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Manav N, Jit BP, Kataria B, Sharma A. Cellular and epigenetic perspective of protein stability and its implications in the biological system. Epigenomics 2024; 16:879-900. [PMID: 38884355 DOI: 10.1080/17501911.2024.2351788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/30/2024] [Indexed: 06/18/2024] Open
Abstract
Protein stability is a fundamental prerequisite in both experimental and therapeutic applications. Current advancements in high throughput experimental techniques and functional ontology approaches have elucidated that impairment in the structure and stability of proteins is intricately associated with the cause and cure of several diseases. Therefore, it is paramount to deeply understand the physical and molecular confounding factors governing the stability of proteins. In this review article, we comprehensively investigated the evolution of protein stability, examining its emergence over time, its relationship with organizational aspects and the experimental methods used to understand it. Furthermore, we have also emphasized the role of Epigenetics and its interplay with post-translational modifications (PTMs) in regulating the stability of proteins.
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Affiliation(s)
- Nisha Manav
- Department of Biochemistry, All India Institute of Medical Sciences New Delhi, Ansari Nagar, 110029, India
| | - Bimal Prasad Jit
- Department of Biochemistry, All India Institute of Medical Sciences New Delhi, Ansari Nagar, 110029, India
| | - Babita Kataria
- Department of Medical Oncology, National Cancer Institute, All India Institute of Medical Sciences, Jhajjar, 124105, India
| | - Ashok Sharma
- Department of Biochemistry, All India Institute of Medical Sciences New Delhi, Ansari Nagar, 110029, India
- Department of Biochemistry, National Cancer Institute, All India Institute of Medical Sciences, Jhajjar, 124105, India
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2
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Krishnan A, Waheed SO, Varghese A, Cherilakkudy FH, Schofield CJ, Karabencheva-Christova TG. Unusual catalytic strategy by non-heme Fe(ii)/2-oxoglutarate-dependent aspartyl hydroxylase AspH. Chem Sci 2024; 15:3466-3484. [PMID: 38455014 PMCID: PMC10915816 DOI: 10.1039/d3sc05974j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/02/2024] [Indexed: 03/09/2024] Open
Abstract
Biocatalytic C-H oxidation reactions are of important synthetic utility, provide a sustainable route for selective synthesis of important organic molecules, and are an integral part of fundamental cell processes. The multidomain non-heme Fe(ii)/2-oxoglutarate (2OG) dependent oxygenase AspH catalyzes stereoselective (3R)-hydroxylation of aspartyl- and asparaginyl-residues. Unusually, compared to other 2OG hydroxylases, crystallography has shown that AspH lacks the carboxylate residue of the characteristic two-His-one-Asp/Glu Fe-binding triad. Instead, AspH has a water molecule that coordinates Fe(ii) in the coordination position usually occupied by the Asp/Glu carboxylate. Molecular dynamics (MD) and quantum mechanics/molecular mechanics (QM/MM) studies reveal that the iron coordinating water is stabilized by hydrogen bonding with a second coordination sphere (SCS) carboxylate residue Asp721, an arrangement that helps maintain the six coordinated Fe(ii) distorted octahedral coordination geometry and enable catalysis. AspH catalysis follows a dioxygen activation-hydrogen atom transfer (HAT)-rebound hydroxylation mechanism, unusually exhibiting higher activation energy for rebound hydroxylation than for HAT, indicating that the rebound step may be rate-limiting. The HAT step, along with substrate positioning modulated by the non-covalent interactions with SCS residues (Arg688, Arg686, Lys666, Asp721, and Gln664), are essential in determining stereoselectivity, which likely proceeds with retention of configuration. The tetratricopeptide repeat (TPR) domain of AspH influences substrate binding and manifests dynamic motions during catalysis, an observation of interest with respect to other 2OG oxygenases with TPR domains. The results provide unique insights into how non-heme Fe(ii) oxygenases can effectively catalyze stereoselective hydroxylation using only two enzyme-derived Fe-ligating residues, potentially guiding enzyme engineering for stereoselective biocatalysis, thus advancing the development of non-heme Fe(ii) based biomimetic C-H oxidation catalysts, and supporting the proposal that the 2OG oxygenase superfamily may be larger than once perceived.
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Affiliation(s)
- Anandhu Krishnan
- Department of Chemistry, Michigan Technological University Houghton MI 49931 USA
| | - Sodiq O Waheed
- Department of Chemistry, Michigan Technological University Houghton MI 49931 USA
| | - Ann Varghese
- Department of Chemistry, Michigan Technological University Houghton MI 49931 USA
| | | | - Christopher J Schofield
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford OX1 3TA Oxford UK
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Diptiman D, Jalan A, Pal R, Dodwani S, Bandyopadhyay D. Hist-i-fy-a multiple histidine post-translational-modification (PTM) prediction server based on protein sequences using convolution neural network: a case study on mass spectroscopy data. J Biomol Struct Dyn 2024:1-10. [PMID: 38285683 DOI: 10.1080/07391102.2024.2310200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/19/2024] [Indexed: 01/31/2024]
Abstract
Computational characterization of multiple Histidine (His) post-translational-modifications (PTM) at enzyme active sites complements tedious experimental characterization in proteins-of-unknown-functions (PUFs) and domain-of-unknown-functions (DUFs). There are only a handful of Histidine-PTM-prediction-tools and those also annotate only a single function. Here, we addressed the problem using artificial neural networks on functional histidine dataset curated from enzyme (protein) sequences available in UniProt database (sample size n = 1584). The convolution-neural-network (CNN) model ('Hist-i-fy') performed the best with 75% overall accuracy/F1-score. A case study was performed on histidine-phosphorylation (n = 34) obtained from mass spectroscopy data. For the first time, we report multiple His-PTM-prediction-tool (https://histify.streamlit.app/& https://github.com/dibyansu24-maker/Histify), with optimal performance. The inputs to the tool are (i) protein sequence containing histidine, and (ii) the histidine residue number. Prediction output is one out of the eight histidine functions-acetylation, ribosylation, glycosylation, hydroxylation, methylation, oxidation, phosphorylation, and protein splicing.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Dibyansu Diptiman
- Department of Biological Sciences, Birla Institute of Technology and Science, Hyderabad, India
| | - Abhishek Jalan
- Department of Biological Sciences, Birla Institute of Technology and Science, Hyderabad, India
| | - Rishabh Pal
- Department of Biological Sciences, Birla Institute of Technology and Science, Hyderabad, India
| | - Sachin Dodwani
- Department of Biological Sciences, Birla Institute of Technology and Science, Hyderabad, India
| | - Debashree Bandyopadhyay
- Department of Biological Sciences, Birla Institute of Technology and Science, Hyderabad, India
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4
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Ma B, Gavzy SJ, France M, Song Y, Lwin HW, Kensiski A, Saxena V, Piao W, Lakhan R, Iyyathurai J, Li L, Paluskievicz C, Wu L, WillsonShirkey M, Mongodin EF, Mas VR, Bromberg JS. Rapid intestinal and systemic metabolic reprogramming in an immunosuppressed environment. BMC Microbiol 2023; 23:394. [PMID: 38066426 PMCID: PMC10709923 DOI: 10.1186/s12866-023-03141-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
Intrinsic metabolism shapes the immune environment associated with immune suppression and tolerance in settings such as organ transplantation and cancer. However, little is known about the metabolic activities in an immunosuppressive environment. In this study, we employed metagenomic, metabolomic, and immunological approaches to profile the early effects of the immunosuppressant drug tacrolimus, antibiotics, or both in gut lumen and circulation using a murine model. Tacrolimus induced rapid and profound alterations in metabolic activities within two days of treatment, prior to alterations in gut microbiota composition and structure. The metabolic profile and gut microbiome after seven days of treatment was distinct from that after two days of treatment, indicating continuous drug effects on both gut microbial ecosystem and host metabolism. The most affected taxonomic groups are Clostriales and Verrucomicrobiae (i.e., Akkermansia muciniphila), and the most affected metabolic pathways included a group of interconnected amino acids, bile acid conjugation, glucose homeostasis, and energy production. Highly correlated metabolic changes were observed between lumen and serum metabolism, supporting their significant interactions. Despite a small sample size, this study explored the largely uncharacterized microbial and metabolic events in an immunosuppressed environment and demonstrated that early changes in metabolic activities can have significant implications that may serve as antecedent biomarkers of immune activation or quiescence. To understand the intricate relationships among gut microbiome, metabolic activities, and immune cells in an immune suppressed environment is a prerequisite for developing strategies to monitor and optimize alloimmune responses that determine transplant outcomes.
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Affiliation(s)
- Bing Ma
- Institute of Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
| | - Samuel J Gavzy
- Department of Surgery, University of Maryland Medical Center, Baltimore, MD, 21201, USA
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Michael France
- Institute of Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Yang Song
- Institute of Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Hnin Wai Lwin
- Institute of Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Allison Kensiski
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Vikas Saxena
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Wenji Piao
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Ram Lakhan
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Jegan Iyyathurai
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Lushen Li
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Christina Paluskievicz
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Long Wu
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Marina WillsonShirkey
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Emmanuel F Mongodin
- Institute of Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- Division of Lung Diseases, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Valeria R Mas
- Department of Surgery, University of Maryland Medical Center, Baltimore, MD, 21201, USA
| | - Jonathan S Bromberg
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Department of Surgery, University of Maryland Medical Center, Baltimore, MD, 21201, USA.
- Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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5
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Ma B, Gavzy SJ, France M, Song Y, Lwin HW, Kensiski A, Saxena V, Piao W, Lakhan R, Iyyathurai J, Li L, Paluskievicz C, Wu L, WillsonShirkey M, Mongodin EF, Mas VR, Bromberg J. Rapid intestinal and systemic metabolic reprogramming in an immunosuppressed environment. RESEARCH SQUARE 2023:rs.3.rs-3364037. [PMID: 37790403 PMCID: PMC10543476 DOI: 10.21203/rs.3.rs-3364037/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Intrinsic metabolism shapes the immune environment associated with immune suppression and tolerance in settings such as organ transplantation and cancer. However, little is known about the metabolic activities in an immunosuppressive environment. In this study, we employed metagenomic, metabolomic, and immunological approaches to profile the early effects of the immunosuppressant drug tacrolimus, antibiotics, or both in gut lumen and circulation using a murine model. Tacrolimus induced rapid and profound alterations in metabolic activities within two days of treatment, prior to alterations in gut microbiota composition and structure. The metabolic profile and gut microbiome after seven days of treatment was distinct from that after two days of treatment, indicating continuous drug effects on both gut microbial ecosystem and host metabolism. The most affected taxonomic groups are Clostriales and Verrucomicrobiae (i.e., Akkermansia muciniphila), and the most affected metabolic pathways included a group of interconnected amino acids, bile acid conjugation, glucose homeostasis, and energy production. Highly correlated metabolic changes were observed between lumen and serum metabolism, supporting their significant interactions. Despite a small sample size, this study explored the largely uncharacterized microbial and metabolic events in an immunosuppressed environment and demonstrated that early changes in metabolic activities can have significant implications that may serve as antecedent biomarkers of immune activation or quiescence. To understand the intricate relationships among gut microbiome, metabolic activities, and immune cells in an immune suppressed environment is a prerequisite for developing strategies to monitor and optimize alloimmune responses that determine transplant outcomes.
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Affiliation(s)
- Bing Ma
- University of Maryland, Baltimore
| | | | | | | | | | | | | | | | | | | | | | | | - Long Wu
- University of Maryland, Baltimore
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6
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Doelman W, Reijnen RC, Dijksman N, Janssen APA, van Driel N, 't Hart BA, Philippens I, Araman C, Baron W, van Kasteren SI. Citrullinated human and murine MOG 35-55 display distinct biophysical and biochemical behavior. J Biol Chem 2023; 299:103065. [PMID: 36841486 PMCID: PMC10060747 DOI: 10.1016/j.jbc.2023.103065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/15/2023] [Accepted: 02/18/2023] [Indexed: 02/27/2023] Open
Abstract
The peptide spanning residues 35 to 55 of the protein myelin oligodendrocyte glycoprotein (MOG) has been studied extensively in its role as a key autoantigen in the neuroinflammatory autoimmune disease multiple sclerosis. Rodents and nonhuman primate species immunized with this peptide develop a neuroinflammatory condition called experimental autoimmune encephalomyelitis, often used as a model for multiple sclerosis. Over the last decade, the role of citrullination of this antigen in the disease onset and progression has come under increased scrutiny. We recently reported on the ability of these citrullinated MOG35-55 peptides to aggregate in an amyloid-like fashion, suggesting a new potential pathogenic mechanism underlying this disease. The immunodominant region of MOG is highly conserved between species, with the only difference between the murine and human protein, a polymorphism on position 42, which is serine in mice and proline for humans. Here, we show that the biophysical and biochemical behavior we previously observed for citrullinated murine MOG35-55 is fundamentally different for human and mouse MOG35-55. The citrullinated human peptides do not show amyloid-like behavior under the conditions where the murine peptides do. Moreover, we tested the ability of these peptides to stimulate lymphocytes derived from MOG immunized marmoset monkeys. While the citrullinated murine peptides did not produce a proliferative response, one of the citrullinated human peptides did. We postulate that this unexpected difference is caused by disparate antigen processing. Taken together, our results suggest that further study on the role of citrullination in MOG-induced experimental autoimmune encephalomyelitis is necessary.
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Affiliation(s)
- W Doelman
- Department of Bio-Organic Synthesis, Leiden Institute of Chemistry, Leiden, the Netherlands
| | - R C Reijnen
- Department of Bio-Organic Synthesis, Leiden Institute of Chemistry, Leiden, the Netherlands
| | - N Dijksman
- Section Molecular Neurobiology, Department Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - A P A Janssen
- Department of Bio-Organic Synthesis, Leiden Institute of Chemistry, Leiden, the Netherlands
| | - N van Driel
- Department of Immunobiology, Biomedical Primate Research Center, Rijswijk, the Netherlands
| | - B A 't Hart
- Section Molecular Neurobiology, Department Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - I Philippens
- Department of Immunobiology, Biomedical Primate Research Center, Rijswijk, the Netherlands
| | - C Araman
- Department of Bio-Organic Synthesis, Leiden Institute of Chemistry, Leiden, the Netherlands
| | - W Baron
- Section Molecular Neurobiology, Department Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
| | - S I van Kasteren
- Department of Bio-Organic Synthesis, Leiden Institute of Chemistry, Leiden, the Netherlands.
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7
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Todorović L, Stanojević B. VHL tumor suppressor as a novel potential candidate biomarker in papillary thyroid carcinoma. BIOMOLECULES AND BIOMEDICINE 2023; 23:26-36. [PMID: 36036061 PMCID: PMC9901892 DOI: 10.17305/bjbms.2022.7850] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/12/2022] [Indexed: 02/03/2023]
Abstract
Papillary thyroid carcinoma (PTC) is the most common type of endocrine cancer, with an increasing incidence worldwide. The treatment of PTC is currently the subject of clinical controversy, making it critically important to identify molecular markers that would help improve the risk stratification of PTC patients and optimize the therapeutic approach. The VHL tumor suppressor gene has been implicated in tumorigenesis of various types of carcinoma and linked with their aggressive biological behavior. The role of VHL in the origin and development of PTC has only recently begun to be revealed. In this narrative review we attempt to summarize the existing knowledge that implicates VHL in PTC pathogenesis and to outline its potential significance as a candidate molecular biomarker for the grouping of PTC patients into high and low risk groups.
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Affiliation(s)
- Lidija Todorović
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia,Correspondence to Lidija Todorović:
| | - Boban Stanojević
- Laboratory for Radiobiology and Molecular Genetics, Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia,Department of Haematological Medicine, Division of Cancer Studies, Leukemia and Stem Cell Biology Team, King’s College London, London, UK,Virocell Biologics, Department of Cell and Gene Therapy, Great Ormond Street Hospital for Children, Zayed Centre for Research into Rare Disease in Children, London, UK
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Mohammad Omar J, Hai Y, Jin S. Hypoxia-induced factor and its role in liver fibrosis. PeerJ 2022; 10:e14299. [PMID: 36523459 PMCID: PMC9745792 DOI: 10.7717/peerj.14299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 10/04/2022] [Indexed: 12/12/2022] Open
Abstract
Liver fibrosis develops as a result of severe liver damage and is considered a major clinical concern throughout the world. Many factors are crucial for liver fibrosis progression. While advancements have been made to understand this disease, no effective pharmacological drug and treatment strategies have been established that can effectively prevent liver fibrosis or even could halt the fibrotic process. Most of those advances in curing liver fibrosis have been aimed towards mitigating the causes of fibrosis, including the development of potent antivirals to inhibit the hepatitis virus. It is not practicable for many individuals; however, a liver transplant becomes the only suitable alternative. A liver transplant is an expensive procedure. Thus, there is a significant need to identify potential targets of liver fibrosis and the development of such agents that can effectively treat or reverse liver fibrosis by targeting them. Researchers have identified hypoxia-inducible factors (HIFs) in the last 16 years as important transcription factors driving several facets of liver fibrosis, making them possible therapeutic targets. The latest knowledge on HIFs and their possible role in liver fibrosis, along with the cell-specific activities of such transcription factors that how they play role in liver fibrosis progression, is discussed in this review.
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Affiliation(s)
- Jan Mohammad Omar
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical, Harbin, Heilongjiang, China
| | - Yang Hai
- College of International Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Shizhu Jin
- Department of Gastroenterology and Hepatology, The Second Affiliated Hospital of Harbin Medical, Harbin, Heilongjiang, China
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Impact of Reactive Species on Amino Acids-Biological Relevance in Proteins and Induced Pathologies. Int J Mol Sci 2022; 23:ijms232214049. [PMID: 36430532 PMCID: PMC9692786 DOI: 10.3390/ijms232214049] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
This review examines the impact of reactive species RS (of oxygen ROS, nitrogen RNS and halogens RHS) on various amino acids, analyzed from a reactive point of view of how during these reactions, the molecules are hydroxylated, nitrated, or halogenated such that they can lose their capacity to form part of the proteins or peptides, and can lose their function. The reactions of the RS with several amino acids are described, and an attempt was made to review and explain the chemical mechanisms of the formation of the hydroxylated, nitrated, and halogenated derivatives. One aim of this work is to provide a theoretical analysis of the amino acids and derivatives compounds in the possible positions. Tyrosine, methionine, cysteine, and tryptophan can react with the harmful peroxynitrite or •OH and •NO2 radicals and glycine, serine, alanine, valine, arginine, lysine, tyrosine, histidine, cysteine, methionine, cystine, tryptophan, glutamine and asparagine can react with hypochlorous acid HOCl. These theoretical results may help to explain the loss of function of proteins subjected to these three types of reactive stresses. We hope that this work can help to assess the potential damage that reactive species can cause to free amino acids or the corresponding residues when they are part of peptides and proteins.
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ROS: Basic Concepts, Sources, Cellular Signaling, and its Implications in Aging Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1225578. [PMID: 36312897 PMCID: PMC9605829 DOI: 10.1155/2022/1225578] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022]
Abstract
Reactive oxygen species (ROS) are bioproducts of cellular metabolism. There is a range of molecules with oxidizing properties known as ROS. Despite those molecules being implied negatively in aging and numerous diseases, their key role in cellular signaling is evident. ROS control several biological processes such as inflammation, proliferation, and cell death. The redox signaling underlying these cellular events is one characteristic of the new generation of scientists aimed at defining the role of ROS in the cellular environment. The control of redox potential, which includes the balance of the sources of ROS and the antioxidant system, implies an important target for understanding the cells' fate derived from redox signaling. In this review, we summarized the chemical, the redox balance, the signaling, and the implications of ROS in biological aging.
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11
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JMJD family proteins in cancer and inflammation. Signal Transduct Target Ther 2022; 7:304. [PMID: 36050314 PMCID: PMC9434538 DOI: 10.1038/s41392-022-01145-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/22/2022] [Accepted: 08/01/2022] [Indexed: 11/30/2022] Open
Abstract
The occurrence of cancer entails a series of genetic mutations that favor uncontrollable tumor growth. It is believed that various factors collectively contribute to cancer, and there is no one single explanation for tumorigenesis. Epigenetic changes such as the dysregulation of enzymes modifying DNA or histones are actively involved in oncogenesis and inflammatory response. The methylation of lysine residues on histone proteins represents a class of post-translational modifications. The human Jumonji C domain-containing (JMJD) protein family consists of more than 30 members. The JMJD proteins have long been identified with histone lysine demethylases (KDM) and histone arginine demethylases activities and thus could function as epigenetic modulators in physiological processes and diseases. Importantly, growing evidence has demonstrated the aberrant expression of JMJD proteins in cancer and inflammatory diseases, which might serve as an underlying mechanism for the initiation and progression of such diseases. Here, we discuss the role of key JMJD proteins in cancer and inflammation, including the intensively studied histone lysine demethylases, as well as the understudied group of JMJD members. In particular, we focused on epigenetic changes induced by each JMJD member and summarized recent research progress evaluating their therapeutic potential for the treatment of cancer and inflammatory diseases.
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12
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Li G, Li D, Wu C, Li S, Chen F, Li P, Ko CN, Wang W, Lee SMY, Lin L, Ma DL, Leung CH. Homocysteine-targeting compounds as a new treatment strategy for diabetic wounds via inhibition of the histone methyltransferase SET7/9. EXPERIMENTAL & MOLECULAR MEDICINE 2022; 54:988-998. [PMID: 35859119 PMCID: PMC9356058 DOI: 10.1038/s12276-022-00804-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 04/10/2022] [Accepted: 04/27/2022] [Indexed: 11/20/2022]
Abstract
In hypoxia and hyperglycemia, SET7/9 plays an important role in controlling HIF-1α methylation and regulating the transcription of HIF-1α target genes, which are responsible for angiogenesis and wound healing. Here, we report the Ir(III) complex Set7_1a bearing acetonitrile (ACN) ligands as a SET7/9 methyltransferase inhibitor and HIF-1α stabilizer. Interestingly, Set7_1a could engage SET7/9 and strongly inhibit SET7/9 activity, especially after preincubation with homocysteine (Hcy), which is elevated in diabetes. We hypothesize that Set7_1a exchanges ACN subunits for Hcy to disrupt the interaction between SET7/9 and SAM/SAH, which are structurally related to Hcy. Inhibition of SET7/9 methyltransferase activity by Set7_1a led to reduced HIF-1α methylation at the lysine 32 residue, causing increased HIF-1α level and recruitment of HIF-1α target genes that promote angiogenesis, such as VEGF, GLUT1, and EPO, in hypoxia and hyperglycemia. Significantly, Set7_1a improved wound healing in a type 2 diabetic mouse model by activating HIF-1α signaling and downstream proangiogenic factors. To our knowledge, this is the first Hcy-targeting iridium compound shown to be a SET7/9 antagonist that can accelerate diabetic wound healing. More importantly, this study opens a therapeutic avenue for the treatment of diabetic wounds by the inhibition of SET7/9 lysine methyltransferase activity. Animal trials have demonstrated the potential of a new drug strategy to heal the wounds associated with diabetes, especially in the feet,which often lead to chronic damage, sometimes treatable only by amputation. Leung CH and Lin L at the University of Macau, China, and Ma DL at the Hong Kong Baptist University tested the new therapy on a mouse model of type 2 diabetes. The treatment uses a homocysteine-targeting metal complex that inhibits a key enzyme SET7/9 involved in the processes that cause diabetic wounds. The treatment activated a molecular signalling cascade involved in generating the new blood vessels needed for wounds to heal. It could help address the urgent need for better treatments for this serious problem.
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Affiliation(s)
- Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.,Zhuhai UM Science and Technology Research Institute, Zhuhai, 519031, China
| | - Dan Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Chun Wu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Shengnan Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Feng Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Chung-Nga Ko
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.,Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi, China
| | - Simon Ming-Yuen Lee
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China. .,Zhuhai UM Science and Technology Research Institute, Zhuhai, 519031, China. .,Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Macao, China.
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13
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Miles S, Magnone J, García-Luna J, Dematteis S, Mourglia-Ettlin G. Unraveling post-translational modifications in Echinococcus granulosus sensu lato. Acta Trop 2022; 230:106410. [PMID: 35300939 DOI: 10.1016/j.actatropica.2022.106410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 11/08/2021] [Accepted: 03/13/2022] [Indexed: 11/26/2022]
Abstract
Echinococcus granulosus sensu lato (s.l.) is the helminth parasite responsible for cystic echinococcosis, a neglected tropical disease currently affecting millions of people worldwide. Incomplete knowledge on the parasite biochemistry contributes, at least partially, to the limited development of useful biotechnological advances for the infection control. In this sense, little information is available regarding post-translational modifications (PTMs) occurring in E. granulosus s.l. proteins, which ultimately may affect the performance of biotechnological products to be developed. Therefore, we report here a proteomic analysis of the parasite PTMs identified through FindMod software applied to a set of tegumental proteins previously characterized by mass spectrometry (MALDI-TOF/TOF) analysis of protein spots from a 2D electrophoresis gel. Manual searches for already annotated proteins exhibiting such PTMs were also performed within proteome databases of E. granulosus s.l. and other platyhelminthes. In addition, key enzymes involved in PTMs modifications were searched for within E. granulosus s.l. proteome. Finally, the presence of selected PTMs was further confirmed by a high-resolution proteomic approach (nanoLC-MS/MS). A set of 22 different PTMs most likely to be present in the parasite was suggested, 9 of them with high confidence as they were identified in the same m/z fragment by both proteomic techniques (acetylation, deamidation, deamidation followed by methylation, mono- and di-hydroxylation, mono- and di-methylation, S-nitrosylation and phosphorylation). Interestingly, 5 PTMs were herein identified for the first time in E. granulosus s.l. proteins. Our results expand the scarcely studied topic of PTMs in platyhelminthes.
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14
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Mongirdienė A, Skrodenis L, Varoneckaitė L, Mierkytė G, Gerulis J. Reactive Oxygen Species Induced Pathways in Heart Failure Pathogenesis and Potential Therapeutic Strategies. Biomedicines 2022; 10:602. [PMID: 35327404 PMCID: PMC8945343 DOI: 10.3390/biomedicines10030602] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/25/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
With respect to structural and functional cardiac disorders, heart failure (HF) is divided into HF with reduced ejection fraction (HFrEF) and HF with preserved ejection fraction (HFpEF). Oxidative stress contributes to the development of both HFrEF and HFpEF. Identification of a broad spectrum of reactive oxygen species (ROS)-induced pathways in preclinical models has provided new insights about the importance of ROS in HFrEF and HFpEF development. While current treatment strategies mostly concern neuroendocrine inhibition, recent data on ROS-induced metabolic pathways in cardiomyocytes may offer additional treatment strategies and targets for both of the HF forms. The purpose of this article is to summarize the results achieved in the fields of: (1) ROS importance in HFrEF and HFpEF pathophysiology, and (2) treatments for inhibiting ROS-induced pathways in HFrEF and HFpEF patients. ROS-producing pathways in cardiomyocytes, ROS-activated pathways in different HF forms, and treatment options to inhibit their action are also discussed.
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Affiliation(s)
- Aušra Mongirdienė
- Department of Biochemistry, Medical Academy, Lithuanian University of Health Sciences, Eiveniu str. 4, LT-50161 Kaunas, Lithuania
| | - Laurynas Skrodenis
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
| | - Leila Varoneckaitė
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
| | - Gerda Mierkytė
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
| | - Justinas Gerulis
- Medical Academy, Lithuanian University of Health Sciences, Mickevičiaus str. 9, LT-44307 Kaunas, Lithuania
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15
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Teixeira CSS, Sousa SF. Current Status of the Use of Multifunctional Enzymes as Anti-Cancer Drug Targets. Pharmaceutics 2021; 14:pharmaceutics14010010. [PMID: 35056904 PMCID: PMC8780674 DOI: 10.3390/pharmaceutics14010010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/06/2021] [Accepted: 12/17/2021] [Indexed: 12/23/2022] Open
Abstract
Fighting cancer is one of the major challenges of the 21st century. Among recently proposed treatments, molecular-targeted therapies are attracting particular attention. The potential targets of such therapies include a group of enzymes that possess the capability to catalyze at least two different reactions, so-called multifunctional enzymes. The features of such enzymes can be used to good advantage in the development of potent selective inhibitors. This review discusses the potential of multifunctional enzymes as anti-cancer drug targets along with the current status of research into four enzymes which by their inhibition have already demonstrated promising anti-cancer effects in vivo, in vitro, or both. These are PFK-2/FBPase-2 (involved in glucose homeostasis), ATIC (involved in purine biosynthesis), LTA4H (involved in the inflammation process) and Jmjd6 (involved in histone and non-histone posttranslational modifications). Currently, only LTA4H and PFK-2/FBPase-2 have inhibitors in active clinical development. However, there are several studies proposing potential inhibitors targeting these four enzymes that, when used alone or in association with other drugs, may provide new alternatives for preventing cancer cell growth and proliferation and increasing the life expectancy of patients.
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Affiliation(s)
- Carla S. S. Teixeira
- Associate Laboratory i4HB, Faculty of Medicine, Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal;
- UCIBIO—Applied Molecular Biosciences Unit, BioSIM—Department of Biomedicine, Faculty of Medicine, University of Porto, 4051-401 Porto, Portugal
| | - Sérgio F. Sousa
- Associate Laboratory i4HB, Faculty of Medicine, Institute for Health and Bioeconomy, University of Porto, 4050-313 Porto, Portugal;
- UCIBIO—Applied Molecular Biosciences Unit, BioSIM—Department of Biomedicine, Faculty of Medicine, University of Porto, 4051-401 Porto, Portugal
- Correspondence:
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16
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Zhu M, Peng R, Liang X, Lan Z, Tang M, Hou P, Song JH, Mak CSL, Park J, Zheng SE, Huang A, Ma X, Chen R, Chang Q, Logothetis CJ, Jain AK, Lin SH, Katayama H, Hanash S, Wang G. P4HA2-induced prolyl hydroxylation suppresses YAP1-mediated prostate cancer cell migration, invasion, and metastasis. Oncogene 2021; 40:6049-6056. [PMID: 34471235 PMCID: PMC8526415 DOI: 10.1038/s41388-021-02000-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 08/09/2021] [Accepted: 08/20/2021] [Indexed: 02/07/2023]
Abstract
Yes-associated protein 1 (YAP1), a key player in the Hippo pathway, has been shown to play a critical role in tumor progression. However, the role of YAP1 in prostate cancer cell invasion, migration, and metastasis is not well defined. Through functional, transcriptomic, epigenomic, and proteomic analyses, we showed that prolyl hydroxylation of YAP1 plays a critical role in the suppression of cell migration, invasion, and metastasis in prostate cancer. Knockdown (KD) or knockout (KO) of YAP1 led to an increase in cell migration, invasion, and metastasis in prostate cancer cells. Microarray analysis showed that the EMT pathway was activated in Yap1-KD cells. ChIP-seq analysis showed that YAP1 target genes are enriched in pathways regulating cell migration. Mass spectrometry analysis identified P4H prolyl hydroxylase in the YAP1 complex and YAP1 was hydroxylated at multiple proline residues. Proline-to-alanine mutations of YAP1 isoform 3 identified proline 174 as a critical residue, and its hydroxylation suppressed cell migration, invasion, and metastasis. KO of P4ha2 led to an increase in cell migration and invasion, which was reversed upon Yap1 KD. Our study identified a novel regulatory mechanism of YAP1 by which P4HA2-dependent prolyl hydroxylation of YAP1 determines its transcriptional activities and its function in prostate cancer metastasis.
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Affiliation(s)
- Ming Zhu
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ruiqing Peng
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xin Liang
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Zhengdao Lan
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ming Tang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Pingping Hou
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jian H. Song
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Celia Sze Ling Mak
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jiwon Park
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Shui-er Zheng
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ailing Huang
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xingdi Ma
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ruidong Chen
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Qing Chang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Christopher J. Logothetis
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Abhinav K. Jain
- Department of Epigenetics and Molecular Carcinogenesis & Epigenomics Profiling Core Facility, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sue-Hwa Lin
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Hiroyuki Katayama
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Samir Hanash
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Guocan Wang
- Department of Genitourinary Medical Oncology and the David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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17
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Varma S, Orgel JPRO, Schieber JD. Contrasting Local and Macroscopic Effects of Collagen Hydroxylation. Int J Mol Sci 2021; 22:ijms22169068. [PMID: 34445791 PMCID: PMC8396666 DOI: 10.3390/ijms22169068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/16/2021] [Accepted: 08/20/2021] [Indexed: 11/16/2022] Open
Abstract
Collagen is heavily hydroxylated. Experiments show that proline hydroxylation is important to triple helix (monomer) stability, fibril assembly, and interaction of fibrils with other molecules. Nevertheless, experiments also show that even without hydroxylation, type I collagen does assemble into its native D-banded fibrillar structure. This raises two questions. Firstly, even though hydroxylation removal marginally affects macroscopic structure, how does such an extensive chemical change, which is expected to substantially reduce hydrogen bonding capacity, affect local structure? Secondly, how does such a chemical perturbation, which is expected to substantially decrease electrostatic attraction between monomers, affect collagen's mechanical properties? To address these issues, we conduct a benchmarked molecular dynamics study of rat type I fibrils in the presence and absence of hydroxylation. Our simulations reproduce the experimental observation that hydroxylation removal has a minimal effect on collagen's D-band length. We also find that the gap-overlap ratio, monomer width and monomer length are minimally affected. Surprisingly, we find that de-hydroxylation also has a minor effect on the fibril's Young's modulus, and elastic stress build up is also accompanied by tightening of triple-helix windings. In terms of local structure, de-hydroxylation does result in a substantial drop (23%) in inter-monomer hydrogen bonding. However, at the same time, the local structures and inter-monomer hydrogen bonding networks of non-hydroxylated amino acids are also affected. It seems that it is this intrinsic plasticity in inter-monomer interactions that preclude fibrils from undergoing any large changes in macroscopic properties. Nevertheless, changes in local structure can be expected to directly impact collagen's interaction with extra-cellular matrix proteins. In general, this study highlights a key challenge in tissue engineering and medicine related to mapping collagen chemistry to macroscopic properties but suggests a path forward to address it using molecular dynamics simulations.
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Affiliation(s)
- Sameer Varma
- Department of Cell Biology, Microbiology and Molecular Biology, Department of Physics, University of South Florida, Tampa, FL 33620, USA
- Correspondence:
| | - Joseph P. R. O. Orgel
- Department of Biology, Department of Physics, Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA;
| | - Jay D. Schieber
- Department of Chemical and Biological Engineering, Department of Physics, Illinois Institute of Technology, Chicago, IL 60616, USA;
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18
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Angel PM, Rujchanarong D, Pippin S, Spruill L, Drake R. Mass Spectrometry Imaging of Fibroblasts: Promise and Challenge. Expert Rev Proteomics 2021; 18:423-436. [PMID: 34129411 PMCID: PMC8717608 DOI: 10.1080/14789450.2021.1941893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/09/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Fibroblasts maintain tissue and organ homeostasis through output of extracellular matrix that affects nearby cell signaling within the stroma. Altered fibroblast signaling contributes to many disease states and extracellular matrix secreted by fibroblasts has been used to stratify patient by outcome, recurrence, and therapeutic resistance. Recent advances in imaging mass spectrometry allow access to single cell fibroblasts and their ECM niche within clinically relevant tissue samples. AREAS COVERED We review biological and technical challenges as well as new solutions to proteomic access of fibroblast expression within the complex tissue microenvironment. Review topics cover conventional proteomic methods for single fibroblast analysis and current approaches to accessing single fibroblast proteomes by imaging mass spectrometry approaches. Strategies to target and evaluate the single cell stroma proteome on the basis of cell signaling are presented. EXPERT OPINION The promise of defining proteomic signatures from fibroblasts and their extracellular matrix niches is the discovery of new disease markers and the ability to refine therapeutic treatments. Several imaging mass spectrometry approaches exist to define the fibroblast in the setting of pathological changes from clinically acquired samples. Continued technology advances are needed to access and understand the stromal proteome and apply testing to the clinic.
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Affiliation(s)
- Peggi M. Angel
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Bruker-MUSC Center of Excellence, Clinical Glycomics, Medical University of South Carolina, Charleston SC USA
| | - Denys Rujchanarong
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Bruker-MUSC Center of Excellence, Clinical Glycomics, Medical University of South Carolina, Charleston SC USA
| | - Sarah Pippin
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Bruker-MUSC Center of Excellence, Clinical Glycomics, Medical University of South Carolina, Charleston SC USA
| | - Laura Spruill
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC
| | - Richard Drake
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Bruker-MUSC Center of Excellence, Clinical Glycomics, Medical University of South Carolina, Charleston SC USA
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19
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Dzhalilova D, Makarova O. Differences in Tolerance to Hypoxia: Physiological, Biochemical, and Molecular-Biological Characteristics. Biomedicines 2020; 8:E428. [PMID: 33080959 PMCID: PMC7603118 DOI: 10.3390/biomedicines8100428] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 02/07/2023] Open
Abstract
Hypoxia plays an important role in the development of many infectious, inflammatory, and tumor diseases. The predisposition to such disorders is mostly provided by differences in basic tolerance to oxygen deficiency, which we discuss in this review. Except the direct exposure of different-severity hypoxia in decompression chambers or in highland conditions, there are no alternative methods for determining organism tolerance. Due to the variability of the detection methods, differences in many parameters between tolerant and susceptible organisms are still not well-characterized, but some of them can serve as biomarkers of susceptibility to hypoxia. At the moment, several potential biomarkers in conditions after hypoxic exposure have been identified both in experimental animals and humans. The main potential biomarkers are Hypoxia-Inducible Factor (HIF)-1, Heat-Shock Protein 70 (HSP70), and NO. Due to the different mechanisms of various high-altitude diseases, biomarkers may not be highly specific and universal. Therefore, it is extremely important to conduct research on hypoxia susceptibility biomarkers. Moreover, it is important to develop a method for the evaluation of organisms' basic hypoxia tolerance without the necessity of any oxygen deficiency exposure. This can contribute to new personalized medicine approaches' development for diagnostics and the treatment of inflammatory and tumor diseases, taking into account hypoxia tolerance differences.
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Affiliation(s)
- Dzhuliia Dzhalilova
- Department of Immunomorphology of Inflammation, Federal State Budgetary Institution ‘Research Institute of Human Morphology’, Moscow 117418, Russia;
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20
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Long Y, Li X, Li F, Ge G, Liu R, Song G, Li Q, Qiao Z, Cui Z. Transcriptional Programs Underlying Cold Acclimation of Common Carp ( Cyprinus carpio L.). Front Genet 2020; 11:556418. [PMID: 33173532 PMCID: PMC7538616 DOI: 10.3389/fgene.2020.556418] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/28/2020] [Indexed: 12/12/2022] Open
Abstract
Properly regulated transcriptional responses to environmental perturbations are critical for the fitness of fish. Although gene expression profiles in the tissues of common carp upon cold stress were previously characterized, the transcriptional programs underlying cold acclimation are still not well known. In this study, the ability of three common carp strains including Hebao red carp (HB), Songpu mirror carp (SPM) and Yellow river carp (YR) to establish cold resistance after acclimation to a mild hypothermia stress at 18°C for 24 h was confirmed by measurements of the critical thermal minimums (CTMin). The gene expression profiles of the brain and the heart from these strains under both control and cold-acclimated conditions were characterized with RNA-sequencing. The data of the three common carp strains with different genetic background were combined in the differential gene expression analyses to balance the effects of genetic diversity on gene expression. Marked effects of tissue origins on the cold-induced transcriptional responses were revealed by comparing the differentially expressed gene (DEG) lists of the two tissues. Functional categories including spliceosome and RNA splicing were highly enriched in the DEGs of both tissues. However, steroid biosynthesis was specifically enriched in DEGs of the brain and response to unfolded protein was solely enriched in DEGs of the heart. Consistent with the up-regulation of the genes involved in cholesterol biosynthesis, total cholesterol content of the brain was significantly increased upon cold stress. Moreover, cold-induced alternative splicing (AS) events were explored and AS of the rbmx (RNA-binding motif protein, X chromosome) gene was confirmed by real-time quantitative PCR. Finally, a core set of cold responsive genes (CRGs) were defined by comparative transcriptomic analyses. Our data provide insights into the transcriptional programs underlying cold acclimation of common carp and offer valuable clues for further investigating the genetic determinants for cold resistance of farmed fish.
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Affiliation(s)
- Yong Long
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Xixi Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Fengyang Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Guodong Ge
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Ran Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Guili Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Qing Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Zhigang Qiao
- Fisheries College, Henan Normal University, Xinxiang, China
| | - Zongbin Cui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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21
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Angel PM, Spruill L, Jefferson M, Bethard JR, Ball LE, Hughes-Halbert C, Drake RR. Zonal regulation of collagen-type proteins and posttranslational modifications in prostatic benign and cancer tissues by imaging mass spectrometry. Prostate 2020; 80:1071-1086. [PMID: 32687633 PMCID: PMC7857723 DOI: 10.1002/pros.24031] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/01/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND The emergence of reactive stroma is a hallmark of prostate cancer (PCa) progression and a potential source for prognostic and diagnostic markers of PCa. Collagen is a main component of reactive stroma and changes systematically and quantitatively to reflect the course of PCa, yet has remained undefined due to a lack of tools that can define collagen protein structure. Here we use a novel collagen-targeting proteomics approach to investigate zonal regulation of collagen-type proteins in PCa prostatectomies. METHODS Prostatectomies from nine patients were divided into zones containing 0%, 5%, 20%, 70% to 80% glandular tissue and 0%, 5%, 25%, 70% by mass of PCa tumor following the McNeal model. Tissue sections from zones were graded by a pathologist for Gleason score, percent tumor present, percent prostatic intraepithelial neoplasia and/or inflammation (INF). High-resolution accurate mass collagen targeting proteomics was done on a select subset of tissue sections from patient-matched tumor or nontumor zones. Imaging mass spectrometry was used to investigate collagen-type regulation corresponding to pathologist-defined regions. RESULTS Complex collagen proteomes were detected from all zones. COL17A and COL27A increased in zones of INF compared with zones with tumor present. COL3A1, COL4A5, and COL8A2 consistently increased in zones with tumor content, independent of tumor size. Collagen hydroxylation of proline (HYP) was altered in tumor zones compared with zones with INF and no tumor. COL3A1 and COL5A1 showed significant changes in HYP peptide ratios within tumor compared with zones of INF (2.59 ± 0.29, P value: .015; 3.75 ± 0.96 P value .036, respectively). By imaging mass spectrometry COL3A1 showed defined localization and regulation to tumor pathology. COL1A1 and COL1A2 showed gradient regulation corresponding to PCa pathology across zones. Pathologist-defined tumor regions showed significant increases in COL1A1 HYP modifications compared with COL1A2 HYP modifications. Certain COL1A1 and COL1A2 peptides could discriminate between pathologist-defined tumor and inflammatory regions. CONCLUSIONS Site-specific posttranslational regulation of collagen structure by proline hydroxylation may be involved in reactive stroma associated with PCa progression. Translational and posttranslational regulation of collagen protein structure has potential for new markers to understand PCa progression and outcomes.
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Affiliation(s)
- Peggi M. Angel
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Proteomics Center, Medical University of South Carolina, Charleston, SC
| | - Laura Spruill
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC
| | - Melanie Jefferson
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC
| | - Jennifer R. Bethard
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Proteomics Center, Medical University of South Carolina, Charleston, SC
| | - Lauren E. Ball
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Proteomics Center, Medical University of South Carolina, Charleston, SC
| | - Chanita Hughes-Halbert
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC
| | - Richard R. Drake
- Department of Cell and Molecular Pharmacology & Experimental Therapeutics, Proteomics Center, Medical University of South Carolina, Charleston, SC
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22
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Wu J, Yang J, Cho WC, Zheng Y. Argonaute proteins: Structural features, functions and emerging roles. J Adv Res 2020; 24:317-324. [PMID: 32455006 PMCID: PMC7235612 DOI: 10.1016/j.jare.2020.04.017] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/23/2020] [Accepted: 04/26/2020] [Indexed: 02/07/2023] Open
Abstract
Argonaute proteins are highly conserved in almost all organisms. They not only involve in the biogenesis of small regulatory RNAs, but also regulate gene expression and defend against foreign pathogen invasion via small RNA-mediated gene silencing pathways. As a key player in these pathways, the abnormal expression and/or mis-modifications of Argonaute proteins lead to the disorder of small RNA biogenesis and functions, thus influencing multiply biological processes and disease development, especially cancer. In this review, we focus on the post-translational modifications and novel functions of Argonaute proteins in alternative splicing, host defense and genome editing.
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Key Words
- AKT3, AKT serine/threonine kinase 3
- Argonaute protein
- CCR4-NOT, carbon catabolite repressor 4-negative on TATA
- CRISPR-Cas9, clustered regularly interspaced short palindromic repeats (CRISPR)-associated protein 9 (cas9)
- DGCR8, DiGeorge syndrome critical region gene 8
- EGFR, epidermal growth factor receptor
- GW182 protein, glycine/tryptophan repeats-containing protein with molecular weight of 182 kDa
- H3K9, histone H3 lysine 9
- Hsp70/90, heat shock proteins 70/90
- JEV, Japanese encephalitis virus
- KRAS, Kirsten rat sarcoma oncogene
- P4H, prolyl 4-hydroxylase
- PAM, protospacer adjacent motif
- PAZ, PIWI-argonaute-zwille
- PIWI, P-element-induced wimpy testis
- Post-translational modification
- RISCs, small RNA-induced silencing complexes
- Small RNA
- TRBP, the transactivating response (TAR) RNA-binding protein
- TRIM71/LIN41, tripartite motif-containing 71, known as Lin41
- WSSV, white spot syndrome virus
- miRNAs
- piRNAs
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Affiliation(s)
- Jin'en Wu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou 730046, China
| | - Jing Yang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou 730046, China
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - Yadong Zheng
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, CAAS, Lanzhou 730046, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
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23
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Liao C, Zhang Q. Understanding the Oxygen-Sensing Pathway and Its Therapeutic Implications in Diseases. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:1584-1595. [PMID: 32339495 DOI: 10.1016/j.ajpath.2020.04.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 04/03/2020] [Accepted: 04/09/2020] [Indexed: 12/14/2022]
Abstract
Maintaining oxygen homeostasis is a most basic cellular process for adapting physiological oxygen variations, and its abnormality typically leads to various disorders in the human body. The key molecules of the oxygen-sensing system include the transcriptional regulator hypoxia-inducible factor (HIF), which controls a wide range of oxygen responsive target genes (eg, EPO and VEGF), certain members of the oxygen/2-oxoglutarate-dependent dioxygenase family, including the HIF proline hydroxylase (PHD, alias EGLN), and an E3 ubiquitin ligase component for HIF destruction called von Hippel-Lindau. In this review, we summarize the physiological role and highlight the pathologic function for each protein of the oxygen-sensing system. A better understanding of their molecular mechanisms of action will help uncover novel therapeutic targets and develop more effective treatment approaches for related human diseases, including cancer.
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Affiliation(s)
- Chengheng Liao
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Qing Zhang
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas.
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24
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Mindt M, Walter T, Kugler P, Wendisch VF. Microbial Engineering for Production of N-Functionalized Amino Acids and Amines. Biotechnol J 2020; 15:e1900451. [PMID: 32170807 DOI: 10.1002/biot.201900451] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 03/04/2020] [Indexed: 01/04/2023]
Abstract
N-functionalized amines play important roles in nature and occur, for example, in the antibiotic vancomycin, the immunosuppressant cyclosporine, the cytostatic actinomycin, the siderophore aerobactin, the cyanogenic glucoside linamarin, and the polyamine spermidine. In the pharmaceutical and fine-chemical industries N-functionalized amines are used as building blocks for the preparation of bioactive molecules. Processes based on fermentation and on enzyme catalysis have been developed to provide sustainable manufacturing routes to N-alkylated, N-hydroxylated, N-acylated, or other N-functionalized amines including polyamines. Metabolic engineering for provision of precursor metabolites is combined with heterologous N-functionalizing enzymes such as imine or ketimine reductases, opine or amino acid dehydrogenases, N-hydroxylases, N-acyltransferase, or polyamine synthetases. Recent progress and applications of fermentative processes using metabolically engineered bacteria and yeasts along with the employed enzymes are reviewed and the perspectives on developing new fermentative processes based on insight from enzyme catalysis are discussed.
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Affiliation(s)
- Melanie Mindt
- Genetics of Prokaryotes, Biology and CeBiTec, Bielefeld University, Bielefeld, 33615, Germany.,BU Bioscience, Wageningen University and Research, Wageningen, 6708 PB, The Netherlands
| | - Tatjana Walter
- Genetics of Prokaryotes, Biology and CeBiTec, Bielefeld University, Bielefeld, 33615, Germany
| | - Pierre Kugler
- Genetics of Prokaryotes, Biology and CeBiTec, Bielefeld University, Bielefeld, 33615, Germany
| | - Volker F Wendisch
- Genetics of Prokaryotes, Biology and CeBiTec, Bielefeld University, Bielefeld, 33615, Germany
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25
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Zurlo G, Zhang Q. Adenylosuccinate lyase hydroxylation contributes to triple negative breast cancer via the activation of cMYC. Mol Cell Oncol 2020; 7:1707045. [PMID: 32158921 DOI: 10.1080/23723556.2019.1707045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 10/25/2022]
Abstract
Hydroxylation is a post-translational modification affecting protein stability, activity or interactome. We identified adenylosuccinate lyase (ADSL) as a novel hydroxylation substrate in triple negative breast cancer. Hydroxylation affects ADSL enzymatic activity and, therefore, adenosine levels. Adenosine, in turn, favors the translation of cMYC, triggering its oncogenic downstream cascade.
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Affiliation(s)
- Giada Zurlo
- Department of Pathology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Qing Zhang
- Department of Pathology, UT Southwestern Medical Center, Dallas, Texas, USA
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26
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Luo A, Chen Y. Label-Free Interactome Analysis Revealed an Essential Role of CUL3-KEAP1 Complex in Mediating the Ubiquitination and Degradation of PHD2. J Proteome Res 2020; 19:260-268. [PMID: 31763849 DOI: 10.1021/acs.jproteome.9b00513] [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] [Indexed: 01/07/2023]
Abstract
Prolyl hydroxylase domain-containing protein 2 (PHD2/EGLN1) is a key regulatory enzyme that plays a fundamental role in the cellular hypoxic response pathway, mediating proline hydroxylation-dependent protein degradation of selected target proteins. However, the regulation of PHD2 homeostasis at the protein level is not well understood. Here, we perform label-free quantitative interactome analysis through immunoprecipitation coupled with mass spectrometry analysis. To minimize the side effects caused by ectopic overexpression, in HeLa cells, we stably overexpressed Flag-tagged PHD2 while suppressing the endogenous PHD2 by using an shRNA targeting its 3' UTR region. We identified and validated Cullin 3 as a novel PHD2 interactor in vivo. Through candidate screening, we further identified CUL3-KEAP1 E3 ubiquitin ligase complex as the major enzyme that regulates PHD2 degradation. Overexpression of either CUL3, KEAP1, or both significantly increases PHD2 ubiquitination and reduces PHD2 protein abundance. The knockdown of CUL3 or KEAP1 decreased PHD2 ubiquitination and inhibited PHD2 degradation. Accordingly, loss of the CUL3-KEAP1 complex under hypoxia promoted PHD2 stabilization and led to significantly reduced abundance of the PHD2 target, hypoxia-inducible factor 1A (HIF1A). Thus, CUL3-KEAP1 is an essential pathway that regulates PHD2 ubiquitination and degradation in cells.
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Affiliation(s)
- Ang Luo
- Department of Biochemistry, Molecular Biology and Biophysics , The University of Minnesota at Twin Cities , Minneapolis , Minnesota 55455 , United States
| | - Yue Chen
- Department of Biochemistry, Molecular Biology and Biophysics , The University of Minnesota at Twin Cities , Minneapolis , Minnesota 55455 , United States
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27
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Navarro Quiroz E, Chavez-Estrada V, Macias-Ochoa K, Ayala-Navarro MF, Flores-Aguilar AS, Morales-Navarrete F, de la Cruz Lopez F, Gomez Escorcia L, Musso CG, Aroca Martinez G, Gonzales Torres H, Diaz Perez A, Cadena Bonfanti A, Sarmiento Gutierrez J, Meza J, Diaz Arroyo E, Bello Lemus Y, Ahmad M, Navarro Quiroz R. Epigenetic Mechanisms and Posttranslational Modifications in Systemic Lupus Erythematosus. Int J Mol Sci 2019; 20:E5679. [PMID: 31766160 PMCID: PMC6888206 DOI: 10.3390/ijms20225679] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/08/2019] [Accepted: 10/19/2019] [Indexed: 12/15/2022] Open
Abstract
The complex physiology of eukaryotic cells is regulated through numerous mechanisms, including epigenetic changes and posttranslational modifications. The wide-ranging diversity of these mechanisms constitutes a way of dynamic regulation of the functionality of proteins, their activity, and their subcellular localization as well as modulation of the differential expression of genes in response to external and internal stimuli that allow an organism to respond or adapt to accordingly. However, alterations in these mechanisms have been evidenced in several autoimmune diseases, including systemic lupus erythematosus (SLE). The present review aims to provide an approach to the current knowledge of the implications of these mechanisms in SLE pathophysiology.
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Affiliation(s)
- Elkin Navarro Quiroz
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
| | - Valeria Chavez-Estrada
- School of Medicine, Universidad de Guadalajara, Jalisco 44100, Mexico; (V.C.-E.); (K.M.-O.); (M.F.A.-N.)
| | - Karime Macias-Ochoa
- School of Medicine, Universidad de Guadalajara, Jalisco 44100, Mexico; (V.C.-E.); (K.M.-O.); (M.F.A.-N.)
| | | | | | | | - Fernando de la Cruz Lopez
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
| | - Lorena Gomez Escorcia
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
| | - Carlos G. Musso
- Department of Nephrology, Hospital Italiano de Buenos Aires, Buenos Aires B1675, Argentina;
| | - Gustavo Aroca Martinez
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
- Department of Nephrology, Clinica de la Costa, Barranquilla 080001, Colombia
| | - Henry Gonzales Torres
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
| | - Anderson Diaz Perez
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
- Faculty of Health Sciences, Corporacion Universitaria Rafael Nuñez, Cartagena de Indias 130001, Colombia
| | - Andres Cadena Bonfanti
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
- Department of Nephrology, Clinica de la Costa, Barranquilla 080001, Colombia
| | - Joany Sarmiento Gutierrez
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
- Department of Nephrology, Clinica de la Costa, Barranquilla 080001, Colombia
| | - Jainy Meza
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
| | | | - Yesit Bello Lemus
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
| | - Mostapha Ahmad
- Faculty of Basic and Biomedical Sciences, Universidad Simon Bolivar, Barranquilla 080001, Colombia; (F.d.l.C.L.); (L.G.E.); (G.A.M.); (H.G.T.); (A.D.P.); (A.C.B.); (J.S.G.); (J.M.); (Y.B.L.); (M.A.)
| | - Roberto Navarro Quiroz
- CMCC—Centro de Matemática, Computação e Cognição, Laboratório do Biología Computacional e Bioinformática—LBCB, Universidade Federal do ABC, Sao Paulo 01023, Brazil;
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28
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Chen J, Wang S, Zhang Z, Richards CI, Xu R. Heat shock protein 47 (HSP47) binds to discoidin domain-containing receptor 2 (DDR2) and regulates its protein stability. J Biol Chem 2019; 294:16846-16854. [PMID: 31570520 DOI: 10.1074/jbc.ra119.009312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 09/06/2019] [Indexed: 12/20/2022] Open
Abstract
Cell-collagen interactions are crucial for cell migration and invasion during cancer development and progression. Heat shock protein 47 (HSP47) is an endoplasmic reticulum-resident molecular chaperone that facilitates collagen maturation and deposition. It has been previously shown that HSP47 expression in cancer cells is crucial for cancer invasiveness. However, exogenous collagen cannot rescue cell invasion in HSP47-silenced cancer cells, suggesting that other HSP47 targets contribute to cancer cell invasion. Here, we show that HSP47 expression is required for the stability and cell-surface expression of discoidin domain-containing receptor 2 (DDR2) in breast cancer tissues. HSP47 silencing reduced DDR2 protein stability, accompanied by suppressed cell migration and invasion. Co-immunoprecipitation results revealed that HSP47 binds to the DDR2 ectodomain. Using a photoconvertible technique and total internal reflection fluorescence microscopy, we further demonstrate that HSP47 expression significantly sustains the membrane localization of the DDR2 protein. These results suggest that binding of HSP47 to DDR2 increases DDR2 stability and regulates its membrane dynamics and thereby enhances cancer cell migration and invasion. Given that DDR2 has a crucial role in the epithelial-to-mesenchymal transition and cancer progression, targeting the HSP47-DDR2 interaction might be a potential strategy for inhibiting DDR2-dependent cancer progression.
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Affiliation(s)
- Jie Chen
- Markey Cancer Center, University of Kentucky, Lexington, Kentucky 40536
| | - Shike Wang
- Markey Cancer Center, University of Kentucky, Lexington, Kentucky 40536
| | - Zhihui Zhang
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506
| | | | - Ren Xu
- Markey Cancer Center, University of Kentucky, Lexington, Kentucky 40536 .,Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky 40536
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29
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Lin HY, Ko CY, Kao TJ, Yang WB, Tsai YT, Chuang JY, Hu SL, Yang PY, Lo WL, Hsu TI. CYP17A1 Maintains the Survival of Glioblastomas by Regulating SAR1-Mediated Endoplasmic Reticulum Health and Redox Homeostasis. Cancers (Basel) 2019; 11:cancers11091378. [PMID: 31527549 PMCID: PMC6770831 DOI: 10.3390/cancers11091378] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 12/30/2022] Open
Abstract
Cytochrome P450 (CYP) 17A1 is an important steroidogenic enzyme harboring 17α-hydroxylase and performing 17,20 lyase activities in multiple steps of steroid hormone synthesis, including dehydroepiandrosterone (DHEA) biosynthesis. Previously, we showed that CYP17A1-mediated DHEA production clearly protects glioblastomas from temozolomide-induced apoptosis, leading to drug resistance. Herein, we attempt to clarify whether the inhibition of CYP17A1 has a tumor-suppressive effect, and to determine the steroidogenesis-independent functions of CYP17A1 in glioblastomas. Abiraterone, an inhibitor of CYP17A1, significantly inhibits the proliferation of A172, T98G, and PT#3 (the primary glioblastoma cells) by inducing apoptosis. In parallel, abiraterone potently suppresses tumor growth in mouse models through transplantation of PT#3 cells to the back or to the brain. Based on evidence that abiraterone induces endoplasmic reticulum (ER) stress, followed by the accumulation of reactive oxygen species (ROS), CYP17A1 is important for ER health and redox homeostasis. To confirm our hypothesis, we showed that CYP17A1 overexpression prevents the initiation of ER stress and attenuates ROS production by regulating SAR1a/b expression. Abiraterone dissociates SAR1a/b from ER-localized CYP17A1, and induces SAR1a/b ubiquitination, leading to degradation. Furthermore, SAR1 overexpression rescues abiraterone-induced apoptosis and impairs redox homeostasis. In addition to steroid hormone synthesis, CYP17A1 associates with SAR1a/b to regulate protein processing and maintain ER health in glioblastomas.
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Affiliation(s)
- Hong-Yi Lin
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
| | - Chiung-Yuan Ko
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Tzu-Jen Kao
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
| | - Wen-Bin Yang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yu-Ting Tsai
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Jian-Ying Chuang
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Siou-Lian Hu
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
| | - Pei-Yu Yang
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
| | - Wei-Lun Lo
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- Division of Neurosurgery, Taipei Medical University-Shuang-Ho Hospital, New Taipei City 23561, Taiwan.
| | - Tsung-I Hsu
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, 11031 Taipei, Taiwan.
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei 11031, Taiwan.
- TMU Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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30
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Lassak J, Koller F, Krafczyk R, Volkwein W. Exceptionally versatile – arginine in bacterial post-translational protein modifications. Biol Chem 2019; 400:1397-1427. [DOI: 10.1515/hsz-2019-0182] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 06/01/2019] [Indexed: 12/24/2022]
Abstract
Abstract
Post-translational modifications (PTM) are the evolutionary solution to challenge and extend the boundaries of genetically predetermined proteomic diversity. As PTMs are highly dynamic, they also hold an enormous regulatory potential. It is therefore not surprising that out of the 20 proteinogenic amino acids, 15 can be post-translationally modified. Even the relatively inert guanidino group of arginine is subject to a multitude of mostly enzyme mediated chemical changes. The resulting alterations can have a major influence on protein function. In this review, we will discuss how bacteria control their cellular processes and develop pathogenicity based on post-translational protein-arginine modifications.
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Affiliation(s)
- Jürgen Lassak
- Center for Integrated Protein Science Munich (CiPSM), Department of Biology I, Microbiology , Ludwig-Maximilians-Universität München , Grosshaderner Strasse 2-4 , D-82152 Planegg , Germany
| | - Franziska Koller
- Center for Integrated Protein Science Munich (CiPSM), Department of Biology I, Microbiology , Ludwig-Maximilians-Universität München , Grosshaderner Strasse 2-4 , D-82152 Planegg , Germany
| | - Ralph Krafczyk
- Center for Integrated Protein Science Munich (CiPSM), Department of Biology I, Microbiology , Ludwig-Maximilians-Universität München , Grosshaderner Strasse 2-4 , D-82152 Planegg , Germany
| | - Wolfram Volkwein
- Center for Integrated Protein Science Munich (CiPSM), Department of Biology I, Microbiology , Ludwig-Maximilians-Universität München , Grosshaderner Strasse 2-4 , D-82152 Planegg , Germany
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31
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Strowitzki MJ, Cummins EP, Taylor CT. Protein Hydroxylation by Hypoxia-Inducible Factor (HIF) Hydroxylases: Unique or Ubiquitous? Cells 2019; 8:cells8050384. [PMID: 31035491 PMCID: PMC6562979 DOI: 10.3390/cells8050384] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 04/24/2019] [Accepted: 04/24/2019] [Indexed: 02/07/2023] Open
Abstract
All metazoans that utilize molecular oxygen (O2) for metabolic purposes have the capacity to adapt to hypoxia, the condition that arises when O2 demand exceeds supply. This is mediated through activation of the hypoxia-inducible factor (HIF) pathway. At physiological oxygen levels (normoxia), HIF-prolyl hydroxylases (PHDs) hydroxylate proline residues on HIF-α subunits leading to their destabilization by promoting ubiquitination by the von-Hippel Lindau (VHL) ubiquitin ligase and subsequent proteasomal degradation. HIF-α transactivation is also repressed in an O2-dependent way due to asparaginyl hydroxylation by the factor-inhibiting HIF (FIH). In hypoxia, the O2-dependent hydroxylation of HIF-α subunits by PHDs and FIH is reduced, resulting in HIF-α accumulation, dimerization with HIF-β and migration into the nucleus to induce an adaptive transcriptional response. Although HIFs are the canonical substrates for PHD- and FIH-mediated protein hydroxylation, increasing evidence indicates that these hydroxylases may also have alternative targets. In addition to PHD-conferred alterations in protein stability, there is now evidence that hydroxylation can affect protein activity and protein/protein interactions for alternative substrates. PHDs can be pharmacologically inhibited by a new class of drugs termed prolyl hydroxylase inhibitors which have recently been approved for the treatment of anemia associated with chronic kidney disease. The identification of alternative targets of HIF hydroxylases is important in order to fully elucidate the pharmacology of hydroxylase inhibitors (PHI). Despite significant technical advances, screening, detection and verification of alternative functional targets for PHDs and FIH remain challenging. In this review, we discuss recently proposed non-HIF targets for PHDs and FIH and provide an overview of the techniques used to identify these.
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Affiliation(s)
- Moritz J Strowitzki
- UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland.
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Eoin P Cummins
- UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland.
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Cormac T Taylor
- UCD Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland.
- School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
- Systems Biology Ireland, University College Dublin, Belfield, Dublin 4, Ireland.
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32
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Baek JH, Yun HS, Kwon GT, Kim JY, Lee CW, Song JY, Um HD, Kang CM, Park JK, Kim JS, Kim EH, Hwang SG. PLOD3 promotes lung metastasis via regulation of STAT3. Cell Death Dis 2018; 9:1138. [PMID: 30442941 PMCID: PMC6237925 DOI: 10.1038/s41419-018-1186-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/06/2018] [Accepted: 10/24/2018] [Indexed: 01/01/2023]
Abstract
Procollagen-lysine, 2-oxoglutarate 5-dioxygenase (PLOD3), a membrane-bound homodimeric enzyme, hydroxylates lysyl residues in collagen-like peptides; however, its role in lung cancer is unknown. This study aimed to investigate the role of PLOD3 as a pro-metastatic factor and to elucidate the underlying mechanism. First, we experimentally confirmed the release of PLOD3 in circulation in animal models, rendering it a potential serum biomarker for lung cancer in humans. Thereafter, we investigated the effects of PLOD3 overexpression and downregulation on cancer cell invasion and migration in vitro and in vivo, using human lung cancer cell lines and a mouse tumor xenograft model, respectively. Further, PLOD3 levels were determined in lung tissue samples from lung cancer patients. Functional analyses revealed that PLOD3 interacts with STAT3, thereby expressing matrix metalloproteinases (MMP-2 and MMP-9) and with urokinase plasminogen activator (uPA) to enhance tumor metastasis. PLOD3 and the STAT3 pathway were significantly correlated in the metastatic foci of lung cancer patients; PLOD3–STAT3 levels were highly correlated with a poor prognosis. These results indicate that PLOD3 promotes lung cancer metastasis in a RAS-MAP kinase pathway-independent manner. Therefore, secreted PLOD3 serves as a potent inducer of lung cancer metastasis and a potential therapeutic target to enhance survival in lung cancer.
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Affiliation(s)
- Jeong-Hwa Baek
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea.,Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 440-746, Korea
| | - Hong Shik Yun
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Gyoo Taik Kwon
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Ju-Young Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Chang-Woo Lee
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, 440-746, Korea
| | - Jie-Young Song
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Hong-Duck Um
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Chang-Mo Kang
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Jong Kuk Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Jae-Sung Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea
| | - Eun Ho Kim
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea.
| | - Sang-Gu Hwang
- Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, 01812, Korea.
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33
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Ow CPC, Ngo JP, Ullah MM, Barsha G, Meex RC, Watt MJ, Hilliard LM, Koeners MP, Evans RG. Absence of renal hypoxia in the subacute phase of severe renal ischemia-reperfusion injury. Am J Physiol Renal Physiol 2018; 315:F1358-F1369. [PMID: 30110566 PMCID: PMC6293301 DOI: 10.1152/ajprenal.00249.2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Tissue hypoxia has been proposed as an important event in renal ischemia-reperfusion injury (IRI), particularly during the period of ischemia and in the immediate hours following reperfusion. However, little is known about renal oxygenation during the subacute phase of IRI. We employed four different methods to assess the temporal and spatial changes in tissue oxygenation during the subacute phase (24 h and 5 days after reperfusion) of a severe form of renal IRI in rats. We hypothesized that the kidney is hypoxic 24 h and 5 days after an hour of bilateral renal ischemia, driven by a disturbed balance between renal oxygen delivery (Do2) and oxygen consumption (V̇o2). Renal Do2 was not significantly reduced in the subacute phase of IRI. In contrast, renal V̇o2 was 55% less 24 h after reperfusion and 49% less 5 days after reperfusion than after sham ischemia. Inner medullary tissue Po2, measured by radiotelemetry, was 25 ± 12% (mean ± SE) greater 24 h after ischemia than after sham ischemia. By 5 days after reperfusion, tissue Po2 was similar to that in rats subjected to sham ischemia. Tissue Po2 measured by Clark electrode was consistently greater 24 h, but not 5 days, after ischemia than after sham ischemia. Cellular hypoxia, assessed by pimonidazole adduct immunohistochemistry, was largely absent at both time points, and tissue levels of hypoxia-inducible factors were downregulated following renal ischemia. Thus, in this model of severe IRI, tissue hypoxia does not appear to be an obligatory event during the subacute phase, likely because of the markedly reduced oxygen consumption.
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Affiliation(s)
- Connie P C Ow
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Department of Physiology, Monash University , Melbourne, Victoria , Australia
| | - Jennifer P Ngo
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Department of Physiology, Monash University , Melbourne, Victoria , Australia
| | - Md Mahbub Ullah
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Department of Physiology, Monash University , Melbourne, Victoria , Australia
| | - Giannie Barsha
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Department of Physiology, Monash University , Melbourne, Victoria , Australia
| | - Ruth C Meex
- Department of Human Biology, NUTRIM School of Nutritional and Translational Research in Metabolism, Maastricht University Medical Centre , Maastricht , The Netherlands
| | - Matthew J Watt
- Metabolism, Diabetes and Obesity Program, Biomedicine Discovery Institute, Department of Physiology, Monash University, Melbourne, Victoria, Australia
| | - Lucinda M Hilliard
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Department of Physiology, Monash University , Melbourne, Victoria , Australia
| | - Maarten P Koeners
- School of Physiology, Pharmacology and Neuroscience, Biomedical Sciences, University of Bristol , Bristol , United Kingdom.,Institute of Biomedical and Clinical Science, University of Exeter Medical School , Exeter , United Kingdom
| | - Roger G Evans
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Department of Physiology, Monash University , Melbourne, Victoria , Australia
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34
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Zhang J, Zhang Q. VHL and Hypoxia Signaling: Beyond HIF in Cancer. Biomedicines 2018; 6:biomedicines6010035. [PMID: 29562667 PMCID: PMC5874692 DOI: 10.3390/biomedicines6010035] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 03/12/2018] [Accepted: 03/16/2018] [Indexed: 12/12/2022] Open
Abstract
Von Hippel-Lindau (VHL) is an important tumor suppressor that is lost in the majority of clear cell carcinoma of renal cancer (ccRCC). Its regulatory pathway involves the activity of E3 ligase, which targets hypoxia inducible factor α (including HIF1α and HIF2α) for proteasome degradation. In recent years, emerging literature suggests that VHL also possesses other HIF-independent functions. This review will focus on VHL-mediated signaling pathways involving the latest identified substrates/binding partners, including N-Myc downstream-regulated gene 3 (NDRG3), AKT, and G9a, etc., and their physiological roles in hypoxia signaling and cancer. We will also discuss the crosstalk between VHL and NF-κB signaling. Lastly, we will review the latest findings on targeting VHL signaling in cancer.
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Affiliation(s)
- Jing Zhang
- Department of Pathology and Laboratory Medicine, Lineberger Comprehensive Cancer Center, UNC-Chapel Hill, Chapel Hill, NC 27599, USA.
| | - Qing Zhang
- Department of Pathology and Laboratory Medicine, Lineberger Comprehensive Cancer Center, UNC-Chapel Hill, Chapel Hill, NC 27599, USA.
- Department of Pharmacology, UNC-Chapel Hill, Chapel Hill, NC 27599, USA.
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