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Jiang GM, Tan Y, Wang H, Peng L, Chen HT, Meng XJ, Li LL, Liu Y, Li WF, Shan H. The relationship between autophagy and the immune system and its applications for tumor immunotherapy. Mol Cancer 2019; 18:17. [PMID: 30678689 PMCID: PMC6345046 DOI: 10.1186/s12943-019-0944-z] [Citation(s) in RCA: 226] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/14/2019] [Indexed: 12/15/2022] Open
Abstract
Autophagy is a genetically well-controlled cellular process that is tightly controlled by a set of core genes, including the family of autophagy-related genes (ATG). Autophagy is a “double-edged sword” in tumors. It can promote or suppress tumor development, which depends on the cell and tissue types and the stages of tumor. At present, tumor immunotherapy is a promising treatment strategy against tumors. Recent studies have shown that autophagy significantly controls immune responses by modulating the functions of immune cells and the production of cytokines. Conversely, some cytokines and immune cells have a great effect on the function of autophagy. Therapies aiming at autophagy to enhance the immune responses and anti-tumor effects of immunotherapy have become the prospective strategy, with enhanced antigen presentation and higher sensitivity to CTLs. However, the induction of autophagy may also benefit tumor cells escape from immune surveillance and result in intrinsic resistance against anti-tumor immunotherapy. Increasing studies have proven the optimal use of either ATG inducers or inhibitors can restrain tumor growth and progression by enhancing anti-tumor immune responses and overcoming the anti-tumor immune resistance in combination with several immunotherapeutic strategies, indicating that induction or inhibition of autophagy might show us a prospective therapeutic strategy when combined with immunotherapy. In this article, the possible mechanisms of autophagy regulating immune system, and the potential applications of autophagy in tumor immunotherapy will be discussed.
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Affiliation(s)
- Guan-Min Jiang
- Department of Clinical laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China. .,Central Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China.
| | - Yuan Tan
- Department of Clinical Laboratory, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hao Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, China
| | - Liang Peng
- Department of Clinical laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hong-Tao Chen
- Department of Clinical laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Xiao-Jun Meng
- Department of Endocrinology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Ling-Ling Li
- Central Laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Yan Liu
- Department of Clinical laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Wen-Fang Li
- Department of Clinical laboratory, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China
| | - Hong Shan
- Key Laboratory of Biomedical Imaging of Guangdong Province, Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong, China.
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Chen J, Chen Y, Feng F, Chen C, Zeng H, Wen S, Xu X, He J, Li J. Programmed cell death protein-1/programmed death-ligand 1 blockade enhances the antitumor efficacy of adoptive cell therapy against non-small cell lung cancer. J Thorac Dis 2018; 10:6711-6721. [PMID: 30746216 DOI: 10.21037/jtd.2018.10.111] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Cytokine-induced killer (CIK) cells and natural killer (NK) cells are employed by two different approaches to adoptive cell immunotherapy for cancer. It has been reported that adoptive cell immunotherapy could prolong the overall survival (OS) of advanced cancer patients. The introduction of agents that induce immune checkpoint blockades has improved the efficacy of immune-mediated therapy for metastatic cancers. However, the effects of combining a checkpoint inhibitor with CIK cells or NK cells to target non-small cell lung cancer (NSCLC)remain unknown. Methods The present study investigated the effects of combining CIK cells with a programmed cell death protein-1 (PD-1) inhibitor (an anti-PD-1 monoclonal antibody). During the expansion cultivation, the addition of the PD-1 antibody promoted CIK-mediated cytotoxicity in H1975 lung adenocarcinoma cells. Co-cultivation of CIK cells with the PD-1 antibody for 6 days induced CD3+CD56+ T cell expansion, with increases in the levels of CD107a and interferon γ (IFN-γ). Results When NK cells were co-cultured with 5 µg/mL of an anti-programmed death-ligand 1 (PD-L1) mAb for 24 hours at an effector cell: target ratio of 10:1, it led to more potent cytotoxicity compared to other time points and concentrations. However, combining NK cells with the anti-PD-L1 mAb showed no significant advantages over treatment with NK cells alone. Conclusions Our results suggest that combining CIK cells with PD-1 blockade before transfusion might improve the efficiency of CIK therapy for NSCLC patients. This effect does not seem to occur for NK cell therapy.
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Affiliation(s)
- Jingyi Chen
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Yusong Chen
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Fenglan Feng
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Cheng Chen
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Haikang Zeng
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Shuai Wen
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Xin Xu
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Jianxing He
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
| | - Jin Li
- State Key Laboratory of Respiratory Disease, the Thoracic Surgery Department, the First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510120, China
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Koustas E, Papavassiliou AG, Karamouzis MV. The role of autophagy in the treatment of BRAF mutant colorectal carcinomas differs based on microsatellite instability status. PLoS One 2018; 13:e0207227. [PMID: 30427914 PMCID: PMC6241137 DOI: 10.1371/journal.pone.0207227] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 10/27/2018] [Indexed: 02/05/2023] Open
Abstract
Autophagy has been identified as a catabolic mechanism in cells but its' role in cancer remains controversial. Autophagy has been characterized either as tumor suppressor or inducer mechanism in many tumor types. Monoclonal antibodies against EGFR (cetuximab and panitumumab) represent a major step in the treatment of mCRC. Several studies propose that cetuximab and panitumumab trigger autophagy which reveals a potential resistance mechanism to these agents. The last years immunotherapy appears to be a novel promising strategy for the treatment of patients with solid tumors, including colorectal cancer. Checkpoint inhibitors, such as anti-PD1 (nivolumab and pembrolizumab) and anti-CTLA-4 (ipilimumab) antibodies have already been developed and applied in mCRC patients with MSI-H phenotype. The association between mtBRAF and autophagy or MSI status has already been characterized. In our study, we identify the autophagy initiation through anti-EGFR monoclonal antibodies and checkpoint inhibitors in colorectal carcinoma cell lines according to microsatellite status. The combination of autophagy inhibition, anti-EGFR antibodies and checkpoint inhibitors as well as autophagy targeting, MEK inhibition and anti-EGFR antibodies or checkpoint inhibitors appears to be the best treatment approach for microsatellite instability high and stable colorectal cancer cell lines, respectively. Both combinatorial approaches reduce cell viability through the induction of apoptotic cell death. The findings of this study point out the importance of different approach for the treatment of BRAF mutant metastatic colorectal cancers based on their microsatelite instability phenotype.
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Affiliation(s)
- Evangelos Koustas
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Athanasios G. Papavassiliou
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Michalis V. Karamouzis
- Molecular Oncology Unit, Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- First Department of Internal Medicine, ‘Laiko’ General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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Wang Y, Wang H, Yao H, Li C, Fang JY, Xu J. Regulation of PD-L1: Emerging Routes for Targeting Tumor Immune Evasion. Front Pharmacol 2018; 9:536. [PMID: 29910728 PMCID: PMC5992436 DOI: 10.3389/fphar.2018.00536] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/03/2018] [Indexed: 12/16/2022] Open
Abstract
Immune checkpoint blockade therapies (ICBTs) targeting programmed cell death 1 (PD-1) and its ligand programmed death ligand-1 (PD-L1/B7-H1/CD274) have exhibited momentous clinical benefits and durable responses in multiple tumor types. However, primary resistance is found in considerable number of cancer patients, and most responders eventually develop acquired resistance to ICBT. To tackle these challenges, it is essential to understand how PD-L1 is controlled by cancer cells to evade immune surveillance. Recent research has shed new light into the mechanisms of PD-L1 regulation at genetic, epigenetic, transcriptional, translational, and posttranslational levels. In this work, we systematically discuss the mechanisms that control the gene amplification, epigenetic alteration, transcription, subcellular transportation and posttranscriptional modification of PD-L1 in cancer cells. We further categorize posttranscriptional PD-L1 regulations by the molecular modification of PD-L1, including glycosylation, phosphorylation, ubiquitination, deubiquitination, and lysosomal degradation. These findings may provide new routes for targeting tumor immune escape and catalyze the development of small molecular inhibitors of PD-L1 in addition to existing antibody drugs.
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Affiliation(s)
| | | | | | | | | | - Jie Xu
- MOH Key Laboratory of Gastroenterology and Hepatology, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Zhang J, Wang G, Zhou Y, Chen Y, Ouyang L, Liu B. Mechanisms of autophagy and relevant small-molecule compounds for targeted cancer therapy. Cell Mol Life Sci 2018; 75:1803-1826. [PMID: 29417176 PMCID: PMC11105210 DOI: 10.1007/s00018-018-2759-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/15/2018] [Accepted: 01/23/2018] [Indexed: 02/05/2023]
Abstract
Autophagy is an evolutionarily conserved, multi-step lysosomal degradation process for the clearance of damaged or superfluous proteins and organelles. Accumulating studies have recently revealed that autophagy is closely related to a variety of types of cancer; however, elucidation of its Janus role of either tumor-suppressive or tumor-promoting still remains to be discovered. In this review, we focus on summarizing the context-dependent role of autophagy and its complicated molecular mechanisms in different types of cancer. Moreover, we discuss a series of small-molecule compounds targeting autophagy-related proteins or the autophagic process for potential cancer therapy. Taken together, these findings would shed new light on exploiting the intricate mechanisms of autophagy and relevant small-molecule compounds as potential anti-cancer drugs to improve targeted cancer therapy.
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Affiliation(s)
- Jin Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Guan Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Yuxin Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
- College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yi Chen
- Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Liang Ouyang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Bo Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
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Díaz-Carballo D, Saka S, Klein J, Rennkamp T, Acikelli AH, Malak S, Jastrow H, Wennemuth G, Tempfer C, Schmitz I, Tannapfel A, Strumberg D. A Distinct Oncogenerative Multinucleated Cancer Cell Serves as a Source of Stemness and Tumor Heterogeneity. Cancer Res 2018; 78:2318-2331. [PMID: 29440172 DOI: 10.1158/0008-5472.can-17-1861] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 11/20/2017] [Accepted: 02/06/2018] [Indexed: 11/16/2022]
Abstract
The effects of anticancer treatments on cell heterogeneity and their proliferative potential play an important role in tumor persistence and metastasis. However, little is known about de-polyploidization, cell fate, and physiologic stemness of the resulting cell populations. Here, we describe a distinctive cell type termed "pregnant" P1 cells found within chemotherapy-refractory ovarian tumors, which generate and gestate daughter generation Gn cells intracytoplasmically. Release of Gn cells occurred by ejection through crevices in the P1 cell membrane by body contractions or using a funiculus-like structure. These events characterized a not yet described mechanism of cell segregation. Maternal P1 cells were principally capable of surviving parturition events and continued to breed and nurture Gn progenies. In addition, P1 cells were competent to horizontally transmit offspring Gn cells into other specific proximal cells, injecting them to receptor R1 cells via cell-cell tunneling. This process represents a new mechanism used by tumor cells to invade surrounding tissues and ensure life cycles. In contrast to the pregnant P1 cells with low expression of stem cell markers despite their physiologic stemness, the first offspring generations of daughter G1 cells expressed high levels of ovarian cancer stem cell markers. Furthermore, both P1 and Gn cells overexpressed multiple human endogenous retroviral envelope proteins. Moreover, programmed death-ligand 1 and the immunosuppressive domain of the retroviral envelope proteins were also overexpressed in P1 cells, suggesting effective protection against the host immune system. Together, our data suggest that P1 oncogenerative cancer cells exhibit a not yet described cell biological mechanism of persistence and transmission of malignant cells in patients with advanced cancers.Significance: P1 oncogenerative cell entities express low levels of CSC markers, which are characteristic of their histological origin. Cancer Res; 78(9); 2318-31. ©2018 AACR.
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Affiliation(s)
- David Díaz-Carballo
- Institute of Molecular Oncology and Experimental Therapeutics. Division of Haematology and Oncology, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany.
| | - Sahitya Saka
- Institute of Molecular Oncology and Experimental Therapeutics. Division of Haematology and Oncology, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany
| | - Jacqueline Klein
- Institute of Molecular Oncology and Experimental Therapeutics. Division of Haematology and Oncology, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany
| | - Tobias Rennkamp
- Institute of Molecular Oncology and Experimental Therapeutics. Division of Haematology and Oncology, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany
| | - Ali H Acikelli
- Institute of Molecular Oncology and Experimental Therapeutics. Division of Haematology and Oncology, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany
| | - Sascha Malak
- Institute of Molecular Oncology and Experimental Therapeutics. Division of Haematology and Oncology, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany
| | - Holger Jastrow
- Institute of Anatomy, University of Duisburg-Essen, Medical School, Essen, Germany
| | - Gunther Wennemuth
- Institute of Anatomy, University of Duisburg-Essen, Medical School, Essen, Germany
| | - Clemens Tempfer
- Gynaecology and Obstetrics, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany
| | - Inge Schmitz
- Institute of Pathology, Ruhr University Bochum, Medical School, Bochum, Germany
| | - Andrea Tannapfel
- Institute of Pathology, Ruhr University Bochum, Medical School, Bochum, Germany
| | - Dirk Strumberg
- Institute of Molecular Oncology and Experimental Therapeutics. Division of Haematology and Oncology, Marienhospital Herne, Ruhr University Bochum, Medical School, Herne, Germany
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The potentially conflicting cell autonomous and cell non-autonomous functions of autophagy in mediating tumor response to cancer therapy. Biochem Pharmacol 2018; 153:46-50. [PMID: 29408462 DOI: 10.1016/j.bcp.2018.01.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 01/31/2018] [Indexed: 12/22/2022]
Abstract
Autophagy, a virtually uniform response to external stress such as that induced by chemotherapy and radiation, is generally considered to be cytoprotective in function, providing a foundation for multiple clinical trials designed to enhance therapeutic response via autophagy inhibition. However, this cell autonomous response can also be cytotoxic or nonprotective, with the consequence that autophagy inhibition would be counterproductive or ineffective, respectively. The non-cell autonomous function of autophagy remains quite controversial, with evidence both for and against autophagy-mediated activation of the immune system. If autophagy inhibition antagonizes the immune response, this would likely interfere with the potential sensitization resulting from suppression of the cell autonomous protective function. An additional complication, which has rarely been considered, is the nature of the contribution of therapy-induced autophagy in the tumor microenvironment, particularly the tumor stroma. Taken together, it is likely that the outcome of the current clinical trials, whether positive or negative, will be difficult to interpret given the complexity of the role of autophagy relating to the tumor cell (cell autonomous), the immune system (cell non-autonomous) and the tumor microenvironment.
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Jensen-Jarolim E, Bax HJ, Bianchini R, Crescioli S, Daniels-Wells TR, Dombrowicz D, Fiebiger E, Gould HJ, Irshad S, Janda J, Josephs DH, Levi-Schaffer F, O'Mahony L, Pellizzari G, Penichet ML, Redegeld F, Roth-Walter F, Singer J, Untersmayr E, Vangelista L, Karagiannis SN. AllergoOncology: Opposite outcomes of immune tolerance in allergy and cancer. Allergy 2018; 73:328-340. [PMID: 28921585 PMCID: PMC6038916 DOI: 10.1111/all.13311] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2017] [Indexed: 12/11/2022]
Abstract
While desired for the cure of allergy, regulatory immune cell subsets and nonclassical Th2-biased inflammatory mediators in the tumour microenvironment can contribute to immune suppression and escape of tumours from immunological detection and clearance. A key aim in the cancer field is therefore to design interventions that can break immunological tolerance and halt cancer progression, whereas on the contrary allergen immunotherapy exactly aims to induce tolerance. In this position paper, we review insights on immune tolerance derived from allergy and from cancer inflammation, focusing on what is known about the roles of key immune cells and mediators. We propose that research in the field of AllergoOncology that aims to delineate these immunological mechanisms with juxtaposed clinical consequences in allergy and cancer may point to novel avenues for therapeutic interventions that stand to benefit both disciplines.
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Affiliation(s)
- E Jensen-Jarolim
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University Vienna, Vienna, Austria
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - H J Bax
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Hospital, London, UK
| | - R Bianchini
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University Vienna, Vienna, Austria
| | - S Crescioli
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
| | - T R Daniels-Wells
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - D Dombrowicz
- INSERM, CHU Lille, European Genomic Institute of Diabetes, Institut Pasteur de Lille, U1011 - Recepteurs Nucleaires, Maladies Cardiovasculaires et Diabete, Universite de Lille, Lille, France
| | - E Fiebiger
- Division of Gastroenterology, Hepatology and Nutrition Research, Department Medicine Research, Childrens' University Hospital Boston, Boston, MA, USA
| | - H J Gould
- Randall Division of Cell and Molecular Biophysics, King's College London, London, UK
| | - S Irshad
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- Breast Cancer Now Unit, School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Cancer Centre, London, UK
| | - J Janda
- Faculty of Science, Charles University, Prague, Czech Republic
| | - D H Josephs
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Hospital, London, UK
| | - F Levi-Schaffer
- Faculty of Medicine, Pharmacology and Experimental Therapeutics Unit, The Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - L O'Mahony
- Molecular Immunology, Swiss Institute of Allergy and Asthma Research, Davos, Switzerland
| | - G Pellizzari
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Hospital, London, UK
| | - M L Penichet
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Centre, University of California, Los Angeles, CA, USA
| | - F Redegeld
- Faculty of Science, Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, the Netherlands
| | - F Roth-Walter
- The Interuniversity Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University Vienna, University Vienna, Vienna, Austria
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - J Singer
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - E Untersmayr
- Centre of Pathophysiology, Infectiology & Immunology, Institute of Pathophysiology & Allergy Research, Medical University Vienna, Vienna, Austria
| | - L Vangelista
- Department of Biomedical Sciences, Nazarbayev University School of Medicine, Astana, Kazakhstan
| | - S N Karagiannis
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, Guy's Hospital, London, UK
- Breast Cancer Now Unit, School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Cancer Centre, London, UK
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Di Fazio P, Matrood S. Targeting autophagy in liver cancer. Transl Gastroenterol Hepatol 2018; 3:39. [PMID: 30148224 PMCID: PMC6088143 DOI: 10.21037/tgh.2018.06.09] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 06/27/2018] [Indexed: 02/05/2023] Open
Abstract
Autophagy is a catabolic cellular process conserved in animals. It is characterized by the main role of recycling all the non-functional products of the cells. Once, autophagy players detect non-functioning sub-cellular organelles and proteins, they start the so-called nucleation process. The organelles will be surrounded by a double membrane vesicle mainly constituted by endoplasmic reticulum (ER) membrane and autophagy proteins, e.g., MAP1LC3B, Beclin-1, VPS34, Unc-51 like autophagy activating kinase (ULK1) and ubiquitination-related proteins. Then the autophagic membrane will go through an elongation phase involving additional autophagy players. Once the autophagic vesicle is complete, the sub-cellular organelles will be isolated from the rest of the cytosol and driven to the final fusion with lysosomes. Here, the digestion process will end. Alteration and or impairment of autophagy have been shown to be correlated with development of diseases affecting the central nervous system, e.g., Alzheimer and other neurodegenerative diseases. Nonetheless, autophagy defect is responsible for tumorigenesis in blood and solid malignancies, in particular liver cancer. Malignancies of the liver are determined by several genetics and epigenetics mechanisms triggering the up-regulation of survival mechanisms and resistance to cell death. Furthermore, liver cancer could result from pathologic conditions like cirrhosis and fibrosis related to virus infection, aflatoxin, alcohol consumption and high fat diet together with insulin resistance. The role exerted by autophagy in the pathogenesis of the liver and tumor development has been evidenced in recent years. The alteration of autophagy assumes a fundamental role for liver tumorigenesis determining an accumulation of non-functional proteins and organelles that trigger oxidative stress leading to genotoxic stress and gene alterations. Furthermore, the absence of this degradation mechanism could prompt the cells to alter their metabolic status and turn into malignant cells. Interestingly, the heterozygous loss of function of Beclin-1 is able to trigger liver tumorigenesis or even the simple accumulation of proteins caused by the block of the final autolysosome fusion and degradation process is responsible for liver cancer development. This review highlights the importance of targeting the autophagy process in liver cancer in order to restore its function and to promote autophagy-mediated cell demise.
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Affiliation(s)
- Pietro Di Fazio
- Department of Visceral Thoracic and Vascular Surgery, Philipps University Marburg, Baldingerstrasse, Marburg, Germany
| | - Sami Matrood
- Department of Visceral Thoracic and Vascular Surgery, Philipps University Marburg, Baldingerstrasse, Marburg, Germany
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Niu L, Liu L, Yang S, Ren J, Lai PBS, Chen GG. New insights into sorafenib resistance in hepatocellular carcinoma: Responsible mechanisms and promising strategies. Biochim Biophys Acta Rev Cancer 2017; 1868:564-570. [PMID: 29054475 DOI: 10.1016/j.bbcan.2017.10.002] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/04/2017] [Accepted: 10/15/2017] [Indexed: 02/06/2023]
Abstract
It is disappointing that only a few patients with hepatocellular carcinoma (HCC) obtain a significant survival benefit from the sorafenib treatment, which is currently regarded as a first-line chemotherapeutic therapy in patients with advanced HCC. Most patients are highly refractory to this therapy. Therefore, it is necessary to identify resistant factors and explore potential protocols that can be used to overcome the resistance or substitute sorafenib once the resistance is formed. In fact, a growing body of studies has been focusing on the resistance mechanisms or the method to overcome it. The limitation of sorafenib efficacy has been partially but not fully elucidated. Moreover, some protocols have shown encouraging outcomes but still need to be further verified in clinical trials. In this review, we summarize the recent findings on the potential mechanisms that contribute to sorafenib resistance and discuss strategies that can be used to improve the treatment outcome.
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Affiliation(s)
- Leilei Niu
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China; Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, China
| | - Liping Liu
- Department of Hepatobiliary and Pancreas Surgery, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, Guangdong Province, China
| | - Shengli Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jianwei Ren
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Paul B S Lai
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China.
| | - George G Chen
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, China; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
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