51
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Yang F, Li H, Li Y, Hao Y, Wang C, Jia P, Chen X, Ma S, Xiao Z. Crosstalk between hepatic stellate cells and surrounding cells in hepatic fibrosis. Int Immunopharmacol 2021; 99:108051. [PMID: 34426110 DOI: 10.1016/j.intimp.2021.108051] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/28/2021] [Accepted: 08/04/2021] [Indexed: 02/08/2023]
Abstract
Hepatic fibrosis represents as a dynamic pathological process characterized by the net accumulation of extracellular matrix in the progression of various chronic liver diseases, including viral hepatitis, alcoholic liver disease, and metabolic associated fatty liver disease (MAFLD). Activation of hepatic stellate cells (HSCs) is well-defined to play a central role in the initiation and progression of hepatic fibrosis. However, the activation of HSCs is affected by the complicated microenvironments in liver, which largely attributes to the communication between hepatocytes and multiple tissue-resident cells, including sinusoidal endothelial cells, bile duct epithelial cells, platelets, T cells, B cells, macrophages, natural killer cells, neutrophils, dendritic cells, in the direct or indirect mechanisms. Cellular crosstalk between HSCs and surrounding cells contributes to the activation of HSCs and the progression of hepatic fibrosis. Currently, accumulating evidence have proven the complexity and plasticity of HSCs activation, and further clarification of cellular communication between HSCs and surrounding cells will provide sufficient clue to the development of novel diagnostic methods and therapeutic strategies for hepatic fibrosis.
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Affiliation(s)
- Fangming Yang
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Heng Li
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yanmin Li
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Yaokun Hao
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Chenxiao Wang
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Pan Jia
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Xinju Chen
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.
| | - Suping Ma
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.
| | - Zhun Xiao
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.
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52
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Zhang Q, Yang X, Liu H. Extracellular Vesicles in Cancer Metabolism: Implications for Cancer Diagnosis and Treatment. Technol Cancer Res Treat 2021; 20:15330338211037821. [PMID: 34427131 PMCID: PMC8388228 DOI: 10.1177/15330338211037821] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Metabolic reprogramming is one of the most common characteristics of cancer cells. The metabolic alterations of glucose, amino acids and lipids can support the aggressive phenotype of cancer cells. Exosomes, a kind of extracellular vesicles, participate in the intercellular communication through transferring bioactive molecules. Increasing evidence has demonstrated that enzymes, metabolites and non-coding RNAs in exosomes are responsible for the metabolic alteration of cancer cells. In this review, we summarize the past and recent findings of exosomes in altering cancer metabolism and elaborate on the role of the specific enzymes, metabolites and non-coding RNAs transferred by exosomes. Moreover, we give evidence of the role of exosomes in cancer diagnosis and treatment. Finally, we discuss the existing problems in the study and application of exosomes in cancer diagnosis and treatment.
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Affiliation(s)
- Qian Zhang
- Department of Clinical Laboratory, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiangling Yang
- Department of Clinical Laboratory, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Huanliang Liu
- Department of Clinical Laboratory, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Institute of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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53
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Zheng S, Liu Q, Liu T, Lu X. Posttranslational modification of pyruvate kinase type M2 (PKM2): novel regulation of its biological roles to be further discovered. J Physiol Biochem 2021; 77:355-363. [PMID: 33835423 DOI: 10.1007/s13105-021-00813-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 04/01/2021] [Indexed: 11/28/2022]
Abstract
PKM2, pyruvate kinase type M2, has been shown to play a key role in aerobic glycolysis and to regulate the malignant behaviors of cancer cells. Recently, PKM2 has been revealed to hold dual metabolic and nonmetabolic roles. Working as both a pyruvate kinase with catalytic activity and a protein kinase that phosphorylates its substrates, PKM2 stands at the crossroads of glycolysis and tumor growth. Recently, it was revealed that the catalytic activity of PKM2 can be regulated by its posttranslational modification (PTM). Several PTM types, including phosphorylation, methylation, acetylation, oxidation, hydroxylation, succinylation, and glycylation, have been gradually identified on different amino acid residues of the PKM2 coding sequence. In this review, we highlight the recent advancements in understanding PKM2 PTMs and the regulatory roles conferred by PTMs during anaerobic glycolysis in tumors.
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Affiliation(s)
- Shutao Zheng
- Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, People's Republic of China
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Urumqi, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Qing Liu
- Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, People's Republic of China
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Urumqi, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Tao Liu
- Department of Clinical Laboratory, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region, People's Republic of China
| | - Xiaomei Lu
- Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, People's Republic of China.
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, Urumqi, Xinjiang Uygur Autonomous Region, People's Republic of China.
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54
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Extracellular Vesicles in Organ Fibrosis: Mechanisms, Therapies, and Diagnostics. Cells 2021; 10:cells10071596. [PMID: 34202136 PMCID: PMC8305303 DOI: 10.3390/cells10071596] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 02/06/2023] Open
Abstract
Fibrosis is the unrelenting deposition of excessively large amounts of insoluble interstitial collagen due to profound matrigenic activities of wound-associated myofibroblasts during chronic injury in diverse tissues and organs. It is a highly debilitating pathology that affects millions of people globally and leads to decreased function of vital organs and increased risk of cancer and end-stage organ disease. Extracellular vesicles (EVs) produced within the chronic wound environment have emerged as important vehicles for conveying pro-fibrotic signals between many of the cell types involved in driving the fibrotic response. On the other hand, EVs from sources such as stem cells, uninjured parenchymal cells, and circulation have in vitro and in vivo anti-fibrotic activities that have provided novel and much-needed therapeutic options. Finally, EVs in body fluids of fibrotic individuals contain cargo components that may have utility as fibrosis biomarkers, which could circumvent current obstacles to fibrosis measurement in the clinic, allowing fibrosis stage, progression, or regression to be determined in a manner that is accurate, safe, minimally-invasive, and conducive to repetitive testing. This review highlights the rapid and recent progress in our understanding of EV-mediated fibrotic pathogenesis, anti-fibrotic therapy, and fibrosis staging in the lung, kidney, heart, liver, pancreas, and skin.
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55
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Kang M, Jordan V, Blenkiron C, Chamley LW. Biodistribution of extracellular vesicles following administration into animals: A systematic review. J Extracell Vesicles 2021; 10:e12085. [PMID: 34194679 PMCID: PMC8224174 DOI: 10.1002/jev2.12085] [Citation(s) in RCA: 161] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 08/13/2020] [Accepted: 09/13/2020] [Indexed: 12/17/2022] Open
Abstract
In recent years, attention has turned to examining the biodistribution of EVs in recipient animals to bridge between knowledge of EV function in vitro and in vivo. We undertook a systematic review of the literature to summarize the biodistribution of EVs following administration into animals. There were time-dependent changes in the biodistribution of small-EVs which were most abundant in the liver. Detection peaked in the liver and kidney in the first hour after administration, while distribution to the lungs and spleen peaked between 2-12 h. Large-EVs were most abundant in the lungs with localization peaking in the first hour following administration and decreased between 2-12 h. In contrast, large-EV localization to the liver increased as the levels in the lungs decreased. There was moderate to low localization of large-EVs to the kidneys while localization to the spleen was typically low. Regardless of the origin or size of the EVs or the recipient species into which the EVs were administered, the biodistribution of the EVs was largely to the liver, lungs, kidneys, and spleen. There was extreme variability in the methodology between studies and we recommend that guidelines should be developed to promote standardization where possible of future EV biodistribution studies.
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Affiliation(s)
- Matthew Kang
- Department of Obstetrics and GynaecologyUniversity of AucklandAucklandNew Zealand
| | - Vanessa Jordan
- Department of Obstetrics and GynaecologyUniversity of AucklandAucklandNew Zealand
| | - Cherie Blenkiron
- Department of Obstetrics and GynaecologyUniversity of AucklandAucklandNew Zealand
- Molecular Medicine and PathologyUniversity of AucklandAucklandNew Zealand
| | - Lawrence W. Chamley
- Department of Obstetrics and GynaecologyUniversity of AucklandAucklandNew Zealand
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Khanam A, Saleeb PG, Kottilil S. Pathophysiology and Treatment Options for Hepatic Fibrosis: Can It Be Completely Cured? Cells 2021; 10:cells10051097. [PMID: 34064375 PMCID: PMC8147843 DOI: 10.3390/cells10051097] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 04/26/2021] [Accepted: 05/01/2021] [Indexed: 12/14/2022] Open
Abstract
Hepatic fibrosis is a dynamic process that occurs as a wound healing response against liver injury. During fibrosis, crosstalk between parenchymal and non-parenchymal cells, activation of different immune cells and signaling pathways, as well as a release of several inflammatory mediators take place, resulting in inflammation. Excessive inflammation drives hepatic stellate cell (HSC) activation, which then encounters various morphological and functional changes before transforming into proliferative and extracellular matrix (ECM)-producing myofibroblasts. Finally, enormous ECM accumulation interferes with hepatic function and leads to liver failure. To overcome this condition, several therapeutic approaches have been developed to inhibit inflammatory responses, HSC proliferation and activation. Preclinical studies also suggest several targets for the development of anti-fibrotic therapies; however, very few advanced to clinical trials. The pathophysiology of hepatic fibrosis is extremely complex and requires comprehensive understanding to identify effective therapeutic targets; therefore, in this review, we focus on the various cellular and molecular mechanisms associated with the pathophysiology of hepatic fibrosis and discuss potential strategies to control or reverse the fibrosis.
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Affiliation(s)
- Arshi Khanam
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| | - Paul G. Saleeb
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| | - Shyam Kottilil
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
- Correspondence: ; Tel.: +1-410-706-4872
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Cai J, Hu M, Chen Z, Ling Z. The roles and mechanisms of hypoxia in liver fibrosis. J Transl Med 2021; 19:186. [PMID: 33933107 PMCID: PMC8088569 DOI: 10.1186/s12967-021-02854-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 04/21/2021] [Indexed: 02/06/2023] Open
Abstract
Liver fibrosis occurs in response to any etiology of chronic liver injury. Lack of appropriate clinical intervention will lead to liver cirrhosis or hepatocellular carcinoma (HCC), seriously affecting the quality of life of patients, but the current clinical treatments of liver fibrosis have not been developed yet. Recent studies have shown that hypoxia is a key factor promoting the progression of liver fibrosis. Hypoxia can cause liver fibrosis. Liver fibrosis can, in turn, profoundly further deepen the degree of hypoxia. Therefore, exploring the role of hypoxia in liver fibrosis will help to further understand the process of liver fibrosis, and provide the theoretical basis for its diagnosis and treatment, which is of great significance to avoid further deterioration of liver diseases and protect the life and health of patients. This review highlights the recent advances in cellular and molecular mechanisms of hypoxia in developments of liver fibrosis.
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Affiliation(s)
- Jingyao Cai
- Department of Laboratory Medicine, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Min Hu
- Department of Laboratory Medicine, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China.
| | - Zhiyang Chen
- Department of Laboratory Medicine, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Zeng Ling
- Department of Laboratory Medicine, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China
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58
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Srivatsav AT, Kapoor S. The Emerging World of Membrane Vesicles: Functional Relevance, Theranostic Avenues and Tools for Investigating Membrane Function. Front Mol Biosci 2021; 8:640355. [PMID: 33968983 PMCID: PMC8101706 DOI: 10.3389/fmolb.2021.640355] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/26/2021] [Indexed: 12/12/2022] Open
Abstract
Lipids are essential components of cell membranes and govern various membrane functions. Lipid organization within membrane plane dictates recruitment of specific proteins and lipids into distinct nanoclusters that initiate cellular signaling while modulating protein and lipid functions. In addition, one of the most versatile function of lipids is the formation of diverse lipid membrane vesicles for regulating various cellular processes including intracellular trafficking of molecular cargo. In this review, we focus on the various kinds of membrane vesicles in eukaryotes and bacteria, their biogenesis, and their multifaceted functional roles in cellular communication, host-pathogen interactions and biotechnological applications. We elaborate on how their distinct lipid composition of membrane vesicles compared to parent cells enables early and non-invasive diagnosis of cancer and tuberculosis, while inspiring vaccine development and drug delivery platforms. Finally, we discuss the use of membrane vesicles as excellent tools for investigating membrane lateral organization and protein sorting, which is otherwise challenging but extremely crucial for normal cellular functioning. We present current limitations in this field and how the same could be addressed to propel a fundamental and technology-oriented future for extracellular membrane vesicles.
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Affiliation(s)
- Aswin T. Srivatsav
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
| | - Shobhna Kapoor
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
- Wadhwani Research Center of Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
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59
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Zhu S, Guo Y, Zhang X, Liu H, Yin M, Chen X, Peng C. Pyruvate kinase M2 (PKM2) in cancer and cancer therapeutics. Cancer Lett 2021; 503:240-248. [PMID: 33246091 DOI: 10.1016/j.canlet.2020.11.018] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/12/2020] [Accepted: 11/15/2020] [Indexed: 02/07/2023]
Abstract
Pyruvate kinase M2 (PKM2), a key rate-limiting enzyme of glycolysis, is a critical regulator in tumor metabolism. PKM2 has been demonstrated to overexpressed in various cancers and promoted proliferation and metastasis of tumor cells. The errant expression of PKM2 has inspired people to investigate the function of PKM2 and the therapeutic potential in cancer. In addition, some studies have shown that the upregulation of PKM2 in tumor tissues is associated with the altered expression of lncRNAs and the poor survival. Therefore, researchers have begun to unravel the specific molecular mechanisms of lncRNA-mediated PKM2 expression in cancer metabolism. As the tumor microenvironment (TME) is essential in tumor development, it is necessary to identify the role of PKM2 in TME. In this review, we will introduce the role of PKM2 in different cancers as well as TME, and summarize the molecular mechanism of PKM2-related lncRNAs in cancer metabolism. We expect that this work will lead to a better understanding of the molecular mechanisms of PKM2 that may help in developing therapeutic strategies in clinic for researchers.
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Affiliation(s)
- Susi Zhu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China; Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China; Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yeye Guo
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China; Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China; Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xu Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China; Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China; Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hong Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China; Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China; Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mingzhu Yin
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China; Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China; Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China; Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China; Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, China; Hunan Engineering Research Center of Skin Health and Disease, Changsha, Hunan, China; Xiangya Clinical Research Center for Cancer Immunotherapy, Central South University, Changsha, Hunan, China; Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Abstract
Hepatic stellate cells (HSCs) are resident non-parenchymal liver pericytes whose plasticity enables them to regulate a remarkable range of physiologic and pathologic responses. To support their functions in health and disease, HSCs engage pathways regulating carbohydrate, mitochondrial, lipid, and retinoid homeostasis. In chronic liver injury, HSCs drive hepatic fibrosis and are implicated in inflammation and cancer. To do so, the cells activate, or transdifferentiate, from a quiescent state into proliferative, motile myofibroblasts that secrete extracellular matrix, which demands rapid adaptation to meet a heightened energy need. Adaptations include reprogramming of central carbon metabolism, enhanced mitochondrial number and activity, endoplasmic reticulum stress, and liberation of free fatty acids through autophagy-dependent hydrolysis of retinyl esters that are stored in cytoplasmic droplets. As an archetype for pericytes in other tissues, recognition of the HSC's metabolic drivers and vulnerabilities offer the potential to target these pathways therapeutically to enhance parenchymal growth and modulate repair.
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Affiliation(s)
- Parth Trivedi
- Division of Liver Diseases, The Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Shuang Wang
- Division of Liver Diseases, The Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Scott L Friedman
- Division of Liver Diseases, The Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Stefanius K, Servage K, Orth K. Exosomes in cancer development. Curr Opin Genet Dev 2021; 66:83-92. [PMID: 33477017 DOI: 10.1016/j.gde.2020.12.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/15/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023]
Abstract
Exosomes are secreted small extracellular vesicles (EVs) packaged with diverse biological cargo. They mediate complex intercellular communications among cells in maintenance of normal physiology or to trigger profound disease progression. Increasing numbers of studies have identified exosome-mediated functions contributing to cancer progression, including roles in paracrine cell-to-cell communication, stromal reprogramming, angiogenesis, and immune responses. Despite the growing body of knowledge, the specific role of exosomes in mediating pre-cancerous conditions is not fully understood and their ability to transform a healthy cell is still controversial. Here we review recent studies describing functions attributed to exosomes in different stages of carcinogenesis. We also explore how exosomes ultimately contribute to the progression of a primary tumor to metastatic disease.
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Affiliation(s)
- Karoliina Stefanius
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, United States; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, United States.
| | - Kelly Servage
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, United States; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Kim Orth
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, United States; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, United States; Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX, United States
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62
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Activation of hypoxia-inducible factor 1 (Hif-1) enhanced bactericidal effects of macrophages to Mycobacterium tuberculosis. Tuberculosis (Edinb) 2021; 126:102044. [PMID: 33383382 DOI: 10.1016/j.tube.2020.102044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 11/29/2020] [Accepted: 12/20/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND Tuberculosis is chronic infection caused by Mycobacterium tuberculosis (M.tb), which infects specifically macrophages. Hif-1, hypoxia-inducible factor-1, was reported to act as master regulator of killing functions in macrophages. AIM To investigate whether Hif-1 activation would enhance bactericidal effect of macrophages and anti-tuberculosis effect of chemical reagent. METHODS Hif-1 and LC3B were detected in tissues from pulmonary tuberculosis. U937, human monocytic leukemia cell line, was stimulated with PMA and differentiated into macrophages. Cells were pretreated with Hif-1 chemical inhibitor YC-1, stimulated with CoCl2 (Hif-1 activator), to detect LC3B with Western blot and confocal microscopy. Cells were infected with M. tb H37Rv strain, stimulated with CoCl2, following rifampine treatment. Expression of autophagy markers was detected using Western blot. IL-6 and TNF-α were detected in cell supernatant with ELISA. Acid-fast staining and CFU assay were performed to evaluate intracellular bacterial load. RESULTS AND CONCLUSIONS Hif-1 and LC3B increased in tissues of pulmonary tuberculosis. Hif-1 activation enhanced autophagy in M. tb infected U937 cells and production of IL-6 and TNF-α. Data from acid-fast staining and CFU indicated that Hif-1 activation enhanced anti-tuberculosis effect of rifampine in macrophages. Conclusively, to activate Hif-1 would strengthen bactericidal effect of macrophages, to further enhance anti-tuberculosis effect of chemical reagent.
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63
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Liu J, Xie Y, Cui Z, Xia T, Wan L, Zhou H, Zhang P, Zhang Y, Guan F, Liu W, Shi C. Bnip3 interacts with vimentin, an intermediate filament protein, and regulates autophagy of hepatic stellate cells. Aging (Albany NY) 2020; 13:957-972. [PMID: 33290258 PMCID: PMC7834981 DOI: 10.18632/aging.202211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 09/09/2020] [Indexed: 04/21/2023]
Abstract
Bnip3, which is regulated by Hif-1 in cells under oxygen deprivation, is a death related protein associated with autophagy and apoptosis. Hif-1 was reported to regulate autophagy to activate hepatic stellate cells (HSCs), while the specific molecular mechanism is vague. The possible mechanism of Hif-1 regulating autophagy of HSCs via Bnip3 was explored in this study. Bnip3 was detected in fibrotic liver tissues from humans and mice. Hif-1 was inhibited by chemical inhibitor and Bnip3 was detected in activated HSCs. The co-localization of Bnip3 and LC3B was captured by confocal microscopy and autophagic flow was assessed in Bnip3 siRNA transfected cells. Bnip3 interacted proteins were screened with mass spectrometry. The interaction of Bnip3 and vimentin was detected with co-immunoprecipitation and confocal microscopy. The results showed that Bnip3 was increased in fibrotic liver tissues and activated HSCs. Hif-1 inhibition suppressed Bnip3 expression in activated HSCs. Bnip3 was partially co-localized with autophagosomes and Bnip3 inhibition suppessed autophagy in activated HSCs. Bnip3 interacted with vimentin and Bnip3 expression was inhibited as vimentin was inhibited in activated HSCs. Conclusively, this study indicated that Bnip3 promoted autophagy and activation of HSCs, via interacting with vimentin, an intermediate filament protein with highly abundant expression in HSCs.
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Affiliation(s)
- Jie Liu
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
- Department of Hospital Infection Management, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Yuyu Xie
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Zhangbo Cui
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Tian Xia
- Department of Surgery, Wuhan Third Hospital, Wuhan, PR China
| | - Lu Wan
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Haifeng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Peng Zhang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Yijie Zhang
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Fei Guan
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Wenqi Liu
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Chunwei Shi
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
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Jiao Y, Xu P, Shi H, Chen D, Shi H. Advances on liver cell-derived exosomes in liver diseases. J Cell Mol Med 2020; 25:15-26. [PMID: 33247543 PMCID: PMC7810930 DOI: 10.1111/jcmm.16123] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 12/12/2022] Open
Abstract
Exosomes are extracellular vesicles with diameters ranging from 30 to 150 nm, which contain several donor cell‐associated proteins as well as mRNA, miRNA, and lipids and coordinate multiple physiological and pathological functions through horizontal communication between cells. Almost all types of liver cells, such as hepatocytes and Kupffer cells, are exosome‐releasing and/or exosome‐targeted cells. Exosomes secreted by liver cells play an important role in regulating general physiological functions and also participate in the onset and development of liver diseases, including liver cancer, liver injury, liver fibrosis and viral hepatitis. Liver cell‐derived exosomes carry liver cell‐specific proteins and miRNAs, which can be used as diagnostic biomarkers and treatment targets of liver disease. This review discusses the functions of exosomes derived from different liver cells and provides novel insights based on the latest developments regarding the roles of exosomes in the diagnosis and treatment of liver diseases.
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Affiliation(s)
- Yan Jiao
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer, Beijing, China
| | - Ping Xu
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer, Beijing, China
| | - Honglin Shi
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer, Beijing, China
| | - Dexi Chen
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer, Beijing, China
| | - Hongbo Shi
- Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer, Beijing, China
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ASK1 Enhances Angiotensin II-Induced Liver Fibrosis In Vitro by Mediating Endoplasmic Reticulum Stress-Dependent Exosomes. Mediators Inflamm 2020; 2020:8183713. [PMID: 33223956 PMCID: PMC7669360 DOI: 10.1155/2020/8183713] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 09/04/2020] [Accepted: 09/16/2020] [Indexed: 01/16/2023] Open
Abstract
Background Apoptosis signal-regulating kinase 1 (ASK1) has been reported to induce fibrotic signaling in the setting of oxidative stress. However, the role of ASK1 and its mechanism of action in angiotensin II- (Ang II-) induced liver fibrosis remain largely unknown. Methods Human hepatic LX-2 stellate cells were treated with Ang II alone or cotreated with Ang II plus an ASK1 inhibitor (GS-4997) or siRNA-targeting ASK1. Immunofluorescent staining, real-time PCR, and western blotting were used to determine the expressionof α-SMA, Col I, and Col III expression. Cell viability was assessed by the CCK-8 assay. The concentrations of IL-1β, IL-18, and TNF-α in conditioned medium were determined by ELISA. The levels of intracellular ROS in LX-2 cells were analyzed using a ROS assay kit. Exosome size was determined by electron microscopy. Results Ang II markedly increased the expression of extracellular matrix (ECM) proteins (α-SMA, Col I, and Col III) and proinflammatory cytokines (IL-1β, IL-18, and TNF-α). Ang II also increased the expression of endoplasmic reticulum stress (ERS) markers (GRP78, p-PERK, and CHOP) and p-ASK1. Results also showed that pretreatment with GS-4997 or siRNA could abolish all the abovementioned effects on LX-2 cells. Furthermore, we found that exosome release caused by ASK1-mediated ERS was involved in the activation of LX-2 cells by Ang II. The activation of LX-2 cells could be blocked by treating the exosomes with annexin. Conclusions In summary, we found that ASK1 mediates Ang II-activated ERS in HSCs and the subsequent activation of HSCs, suggesting a promising strategy for treating liver fibrosis.
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Zheng D, Jiang Y, Qu C, Yuan H, Hu K, He L, Chen P, Li J, Tu M, Lin L, Chen H, Lin Z, Lin W, Fan J, Cheng G, Hong J. Pyruvate Kinase M2 Tetramerization Protects against Hepatic Stellate Cell Activation and Liver Fibrosis. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:2267-2281. [PMID: 32805235 PMCID: PMC7786052 DOI: 10.1016/j.ajpath.2020.08.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023]
Abstract
Liver fibrosis is an increasing health problem worldwide, for which no effective antifibrosis drugs are available. Although the involvement of aerobic glycolysis in hepatic stellate cell (HSC) activation has been reported, the role of pyruvate kinase M2 (PKM2) in liver fibrogenesis still remains unknown. We examined PKM2 expression and location in liver tissues and primary hepatic cells. The in vitro and in vivo effects of a PKM2 antagonist (shikonin) and its allosteric agent (TEPP-46) on liver fibrosis were investigated in HSCs and liver fibrosis mouse model. Chromatin immunoprecipitation sequencing and immunoprecipitation were performed to identify the relevant molecular mechanisms. PKM2 expression was significantly up-regulated in both mouse and human fibrotic livers compared with normal livers, and mainly detected in activated, rather than quiescent, HSCs. PKM2 knockdown markedly inhibited the activation and proliferation of HSCs in vitro. Interestingly, the PKM2 dimer, rather than the tetramer, induced HSC activation. PKM2 tetramerization induced by TEPP-46 effectively inhibited HSC activation, reduced aerobic glycolysis, and decreased MYC and CCND1 expression via regulating histone H3K9 acetylation in activated HSCs. TEPP-46 and shikonin dramatically attenuated liver fibrosis in vivo. Our findings demonstrate a nonmetabolic role of PKM2 in liver fibrosis. PKM2 tetramerization or suppression could prevent HSC activation and protects against liver fibrosis.
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Affiliation(s)
- Dandan Zheng
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yuchuan Jiang
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Chen Qu
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Hui Yuan
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Kaishun Hu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lu He
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Peng Chen
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jinying Li
- Department of Gastroenterology, the First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Mengxian Tu
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Lehang Lin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hengxing Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zelong Lin
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Wenyu Lin
- Gastrointestinal Unit, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jun Fan
- Departments of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
| | - Guohua Cheng
- Department of Pharmacy, College of Pharmacy, Jinan University, Guangzhou, China
| | - Jian Hong
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China; Pathophysiology, School of Medicine, Jinan University, Guangzhou, China.
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Yang E, Wang X, Gong Z, Yu M, Wu H, Zhang D. Exosome-mediated metabolic reprogramming: the emerging role in tumor microenvironment remodeling and its influence on cancer progression. Signal Transduct Target Ther 2020; 5:242. [PMID: 33077737 PMCID: PMC7572387 DOI: 10.1038/s41392-020-00359-5] [Citation(s) in RCA: 182] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/11/2020] [Accepted: 09/27/2020] [Indexed: 02/07/2023] Open
Abstract
Metabolic reprogramming is reported to be one of the hallmarks of cancer, which is an adaptive mechanism by which fast-growing cancer cells adapt to their increasing energy demands. Recently, extracellular vesicles (EVs) known as exosomes have been recognized as crucial signaling mediators in regulating the tumor microenvironment (TME). Meanwhile, the TME is a highly heterogeneous ecosystem incorporating cancer cells, fibroblasts, adipocytes, endothelial cells, mesenchymal stem cells, and extracellular matrix. Accumulated evidence indicates that exosomes may transfer biologically functional molecules to the recipient cells, which facilitate cancer progression, angiogenesis, metastasis, drug resistance, and immunosuppression by reprogramming the metabolism of cancer cells and their surrounding stromal cells. In this review, we present the role of exosomes in the TME and the underlying mechanism of how exosomes exacerbate tumor development through metabolic reprogramming. In addition, we will also discuss the potential role of exosomes targeting metabolic process as biomarkers for tumor diagnosis and prognosis, and exosomes-mediated metabolic reprogramming as potential targets for cancer therapy. Furthermore, a better understanding of the link between exosomes and metabolic reprogramming, and their impact on cancer progression, would provide novel insights for cancer prevention and treatment in the future.
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Affiliation(s)
- Enli Yang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, 250021, Jinan, China.,Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, 250021, Jinan, China
| | - Xuan Wang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, 250021, Jinan, China.,Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, 250021, Jinan, China
| | - Zhiyuan Gong
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, 250021, Jinan, China.,Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, 250021, Jinan, China
| | - Miao Yu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, 250021, Jinan, China.,Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, 250021, Jinan, China
| | - Haiwei Wu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, 250021, Jinan, China. .,Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, 250021, Jinan, China.
| | - Dongsheng Zhang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwu Road, 250021, Jinan, China. .,Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, 250021, Jinan, China.
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Wada Y, Morine Y, Imura S, Ikemoto T, Saito Y, Takasu C, Yamada S, Shimada M. HIF-1α expression in liver metastasis but not primary colorectal cancer is associated with prognosis of patients with colorectal liver metastasis. World J Surg Oncol 2020; 18:241. [PMID: 32895059 PMCID: PMC7487629 DOI: 10.1186/s12957-020-02012-5] [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: 07/02/2020] [Accepted: 08/24/2020] [Indexed: 02/08/2023] Open
Abstract
Background The role of hypoxia-inducible factor-1α (HIF-1α) in primary colorectal cancer (CRC) and colorectal liver metastasis (CRLM) has remained unclear. The aim of this study was to investigate HIF-1α expression and its association with prognosis in patients with CRLM with a focus on hepatic stellate cells (HSCs). Methods Colon cancer cells were cultured in HSC-conditioned medium (CM), and HIF-1α expression and cell migration were analyzed. Seventy-five patients with CRLM who underwent an initial curative hepatectomy were enrolled. We examined HIF-1α expressions and patient prognosis between primary CRCs and the matched liver metastatic specimens. Results Activated HSCs induced HIF-1α mRNA and protein expression in colon cancer cells (p < 0.01) and promoted cell migration (p < 0.01). The positive rates of HIF-1α expression in primary CRCs and liver metastases were 68.0 and 72.0%, respectively. There were no differences in overall (OS) and disease-free survival (DFS) of HIF-1α expression in primary CRC. However, HIF-1α expression in liver metastasis correlated to poor prognosis in both OS and DFS. Furthermore, patients with HIF-1α positive expression in liver metastasis had poor prognosis. Conclusion HIF-1α expression in liver metastasis determines poor prognosis of CRLM patients. HSCs might play a key role in aggressive phenotypes of tumor cells.
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Affiliation(s)
- Yuma Wada
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yuji Morine
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan.
| | - Satoru Imura
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Tetsuya Ikemoto
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yu Saito
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Chie Takasu
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Shinichiro Yamada
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Mitsuo Shimada
- Department of Surgery, Institute of Health Biosciences, The University of Tokushima Graduate School, 3-18-15, Kuramoto-cho, Tokushima, 770-8503, Japan
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Liu B, Song M, Qin H, Zhang B, Liu Y, Sun Y, Ma Y, Shi T. Phosphoribosyl Pyrophosphate Amidotransferase Promotes the Progression of Thyroid Cancer via Regulating Pyruvate Kinase M2. Onco Targets Ther 2020; 13:7629-7639. [PMID: 32801776 PMCID: PMC7413720 DOI: 10.2147/ott.s253137] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 06/17/2020] [Indexed: 12/26/2022] Open
Abstract
Background Pyruvate kinase is an enzyme that catalyzes the conversion of phosphoenolpyruvate and ADP to pyruvate and ATP in glycolysis and plays a role in regulating cell metabolism. It is reported that the activity of pyruvate kinase is increased in cancers. Phosphoribosyl amidotransferase (PPAT) is reported to be a crucial regulator for pyruvate kinase activity in lung cancer. However, its role in thyroid cancer remains largely unknown. Materials and Methods Immunohistochemical analysis and qRT-PCR were used to detect the expression of PPAT in thyroid cancer samples. Both gain-of-function and loss-of-function models were constructed in thyroid cancer cell lines and the biological functions of PPAT on cellular phenotypes were studied using CCK-8 assay and transwell assay in vitro, respectively. Then, Western blot was used to evaluate the change of PKM2 and downstream signal pathways after PPAT was overexpressed or knocked down. Results Immunohistochemical analysis showed increased expression of PPAT in thyroid cancer tissues, and it was associated with unfavorable pathological characteristics. Knockdown and overexpression assays suggested that altering PPAT expression modulated cell proliferation, migration, and invasion. In terms of mechanism, PPAT could positively regulate the expression of PKM2 and activate ERK and STAT3 signaling pathways. Conclusion PPAT plays crucial roles in regulating proliferation, migration, and invasion of thyroid cancer cells via activating PKM2, ERK, and STAT3.
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Affiliation(s)
- Bing Liu
- The 4th Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
| | - Meiyue Song
- The Pathology Department, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
| | - Huadong Qin
- The 4th Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
| | - Bin Zhang
- The 4th Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
| | - Yao Liu
- The 4th Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
| | - Yu Sun
- The 4th Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
| | - Yanfei Ma
- The 4th Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
| | - Tiefeng Shi
- The 4th Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin City 150086, Heilongjiang Province, People's Republic of China
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70
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Proteomic profiling of MIN6 cell-derived exosomes. J Proteomics 2020; 224:103841. [PMID: 32461166 DOI: 10.1016/j.jprot.2020.103841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/11/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023]
Abstract
Exosomes have been widely used in research on the early clinical diagnosis, prognosis and treatment of various cancers due to their features of small size (30-120 nm), non-immunogenicity and ability to cross biological barriers. However, few studies have investigated exosomes involved in metabolic diseases. Early studies have found that adipose tissue can be a source of exosomes regulating metabolism, but the related functions of exosomes secreted by other tissues in the regulation of metabolic diseases have not been determined. In addition, islets were found to be able to secrete miRNA via exosomes, suggesting that islet exosomes may be among the sources of exosomes involved in the regulation of metabolic diseases and that the relevant protein profiles have not been characterized to date. Therefore, identifying the protein contents of pancreatic β cell-derived exosomes would benefit further research investigating the protein functions and mechanisms associated with diabetes-related metabolic diseases. SIGNIFICANCE: Exosomes are emerging tools for investigating metabolic diseases in recent years, but little research has been done. In our work, functional identification of MIN6 cell-derived exosomal proteins and comparative analysis of islet β cell exosomal protein data from different cell lines or from different species revealed that exosomes secreted by islet β cells may be involved in the regulation of glucose metabolism. These results may suggest that intercellular communication induced by exosome transfer among tissues may account for the major reason of diabetic metabolic disorder. In addition, these results may provide a theoretical basis for the study of the physiological and pathological functions of islet β cell exosomes for the future studies.
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Walbrecq G, Margue C, Behrmann I, Kreis S. Distinct Cargos of Small Extracellular Vesicles Derived from Hypoxic Cells and Their Effect on Cancer Cells. Int J Mol Sci 2020; 21:ijms21145071. [PMID: 32709110 PMCID: PMC7404308 DOI: 10.3390/ijms21145071] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023] Open
Abstract
Hypoxia is a common hallmark of solid tumors and is associated with aggressiveness, metastasis and poor outcome. Cancer cells under hypoxia undergo changes in metabolism and there is an intense crosstalk between cancer cells and cells from the tumor microenvironment. This crosstalk is facilitated by small extracellular vesicles (sEVs; diameter between 30 and 200 nm), including exosomes and microvesicles, which carry a cargo of proteins, mRNA, ncRNA and other biological molecules. Hypoxia is known to increase secretion of sEVs and has an impact on the composition of the cargo. This sEV-mediated crosstalk ultimately leads to various biological effects in the proximal tumor microenvironment but also at distant, future metastatic sites. In this review, we discuss the changes induced by hypoxia on sEV secretion and their cargo as well as their effects on the behavior and metabolism of cancer cells, the tumor microenvironment and metastatic events.
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Hou PP, Luo LJ, Chen HZ, Chen QT, Bian XL, Wu SF, Zhou JX, Zhao WX, Liu JM, Wang XM, Zhang ZY, Yao LM, Chen Q, Zhou D, Wu Q. Ectosomal PKM2 Promotes HCC by Inducing Macrophage Differentiation and Remodeling the Tumor Microenvironment. Mol Cell 2020; 78:1192-1206.e10. [PMID: 32470318 DOI: 10.1016/j.molcel.2020.05.004] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 03/11/2020] [Accepted: 05/01/2020] [Indexed: 12/12/2022]
Abstract
Tumor-derived extracellular vesicles are important mediators of cell-to-cell communication during tumorigenesis. Here, we demonstrated that hepatocellular carcinoma (HCC)-derived ectosomes remodel the tumor microenvironment to facilitate HCC progression in an ectosomal PKM2-dependent manner. HCC-derived ectosomal PKM2 induced not only metabolic reprogramming in monocytes but also STAT3 phosphorylation in the nucleus to upregulate differentiation-associated transcription factors, leading to monocyte-to-macrophage differentiation and tumor microenvironment remodeling. In HCC cells, sumoylation of PKM2 induced its plasma membrane targeting and subsequent ectosomal excretion via interactions with ARRDC1. The PKM2-ARRDC1 association in HCC was reinforced by macrophage-secreted cytokines/chemokines in a CCL1-CCR8 axis-dependent manner, further facilitating PKM2 excretion from HCC cells to form a feedforward regulatory loop for tumorigenesis. In the clinic, ectosomal PKM2 was clearly detected in the plasma of HCC patients. This study highlights a mechanism by which ectosomal PKM2 remodels the tumor microenvironment and reveals ectosomal PKM2 as a potential diagnostic marker for HCC.
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Affiliation(s)
- Pei-Pei Hou
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Li-Juan Luo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Hang-Zi Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Qi-Tao Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Xue-Li Bian
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Sheng-Fu Wu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Jia-Xin Zhou
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Wen-Xiu Zhao
- Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Zhong Shan Hospital, Xiamen University, Xiamen 361005, Fujian Province, PR China
| | - Jian-Ming Liu
- Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Zhong Shan Hospital, Xiamen University, Xiamen 361005, Fujian Province, PR China
| | - Xiao-Min Wang
- Fujian Provincial Key Laboratory of Chronic Liver Disease and Hepatocellular Carcinoma, Zhong Shan Hospital, Xiamen University, Xiamen 361005, Fujian Province, PR China
| | - Zhi-Yuan Zhang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Lu-Ming Yao
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Qinghua Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Dawang Zhou
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China
| | - Qiao Wu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, Fujian Province, PR China.
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Lim AR, Rathmell WK, Rathmell JC. The tumor microenvironment as a metabolic barrier to effector T cells and immunotherapy. eLife 2020; 9:55185. [PMID: 32367803 PMCID: PMC7200151 DOI: 10.7554/elife.55185] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/22/2020] [Indexed: 01/05/2023] Open
Abstract
Breakthroughs in anti-tumor immunity have led to unprecedented advances in immunotherapy, yet it is now clear that the tumor microenvironment (TME) restrains immunity. T cells must substantially increase nutrient uptake to mount a proper immune response and failure to obtain sufficient nutrients or engage the appropriate metabolic pathways can alter or prevent effector T cell differentiation and function. The TME, however, can be metabolically hostile due to insufficient vascular exchange and cancer cell metabolism that leads to hypoxia, depletion of nutrients, and accumulation of waste products. Further, inhibitory receptors present in the TME can inhibit T cell metabolism and alter T cell signaling both directly and through release of extracellular vesicles such as exosomes. This review will discuss the metabolic changes that drive T cells into different stages of their development and how the TME imposes barriers to the metabolism and activity of tumor infiltrating lymphocytes.
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Affiliation(s)
- Aaron R Lim
- Department of Medicine, Division of Hematology and Oncology, Vanderbilt University Medical Center, Nashville, United States
| | - W Kimryn Rathmell
- Department of Medicine, Division of Hematology and Oncology, Vanderbilt University Medical Center, Nashville, United States.,Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, United States.,Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, United States
| | - Jeffrey C Rathmell
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, United States.,Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, United States.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, United States
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Li B, Zhao H, Wu Y, Zhu Y, Zhang J, Yang G, Yan Q, Li J, Li T, Liu L. Mitochondrial-Derived Vesicles Protect Cardiomyocytes Against Hypoxic Damage. Front Cell Dev Biol 2020; 8:214. [PMID: 32426351 PMCID: PMC7212461 DOI: 10.3389/fcell.2020.00214] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 03/11/2020] [Indexed: 01/20/2023] Open
Abstract
Myocardial ischemia is a condition with insufficient oxygen supporting the heart tissues, which may result from myocardial infarction or trauma-induced hemorrhagic shock. In order to develop better preventive and therapeutic strategies for myocardial ischemic damage, it is important that we understand the mechanisms underlying this type of injury. Mitochondrial-derived vesicles (MDVs) have been proposed as a novel player in maintaining mitochondrial quality control. This study aimed to investigate the role and possible mechanisms of MDVs in ischemia/hypoxia-induced myocardial apoptosis. H9C2 cardiomyocytes were used for the cellular experiments. A 40% fixed blood volume hemorrhagic shock rat model was used to construct the acute general ischemic models. MDVs were detected using immunofluorescence staining with PDH and TOM20. Exogenous MDVs were reconstituted in vitro from isolated mitochondria under different hypoxic conditions. The results demonstrate that MDV production was negatively correlated with cardiomyocyte apoptosis under hypoxic conditions; exogenous MDVs inhibited hypoxia-induced cardiomyocyte apoptosis; and MDV-mediated protection against hypoxia-induced cardiomyocyte apoptosis was accomplished via Bcl-2 interactions in the mitochondrial pathway. This study provides evidence that MDVs protect cardiomyocytes against hypoxic damage by inhibiting mitochondrial apoptosis. Our study used a novel approach that expands our understanding of MDVs and highlights that MDVs may be part of the endogenous response to hypoxia designed to mitigate damage. Strategies that stimulate cardiomyocytes to produce cargo-specific MDVs, including Bcl-2 containing MDVs, could theoretically be helpful in treating ischemic/hypoxic myocardial injury.
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Affiliation(s)
- Binghu Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Hongliang Zhao
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Yue Wu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Yu Zhu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Jie Zhang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Guangming Yang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Qingguang Yan
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Junxia Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Tao Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Liangming Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department 2, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
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Walbrecq G, Lecha O, Gaigneaux A, Fougeras MR, Philippidou D, Margue C, Tetsi Nomigni M, Bernardin F, Dittmar G, Behrmann I, Kreis S. Hypoxia-Induced Adaptations of miRNomes and Proteomes in Melanoma Cells and Their Secreted Extracellular Vesicles. Cancers (Basel) 2020; 12:cancers12030692. [PMID: 32183388 PMCID: PMC7140034 DOI: 10.3390/cancers12030692] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 03/12/2020] [Indexed: 12/13/2022] Open
Abstract
Reduced levels of intratumoural oxygen are associated with hypoxia-induced pro-oncogenic events such as invasion, metabolic reprogramming, epithelial–mesenchymal transition, metastasis and resistance to therapy, all favouring cancer progression. Small extracellular vesicles (EV) shuttle various cargos (proteins, miRNAs, DNA and others). Tumour-derived EVs can be taken up by neighbouring or distant cells in the tumour microenvironment, thus facilitating intercellular communication. The quantity of extracellular vesicle secretion and their composition can vary with changing microenvironmental conditions and disease states. Here, we investigated in melanoma cells the influence of hypoxia on the content and number of secreted EVs. Whole miRNome and proteome profiling revealed distinct expression patterns in normoxic or hypoxic growth conditions. Apart from the well-known miR-210, we identified miR-1290 as a novel hypoxia-associated microRNA, which was highly abundant in hypoxic EVs. On the other hand, miR-23a-5p and -23b-5p were consistently downregulated in hypoxic conditions, while the protein levels of the miR-23a/b-5p-predicted target IPO11 were concomitantly upregulated. Furthermore, hypoxic melanoma EVs exhibit a signature consisting of six proteins (AKR7A2, DDX39B, EIF3C, FARSA, PRMT5, VARS), which were significantly associated with a poor prognosis for melanoma patients, indicating that proteins and/or miRNAs secreted by cancer cells may be exploited as biomarkers.
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Affiliation(s)
- Geoffroy Walbrecq
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
| | - Odile Lecha
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
| | - Anthoula Gaigneaux
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
| | - Miriam R. Fougeras
- Proteomics of Cellular Signaling, Quantitative Biology Unit, Luxembourg Institute of Health, 1A-B, rue Thomas Edison, L-1445 Strassen, Luxembourg; (M.R.F.)
- Doctoral School in Science and Engineering (DSSE), Faculty of Science, Technology and Medicine, University of Luxembourg, 2 avenue de l’Université, L-4365 Esch-sur-Alzette, Luxembourg
| | - Demetra Philippidou
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
| | - Christiane Margue
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
| | - Milène Tetsi Nomigni
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
| | - François Bernardin
- Proteomics of Cellular Signaling, Quantitative Biology Unit, Luxembourg Institute of Health, 1A-B, rue Thomas Edison, L-1445 Strassen, Luxembourg; (M.R.F.)
| | - Gunnar Dittmar
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
- Proteomics of Cellular Signaling, Quantitative Biology Unit, Luxembourg Institute of Health, 1A-B, rue Thomas Edison, L-1445 Strassen, Luxembourg; (M.R.F.)
| | - Iris Behrmann
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
| | - Stephanie Kreis
- Department of Life Sciences and Medicine, University of Luxembourg, 6, avenue du Swing, L-4367 Belvaux, Luxembourg; (G.W.); (O.L.); (A.G.); (D.P.); (C.M.); (M.T.N.); (G.D.); (I.B.)
- Correspondence:
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76
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Miyazoe Y, Miuma S, Miyaaki H, Kanda Y, Nakashiki S, Sasaki R, Haraguchi M, Shibata H, Honda T, Taura N, Nakao K. Extracellular vesicles from senescent hepatic stellate cells promote cell viability of hepatoma cells through increasing EGF secretion from differentiated THP-1 cells. Biomed Rep 2020; 12:163-170. [PMID: 32190304 PMCID: PMC7054706 DOI: 10.3892/br.2020.1279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 01/17/2020] [Indexed: 12/28/2022] Open
Abstract
Since the discovery of the senescence-associated secretory phenotype, the role of senescent hepatic stellate cells (HSCs) in hepatocellular carcinoma (HCC) development has gained increasing attention. Similar to cytokines, extracellular vesicles (EVs) are essential for intercellular communication. However, the function of EVs derived from senescent HSCs in HCC progression has not been extensively studied. The aims of the present study were to characterize the EVs derived from senescent HSCs and determine their role in the tumor microenvironment. Cellular senescence was induced in human hepatic stellate cells (HHSteCs) with various concentrations of etoposide. Induction was confirmed using EdU staining and 53BP1 and p21 immunostaining. EVs were isolated by ultracentrifugation and analyzed by nanoparticle tracking analysis. Multiplex immunoassays were used to compare the levels of growth factors secreted from hepatoma cell lines and macrophage cells pretreated with EVs derived from senescent HHSteCs (senescent EVs) with those pretreated with EVs derived from normal cultured HHSteCs (normal EVs). Treatment with 25 µM etoposide for 3 days was the most effective at inducing senescence in HHSteCs. This finding was confirmed by induction of irreversible cell-cycle arrest, upregulation of 53BP1 and p21 expression, and increased SA-β-gal staining. Senescent HHSteCs released increased quantities of EV particles compared with normally cultured HHSteCs. Multiplex analysis revealed that there was no difference between hepatoma cell lines treated with normal EVs and those treated with senescent EVs in growth factor secretion. In contrast, the secretion of epidermal growth factor (EGF) was increased by macrophage cells treated with senescent EVs compared with those treated with normal EVs. Furthermore, senescent EVs did not affect the viability of hepatoma cells but increased the viability of hepatoma cells co-cultured with macrophage cells. In conclusion, the release of EVs from senescent HSCs was higher compared with normal HSCs. Furthermore, senescent EVs promoted HCC development by upregulating EGF secretion from macrophages.
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Affiliation(s)
- Yuri Miyazoe
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Satoshi Miuma
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Hisamitsu Miyaaki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Yasuko Kanda
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Suguru Nakashiki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Ryu Sasaki
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Masafumi Haraguchi
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Hidetaka Shibata
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Takuya Honda
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Naota Taura
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Kazuhiko Nakao
- Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
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Metabolic Signature of Hepatic Fibrosis: From Individual Pathways to Systems Biology. Cells 2019; 8:cells8111423. [PMID: 31726658 PMCID: PMC6912636 DOI: 10.3390/cells8111423] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/08/2019] [Accepted: 11/10/2019] [Indexed: 02/06/2023] Open
Abstract
Hepatic fibrosis is a major cause of morbidity and mortality worldwide, as it ultimately leads to cirrhosis, which is estimated to affect up to 2% of the global population. Hepatic fibrosis is confirmed by liver biopsy, and the erroneous nature of this technique necessitates the search for noninvasive alternatives. However, current biomarker algorithms for hepatic fibrosis have many limitations. Given that the liver is the largest organ and a major metabolic hub in the body, probing the metabolic signature of hepatic fibrosis holds promise for the discovery of new markers and therapeutic targets. Regarding individual metabolic pathways, accumulating evidence shows that hepatic fibrosis leads to alterations in carbohydrate metabolism, as aerobic glycolysis is aggravated in activated hepatic stellate cells (HSCs) and the whole fibrotic liver; in amino acid metabolism, as Fischer’s ratio (branched-chain amino acids/aromatic amino acids) decreases in patients with hepatic fibrosis; and in lipid metabolism, as HSCs lose vitamin A-containing lipid droplets during transdifferentiation, and cirrhotic patients have decreased serum lipids. The current review also summarizes recent findings of metabolic alterations relevant to hepatic fibrosis based on systems biology approaches, including transcriptomics, proteomics, and metabolomics in vitro, in animal models and in humans.
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Meurer S, Wimmer AE, Leur EVD, Weiskirchen R. Endoglin Trafficking/Exosomal Targeting in Liver Cells Depends on N-Glycosylation. Cells 2019; 8:cells8090997. [PMID: 31466384 PMCID: PMC6769735 DOI: 10.3390/cells8090997] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 02/06/2023] Open
Abstract
Injury of the liver involves a wound healing partial reaction governed by hepatic stellate cells and portal fibroblasts. Individual members of the transforming growth factor-β (TGF-β) superfamily including TGF-β itself and bone morphogenetic proteins (BMP) exert diverse and partially opposing effects on pro-fibrogenic responses. Signaling by these ligands is mediated through binding to membrane integral receptors type I/type II. Binding and the outcome of signaling is critically modulated by Endoglin (Eng), a type III co-receptor. In order to learn more about trafficking of Eng in liver cells, we investigated the membranal subdomain localization of full-length (FL)-Eng. We could show that FL-Eng is enriched in Caveolin-1-containing sucrose gradient fractions. Since lipid rafts contribute to the pool of exosomes, we could consequently demonstrate for the first time that exosomes isolated from cultured primary hepatic stellate cells and its derivatives contain Eng. Moreover, via adenoviral overexpression, we demonstrate that all liver cells have the capacity to direct Eng to exosomes, irrespectively whether they express endogenous Eng or not. Finally, we demonstrate that block of N-glycosylation does not interfere with dimerization of the receptor, but abrogates the secretion of soluble Eng (sol-Eng) and prevents exosomal targeting of FL-Eng.
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Affiliation(s)
- Steffen Meurer
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany.
| | - Almut Elisabeth Wimmer
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany
| | - Eddy van de Leur
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany
| | - Ralf Weiskirchen
- RWTH University Hospital Aachen, Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, D-52074 Aachen, Germany.
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