inflammatory responses in the liver can be triggered by different etiological agents. The inflammatory process can be resolved or be persistent, depending on the etiology and multiple other factors. Chronic inflammation, tissue remodeling, genetic alterations, and modifications in cellular signaling are considered to be key processes promoting immunosuppression. The progressive immunosuppression leads to the inactivation of anti-tumor immunity involved in HCC carcinogenesis and progression. Tumor cellular processes including DNA damage, necrosis, and ER (endoplasmic reticulum) stress can affect both immune-surveillance and cancer-promoting inflammation, supporting a mutual interdependence. Here, we review the current understanding of how chronic liver injury and inflammation is triggered and sustained, and how inflammation is linked to HCC. The identification of many hepatic microenvironmental inflammatory processes and their effector molecules, has resulted in extensive translational work and promising clinical trials of new immunomodulatory agents.
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42
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Nault JC, Cheng AL, Sangro B, Llovet JM. Milestones in the pathogenesis and management of primary liver cancer. J Hepatol 2020; 72:209-214. [PMID: 31954486 DOI: 10.1016/j.jhep.2019.11.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 01/27/2023]
Affiliation(s)
- Jean-Charles Nault
- Service d'Hépatologie, Hôpital Jean Verdier, Hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bondy, France; Unité mixte de Recherche 1162, Génomique fonctionnelle des Tumeurs solides, Institut national de la Santé et de la Recherche médicale, Paris, France; Unité de Formation et de Recherche Santé Médecine et Biologie humaine, Université Paris 13, Communauté d'Universités et Etablissements Sorbonne Paris Cité, Paris, France.
| | - Ann-Lii Cheng
- Department of Oncology, National Taiwan University Cancer Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Bruno Sangro
- Liver Unit, Clinica Universidad de Navarra-IDISNA and CIBEREHD, Pamplona, Spain
| | - Josep M Llovet
- Mount Sinai Liver Cancer Program, Division of Liver Diseases, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Translational Research in Hepatic Oncology Group, Liver Unit, IDIBAPS, Hospital Clinic Barcelona, University of Barcelona, Barcelona, Catalonia, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Catalonia, Spain.
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Benkerroum N. Retrospective and Prospective Look at Aflatoxin Research and Development from a Practical Standpoint. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E3633. [PMID: 31569703 PMCID: PMC6801849 DOI: 10.3390/ijerph16193633] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 12/19/2022]
Abstract
Among the array of structurally and toxicologically diverse mycotoxins, aflatoxins have attracted the most interest of scientific research due to their high toxicity and incidence in foods and feeds. Despite the undeniable progress made in various aspects related to aflatoxins, the ultimate goal consisting of reducing the associated public health risks worldwide is far from being reached due to multiplicity of social, political, economic, geographic, climatic, and development factors. However, a reasonable degree of health protection is attained in industrialized countries owing to their scientific, administrative, and financial capacities allowing them to use high-tech agricultural management systems. Less fortunate situations exist in equatorial and sub-equatorial developing countries mainly practicing traditional agriculture managed by smallholders for subsistence, and where the climate is suitable for mould growth and aflatoxin production. This situation worsens due to climatic change producing conditions increasingly suitable for aflatoxigenic mould growth and toxin production. Accordingly, it is difficult to harmonize the regulatory standards of aflatoxins worldwide, which prevents agri-foods of developing countries from accessing the markets of industrialized countries. To tackle the multi-faceted aflatoxin problem, actions should be taken collectively by the international community involving scientific research, technological and social development, environment protection, awareness promotion, etc. International cooperation should foster technology transfer and exchange of pertinent technical information. This review presents the main historical discoveries leading to our present knowledge on aflatoxins and the challenges that should be addressed presently and in the future at various levels to ensure higher health protection for everybody. In short, it aims to elucidate where we come from and where we should go in terms of aflatoxin research/development.
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Affiliation(s)
- Noreddine Benkerroum
- Department of Food Science and Agricultural Chemistry, Macdonald-Stewart Building, McGill University, Macdonald Campus, 21,111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada.
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44
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Shastri S, Chatterjee B, Thakur SS. Achievements in Cancer Research and its Therapeutics in Hundred Years. Curr Top Med Chem 2019; 19:1545-1562. [PMID: 31362690 DOI: 10.2174/1568026619666190730093034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 07/16/2019] [Accepted: 07/18/2019] [Indexed: 12/19/2022]
Abstract
Cancer research has progressed leaps and bounds over the years. This review is a brief overview of the cancer research, milestone achievements and therapeutic studies on it over the one hundred ten years which would give us an insight into how far we have come to understand and combat this fatal disease leading to millions of deaths worldwide. Modern biology has proved that cancer is a very complex disease as still we do not know precisely how it triggers. It involves several factors such as protooncogene, oncogene, kinase, tumor suppressor gene, growth factor, signalling cascade, micro RNA, immunity, environmental factors and carcinogens. However, modern technology now helps the cancer patient on the basis of acquired and established knowledge in the last hundred years to save human lives.
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Affiliation(s)
- Sravanthi Shastri
- Proteomics and Cell Signaling, Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Bhaswati Chatterjee
- National Institute of Pharmaceutical Education and Research, Hyderabad, India
| | - Suman S Thakur
- Proteomics and Cell Signaling, Centre for Cellular and Molecular Biology, Hyderabad, India
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45
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Abstract
The prognosis of patients with hepatocellular carcinoma is dependent on the stage of tumor at diagnosis. The earlier the tumor is found, the higher the chances to offer a curative treatment. In order to diagnose hepatocellular carcinoma early, patients at risk should be enrolled in a surveillance program. The population at risk is usually defined as patients with cirrhosis. These patients should have twice a year a ultrasonographic examination of the liver. However, more and more patients will develop hepatocellular carcinoma in the context of nonalcoholic fatty liver disease which is tightly linked to obesity and diabetes. In these patients, this approach is jeopardized by the difficulty to perform a sonography of good quality due to the obesity and more importantly by the fact that hepatocellular carcinoma occurs frequently in the context of nonalcoholic fatty liver disease before the cirrhosis. This article reviews the impact of the changing epidemiology of hepatocellular carcinoma on its screening.
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Affiliation(s)
- Naomi Lange
- Department of General Internal Medicine, Inselspital-Bern University Hospital, Freiburgstrasse 4, 3010, Bern, Switzerland.,Hepatology, Department of Visceral Surgery and Medicine, Inselspital-Bern University Hospital, Freiburgstrasse 4, 3010, Bern, Switzerland
| | - Jean-François Dufour
- Hepatology, Department of Visceral Surgery and Medicine, Inselspital-Bern University Hospital, Freiburgstrasse 4, 3010, Bern, Switzerland. .,Department of Biomedical Research, University of Bern, Bern, Switzerland.
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Wang H, Liao P, Zeng SX, Lu H. It takes a team: a gain-of-function story of p53-R249S. J Mol Cell Biol 2019; 11:277-283. [PMID: 30608603 PMCID: PMC6487778 DOI: 10.1093/jmcb/mjy086] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 11/03/2018] [Accepted: 01/03/2019] [Indexed: 12/11/2022] Open
Abstract
Gain-of-function (GOF), the most malicious oncogenic activity of a cancer-promoting protein, is well illustrated to three hotspot p53 mutations at R248, R175, and R273 with distinct molecular mechanisms. Yet, less is known about another hotspot p53 mutant, R249S (p53-R249S). p53-R249S is the sole hotspot mutation in hepatocellular carcinoma (HCC) that is highly associated with chronic hepatitis B virus (HBV) infection and dietary exposure to aflatoxin B1 (AFB1). Its GOF is suggested by the facts that this mutant is associated with earlier onset of HCC and poorer prognosis of cancer patients and that its overexpression drives HCC proliferation and tumorigenesis. By contrast, simply knocking in this mutant in normal mice did not show apparent GOF activity. Hence, the GOF activity for p53-R249S and its underlying mechanisms have been elusive until recent findings offered some new insights. This review will discuss these findings as well as their clinical significance and implications for the development of a strategy to target multiple molecules as a therapy for p53-R249S-harboring HCC.
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Affiliation(s)
- Huai Wang
- Department of Biochemistry and Molecular Biology, Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
- School of Public Health, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, China
| | - Peng Liao
- Department of Biochemistry and Molecular Biology, Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Shelya X Zeng
- Department of Biochemistry and Molecular Biology, Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
| | - Hua Lu
- Department of Biochemistry and Molecular Biology, Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA, USA
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47
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McCullough AK, Lloyd RS. Mechanisms underlying aflatoxin-associated mutagenesis - Implications in carcinogenesis. DNA Repair (Amst) 2019; 77:76-86. [PMID: 30897375 DOI: 10.1016/j.dnarep.2019.03.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/01/2019] [Accepted: 03/05/2019] [Indexed: 01/07/2023]
Abstract
Chronic dietary exposure to aflatoxin B1 (AFB1), concomitant with hepatitis B infection is associated with a significant increased risk for hepatocellular carcinomas (HCCs) in people living in Southeast Asia and sub-Saharan Africa. Human exposures to AFB1 occur through the consumption of foods that are contaminated with pervasive molds, including Aspergillus flavus. Even though dietary exposures to aflatoxins constitute the second largest global environmental risk factor for cancer development, there are still significant questions concerning the molecular mechanisms driving carcinogenesis and what factors may modulate an individual's risk for HCC. The objective of this review is to summarize key discoveries that established the association of chronic inflammation (most commonly associated with hepatitis B viral (HBV) infection) and environmental exposures to aflatoxin with increased HCC risk. Special emphasis will be given to recent investigations that have: 1) refined the aflatoxin-associated mutagenic signature, 2) expanded the DNA repair mechanisms that limit mutagenesis via adduct removal prior to replication-induced mutagenesis, 3) implicated a specific DNA polymerase in the error-prone bypass and resulting mutagenesis, and 4) identified human polymorphic variants that may modulate individual susceptibility to aflatoxin-induced cancers. Collectively, these investigations revealed that specific sequence contexts are differentially resistant against, or prone to, aflatoxin-induced mutagenesis and that these associations are remarkably similar between in vitro and in vivo analyses. These recent investigations also established DNA polymerase ζ as the major polymerase that confers the G to T transversion signature. Additionally, although the nucleotide excision repair (NER) pathway has been previously shown to repair aflatoxin-induced DNA adducts, recent murine data demonstrated that NEIL1-initiated base excision repair was significantly more important than NER relative to the removal of the highly mutagenic AFB1-Fapy-dG adducts. These data suggest that inactivating polymorphic variants of NEIL1 could be a potential driver of HCCs in aflatoxin-exposed populations.
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Affiliation(s)
- Amanda K McCullough
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States; Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR 97239, United States
| | - R Stephen Lloyd
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239, United States; Department of Molecular and Medical Genetics, Oregon Health & Science University, Portland, OR 97239, United States; Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, OR 97239, United States.
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48
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tRNA modification and cancer: potential for therapeutic prevention and intervention. Future Med Chem 2019; 11:885-900. [PMID: 30744422 DOI: 10.4155/fmc-2018-0404] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Transfer RNAs (tRNAs) undergo extensive chemical modification within cells through the activity of tRNA methyltransferase enzymes (TRMs). Although tRNA modifications are dynamic, how they impact cell behavior after stress and during tumorigenesis is not well understood. This review discusses how tRNA modifications influence the translation of codon-biased transcripts involved in responses to oxidative stress. We further discuss emerging mechanistic details about how aberrant TRM activity in cancer cells can direct programs of codon-biased translation that drive cancer cell phenotypes. The studies reviewed here predict future preventative therapies aimed at augmenting TRM activity in individuals at risk for cancer due to exposure. They further predict that attenuating TRM-dependent translation in cancer cells may limit disease progression while leaving noncancerous cells unharmed.
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49
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Rushing BR, Selim MI. Aflatoxin B1: A review on metabolism, toxicity, occurrence in food, occupational exposure, and detoxification methods. Food Chem Toxicol 2019; 124:81-100. [DOI: 10.1016/j.fct.2018.11.047] [Citation(s) in RCA: 325] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 12/30/2022]
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50
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Hashem EM, Mabrouk MS, Eldeib AM. Analyzing cytogenetic chromosomal aberrations on fibrolamellar hepatocellular carcinoma detected by single-nucleotide polymorphs array. Neural Comput Appl 2019. [DOI: 10.1007/s00521-017-3034-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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