101
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Franich NR, Basso M, André EA, Ochaba J, Kumar A, Thein S, Fote G, Kachemov M, Lau AL, Yeung SY, Osmand A, Zeitlin SO, Ratan RR, Thompson LM, Steffan JS. Striatal Mutant Huntingtin Protein Levels Decline with Age in Homozygous Huntington's Disease Knock-In Mouse Models. J Huntingtons Dis 2019; 7:137-150. [PMID: 29843246 PMCID: PMC6002862 DOI: 10.3233/jhd-170274] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background: Huntington’s disease (HD) is a progressive neurodegenerative disorder associated with aging, caused by an expanded polyglutamine (polyQ) repeat within the Huntingtin (HTT) protein. In HD, degeneration of the striatum and atrophy of the cortex are observed while cerebellum is less affected. Objective: To test the hypothesis that HTT protein levels decline with age, which together with HTT mutation could influence disease progression. Methods: Using whole brain cell lysates, a unique method of SDS-PAGE and western analysis was used to quantitate HTT protein, which resolves as a monomer and as a high molecular weight species that is modulated by the presence of transglutaminase 2. HTT levels were measured in striatum, cortex and cerebellum in congenic homozygous Q140 and HdhQ150 knock-in mice and WT littermate controls. Results: Mutant HTT in both homozygous knock-in HD mouse models and WT HTT in control striatal and cortical tissues significantly declined in a progressive manner over time. Levels of mutant HTT in HD cerebellum remained high during aging. Conclusions: A general decline in mutant HTT levels in striatum and cortex is observed that may contribute to disease progression in homozygous knock-in HD mouse models through reduction of HTT function. In cerebellum, sustained levels of mutant HTT with aging may be protective to this tissue which is less overtly affected in HD.
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Affiliation(s)
- Nicholas R Franich
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Manuela Basso
- Centre for Integrative Biology, University of Trento, Trento, Italy
| | - Emily A André
- Department of Neuroscience, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Joseph Ochaba
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA
| | - Amit Kumar
- Burke Medical Research Institute, White Plains, NY, USA.,Brain and Mind Research Institute, Weill Medical College of Cornell University, New York, NY, USA.,Department of Neurology, Weill Medical College of Cornell University, New York, NY, USA
| | - Soe Thein
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Gianna Fote
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Marketta Kachemov
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA
| | - Alice L Lau
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Sylvia Y Yeung
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Alexander Osmand
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, USA
| | - Scott O Zeitlin
- Department of Neuroscience, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Rajiv R Ratan
- Burke Medical Research Institute, White Plains, NY, USA.,Brain and Mind Research Institute, Weill Medical College of Cornell University, New York, NY, USA.,Department of Neurology, Weill Medical College of Cornell University, New York, NY, USA
| | - Leslie M Thompson
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA.,Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA.,Institute of Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
| | - Joan S Steffan
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA.,Institute of Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
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102
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Han S, Gao H, Chen S, Wang Q, Li X, Du LJ, Li J, Luo YY, Li JX, Zhao LC, Feng J, Yang S. Procyanidin A1 Alleviates Inflammatory Response induced by LPS through NF-κB, MAPK, and Nrf2/HO-1 Pathways in RAW264.7 cells. Sci Rep 2019; 9:15087. [PMID: 31636354 PMCID: PMC6803657 DOI: 10.1038/s41598-019-51614-x] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/03/2019] [Indexed: 12/16/2022] Open
Abstract
Inflammation is a complex physiological process that poses a serious threat to people’s health. However, the potential molecular mechanisms of inflammation are still not clear. Moreover, there is lack of effective anti-inflammatory drugs that meet the clinical requirement. Procyanidin A1 (PCA1) is a monomer component isolated from Procyanidin and shows various pharmacological activities. This study further demonstrated the regulatory role of PCA1 on lipopolysaccharide (LPS)-stimulated inflammatory response and oxidative stress in RAW264.7 cells. Our data showed that PCA1 dramatically attenuated the production of pro-inflammatory cytokines such as NO, iNOS, IL-6, and TNF-α in RAW264.7 cells administrated with LPS. PCA1 blocked IκB-α degradation, inhibited IKKα/β and IκBα phosphorylation, and suppressed nuclear translocation of p65 in RAW264.7 cells induced by LPS. PCA1 also suppressed the phosphorylation of JNK1/2, p38, and ERK1/2 in LPS-stimulated RAW264.7 cells. In addition, PCA1 increased the expression of HO-1, reduced the expression of Keap1, and promoted Nrf2 into the nuclear in LPS-stimulated RAW264.7 cells. Cellular thermal shift assay indicated that PCA1 bond to TLR4. Meanwhile, PCA1 inhibited the production of intracellular ROS and alleviated the depletion of mitochondrial membrane potential in vitro. Collectively, our data indicated that PCA1 exhibited a significant anti-inflammatory effect, suggesting that it is a potential agent for the treatment of inflammatory diseases.
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Affiliation(s)
- Shan Han
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Hongwei Gao
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Shaoru Chen
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, Ohio, 44272, USA
| | - Qinqin Wang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Xinxing Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Li-Jun Du
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jun Li
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Ying-Ying Luo
- State Key Laboratory of Innovative Drug and Efficient Energy-Saving Pharmaceutical Equipment, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
| | - Jun-Xiu Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Li-Chun Zhao
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China. .,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China.
| | - Jianfang Feng
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China. .,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China.
| | - Shilin Yang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.,Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
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103
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Anderson KJ, Cormier RT, Scott PM. Role of ion channels in gastrointestinal cancer. World J Gastroenterol 2019; 25:5732-5772. [PMID: 31636470 PMCID: PMC6801186 DOI: 10.3748/wjg.v25.i38.5732] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/26/2019] [Accepted: 09/27/2019] [Indexed: 02/06/2023] Open
Abstract
In their seminal papers Hanahan and Weinberg described oncogenic processes a normal cell undergoes to be transformed into a cancer cell. The functions of ion channels in the gastrointestinal (GI) tract influence a variety of cellular processes, many of which overlap with these hallmarks of cancer. In this review we focus on the roles of the calcium (Ca2+), sodium (Na+), potassium (K+), chloride (Cl-) and zinc (Zn2+) transporters in GI cancer, with a special emphasis on the roles of the KCNQ1 K+ channel and CFTR Cl- channel in colorectal cancer (CRC). Ca2+ is a ubiquitous second messenger, serving as a signaling molecule for a variety of cellular processes such as control of the cell cycle, apoptosis, and migration. Various members of the TRP superfamily, including TRPM8, TRPM7, TRPM6 and TRPM2, have been implicated in GI cancers, especially through overexpression in pancreatic adenocarcinomas and down-regulation in colon cancer. Voltage-gated sodium channels (VGSCs) are classically associated with the initiation and conduction of action potentials in electrically excitable cells such as neurons and muscle cells. The VGSC NaV1.5 is abundantly expressed in human colorectal CRC cell lines as well as being highly expressed in primary CRC samples. Studies have demonstrated that conductance through NaV1.5 contributes significantly to CRC cell invasiveness and cancer progression. Zn2+ transporters of the ZIP/SLC39A and ZnT/SLC30A families are dysregulated in all major GI organ cancers, in particular, ZIP4 up-regulation in pancreatic cancer (PC). More than 70 K+ channel genes, clustered in four families, are found expressed in the GI tract, where they regulate a range of cellular processes, including gastrin secretion in the stomach and anion secretion and fluid balance in the intestinal tract. Several distinct types of K+ channels are found dysregulated in the GI tract. Notable are hERG1 upregulation in PC, gastric cancer (GC) and CRC, leading to enhanced cancer angiogenesis and invasion, and KCNQ1 down-regulation in CRC, where KCNQ1 expression is associated with enhanced disease-free survival in stage II, III, and IV disease. Cl- channels are critical for a range of cellular and tissue processes in the GI tract, especially fluid balance in the colon. Most notable is CFTR, whose deficiency leads to mucus blockage, microbial dysbiosis and inflammation in the intestinal tract. CFTR is a tumor suppressor in several GI cancers. Cystic fibrosis patients are at a significant risk for CRC and low levels of CFTR expression are associated with poor overall disease-free survival in sporadic CRC. Two other classes of chloride channels that are dysregulated in GI cancers are the chloride intracellular channels (CLIC1, 3 & 4) and the chloride channel accessory proteins (CLCA1,2,4). CLIC1 & 4 are upregulated in PC, GC, gallbladder cancer, and CRC, while the CLCA proteins have been reported to be down-regulated in CRC. In summary, it is clear, from the diverse influences of ion channels, that their aberrant expression and/or activity can contribute to malignant transformation and tumor progression. Further, because ion channels are often localized to the plasma membrane and subject to multiple layers of regulation, they represent promising clinical targets for therapeutic intervention including the repurposing of current drugs.
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Affiliation(s)
- Kyle J Anderson
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, United States
| | - Robert T Cormier
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, United States
| | - Patricia M Scott
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, United States
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104
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Targeted delivery of antibiotics to the infected pulmonary tissues using ROS-responsive nanoparticles. J Nanobiotechnology 2019; 17:103. [PMID: 31581948 PMCID: PMC6777033 DOI: 10.1186/s12951-019-0537-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/24/2019] [Indexed: 01/07/2023] Open
Abstract
Background Immunocompromised individuals and those with lung dysfunction readily acquire pulmonary bacterial infections, which may cause serious diseases and carry a heavy economic burden. Maintaining adequate antibiotic concentrations in the infected tissues is necessary to eradicate resident bacteria. To specifically deliver therapeutics to the infected pulmonary tissues and enable controlled release of payloads at the infection site, a ROS-responsive material, i.e. 4-(hydroxymethyl) phenylboronic acid pinacol ester-modified α-cyclodextrin (Oxi-αCD), was employed to encapsulate moxifloxacin (MXF), generating ROS-responsive MXF-containing nanoparticles (MXF/Oxi-αCD NPs). Results MXF/Oxi-αCD NPs were coated with DSPE-PEG and DSPE-PEG-folic acid, facilitating penetration of the sputum secreted by the infected lung and enabling the active targeting of macrophages in the inflammatory tissues. In vitro drug release experiments indicated that MXF release from Oxi-αCD NPs was accelerated in the presence of 0.5 mM H2O2. In vitro assay with Pseudomonas aeruginosa demonstrated that MXF/Oxi-αCD NPs exhibited higher antibacterial activity than MXF. In vitro cellular study also indicated that folic acid-modified MXF/Oxi-αCD NPs could be effectively internalized by bacteria-infected macrophages, thereby significantly eradicating resident bacteria in macrophages compared to non-targeted MXF/Oxi-αCD NPs. In a mouse model of pulmonary P. aeruginosa infection, folic acid-modified MXF/Oxi-αCD NPs showed better antibacterial efficacy than MXF and non-targeted MXF/Oxi-αCD NPs. Meanwhile, the survival time of mice was prolonged by treatment with targeting MXF/Oxi-αCD NPs. Conclusions Our work provides a strategy to overcome the mucus barrier, control drug release, and improve the targeting capability of NPs for the treatment of pulmonary bacterial infections.
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105
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D'Eletto M, Rossin F, Fedorova O, Farrace MG, Piacentini M. Transglutaminase type 2 in the regulation of proteostasis. Biol Chem 2019; 400:125-140. [PMID: 29908126 DOI: 10.1515/hsz-2018-0217] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 05/15/2018] [Indexed: 12/21/2022]
Abstract
The maintenance of protein homeostasis (proteostasis) is a fundamental aspect of cell physiology that is essential for the survival of organisms under a variety of environmental and/or intracellular stress conditions. Acute and/or persistent stress exceeding the capacity of the intracellular homeostatic systems results in protein aggregation and/or damaged organelles that leads to pathological cellular states often resulting in cell death. These events are continuously suppressed by a complex macromolecular machinery that uses different intracellular pathways to maintain the proteome integrity in the various subcellular compartments ensuring a healthy cellular life span. Recent findings have highlighted the role of the multifunctional enzyme type 2 transglutaminase (TG2) as a key player in the regulation of intracellular pathways, such as autophagy/mitophagy, exosomes formation and chaperones function, which form the basis of proteostasis regulation under conditions of cellular stress. Here, we review the role of TG2 in these stress response pathways and how its various enzymatic activities might contributes to the proteostasis control.
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Affiliation(s)
- Manuela D'Eletto
- Department of Biology, University of Rome 'Tor Vergata', Via della Ricerca Scientifica, I-00133 Rome, Italy
| | - Federica Rossin
- Department of Biology, University of Rome 'Tor Vergata', Via della Ricerca Scientifica, I-00133 Rome, Italy
| | - Olga Fedorova
- Institute of Cytology, 194064 Saint-Petersburg, Russia
| | - Maria Grazia Farrace
- Department of Biology, University of Rome 'Tor Vergata', Via della Ricerca Scientifica, I-00133 Rome, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome 'Tor Vergata', Via della Ricerca Scientifica, I-00133 Rome, Italy.,National Institute for Infectious Diseases I.R.C.C.S. 'Lazzaro Spallanzani', I-00149 Rome, Italy
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106
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Anisimov S, Takahashi M, Kakihana T, Katsuragi Y, Kitaura H, Zhang L, Kakita A, Fujii M. G3BP1 inhibits ubiquitinated protein aggregations induced by p62 and USP10. Sci Rep 2019; 9:12896. [PMID: 31501480 PMCID: PMC6733845 DOI: 10.1038/s41598-019-46237-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 06/25/2019] [Indexed: 12/15/2022] Open
Abstract
The aberrant accumulation of ubiquitinated protein aggregates in cells plays a critical role in the pathogenesis of several degenerative diseases, including Parkinson disease (PD) and cystic fibrosis (CF). In this study, we found that Ras GTPase-activating protein-binding protein 1 (G3BP1) inhibits ubiquitinated protein aggregations induced by p62 and USP10 in cultured cells. p62 is a ubiquitin receptor, and p62 and its binding partner USP10 have been shown to augment ubiquitinated protein aggregation. G3BP1 interacted with p62 and USP10 and inhibited p62/USP10-induced protein aggregation. The G3BP1 inhibition of protein aggregations targeted two aggregation-prone proteins, α-synuclein and CFTR-ΔF508, which are causative factors of PD and CF, respectively. G3BP1 depletion increased the amounts of ubiquitinated α-synuclein and CFTR-ΔF508 protein. A proteasome reporter indicated that G3BP1 depletion inhibits the proteasome activity. We herein present evidence that G3BP1, p62 and USP10 together control ubiquitinated protein toxicity by controlling both ubiquitination and aggregation. Taken together, these results suggest that G3BP1, p62 and USP10 could be therapeutic targets for ubiquitinated protein aggregation disorders, including PD and CF.
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Affiliation(s)
- Sergei Anisimov
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan
| | - Masahiko Takahashi
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan
| | - Taichi Kakihana
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan
| | - Yoshinori Katsuragi
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan
| | - Hiroki Kitaura
- Department of Pathology, Brain Research Institute, University of Niigata, Niigata, 951-8585, Japan
| | - Lu Zhang
- Department of Pathology, Brain Research Institute, University of Niigata, Niigata, 951-8585, Japan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research Institute, University of Niigata, Niigata, 951-8585, Japan
| | - Masahiro Fujii
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8510, Japan.
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107
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Docosahexaenoic acid inhibits TNFα-induced ICAM-1 expression by activating PPARα and autophagy in human endothelial cells. Food Chem Toxicol 2019; 134:110811. [PMID: 31499122 DOI: 10.1016/j.fct.2019.110811] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/17/2019] [Accepted: 09/06/2019] [Indexed: 12/31/2022]
Abstract
Inflammation plays a key role in the development of cardiovascular disease (CVD), and docosahexaenoic acid (DHA) is recognized to fight against CVD. PPARα belongs to the nuclear hormone receptor superfamily and can interfere with inflammatory processes. Autophagy can degrade inflammasome proteins and counteract inflammation. Overexpression of intercellular adhesion molecule (ICAM) 1 in endothelial cells contributes to monocyte migration into the vascular intima. Here we investigated the mechanisms by which DHA inhibits TNFα-induced ICAM-1 expression in EA. hy926 endothelial cells. DHA markedly activated PPARα and suppressed TNFα-induced ICAM-1 expression, ICAM-1 promoter activity, p65 nuclear translocation, NFκB and DNA binding activity, and THP-1 cell adhesion. PPARα knockdown abolished the ability of DHA to inhibit TNFα-induced ICAM-1 expression and THP-1 cell adhesion. The PPARα antagonist GW6471 reversed the inhibitory effect of DHA on TNFα-induced ICAM-1 expression, p65 nuclear translocation, NFκB and DNA binding activity, and THP-1 cell adhesion. DHA significantly activated autophagy as evidenced by the formation of autophagosomes and increased LC3II protein expression. By contrast, wortmannin, which inhibits autophagy, abrogated DHA-induced autophagy and the inhibition of TNFα-induced ICAM-1 protein expression by DHA. Our results suggest that DHA likely inhibits TNFα-induced ICAM-1 expression by activating PPARα and autophagy.
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108
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Miah KM, Hyde SC, Gill DR. Emerging gene therapies for cystic fibrosis. Expert Rev Respir Med 2019; 13:709-725. [PMID: 31215818 DOI: 10.1080/17476348.2019.1634547] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/18/2019] [Indexed: 01/06/2023]
Abstract
Introduction: Cystic fibrosis (CF) remains a life-threatening genetic disease, with few clinically effective treatment options. Gene therapy and gene editing strategies offer the potential for a one-time CF cure, irrespective of the CFTR mutation class. Areas covered: We review emerging gene therapies and gene delivery strategies for the treatment of CF particularly viral and non-viral approaches with potential to treat CF. Expert opinion: It was initially anticipated that the challenge of developing a gene therapy for CF lung disease would be met relatively easily. Following early proof-of-concept clinical studies, CF gene therapy has entered a new era with innovative vector designs, approaches to subvert the humoral immune system and increase gene delivery and gene correction efficiencies. Developments include integrating adenoviral vectors, rapamycin-loaded nanoparticles, and lung-tropic lentiviral vectors. The characterization of novel cell types in the lung epithelium, including pulmonary ionocytes, may also encourage cell type-specific targeting for CF correction. We anticipate preclinical studies to further validate these strategies, which should pave the way for clinical trials. We also expect gene editing efficiencies to improve to clinically translatable levels, given advancements in viral and non-viral vectors. Overall, gene delivery technologies look more convincing in producing an effective CF gene therapy.
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Affiliation(s)
- Kamran M Miah
- a Gene Medicine Group, Nuffield Division of Clinical Laboratory Science, Radcliffe Department of Medicine, University of Oxford , Oxford , UK
| | - Stephen C Hyde
- a Gene Medicine Group, Nuffield Division of Clinical Laboratory Science, Radcliffe Department of Medicine, University of Oxford , Oxford , UK
| | - Deborah R Gill
- a Gene Medicine Group, Nuffield Division of Clinical Laboratory Science, Radcliffe Department of Medicine, University of Oxford , Oxford , UK
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109
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Lin H, Li S, Shu HB. The Membrane-Associated MARCH E3 Ligase Family: Emerging Roles in Immune Regulation. Front Immunol 2019; 10:1751. [PMID: 31404274 PMCID: PMC6669941 DOI: 10.3389/fimmu.2019.01751] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/10/2019] [Indexed: 01/13/2023] Open
Abstract
The membrane-associated RING-CH-type finger (MARCH) proteins of E3 ubiquitin ligases have emerged as critical regulators of immune responses. MARCH proteins target immune receptors, viral proteins as well as components in innate immune response for polyubiquitination and degradations via distinct routes. This review summarizes the current progress about MARCH proteins and their regulation on immune responses.
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Affiliation(s)
- Heng Lin
- Department of Infectious Diseases, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Shu Li
- Department of Infectious Diseases, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Hong-Bing Shu
- Department of Infectious Diseases, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
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110
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Botulinum toxin type A interrupts autophagic flux of submandibular gland. Biosci Rep 2019; 39:BSR20190035. [PMID: 31273059 PMCID: PMC6646452 DOI: 10.1042/bsr20190035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 06/21/2019] [Accepted: 07/02/2019] [Indexed: 12/22/2022] Open
Abstract
Botulinum toxin type A (BTXA) is a neurotoxic protein produced by Clostridium botulinum. Our previous studies demonstrated that BTXA inhibits the secretory function of submandibular gland (SMG) and changes its structure. Several studies reported that SMG damage and repair often occur with autophagy in the rat. However, no studies reported whether secretory inhibition and structural changes of SMG after BTXA injection is related with autophagy. The present study was carried out to explore the association between BTXA injection and autophagy in rat SMG. Western blotting and immunofluorescence were used to detect the expression and distribution of light chain 3 (LC3) in rat SMG. MTS was used to detect the toxicity of BTXA on rat SMG-C6 cell line. GFP-LC3 and Lyso-Tracker Red fluorescence probe were used to assess the levels of autophagosomes and lysosome fusion and the effect of BTXA on autophagic flux in SMG-C6. Western blotting and immunofluorescence results showed that BTXA temporarily increased autophagosomes in rat SMG. MTS results showed that BTXA exerted its toxicity on SMG-C6 in a dose-dependent manner. BTXA increased the number of autophagosomes in SMG-C6; however, most autophagosomes did not colocalize with lysosome. Therefore, we presume that BTXA can change autophagic flux of SMG cells, the mechanism of which might relate with BTXA’s disturbing autophagosome-lysosome fusion.
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111
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Bioactive Thymosin Alpha-1 Does Not Influence F508del-CFTR Maturation and Activity. Sci Rep 2019; 9:10310. [PMID: 31311979 PMCID: PMC6635361 DOI: 10.1038/s41598-019-46639-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/03/2019] [Indexed: 12/11/2022] Open
Abstract
Deletion of phenylalanine 508 (F508del) in the cystic fibrosis transmembrane conductance regulator (CFTR) anion channel is the most frequent mutation causing cystic fibrosis (CF). F508del-CFTR is misfolded and prematurely degraded. Recently thymosin a-1 (Tα-1) was proposed as a single molecule-based therapy for CF, improving both F508del-CFTR maturation and function by restoring defective autophagy. However, three independent laboratories failed to reproduce these results. Lack of reproducibility has been ascribed by the authors of the original paper to the use of DMSO and to improper handling. Here, we address these potential issues by demonstrating that Tα-1 changes induced by DMSO are fully reversible and that Tα-1 peptides prepared from different stock solutions have equivalent biological activity. Considering the negative results here reported, six independent laboratories failed to demonstrate F508del-CFTR correction by Tα-1. This study also calls into question the autophagy modulator cysteamine, since no rescue of mutant CFTR function was detected following treatment with cysteamine, while deleterious effects were observed when bronchial epithelia were exposed to cysteamine plus the antioxidant food supplement EGCG. Although these studies do not exclude the possibility of beneficial immunomodulatory effects of thymosin α-1, they do not support its utility as a corrector of F508del-CFTR.
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112
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Rosenjack J, Hodges CA, Darrah RJ, Kelley TJ. HDAC6 depletion improves cystic fibrosis mouse airway responses to bacterial challenge. Sci Rep 2019; 9:10282. [PMID: 31311988 PMCID: PMC6635416 DOI: 10.1038/s41598-019-46555-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 06/29/2019] [Indexed: 02/07/2023] Open
Abstract
The hypothesis of this study was that Hdac6 depletion would restore cystic fibrosis (CF) responses to bacterial challenge to more wild type profiles using a CF mouse model. CF mice harboring the F508del Cftr mutation respond to bacterial challenge with 25,000 CFU Pseudomonas aeruginosa embedded into agarose beads to slow clearance. CF mice respond significantly more aggressively to this challenge compared to WT mice with respect to bacterial clearance, weight loss, neutrophil recruitment, and MIP-2 production. Depletion of Hdac6 expression in the CF mice (CF/Hdac6) significantly improves these responses to more WT levels. Weight loss in response to infection is most severe in CF mice and significantly attenuated in CF/Hdac6 mice. Bacterial levels are reduced at a faster rate in CF/Hdac6 mice compared to CF mice where infection persists. Percent neutrophils in lung lavage fluid post-infection are significantly higher in CF mice, but returned to WT levels with CF/Hdac6 mice. Similarly, CF Mip-2 levels are restored to WT levels in the absence of Hdac6 expression. These data demonstrate that Hdac6 depletion restores CF responses to bacterial challenge to WT-like profiles and offer a potential therapeutic avenue for addressing inflammation and infection in CF airways independently of Cftr correction.
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Affiliation(s)
- Julie Rosenjack
- Departments of Pediatrics, Case Western Reserve University Cleveland, Ohio, USA
| | - Craig A Hodges
- Departments of Pediatrics, Case Western Reserve University Cleveland, Ohio, USA
| | - Rebecca J Darrah
- Departments of Pediatrics, Case Western Reserve University Cleveland, Ohio, USA
| | - Thomas J Kelley
- Departments of Pediatrics, Case Western Reserve University Cleveland, Ohio, USA.
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113
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Maiuri L, Raia V, Piacentini M, Tosco A, Villella VR, Kroemer G. Cystic fibrosis transmembrane conductance regulator (CFTR) and autophagy: hereditary defects in cystic fibrosis versus gluten-mediated inhibition in celiac disease. Oncotarget 2019; 10:4492-4500. [PMID: 31321000 PMCID: PMC6633896 DOI: 10.18632/oncotarget.27037] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 06/05/2019] [Indexed: 12/31/2022] Open
Abstract
Cystic Fibrosis (CF) is the most frequent lethal monogenetic disease affecting humans. CF is characterized by mutations in cystic fibrosis transmembrane conductance regulator (CFTR), a chloride channel whose malfunction triggers the activation of transglutaminase-2 (TGM2), as well as the inactivation of the Beclin-1 (BECN1) complex resulting in disabled autophagy. CFTR inhibition, TGM2 activation and BECN1 sequestration engage in an ‘infernal trio’ that locks the cell in a pro-inflammatory state through anti-homeostatic feedforward loops. Thus, stimulation of CFTR function, TGM2 inhibition and autophagy stimulation can be used to treat CF patients. Several studies indicate that patients with CF have a higher incidence of celiac disease (CD) and that mice bearing genetically determined CFTR defects are particularly sensitive to the enteropathogenic effects of the orally supplied gliadin (a gluten-derived protein). A gluten/gliadin-derived peptide (P31–43) inhibits CFTR in mouse intestinal epithelial cells, causing a local stress response that contributes to the immunopathology of CD. In particular, P31–43-induced CFTR inhibition elicits an epithelial stress response perturbing proteostasis. This event triggers TGM2 activation, BECN1 sequestration and results in molecular crosslinking of CFTR and P31-43 by TGM2. Importantly, stimulation of CFTR function with a pharmacological potentiator (Ivacaftor), which is approved for the treatment of CF, could attenuate the autophagy-inhibition and pro-inflammatory effects of gliadin in preclinical models of CD. Thus, CD shares with CF a common molecular mechanism involving CFTR inhibition that might respond to drugs that intercept the "infernal trio". Here, we highlight how drugs available for CF treatment could be repurposed for the therapy of CD.
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Affiliation(s)
- Luigi Maiuri
- Department of Health Sciences, University of Eastern Piedmont, Novara, Italy.,European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Valeria Raia
- Department of Translational Medical Sciences, Pediatric Unit, Regional Cystic Fibrosis Center, Federico II University Naples, Naples, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.,National Institute for Infectious Diseases, IRCCS 'L. Spallanzani', Rome, Italy
| | - Antonella Tosco
- Department of Translational Medical Sciences, Pediatric Unit, Regional Cystic Fibrosis Center, Federico II University Naples, Naples, Italy
| | - Valeria Rachela Villella
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Guido Kroemer
- Equipe 11 labellisée Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM U1138, Centre de Recherche des Cordeliers, Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.,Department of Women's and Children's Health, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden.,Suzhou Institute for Systems Medicine, Chinese Academy of Sciences, Suzhou, China
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114
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Hanrahan JW, Sato Y, Carlile GW, Jansen G, Young JC, Thomas DY. Cystic Fibrosis: Proteostatic correctors of CFTR trafficking and alternative therapeutic targets. Expert Opin Ther Targets 2019; 23:711-724. [PMID: 31169041 DOI: 10.1080/14728222.2019.1628948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Cystic fibrosis (CF) is the most frequent lethal orphan disease and is caused by mutations in the CFTR gene. The most frequent mutation F508del-CFTR affects multiple organs; infections and subsequent infections and complications in the lung lead to death. Areas covered: This review focuses on new targets and mechanisms that are attracting interest for the development of CF therapies. The F508del-CFTR protein is retained in the endoplasmic reticulum (ER) but has some function if it can traffic to the plasma membrane. Cell-based assays have been used to screen chemical libraries for small molecule correctors that restore its trafficking. Pharmacological chaperones are correctors that bind directly to the F508del-CFTR mutant and promote its folding and trafficking. Other correctors fall into a heterogeneous class of proteostasis modulators that act indirectly by altering cellular homeostasis. Expert opinion: Pharmacological chaperones have so far been the most successful correctors of F508del-CFTR trafficking, but their level of correction means that more than one corrector is required. Proteostasis modulators have low levels of correction but hold promise because some can correct several different CFTR mutations. Identification of their cellular targets and the potential for development may lead to new therapies for CF.
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Affiliation(s)
- John W Hanrahan
- a Department of Physiology , McGill University , Montréal , QC , Canada.,c Research Institute of the McGill University Health Centre , McGill University , Montréal , QC , Canada
| | - Yukiko Sato
- a Department of Physiology , McGill University , Montréal , QC , Canada.,b Cystic Fibrosis Translational Research centre , McGill University , Montréal , QC , Canada
| | - Graeme W Carlile
- b Cystic Fibrosis Translational Research centre , McGill University , Montréal , QC , Canada.,d Department of Biochemistry , McGill University , Montréal , QC , Canada
| | - Gregor Jansen
- d Department of Biochemistry , McGill University , Montréal , QC , Canada
| | - Jason C Young
- b Cystic Fibrosis Translational Research centre , McGill University , Montréal , QC , Canada.,d Department of Biochemistry , McGill University , Montréal , QC , Canada
| | - David Y Thomas
- b Cystic Fibrosis Translational Research centre , McGill University , Montréal , QC , Canada.,d Department of Biochemistry , McGill University , Montréal , QC , Canada.,e Department of Human Genetics , McGill University , Montréal , QC , Canada
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115
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Wang J, Zhao H, Xu F, Zhang P, Zheng Y, Jia N. Human epididymis protein 4 (HE4) protects against cystic pulmonary fibrosis associated-inflammation through inhibition of NF-κB and MAPK singnaling. Genes Genomics 2019; 41:1045-1053. [PMID: 31165362 DOI: 10.1007/s13258-019-00836-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/27/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cystic pulmonary fibrosis (CF) affects mostly the lung of the newborns. Chronic infection and inflammation become the major causes of morbidity and mortality in CF. However, the underlying molecular mechanisms causing CF still remain unclear. METHODS ELISA assay was used to examine the expression of HE4 and pro-inflammatory cytokines in W126VA4 cells supernatant fluid. qRT-PCR was applicable to determine the mRNA level of HE4, α-SMA, collagen 1, MMP2, MMP9 and various interleukins. Immunofluorescent assay was used to test the expression of HE4 in WI-26 VA4 cells. Major elements of MAPK and NF-κB signals pathways were examined by western blot. RESULTS We found higher expression of HE4 in CF patients serum and lung biopsy. Interestingly, HE4 expression was positively correlated with fibrosis markers expression. In addition,HE4 overexpression increased inflammatory cytokines secretion and fibrosis markers expression in WI-26 VA4 cells. And NF-κB pathways were responsible for elevated inflammation. In addition, HE4/MAPK/MMPs signaling cascades destroyed the normal extracellular matrix (ECM) and promoted fibrosis. CONCLUSIONS Overall, we first identified that HE4 promoted CF-associated inflammation. Additionally, NF-κB and MAPK signalings were further validated to be responsible for CF-associated inflammation and ECM destruction. Characterization of lumacaftor/ivacaftor in CF-associated inflammation may provide a novel insight into clinical CF treatment.
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Affiliation(s)
- Jinli Wang
- Department of Pediatrics, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Hongyang Zhao
- Department of Pediatrics, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Fenfen Xu
- Department of Pediatrics, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Piaopiao Zhang
- Graduate School of Taishan Medical University, Tai'an, China
| | - Yuan Zheng
- Department of Pediatrics, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Nan Jia
- Department of Neonatal, The Second Affiliated Hospital of Xi'an Medical College, No. 167, Textile City East Street, Baqiao District, Xi'an, 710038, Shanxi, China.
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116
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Wu Y, Gulbins E, Grassmé H. The function of sphingomyelinases in mycobacterial infections. Biol Chem 2019; 399:1125-1133. [PMID: 29924725 DOI: 10.1515/hsz-2018-0179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/06/2018] [Indexed: 12/21/2022]
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis, is one of the deadliest and most important infectious diseases worldwide. The sphingomyelinase/ceramide system, which has been shown several times to be a crucial factor in the internalization, processing and killing of diverse pathogens, also modulates the pro-inflammatory response and the state of mycobacteria in macrophages. Both acid and neutral sphingomyelinases are important in this activity. However, studies of the role of sphingomyelinases in TB are still at an early stage.
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Affiliation(s)
- Yuqing Wu
- Department of Molecular Biology, University of Duisburg-Essen, Hufelandstrasse 55, D-45122 Essen, Germany
| | - Erich Gulbins
- Department of Molecular Biology, University of Duisburg-Essen, Hufelandstrasse 55, D-45122 Essen, Germany.,Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267, USA
| | - Heike Grassmé
- Department of Molecular Biology, University of Duisburg-Essen, Hufelandstrasse 55, D-45122 Essen, Germany
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117
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Starvation-induced autophagy is up-regulated via ROS-mediated ClC-3 chloride channel activation in the nasopharyngeal carcinoma cell line CNE-2Z. Biochem J 2019; 476:1323-1333. [DOI: 10.1042/bcj20180979] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/13/2019] [Accepted: 04/16/2019] [Indexed: 01/15/2023]
Abstract
Abstract
Nutrient deficiency develops frequently in nasopharyngeal carcinoma cell (CNE-2Z) due to the characteristics of aggregation and uncontrolled proliferation. Therefore, starvation can induce autophagy in these cells. Chloride channel 3 (ClC-3), a member of the chloride channel family, is involved in various biological processes. However, whether ClC-3 plays an important role in starvation-induced autophagy is unclear. In this study, Earle's balanced salt solution (EBSS) was used to induce autophagy in CNE-2Z cells. We found that autophagy and the chloride current induced by EBSS were inhibited by chloride channel blockers. ClC-3 knockdown inhibited the degradation of LC3-II and P62. Furthermore, when reactive oxygen species (ROS) generation was suppressed by antioxidant N-acetyl-l-cysteine (L-NAC) pretreatment, EBSS-induced autophagy was inhibited, and the chloride current was unable to be activated. Nevertheless, ClC-3 knockdown had little effect on ROS levels, indicating that ROS acted upstream of ClC-3 and that both ROS and ClC-3 participated in EBSS-induced autophagy regulation in CNE-2Z.
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118
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Warris A. Immunopathology of Aspergillus Infections in Children With Chronic Granulomatous Disease and Cystic Fibrosis. Pediatr Infect Dis J 2019; 38:e96-e98. [PMID: 30531311 PMCID: PMC6499723 DOI: 10.1097/inf.0000000000002265] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Adilia Warris
- From the MRC Centre for Medical Mycology, Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, United Kingdom
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119
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Corneal autophagy and ocular surface inflammation: A new perspective in dry eye. Exp Eye Res 2019; 184:126-134. [PMID: 31018117 DOI: 10.1016/j.exer.2019.04.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/16/2019] [Accepted: 04/19/2019] [Indexed: 01/18/2023]
Abstract
Dry eye disease (DED), a multifactorial ocular surface disorder affecting millions of individuals worldwide, is characterized by inflammation and damage to the ocular surface. It is unclear whether corneal autophagy participates in ocular surface inflammation observed in DED. To test this involvement, dry eye (DE) was induced in female C57BL/6 mice housed in a controlled environment by subcutaneous injection of scopolamine. Expression of the autophagy-related proteins LC3B and ATG5 and activation of autophagy were detected in the corneas of these mice. Treatment with LYN-1604, an activator of autophagy, alleviated the clinical indications in DE mice, including tear production and corneal fluorescence staining. LYN-1604 also reduced the corneal levels of inflammatory response products, including tumor necrosis factor alpha (TNF-α) and matrix metalloproteinases-3 and -9. By contrast, treatment of DE mice with the autophagy inhibitor 3-MA, exacerbated the clinical indications of DE and increased the levels of inflammatory response products. This is the first study to show that autophagy could regulate the level of ocular surface inflammation, suggesting that agents that regulate autophagy could relieve ocular surface inflammation and treat DED.
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120
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Li X, Ke X, Li Z, Li B. Vaspin prevents myocardial injury in rats model of diabetic cardiomyopathy by enhancing autophagy and inhibiting inflammation. Biochem Biophys Res Commun 2019; 514:1-8. [PMID: 31014675 DOI: 10.1016/j.bbrc.2019.04.110] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 04/14/2019] [Indexed: 12/21/2022]
Abstract
NLRP3 inflammasome activation plays an important role in diabetic cardiomyopathy (DCM). It is known that autophagy is related to the activation of inflammasomes during oxidative stress. Visceral adipose tissue-derived serine protease inhibitor (Vaspin), is an adipocytokine that has been shown to exert a protective effect on autophagic activity, but whether and how Vaspin improves myocardial damage in DCM remain unclear. In this study, we explored the role of Vaspin in DCM using a streptozotocin (STZ)-induced diabetes model. Cardiac function, cardiomyocyte apoptosis, myocardial tissue morphology, and mitochondrial morphology in diabetic rats were improved after eight weeks of Vaspin treatment. Vaspin treatment augmented autophagy activation in diabetic rat hearts. Moreover, the activation of NLRP3 inflammasome was inhibited by Vaspin, followed by a decrease in the cleavage of caspase-1 and maturation of IL-1β and TNF-ɑ. In vitro studies found that the mitochondrial reactive oxygen species (ROS) generation as well as the depolarization of the mitochondrial membrane in H9C2cells induced by high glucose were attenuated by Vaspin. This inhibitory effect of Vaspin on NLRP3 inflammasome activation was due to the protection of autophagy activity and was abolished after the treatment of autophagy inhibitor (3-MA). These results demonstrate that Vaspin alleviates STZ-induced myocardial injury and renders a cardioprotective effect by suppressing NLRP3 inflammasome activation and promoting autophagy.
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Affiliation(s)
- Xuelian Li
- Department of Cardiology, Qingdao Municipal Hospital, Qingdao, Shandong, 266071, China.
| | - Xuan Ke
- Department of Cardiology, Wuhan Third Hospital, Wuhan, Hubei, 430000, China.
| | - Zhiyang Li
- Grade 2016 Class 2, College of Basic Medicine, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
| | - Bingong Li
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China; Department of Cardiology, Qingdao Municipal Hospital, Qingdao, Shandong, 266071, China.
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121
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Liu K, Jin H, Guo Y, Liu Y, Wan Y, Zhao P, Zhou Z, Wang J, Wang M, Zou C, Wu W, Cheng Z, Dai Y. CFTR interacts with Hsp90 and regulates the phosphorylation of AKT and ERK1/2 in colorectal cancer cells. FEBS Open Bio 2019; 9:1119-1127. [PMID: 30985981 PMCID: PMC6551490 DOI: 10.1002/2211-5463.12641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/21/2019] [Accepted: 04/12/2019] [Indexed: 12/21/2022] Open
Abstract
Cystic fibrosis (CF) is caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. CF cells and tissues exhibit various mitochondrial abnormalities. However, the underlying molecular mechanisms remain elusive. Here, we examined the mechanisms through which CFTR regulates Bcl‐2 family proteins, which in turn regulate permeabilization of the mitochondrial outer membrane. Notably, inhibition of CFTR activated Bax and Bad, but inhibited Bcl‐2. Moreover, degradation of phosphorylated extracellular signal‐regulated kinase 1/2 (ERK1/2) and AKT increased significantly in CFTR‐knockdown cells. Dysfunction of CFTR decreased heat‐shock protein 90 (Hsp90) mRNA levels, and CFTR was found to interact with Hsp90. Inhibition of Hsp90 by SNX‐2112 induced the degradation of phosphorylated AKT and ERK1/2 in Caco2 and HRT18 cells. These findings may help provide insights into the physiological role of CFTR in CF‐related diseases.
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Affiliation(s)
- Kaisheng Liu
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China.,Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hongtao Jin
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Yaomin Guo
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Ying Liu
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Yong Wan
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Pan Zhao
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Zhifan Zhou
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Jianhong Wang
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Maolin Wang
- School of Medicine, Health Science Centre, Shenzhen University, Shenzhen, China
| | - Chang Zou
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Weiqing Wu
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Zhiqiang Cheng
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
| | - Yong Dai
- The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China
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122
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Villella VR, Tosco A, Esposito S, Bona G, Raia V, Maiuri L. Mutation-specific therapies and drug repositioning in cystic fibrosis. Minerva Pediatr 2019; 71:287-296. [DOI: 10.23736/s0026-4946.19.05506-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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123
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Protective Effects of Kaempferol on D-Ribose-Induced Mesangial Cell Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7564207. [PMID: 31049137 PMCID: PMC6462328 DOI: 10.1155/2019/7564207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 11/26/2018] [Indexed: 12/30/2022]
Abstract
Recently, it has been found that the level of urinary D-ribose in type 2 diabetes is notably higher than that in age-matched normal control, and D-ribose is more reactive in the glycation than D-glucose and induces oxidative stress. Kaempferol is one of the main bioactive components in Astragalus membranaceus, with numerous physiological actives, such as antioxidant. The present study investigated the protective effects of kaempferol on D-ribose-treated mesangial cells. CCK-8 and LDH assay were used to test cell viability and cell toxicity. Immunofluorescence and flow cytometry were used to detect the AGE formation and ROS accumulation. GSH level was measured to reflect oxidation resistance. Cell apoptosis was evaluated by Hoechst 33258 staining, AO/EB staining, and western blot. Mitochondrial membrane integrity was detected by JC-1 staining, western blot, and RT-PCR. The change of autophagy level was tested by western blot. The results indicated that D-ribose induced not only cell damage and increased AGE formation and ROS accumulation but also GSH depletion. Further studies demonstrated that D-ribose induced mitochondrial depolarization and the activation of caspase-9/3. But kaempferol could partly block these damages. Subsequently, it was confirmed that kaempferol repaired the autophagy disturbance induced by D-ribose, and 3-MA could reverse the protective effect of kaempferol under D-ribose condition. Our study demonstrated that D-ribose induced AGE accumulation and ROS production in mesangial cell and caused mitochondrial apoptosis, but kaempferol could attenuate these changes and its protective effect might be related to the repair of autophagy.
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124
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Maiuri L, Villella VR, Raia V, Kroemer G. The gliadin-CFTR connection: new perspectives for the treatment of celiac disease. Ital J Pediatr 2019; 45:40. [PMID: 30898172 PMCID: PMC6429699 DOI: 10.1186/s13052-019-0627-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 02/27/2019] [Indexed: 12/22/2022] Open
Abstract
Familial loss-of-function mutations of the gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) channel protein cause cystic fibrosis (CF), the most frequent inherited life-threatening disease in the Caucasian population. A recent study indicates that the gluten/gliadin-derived peptide (P31–43) can cause CFTR inhibition in intestinal epithelial cells, thus causing a local stress response that contributes to the immunopathology of celiac disease (CD). Accordingly, an increased prevalence of CD has been observed in several cohorts of CF patients. CD is characterized by a permanent intolerance to gluten/gliadin proteins occurring in a proportion of susceptible individuals who bear the human leukocyte antigen (HLA) DQ2/DQ8. In CD, perturbations of the intestinal environment, together with the activation of the innate immune system by P31–43, are essential for rendering other immunodominant gliadin peptide fully antigenic, thus triggering an adaptive immune response with an autoimmune component. P31–43-induced CFTR inhibition elicits the danger signals that ignite the epithelial stress response and perturb epithelial proteostasis. Importantly, potentiators of CFTR channel gating, such as the FDA-approved drug Ivacaftor, prevent P31–43 driven CFTR inhibition and suppress the gliadin-induced stress response in cells from celiac patients, as well as the immunopathology developing in gliadin-sensitive mice. Thus, CFTR potentiators may represent a novel therapeutic option for celiac patients.
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Affiliation(s)
- Luigi Maiuri
- Department of Health Sciences, University of Eastern Piedmont, Novara, Italy.,European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Valeria R Villella
- Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
| | - Valeria Raia
- Regional Cystic Fibrosis Center, Pediatric Unit, Department of Translational Medical Sciences, Federico II University Naples, Naples, Italy
| | - Guido Kroemer
- Equipe11 labellisée Ligue Nationale contrele Cancer, Centre de Recherche des Cordeliers, Paris, France. .,INSERM U1138, Centre de Recherche des Cordeliers, Paris, France. .,Université Paris Descartes, Paris, France. .,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France. .,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France. .,Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, 17176, Stockholm, Sweden.
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125
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Villella VR, Esposito S, Ferrari E, Monzani R, Tosco A, Rossin F, Castaldo A, Silano M, Marseglia GL, Romani L, Barlev NA, Piacentini M, Raia V, Kroemer G, Maiuri L. Autophagy suppresses the pathogenic immune response to dietary antigens in cystic fibrosis. Cell Death Dis 2019; 10:258. [PMID: 30874543 PMCID: PMC6420598 DOI: 10.1038/s41419-019-1500-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/22/2019] [Accepted: 02/28/2019] [Indexed: 12/30/2022]
Abstract
Under physiological conditions, a finely tuned system of cellular adaptation allows the intestinal mucosa to maintain the gut barrier function while avoiding excessive immune responses to non-self-antigens from dietary origin or from commensal microbes. This homeostatic function is compromised in cystic fibrosis (CF) due to loss-of-function mutations in the CF transmembrane conductance regulator (CFTR). Recently, we reported that mice bearing defective CFTR are abnormally susceptible to a celiac disease-like enteropathy, in thus far that oral challenge with the gluten derivative gliadin elicits an inflammatory response. However, the mechanisms through which CFTR malfunction drives such an exaggerated response to dietary protein remains elusive. Here we demonstrate that the proteostasis regulator/transglutaminase 2 (TGM2) inhibitor cysteamine restores reduced Beclin 1 (BECN1) protein levels in mice bearing cysteamine-rescuable F508del-CFTR mutant, either in homozygosis or in compound heterozygosis with a null allele, but not in knock-out CFTR mice. When cysteamine restored BECN1 expression, autophagy was increased and gliadin-induced inflammation was reduced. The beneficial effects of cysteamine on F508del-CFTR mice were lost when these mice were backcrossed into a Becn1 haploinsufficient/autophagy-deficient background. Conversely, the transfection-enforced expression of BECN1 in human intestinal epithelial Caco-2 cells mitigated the pro-inflammatory cellular stress response elicited by the gliadin-derived P31–43 peptide. In conclusion, our data provide the proof-of-concept that autophagy stimulation may mitigate the intestinal malfunction of CF patients.
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Affiliation(s)
- Valeria R Villella
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Speranza Esposito
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Eleonora Ferrari
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Eastern Piedmont, Novara, 28100, Italy
| | - Romina Monzani
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Eastern Piedmont, Novara, 28100, Italy
| | - Antonella Tosco
- Regional Cystic Fibrosis Center, Pediatric Unit, Department of Translational Medical Sciences, Federico II University Naples, Naples, 80131, Italy
| | - Federica Rossin
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Alice Castaldo
- Regional Cystic Fibrosis Center, Pediatric Unit, Department of Translational Medical Sciences, Federico II University Naples, Naples, 80131, Italy
| | - Marco Silano
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Roma, Italy
| | - Gian Luigi Marseglia
- Dipartimento di Pediatria, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Luigina Romani
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Nikolai A Barlev
- Gene Expression Laboratory, Institute of Citology, Saint-Petersburg, Russia
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Valeria Raia
- Regional Cystic Fibrosis Center, Pediatric Unit, Department of Translational Medical Sciences, Federico II University Naples, Naples, 80131, Italy
| | - Guido Kroemer
- Equipe11 labellisée Ligue Nationale contrele Cancer, Centre de Recherche des Cordeliers, Paris, France. .,INSERM U1138, Centre de Recherche des Cordeliers, Paris, France. .,Université Paris Descartes, Paris, France. .,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France. .,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France. .,Suzhou Institute for Systems Biology, Chinese Academy of Sciences, Suzhou, China. .,Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, 17176, Sweden.
| | - Luigi Maiuri
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Eastern Piedmont, Novara, 28100, Italy
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126
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Zhang S, Wang Y, Xie W, Howe ENW, Busschaert N, Sauvat A, Leduc M, Gomes-da-Silva LC, Chen G, Martins I, Deng X, Maiuri L, Kepp O, Soussi T, Gale PA, Zamzami N, Kroemer G. Squaramide-based synthetic chloride transporters activate TFEB but block autophagic flux. Cell Death Dis 2019; 10:242. [PMID: 30858361 PMCID: PMC6411943 DOI: 10.1038/s41419-019-1474-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 01/08/2019] [Accepted: 02/22/2019] [Indexed: 02/06/2023]
Abstract
Cystic fibrosis is a disease caused by defective function of a chloride channel coupled to a blockade of autophagic flux. It has been proposed to use synthetic chloride transporters as pharmacological agents to compensate insufficient chloride fluxes. Here, we report that such chloride anionophores block autophagic flux in spite of the fact that they activate the pro-autophagic transcription factor EB (TFEB) coupled to the inhibition of the autophagy-suppressive mTORC1 kinase activity. Two synthetic chloride transporters (SQ1 and SQ2) caused a partially TFEB-dependent relocation of the autophagic marker LC3 to the Golgi apparatus. Inhibition of TFEB activation using a calcium chelator or calcineurin inhibitors reduced the formation of LC3 puncta in cells, yet did not affect the cytotoxic action of SQ1 and SQ2 that could be observed after prolonged incubation. In conclusion, the squaramide-based synthetic chloride transporters studied in this work (which can also dissipate pH gradients) are probably not appropriate for the treatment of cystic fibrosis yet might be used for other indications such as cancer.
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Affiliation(s)
- Shaoyi Zhang
- Department of Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Faculty of Medicine, University of Paris Sud-Saclay, Kremlin-Bicêtre, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France
| | - Yan Wang
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France.,Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Wei Xie
- Faculty of Medicine, University of Paris Sud-Saclay, Kremlin-Bicêtre, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France
| | - Ethan N W Howe
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | | | - Allan Sauvat
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France
| | - Marion Leduc
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France
| | - Lígia C Gomes-da-Silva
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France.,Chemistry Department, University of Coimbra, Coimbra, Portugal
| | - Guo Chen
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France
| | - Isabelle Martins
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France
| | - Xiaxing Deng
- Department of Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Luigi Maiuri
- European Institute for Research in Cystic Fibrosis, Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Oliver Kepp
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France
| | - Thierry Soussi
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France.,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Sorbonne Université, UPMC Univ Paris, Paris, France.,Department of Oncology-Pathology, Cancer Center Karolinska (CCK), Karolinska Institutet, Stockholm, Sweden
| | - Philip A Gale
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Naoufal Zamzami
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France. .,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France. .,Université Paris Descartes, Sorbonne Paris Cité, Paris, France. .,Gustave Roussy Comprehensive Cancer Center, Villejuif, France. .,Sorbonne Université, UPMC Univ Paris, Paris, France.
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France. .,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France. .,Université Paris Descartes, Sorbonne Paris Cité, Paris, France. .,Gustave Roussy Comprehensive Cancer Center, Villejuif, France. .,Sorbonne Université, UPMC Univ Paris, Paris, France. .,Pôle de Biologie, Hôpital Européen Georges Pompidou, APsupp-HP, Paris, France. .,Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden.
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127
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Luigi Maiuri: un Grande Uomo - a Great Spirit. Cell Death Dis 2019. [PMCID: PMC6397222 DOI: 10.1038/s41419-019-1466-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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128
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Xu S, Sui S, Zhang X, Pang B, Wan L, Pang D. Modulation of autophagy in human diseases strategies to foster strengths and circumvent weaknesses. Med Res Rev 2019; 39:1953-1999. [PMID: 30820989 DOI: 10.1002/med.21571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/20/2019] [Accepted: 02/05/2019] [Indexed: 12/19/2022]
Abstract
Autophagy is central to the maintenance of intracellular homeostasis across species. Accordingly, autophagy disorders are linked to a variety of diseases from the embryonic stage until death, and the role of autophagy as a therapeutic target has been widely recognized. However, autophagy-associated therapy for human diseases is still in its infancy and is supported by limited evidence. In this review, we summarize the landscape of autophagy-associated diseases and current autophagy modulators. Furthermore, we investigate the existing autophagy-associated clinical trials, analyze the obstacles that limit their progress, offer tactics that may allow barriers to be overcome along the way and then discuss the therapeutic potential of autophagy modulators in clinical applications.
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Affiliation(s)
- Shouping Xu
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Shiyao Sui
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Xianyu Zhang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Boran Pang
- Department of Surgery, Rui Jin Hospital, Shanghai Key Laboratory of Gastric Neoplasm, Shanghai Institute of Digestive Surgery, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Wan
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Da Pang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
- Heilongjiang Academy of Medical Sciences, Harbin, Heilongjcontrary, induction of autophagy elongiang, China
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129
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Villella VR, Tosco A, Esposito S, Ferrari E, Bona G, Kroemer G, Raia V, Maiuri L. Personalization of therapies in rare diseases: a translational approach for the treatment of cystic fibrosis. Minerva Pediatr 2019; 71:362-370. [PMID: 30761822 DOI: 10.23736/s0026-4946.19.05511-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
High variability in the response rates to treatments can make the interpretation of data from clinical trials very difficult, particularly in rare genetic diseases in which the enrolment of thousands of patients is problematic. Personalized medicine largely depends on the establishment of appropriate early detectors of drug efficacy that may guide the administration (or discontinuation) of specific treatments. Such biomarkers should be capable of predicting the therapeutic response of individual patients and of monitoring early benefits of candidate drugs before late clinical benefits become evident. The identification of these biomarkers implies a rigorous stepwise process of translation from preclinical evaluation in cultured cells, suitable animal models or patient-derived freshly isolated cells to clinical application. In this review, we will discuss how a process of research translation can lead to the implementation of functional and mechanistic disease-relevant biomarkers. Moreover, we will address how preclinical data can be translated into the clinic in a personalized medical approach that can provide the right drug to the right patient within the right timeframe.
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Affiliation(s)
- Valeria R Villella
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Antonella Tosco
- Regional Cystic Fibrosis Center, Unit of Pediatrics, Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Speranza Esposito
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Eleonora Ferrari
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
| | - Gianni Bona
- Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
| | - Guido Kroemer
- Equipe11 Labellisée Ligue Nationale contre le Cancer, Cordeliers Research Center, Paris, France.,INSERM U1138, Cordeliers Research Center, Paris, France.,Paris Descartes University, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Institute, Villejuif, France.,Section of Biology, Georges Pompidou European Hospital, Assistance Publique, Hôpitaux de Paris (AP-HP), Paris, France.,Department of Women's and Children's Health, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Valeria Raia
- Regional Cystic Fibrosis Center, Unit of Pediatrics, Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Luigi Maiuri
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy - .,Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
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130
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Bezzerri V, Piacenza F, Caporelli N, Malavolta M, Provinciali M, Cipolli M. Is cellular senescence involved in cystic fibrosis? Respir Res 2019; 20:32. [PMID: 30764828 PMCID: PMC6376730 DOI: 10.1186/s12931-019-0993-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/31/2019] [Indexed: 02/06/2023] Open
Abstract
Pulmonary disease is the main cause of the morbidity and mortality of patients affected by cystic fibrosis (CF). The lung pathology is dominated by excessive recruitment of neutrophils followed by an exaggerated inflammatory process that has also been reported to occur in the absence of apparent pathogenic infections. Airway surface dehydration and mucus accumulation are the driving forces of this process. The continuous release of reactive oxygen species and proteases by neutrophils contributes to tissue damage, which eventually leads to respiratory insufficiency. CF has been considered a paediatric problem for several decades. Nevertheless, during the last 40 years, therapeutic options for CF have been greatly improved, turning CF into a chronic disease and extending the life expectancy of patients. Unfortunately, chronic inflammatory processes, which are characterized by a substantial release of cytokines and chemokines, along with ROS and proteases, can accelerate cellular senescence, leading to further complications in adulthood. The alterations and mechanisms downstream of CFTR functional defects that can stimulate cellular senescence remain unclear. However, while there are correlative data suggesting that cellular senescence may be implicated in CF, a causal or consequential relationship between cellular senescence and CF is still far from being established. Senescence can be both beneficial and detrimental. Senescence may suppress bacterial infections and cooperate with tissue repair. Additionally, it may act as an effective anticancer mechanism. However, it may also promote a pro-inflammatory environment, thereby damaging tissues and leading to chronic age-related diseases. In this review, we present the most current knowledge on cellular senescence and contextualize its possible involvement in CF.
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Affiliation(s)
- Valentino Bezzerri
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Ospedali Riuniti, 60121, Ancona, Italy
| | - Francesco Piacenza
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, 60121, Ancona, Italy
| | - Nicole Caporelli
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Ospedali Riuniti, 60121, Ancona, Italy
| | - Marco Malavolta
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, 60121, Ancona, Italy
| | - Mauro Provinciali
- Advanced Technology Center for Aging Research, Scientific Technological Area, IRCCS INRCA, 60121, Ancona, Italy
| | - Marco Cipolli
- Cystic Fibrosis Center, Azienda Ospedaliera Universitaria Ospedali Riuniti, 60121, Ancona, Italy.
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131
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Maiuri L, Villella VR, Piacentini M, Raia V, Kroemer G. Defective proteostasis in celiac disease as a new therapeutic target. Cell Death Dis 2019; 10:114. [PMID: 30737369 PMCID: PMC6368542 DOI: 10.1038/s41419-019-1392-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/19/2019] [Accepted: 01/22/2019] [Indexed: 12/14/2022]
Abstract
Cystic fibrosis (CF) is a disease caused by loss-of-function mutations affecting the CF transmembrane conductance regulator (CFTR), a chloride channel. Recent evidence indicates that CFTR is inhibited by a gluten/gliadin-derived peptide (P31-43), causing an acquired state of CFTR inhibition within the gut that contributes to the pathogenesis of celiac disease (CD). Of note, CFTR inhibition does not only cause intra- and extracellular ion imbalances but also affects proteostasis by activating transglutaminase-2 (TGM2) and by disabling autophagy. These three phenomena (CFTR inhibition, TGM2 activation, and autophagy impairment) engage in multiple self-amplifying circuitries, thus forming an "infernal trio". The trio hinders enterocytes from returning to homeostasis and instead locks them in an irreversible pro-inflammatory state that ultimately facilitates T lymphocyte-mediated immune responses against another gluten/gliadin-derived peptide (P57-68), which,upon deamidation by activated TGM2, becomes fully antigenic. Hence, the pathogenic protein gliadin exemplifies a food constituent the exceptional immunogenicity of which arises from a combination of antigenicity (conferred by deaminated P57-68) and adjuvanticity (conferred by P31-43). CF can be treated by agents targeting the "infernal trio" including CFTR potentiators, TGM2 inhibitors, and autophagy enhancers. We speculate that such agents may also be used for CD therapy and indeed could constitute close-to-etiological treatments of this enteropathy.
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Affiliation(s)
- Luigi Maiuri
- Department of Health Sciences, University of Eastern Piedmont, Novara, Italy. .,European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.
| | - Valeria R Villella
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.,National Institute for Infectious Diseases IRCCS 'L. Spallanzani', Rome, Italy
| | - Valeria Raia
- Department of Translational Medical Sciences, Pediatric Unit, Regional Cystic Fibrosis Center, Federico II University Naples, Naples, Italy
| | - Guido Kroemer
- Equipe11 labellisée Ligue Nationale contrele Cancer, Centre de Recherche des Cordeliers, Paris, France. .,INSERM U1138, Centre de Recherche des Cordeliers, Paris, France. .,Université Paris Descartes, Paris, France. .,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France. .,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France. .,Department of Women's and Children's Health, Karolinska Institute, Karolinska University Hospital, Stockholm, 17176, Sweden.
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132
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Faraj J, Bodas M, Pehote G, Swanson D, Sharma A, Vij N. Novel cystamine-core dendrimer-formulation rescues ΔF508-CFTR and inhibits Pseudomonas aeruginosa infection by augmenting autophagy. Expert Opin Drug Deliv 2019; 16:177-186. [PMID: 30732491 DOI: 10.1080/17425247.2019.1575807] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Cystic fibrosis (CF) is challenged with pathophysiological barriers for effective airway drug-delivery. Hence, we standardized the therapeutic efficacy of the novel dendrimer-based autophagy-inducing anti-oxidant drug, cysteamine. RESEARCH DESIGN AND METHODS Human primary-CF epithelial-cells, CFBE41o-cells were used to standardize the efficacy of the dendrimer-cystamine in correcting impaired-autophagy, rescuing ΔF508-CFTR and Pseudomonas-aeruginosa (Pa) infection. RESULTS We first designed a novel cystamine-core dendrimer formulation (G4-CYS) that significantly increases membrane-ΔF508CFTR expression in CFBE41o-cells (p < 0.05) by forming its reduced-form cysteamine, in vivo. Additionally, G4-CYS treatment corrects ΔF508-CFTR-mediated impaired-autophagy as observed by a significant decrease (p < 0.05) in Ub-LC3-positive aggresome-bodies. Next, we verified that in non-permeabilized CFBE41o-cells, G4-CYS significantly (p < 0.05) induces ΔF508-CFTR's forward-trafficking to the plasma membrane. Furthermore, cysteamine's known antibacterial and anti-biofilm properties against Pa were enhanced as our findings demonstrate that both G4-CYS and its control DAB-core dendrimer, G4-DAB, exhibited significant (p < 0.05) bactericidal-activity against Pa. We also found that both G4-CYS and G4-DAB exhibit marked mucolytic-activity against porcine-mucus (p < 0.05). Finally, we demonstrate that G4-CYS not only corrects the autophagy-impairment by rescuing ΔF508-CFTR in CFBE41o-cells but also corrects the intrinsic phagocytosis defect (p < 0.05). CONCLUSIONS Overall, our data demonstrates the efficacy of novel cystamine-dendrimer formulation in rescuing ΔF508-CFTR to the plasma membrane and inhibiting Pa bacterial-infection by augmenting autophagy.
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Affiliation(s)
- Janine Faraj
- a College of Medicine , Central Michigan University , Mt Pleasant , MI , USA
| | - Manish Bodas
- a College of Medicine , Central Michigan University , Mt Pleasant , MI , USA.,b Department of Pediatrics and Pulmonary Medicine , The Johns Hopkins University School of Medicine , Baltimore , MD , USA.,c Department of Medicine , University of Oklahoma , Oklahoma City , OK , USA
| | - Garrett Pehote
- a College of Medicine , Central Michigan University , Mt Pleasant , MI , USA
| | - Doug Swanson
- d Department of Chemistry and Biochemistry , Central Michigan University , Mount Pleasant , MI , USA
| | - Ajit Sharma
- d Department of Chemistry and Biochemistry , Central Michigan University , Mount Pleasant , MI , USA
| | - Neeraj Vij
- a College of Medicine , Central Michigan University , Mt Pleasant , MI , USA.,b Department of Pediatrics and Pulmonary Medicine , The Johns Hopkins University School of Medicine , Baltimore , MD , USA.,e 4Dx Limited , Los Angeles , CA , USA.,f VIJ Biotech LLC , Baltimore , MD , USA
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133
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Methylomic correlates of autophagy activity in cystic fibrosis. J Cyst Fibros 2019; 18:491-500. [PMID: 30737168 DOI: 10.1016/j.jcf.2019.01.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 12/16/2022]
Abstract
Autophagy is a highly regulated, biological process that provides energy during periods of stress and starvation. This conserved process also acts as a defense mechanism and clears microbes from the host cell. Autophagy is impaired in Cystic Fibrosis (CF) patients and CF mice, as their cells exhibit low expression levels of essential autophagy molecules. The genetic disorder in CF is due to mutations in the cystic fibrosis transmembrane conductance regulator (cftr) gene that encodes for a chloride channel. CF patients are particularly prone to infection by pathogens that are otherwise cleared by autophagy in healthy immune cells including Burkholderia cenocepacia (B. cenocepacia). The objective of this study is to determine the mechanism underlying weak autophagic activity in CF macrophages and find therapeutic targets to correct it. Using reduced representation bisulfite sequencing (RRBS) to determine DNA methylation profile, we found that the promoter regions of Atg12 in CF macrophages are significantly more methylated than in the wild-type (WT) immune cells, accompanied by low protein expression. The natural product epigallocatechin-3-gallate (EGCG) significantly reduced the methylation of Atg12 promoter improving its expression. Accordingly, EGCG restricted B. cenocepacia replication within CF mice and their derived macrophages by improving autophagy and preventing dissemination. In addition, EGCG improved the function of CFTR protein. Altogether, utilizing RRBS for the first time in the CF field revealed a previously unrecognized mechanism for reduced autophagic activity in CF. Our data also offers a mechanism by which EGCG exerts its positive effects in CF.
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134
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Protective Features of Autophagy in Pulmonary Infection and Inflammatory Diseases. Cells 2019; 8:cells8020123. [PMID: 30717487 PMCID: PMC6406971 DOI: 10.3390/cells8020123] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 01/29/2019] [Accepted: 01/31/2019] [Indexed: 12/12/2022] Open
Abstract
Autophagy is a highly conserved catabolic process involving autolysosomal degradation of cellular components, including protein aggregates, damaged organelles (such as mitochondria, endoplasmic reticulum, and others), as well as various pathogens. Thus, the autophagy pathway represents a major adaptive response for the maintenance of cellular and tissue homeostasis in response to numerous cellular stressors. A growing body of evidence suggests that autophagy is closely associated with diverse human diseases. Specifically, acute lung injury (ALI) and inflammatory responses caused by bacterial infection or xenobiotic inhalation (e.g., chlorine and cigarette smoke) have been reported to involve a spectrum of alterations in autophagy phenotypes. The role of autophagy in pulmonary infection and inflammatory diseases could be protective or harmful dependent on the conditions. In this review, we describe recent advances regarding the protective features of autophagy in pulmonary diseases, with a focus on ALI, idiopathic pulmonary fibrosis (IPF), chronic obstructive pulmonary disease (COPD), tuberculosis, pulmonary arterial hypertension (PAH) and cystic fibrosis.
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135
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Bodas M, Vij N. Adapting Proteostasis and Autophagy for Controlling the Pathogenesis of Cystic Fibrosis Lung Disease. Front Pharmacol 2019; 10:20. [PMID: 30774592 PMCID: PMC6367269 DOI: 10.3389/fphar.2019.00020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 01/09/2019] [Indexed: 12/20/2022] Open
Abstract
Cystic fibrosis (CF), a fatal genetic disorder predominant in the Caucasian population, is caused by mutations in the cystic fibrosis transmembrane conductance regulator (Cftr) gene. The most common mutation is the deletion of phenylalanine from the position-508 (F508del-CFTR), resulting in a misfolded-CFTR protein, which is unable to fold, traffic and retain its plasma membrane (PM) localization. The resulting CFTR dysfunction, dysregulates variety of key cellular mechanisms such as chloride ion transport, airway surface liquid (ASL) homeostasis, mucociliary-clearance, inflammatory-oxidative signaling, and proteostasis that includes ubiquitin-proteasome system (UPS) and autophagy. A collective dysregulation of these key homoeostatic mechanisms contributes to the development of chronic obstructive cystic fibrosis lung disease, instead of the classical belief focused exclusively on ion-transport defect. Hence, therapeutic intervention(s) aimed at rescuing chronic CF lung disease needs to correct underlying defect that mediates homeostatic dysfunctions and not just chloride ion transport. Since targeting all the myriad defects individually could be quite challenging, it will be prudent to identify a process which controls almost all disease-promoting processes in the CF airways including underlying CFTR dysfunction. There is emerging experimental and clinical evidence that supports the notion that impaired cellular proteostasis and autophagy plays a central role in regulating pathogenesis of chronic CF lung disease. Thus, correcting the underlying proteostasis and autophagy defect in controlling CF pulmonary disease, primarily via correcting the protein processing defect of F508del-CFTR protein has emerged as a novel intervention strategy. Hence, we discuss here both the rationale and significant therapeutic utility of emerging proteostasis and autophagy modulating drugs/compounds in controlling chronic CF lung disease, where targeted delivery is a critical factor-influencing efficacy.
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Affiliation(s)
- Manish Bodas
- Department of Medicine, University of Oklahoma, Oklahoma City, OK, United States
| | - Neeraj Vij
- Department of Pediatric Pulmonary Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- 4Dx Limited, Los Angeles, CA, United States
- VIJ Biotech LLC, Baltimore, MD, United States
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136
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Bodas M, Pehote G, Silverberg D, Gulbins E, Vij N. Autophagy augmentation alleviates cigarette smoke-induced CFTR-dysfunction, ceramide-accumulation and COPD-emphysema pathogenesis. Free Radic Biol Med 2019; 131:81-97. [PMID: 30500419 DOI: 10.1016/j.freeradbiomed.2018.11.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 01/27/2023]
Abstract
In this study, we aimed to investigate precise mechanism(s) of sphingolipid-imbalance and resulting ceramide-accumulation in COPD-emphysema. Where, human and murine emphysema lung tissues or human bronchial epithelial cells (Beas2b) were used for experimental analysis. We found that lungs of smokers and COPD-subjects with increasing emphysema severity demonstrate sphingolipid-imbalance, resulting in significant ceramide-accumulation and increased ceramide/sphingosine ratio, as compared to non-emphysema/non-smoker controls. Next, we found a substantial increase in emphysema chronicity-related ceramide-accumulation in murine (C57BL/6) lungs, while sphingosine levels only slightly increased. In accordance, the expression of the acid ceramidase decreased after CS-exposure. Moreover, CS-induced (sub-chronic) ceramide-accumulation was significantly (p < 0.05) reduced by treatment with TFEB/autophagy-inducing drug, gemfibrozil (GEM), suggesting that autophagy regulates CS-induced ceramide-accumulation. Next, we validated experimentally that autophagy/lipophagy-induction using an anti-oxidant, cysteamine, significantly (p < 0.05) reduces CS-extract (CSE)-mediated intracellular-ceramide-accumulation in p62 + aggresome-bodies. In addition to intracellular-accumulation, we found that CSE also induces membrane-ceramide-accumulation by ROS-dependent acid-sphingomyelinase (ASM) activation and plasma-membrane translocation, which was significantly controlled (p < 0.05) by cysteamine (an anti-oxidant) and amitriptyline (AMT, an inhibitor of ASM). Cysteamine-mediated and CSE-induced membrane-ceramide regulation was nullified by CFTR-inhibitor-172, demonstrating that CFTR controls redox impaired-autophagy dependent membrane-ceramide accumulation. In summary, our data shows that CS-mediated autophagy/lipophagy-dysfunction results in intracellular-ceramide-accumulation, while acquired CFTR-dysfunction-induced ASM causes membrane ceramide-accumulation. Thus, CS-exposure alters the sphingolipid-rheostat leading to the increased membrane- and intracellular- ceramide-accumulation inducing COPD-emphysema pathogenesis that is alleviated by treatment with cysteamine, a potent anti-oxidant with CFTR/autophagy-augmenting properties.
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Affiliation(s)
- Manish Bodas
- College of Medicine, Central Michigan University, Mt Pleasant, MI, USA
| | - Garrett Pehote
- College of Medicine, Central Michigan University, Mt Pleasant, MI, USA
| | - David Silverberg
- College of Medicine, Central Michigan University, Mt Pleasant, MI, USA
| | - Erich Gulbins
- Dept. of Molecular Biology, University of Duisburg-Essen, Germany and Dept. of Surgery, University of Cincinnati, OH, USA
| | - Neeraj Vij
- College of Medicine, Central Michigan University, Mt Pleasant, MI, USA; The Johns Hopkins University SOM University, Baltimore, MD, USA; VIJ Biotech LLC, Baltimore, MD, USA and 4Dx Ltd, Los Angeles, CA, USA.
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137
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Miao Q, Xu Y, Zhang H, Xu P, Ye J. Cigarette smoke induces ROS mediated autophagy impairment in human corneal epithelial cells. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 245:389-397. [PMID: 30453137 DOI: 10.1016/j.envpol.2018.11.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/19/2018] [Accepted: 11/08/2018] [Indexed: 06/09/2023]
Abstract
Cigarette smoke is an important indoor air pollutant which has deleterious effects on human health. Continued daily exposure to cigarette smoke has been attributed to the risk factor of ocular surface diseases. However, the mechanisms underlying the ocular surface damage are not fully elucidated. In this study, exposure to cigarette smoke extract (CSE) induced a dose- and time-dependent cytotoxicity in human corneal epithelial (HCE) cells, supported by the observation of reduced cell viability, increased apoptotic cells, elevated intracellular oxidative stress and loss of mitochondrial transmembrane potential. In addition, CSE exposure led to the impairment of proteostasis and autophagy, which resulted in the accumulation of ubiquitinated proteins as aggregates in peri-nuclear spaces. Furthermore, the autophagy inducer, cysteamine was shown to attenuate the CSE induced cell damage, oxidative stress and mitochondrial dysfunction in HCE cells. Moreover, cysteamine inhibited the formation of ubiquitin-positive aggregates around the peri-nuclear region, through regulating the autophagic activity of HCE cells. Similar to in vitro experiments, cigarette smoke induced proteostasis and autophagy impairment in corneal epithelial cells could be rescued by cysteamine in a cigarette smoke-exposed murine model. Therefore, this study may provide first evidence that dysfunction of autophagy contributes to the pathogenesis of ocular surface diseases associated with cigarette smoke exposure. Besides, it also suggests the potential therapeutic value of cysteamine in the prevention and treatment of cigarette smoke induced ocular surface injury. CSE induces cytotoxicity and accumulation of ubiquitinated proteins in HCE cells due to impairment of proteostasis and autophagy, which can be rescued by cysteamine.
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Affiliation(s)
- Qi Miao
- Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Yufeng Xu
- Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Huina Zhang
- Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Peifang Xu
- Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Juan Ye
- Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.
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138
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Semaniakou A, Croll RP, Chappe V. Animal Models in the Pathophysiology of Cystic Fibrosis. Front Pharmacol 2019; 9:1475. [PMID: 30662403 PMCID: PMC6328443 DOI: 10.3389/fphar.2018.01475] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/03/2018] [Indexed: 01/28/2023] Open
Abstract
Our understanding of the multiorgan pathology of cystic fibrosis (CF) has improved impressively during the last decades, but we still lack a full comprehension of the disease progression. Animal models have greatly contributed to the elucidation of specific mechanisms involved in CF pathophysiology and the development of new therapies. Soon after the cloning of the CF transmembrane conductance regulator (CFTR) gene in 1989, the first mouse model was generated and this model has dominated in vivo CF research ever since. Nonetheless, the failure of murine models to mirror human disease severity in the pancreas and lung has led to the generation of larger animal models such as pigs and ferrets. The following review presents and discusses data from the current animal models used in CF research.
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Affiliation(s)
- Anna Semaniakou
- Department of Physiology and Biophysics, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Roger P Croll
- Department of Physiology and Biophysics, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Valerie Chappe
- Department of Physiology and Biophysics, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
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139
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Ryter SW, Bhatia D, Choi ME. Autophagy: A Lysosome-Dependent Process with Implications in Cellular Redox Homeostasis and Human Disease. Antioxid Redox Signal 2019; 30:138-159. [PMID: 29463101 PMCID: PMC6251060 DOI: 10.1089/ars.2018.7518] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 02/20/2018] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Autophagy, a lysosome-dependent homeostatic process inherent to cells and tissues, has emerging significance in the pathogenesis of human disease. This process enables the degradation and turnover of cytoplasmic substrates via membrane-dependent sequestration in autophagic vesicles (autophagosomes) and subsequent lysosomal delivery of cargo. Recent Advances: Selective forms of autophagy can target specific substrates (e.g., organelles, protein aggregates, and lipids) for processing. Autophagy is highly regulated by oxidative stress, including exposure to altered oxygen tension, by direct and indirect mechanisms, and contributes to inducible defenses against oxidative stress. Mitochondrial autophagy (mitophagy) plays a critical role in the oxidative stress response, through maintenance of mitochondrial integrity. CRITICAL ISSUES Autophagy can impact a number of vital cellular processes including inflammation and adaptive immunity, host defense, lipid metabolism and storage, mitochondrial homeostasis, and clearance of aggregated proteins, all which may be of significance in human disease. Autophagy can exert both maladaptive and adaptive roles in disease pathogenesis, which may also be influenced by autophagy impairment. This review highlights the essential roles of autophagy in human diseases, with a focus on diseases in which oxidative stress or inflammation play key roles, including human lung, liver, kidney and heart diseases, metabolic diseases, and diseases of the cardiovascular and neural systems. FUTURE DIRECTIONS Investigations that further elucidate the complex role of autophagy in the pathogenesis of disease will facilitate targeting this pathway for therapies in specific diseases.
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Affiliation(s)
- Stefan W. Ryter
- Division of Pulmonary and Critical Care Medicine, Weill Cornell Medicine, New York, New York
| | - Divya Bhatia
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Mary E. Choi
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York
- NewYork-Presbyterian Hospital, Weill Cornell Medical Center, New York, New York
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140
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Huang X, Zhu Z, Guo X, Kong X. The roles of microRNAs in the pathogenesis of chronic obstructive pulmonary disease. Int Immunopharmacol 2018; 67:335-347. [PMID: 30578969 DOI: 10.1016/j.intimp.2018.12.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/16/2018] [Accepted: 12/05/2018] [Indexed: 02/07/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by a progressive and irreversible airflow obstruction, with an abnormal lung function. The etiology of COPD correlates with complex interactions between environmental and genetic determinants. However, the exact pathogenesis of COPD is obscure although it involves multiple aspects including oxidative stress, imbalance between proteolytic and anti-proteolytic activity, immunity and inflammation, apoptosis, and repair and destruction in both airways and lungs. Many genes have been demonstrated to be involved in those pathogenic processes of this disease in patients exposed to harmful environmental factors. Previous reports have investigated promising microRNAs (miRNAs) to disclose the molecular mechanisms for COPD development induced by different environmental exposure and genetic predisposition encounter, and find some potential miRNA biomarkers for early diagnosis and treatment targets of COPD. In this review, we summarized the expression profiles of the reported miRNAs from studies of COPD associated with environmental risk factors including cigarette smoking and air pollution exposures, and provided an overview of roles of those miRNAs in the pathogenesis of the disease. We also highlighted the potential utility and limitations of miRNAs serving as diagnostic biomarkers and therapeutic targets for COPD.
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Affiliation(s)
- Xinwei Huang
- Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Zongxin Zhu
- Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Xiaoran Guo
- Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Xiangyang Kong
- Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China.
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141
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Pesce E, Sondo E, Ferrera L, Tomati V, Caci E, Scudieri P, Musante I, Renda M, Baatallah N, Servel N, Hinzpeter A, di Bernardo D, Pedemonte N, Galietta LJV. The Autophagy Inhibitor Spautin-1 Antagonizes Rescue of Mutant CFTR Through an Autophagy-Independent and USP13-Mediated Mechanism. Front Pharmacol 2018; 9:1464. [PMID: 30618756 PMCID: PMC6300570 DOI: 10.3389/fphar.2018.01464] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/29/2018] [Indexed: 12/21/2022] Open
Abstract
The mutation F508del, responsible for a majority of cystic fibrosis cases, provokes the instability and misfolding of the CFTR chloride channel. Pharmacological recovery of F508del-CFTR may be obtained with small molecules called correctors. However, treatment with a single corrector in vivo and in vitro only leads to a partial rescue, a consequence of cell quality control systems that still detect F508del-CFTR as a defective protein causing its degradation. We tested the effect of spautin-1 on F508del-CFTR since it is an inhibitor of USP10 deubiquitinase and of autophagy, a target and a biological process that have been associated with cystic fibrosis and mutant CFTR. We found that short-term treatment of cells with spautin-1 downregulates the function and expression of F508del-CFTR despite the presence of corrector VX-809, a finding obtained in multiple cell models and assays. In contrast, spautin-1 was ineffective on wild type CFTR. Silencing and upregulation of USP13 (another target of spautin-1) but not of USP10, had opposite effects on F508del-CFTR expression/function. In contrast, modulation of autophagy with known activators or inhibitors did not affect F508del-CFTR. Our results identify spautin-1 as a novel chemical probe to investigate the molecular mechanisms that prevent full rescue of mutant CFTR.
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Affiliation(s)
- Emanuela Pesce
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Elvira Sondo
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Loretta Ferrera
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Valeria Tomati
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Emanuela Caci
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Paolo Scudieri
- Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Ilaria Musante
- Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Mario Renda
- Telethon Institute of Genetics and Medicine, Pozzuoli, Italy
| | - Nesrine Baatallah
- INSERM, U1151, Institut Necker Enfants Malades, Paris, France.,Université Paris Descartes, Paris, France
| | - Nathalie Servel
- INSERM, U1151, Institut Necker Enfants Malades, Paris, France.,Université Paris Descartes, Paris, France
| | - Alexandre Hinzpeter
- INSERM, U1151, Institut Necker Enfants Malades, Paris, France.,Université Paris Descartes, Paris, France
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142
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Rodriguez-Miguelez P, Erickson ML, McCully KK, Harris RA. CrossTalk proposal: Skeletal muscle oxidative capacity is altered in patients with cystic fibrosis. J Physiol 2018; 595:1423-1425. [PMID: 28247513 DOI: 10.1113/jp272486] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
| | | | - Kevin K McCully
- Department of Kinesiology, University of Georgia, Athens, GA, USA
| | - Ryan A Harris
- Georgia Prevention Institute, Department of Pediatrics, Augusta University, Augusta, GA, USA.,Sport and Exercise Science Research Institute, University of Ulster, Jordanstown, Northern Ireland, UK
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143
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Villella VR, Venerando A, Cozza G, Esposito S, Ferrari E, Monzani R, Spinella MC, Oikonomou V, Renga G, Tosco A, Rossin F, Guido S, Silano M, Garaci E, Chao YK, Grimm C, Luciani A, Romani L, Piacentini M, Raia V, Kroemer G, Maiuri L. A pathogenic role for cystic fibrosis transmembrane conductance regulator in celiac disease. EMBO J 2018; 38:embj.2018100101. [PMID: 30498130 PMCID: PMC6331719 DOI: 10.15252/embj.2018100101] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 10/22/2018] [Accepted: 10/24/2018] [Indexed: 12/22/2022] Open
Abstract
Intestinal handling of dietary proteins usually prevents local inflammatory and immune responses and promotes oral tolerance. However, in ~ 1% of the world population, gluten proteins from wheat and related cereals trigger an HLA DQ2/8‐restricted TH1 immune and antibody response leading to celiac disease. Prior epithelial stress and innate immune activation are essential for breaking oral tolerance to the gluten component gliadin. How gliadin subverts host intestinal mucosal defenses remains elusive. Here, we show that the α‐gliadin‐derived LGQQQPFPPQQPY peptide (P31–43) inhibits the function of cystic fibrosis transmembrane conductance regulator (CFTR), an anion channel pivotal for epithelial adaptation to cell‐autonomous or environmental stress. P31–43 binds to, and reduces ATPase activity of, the nucleotide‐binding domain‐1 (NBD1) of CFTR, thus impairing CFTR function. This generates epithelial stress, tissue transglutaminase and inflammasome activation, NF‐κB nuclear translocation and IL‐15 production, that all can be prevented by potentiators of CFTR channel gating. The CFTR potentiator VX‐770 attenuates gliadin‐induced inflammation and promotes a tolerogenic response in gluten‐sensitive mice and cells from celiac patients. Our results unveil a primordial role for CFTR as a central hub orchestrating gliadin activities and identify a novel therapeutic option for celiac disease.
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Affiliation(s)
- Valeria R Villella
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Andrea Venerando
- Department of Comparative Biomedicine and Food Science, University of Padova, Padova, Italy
| | - Giorgio Cozza
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Speranza Esposito
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Eleonora Ferrari
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
| | - Romina Monzani
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
| | - Mara C Spinella
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy.,Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
| | - Vasilis Oikonomou
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Giorgia Renga
- Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Antonella Tosco
- Pediatric Unit, Department of Translational Medical Sciences, Regional Cystic Fibrosis Center, Federico II University Naples, Naples, Italy
| | - Federica Rossin
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Stefano Guido
- Department of Chemical, Materials and Production Engineering, Federico II University Naples, Naples, Italy
| | - Marco Silano
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Roma, Italy
| | - Enrico Garaci
- University San Raffaele and 21 IRCCS San Raffaele, Rome, Italy
| | - Yu-Kai Chao
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Munich (LMU), Munich, Germany
| | - Christian Grimm
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Munich (LMU), Munich, Germany
| | | | - Luigina Romani
- Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
| | - Mauro Piacentini
- Department of Biology, University of Rome "Tor Vergata", Rome, Italy.,National Institute for Infectious Diseases IRCCS "L. Spallanzani", Rome, Italy
| | - Valeria Raia
- Pediatric Unit, Department of Translational Medical Sciences, Regional Cystic Fibrosis Center, Federico II University Naples, Naples, Italy
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe11 labellisée Ligue Nationale Contrele Cancer, Paris, France .,Centre de Recherche des Cordeliers, INSERM U1138, Paris, France.,Université Paris Descartes, Paris, France.,Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.,Department of Women's and Children's Health, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Luigi Maiuri
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy .,Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
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Perra L, Balloy V, Foussignière T, Moissenet D, Petat H, Mungrue IN, Touqui L, Corvol H, Chignard M, Guillot L. CHAC1 Is Differentially Expressed in Normal and Cystic Fibrosis Bronchial Epithelial Cells and Regulates the Inflammatory Response Induced by Pseudomonas aeruginosa. Front Immunol 2018; 9:2823. [PMID: 30555487 PMCID: PMC6282009 DOI: 10.3389/fimmu.2018.02823] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/15/2018] [Indexed: 12/31/2022] Open
Abstract
In cystic fibrosis (CF), Pseudomonas aeruginosa (Pa) colonizes the lungs, leading to chronic inflammation of the bronchial epithelium. ChaC glutathione-specific γ-glutamylcyclotransferase 1 (CHAC1) mRNA is differentially expressed in primary human airway epithelial cells from bronchi (hAECBs) from patients with CF and healthy patients at baseline and upon infection with Pa. CHAC1 degrades glutathione and is associated with ER stress and apoptosis pathways. In this study, we examined the roles of CHAC1 in the inflammatory response and apoptosis in lung epithelial cells. First, we confirmed by reverse transcription quantitative polymerase chain reaction that CHAC1 mRNA was overexpressed in hAECBs from patients without CF compared with the expression in hAECBs from patients with CF upon Pa (PAK strain) infection. Moreover, the Pa virulence factors LPS and flagellin were shown to induce CHAC1 expression in cells from patients without CF. Using NCI-H292 lung epithelial cells, we found that LPS-induced CHAC1 mRNA expression was PERK-independent and involved ATF4. Additionally, using CHAC1 small interfering RNA, we showed that reduced CHAC1 expression in the context of LPS and flagellin stimulation was associated with modulation of inflammatory markers and alteration of NF-κB signaling. Finally, we showed that Pa was not able to induce apoptosis in NCI-H292 cells. Our results suggest that CHAC1 is involved in the regulation of inflammation in bronchial cells during Pa infection and may explain the excessive inflammation present in the respiratory tracts of patients with CF.
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Affiliation(s)
- Léa Perra
- Sorbonne Université, Inserm, Centre de recherche Saint-Antoine (CRSA), Paris, France
| | - Viviane Balloy
- Sorbonne Université, Inserm, Centre de recherche Saint-Antoine (CRSA), Paris, France
| | - Tobias Foussignière
- Sorbonne Université, Inserm, Centre de recherche Saint-Antoine (CRSA), Paris, France
| | - Didier Moissenet
- Department of Bacteriology, APHP, Hôpital St-Antoine, Paris, France
| | - Hortense Petat
- Sorbonne Université, Inserm, Centre de recherche Saint-Antoine (CRSA), Paris, France
| | - Imran N Mungrue
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Lhousseine Touqui
- Equipe mixte Institut Pasteur/Paris V "Mucoviscidose et Bronchopathies Chroniques" Institut Pasteur, Paris, France
| | - Harriet Corvol
- Sorbonne Université, Inserm, Centre de recherche Saint-Antoine (CRSA), Paris, France.,Pneumologie Pédiatrique, APHP, Hôpital Trousseau, Paris, France
| | - Michel Chignard
- Sorbonne Université, Inserm, Centre de recherche Saint-Antoine (CRSA), Paris, France
| | - Loic Guillot
- Sorbonne Université, Inserm, Centre de recherche Saint-Antoine (CRSA), Paris, France
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Takahashi M, Kitaura H, Kakita A, Kakihana T, Katsuragi Y, Nameta M, Zhang L, Iwakura Y, Nawa H, Higuchi M, Komatsu M, Fujii M. USP10 Is a Driver of Ubiquitinated Protein Aggregation and Aggresome Formation to Inhibit Apoptosis. iScience 2018; 9:433-450. [PMID: 30469013 PMCID: PMC6249355 DOI: 10.1016/j.isci.2018.11.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 09/19/2018] [Accepted: 11/01/2018] [Indexed: 02/07/2023] Open
Abstract
Accumulation of ubiquitinated proteins is cytotoxic, but cells inactivate these cytotoxicities by inducing aggresome formation. We found that ubiquitin-specific protease 10 (USP10) inhibits ubiquitinated protein-induced apoptosis by inducing aggresome formation. USP10 interacted with the ubiquitin receptor p62 and the interaction augmented p62-dependent ubiquitinated protein aggregation and aggresome formation, thereby cooperatively inhibiting apoptosis. We provide evidence that USP10/p62-induced protein aggregates inhibit proteasome activity, which increases the amount of ubiquitinated proteins and promotes aggresome formation. USP10 induced aggresomes containing α-synuclein, a pathogenic protein in Parkinson disease, in cultured cells. In Parkinson disease brains, USP10 was colocalized with α-synuclein in the disease-linked aggresome-like inclusion Lewy bodies, suggesting that USP10 inhibits α-synuclein-induced neurotoxicity by promoting Lewy body formation. Collectively, these findings suggest that USP10 is a critical factor to control protein aggregation, aggresome formation, and cytotoxicity in protein-aggregation-related diseases. USP10 induces ubiquitinated protein aggregation and aggresome formation USP10 inhibits ubiquitinated protein-induced apoptosis by aggresome formation USP10 induces α-synuclein-positive aggresome USP10 is colocalized with α-synuclein in Lewy body in Parkinson disease
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Affiliation(s)
- Masahiko Takahashi
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Hiroki Kitaura
- Department of Pathology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Taichi Kakihana
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Yoshinori Katsuragi
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Masaaki Nameta
- Electron Microscope Core Facility, Niigata University, Niigata 951-8510, Japan
| | - Lu Zhang
- Department of Pathology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Yuriko Iwakura
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata 951-8510, Japan
| | - Hiroyuki Nawa
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Niigata 951-8510, Japan
| | - Masaya Higuchi
- Department of Microbiology, Kanazawa Medical University School of Medicine, Uchinada, 920-0293, Japan
| | - Masaaki Komatsu
- Department of Biochemistry, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan
| | - Masahiro Fujii
- Division of Virology, Niigata University Graduate School of Medical and Dental Sciences, Niigata 951-8510, Japan.
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146
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Assani K, Shrestha CL, Rinehardt H, Zhang S, Robledo-Avila F, Wellmerling J, Partida-Sanchez S, Cormet-Boyaka E, Reynolds SD, Schlesinger LS, Kopp BT. AR-13 reduces antibiotic-resistant bacterial burden in cystic fibrosis phagocytes and improves cystic fibrosis transmembrane conductance regulator function. J Cyst Fibros 2018; 18:622-629. [PMID: 30366849 DOI: 10.1016/j.jcf.2018.10.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 09/13/2018] [Accepted: 10/14/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND There are no effective treatments for Burkholderia cenocepacia in patients with cystic fibrosis (CF) due to bacterial multi-drug resistance and defective host killing. We demonstrated that decreased bacterial killing in CF is caused by reduced macrophage autophagy due to defective cystic fibrosis transmembrane conductance regulator (CFTR) function. AR-12 is a small molecule autophagy inducer that kills intracellular pathogens such as Francisella. We evaluated the efficacy of AR-12 and a new analogue AR-13 in reducing bacterial burden in CF phagocytes. METHODS Human CF and non-CF peripheral blood monocyte-derived macrophages, neutrophils, and nasal epithelial cells were exposed to CF bacterial strains in conjunction with treatment with antibiotics and/or AR compounds. RESULTS AR-13 and not AR-12 had growth inhibition on B. cenocepacia and methicillin-resistantStaphylococcus aureus (MRSA) in media alone. There was a 99% reduction in MRSA in CF macrophages, 71% reduction in Pseudomonas aeruginosa in CF neutrophils, and 70% reduction in non-CF neutrophils using AR-13. Conversely, there was no reduction in B. cenocepacia in infected CF and non-CF macrophages using AR-13 alone, but AR-13 and antibiotics synergistically reduced B. cenocepacia in CF macrophages. AR-13 improved autophagy in CF macrophages and CF patient-derived epithelial cells, and increased CFTR protein expression and channel function in CF epithelial cells. CONCLUSIONS The novel AR-12 analogue AR-13, in combination with antibiotics, reduced antibiotic-resistant bacterial burden in CF phagocytes, which correlated with increased autophagy and CFTR expression. AR-13 is a novel therapeutic for patients infected with B. cenocepacia and other resistant organisms that lack effective therapies.
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Affiliation(s)
- Kaivon Assani
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Chandra L Shrestha
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Hannah Rinehardt
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Shuzhong Zhang
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Frank Robledo-Avila
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Jack Wellmerling
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, United States
| | - Santiago Partida-Sanchez
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | - Estelle Cormet-Boyaka
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, United States
| | - Susan D Reynolds
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States
| | | | - Benjamin T Kopp
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH, United States; Division of Pulmonary Medicine, Nationwide Children's Hospital, Columbus, OH, United States.
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147
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Jiang X, Tang Q, Zhang J, Wang H, Bai L, Meng P, Qin X, Xu G, Bose DD, Wang B, Chen C, Zou Z. Autophagy-dependent release of zinc ions is critical for acute lung injury triggered by zinc oxide nanoparticles. Nanotoxicology 2018; 12:1068-1091. [PMID: 30317896 DOI: 10.1080/17435390.2018.1513094] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Pulmonary exposure to zinc oxide nanoparticles (ZnONPs) could cause acute lung injury (ALI), but the underlying molecular mechanism remains unclear. Herein, we established a ZnONPs-induced ALI mouse model, characterized by the histopathological changes (edema and infiltration of inflammatory cells in lung tissues), and the elevation of total protein and cytokine interleukin-6 in bronchoalveolar lavage fluid in time- and dose-dependent manners. This model also exhibited features like the disturbance of redox-state (reduced of glutathione to glutathione disulfide ratio, elevation of heme oxygenase-1 and superoxide dismutase 2), the decrease of adenosine triphosphate synthesis and the release of zinc ions in the lung tissues. Interestingly, we found that ZnONPs exposure caused the accumulation of autophagic vacuoles and the elevation of microtubule-associated proteins 1A/1B light chain (LC)3B-II and p62, indicating the impairment of autophagic flux. Our data indicated that the above process might be regulated by the activation of AMP-activated protein kinase but not the mammalian target of rapamycin pathway. The association between ZnONPs-induced ALI and autophagy was further verified by a classical autophagy inhibitor, 3-methyladenine (3-MA). 3-MA administration reduced the accumulation of autophagic vacuoles, the expression of LC3B-II and p62, followed by a significant attenuation of histopathological changes, inflammation, and oxidative stress. More importantly, 3-MA could directly decrease the release of zinc ions in lung tissues. Taken together, our study provides the evidence that ZnONPs-induced pulmonary toxicity is autophagy-dependent, suggests that limiting the release of zinc ions by inhibiting autophagy could be a feasible strategy for the prevention of ZnONPs-associated pulmonary toxicity.
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Affiliation(s)
- Xuejun Jiang
- a Center of Experimental Teaching for Public Health, Experimental Teaching and Management Center , Chongqing Medical University , Chongqing , People's Republic of China.,b Laboratory of Tissue and Cell Biology, Experimental Teaching and Management Center , Chongqing Medical University , Chongqing , People's Republic of China
| | - Qianghu Tang
- c Department of Occupational and Environmental Health, School of Public Health and Management , Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University , Chongqing , People's Republic of China
| | - Jun Zhang
- d Institute of Life Sciences, Chongqing Medical University , Chongqing , People's Republic of China
| | - Hong Wang
- d Institute of Life Sciences, Chongqing Medical University , Chongqing , People's Republic of China
| | - Lulu Bai
- c Department of Occupational and Environmental Health, School of Public Health and Management , Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University , Chongqing , People's Republic of China
| | - Pan Meng
- c Department of Occupational and Environmental Health, School of Public Health and Management , Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University , Chongqing , People's Republic of China
| | - Xia Qin
- e Department of Pharmacy , The First Affiliated Hospital of Chongqing Medical University , Chongqing , People's Republic of China
| | - Ge Xu
- d Institute of Life Sciences, Chongqing Medical University , Chongqing , People's Republic of China
| | - Diptiman D Bose
- f Department of Pharmaceutical and Administrative Sciences, College of Pharmacy and Health Sciences , Western New England University , Springfield , MA , USA
| | - Bin Wang
- d Institute of Life Sciences, Chongqing Medical University , Chongqing , People's Republic of China
| | - Chengzhi Chen
- c Department of Occupational and Environmental Health, School of Public Health and Management , Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University , Chongqing , People's Republic of China.,g Post-doctoral Research Stations of Nursing Science, School of Nursing , Chongqing Medical University , Chongqing , People's Republic of China
| | - Zhen Zou
- d Institute of Life Sciences, Chongqing Medical University , Chongqing , People's Republic of China
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148
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Abstract
Mucociliary clearance is critically important in protecting the airways from infection and from the harmful effects of smoke and various inspired substances known to induce oxidative stress and persistent inflammation. An essential feature of the clearance mechanism involves regulation of the periciliary liquid layer on the surface of the airway epithelium, which is necessary for normal ciliary beating and maintenance of mucus hydration. The underlying ion transport processes associated with airway surface hydration include epithelial Na+ channel-dependent Na+ absorption occurring in parallel with CFTR and Ca2+-activated Cl- channel-dependent anion secretion, which are coordinately regulated to control the depth of the periciliary liquid layer. Oxidative stress is known to cause both acute and chronic effects on airway ion transport function, and an increasing number of studies in the past few years have identified an important role for autophagy as part of the physiological response to the damaging effects of oxidation. In this review, recent studies addressing the influence of oxidative stress and autophagy on airway ion transport pathways, along with results showing the potential of autophagy modulators in restoring the function of ion channels involved in transepithelial electrolyte transport necessary for effective mucociliary clearance, are presented.
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Affiliation(s)
- Scott M O'Grady
- Departments of Animal Science, Integrative Biology and Physiology, University of Minnesota , St. Paul, Minnesota
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149
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Chronic Infections: A Possible Scenario for Autophagy and Senescence Cross-Talk. Cells 2018; 7:cells7100162. [PMID: 30308990 PMCID: PMC6210027 DOI: 10.3390/cells7100162] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/04/2018] [Accepted: 10/07/2018] [Indexed: 02/07/2023] Open
Abstract
Multiple tissues and systems in the organism undergo modifications during aging due to an accumulation of damaged proteins, lipids, and genetic material. To counteract this process, the cells are equipped with specific mechanisms, such as autophagy and senescence. Particularly, the immune system undergoes a process called immunosenescence, giving rise to a chronic inflammatory status of the organism, with a decreased ability to counteract antigens. The obvious result of this process is a reduced defence capacity. Currently, there is evidence that some pathogens are able to accelerate the immunosenescence process for their own benefit. Although to date numerous reports show the autophagy–senescence relationship, or the connection between pathogens with autophagy or senescence, the link between the three actors remains unexplored. In this review, we have summarized current knowledge about important issues related to aging, senescence, and autophagy.
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150
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Noel S, Sermet-Gaudelus I, Sheppard DN. N1303K: Leaving no stone unturned in the search for transformational therapeutics. J Cyst Fibros 2018; 17:555-557. [PMID: 30126793 DOI: 10.1016/j.jcf.2018.07.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Sabrina Noel
- INSERM U1151, Institut Necker Enfants Malades, Paris, France; Université Paris Descartes, Paris, France
| | - Isabelle Sermet-Gaudelus
- INSERM U1151, Institut Necker Enfants Malades, Paris, France; Université Paris Descartes, Paris, France
| | - David N Sheppard
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, United Kingdom.
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