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Ge WD, Du TT, Wang CY, Sun LN, Wang YQ. Calcium signaling crosstalk between the endoplasmic reticulum and mitochondria, a new drug development strategies of kidney diseases. Biochem Pharmacol 2024; 225:116278. [PMID: 38740223 DOI: 10.1016/j.bcp.2024.116278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
Calcium (Ca2+) acts as a second messenger and constitutes a complex and large information exchange system between the endoplasmic reticulum (ER) and mitochondria; this process is involved in various life activities, such as energy metabolism, cell proliferation and apoptosis. Increasing evidence has suggested that alterations in Ca2+ crosstalk between the ER and mitochondria, including alterations in ER and mitochondrial Ca2+ channels and related Ca2+ regulatory proteins, such as sarco/endoplasmic reticulum Ca2+-ATPase (SERCA), inositol 1,4,5-trisphosphate receptor (IP3R), and calnexin (CNX), are closely associated with the development of kidney disease. Therapies targeting intracellular Ca2+ signaling have emerged as an emerging field in the treatment of renal diseases. In this review, we focused on recent advances in Ca2+ signaling, ER and mitochondrial Ca2+ monitoring methods and Ca2+ homeostasis in the development of renal diseases and sought to identify new targets and insights for the treatment of renal diseases by targeting Ca2+ channels or related Ca2+ regulatory proteins.
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Affiliation(s)
- Wen-Di Ge
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Tian-Tian Du
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Cao-Yang Wang
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Lu-Ning Sun
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China.
| | - Yong-Qing Wang
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China.
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2
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Roy A, Chakraborty AR, DePamphilis ML. PIKFYVE inhibitors trigger interleukin-24-dependent cell death of autophagy-dependent melanoma. Mol Oncol 2024; 18:988-1011. [PMID: 38414326 PMCID: PMC10994231 DOI: 10.1002/1878-0261.13607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/16/2024] [Accepted: 02/02/2024] [Indexed: 02/29/2024] Open
Abstract
Inhibitors specifically targeting the 1-phosphatidylinositol 3-phosphate 5-kinase (PIKFYVE) disrupt lysosome homeostasis, thereby selectively terminating autophagy-dependent human cancer cells in vivo as well as in vitro without harming the viability of nonmalignant cells. To elucidate the mechanism by which PIKFYVE inhibition induces cell death, autophagy-dependent melanoma cells were compared with normal foreskin fibroblasts. RNA sequence profiling suggested that PIKFYVE inhibitors upregulated an endoplasmic reticulum (ER) stress response involving interleukin-24 (IL24; also known as MDA7) selectively in melanoma cells. Subsequent biochemical and genetic analyses confirmed these results and extended them to tumor xenografts in which tumor formation and expansion were inhibited. IL24 expression was upregulated by the DDIT3/CHOP/CEBPz transcription factor, a component of the PERK-dependent ER-stress response. Ectopic expression of IL24-induced cell death in melanoma cells, but not in foreskin fibroblasts, whereas ablation of the IL24 gene in melanoma cells prevented death. IL24 upregulation was triggered specifically by PIKFYVE inhibition. Thus, unlike thapsigargin and tunicamycin, which induce ER-stress indiscriminately, PIKFYVE inhibitors selectively terminated PIKFYVE-sensitive melanoma by inducing IL24-dependent ER-stress. Moreover, induction of cell death by a PIKFYVE inhibitor together with ectopic expression of IL24 protein was cumulative, thereby confirming the therapeutic potential of PIKFYVE inhibitors in the treatment of melanoma.
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Affiliation(s)
- Ajit Roy
- National Institute of Child Health & Human DevelopmentNational Institutes of HealthBethesdaMDUSA
| | - Arup R. Chakraborty
- National Institute of Child Health & Human DevelopmentNational Institutes of HealthBethesdaMDUSA
| | - Melvin L. DePamphilis
- National Institute of Child Health & Human DevelopmentNational Institutes of HealthBethesdaMDUSA
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3
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Yu X, Dang L, Zhang R, Yang W. Therapeutic Potential of Targeting the PERK Signaling Pathway in Ischemic Stroke. Pharmaceuticals (Basel) 2024; 17:353. [PMID: 38543139 PMCID: PMC10974972 DOI: 10.3390/ph17030353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/15/2024] [Accepted: 03/05/2024] [Indexed: 04/01/2024] Open
Abstract
Many pathologic states can lead to the accumulation of unfolded/misfolded proteins in cells. This causes endoplasmic reticulum (ER) stress and triggers the unfolded protein response (UPR), which encompasses three main adaptive branches. One of these UPR branches is mediated by protein kinase RNA-like ER kinase (PERK), an ER stress sensor. The primary consequence of PERK activation is the suppression of global protein synthesis, which reduces ER workload and facilitates the recovery of ER function. Ischemic stroke induces ER stress and activates the UPR. Studies have demonstrated the involvement of the PERK pathway in stroke pathophysiology; however, its role in stroke outcomes requires further clarification. Importantly, considering mounting evidence that supports the therapeutic potential of the PERK pathway in aging-related cognitive decline and neurodegenerative diseases, this pathway may represent a promising therapeutic target in stroke. Therefore, in this review, our aim is to discuss the current understanding of PERK in ischemic stroke, and to summarize pharmacologic tools for translational stroke research that targets PERK and its associated pathways.
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Affiliation(s)
| | | | | | - Wei Yang
- Multidisciplinary Brain Protection Program, Department of Anesthesiology, Duke University Medical Center, Box 3094, 303 Research Drive, Durham, NC 27710, USA
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4
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Saaoud F, Lu Y, Xu K, Shao Y, Praticò D, Vazquez-Padron RI, Wang H, Yang X. Protein-rich foods, sea foods, and gut microbiota amplify immune responses in chronic diseases and cancers - Targeting PERK as a novel therapeutic strategy for chronic inflammatory diseases, neurodegenerative disorders, and cancer. Pharmacol Ther 2024; 255:108604. [PMID: 38360205 PMCID: PMC10917129 DOI: 10.1016/j.pharmthera.2024.108604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/05/2024] [Accepted: 01/29/2024] [Indexed: 02/17/2024]
Abstract
The endoplasmic reticulum (ER) is a cellular organelle that is physiologically responsible for protein folding, calcium homeostasis, and lipid biosynthesis. Pathological stimuli such as oxidative stress, ischemia, disruptions in calcium homeostasis, and increased production of normal and/or folding-defective proteins all contribute to the accumulation of misfolded proteins in the ER, causing ER stress. The adaptive response to ER stress is the activation of unfolded protein response (UPR), which affect a wide variety of cellular functions to maintain ER homeostasis or lead to apoptosis. Three different ER transmembrane sensors, including PKR-like ER kinase (PERK), activating transcription factor 6 (ATF6), and inositol-requiring enzyme-1 (IRE1), are responsible for initiating UPR. The UPR involves a variety of signal transduction pathways that reduce unfolded protein accumulation by boosting ER-resident chaperones, limiting protein translation, and accelerating unfolded protein degradation. ER is now acknowledged as a critical organelle in sensing dangers and determining cell life and death. On the other hand, UPR plays a critical role in the development and progression of several diseases such as cardiovascular diseases (CVD), metabolic disorders, chronic kidney diseases, neurological disorders, and cancer. Here, we critically analyze the most current knowledge of the master regulatory roles of ER stress particularly the PERK pathway as a conditional danger receptor, an organelle crosstalk regulator, and a regulator of protein translation. We highlighted that PERK is not only ER stress regulator by sensing UPR and ER stress but also a frontier sensor and direct senses for gut microbiota-generated metabolites. Our work also further highlighted the function of PERK as a central hub that leads to metabolic reprogramming and epigenetic modification which further enhanced inflammatory response and promoted trained immunity. Moreover, we highlighted the contribution of ER stress and PERK in the pathogenesis of several diseases such as cancer, CVD, kidney diseases, and neurodegenerative disorders. Finally, we discuss the therapeutic target of ER stress and PERK for cancer treatment and the potential novel therapeutic targets for CVD, metabolic disorders, and neurodegenerative disorders. Inhibition of ER stress, by the development of small molecules that target the PERK and UPR, represents a promising therapeutic strategy.
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Affiliation(s)
- Fatma Saaoud
- Lemole Center for Integrated Lymphatics and Vascular Research, Department of Cardiovascular Sciences, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Yifan Lu
- Lemole Center for Integrated Lymphatics and Vascular Research, Department of Cardiovascular Sciences, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Keman Xu
- Lemole Center for Integrated Lymphatics and Vascular Research, Department of Cardiovascular Sciences, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Ying Shao
- Lemole Center for Integrated Lymphatics and Vascular Research, Department of Cardiovascular Sciences, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Domenico Praticò
- Alzheimer's Center, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | | | - Hong Wang
- Metabolic Disease Research, Department of Cardiovascular Sciences, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Xiaofeng Yang
- Lemole Center for Integrated Lymphatics and Vascular Research, Department of Cardiovascular Sciences, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA; Metabolic Disease Research, Department of Cardiovascular Sciences, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA.
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5
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De Silva M, Tse BCY, Diakos CI, Clarke S, Molloy MP. Immunogenic cell death in colorectal cancer: a review of mechanisms and clinical utility. Cancer Immunol Immunother 2024; 73:53. [PMID: 38353760 PMCID: PMC10866783 DOI: 10.1007/s00262-024-03641-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 01/23/2024] [Indexed: 02/16/2024]
Abstract
Colorectal cancer (CRC) is a major cause of cancer-related morbidity and mortality worldwide. Despite several clinical advances the survival of patients with advanced colorectal cancer remains limited, demanding newer approaches. The immune system plays a central role in cancer development, propagation, and treatment response. Within the bowel, the colorectal mucosa is a key barrier and site of immune regulation that is generally immunosuppressive. Nonetheless, within this tumour microenvironment, it is evident that anti-neoplastic treatments which cause direct cytotoxic and cytostatic effects may also induce immunogenic cell death (ICD), a form of regulated cell death that leads to an anti-tumour immune response. Therefore, novel ICD inducers and molecular biomarkers of ICD action are urgently needed to advance treatment options for advanced CRC. This article reviews our knowledge of ICD in CRC.
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Affiliation(s)
- M De Silva
- Bowel Cancer and Biomarker Research Laboratory, Kolling Institute, Royal North Shore Hospital, St Leonards, NSW, Australia
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - B C Y Tse
- Bowel Cancer and Biomarker Research Laboratory, Kolling Institute, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - C I Diakos
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, NSW, Australia
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - S Clarke
- Department of Medical Oncology, Royal North Shore Hospital, St. Leonards, NSW, Australia
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - M P Molloy
- Bowel Cancer and Biomarker Research Laboratory, Kolling Institute, Royal North Shore Hospital, St Leonards, NSW, Australia.
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.
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6
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Lu HJ, Koju N, Sheng R. Mammalian integrated stress responses in stressed organelles and their functions. Acta Pharmacol Sin 2024:10.1038/s41401-023-01225-0. [PMID: 38267546 DOI: 10.1038/s41401-023-01225-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 12/30/2023] [Indexed: 01/26/2024] Open
Abstract
The integrated stress response (ISR) triggered in response to various cellular stress enables mammalian cells to effectively cope with diverse stressful conditions while maintaining their normal functions. Four kinases (PERK, PKR, GCN2, and HRI) of ISR regulate ISR signaling and intracellular protein translation via mediating the phosphorylation of eukaryotic translation initiation factor 2 α (eIF2α) at Ser51. Early ISR creates an opportunity for cells to repair themselves and restore homeostasis. This effect, however, is reversed in the late stages of ISR. Currently, some studies have shown the non-negligible impact of ISR on diseases such as ischemic diseases, cognitive impairment, metabolic syndrome, cancer, vanishing white matter, etc. Hence, artificial regulation of ISR and its signaling with ISR modulators becomes a promising therapeutic strategy for relieving disease symptoms and improving clinical outcomes. Here, we provide an overview of the essential mechanisms of ISR and describe the ISR-related pathways in organelles including mitochondria, endoplasmic reticulum, Golgi apparatus, and lysosomes. Meanwhile, the regulatory effects of ISR modulators and their potential application in various diseases are also enumerated.
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Affiliation(s)
- Hao-Jun Lu
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Nirmala Koju
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China.
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7
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Davies JP, Sivadas A, Keller KR, Roman BK, Wojcikiewicz RJH, Plate L. Expression of SARS-CoV-2 Nonstructural Proteins 3 and 4 Can Tune the Unfolded Protein Response in Cell Culture. J Proteome Res 2024; 23:356-367. [PMID: 38038604 PMCID: PMC11063930 DOI: 10.1021/acs.jproteome.3c00600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Coronaviruses (CoV), including SARS-CoV-2, modulate host proteostasis through the activation of stress-responsive signaling pathways such as the Unfolded Protein Response (UPR), which remedies misfolded protein accumulation by attenuating translation and increasing protein folding capacity. While CoV nonstructural proteins (nsps) are essential for infection, little is known about the role of nsps in modulating the UPR. We characterized the impact of overexpression of SARS-CoV-2 nsp4, a key driver of replication, on the UPR in cell culture using quantitative proteomics to sensitively detect pathway-wide upregulation of effector proteins. We find that nsp4 preferentially activates the ATF6 and PERK branches of the UPR. Previously, we found that an N-terminal truncation of nsp3 (nsp3.1) can suppress pharmacological ATF6 activation. To determine how nsp3.1 and nsp4 tune the UPR, their coexpression demonstrated that nsp3.1 suppresses nsp4-mediated PERK, but not ATF6 activation. Reanalysis of SARS-CoV-2 infection proteomics data revealed time-dependent activation of PERK targets early in infection, which subsequently fades. This temporal regulation suggests a role for nsp3 and nsp4 in tuning the PERK pathway to attenuate host translation beneficial for viral replication while avoiding later apoptotic signaling caused by chronic activation. This work furthers our understanding of CoV-host proteostasis interactions and highlights the power of proteomic methods for systems-level analysis of the UPR.
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Affiliation(s)
- Jonathan P Davies
- Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee 37240, United States
| | - Athira Sivadas
- Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee 37240, United States
| | - Katherine R Keller
- Department of Pharmacology, SUNY Upstate Medical University, Syracuse, New York 12310, United States
| | - Brynn K Roman
- Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee 37240, United States
| | - Richard J H Wojcikiewicz
- Department of Pharmacology, SUNY Upstate Medical University, Syracuse, New York 12310, United States
| | - Lars Plate
- Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee 37240, United States
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37240, United States
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37240, United States
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8
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Zhang SX, Wang JJ, Starr CR, Lee EJ, Park KS, Zhylkibayev A, Medina A, Lin JH, Gorbatyuk M. The endoplasmic reticulum: Homeostasis and crosstalk in retinal health and disease. Prog Retin Eye Res 2024; 98:101231. [PMID: 38092262 PMCID: PMC11056313 DOI: 10.1016/j.preteyeres.2023.101231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
The endoplasmic reticulum (ER) is the largest intracellular organelle carrying out a broad range of important cellular functions including protein biosynthesis, folding, and trafficking, lipid and sterol biosynthesis, carbohydrate metabolism, and calcium storage and gated release. In addition, the ER makes close contact with multiple intracellular organelles such as mitochondria and the plasma membrane to actively regulate the biogenesis, remodeling, and function of these organelles. Therefore, maintaining a homeostatic and functional ER is critical for the survival and function of cells. This vital process is implemented through well-orchestrated signaling pathways of the unfolded protein response (UPR). The UPR is activated when misfolded or unfolded proteins accumulate in the ER, a condition known as ER stress, and functions to restore ER homeostasis thus promoting cell survival. However, prolonged activation or dysregulation of the UPR can lead to cell death and other detrimental events such as inflammation and oxidative stress; these processes are implicated in the pathogenesis of many human diseases including retinal disorders. In this review manuscript, we discuss the unique features of the ER and ER stress signaling in the retina and retinal neurons and describe recent advances in the research to uncover the role of ER stress signaling in neurodegenerative retinal diseases including age-related macular degeneration, inherited retinal degeneration, achromatopsia and cone diseases, and diabetic retinopathy. In some chapters, we highlight the complex interactions between the ER and other intracellular organelles focusing on mitochondria and illustrate how ER stress signaling regulates common cellular stress pathways such as autophagy. We also touch upon the integrated stress response in retinal degeneration and diabetic retinopathy. Finally, we provide an update on the current development of pharmacological agents targeting the UPR response and discuss some unresolved questions and knowledge gaps to be addressed by future research.
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Affiliation(s)
- Sarah X Zhang
- Department of Ophthalmology and Ross Eye Institute, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, United States; Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, United States.
| | - Josh J Wang
- Department of Ophthalmology and Ross Eye Institute, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Christopher R Starr
- Department of Optometry and Vision Science, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Eun-Jin Lee
- Department of Ophthalmology and Byers Eye Institute, Stanford University, Stanford, CA, United States; VA Palo Alto Healthcare System, Palo Alto, CA, United States; Department of Pathology, Stanford University, Stanford, CA, United States
| | - Karen Sophia Park
- Department of Ophthalmology and Ross Eye Institute, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Assylbek Zhylkibayev
- Department of Optometry and Vision Science, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Andy Medina
- Department of Ophthalmology and Ross Eye Institute, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, United States
| | - Jonathan H Lin
- Department of Ophthalmology and Byers Eye Institute, Stanford University, Stanford, CA, United States; VA Palo Alto Healthcare System, Palo Alto, CA, United States; Department of Pathology, Stanford University, Stanford, CA, United States
| | - Marina Gorbatyuk
- Department of Optometry and Vision Science, University of Alabama at Birmingham, Birmingham, AL, United States
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Ricciardi-Jorge T, da Rocha EL, Gonzalez-Kozlova E, Rodrigues-Luiz GF, Ferguson BJ, Sweeney T, Irigoyen N, Mansur DS. PKR-mediated stress response enhances dengue and Zika virus replication. mBio 2023; 14:e0093423. [PMID: 37732809 PMCID: PMC10653888 DOI: 10.1128/mbio.00934-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 08/01/2023] [Indexed: 09/22/2023] Open
Abstract
IMPORTANCE One of the fundamental features that make viruses intracellular parasites is the necessity to use cellular translational machinery. Hence, this is a crucial checkpoint for controlling infections. Here, we show that dengue and Zika viruses, responsible for nearly 400 million infections every year worldwide, explore such control for optimal replication. Using immunocompetent cells, we demonstrate that arrest of protein translations happens after sensing of dsRNA and that the information required to avoid this blocking is contained in viral 5'-UTR. Our work, therefore, suggests that the non-canonical translation described for these viruses is engaged when the intracellular stress response is activated.
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Affiliation(s)
- Taissa Ricciardi-Jorge
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
- The Pirbright Institute, Woking, United Kingdom
| | - Edroaldo Lummertz da Rocha
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
| | - Edgar Gonzalez-Kozlova
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
- Icahn School of Medicine, New York, USA
| | - Gabriela Flavia Rodrigues-Luiz
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
| | - Brian J. Ferguson
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | | | - Nerea Irigoyen
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - Daniel Santos Mansur
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, Brazil
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10
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Zhou Y, Liu J, Xue P, Zhang J. Collagenase-Responsive Hydrogel Loaded with GSK2606414 Nanoparticles for Periodontitis Treatment through Inhibiting Inflammation-Induced Expression of PERK of Periodontal Ligament Stem Cells. Pharmaceutics 2023; 15:2503. [PMID: 37896262 PMCID: PMC10609791 DOI: 10.3390/pharmaceutics15102503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/14/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023] Open
Abstract
GSK2606414 is a new, effective, highly selective PERK inhibitor with adenosine-triphosphate-competitive characteristics. It can inhibit endoplasmic reticulum stress and has the possibility of treating periodontitis. However, owing to its strong hydrophobicity and side effects, highly efficient pharmaceutical formulations are urgently needed to improve the bioavailability and therapeutic efficacy of GSK2606414 in the treatment of periodontitis. Herein, a novel local GSK2606414 delivery system was developed by synthesizing GSK2606414 nanoparticles (NanoGSK) and further loading NanoGSK into a collagenase-responsive hydrogel. The drug release results showed that the drug-loaded hydrogels had outstanding enzymatic responsive drug release profiles under the local microenvironment of periodontitis. Furthermore, in vitro studies showed that the drug-loaded hydrogel exhibited good cellular uptake and did not affect the growth and proliferation of normal cells, while the drug-loaded hydrogel significantly improved the osteogenic differentiation of inflammatory cells. In the evaluations of periodontal tissue repair, the drug-loaded hydrogels showed a great effect on inflammation inhibition, as well as alveolar bone regeneration. Therefore, this work introduces a promising strategy for the clinical treatment of periodontitis.
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Affiliation(s)
- Yuchen Zhou
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jie Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Peng Xue
- Institute of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Jianjun Zhang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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11
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Szaruga M, Janssen DA, de Miguel C, Hodgson G, Fatalska A, Pitera AP, Andreeva A, Bertolotti A. Activation of the integrated stress response by inhibitors of its kinases. Nat Commun 2023; 14:5535. [PMID: 37684277 PMCID: PMC10491595 DOI: 10.1038/s41467-023-40823-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 08/10/2023] [Indexed: 09/10/2023] Open
Abstract
Phosphorylation of the translation initiation factor eIF2α to initiate the integrated stress response (ISR) is a vital signalling event. Protein kinases activating the ISR, including PERK and GCN2, have attracted considerable attention for drug development. Here we find that the widely used ATP-competitive inhibitors of PERK, GSK2656157, GSK2606414 and AMG44, inhibit PERK in the nanomolar range, but surprisingly activate the ISR via GCN2 at micromolar concentrations. Similarly, a PKR inhibitor, C16, also activates GCN2. Conversely, GCN2 inhibitor A92 silences its target but induces the ISR via PERK. These findings are pivotal for understanding ISR biology and its therapeutic manipulations because most preclinical studies used these inhibitors at micromolar concentrations. Reconstitution of ISR activation with recombinant proteins demonstrates that PERK and PKR inhibitors directly activate dimeric GCN2, following a Gaussian activation-inhibition curve, with activation driven by allosterically increasing GCN2 affinity for ATP. The tyrosine kinase inhibitors Neratinib and Dovitinib also activate GCN2 by increasing affinity of GCN2 for ATP. Thus, the mechanism uncovered here might be broadly relevant to ATP-competitive inhibitors and perhaps to other kinases.
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Affiliation(s)
- Maria Szaruga
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Dino A Janssen
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Claudia de Miguel
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - George Hodgson
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Agnieszka Fatalska
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Aleksandra P Pitera
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Antonina Andreeva
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - Anne Bertolotti
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK.
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12
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Mukherjee D, Chakraborty S, Bercz L, D’Alesio L, Wedig J, Torok MA, Pfau T, Lathrop H, Jasani S, Guenther A, McGue J, Adu-Ampratwum D, Fuchs JR, Frankel TL, Pietrzak M, Culp S, Strohecker AM, Skardal A, Mace TA. Tomatidine targets ATF4-dependent signaling and induces ferroptosis to limit pancreatic cancer progression. iScience 2023; 26:107408. [PMID: 37554459 PMCID: PMC10405072 DOI: 10.1016/j.isci.2023.107408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/19/2023] [Accepted: 07/13/2023] [Indexed: 08/10/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with high metastasis and therapeutic resistance. Activating transcription factor 4 (ATF4), a master regulator of cellular stress, is exploited by cancer cells to survive. Prior research and data reported provide evidence that high ATF4 expression correlates with worse overall survival in PDAC. Tomatidine, a natural steroidal alkaloid, is associated with inhibition of ATF4 signaling in multiple diseases. Here, we discovered that in vitro and in vivo tomatidine treatment of PDAC cells inhibits tumor growth. Tomatidine inhibited nuclear translocation of ATF4 and reduced the transcriptional binding of ATF4 with downstream promoters. Tomatidine enhanced gemcitabine chemosensitivity in 3D ECM-hydrogels and in vivo. Tomatidine treatment was associated with induction of ferroptosis signaling validated by increased lipid peroxidation, mitochondrial biogenesis, and decreased GPX4 expression in PDAC cells. This study highlights a possible therapeutic approach utilizing a plant-derived metabolite, tomatidine, to target ATF4 activity in PDAC.
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Affiliation(s)
- Debasmita Mukherjee
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Molecular, Cellular and Developmental Biology Program, The Ohio State University, Columbus, OH 43210, USA
| | - Srija Chakraborty
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Lena Bercz
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Liliana D’Alesio
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Jessica Wedig
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Molecular, Cellular and Developmental Biology Program, The Ohio State University, Columbus, OH 43210, USA
| | - Molly A. Torok
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Timothy Pfau
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Hannah Lathrop
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Shrina Jasani
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Abigail Guenther
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Jake McGue
- Department of Surgery, University of Michigan, Ann Arbor, MI 48109, USA
| | - Daniel Adu-Ampratwum
- Division of Medicinal Chemistry & Pharmacognosy, The Ohio State University, Columbus, OH 43210, USA
| | - James R. Fuchs
- Division of Medicinal Chemistry & Pharmacognosy, The Ohio State University, Columbus, OH 43210, USA
| | | | - Maciej Pietrzak
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Stacey Culp
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210, USA
| | - Anne M. Strohecker
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Department of Cancer Biology & Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - Aleksander Skardal
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Thomas A. Mace
- The James Comprehensive Cancer Center, Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Department of Internal Medicine, Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University, Columbus, OH 43210, USA
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13
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Perea V, Cole C, Lebeau J, Dolina V, Baron KR, Madhavan A, Kelly JW, Grotjahn DA, Wiseman RL. PERK signaling promotes mitochondrial elongation by remodeling membrane phosphatidic acid. EMBO J 2023; 42:e113908. [PMID: 37306086 PMCID: PMC10390871 DOI: 10.15252/embj.2023113908] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 06/13/2023] Open
Abstract
Endoplasmic reticulum (ER) stress and mitochondrial dysfunction are linked in the onset and pathogenesis of numerous diseases. This has led to considerable interest in defining the mechanisms responsible for regulating mitochondria during ER stress. The PERK signaling arm of the unfolded protein response (UPR) has emerged as a prominent ER stress-responsive signaling pathway that regulates diverse aspects of mitochondrial biology. Here, we show that PERK activity promotes adaptive remodeling of mitochondrial membrane phosphatidic acid (PA) to induce protective mitochondrial elongation during acute ER stress. We find that PERK activity is required for ER stress-dependent increases in both cellular PA and YME1L-dependent degradation of the intramitochondrial PA transporter PRELID1. These two processes lead to the accumulation of PA on the outer mitochondrial membrane where it can induce mitochondrial elongation by inhibiting mitochondrial fission. Our results establish a new role for PERK in the adaptive remodeling of mitochondrial phospholipids and demonstrate that PERK-dependent PA regulation adapts organellar shape in response to ER stress.
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Affiliation(s)
- Valerie Perea
- Department of Molecular MedicineScripps ResearchLa JollaCAUSA
| | | | - Justine Lebeau
- Department of Molecular MedicineScripps ResearchLa JollaCAUSA
| | - Vivian Dolina
- Department of Molecular MedicineScripps ResearchLa JollaCAUSA
| | - Kelsey R Baron
- Department of Molecular MedicineScripps ResearchLa JollaCAUSA
| | | | - Jeffery W Kelly
- Department of ChemistryScripps ResearchLa JollaCAUSA
- Skaggs Institute for Chemical BiologyScripps ResearchLa JollaCAUSA
| | - Danielle A Grotjahn
- Department of Integrative, Structural, and Computational BiologyScripps ResearchLa JollaCAUSA
| | - R Luke Wiseman
- Department of Molecular MedicineScripps ResearchLa JollaCAUSA
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14
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Yodsanit N, Shirasu T, Huang Y, Yin L, Islam ZH, Gregg AC, Riccio AM, Tang R, Kent EW, Wang Y, Xie R, Zhao Y, Ye M, Zhu J, Huang Y, Hoyt N, Zhang M, Hossack JA, Salmon M, Kent KC, Guo LW, Gong S, Wang B. Targeted PERK inhibition with biomimetic nanoclusters confers preventative and interventional benefits to elastase-induced abdominal aortic aneurysms. Bioact Mater 2023; 26:52-63. [PMID: 36875050 PMCID: PMC9975632 DOI: 10.1016/j.bioactmat.2023.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 02/25/2023] Open
Abstract
Abdominal aortic aneurysm (AAA) is a progressive aortic dilatation, causing ∼80% mortality upon rupture. Currently, there is no approved drug therapy for AAA. Surgical repairs are invasive and risky and thus not recommended to patients with small AAAs which, however, account for ∼90% of the newly diagnosed cases. It is therefore a compelling unmet clinical need to discover effective non-invasive strategies to prevent or slow down AAA progression. We contend that the first AAA drug therapy will only arise through discoveries of both effective drug targets and innovative delivery methods. There is substantial evidence that degenerative smooth muscle cells (SMCs) orchestrate AAA pathogenesis and progression. In this study, we made an exciting finding that PERK, the endoplasmic reticulum (ER) stress Protein Kinase R-like ER Kinase, is a potent driver of SMC degeneration and hence a potential therapeutic target. Indeed, local knockdown of PERK in elastase-challenged aorta significantly attenuated AAA lesions in vivo. In parallel, we also conceived a biomimetic nanocluster (NC) design uniquely tailored to AAA-targeting drug delivery. This NC demonstrated excellent AAA homing via a platelet-derived biomembrane coating; and when loaded with a selective PERK inhibitor (PERKi, GSK2656157), the NC therapy conferred remarkable benefits in both preventing aneurysm development and halting the progression of pre-existing aneurysmal lesions in two distinct rodent models of AAA. In summary, our current study not only establishes a new intervention target for mitigating SMC degeneration and aneurysmal pathogenesis, but also provides a powerful tool to facilitate the development of effective drug therapy of AAA.
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Affiliation(s)
- Nisakorn Yodsanit
- Department of Biomedical Engineering, Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA.,Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Takuro Shirasu
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Yitao Huang
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA.,The Biomedical Sciences Graduate Program (BIMS), School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Li Yin
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Zain Husain Islam
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | | | - Alessandra Marie Riccio
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Runze Tang
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Eric William Kent
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Yuyuan Wang
- Department of Biomedical Engineering, Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA.,Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Ruosen Xie
- Department of Biomedical Engineering, Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA.,Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Yi Zhao
- Department of Biomedical Engineering, Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA.,Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Mingzhou Ye
- Department of Biomedical Engineering, Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA.,Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Jingcheng Zhu
- Department of Biomedical Engineering, Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA.,Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Yi Huang
- Department of Biomedical Engineering, School of Engineering, University of Virginia, Charlottesville, VA, 22908, USA
| | - Nicholas Hoyt
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA.,School of Medicine and Health Sciences, George Washington University, Washington, DC, 20052, USA
| | - Mengxue Zhang
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - John A Hossack
- Department of Biomedical Engineering, School of Engineering, University of Virginia, Charlottesville, VA, 22908, USA
| | - Morgan Salmon
- Department of Cardiac Surgery, Michigan Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - K Craig Kent
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Lian-Wang Guo
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
| | - Shaoqin Gong
- Department of Biomedical Engineering, Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, 53715, USA.,Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI, 53715, USA
| | - Bowen Wang
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, 22908, USA
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15
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Ye ZW, Zhang J, Aslam M, Blumental-Perry A, Tew KD, Townsend DM. Protein disulfide isomerase family mediated redox regulation in cancer. Adv Cancer Res 2023; 160:83-106. [PMID: 37704292 PMCID: PMC10586477 DOI: 10.1016/bs.acr.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Protein disulfide isomerase (PDI) and its superfamilies are mainly endoplasmic reticulum (ER) resident proteins with essential roles in maintaining cellular homeostasis, via thiol oxidation/reduction cycles, chaperoning, and isomerization of client proteins. Since PDIs play an important role in ER homeostasis, their upregulation supports cell survival and they are found in a variety of cancer types. Despite the fact that the importance of PDI to tumorigenesis remains to be understood, it is emerging as a new therapeutic target in cancer. During the past decade, several PDI inhibitors has been developed and commercialized, but none has been approved for clinical use. In this review, we discuss the properties and redox regulation of PDIs within the ER and provide an overview of the last 5 years of advances regarding PDI inhibitors.
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Affiliation(s)
- Zhi-Wei Ye
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States.
| | - Jie Zhang
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States
| | - Muhammad Aslam
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States
| | - Anna Blumental-Perry
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, NY, United States
| | - Kenneth D Tew
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, United States
| | - Danyelle M Townsend
- Department of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, United States
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16
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Rosarda JD, Giles S, Harkins-Perry S, Mills EA, Friedlander M, Wiseman RL, Eade KT. Imbalanced unfolded protein response signaling contributes to 1-deoxysphingolipid retinal toxicity. Nat Commun 2023; 14:4119. [PMID: 37433773 DOI: 10.1038/s41467-023-39775-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 06/23/2023] [Indexed: 07/13/2023] Open
Abstract
The accumulation of atypical, cytotoxic 1-deoxysphingolipids (1-dSLs) has been linked to retinal diseases such as diabetic retinopathy and Macular Telangiectasia Type 2. However, the molecular mechanisms by which 1-dSLs induce toxicity in retinal cells remain poorly understood. Here, we integrate bulk and single-nucleus RNA-sequencing to define biological pathways that modulate 1-dSL toxicity in human retinal organoids. Our results demonstrate that 1-dSLs differentially activate signaling arms of the unfolded protein response (UPR) in photoreceptor cells and Müller glia. Using a combination of pharmacologic activators and inhibitors, we show that sustained PERK signaling through the integrated stress response (ISR) and deficiencies in signaling through the protective ATF6 arm of the UPR are implicated in 1-dSL-induced photoreceptor toxicity. Further, we demonstrate that pharmacologic activation of ATF6 mitigates 1-dSL toxicity without impacting PERK/ISR signaling. Collectively, our results identify new opportunities to intervene in 1-dSL linked diseases through targeting different arms of the UPR.
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Affiliation(s)
- Jessica D Rosarda
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Sarah Giles
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
- Lowy Medical Research Institute, La Jolla, CA, 92037, USA
| | - Sarah Harkins-Perry
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
- Lowy Medical Research Institute, La Jolla, CA, 92037, USA
| | - Elizabeth A Mills
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
- Lowy Medical Research Institute, La Jolla, CA, 92037, USA
| | - Martin Friedlander
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
- Lowy Medical Research Institute, La Jolla, CA, 92037, USA
| | - R Luke Wiseman
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Kevin T Eade
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA.
- Lowy Medical Research Institute, La Jolla, CA, 92037, USA.
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17
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Wang ZS, Bennett SH, Kicin B, Jing C, Pradeilles JA, Thai K, Smith JR, Bacoş PD, Fasano V, Saunders CM, Aggarwal VK. De Novo Synthesis of Dihydrobenzofurans and Indolines and Its Application to a Modular, Asymmetric Synthesis of Beraprost. J Am Chem Soc 2023. [PMID: 37326516 DOI: 10.1021/jacs.3c04582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Dihydrobenzofurans and indolines are important constituents of pharmaceuticals. Herein, we describe a novel strategy for their construction in which the aromatic ring is created de novo through an inverse-electron demand Diels-Alder reaction and cheletropic extrusion sequence of a 2-halothiophene-1,1-dioxide with an enol ether/enamide, followed by aromatization. Unusually, the aromatization process proved to be highly challenging, but it was discovered that treatment of the halocyclohexadienes with a base effected an α-elimination-aromatization reaction. Mechanistic investigation of this step using deuterium-labeling studies indicated the intermediacy of a carbene which undergoes a 1,2-hydrogen shift and subsequent aromatization. The methodology was applied to a modular and stereoselective total synthesis of the antiplatelet drug beraprost in only 8 steps from a key enal-lactone. This lactone provided the core of beraprost to which both its sidechains could be appended through a 1,4-conjugate addition process (lower ω-sidechain), followed by de novo construction of beraprost's dihydrobenzofuran (upper α-sidechain) using our newly developed methodology. Additionally, we have demonstrated the breadth of our newly established protocol in the synthesis of functionalized indolines, which occurred with high levels of regiocontrol. According to density-functional theory (DFT) calculations, the high selectivity originates from attractive London dispersion interactions in the TS of the Diels-Alder reaction.
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Affiliation(s)
- Ze-Shu Wang
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Steven H Bennett
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Bilal Kicin
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Changcheng Jing
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Johan A Pradeilles
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Karen Thai
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - James R Smith
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - P David Bacoş
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Valerio Fasano
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Carla M Saunders
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
| | - Varinder K Aggarwal
- School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, U.K
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18
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Wang W, Hawkridge AM, Ma Y, Zhang B, Mangrum JB, Hassan ZH, He T, Blat S, Guo C, Zhou H, Liu J, Wang XY, Fang X. Ubiquitin-like protein 5 is a novel player in the UPR-PERK arm and ER stress-induced cell death. J Biol Chem 2023:104915. [PMID: 37315790 PMCID: PMC10339194 DOI: 10.1016/j.jbc.2023.104915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/16/2023] Open
Abstract
Biological functions of the highly conserved ubiquitin-like protein 5 (UBL5) are not well understood. In C. elegans, UBL5 is induced under mitochondrial stress to mount the mitochondrial unfolded protein response (UPRmt). However, the role of UBL5 in the more prevalent endoplasmic reticulum (ER) stress-unfolded protein response (UPR) in the mammalian system is unknown. In the present work, we demonstrated that UBL5 was an ER stress-responsive protein, undergoing rapid depletion in mammalian cells and livers of mice. The ER stress-induced UBL5 depletion was mediated by proteasome-dependent yet ubiquitin-independent proteolysis. Activation of the protein kinase R-like endoplasmic reticulum kinase (PERK) arm of the UPR was essential and sufficient for inducing UBL5 degradation. RNA-Seq analysis of UBL5-regulated transcriptome revealed that multiple death pathways were activated in UBL5-silenced cells. In agreement with this, UBL5 knockdown induced severe apoptosis in culture and suppressed tumorigenicity of cancer cells in vivo. Furthermore, overexpression of UBL5 protected specifically against ER stress-induced apoptosis. These results identify UBL5 as a physiologically relevant survival regulator that is proteolytically depleted by the UPR-PERK pathway, linking ER stress to cell death.
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Affiliation(s)
- Wei Wang
- Departments of Biochemistry & Molecular Biology, Richmond, VA, 23298
| | - Adam M Hawkridge
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23298
| | - Yibao Ma
- Departments of Biochemistry & Molecular Biology, Richmond, VA, 23298; Alliance Pharma Inc, 17 Lee Blvd, Malvern, PA 19355
| | - Bei Zhang
- Departments of Biochemistry & Molecular Biology, Biostatistics, Richmond, VA, 23298
| | - John B Mangrum
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23298; Center for Food Safety and Applied Nutrition, United States Food and Drug Administration, 5001 Campus Dr., College Park, MD 20740
| | - Zaneera H Hassan
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, 23298
| | - Tianhai He
- Departments of Biochemistry & Molecular Biology, Richmond, VA, 23298
| | - Sofiya Blat
- Departments of Biochemistry & Molecular Biology, Richmond, VA, 23298
| | - Chunqing Guo
- Departments of Biochemistry & Molecular Biology, Human & Molecular Genetics, Richmond, VA, 23298
| | - Huiping Zhou
- Departments of Biochemistry & Molecular BiologyMicrobiology & Immunology, School of Medicine, Richmond, VA, 23298; Hunter Holmes McGuire VA Medical Center, Richmond, VA 23249
| | - Jinze Liu
- Departments of Biochemistry & Molecular Biology, Biostatistics, Richmond, VA, 23298
| | - Xiang-Yang Wang
- Departments of Biochemistry & Molecular Biology, Human & Molecular Genetics, Richmond, VA, 23298; Hunter Holmes McGuire VA Medical Center, Richmond, VA 23249
| | - Xianjun Fang
- Departments of Biochemistry & Molecular Biology, Richmond, VA, 23298.
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19
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Barer L, Schröder SK, Weiskirchen R, Bacharach E, Ehrlich M. Lipocalin-2 regulates the expression of interferon-stimulated genes and the susceptibility of prostate cancer cells to oncolytic virus infection. Eur J Cell Biol 2023; 102:151328. [PMID: 37321037 DOI: 10.1016/j.ejcb.2023.151328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 06/17/2023] Open
Abstract
Lipocalin-2 (LCN2) performs pleiotropic and tumor context-dependent functions in cancers of diverse etiologies. In prostate cancer (PCa) cells, LCN2 regulates distinct phenotypic features, including cytoskeleton organization and expression of inflammation mediators. Oncolytic virotherapy uses oncolytic viruses (OVs) to kill cancer cells and induce anti-tumor immunity. A main source of specificity of OVs towards tumor cells stems from cancer-induced defects in interferon (IFN)-based cell autonomous immune responses. However, the molecular underpinnings of such defects in PCa cells are only partially understood. Moreover, LCN2 effects on IFN responses of PCa cells and their susceptibility to OVs are unknown. To examine these issues, we queried gene expression databases for genes coexpressed with LCN2, revealing co-expression of IFN-stimulated genes (ISGs) and LCN2. Analysis of human PCa cells revealed correlated expression of LCN2 and subsets of IFNs and ISGs. CRISPR/Cas9-mediated stable knockout of LCN2 in PC3 cells or transient overexpression of LCN2 in LNCaP cells revealed LCN2-mediated regulation of IFNE (and IFNL1) expression, activation of JAK/STAT pathway, and expression of selected ISGs. Accordingly, and dependent on a functional JAK/STAT pathway, LCN2 reduced the susceptibility of PCa cells to infection with the IFN-sensitive OV, EHDV-TAU. In PC3 cells, LCN2 knockout increased phosphorylation of eukaryotic initiation factor 2α (p-eIF2α). Inhibition of PKR-like ER kinase (PERK) in PC3-LCN2-KO cells reduced p-eIF2α while increasing constitutive IFNE expression, phosphorylation of STAT1, and ISG expression; and decreasing EHDV-TAU infection. Together, these data propose that LCN2 regulates PCa susceptibility to OVs through attenuation of PERK activity and increased IFN and ISG expression.
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Affiliation(s)
- Lilach Barer
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Sarah K Schröder
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074 Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074 Aachen, Germany.
| | - Eran Bacharach
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv-Yafo, Israel.
| | - Marcelo Ehrlich
- The Shmunis School of Biomedicine and Cancer Research, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv-Yafo, Israel.
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20
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Saraswat Ohri S, Andres KR, Howard RM, Brown BL, Forston MD, Hetman M, Whittemore SR. Acute Pharmacological Inhibition of Protein Kinase R-Like Endoplasmic Reticulum Kinase Signaling After Spinal Cord Injury Spares Oligodendrocytes and Improves Locomotor Recovery. J Neurotrauma 2023; 40:1007-1019. [PMID: 36503284 PMCID: PMC10162120 DOI: 10.1089/neu.2022.0177] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) is a major signal transducer of the endoplasmic reticulum stress response (ERSR) pathway. Outcomes of PERK activation range from abrogating ER stress to induction of cell death, dependent on its level, duration, and cellular context. Current data demonstrate that after mouse spinal cord injury (SCI), acute inhibition of PERK (0-72 h) with the small molecule inhibitor GSK2656157 reduced ERSR while improving white matter sparing and hindlimb locomotion recovery. GSK2656157-treated mice showed increased numbers of oligodendrocytes at the injury epicenter. Moreover, GSK2656157 protected cultured primary mouse oligodendrocyte precursor cells from ER stress-induced cytotoxicity. These findings suggest that in the context of SCI, excessive acute activation of PERK contributes to functionally relevant white matter damage. Pharmacological inhibition of PERK is a potential strategy to protect central nervous system (CNS) white matter following acute injuries, including SCI.
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Affiliation(s)
- Sujata Saraswat Ohri
- Kentucky Spinal Cord Injury Research Center, University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Interdisciplinary Program in Translational Neuroscience, and Department of University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Neurological Surgery, University of Louisville, School of Medicine, Louisville, Kentucky, USA
| | - Kariena R. Andres
- Kentucky Spinal Cord Injury Research Center, University of Louisville, School of Medicine, Louisville, Kentucky, USA
| | - Russell M. Howard
- Kentucky Spinal Cord Injury Research Center, University of Louisville, School of Medicine, Louisville, Kentucky, USA
| | - Brandon L. Brown
- Kentucky Spinal Cord Injury Research Center, University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Interdisciplinary Program in Translational Neuroscience, and Department of University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Anatomical Sciences and Neurobiology, and University of Louisville, School of Medicine, Louisville, Kentucky, USA
| | - Michael D. Forston
- Kentucky Spinal Cord Injury Research Center, University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Anatomical Sciences and Neurobiology, and University of Louisville, School of Medicine, Louisville, Kentucky, USA
| | - Michal Hetman
- Kentucky Spinal Cord Injury Research Center, University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Interdisciplinary Program in Translational Neuroscience, and Department of University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Neurological Surgery, University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Anatomical Sciences and Neurobiology, and University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Pharmacology and Toxicology, University of Louisville, School of Medicine, Louisville, Kentucky, USA
| | - Scott R. Whittemore
- Kentucky Spinal Cord Injury Research Center, University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Interdisciplinary Program in Translational Neuroscience, and Department of University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Neurological Surgery, University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Anatomical Sciences and Neurobiology, and University of Louisville, School of Medicine, Louisville, Kentucky, USA
- Pharmacology and Toxicology, University of Louisville, School of Medicine, Louisville, Kentucky, USA
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21
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Jin J, Xie Y, Zhang JS, Wang JQ, Dai SJ, He WF, Li SY, Ashby CR, Chen ZS, He Q. Sunitinib resistance in renal cell carcinoma: From molecular mechanisms to predictive biomarkers. Drug Resist Updat 2023; 67:100929. [PMID: 36739809 DOI: 10.1016/j.drup.2023.100929] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/19/2023]
Abstract
Currently, renal cell carcinoma (RCC) is the most prevalent type of kidney cancer. Targeted therapy has replaced radiation therapy and chemotherapy as the main treatment option for RCC due to the lack of significant efficacy with these conventional therapeutic regimens. Sunitinib, a drug used to treat gastrointestinal tumors and renal cell carcinoma, inhibits the tyrosine kinase activity of a number of receptor tyrosine kinases, including vascular endothelial growth factor receptor (VEGFR), platelet-derived growth factor receptor (PDGFR), c-Kit, rearranged during transfection (RET) and fms-related receptor tyrosine kinase 3 (Flt3). Although sunitinib has been shown to be efficacious in the treatment of patients with advanced RCC, a significant number of patients have primary resistance to sunitinib or acquired drug resistance within the 6-15 months of therapy. Thus, in order to develop more efficacious and long-lasting treatment strategies for patients with advanced RCC, it will be crucial to ascertain how to overcome sunitinib resistance that is produced by various drug resistance mechanisms. In this review, we discuss: 1) molecular mechanisms of sunitinib resistance; 2) strategies to overcome sunitinib resistance and 3) potential predictive biomarkers of sunitinib resistance.
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Affiliation(s)
- Juan Jin
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, Zhejiang 310003, China
| | - Yuhao Xie
- Institute for Biotechnology, St. John's University, Queens, NY 11439, USA; Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Jin-Shi Zhang
- Urology & Nephrology Center, Department of Nephrology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - Jing-Quan Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Shi-Jie Dai
- Zhejiang Eyoung Pharmaceutical Research and Development Center, Hangzhou, Zhejiang 311258, China
| | - Wen-Fang He
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, Zhejiang 310003, China
| | - Shou-Ye Li
- Zhejiang Eyoung Pharmaceutical Research and Development Center, Hangzhou, Zhejiang 311258, China
| | - Charles R Ashby
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Zhe-Sheng Chen
- Institute for Biotechnology, St. John's University, Queens, NY 11439, USA; Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA.
| | - Qiang He
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, Zhejiang 310003, China.
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22
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Erzurumlu Y, Dogan HK, Catakli D. Progesterone regulates the endoplasmic reticulum-associated degradation and Unfolded Protein Response axis by mimicking the androgenic stimulation in prostate cancer cells. Mol Biol Rep 2023; 50:1253-1265. [PMID: 36445513 DOI: 10.1007/s11033-022-08065-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 10/31/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Today, androgen receptor (AR)-mediated signaling mechanisms in prostate cancer are intensively studied. However, the roles of other steroid hormones in prostate cancer and their effects on androgenic signaling still remain a mystery. Recent studies focused on the androgen-mediated regulation of protein quality control mechanisms such as endoplasmic reticulum-associated degradation (ERAD) and unfolded protein response (UPR) in prostate cancer cells. Present study, we investigated the action of progesterone signaling on ERAD and UPR mechanisms and analyzed the crosstalk of progesterone signaling with androgenic signal in prostate cancer cells. METHODS AND RESULTS The mode of action of progesterone on ERAD, UPR and AR signaling in prostate cancer was investigated by cell culture studies using LNCaP and 22Rv1 cells. To this aim qRT-PCR, western-blotting assay, immunofluorescent microscopy, nuclear fractionation and bioinformatic analysis were used. Our results indicated that progesterone positively regulates mRNA and protein levels of ERAD components in LNCaP cells. Also, it induced the IRE⍺ and PERK branches of UPR signaling. Progesterone receptor antagonist effectively antagonized the progesterone-induced responses. We also had similar results in 22Rv1 cells. Also, we tested the effect of the pharmacologically reducing of IRE⍺ and PERK signaling on progesterone-induced ERAD. Additionally, we determined the presence of putative progesterone response elements (PREs) in the promoter regions of ERAD members by bioinformatic tool. More strikingly, we found progesterone regulates AR signaling by modulating the nuclear transactivation of AR. CONCLUSION Herein, we defined that progesterone hormone positively regulates ERAD and UPR mechanisms in prostate cancer cells and that progesterone contributes to the molecular biology of prostate cancer by regulating androgenic signaling. Mode of Action of Progesteron on Androgen sensitive prostate cancer cells.
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Affiliation(s)
- Yalcin Erzurumlu
- Department of Biochemistry, Faculty of Pharmacy, Suleyman Demirel University, 32260, Isparta, Turkey.
| | - Hatice Kubra Dogan
- Department of Bioengineering, Institute of Science, Suleyman Demirel University, 32260, Isparta, Turkey
| | - Deniz Catakli
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, 32260, Isparta, Turkey
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23
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Scarpellini C, Valembois S, Goossens K, Vadi M, Lanthier C, Klejborowska G, Van Der Veken P, De Winter H, Bertrand MJM, Augustyns K. From PERK to RIPK1: Design, synthesis and evaluation of novel potent and selective necroptosis inhibitors. Front Chem 2023; 11:1160164. [PMID: 37090247 PMCID: PMC10119423 DOI: 10.3389/fchem.2023.1160164] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/28/2023] [Indexed: 04/25/2023] Open
Abstract
Receptor-Interacting serine/threonine-Protein Kinase 1 (RIPK1) emerged as an important driver of inflammation and, consequently, inflammatory pathologies. The enzymatic activity of RIPK1 is known to indirectly promote inflammation by triggering cell death, in the form of apoptosis, necroptosis and pyroptosis. Small molecule Receptor-Interacting serine/threonine-Protein Kinase 1 inhibitors have therefore recently entered clinical trials for the treatment of a subset of inflammatory pathologies. We previously identified GSK2656157 (GSK'157), a supposedly specific inhibitor of protein kinase R (PKR)-like ER kinase (PERK), as a much more potent type II Receptor-Interacting serine/threonine-Protein Kinase 1 inhibitor. We now performed further structural optimisation on the GSK'157 scaffold in order to develop a novel class of more selective Receptor-Interacting serine/threonine-Protein Kinase 1 inhibitors. Based on a structure-activity relationship (SAR) reported in the literature, we anticipated that introducing a substituent on the para-position of the pyridinyl ring would decrease the interaction with PERK. Herein, we report a series of novel GSK'157 analogues with different para-substituents with increased selectivity for Receptor-Interacting serine/threonine-Protein Kinase 1. The optimisation led to UAMC-3861 as the best compound of this series in terms of activity and selectivity for Receptor-Interacting serine/threonine-Protein Kinase 1 over PERK. The most selective compounds were screened in vitro for their ability to inhibit RIPK1-dependent apoptosis and necroptosis. With this work, we successfully synthesised a novel series of potent and selective type II Receptor-Interacting serine/threonine-Protein Kinase 1 inhibitors based on the GSK'157 scaffold.
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Affiliation(s)
- Camilla Scarpellini
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Sophie Valembois
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Kenneth Goossens
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Mike Vadi
- Vlaams Instituut voor Biotechnologie (VIB) Center for Inflammation Research, Ghent, Belgium
- Laboratory Cell Death and Inflammation, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Caroline Lanthier
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Greta Klejborowska
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Pieter Van Der Veken
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Hans De Winter
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Mathieu J. M. Bertrand
- Vlaams Instituut voor Biotechnologie (VIB) Center for Inflammation Research, Ghent, Belgium
- Laboratory Cell Death and Inflammation, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Koen Augustyns
- Laboratory of Medicinal Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
- *Correspondence: Koen Augustyns,
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24
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Dudka W, Hoser G, Mondal SS, Turos-Korgul L, Swatler J, Kusio-Kobialka M, Wołczyk M, Klejman A, Brewinska-Olchowik M, Kominek A, Wiech M, Machnicki MM, Seferynska I, Stoklosa T, Piwocka K. Targeting integrated stress response with ISRIB combined with imatinib treatment attenuates RAS/RAF/MAPK and STAT5 signaling and eradicates chronic myeloid leukemia cells. BMC Cancer 2022; 22:1254. [PMID: 36460969 PMCID: PMC9719211 DOI: 10.1186/s12885-022-10289-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 11/07/2022] [Indexed: 12/05/2022] Open
Abstract
The integrated stress response (ISR) facilitates cellular adaptation to unfavorable conditions by reprogramming the cellular response. ISR activation was reported in neurological disorders and solid tumors; however, the function of ISR and its role as a possible therapeutic target in hematological malignancies still remain largely unexplored. Previously, we showed that the ISR is activated in chronic myeloid leukemia (CML) cells and correlates with blastic transformation and tyrosine kinase inhibitor (TKI) resistance. Moreover, the ISR was additionally activated in response to imatinib as a type of protective internal signaling. Here, we show that ISR inhibition combined with imatinib treatment sensitized and more effectively eradicated leukemic cells both in vitro and in vivo compared to treatment with single agents. The combined treatment specifically inhibited the STAT5 and RAS/RAF/MEK/ERK pathways, which are recognized as drivers of resistance. Mechanistically, this drug combination attenuated both interacting signaling networks, leading to BCR-ABL1- and ISR-dependent STAT5 activation. Consequently, leukemia engraftment in patient-derived xenograft mice bearing CD34+ TKI-resistant CML blasts carrying PTPN11 mutation responsible for hyperactivation of the RAS/RAF/MAPK and JAK/STAT5 pathways was decreased upon double treatment. This correlated with the downregulation of genes related to the RAS/RAF/MAPK, JAK/STAT5 and stress response pathways and was associated with lower expression of STAT5-target genes regulating proliferation, viability and the stress response. Collectively, these findings highlight the effect of imatinib plus ISRIB in the eradication of leukemic cells resistant to TKIs and suggest potential clinical benefits for leukemia patients with TKI resistance related to RAS/RAF/MAPK or STAT5 signaling. We propose that personalized treatment based on the genetic selection of patients carrying mutations that cause overactivation of the targeted pathways and therefore make their sensitivity to such treatment probable should be considered as a possible future direction in leukemia treatment.
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Affiliation(s)
- Wioleta Dudka
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Grazyna Hoser
- Center of Postgraduate Medical Education, Laboratory of Flow Cytometry, Warsaw, Poland
| | - Shamba S. Mondal
- grid.419305.a0000 0001 1943 2944Laboratory of Bioinformatics, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Laura Turos-Korgul
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Julian Swatler
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Monika Kusio-Kobialka
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Magdalena Wołczyk
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Agata Klejman
- grid.419305.a0000 0001 1943 2944Laboratory of Animal Models, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Marta Brewinska-Olchowik
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Agata Kominek
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Milena Wiech
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Marcin M. Machnicki
- grid.13339.3b0000000113287408Department of Tumor Biology and Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Ilona Seferynska
- grid.419032.d0000 0001 1339 8589Department of Hematology, Institute of Hematology and Blood Transfusion, Warsaw, Poland
| | - Tomasz Stoklosa
- grid.13339.3b0000000113287408Department of Tumor Biology and Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Katarzyna Piwocka
- grid.419305.a0000 0001 1943 2944Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
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25
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Xu D, Liu Z, Liang MX, Fei YJ, Zhang W, Wu Y, Tang JH. Endoplasmic reticulum stress targeted therapy for breast cancer. Cell Commun Signal 2022; 20:174. [PMCID: PMC9639265 DOI: 10.1186/s12964-022-00964-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/25/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractRecurrence, metastasis, and drug resistance are still big challenges in breast cancer therapy. Internal and external stresses have been proven to substantially facilitate breast cancer progression through molecular and systemic mechanisms. For example, endoplasmic reticulum stress (ERS) results in activation of the unfolded protein response (UPR), which are considered an important cellular stress response. More and more reports indicate its key role in protein homeostasis and other diverse functions involved in the process of breast cancer progression. Therefore, therapies targeting the activation of ERS and its downstream signaling pathways are potentially helpful and novel tools to counteract and fight breast cancer. However, recent advances in our understanding of ERS are focused on characterizing and modulating ERS between healthy and disease states, and so little attention has been paid to studying the role and clinical application of targeting ERS in a certain cancer. In this review, we summarize the function and main mechanisms of ERS in different molecular types of breast cancer, and focus on the development of agents targeting ERS to provide new treatment strategies for breast cancer.
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26
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Johnson TC, Marsden SP. Three-Component Synthesis of Pyridylacetic Acid Derivatives by Arylation/Decarboxylative Substitution of Meldrum's Acids. J Org Chem 2022; 87:13891-13894. [PMID: 36257810 PMCID: PMC9638998 DOI: 10.1021/acs.joc.2c01597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A convenient and simple three-component synthesis of substituted pyridylacetic acid derivatives is reported. The approach centers on the dual reactivity of Meldrum's acid derivatives, initially as nucleophiles to perform substitution on activated pyridine-N-oxides, then as electrophiles with a range of nucleophiles to trigger ring-opening and decarboxylation.
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27
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Shin S, Solorzano J, Liauzun M, Pyronnet S, Bousquet C, Martineau Y. Translational alterations in pancreatic cancer: a central role for the integrated stress response. NAR Cancer 2022; 4:zcac031. [PMID: 36325577 PMCID: PMC9615149 DOI: 10.1093/narcan/zcac031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022] Open
Abstract
mRNA translation is a key mechanism for cancer cell proliferation and stress adaptation. Regulation of this machinery implicates upstream pathways such as PI3K/AKT/mTOR, RAS/MEK/ERK and the integrated stress response (ISR), principally coordinating the translation initiation step. During the last decade, dysregulation of the mRNA translation process in pancreatic cancer has been widely reported, and shown to critically impact on cancer initiation, development and survival. This includes translation dysregulation of mRNAs encoding oncogenes and tumor suppressors. Hence, cancer cells survive a stressful microenvironment through a flexible regulation of translation initiation for rapid adaptation. The ISR pathway has an important role in chemoresistance and shows high potential therapeutic interest. Despite the numerous translational alterations reported in pancreatic cancer, their consequences are greatly underestimated. In this review, we summarize the different translation dysregulations described in pancreatic cancer, which make it invulnerable, as well as the latest drug discoveries bringing a glimmer of hope.
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Affiliation(s)
- Sauyeun Shin
- Centre de Recherche en Cancérologie de Toulouse (CRCT), INSERM U1037, Université Toulouse III Paul Sabatier, ERL5294 CNRS, Toulouse, France,Equipe labellisée Ligue Contre le Cancer
| | - Jacobo Solorzano
- Centre de Recherche en Cancérologie de Toulouse (CRCT), INSERM U1037, Université Toulouse III Paul Sabatier, ERL5294 CNRS, Toulouse, France,Equipe labellisée Ligue Contre le Cancer
| | - Mehdi Liauzun
- Centre de Recherche en Cancérologie de Toulouse (CRCT), INSERM U1037, Université Toulouse III Paul Sabatier, ERL5294 CNRS, Toulouse, France,Equipe labellisée Ligue Contre le Cancer
| | - Stéphane Pyronnet
- Centre de Recherche en Cancérologie de Toulouse (CRCT), INSERM U1037, Université Toulouse III Paul Sabatier, ERL5294 CNRS, Toulouse, France,Equipe labellisée Ligue Contre le Cancer
| | - Corinne Bousquet
- Centre de Recherche en Cancérologie de Toulouse (CRCT), INSERM U1037, Université Toulouse III Paul Sabatier, ERL5294 CNRS, Toulouse, France,Equipe labellisée Ligue Contre le Cancer
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28
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Ebrahimi N, Saremi J, Ghanaatian M, Yazdani E, Adelian S, Samsami S, Moradi N, Rostami Ravari N, Ahmadi A, Hamblin MR, Aref AR. The role of endoplasmic reticulum stress in the regulation of long noncoding RNAs in cancer. J Cell Physiol 2022; 237:3752-3767. [PMID: 35959643 DOI: 10.1002/jcp.30846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 07/17/2022] [Accepted: 07/19/2022] [Indexed: 11/09/2022]
Abstract
Cancer cells must overcome a variety of external and internal stresses to survive and proliferate. These unfavorable conditions include the accumulation of mutations, nutrient deficiency, oxidative stress, and hypoxia. These stresses can cause aggregation of misfolded proteins inside the endoplasmic reticulum. Under these conditions, the cell undergoes endoplasmic reticulum stress (ER-stress), and consequently initiates the unfolded protein response (UPR). Activation of the UPR triggers transcription factors and regulatory factors, including long noncoding RNAs (lncRNAs), which control the gene expression profile to maintain cellular stability and hemostasis. Recent investigations have shown that cancer cells can ensure their survival under adverse conditions by the UPR affecting the expression of lncRNAs. Therefore, understanding the relationship between lncRNA expression and ER stress could open new avenues, and suggest potential therapies to treat various types of cancer.
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Affiliation(s)
- Nasim Ebrahimi
- Genetics Division, Department of Cell and Molecular Biology and Microbiology, Faculty of Science and Technology, University of Isfahan, Isfahan, Iran
| | - Jamileh Saremi
- Research Center for Noncommunicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Masoud Ghanaatian
- Department of Microbiology, Islamic Azad University of Jahrom, Jahrom, Iran
| | - Elnaz Yazdani
- Department of Biology, Faculty of Science, University of Isfahan, Isfahan, Iran.,Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Samaneh Adelian
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Sahar Samsami
- Biotechnology Department of Fasa University of Medical Science, Fasa, Iran
| | - Neda Moradi
- Division of Biotechnology, Department of Cell and Molecular Biology and Microbiology, Nourdanesh Institute of Higher Education, University of Meymeh, Isfahan, Iran
| | - Nadi Rostami Ravari
- Department of Biology, Faculty of Science, Islamic Azad University, Kerman, Iran
| | - Amirhossein Ahmadi
- Department of Biological Science and Technology, Faculty of Nano and Bio Science and Technology, Persian Gulf University, Bushehr, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
| | - Amir Reza Aref
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.,Xsphera Biosciences, Translational Medicine group, 6 Tide Street, Boston, MA, 02210, USA
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29
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Fang Z, Gao W, Jiang Q, Loor JJ, Zhao C, Du X, Zhang M, Song Y, Wang Z, Liu G, Li X, Lei L. Targeting IRE1α and PERK in the endoplasmic reticulum stress pathway attenuates fatty acid-induced insulin resistance in bovine hepatocytes. J Dairy Sci 2022; 105:6895-6908. [PMID: 35840398 DOI: 10.3168/jds.2021-21754] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/14/2022] [Indexed: 11/19/2022]
Abstract
Endoplasmic reticulum (ER) stress can be induced by various stimuli and triggers the unfolded protein response to activate intracellular signaling pathways that are mediated by 3 ER-resident sensors: inositol requiring protein-1α (IRE1α), PKR-like ER kinase (PERK), and activating transcription factor-6 (ATF6). In nonruminants, ER stress plays a critical role in hepatic insulin resistance. However, whether ER stress plays a role in nonesterified fatty acid (NEFA)-induced hepatic insulin resistance in dairy cows is still unknown. Experiments were conducted using primary bovine hepatocytes isolated from 5 healthy calves (body weight: 30-40 kg; 1 d old). First, hepatocytes were treated with NEFA (1.2 mM) for 0.5, 1, 2, 3, 5, 7, 9, or 12 h. Treatment with NEFA elevated abundance of phosphorylated IRE1α and PERK, and cleavage of ATF6, along with the ER stress-associated genes XBP1, ATF4, and DNAJC3, resulting in both linear and quadratic effects. Furthermore, ER Tracker red staining and transmission electron microscopy results indicated that ER was dilated and degranulated in response to NEFA treatment, suggesting that ER stress was induced by NEFA treatment in bovine hepatocytes. Second, to assess the effect of ER stress on NEFA-induced insulin resistance, hepatocytes were treated with different concentrations of NEFA (0, 0.6, 1.2, or 2.4 mM) for 5 h with or without tauroursodeoxycholic acid (TUDCA, a canonical inhibitor of ER stress). Here, NEFA induced insulin resistance by increasing the abundance of insulin receptor substrate-1 (IRS1) phosphorylation at the inhibitory residue Ser 307 (S307) and decreasing the abundance of phosphorylated protein kinase B (AKT) and glycogen synthase kinase-3β (GSK3β) in a dose-dependent manner. This was accompanied by upregulation of an abundance of gluconeogenic genes [phosphoenolpyruvate carboxykinase (PEPCK) and glucose-6-phosphatase (G6-Pase)]. These detrimental effects of NEFA on insulin signaling could be reversed with TUDCA treatment, indicating a mechanistic link between ER stress and NEFA-induced insulin resistance. In a third experiment, pGPU6/GFP/Neo vectors containing short hairpin RNA targeting IRE1α were used to silence IRE1α transcription, and GSK2656157 (PERK phosphorylation inhibitor) and 4-(2-aminoethyl) benzenesulfonyl fluoride (AEBSF; an inhibitor of ATF6) were used to block PERK and ATF6 branches, respectively. Notably, the silencing of the IRE1α branch improved NEFA-induced insulin resistance by decreasing phosphorylation of IRS1 (S307) and increasing phosphorylation of AKT and GSK3β, and reducing PEPCK and G6-Pase mRNA abundance, which was likely dependent on IRE1α kinase activity. Similarly, blockage of the PERK branch increased phosphorylation of AKT and GSK3β, and reduced PEPCK and G6-Pase mRNA abundance, but had no effect on phosphorylation of IRS1 (S307). However, results showed that inhibition of the ATF6 branch had no effects on phosphorylation of IRS1, AKT, and GSK3β, and instead found increasing PEPCK and G6-Pase mRNA abundance. Taken together, data in the present study found that impeding IRE1α and PERK signaling might aid in relieving hepatic insulin resistance. However, the more detailed mechanisms of how IRE1α and PERK signaling contribute to hepatic insulin resistance in dairy cows remain to be determined.
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Affiliation(s)
- Zhiyuan Fang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Wenwen Gao
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Qianming Jiang
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - Juan J Loor
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - Chenchen Zhao
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Xiliang Du
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Min Zhang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Yuxiang Song
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Zhe Wang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Guowen Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Xinwei Li
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China
| | - Lin Lei
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, Jilin, China.
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Gallez B. The Role of Imaging Biomarkers to Guide Pharmacological Interventions Targeting Tumor Hypoxia. Front Pharmacol 2022; 13:853568. [PMID: 35910347 PMCID: PMC9335493 DOI: 10.3389/fphar.2022.853568] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 06/23/2022] [Indexed: 12/12/2022] Open
Abstract
Hypoxia is a common feature of solid tumors that contributes to angiogenesis, invasiveness, metastasis, altered metabolism and genomic instability. As hypoxia is a major actor in tumor progression and resistance to radiotherapy, chemotherapy and immunotherapy, multiple approaches have emerged to target tumor hypoxia. It includes among others pharmacological interventions designed to alleviate tumor hypoxia at the time of radiation therapy, prodrugs that are selectively activated in hypoxic cells or inhibitors of molecular targets involved in hypoxic cell survival (i.e., hypoxia inducible factors HIFs, PI3K/AKT/mTOR pathway, unfolded protein response). While numerous strategies were successful in pre-clinical models, their translation in the clinical practice has been disappointing so far. This therapeutic failure often results from the absence of appropriate stratification of patients that could benefit from targeted interventions. Companion diagnostics may help at different levels of the research and development, and in matching a patient to a specific intervention targeting hypoxia. In this review, we discuss the relative merits of the existing hypoxia biomarkers, their current status and the challenges for their future validation as companion diagnostics adapted to the nature of the intervention.
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Zhang L, Zhou J, Feng Z, Jiang B, Li C, Zhou L, Zhou X. Qingluo Tongbi Formula Alleviates Hepatotoxicity Induced by Tripterygium wilfordii Hook. F. by Regulating Excessive Mitophagy Through the PERK-ATF4 Pathway. Front Pharmacol 2022; 13:918466. [PMID: 35873540 PMCID: PMC9301126 DOI: 10.3389/fphar.2022.918466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/17/2022] [Indexed: 12/23/2022] Open
Abstract
Qingluo Tongbi Formula (QTF) is an empirical formula of Chinese medicine master Zhongying Zhou for the treatment of rheumatoid arthritis. Although including Tripterygium wilfordii Hook. F. (TW), it has not shown liver toxicity in clinical application for many years. Our previous studies have shown that QTF can significantly reduce TW-caused hepatotoxicity, but the mechanism is still unclear. This study aimed to explore the important roles of mitophagy and endoplasmic reticulum stress (ERS) and the relationship between them in QTF in alleviating TW-induced hepatotoxicity. In vivo, C57BL/6J female mice were used to build a model of TW-induced liver toxicity; Then mice were randomly divided into control, TW, TW + RG, TW + PN, TW + SA, TW + BM, and QTF groups. After intragastric administration for 7 days, the levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and lactate dehydrogenase (LDH) in serum were detected; H and E staining, Oil Red O staining, transmission electron microscopy, Western blotting, and RT-qPCR were used to detect the pathological changes in liver tissue, the levels of ERS and mitophagy related proteins and genes, including GRP78, PERK, DRP1, LC3, etc., In vitro, triptolide (TP), catalpol (CAT), and panax notoginseng saponins (PNS), the main active ingredients of QTF, were selected. The mitophagy inhibitor, ERS inhibitor, and PERK inhibitor were used to further study the relationship between TW-induced ERS and mitophagy in HepaRG cells. The results showed that, QTF reduced excessive mitophagy and ERS in TW-induced hepatotoxicity in C57BL/6J mice, and the attenuating effects of RG and PN in QTF were most obvious, and they also significantly restrained the TW-induced ERS and mitophagy by the PERK-ATF4 pathway. Furthermore, PNS was superior to CAT in inhibiting the expression levels of GRP78, PERK, and ATF4, while CAT was superior to PNS in reversing the expression levels of DRP1, P62, and LC3. The combination of CAT and PNS had the best attenuating effect and the most significant regulation on ERS and mitophagy. In conclusion, QTF can alleviate TW-induced hepatotoxicity by differentially downregulating the PERK-ATF4 pathway and excessive mitophagy by different components.
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Affiliation(s)
- Linluo Zhang
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jie Zhou
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhe Feng
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Baoping Jiang
- Jiangsu Provincial Key Laboratory of Pharmacology and Safety Evaluation of Material Medical, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Changqing Li
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Lingling Zhou
- Jiangsu Provincial Key Laboratory of Pharmacology and Safety Evaluation of Material Medical, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Lingling Zhou, ; Xueping Zhou,
| | - Xueping Zhou
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Lingling Zhou, ; Xueping Zhou,
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Schwed-Gross A, Hamiel H, Faber GP, Angel M, Ben-Yishay R, Benichou JIC, Ishay-Ronen D, Shav-Tal Y. Glucocorticoids enhance chemotherapy-driven stress granule assembly and impair granule dynamics leading to cell death. J Cell Sci 2022; 135:276097. [PMID: 35713120 PMCID: PMC9450892 DOI: 10.1242/jcs.259629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 06/13/2022] [Indexed: 11/20/2022] Open
Abstract
Stress granules (SGs) can assemble in cancer cells upon chemotoxic stress. Glucocorticoids function during stress responses and are administered with chemotherapies. The roles of glucocorticoids in SG assembly and disassembly pathways are unknown. We examined whether combining glucocorticoids such as cortisone with chemotherapies from the vinca alkaloid family, which dismantle the microtubule network, affects SG assembly and disassembly pathways and influences cell viability in cancer cells and human-derived organoids. Cortisone augmented SG formation when combined with vinorelbine (VRB). Live-cell imaging showed that cortisone increased SG assembly rates but reduced SG clearance rates after stress, by increasing protein residence times within the SGs. Mechanistically, VRB and cortisone signaled through the integrated stress response mediated by eIF2α (also known as EIF2S1), yet induced different kinases, with cortisone activating the GCN2 kinase (also known as EIF2AK4). Cortisone increased VRB-induced cell death and reduced the population of cells trapped in mitotic catastrophe. These effects were mediated by the core SG proteins G3BP1 and G3BP2. In conclusion, glucocorticoids induce SG assembly and cell death when administered with chemotherapies, suggesting that combining glucocorticoids with chemotherapies can enhance cancer cell chemosensitivity. Summary: Combining cortisone with the chemotherapy vinorelbine enhances the assembly of stress granules that are less likely to be cleared from the cells, augmenting vinorelbine-induced cell death.
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Affiliation(s)
- Avital Schwed-Gross
- The Mina & Everard Goodman Faculty of Life Sciences & Institute of Nanotechnology, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Hila Hamiel
- The Mina & Everard Goodman Faculty of Life Sciences & Institute of Nanotechnology, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Gabriel P Faber
- The Mina & Everard Goodman Faculty of Life Sciences & Institute of Nanotechnology, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Mor Angel
- The Mina & Everard Goodman Faculty of Life Sciences & Institute of Nanotechnology, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Rakefet Ben-Yishay
- Oncology Institute, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Israel
| | - Jennifer I C Benichou
- The Mina & Everard Goodman Faculty of Life Sciences & Institute of Nanotechnology, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Dana Ishay-Ronen
- Oncology Institute, Chaim Sheba Medical Center, Tel-Hashomer, Ramat Gan, Israel
| | - Yaron Shav-Tal
- The Mina & Everard Goodman Faculty of Life Sciences & Institute of Nanotechnology, Bar-Ilan University, Ramat Gan 5290002, Israel
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Yart L, Bastida-Ruiz D, Allard M, Dietrich PY, Petignat P, Cohen M. Linking unfolded protein response to ovarian cancer cell fusion. BMC Cancer 2022; 22:622. [PMID: 35672715 PMCID: PMC9172076 DOI: 10.1186/s12885-022-09648-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 05/03/2022] [Indexed: 11/10/2022] Open
Abstract
Background Polyploid giant cancer cells (PGCCs) have been observed in epithelial ovarian tumors. They can resist antimitotic drugs, thus participating in tumor maintenance and recurrence. Although their origin remains unclear, PGCC formation seems to be enhanced by conditions that trigger the unfolded protein response (UPR) such as hypoxia or chemotherapeutic drugs like paclitaxel. Hypoxia has been shown to promote the formation of ovarian PGCCs by cell fusion. We thus hypothesized that the UPR could be involved in EOC cell fusion, possibly explaining the occurrence of PGCCs and the aggressiveness of EOC. Methods The UPR was induced in two ovarian cancer cell lines (SKOV3 and COV318). The UPR activation was assessed by Western blot and polyploidy indexes were calculated. Then, to confirm the implication of cell fusion in PGCC formation, two populations of SKOV3 cells were transfected with plasmids encoding for two distinct nuclear fluorescent proteins (GFP and mCherry) associated with different antibiotic resistance genes, and the two cell populations were mixed in co-culture. The co-culture was submitted to a double-antibiotic selection. The resulting cell population was characterized for its morphology, cyclicity, and proliferative and tumorigenic capacities, in addition to transcriptomic characterization. Results We demonstrated that cell fusion could be involved in the generation of ovarian PGCCs and this process was promoted by paclitaxel and the UPR activation. Double-antibiotic treatment of PGCCs led to the selection of a pure population of cells containing both GFP- and mCherry-positive nuclei. Interestingly, after 3 weeks of selection, we observed that these cells were no longer polynucleated but displayed a single nucleus positive for both fluorescent proteins, suggesting that genetic material mixing had occurred. These cells had reinitiated their normal cell cycles, acquired an increased invasive capacity, and could form ovarian tumors in ovo. Conclusions The UPR activation increased the in vitro formation of PGCCs by cell fusion, with the newly generated cells further acquiring new properties. The UPR modulation in ovarian cancer patients could represent an interesting therapeutic strategy to avoid the formation of PGCCs and therefore limit cancer relapse and drug resistance. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09648-4.
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Affiliation(s)
- Lucile Yart
- Center for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland.,Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland
| | - Daniel Bastida-Ruiz
- Center for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland.,Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland
| | - Mathilde Allard
- Center for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland.,Present address: Research Center of Cancerology and Immunology Nantes-Angers, Department of Biology, University of Nantes, FR-44035, Nantes, France
| | - Pierre-Yves Dietrich
- Center for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland
| | - Patrick Petignat
- Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland
| | - Marie Cohen
- Center for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland. .,Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Rue Michel Servet 1, CH-1206, Geneva, Switzerland.
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Walters HA, Welter BH, Moss HC, Villano MA, Orobio-Hurtado R, Sullivan WJ Jr, Temesvari LA. Eukaryotic Initiation Factor 2α Kinases Regulate Virulence Functions, Stage Conversion, and the Stress Response in Entamoeba invadens. mSphere 2022;:e0013122. [PMID: 35638357 DOI: 10.1128/msphere.00131-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Entamoeba histolytica is a protozoan parasite that causes amoebic dysentery and liver abscess. This pathogen possesses a two-stage life cycle consisting of an environmentally stable cyst and a pathogenic amoeboid trophozoite. Since infection is acquired by ingestion of cysts from contaminated food and water, this parasite is prevalent in underdeveloped countries. A reptilian pathogen, Entamoeba invadens, which can encyst in culture, has long served as a surrogate to study stage conversion. In the host, Entamoeba species must manage stress, including nutrient deprivation and host immune pressure. In many systems, the stress response is characterized by downregulation of translation, which is initiated by the phosphorylation of eukaryotic initiation factor-2 alpha (eIF2α). In mammalian cells, this phosphorylation is carried out by a family of eIF2α kinases. A canonical eIF2α translational control system exists in Entamoeba species; however, no eIF2α kinases have been characterized. In this study, we identified two eIF2α kinases in E. invadens, EiIF2K-A and EiIF2K-B. Their identity as eIF2α kinases was validated using a heterologous yeast system. We used an RNA interference (RNAi) trigger-mediated silencing system to reduce expression of EiIF2K-A, which also reduced expression of EiIF2K-B. Parasites with decreased kinase expression exhibited decreased phosphorylation of eIF2α and increased sensitivity to oxidative stress. Diminished kinase expression also correlated with an increased rate of encystation, a decreased rate of excystation, and an increase in several virulence functions, erythrophagocytosis and adhesion to host cells. Taken together, these data suggest that EiIF2K-A and EiIF2K-B are authentic eIF2α kinases that may regulate the Entamoeba stress response. IMPORTANCEEntamoeba histolytica is a human pathogen that causes dysentery and affects millions of people worldwide. This parasite possesses a two-stage life cycle: an environmentally stable cyst and the pathogenic trophozoite. Cysts are ingested from contaminated food and water; thus, this parasite in prevalent in underdeveloped countries. Current therapies commonly cause adverse side effects; therefore, new treatments are needed. In the host, Entamoeba experiences stress brought on, in part, by the host immune system. Understanding stage conversion and the stress response of this pathogen may lead to new drug therapies. Using the model organism E. invadens, we identified two kinases similar to those involved in stress and stage conversion in other systems. We determined that these kinases may regulate the oxidative stress response, stage conversion, and virulence. This work is significant, as it will inform future studies on the life cycle and pathogenicity of Entamoeba species.
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Li Y, Lu L, Zhang G, Ji G, Xu H. The role and therapeutic implication of endoplasmic reticulum stress in inflammatory cancer transformation. Am J Cancer Res 2022; 12:2277-2292. [PMID: 35693091 PMCID: PMC9185617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023] Open
Abstract
Endoplasmic reticulum (ER) stress occurs when proteins are affected by various factors, fail to fold properly into higher structures and accumulate in the lumen of the ER, which activates the unfolded protein response (UPR) to restore normal cellular function or induce apoptosis as a self-protective mechanism. However, a growing number of studies have shown that the three branches of ER stress and the UPR can mediate inflammation and cancer development by interacting with inflammatory transformation-related signaling pathways. Targeting the UPR, especially the use of small molecules that target the active sites of the enzymes IRE1α and PERK and BIP/GRP78 inhibitors are potential strategies for treating tumors and have shown promising results in some tumor models. Therefore, in this review, we summarize the progress of ER stress/UPR research and the signaling pathways associated with inflammatory cancer transformation, provide an in-depth description of the mechanisms of these pathways, and outline strategies in the field of UPR biology in tumor therapy to provide new ideas for the mechanisms of inflammatory cancer transformation and tumor-related treatment.
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Affiliation(s)
- Yuan Li
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine Shanghai 200032, China
| | - Lu Lu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine Shanghai 200032, China
| | - Guangtao Zhang
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine Shanghai 200032, China
| | - Guang Ji
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine Shanghai 200032, China
| | - Hanchen Xu
- Institute of Digestive Diseases, Longhua Hospital, Shanghai University of Traditional Chinese Medicine Shanghai 200032, China
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Almeida LM, Pinho BR, Duchen MR, Oliveira JMA. The PERKs of mitochondria protection during stress: insights for PERK modulation in neurodegenerative and metabolic diseases. Biol Rev Camb Philos Soc 2022; 97:1737-1748. [PMID: 35475315 DOI: 10.1111/brv.12860] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 02/06/2023]
Abstract
Protein kinase RNA-like ER kinase (PERK) is an endoplasmic reticulum (ER) stress sensor that responds to the accumulation of misfolded proteins. Once activated, PERK initiates signalling pathways that halt general protein production, increase the efficiency of ER quality control, and maintain redox homeostasis. PERK activation also protects mitochondrial homeostasis during stress. The location of PERK at the contact sites between the ER and the mitochondria creates a PERK-mitochondria axis that allows PERK to detect stress in both organelles, adapt their functions and prevent apoptosis. During ER stress, PERK activation triggers mitochondrial hyperfusion, preventing premature apoptotic fragmentation of the mitochondria. PERK activation also increases the formation of mitochondrial cristae and the assembly of respiratory supercomplexes, enhancing cellular ATP-generating capacity. PERK strengthens mitochondrial quality control during stress by promoting the expression of mitochondrial chaperones and proteases and by increasing mitochondrial biogenesis and mitophagy, resulting in renewal of the mitochondrial network. But how does PERK mediate all these changes in mitochondrial homeostasis? In addition to the classic PERK-eukaryotic translation initiation factor 2α (eIF2α)-activating transcription factor 4 (ATF4) pathway, PERK can activate other protective pathways - PERK-O-linked N-acetyl-glucosamine transferase (OGT), PERK-transcription factor EB (TFEB), and PERK-nuclear factor erythroid 2-related factor 2 (NRF2) - contributing to broader regulation of mitochondrial dynamics, metabolism, and quality control. The pharmacological activation of PERK is protective in models of neurodegenerative and metabolic diseases, such as Huntington's disease, progressive supranuclear palsy and obesity, while the inhibition of PERK was protective in models of Parkinson's and prion diseases and diabetes. In this review, we address the molecular mechanisms by which PERK regulates mitochondrial dynamics, metabolism and quality control, and discuss the therapeutic potential of targeting PERK in neurodegenerative and metabolic diseases.
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Affiliation(s)
- Liliana M Almeida
- UCIBIO-REQUIMTE - Applied Molecular Biosciences Unit, Faculty of Pharmacy, Department of Drug Sciences, Pharmacology Lab, University of Porto, 4050-313, Porto, Portugal.,Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, Department of Drug Sciences, Pharmacology Lab, University of Porto, 4050-313, Porto, Portugal
| | - Brígida R Pinho
- UCIBIO-REQUIMTE - Applied Molecular Biosciences Unit, Faculty of Pharmacy, Department of Drug Sciences, Pharmacology Lab, University of Porto, 4050-313, Porto, Portugal.,Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, Department of Drug Sciences, Pharmacology Lab, University of Porto, 4050-313, Porto, Portugal
| | - Michael R Duchen
- Department of Cell and Developmental Biology, University College London, London, WC1E 6BT, U.K.,Consortium for Mitochondrial Research (CfMR), University College London, Gower Street, London, WC1E 6BT, U.K
| | - Jorge M A Oliveira
- UCIBIO-REQUIMTE - Applied Molecular Biosciences Unit, Faculty of Pharmacy, Department of Drug Sciences, Pharmacology Lab, University of Porto, 4050-313, Porto, Portugal.,Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, Department of Drug Sciences, Pharmacology Lab, University of Porto, 4050-313, Porto, Portugal.,Consortium for Mitochondrial Research (CfMR), University College London, Gower Street, London, WC1E 6BT, U.K
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Huis In 't Veld LGM, Ho NI, Wassink M, den Brok MH, Adema GJ. Saponin-based adjuvant-induced dendritic cell cross-presentation is dependent on PERK activation. Cell Mol Life Sci 2022; 79:231. [PMID: 35396971 DOI: 10.1007/s00018-022-04253-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 12/22/2022]
Abstract
Saponin-based adjuvants (SBAs) are promising new adjuvants that stand out as they not only enforce CD4 + T cell-mediated immunity and antibody responses, but also induce an unprecedented level of antigen cross-presentation by dendritic cells (DC) and subsequent CD8 + T cell activation. We discovered that SBA’s ability to boost cross-presentation depends on the induction of lipid bodies (LBs). Moreover, the MHCIIloCD11bhi DC subset was identified to be most responsive to SBA-induced cross-presentation. The aim is to further unravel the mechanisms behind the induction of DC cross-presentation by SBAs. Here we show that SBAs specifically induce the PKR-like Endoplasmic Reticulum kinase (PERK) pathway and that SBA-induced DC cross-presentation is dependent on activation of the PERK pathway. PERK activation and LB formation are both crucial for SBA-induced cross-presentation and PERK inhibition has little or no effect on SBA-induced LB formation. SBA’s responsiveness, LB formation and PERK activation are specific for the MHCIIloCD11bhi DCs. These findings contribute to understanding the pathways involved in SBA-induced cross-presentation and immune activation which will ultimately lead to the development of vaccines with improved efficiency and safety.
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Kour S, Rana S, Kubica SP, Kizhake S, Ahmad M, Muñoz-trujillo C, Klinkebiel D, Singh S, Mallareddy JR, Chandra S, Woods NT, Karpf AR, Natarajan A. Spirocyclic dimer SpiD7 activates the unfolded protein response to selectively inhibit growth and induce apoptosis of cancer cells. J Biol Chem 2022. [PMID: 35378132 PMCID: PMC9062249 DOI: 10.1016/j.jbc.2022.101890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 11/25/2022] Open
Abstract
The unfolded protein response (UPR) is an adaptation mechanism activated to resolve transient accumulation of unfolded/misfolded proteins in the endoplasmic reticulum. Failure to resolve the transient accumulation of such proteins results in UPR-mediated programmed cell death. Loss of tumor suppressor gene or oncogene addiction in cancer cells can result in sustained higher basal UPR levels; however, it is not clear if these higher basal UPR levels in cancer cells can be exploited as a therapeutic strategy. We hypothesized that covalent modification of surface-exposed cysteine (SEC) residues could simulate unfolded/misfolded proteins to activate the UPR, and that higher basal UPR levels in cancer cells would provide the necessary therapeutic window. To test this hypothesis, here we synthesized analogs that can covalently modify multiple SEC residues and evaluated them as UPR activators. We identified a spirocyclic dimer, SpiD7, and evaluated its effects on UPR activation signals, that is, XBP1 splicing, phosphorylation of eIF2α, and a decrease in ATF 6 levels, in normal and cancer cells, which were further confirmed by RNA-Seq analyses. We found that SpiD7 selectively induced caspase-mediated apoptosis in cancer cells, whereas normal cells exhibited robust XBP1 splicing, indicating adaptation to stress. Furthermore, SpiD7 inhibited the growth of high-grade serous carcinoma cell lines ~3-15-fold more potently than immortalized fallopian tube epithelial (paired normal control) cells and reduced clonogenic growth of high-grade serous carcinoma cell lines. Our results suggest that induction of the UPR by covalent modification of SEC residues represents a cancer cell vulnerability and can be exploited to discover novel therapeutics.
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Ebert SM, Rasmussen BB, Judge AR, Judge SM, Larsson L, Wek RC, Anthony TG, Marcotte GR, Miller MJ, Yorek MA, Vella A, Volpi E, Stern JI, Strub MD, Ryan Z, Talley JJ, Adams CM. Biology of Activating Transcription Factor 4 (ATF4) and Its Role in Skeletal Muscle Atrophy. J Nutr 2022; 152:926-938. [PMID: 34958390 PMCID: PMC8970988 DOI: 10.1093/jn/nxab440] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/17/2021] [Accepted: 12/23/2021] [Indexed: 12/30/2022] Open
Abstract
Activating transcription factor 4 (ATF4) is a multifunctional transcription regulatory protein in the basic leucine zipper superfamily. ATF4 can be expressed in most if not all mammalian cell types, and it can participate in a variety of cellular responses to specific environmental stresses, intracellular derangements, or growth factors. Because ATF4 is involved in a wide range of biological processes, its roles in human health and disease are not yet fully understood. Much of our current knowledge about ATF4 comes from investigations in cultured cell models, where ATF4 was originally characterized and where further investigations continue to provide new insights. ATF4 is also an increasingly prominent topic of in vivo investigations in fully differentiated mammalian cell types, where our current understanding of ATF4 is less complete. Here, we review some important high-level concepts and questions concerning the basic biology of ATF4. We then discuss current knowledge and emerging questions about the in vivo role of ATF4 in one fully differentiated cell type, mammalian skeletal muscle fibers.
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Affiliation(s)
- Scott M Ebert
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Emmyon, Inc., Rochester, MN, USA
| | - Blake B Rasmussen
- Emmyon, Inc., Rochester, MN, USA
- Department of Nutrition, Metabolism and Rehabilitation Sciences, University of Texas Medical Branch, Galveston, TX, USA
| | - Andrew R Judge
- Emmyon, Inc., Rochester, MN, USA
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - Lars Larsson
- Department of Physiology and Pharmacology, Karolinska, Stockholm, Sweden
| | - Ronald C Wek
- Department of Biochemistry and Molecular Biology, Indiana University, Indianapolis, IN, USA
| | - Tracy G Anthony
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA
| | - George R Marcotte
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Matthew J Miller
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Mark A Yorek
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
- Department of Internal Medicine, Iowa City VA Medical Center, Iowa City, IA, USA
| | - Adrian Vella
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Emmyon, Inc., Rochester, MN, USA
| | - Elena Volpi
- Department of Nutrition, Metabolism and Rehabilitation Sciences, University of Texas Medical Branch, Galveston, TX, USA
| | - Jennifer I Stern
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Matthew D Strub
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Zachary Ryan
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | | | - Christopher M Adams
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Emmyon, Inc., Rochester, MN, USA
- Department of Internal Medicine, Iowa City VA Medical Center, Iowa City, IA, USA
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40
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Gao H, He C, Hua R, Guo Y, Wang B, Liang C, Gao L, Shang H, Xu JD. Endoplasmic Reticulum Stress of Gut Enterocyte and Intestinal Diseases. Front Mol Biosci 2022; 9:817392. [PMID: 35402506 PMCID: PMC8988245 DOI: 10.3389/fmolb.2022.817392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/19/2022] [Indexed: 12/21/2022] Open
Abstract
The endoplasmic reticulum, a vast reticular membranous network from the nuclear envelope to the plasma membrane responsible for the synthesis, maturation, and trafficking of a wide range of proteins, is considerably sensitive to changes in its luminal homeostasis. The loss of ER luminal homeostasis leads to abnormalities referred to as endoplasmic reticulum (ER) stress. Thus, the cell activates an adaptive response known as the unfolded protein response (UPR), a mechanism to stabilize ER homeostasis under severe environmental conditions. ER stress has recently been postulated as a disease research breakthrough due to its significant role in multiple vital cellular functions. This has caused numerous reports that ER stress-induced cell dysfunction has been implicated as an essential contributor to the occurrence and development of many diseases, resulting in them targeting the relief of ER stress. This review aims to outline the multiple molecular mechanisms of ER stress that can elucidate ER as an expansive, membrane-enclosed organelle playing a crucial role in numerous cellular functions with evident changes of several cells encountering ER stress. Alongside, we mainly focused on the therapeutic potential of ER stress inhibition in gastrointestinal diseases such as inflammatory bowel disease (IBD) and colorectal cancer. To conclude, we reviewed advanced research and highlighted future treatment strategies of ER stress-associated conditions.
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Affiliation(s)
- Han Gao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chengwei He
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Rongxuan Hua
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yuexin Guo
- Department of Oral Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Boya Wang
- Undergraduate Student of 2018 Eight Program of Clinical Medicine, Peking University Health Science Center, Beijing, China
| | - Chen Liang
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Lei Gao
- Department of Biomedical Informatics, School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Hongwei Shang
- Experimental Center for Morphological Research Platform, Capital Medical University, Beijing, China
| | - Jing-Dong Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- *Correspondence: Jing-Dong Xu,
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Jiang N, Huang R, Zhang J, Xu D, Li T, Sun Z, Su L, Peng Z. TIMP2 mediates endoplasmic reticulum stress contributing to sepsis-induced acute kidney injury. FASEB J 2022; 36:e22228. [PMID: 35218571 DOI: 10.1096/fj.202101555rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/31/2022] [Accepted: 02/11/2022] [Indexed: 12/29/2022]
Abstract
Tissue inhibitor of metalloproteinase 2 (TIMP2) has been recognized as an important biomarker for predicting acute kidney injury (AKI) because of its involvement in the process of inflammation and apoptosis in septic AKI. Endoplasmic reticulum (ER) stress, a condition of disrupted ER homeostasis, is implicated in multiple pathophysiological processes, including kidney disease. Herein, we investigated the correlation between ER stress and septic AKI and further explored how TIMP2 regulated ER stress-mediated apoptosis. To assess the role of TIMP2 in sepsis-induced AKI, we used a cecal ligation and puncture (CLP) model in mice with tubule-specific deficiency of TIMP2 (Ksp-Cre/TIMP2flox / flox ) and their wild-type counterparts. Compared to the wild-type mice, TIMP2-deficient mice demonstrated lower serum creatinine levels and decreased ER stress-mediated apoptosis when subjected to CLP. Interestingly, in human kidney (HK-2) cells, overexpression of TIMP2 caused ER stress, whereas TIMP2 knockdown attenuated lipopolysaccharide-induced ER stress and apoptosis. TIMP2 interacted with the binding immunoglobulin protein, an ER chaperone, and facilitates its extracellular secretion, thereby triggering ER stress. This study identified that the deletion of TIMP2 in mouse tubules mitigated sepsis-induced AKI by inhibiting ER stress-mediated apoptosis, which might be a potential therapeutic strategy to alleviate renal injury.
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Affiliation(s)
- Nanhui Jiang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Rong Huang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jiahao Zhang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Dongxue Xu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Tianlong Li
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhongyi Sun
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lianjiu Su
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhiyong Peng
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Critical Care Medicine, Center of Critical Nephrology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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Lee DH, Park JS, Lee YS, Bae SH. PERK prevents hepatic lipotoxicity by activating the p62-ULK1 axis-mediated noncanonical KEAP1-Nrf2 pathway. Redox Biol 2022; 50:102235. [PMID: 35091323 PMCID: PMC8801383 DOI: 10.1016/j.redox.2022.102235] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/16/2021] [Accepted: 01/12/2022] [Indexed: 02/07/2023] Open
Abstract
Hepatic lipotoxicity is a crucial factor in nonalcoholic steatohepatitis resulting from excessive saturated fatty acid-induced reactive oxygen species (ROS)-mediated cell death, which is associated with the accumulation of endoplasmic reticulum (ER) stress in the liver. The unfolded protein response (UPR) alleviates ER stress by restoring ER protein folding homeostasis. However, whether UPR contributes ROS elimination under lipotoxicity remains unclear. The Kelch like ECH-associated protein 1 (KEAP1)-nuclear factor, erythroid 2 like 2 (Nrf2) pathway provides antioxidant defense against lipotoxic stress by eliminating ROS and can be activated by the p62-Unc-51 like autophagy activating kinase 1 (ULK1) axis. However, the upstream molecular regulator of the p62-ULK1 axis-induced KEAP1-Nrf2 pathway in the same context remains unidentified. Here, we demonstrated that PKR-like ER kinase (PERK), a UPR sensor, directly phosphorylates p62 and ULK1, thereby activating the noncanonical KEAP1-Nrf2 pathway. We also elucidated the molecular mechanism underlying the PERK-mediated p62-ULK1 axis-dependent noncanonical KEAP1-Nrf2 pathway, which could represent a promising therapeutic strategy against hepatic lipotoxicity. Hepatic lipotoxicity is a crucial factor in the progression of NASH, associated with the increased ER stress. PERK, one of UPR sensors, activates noncanonical KEAP1-Nrf2 pathway by phosphorylating p62 at S351. PERK also phosphorylates ULK1 at S317, which mediates autophagic KEAP1 degradation and Nrf2 activation. PERK protects mouse liver against lipotoxicity via Nrf2 activation.
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43
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Babagana M, Brown LR, Slabodkin HZ, Kichina JV, Kandel ES. Proteotoxic Stress as an Exploitable Vulnerability in Cells with Hyperactive AKT. Int J Mol Sci 2021; 22:11376. [PMID: 34768807 DOI: 10.3390/ijms222111376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 10/05/2021] [Accepted: 10/14/2021] [Indexed: 11/16/2022] Open
Abstract
Hyperactivity of serine-threonine kinase AKT is one of the most common molecular abnormalities in cancer, where it contributes to poor outcomes by facilitating the growth and survival of malignant cells. Despite its well-documented anti-apoptotic effects, hyperactivity of AKT is also known to be stressful to a cell. In an attempt to better elucidate this phenomenon, we observed the signs of proteotoxic stress in cells that harbor hyperactive AKT or have lost its principal negative regulator, PTEN. The activity of HSF1 was predictably elevated under these circumstances. However, such cells proved more sensitive to various regimens of heat shock, including the conditions that were well-tolerated by syngeneic cells without AKT hyperactivity. The sensitizing effect of hyperactive AKT was also seen in HSF1-deficient cells, suggesting that the phenomenon does not require the regulation of HSF1 by this kinase. Notably, the elevated activity of AKT was accompanied by increased levels of XBP1, a key component of cell defense against proteotoxic stress. Interestingly, the cells harboring hyperactive AKT were also more dependent on XBP1 for their growth. Our observations suggest that proteotoxic stress conferred by hyperactive AKT represents a targetable vulnerability, which can be exploited by either elevating the stress above the level tolerated by such cells or by eliminating the factors that enable such tolerance.
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44
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Anand A, Sharma A, Ravins M, Biswas D, Ambalavanan P, Lim KXZ, Tan RYM, Johri AK, Tirosh B, Hanski E. Unfolded protein response inhibitors cure group A streptococcal necrotizing fasciitis by modulating host asparagine. Sci Transl Med 2021; 13:13/605/eabd7465. [PMID: 34349034 DOI: 10.1126/scitranslmed.abd7465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 02/24/2021] [Accepted: 06/25/2021] [Indexed: 11/02/2022]
Abstract
Group A streptococcus (GAS) is among the top 10 causes of mortality from an infectious disease, producing mild to invasive life-threatening manifestations. Necrotizing fasciitis (NF) is characterized by a rapid GAS spread into fascial planes followed by extensive tissue destruction. Despite prompt treatments of antibiotic administration and tissue debridement, mortality from NF is still high. Moreover, there is no effective vaccine against GAS, and early diagnosis of NF is problematic because its clinical presentations are not specific. Thus, there is a genuine need for effective treatments against GAS NF. Previously, we reported that GAS induces endoplasmic reticulum (ER) stress to gain asparagine from the host. Here, we demonstrate that GAS-mediated asparagine induction and release occur through the PERK-eIF2α-ATF4 branch of the unfolded protein response. Inhibitors of PERK or integrated stress response (ISR) blocked the formation and release of asparagine by infected mammalian cells, and exogenously added asparagine overcame this inhibition. Moreover, in a murine model of NF, we show that the inhibitors minimized mortality when mice were challenged with a lethal dose of GAS and reduced bacterial counts and lesion size when mice were challenged with a sublethal dose. Immunohistopathology studies demonstrated that PERK/ISR inhibitors protected mice by enabling neutrophil infiltration into GAS-infected fascia and reducing the pro-inflammatory response that causes tissue damage. Inhibitor treatment was also effective in mice when started at 12 hours after infection. We conclude that host metabolic alteration induced by PERK or ISR inhibitors is a promising therapeutic strategy to treat highly invasive GAS infections.
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Affiliation(s)
- Aparna Anand
- Department of Microbiology and Molecular Genetics, The Institute for Medical Research, Israel-Canada (IMRIC), Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Abhinay Sharma
- Department of Microbiology and Molecular Genetics, The Institute for Medical Research, Israel-Canada (IMRIC), Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Miriam Ravins
- Department of Microbiology and Molecular Genetics, The Institute for Medical Research, Israel-Canada (IMRIC), Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Debabrata Biswas
- Singapore-HUJ Alliance for Research and Enterprise, MMID Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 117576, Singapore.,Department of Microbiology and Immunology, National University of Singapore, Singapore 138602, Singapore
| | - Poornima Ambalavanan
- Singapore-HUJ Alliance for Research and Enterprise, MMID Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 117576, Singapore.,Department of Microbiology and Immunology, National University of Singapore, Singapore 138602, Singapore
| | - Kimberly Xuan Zhen Lim
- Singapore-HUJ Alliance for Research and Enterprise, MMID Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 117576, Singapore.,Department of Microbiology and Immunology, National University of Singapore, Singapore 138602, Singapore
| | - Rachel Ying Min Tan
- Singapore-HUJ Alliance for Research and Enterprise, MMID Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 117576, Singapore.,Department of Microbiology and Immunology, National University of Singapore, Singapore 138602, Singapore
| | - Atul Kumar Johri
- School of Life Sciences, Jawaharlal Nehru University, New Mehrauli Road, New Delhi 110067, India
| | - Boaz Tirosh
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel.
| | - Emanuel Hanski
- Department of Microbiology and Molecular Genetics, The Institute for Medical Research, Israel-Canada (IMRIC), Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel. .,Singapore-HUJ Alliance for Research and Enterprise, MMID Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 117576, Singapore.,Department of Microbiology and Immunology, National University of Singapore, Singapore 138602, Singapore
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Liang D, Khoonkari M, Avril T, Chevet E, Kruyt FAE. The unfolded protein response as regulator of cancer stemness and differentiation: Mechanisms and implications for cancer therapy. Biochem Pharmacol 2021; 192:114737. [PMID: 34411568 DOI: 10.1016/j.bcp.2021.114737] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 12/12/2022]
Abstract
The unfolded protein response (UPR) is an adaptive mechanism that regulates protein and cellular homeostasis. Three endoplasmic reticulum (ER) membrane localized stress sensors, IRE1, PERK and ATF6, coordinate the UPR in order to maintain ER proteostasis and cell survival, or induce cell death when homeostasis cannot be restored. However, recent studies have identified alternative functions for the UPR in developmental biology processes and cell fate decisions under both normal and cancerous conditions. In cancer, increasing evidence points towards the involvement of the three UPR sensors in oncogenic reprogramming and the regulation of tumor cells endowed with stem cell properties, named cancer stem cells (CSCs), that are considered to be the most malignant cells in tumors. Here we review the reported roles and underlying molecular mechanisms of the three UPR sensors in regulating stemness and differentiation, particularly in solid tumor cells, processes that have a major impact on tumor aggressiveness. Mainly PERK and IRE1 branches of the UPR were found to regulate CSCs and tumor development and examples are provided for breast cancer, colon cancer and aggressive brain tumors, glioblastoma. Although the underlying mechanisms and interactions between the different UPR branches in regulating stemness in cancer need to be further elucidated, we propose that PERK and IRE1 targeted therapy could inhibit self-renewal of CSCs or induce differentiation that is predicted to have therapeutic benefit. For this, more specific UPR modulators need to be developed with favorable pharmacological properties that together with patient stratification will allow optimal evaluation in clinical studies.
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Affiliation(s)
- Dong Liang
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Mohammad Khoonkari
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Tony Avril
- INSERM U1242, Université de Rennes, Rennes, France; Centre de lutte contre le cancer Eugène Marquis, Rennes, France
| | - Eric Chevet
- INSERM U1242, Université de Rennes, Rennes, France; Centre de lutte contre le cancer Eugène Marquis, Rennes, France
| | - Frank A E Kruyt
- Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
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Licari E, Sánchez-Del-Campo L, Falletta P. The two faces of the Integrated Stress Response in cancer progression and therapeutic strategies. Int J Biochem Cell Biol 2021; 139:106059. [PMID: 34400318 DOI: 10.1016/j.biocel.2021.106059] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/08/2021] [Accepted: 08/10/2021] [Indexed: 01/05/2023]
Abstract
In recent years considerable progress has been made in identifying the impact of mRNA translation in tumour progression. Cancer cells hijack the pre-existing translation machinery to thrive under the adverse conditions originating from intrinsic oncogenic programs, that increase their energetic demand, and from the hostile microenvironment. A key translation program frequently dysregulated in cancer is the Integrated Stress Response, that reprograms translation by attenuating global protein synthesis to decrease metabolic demand while increasing translation of specific mRNAs that support survival, migration, immune escape. In this review we provide an overview of the Integrated Stress Response, emphasise its dual role during tumorigenesis and cancer progression, and highlight the therapeutic strategies available to target it.
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Affiliation(s)
| | - Luis Sánchez-Del-Campo
- Department of Biochemistry and Molecular Biology A, School of Biology, IMIB-University of Murcia, 30100, Spain
| | - Paola Falletta
- Experimental Imaging Center, IRCCS Ospedale San Raffaele, Milan, Italy.
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47
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Mufrrih M, Chen B, Chan SW. Zika Virus Induces an Atypical Tripartite Unfolded Protein Response with Sustained Sensor and Transient Effector Activation and a Blunted BiP Response. mSphere 2021; 6:e0036121. [PMID: 34106769 DOI: 10.1128/mSphere.00361-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
To study how the Zika virus (ZIKV) interacts with the host unfolded protein response (UPR), we undertook a kinetics study. We show that ZIKV infection triggers an atypical tripartite UPR in A549 cells involving transient activation of the effectors X-box-binding protein 1, activating transcription factor 4 (ATF4), CCAAT enhancer-binding protein-homologous protein, and growth arrest and DNA damage-inducible protein 34 during early infection and sustained activation of all three UPR sensors: RNA-activated protein kinase-like endoplasmic reticulum-resident kinase (PERK), inositol-requiring kinase-1α (IRE1α), and ATF6. Sustained phosphorylation of the eukaryotic translation initiation factor 2α and rRNA degradation coincide with host translational shutoff, cell lysis, and virus release during late infection. We show a blunted response of the master negative regulator, the immunoglobulin heavy-chain-binding protein (BiP), by chemical UPR inducers, and we show that ZIKV suppresses BiP transcription and translation, suggesting that it may be necessary to blunt the BiP response to sustain UPR sensor activation. The PERK inhibitor GSK2606414 alone has no effects but synergizes with the ATF6 inhibitor Ceapin-A7 to inhibit early and late infection, whereas Ceapin-A7 alone inhibits late infection. Likewise, 4-phenylbutyric acid inhibits ZIKV replication by attenuating the PERK and ATF6 pathways and potentiating the IRE1α pathway, suggesting that ZIKV infection is differentially and temporally regulated by different UPR arms. ZIKV infection is inhibited by pretreatment of chemical UPR inducers but is refractory to the inhibitory activity of chemical inducers once infection has been established, suggesting that ZIKV has anti-UPR mechanisms that may be able to modulate and co-opt the UPR in its life cycle. IMPORTANCE The Zika virus originates from Africa and Asia but is emerging in other parts of the world. It usually causes an asymptomatic or mild, acute infection but can cause serious neurological complications, such as microcephaly and Guillain-Barré syndromes. Therefore, there is a pressing need for an antiviral. Viruses are obligative parasites and are dependent on the hosts for their propagation. As a result, we can target viruses by targeting host dependency. The host unfolded protein response is a cellular homeostatic response to stresses but can also be triggered by virus infections. We show here that Zika virus infection can cause stress and trigger the unfolded protein response. The Zika virus is able to manipulate, subvert, and co-opt the host unfolded protein response to aid its own replication. Understanding host dependency is important in the quest of a new class of antivirals called host-targeting agents.
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48
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McMahon M, Samali A, Chevet E. Maintenance of Endoplasmic Reticulum Protein Homeostasis in Cancer: Friend or Foe. Prog Mol Subcell Biol 2021; 59:197-214. [PMID: 34050868 DOI: 10.1007/978-3-030-67696-4_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
The endoplasmic reticulum, as the site of synthesis for proteins in the secretory pathway has evolved select machineries to ensure the correct folding and modification of proteins. However, sometimes these quality control mechanisms fail and proteins are misfolded. Other factors, such as nutrient deprivation, hypoxia or an increased demand on protein synthesis can also cause the accumulation of unfolded or misfolded proteins in the endoplasmic reticulum. There are mechanisms that recognise and deal with this accumulation of protein through degradation and/or export. Many diseases are associated with aberrant quality control mechanisms, and among these, cancer has emerged as a group of diseases that rely on endoplasmic reticulum homeostasis to sustain development and growth. The knowledge of how protein quality control operates in cancer has identified opportunities for these pathways to be pharmacologically targeted, which could lead to newer or more effective treatments in the future.
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49
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Shi Y, Lu Y, You J. Unfolded protein response in the activation-induced biological processes of CD8 + T cells. Pharmacol Res 2021; 169:105654. [PMID: 33964469 DOI: 10.1016/j.phrs.2021.105654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/13/2021] [Accepted: 04/23/2021] [Indexed: 10/21/2022]
Abstract
As the central part of cellular immunity, primed CD8+ T cells go through different phases of response including activation, clonal expansion, contraction and steady-state turnover, which is accompanied by a fluctuating level of endoplasmic reticulum stress that leads to the elicitation of unfolded protein response (UPR). In turn, UPR casts profound impacts on the activation-induced biological processes of CD8+ T cells, which may greatly determine the magnitude and quality of T-cell based immunity. However, current understanding of the interconnectivity between UPR and T cell-biology is not comprehensive, with details of manipulation largely unexplored. In this review, the molecular basis of UPR involved in different stages of activated CD8+ T cells and its immunological significance are discussed, with potential strategies of regulation proposed, which may provide instructive guidance for the design and optimization of T cell-based immunotherapy.
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Affiliation(s)
- Yingying Shi
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuha ngtang Road, Hangzhou, Zhejiang 310058, PR China
| | - Yichao Lu
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuha ngtang Road, Hangzhou, Zhejiang 310058, PR China
| | - Jian You
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuha ngtang Road, Hangzhou, Zhejiang 310058, PR China.
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Calvo V, Surguladze D, Li AH, Surman MD, Malibhatla S, Bandaru M, Jonnalagadda SK, Adarasandi R, Velmala M, Singireddi DRP, Velpuri M, Nareddy BR, Sastry V, Mandati C, Guguloth R, Siddiqui S, Patil BS, Chad E, Wolfley J, Gasparek J, Feldman K, Betzenhauser M, Wiens B, Koszelak-Rosenblum M, Zhu G, Du H, Rigby AC, Mulvihill MJ. Discovery of 2-amino-3-amido-5-aryl-pyridines as highly potent, orally bioavailable, and efficacious PERK kinase inhibitors. Bioorg Med Chem Lett 2021; 43:128058. [PMID: 33895276 DOI: 10.1016/j.bmcl.2021.128058] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/12/2021] [Accepted: 04/19/2021] [Indexed: 11/20/2022]
Abstract
The protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) is one of the three endoplasmic reticulum (ER) transmembrane sensors of the unfolded protein response (UPR) that regulates protein synthesis, alleviates cellular ER stress and has been implicated in tumorigenesis and prolonged cancer cell survival. In this study, we report a series of 2-amino-3-amido-5-aryl-pyridines that we have identified as potent, selective, and orally bioavailable PERK inhibitors. Amongst the series studied herein, compound (28) a (R)-2-Amino-5-(4-(2-(3,5-difluorophenyl)-2-hydroxyacetamido)-2-ethylphenyl)-N-isopropylnicotinamide has demonstrated potent biochemical and cellular activity, robust pharmacokinetics and 70% oral bioavailability in mice. Given these data, this compound (28) was studied in the 786-O renal cell carcinoma xenograft model. We observed dose-dependent, statistically significant tumor growth inhibition, supporting the use of this tool compound in additional mechanistic studies.
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Affiliation(s)
- Veronica Calvo
- HiberCell Inc. 619 West 54th Street, New York, NY 10019, USA
| | | | - An-Hu Li
- HiberCell Inc. 619 West 54th Street, New York, NY 10019, USA
| | | | - Srikanth Malibhatla
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Madhavarao Bandaru
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | | | - Ravi Adarasandi
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Madhusudhan Velmala
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | | | - Mahendar Velpuri
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Bhaskar Reddy Nareddy
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Visweswara Sastry
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Chiranjeevi Mandati
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Rambabu Guguloth
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Shapi Siddiqui
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Basanagoud S Patil
- AMRI, Plot #9, MN Park, Turkapally, Shameerpet, Genome Valley, RR District, Hyderabad 500078, India
| | - Elena Chad
- AMRI, 1001 Main Street, Buffalo, NY 14203, USA
| | | | | | | | | | - Brent Wiens
- AMRI, 1001 Main Street, Buffalo, NY 14203, USA
| | | | - Guangyu Zhu
- AMRI, 1001 Main Street, Buffalo, NY 14203, USA
| | - Hongwen Du
- Pharmaron Beijing, Co. Ltd., No. 6, TaiHe Road, BDA, Beijing 100176, China
| | - Alan C Rigby
- HiberCell Inc. 619 West 54th Street, New York, NY 10019, USA
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