1
|
Delsupehe L, Steelandt T, Lemahieu J, Volders PJ, Geerdens E, Berden S, Daniels A, Froyen G, Maes B. Novel gene fusion discovery in Spitz tumours and its relevance in diagnostics. Virchows Arch 2024; 485:269-279. [PMID: 37731064 DOI: 10.1007/s00428-023-03649-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/22/2023]
Abstract
In addition to morphologic analysis, molecular diagnostic work up of Spitz tumours is often of great value for their accurate diagnosis/classification. Nowadays, next-generation sequencing (NGS) is the predominant screening method in molecular diagnostics. Up to 80% of these melanocytic neoplasms comprise gene fusions as genetic anomalies for which the driver codes for a protein harbouring a kinase domain. However, because of the variety of fusion partners the use of PCR-based targeted enrichment NGS methods is not recommended. We describe a series of four Spitz tumour samples in which distinct gene fusions were detected by hybridisation-based capture NGS (TPM3::ALK, LIMA1::ROS1, LRRFIP2::ROS1 and MYO5A::RET). Two of these fusions are not previously described. All 4 fusions were confirmed by reverse transcription-PCR. These findings demonstrate the need for molecular analysis that can detect unknown fusions in Spitz neoplasms for optimal diagnosis.
Collapse
Affiliation(s)
- Louis Delsupehe
- Laboratory for Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium
- Department Jessa & Science, LCRC (-MHU), Hasselt, Belgium
- Faculty of Medicine and Life Sciences, University of Hasselt, Hasselt, Belgium
| | - Thomas Steelandt
- Laboratory of Pathological Anatomy, Jessa Hospital, Hasselt, Belgium
| | - Julie Lemahieu
- Laboratory for Dermatopathology, Dermpat, Ghent, Belgium
| | - Pieter-Jan Volders
- Laboratory for Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Ellen Geerdens
- Laboratory for Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium
| | - Severine Berden
- Laboratory for Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium
| | - Annick Daniels
- Laboratory for Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium
| | - Guy Froyen
- Laboratory for Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium
- Department Jessa & Science, LCRC (-MHU), Hasselt, Belgium
- Faculty of Medicine and Life Sciences, University of Hasselt, Hasselt, Belgium
| | - Brigitte Maes
- Laboratory for Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, Hasselt, Belgium.
- Department Jessa & Science, LCRC (-MHU), Hasselt, Belgium.
- Faculty of Medicine and Life Sciences, University of Hasselt, Hasselt, Belgium.
| |
Collapse
|
2
|
Xiao F, Jia Y, Zhang S, Liu N, Zhang X, Wang T, Qiao J, Yang G, Che X, Chen K, Pan P, Zhou L, Sun B, Chen J, Wan P. SLC25A3 negatively regulates NLRP3 inflammasome activation by restricting the function of NLRP3. J Biol Chem 2024; 300:107233. [PMID: 38552738 PMCID: PMC11067542 DOI: 10.1016/j.jbc.2024.107233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 03/13/2024] [Accepted: 03/16/2024] [Indexed: 05/02/2024] Open
Abstract
The NACHT, leucine-rich repeat, and pyrin domains-containing protein 3 (collectively known as NLRP3) inflammasome activation plays a critical role in innate immune and pathogenic microorganism infections. However, excessive activation of NLRP3 inflammasome will lead to cellular inflammation and tissue damage, and naturally it must be precisely controlled in the host. Here, we discovered that solute carrier family 25 member 3 (SLC25A3), a mitochondrial phosphate carrier protein, plays an important role in negatively regulating NLRP3 inflammasome activation. We found that SLC25A3 could interact with NLRP3, overexpression of SLC25A3 and knockdown of SLC25A3 could regulate NLRP3 inflammasome activation, and the interaction of NLRP3 and SLC25A3 is significantly boosted in the mitochondria when the NLRP3 inflammasome is activated. Our detailed investigation demonstrated that the interaction between NLRP3 and SLC25A3 disrupted the interaction of NLRP3-NEK7, promoted ubiquitination of NLRP3, and negatively regulated NLRP3 inflammasome activation. Thus, these findings uncovered a new regulatory mechanism of NLRP3 inflammasome activation, which provides a new perspective for the therapy of NLRP3 inflammasome-associated inflammatory diseases.
Collapse
Affiliation(s)
- Feng Xiao
- Hubei Key Laboratory of Cognitive and Affective Disorders, Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, China; Department of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen, China
| | - Yaling Jia
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, China
| | - Simeng Zhang
- Foshan Institute of Medical Microbiology, Foshan, China
| | - Nanfang Liu
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, China
| | - Xuelong Zhang
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, China
| | - Tianci Wang
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, China
| | - Jialu Qiao
- Hubei Key Laboratory of Cognitive and Affective Disorders, Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, China
| | - Ge Yang
- Foshan Institute of Medical Microbiology, Foshan, China
| | - Xu Che
- Foshan Institute of Medical Microbiology, Foshan, China
| | - Keli Chen
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, China
| | - Pan Pan
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, China
| | - Lingli Zhou
- Department of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen, China
| | - Binlian Sun
- Hubei Key Laboratory of Cognitive and Affective Disorders, Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, China
| | - Jun Chen
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control (Jinan University), Ministry of Education, Guangzhou, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, China.
| | - Pin Wan
- Hubei Key Laboratory of Cognitive and Affective Disorders, Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, China; Foshan Institute of Medical Microbiology, Foshan, China.
| |
Collapse
|
3
|
Mohamed AAR, Abd-Elhakim YM, Noreldin AE, Khamis T, Elhamouly M, Akela MA, Alotaibi BS, Alosaimi ME, Khalil SS, El-Gamal M, Dahran N, El-Shetry ES. Understanding fenpropathrin-induced pulmonary toxicity: What apoptosis, inflammation, and pyreptosis reveal analyzing cross-links at the molecular, immunohistochemical, and immunofluorescent levels. Food Chem Toxicol 2024; 186:114520. [PMID: 38369055 DOI: 10.1016/j.fct.2024.114520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Fenpropathrin (FN), a pyrethroid has been linked to potential pulmonary toxic effects to humans via incident direct or indirect ingestion. Thus, we aimed to the investigate the underlying mechanisms of lung toxicity upon exposure to FN in the rat model, besides studying whether curcumin (CCM) and curcumin-loaded chitosan nanoformulation (CCM-Chs) can mitigate FN-induced lung damage. Six distinct groups, namely, control, CCM, CCM-Chs, FN, and CCM + FN, CCM-Chs + FN were assigned separately. The inflammatory, apoptotic, and oxidative stress states, histological, immunohistochemical, and immunofluorescence examination of different markers within the pulmonary tissue were applied. The results revealed that the FN-induced tissue damage might be caused by the oxidative stress induction and depressed antioxidant glutathione system in the lungs of rats. Furthermore, FN upregulated the expression of genes related to inflammation, and pyroptosis, and elevated the immunoreactivity of Caspase-3, tumor necrosis factor-α, vimentin, and 4-Hydroxynonenal in pulmonary tissues of FN-exposed rats compared to the control. CCM and CCM-Chs mitigated the FN-induced disturbances, while remarkably, CCM-Chs showed better potency than CCM in mitigating the FN-induced toxicity. In conclusion, this study shows the prominent preventive ability of CCM-Chs more than CCM in combatting the pulmonary toxicity induced by FN. This may be beneficial in developing therapeutic and preventive strategies against FN-induced pulmonary toxicity.
Collapse
Affiliation(s)
- Amany Abdel-Rahman Mohamed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Yasmina M Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Ahmed E Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, Egypt
| | - Tarek Khamis
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, 44511, Zagazig, Egypt; Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, 44519, Zagazig, Egypt
| | - Moustafa Elhamouly
- Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Mohamed A Akela
- Department of Biology, College of Sciences and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
| | - Badriyah S Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, PO Box 84428, Riyadh 1671, Saudi Arabia.
| | - Manal E Alosaimi
- Department of Basic Sciences, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Samah S Khalil
- Department of Biochemistry, Drug Information Centre, Zagazig University Hospitals, Zagazig University, Egypt
| | - Mohamed El-Gamal
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt; Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansoura, Egypt; Department of Biological Sciences, Faculty of Science, New Mansoura University, New Mansoura City, Egypt
| | - Naief Dahran
- Department of Anatomy, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Eman S El-Shetry
- Department of Anatomy, College of Medicine, University of Hail, Hail, Kingdom of Saudi Arabia; Department of Human Anatomy and Embryology, Faculty of Medicine, Zagazig University, Zagazig, 44511, Egypt
| |
Collapse
|
4
|
Puig S, Xue X, Salisbury R, Shelton MA, Kim SM, Hildebrand MA, Glausier JR, Freyberg Z, Tseng GC, Yocum AK, Lewis DA, Seney ML, MacDonald ML, Logan RW. Circadian rhythm disruptions associated with opioid use disorder in synaptic proteomes of human dorsolateral prefrontal cortex and nucleus accumbens. Mol Psychiatry 2023; 28:4777-4792. [PMID: 37674018 PMCID: PMC10914630 DOI: 10.1038/s41380-023-02241-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/18/2023] [Accepted: 08/25/2023] [Indexed: 09/08/2023]
Abstract
Opioid craving and relapse vulnerability is associated with severe and persistent sleep and circadian rhythm disruptions. Understanding the neurobiological underpinnings of circadian rhythms and opioid use disorder (OUD) may prove valuable for developing new treatments for opioid addiction. Previous work indicated molecular rhythm disruptions in the human brain associated with OUD, highlighting synaptic alterations in the dorsolateral prefrontal cortex (DLPFC) and nucleus accumbens (NAc)-key brain regions involved in cognition and reward, and heavily implicated in the pathophysiology of OUD. To provide further insights into the synaptic alterations in OUD, we used mass-spectrometry based proteomics to deeply profile protein expression alterations in bulk tissue and synaptosome preparations from DLPFC and NAc of unaffected and OUD subjects. We identified 55 differentially expressed (DE) proteins in DLPFC homogenates, and 44 DE proteins in NAc homogenates, between unaffected and OUD subjects. In synaptosomes, we identified 161 and 56 DE proteins in DLPFC and NAc, respectively, of OUD subjects. By comparing homogenate and synaptosome protein expression, we identified proteins enriched specifically in synapses that were significantly altered in both DLPFC and NAc of OUD subjects. Across brain regions, synaptic protein alterations in OUD subjects were primarily identified in glutamate, GABA, and circadian rhythm signaling. Using time-of-death (TOD) analyses, where the TOD of each subject is used as a time-point across a 24-h cycle, we were able to map circadian-related changes associated with OUD in synaptic proteomes associated with vesicle-mediated transport and membrane trafficking in the NAc and platelet-derived growth factor receptor beta signaling in DLPFC. Collectively, our findings lend further support for molecular rhythm disruptions in synaptic signaling in the human brain as a key factor in opioid addiction.
Collapse
Affiliation(s)
- Stephanie Puig
- Department of Pharmacology, Physiology and Biophysics, Boston University School of Medicine, Boston, MA, USA
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xiangning Xue
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ryan Salisbury
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Micah A Shelton
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Sam-Moon Kim
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mariah A Hildebrand
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jill R Glausier
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Zachary Freyberg
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - George C Tseng
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - David A Lewis
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Marianne L Seney
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Matthew L MacDonald
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
| | - Ryan W Logan
- Department of Pharmacology, Physiology and Biophysics, Boston University School of Medicine, Boston, MA, USA.
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Department of Psychiatry, University of Massachusetts Chan Medical School, Worcester, MA, USA.
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA, USA.
| |
Collapse
|
5
|
Pamela BE, Thamizhmaran S, Manoj J, Thanigachalam A, Carabin H, Prabhakaran V, Moorthy RK, Oommen A, Drevets DA, Rajshekhar V. Correlation between Monocyte Gene Expression and Inflammation on Brain Imaging in Patients with Solitary Cerebral Cysticercus Granuloma. Am J Trop Med Hyg 2023; 109:992-998. [PMID: 37917997 PMCID: PMC10622485 DOI: 10.4269/ajtmh.23-0325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 08/09/2023] [Indexed: 11/04/2023] Open
Abstract
Prior work has shown that 14 monocyte genes are upregulated in patients with different forms of parenchymal neurocysticercosis, including solitary cysticercus granuloma (SCG). The aim of this study was to investigate whether changes in inflammation associated with SCG seen on follow-up brain imaging are also reflected in changes in expression of these 14 genes. Peripheral blood CD14+ monocytes were isolated from 20 patients with SCG at initial diagnosis and at clinical and imaging follow-up of 6 months or more. Expressions of 14 target monocyte genes were determined by quantitative polymerase chain reaction at each visit. At a median follow-up of 14 months, the SCG had resolved in 11 patients, was persistent in four patients, and had calcified in five patients. Edema seen in the initial imaging in 17 patients had resolved in 15 patients and was markedly reduced in two patients. The expression levels of the monocyte genes LRRFIP2, TAXIBP1, and MZB1 were significantly lower at follow-up, regardless of the status of SCG on follow-up imaging. Our findings show that expression levels of monocyte genes involved with inflammatory processes decrease in patients with SCG concomitant with follow-up imaging that reveals a reduction in inflammation as revealed by complete or near-complete resolution of edema, as well as resolution or reduction in the enhancement of the granuloma.
Collapse
Affiliation(s)
| | | | - Josephin Manoj
- Department of Neurological Sciences, Christian Medical College, Vellore, India
| | | | - Hélène Carabin
- Department of Pathology and Microbiology, University of Montreal, Canada
- Department of Social and Preventive Medicine, University of Montreal, Canada
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
- Centre de Recherche en Santé Publique (CReSP), Montreal, Canada
- Groupe de Recherche en Épidémiologie des Zoonoses et Santé Publique (GREZOSP), Saint-Hyacinthe, Canada
| | | | - Ranjith K. Moorthy
- Department of Neurological Sciences, Christian Medical College, Vellore, India
| | | | - Douglas A. Drevets
- Department of Internal Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Vedantam Rajshekhar
- Department of Neurological Sciences, Christian Medical College, Vellore, India
| |
Collapse
|
6
|
Rodríguez‐Ruiz L, Lozano‐Gil JM, Naranjo‐Sánchez E, Martínez‐Balsalobre E, Martínez‐López A, Lachaud C, Blanquer M, Phung TK, García‐Moreno D, Cayuela ML, Tyrkalska SD, Pérez‐Oliva AB, Mulero V. ZAKα/P38 kinase signaling pathway regulates hematopoiesis by activating the NLRP1 inflammasome. EMBO Mol Med 2023; 15:e18142. [PMID: 37675820 PMCID: PMC10565642 DOI: 10.15252/emmm.202318142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 09/08/2023] Open
Abstract
Chronic inflammatory diseases are associated with hematopoietic lineage bias, including neutrophilia and anemia. We have recently identified that the canonical inflammasome mediates the cleavage of the master erythroid transcription factor GATA1 in hematopoietic stem and progenitor cells (HSPCs). We report here that genetic inhibition of Nlrp1 resulted in reduced number of neutrophils and increased erythrocyte counts in zebrafish larvae. We also found that the NLRP1 inflammasome in human cells was inhibited by LRRFIP1 and FLII, independently of DPP9, and both inhibitors regulated hematopoiesis. Mechanistically, erythroid differentiation resulted in ribosomal stress-induced activation of the ZAKα/P38 kinase axis which, in turn, phosphorylated and promoted the assembly of NLRP1 in both zebrafish and human. Finally, inhibition of Zaka with the FDA/EMA-approved drug Nilotinib alleviated neutrophilia in a zebrafish model of neutrophilic inflammation and promoted erythroid differentiation and GATA1 accumulation in K562 cells. In conclusion, our results reveal that the NLRP1 inflammasome regulates hematopoiesis and pave the way to develop novel therapeutic strategies for the treatment of hematopoietic alterations associated with chronic inflammatory and rare diseases.
Collapse
Affiliation(s)
- Lola Rodríguez‐Ruiz
- Departmento de Biología Celular e Histología, Facultad de BiologíaUniversidad de MurciaMurciaSpain
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
| | - Juan M Lozano‐Gil
- Departmento de Biología Celular e Histología, Facultad de BiologíaUniversidad de MurciaMurciaSpain
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
| | - Elena Naranjo‐Sánchez
- Departmento de Biología Celular e Histología, Facultad de BiologíaUniversidad de MurciaMurciaSpain
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
- Hospital Clínico Universitario Virgen de la ArrixacaMurciaSpain
| | - Elena Martínez‐Balsalobre
- Departmento de Biología Celular e Histología, Facultad de BiologíaUniversidad de MurciaMurciaSpain
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
- Hospital Clínico Universitario Virgen de la ArrixacaMurciaSpain
| | - Alicia Martínez‐López
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
| | - Christophe Lachaud
- Aix‐Marseille University, Inserm, CNRS, Institut Paoli‐Calmettes, CRCMMarseilleFrance
| | - Miguel Blanquer
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Hospital Clínico Universitario Virgen de la ArrixacaMurciaSpain
- Departamento de Medicina y Unidad de Terapia Celular y Trasplante Hematopoyético, Facultad de MedicinaUniversidad de MurciaMurciaSpain
| | - Toan K Phung
- MRC PPU, Sir James Black Centre, School of Life SciencesUniversity of DundeeDundeeUK
| | - Diana García‐Moreno
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
| | - María L Cayuela
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
- Hospital Clínico Universitario Virgen de la ArrixacaMurciaSpain
| | - Sylwia D Tyrkalska
- Departmento de Biología Celular e Histología, Facultad de BiologíaUniversidad de MurciaMurciaSpain
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
| | - Ana B Pérez‐Oliva
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
| | - Victoriano Mulero
- Departmento de Biología Celular e Histología, Facultad de BiologíaUniversidad de MurciaMurciaSpain
- Instituto Murciano de Investigación Biosanitaria (IMIB)‐Pascual ParrillaMurciaSpain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)Instituto de Salud Carlos IIIMadridSpain
| |
Collapse
|
7
|
Puig S, Xue X, Salisbury R, Shelton MA, Kim SM, Hildebrand MA, Glausier JR, Freyberg Z, Tseng GC, Yocum AK, Lewis DA, Seney ML, MacDonald ML, Logan RW. Circadian rhythm disruptions associated with opioid use disorder in the synaptic proteomes of the human dorsolateral prefrontal cortex and nucleus accumbens. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.07.536056. [PMID: 37066169 PMCID: PMC10104116 DOI: 10.1101/2023.04.07.536056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Opioid craving and relapse vulnerability is associated with severe and persistent sleep and circadian rhythm disruptions. Understanding the neurobiological underpinnings of circadian rhythms and opioid use disorder (OUD) may prove valuable for developing new treatments for opioid addiction. Previous work indicated molecular rhythm disruptions in the human brain associated with OUD, highlighting synaptic alterations in the dorsolateral prefrontal cortex (DLPFC) and nucleus accumbens (NAc)-key brain regions involved in cognition and reward, and heavily implicated in the pathophysiology of OUD. To provide further insights into the synaptic alterations in OUD, we used mass-spectrometry based proteomics to deeply profile protein expression alterations in bulk tissue and synaptosome preparations from DLPFC and NAc of unaffected and OUD subjects. We identified 55 differentially expressed (DE) proteins in DLPFC homogenates, and 44 DE proteins in NAc homogenates, between unaffected and OUD subjects. In synaptosomes, we identified 161 and 56 DE proteins in DLPFC and NAc, respectively, of OUD subjects. By comparing homogenate and synaptosome protein expression, we identified proteins enriched specifically in synapses that were significantly altered in both DLPFC and NAc of OUD subjects. Across brain regions, synaptic protein alterations in OUD subjects were primarily identified in glutamate, GABA, and circadian rhythm signaling. Using time-of-death (TOD) analyses, where the TOD of each subject is used as a time-point across a 24- hour cycle, we were able to map circadian-related changes associated with OUD in synaptic proteomes related to vesicle-mediated transport and membrane trafficking in the NAc and platelet derived growth factor receptor beta signaling in DLPFC. Collectively, our findings lend further support for molecular rhythm disruptions in synaptic signaling in the human brain as a key factor in opioid addiction.
Collapse
|
8
|
Li X, Jiang Q, Song G, Barkestani MN, Wang Q, Wang S, Fan M, Fang C, Jiang B, Johnson J, Geirsson A, Tellides G, Pober JS, Jane-Wit D. A ZFYVE21-Rubicon-RNF34 signaling complex promotes endosome-associated inflammasome activity in endothelial cells. Nat Commun 2023; 14:3002. [PMID: 37225719 PMCID: PMC10209169 DOI: 10.1038/s41467-023-38684-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 05/10/2023] [Indexed: 05/26/2023] Open
Abstract
Internalization of complement membrane attack complexes (MACs) assembles NLRP3 inflammasomes in endothelial cells (EC) and promotes IL-β-mediated tissue inflammation. Informed by proteomics analyses of FACS-sorted inflammasomes, we identify a protein complex modulating inflammasome activity on endosomes. ZFVYE21, a Rab5 effector, partners with Rubicon and RNF34, forming a "ZRR" complex that is stabilized in a Rab5- and ZFYVE21-dependent manner on early endosomes. There, Rubicon competitively disrupts inhibitory associations between caspase-1 and its pseudosubstrate, Flightless I (FliI), while RNF34 ubiquitinylates and degradatively removes FliI from the signaling endosome. The concerted actions of the ZRR complex increase pools of endosome-associated caspase-1 available for activation. The ZRR complex is assembled in human tissues, its associated signaling responses occur in three mouse models in vivo, and the ZRR complex promotes inflammation in a skin model of chronic rejection. The ZRR signaling complex reflects a potential therapeutic target for attenuating inflammasome-mediated tissue injury.
Collapse
Affiliation(s)
- Xue Li
- VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Quan Jiang
- VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Guiyu Song
- VA Connecticut Healthcare System, West Haven, CT, USA.
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA.
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China.
| | - Mahsa Nouri Barkestani
- VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Qianxun Wang
- VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Shaoxun Wang
- VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Matthew Fan
- Yale College, Yale University, New Haven, CT, USA
| | - Caodi Fang
- VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Bo Jiang
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
- Dept of Surgery, Yale University School of Medicine, New Haven, CT, USA
- Dept of Vascular Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Justin Johnson
- Dept of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Arnar Geirsson
- Dept of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - George Tellides
- Dept of Surgery, Yale University School of Medicine, New Haven, CT, USA
| | - Jordan S Pober
- Dept of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | - Dan Jane-Wit
- VA Connecticut Healthcare System, West Haven, CT, USA.
- Department of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA.
- Dept of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
| |
Collapse
|
9
|
Clark IC, Mudvari P, Thaploo S, Smith S, Abu-Laban M, Hamouda M, Theberge M, Shah S, Ko SH, Pérez L, Bunis DG, Lee JS, Kilam D, Zakaria S, Choi S, Darko S, Henry AR, Wheeler MA, Hoh R, Butrus S, Deeks SG, Quintana FJ, Douek DC, Abate AR, Boritz EA. HIV silencing and cell survival signatures in infected T cell reservoirs. Nature 2023; 614:318-325. [PMID: 36599978 PMCID: PMC9908556 DOI: 10.1038/s41586-022-05556-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 11/11/2022] [Indexed: 01/06/2023]
Abstract
Rare CD4 T cells that contain HIV under antiretroviral therapy represent an important barrier to HIV cure1-3, but the infeasibility of isolating and characterizing these cells in their natural state has led to uncertainty about whether they possess distinctive attributes that HIV cure-directed therapies might exploit. Here we address this challenge using a microfluidic technology that isolates the transcriptomes of HIV-infected cells based solely on the detection of HIV DNA. HIV-DNA+ memory CD4 T cells in the blood from people receiving antiretroviral therapy showed inhibition of six transcriptomic pathways, including death receptor signalling, necroptosis signalling and antiproliferative Gα12/13 signalling. Moreover, two groups of genes identified by network co-expression analysis were significantly associated with HIV-DNA+ cells. These genes (n = 145) accounted for just 0.81% of the measured transcriptome and included negative regulators of HIV transcription that were higher in HIV-DNA+ cells, positive regulators of HIV transcription that were lower in HIV-DNA+ cells, and other genes involved in RNA processing, negative regulation of mRNA translation, and regulation of cell state and fate. These findings reveal that HIV-infected memory CD4 T cells under antiretroviral therapy are a distinctive population with host gene expression patterns that favour HIV silencing, cell survival and cell proliferation, with important implications for the development of HIV cure strategies.
Collapse
Affiliation(s)
- Iain C Clark
- Department of Bioengineering and Therapeutic Sciences, School of Pharmacy, University of California, San Francisco, San Francisco, CA, USA
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Bioengineering, California Institute for Quantitative Biosciences, QB3, University of California, Berkeley, Berkeley, CA, USA
| | - Prakriti Mudvari
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Shravan Thaploo
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Samuel Smith
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Mohammad Abu-Laban
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Mehdi Hamouda
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Marc Theberge
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Sakshi Shah
- Department of Bioengineering, California Institute for Quantitative Biosciences, QB3, University of California, Berkeley, Berkeley, CA, USA
| | - Sung Hee Ko
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Liliana Pérez
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Daniel G Bunis
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - James S Lee
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Divya Kilam
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Saami Zakaria
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Sally Choi
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Samuel Darko
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Amy R Henry
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Michael A Wheeler
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Rebecca Hoh
- Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Salwan Butrus
- Department of Chemical and Biomolecular Engineering, California Institute for Quantitative Biosciences, QB3, University of California, Berkeley, Berkeley, CA, USA
| | - Steven G Deeks
- Department of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Francisco J Quintana
- Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Daniel C Douek
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Adam R Abate
- Department of Bioengineering and Therapeutic Sciences, School of Pharmacy, University of California, San Francisco, San Francisco, CA, USA.
| | - Eli A Boritz
- Virus Persistence and Dynamics Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
| |
Collapse
|
10
|
Ma N, Sun Y, Kong Y, Jin Y, Yu F, Liu L, Yang L, Liu W, Gao X, Liu D, Zhang X, Li L. Comprehensive investigating of mismatch repair genes (MMR) polymorphisms in participants with chronic hepatitis B virus infection. Front Genet 2023; 14:1077297. [PMID: 36816025 PMCID: PMC9928949 DOI: 10.3389/fgene.2023.1077297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/13/2023] [Indexed: 02/04/2023] Open
Abstract
Background and aim: In this study, we focused on the relationship between single nucleotide polymorphisms in MMR genes and the occurrence and development of HBV infection. Materials and methods: A total of 3,128 participants were divided into five groups: negative control group (NeC), spontaneous clearance group (SC), chronic hepatitis B group (CHB), liver cirrhosis group (LC) and hepatocellular carcinoma group (HCC), CHB, liver cirrhosis and hepatocellular carcinoma constitute HLD. We conducted three case-control studies: NeC (840 cases) vs. HLD (1792 cases), SC (486 cases) vs. HLD (1792 cases) and CHB + LC (1,371 cases) vs. HCC (421 cases). 11 polymorphic loci in MLH1, MLH3, MSH5, PMS1 and PMS2 were involved in genotyping by Sequenom MassArray. The SNPStats performed Hardy-Weinberg equilibrium test. Linkage disequilibrium patterns were visualized using Haploview4.2. The GMDR (v0.9) was conducted to generalized multifactor dimension reduction analysis. The correlation, multiplicative interaction and additive interaction analyses were calculated by Logistic Regression through SPSS21.0. Matrix and programmed excel were also involved in the calculation of additive interaction. Results: In NeC vs. HLD group, MSH5-rs1150793(G) was a risk base to HBV susceptibility (nominal p = 0.002, OR = 1.346). We found multiplicative interaction between MLH1-rs1540354 (AA + AT) and PMS1-rs1233255 (AA) (nominal p = 0.024, OR = 1.240). There was additive interaction between PMS1-rs1233255 (AA) and PMS1-rs256554(CA + CC). In SC vs. HLD group, MLH1-rs1540354 (TT) was a risk genotype (nominal p < 0.05, OR>1). Through haplotype analysis, we found the linkage disequilibrium of three loci in MLH1. The results of GMDR showed the optimal five-locus model about the spontaneous clearance of HBV. In CHB + LC vs. HCC group, PMS2-rs12112229(A) was related to the cancerization of liver. Conclusion: We found rs1150793(G), rs1540354(T) and rs12112229(A) were significantly related to HBV susceptibility, spontaneous clearance of HBV and cancerization after infection, respectively.
Collapse
Affiliation(s)
- Ning Ma
- Department of Social Medicine and HealthCare Management, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Yucheng Sun
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Yanan Kong
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Yiyao Jin
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Fengxue Yu
- Division of gastroenterology, The Second Hospital of Hebei Medical University, The Hebei Key Laboratory of Gastroenterology, Shijiazhuang, China
| | - Lianfeng Liu
- Department of Pediatrics, Shijiazhuang Maternal and Child Health Hospital, Shijiazhuang, China
| | - Lei Yang
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Wenxuan Liu
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Xia Gao
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Dianwu Liu
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China
| | - Xiaolin Zhang
- Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China,*Correspondence: Xiaolin Zhang, ; Lu Li,
| | - Lu Li
- Department of Social Medicine and HealthCare Management, School of Public Health, Hebei Medical University, Hebei Key Laboratory of Environment and Human Health, Shijiazhuang, China,*Correspondence: Xiaolin Zhang, ; Lu Li,
| |
Collapse
|
11
|
Lee J, Pang K, Kim J, Hong E, Lee J, Cho HJ, Park J, Son M, Park S, Lee M, Ooshima A, Park KS, Yang HK, Yang KM, Kim SJ. ESRP1-regulated isoform switching of LRRFIP2 determines metastasis of gastric cancer. Nat Commun 2022; 13:6274. [PMID: 36307405 PMCID: PMC9616898 DOI: 10.1038/s41467-022-33786-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 10/03/2022] [Indexed: 12/25/2022] Open
Abstract
Although accumulating evidence indicates that alternative splicing is aberrantly altered in many cancers, the functional mechanism remains to be elucidated. Here, we show that epithelial and mesenchymal isoform switches of leucine-rich repeat Fli-I-interacting protein 2 (LRRFIP2) regulated by epithelial splicing regulatory protein 1 (ESRP1) correlate with metastatic potential of gastric cancer cells. We found that expression of the splicing variants of LRRFIP2 was closely correlated with that of ESRP1. Surprisingly, ectopic expression of the mesenchymal isoform of LRRFIP2 (variant 3) dramatically increased liver metastasis of gastric cancer cells, whereas deletion of exon 7 of LRRFIP2 by the CRISPR/Cas9 system caused an isoform switch, leading to marked suppression of liver metastasis. Mechanistically, the epithelial LRRFIP2 isoform (variant 2) inhibited the oncogenic function of coactivator-associated arginine methyltransferase 1 (CARM1) through interaction. Taken together, our data reveals a mechanism of LRRFIP2 isoform switches in gastric cancer with important implication for cancer metastasis.
Collapse
Affiliation(s)
- Jihee Lee
- GILO Institute, GILO Foundation, Seoul, 06668 Korea ,grid.410886.30000 0004 0647 3511Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Gyeonggi-do 13488 Korea
| | | | - Junil Kim
- grid.263765.30000 0004 0533 3568School of Systems Biomedical Science, Soongsil University, Seoul, 06978 Korea
| | - Eunji Hong
- GILO Institute, GILO Foundation, Seoul, 06668 Korea ,grid.264381.a0000 0001 2181 989XDepartment of Biomedical Science, College of Life Science, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 Korea
| | - Jeeyun Lee
- grid.264381.a0000 0001 2181 989XDivision of Hematology-Oncology, Department of Medicine, Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, 06351 Korea
| | - Hee Jin Cho
- grid.258803.40000 0001 0661 1556Department of Biomedical Convergence Science and Technology, Kyungpook National University, Daegu, 41566 Korea ,grid.414964.a0000 0001 0640 5613Innovative Therapeutic Research Center, Precision Medicine Research Institute, Samsung Medical Center, Seoul, 06531 Republic of Korea
| | - Jinah Park
- GILO Institute, GILO Foundation, Seoul, 06668 Korea
| | - Minjung Son
- GILO Institute, GILO Foundation, Seoul, 06668 Korea ,grid.264381.a0000 0001 2181 989XDepartment of Biomedical Science, College of Life Science, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 Korea
| | - Sihyun Park
- GILO Institute, GILO Foundation, Seoul, 06668 Korea
| | | | | | - Kyung-Soon Park
- grid.410886.30000 0004 0647 3511Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Gyeonggi-do 13488 Korea
| | - Han-Kwang Yang
- grid.412484.f0000 0001 0302 820XDepartment of Surgery, Seoul National University Hospital, Seoul, 03080 Korea ,grid.31501.360000 0004 0470 5905Cancer Research Institute, Seoul National University, Seoul, 03080 Korea
| | | | - Seong-Jin Kim
- GILO Institute, GILO Foundation, Seoul, 06668 Korea ,Medpacto Inc., Seoul, 06668 Korea
| |
Collapse
|
12
|
Mansour B, Donati M, Michalová K, Michal M, Ptáková N, Hájková V, Michal M. Epithelioid fibrous histiocytoma: three diagnostically challenging cases with novel ALK gene fusions, unusual storiform growth pattern, and a prominent spindled morphology. Virchows Arch 2022; 481:751-757. [PMID: 36171493 DOI: 10.1007/s00428-022-03418-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 10/14/2022]
Abstract
Epithelioid fibrous histiocytoma (EFH) is a distinctive cutaneous neoplasm with a relatively variable morphological appearance. Recently, it has been shown that this tumor is molecularly characterized by ALK gene fusions. We report three EFHs with unusual histological presentation represented by a prominent/predominant spindle cell proliferation arranged in a variably storiform/whirling architectural pattern with or without stromal sclerosis. One of the cases closely resembled cellular fibrous histiocytoma. All three cases were immunohistochemically ALK-positive and were analyzed for ALK gene rearrangements using a next-generation sequencing-based assay (FusionPlex Sarcoma Kit, ArcherDx). Three novel fusions, namely AP3D1::ALK, COL1A::ALK, and LRRFIP2::ALK, were detected and further confirmed by FISH in all 3 cases and RT-PCR in 1 case. All patients were elderly (62-63 years) and presented with a solitary polypoid lesion on the extremities. The awareness of these morphological variants is important since it entertains a wide and slightly different differential diagnosis than conventional EFH. We also presented evidence that a clear separation of EFH from BFH in all cases may not be as straightforward as previously thought. The consistent ALK immunoexpression and the continually expanding scale of ALK gene rearrangements provide a useful tool to distinguish EFH from its histologic mimics.
Collapse
Affiliation(s)
- Boulos Mansour
- Department of Pathology, University Hospital Campus Bio-Medico, Rome, Italy.
| | - Michele Donati
- Department of Pathology, University Hospital Campus Bio-Medico, Rome, Italy
| | - Květoslava Michalová
- Bioptical Laboratory, Ltd., Pilsen, Czech Republic.,Department of Pathology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Michal Michal
- Bioptical Laboratory, Ltd., Pilsen, Czech Republic.,Department of Pathology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | | | | | - Michael Michal
- Bioptical Laboratory, Ltd., Pilsen, Czech Republic.,Department of Pathology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| |
Collapse
|
13
|
Deng G, Li C, Chen L, Xing C, Fu C, Qian C, Liu X, Wang HY, Zhu M, Wang RF. BECN2 (beclin 2) Negatively Regulates Inflammasome Sensors Through ATG9A-Dependent but ATG16L1- and LC3-Independent Non-Canonical Autophagy. Autophagy 2022; 18:340-356. [PMID: 34152938 PMCID: PMC8942444 DOI: 10.1080/15548627.2021.1934270] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 05/06/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022] Open
Abstract
Macroautophagy/autophagy-related proteins regulate infectious and inflammatory diseases in autophagy-dependent or -independent manner. However, the role of a newly identified mammalian-specific autophagy protein-BECN2 (beclin 2) in innate immune regulation is largely unknown. Here we showed that loss of BECN2 enhanced the activities of NLRP3, AIM2, NLRP1, and NLRC4 inflammasomes upon ligand stimulations. Mechanistically, BECN2 interacted with inflammasome sensors and mediated their degradation through a ULK1- and ATG9A-dependent, but BECN1-WIPI2-ATG16L1-LC3-independent, non-canonical autophagic pathway. BECN2 recruited inflammasome sensors on ATG9A+ vesicles to form a complex (BECN2-ATG9A-sensors) upon ULK1 activation. Three soluble NSF attachment protein receptor (SNARE) proteins (SEC22A, STX5, and STX6) were further shown to mediate the BECN2-ATG9A-dependent inflammasome sensor degradation. Loss of BECN2 promoted alum-induced peritonitis, which could be rescued by the ablation of CASP1 in Becn2-deficient mice. Hence, BECN2 negatively regulated inflammasome activation to control inflammation, serving as a potential therapeutic target for the treatment of infectious and inflammatory diseases.Abbreviations: AIM2: absent in melanoma 2; ATG: autophagy related; BECN1: beclin 1; BMDC: bone marrow-derived dendritic cells; BMDM: bone marrow-derived macrophages; CASP1: caspase 1; CQ: chloroquine; gMDSC: granulocytic myeloid-derived suppressor cells; IL: interleukin; LPS: lipopolysaccharide; MAP1LC3B: microtubule associated protein 1 light chain 3 beta; mMDSC: monocytic myeloid-derived suppressor cells; NLRC4: NLR family CARD domain containing 4; NLRP1: NLR family pyrin domain containing 1; NLRP3: NLR family pyrin domain containing 3; PECs: peritoneal exudate cells; PYCARD/ASC: apoptosis-associated speck-like protein containing a caspase activation and recruitment domain; SNAREs: soluble NSF attachment protein receptors; STX5: syntaxin 5; STX6: syntaxin 6; ULK1: unc-51 like autophagy activating kinase 1; WIPI: WD repeat domain, phosphoinositide interacting.
Collapse
Affiliation(s)
- Guangtong Deng
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chaoran Li
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lang Chen
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Changsheng Xing
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Chuntang Fu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Chen Qian
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Xin Liu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Helen Y. Wang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Motao Zhu
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Rong-Fu Wang
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Pediatrics, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| |
Collapse
|
14
|
Xu J, Wang P, Li Z, Li Z, Han D, Wen M, Zhao Q, Zhang L, Ma Y, Liu W, Jiang M, Zhang X, Cao X. IRF3-binding lncRNA-ISIR strengthens interferon production in viral infection and autoinflammation. Cell Rep 2021; 37:109926. [PMID: 34731629 DOI: 10.1016/j.celrep.2021.109926] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/26/2021] [Accepted: 10/12/2021] [Indexed: 11/17/2022] Open
Abstract
Interferon regulatory factor 3 (IRF3) is an essential transductor for initiation of many immune responses. Here, we show that lncRNA-ISIR directly binds IRF3 to promote its phosphorylation, dimerization, and nuclear translocation, along with enhanced target gene productions. In vivo lncRNA-ISIR deficiency results in reduced IFN production, uncontrolled viral replication, and increased mortality. The human homolog, AK131315, also binds IRF3 and promotes its activation. More important, AK131315 expression is positively correlated with type I interferon (IFN-I) level and severity in patients with lupus. Mechanistically, in resting cells, IRF3 is bound to suppressor protein Flightless-1 (Fli-1), which keeps its inactive state. Upon infection, IFN-I-induced lncRNA-ISIR binds IRF3 at DNA-binding domain in cytoplasm and removes Fli-1's association from IRF3, consequently facilitating IRF3 activation. Our results demonstrate that IFN-I-inducible lncRNA-ISIR feedback strengthens IRF3 activation by removing suppressive Fli-1 in immune responses, revealing a method of lncRNA-mediated modulation of transcription factor (TF) activation.
Collapse
Affiliation(s)
- Junfang Xu
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China; Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Pin Wang
- National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Medical University, Shanghai 200433, China.
| | - Zemeng Li
- National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Medical University, Shanghai 200433, China
| | - Zhiqing Li
- National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Medical University, Shanghai 200433, China
| | - Dan Han
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China; National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Medical University, Shanghai 200433, China
| | - Mingyue Wen
- National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Medical University, Shanghai 200433, China
| | - Qihang Zhao
- National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Medical University, Shanghai 200433, China
| | - Lianfeng Zhang
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Yuanwu Ma
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Wei Liu
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Minghong Jiang
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Xuan Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xuetao Cao
- Department of Immunology, Center for Immunotherapy, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China; Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, China; National Key Laboratory of Medical Immunology, Institute of Immunology, Navy Medical University, Shanghai 200433, China; Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing 100021, China.
| |
Collapse
|
15
|
Zhang Y, Yang W, Li W, Zhao Y. NLRP3 Inflammasome: Checkpoint Connecting Innate and Adaptive Immunity in Autoimmune Diseases. Front Immunol 2021; 12:732933. [PMID: 34707607 PMCID: PMC8542789 DOI: 10.3389/fimmu.2021.732933] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
Autoimmune diseases are a broad spectrum of human diseases that are characterized by the breakdown of immune tolerance and the production of autoantibodies. Recently, dysfunction of innate and adaptive immunity is considered to be a key step in the initiation and maintenance of autoimmune diseases. NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a multimeric protein complex, which can detect exogenous pathogen irritants and endogenous danger signals. The main function of NLRP3 inflammasome is to promote secretion of interleukin (IL)-1β and IL-18, and pyroptosis mediated by caspase-1. Served as a checkpoint in innate and adaptive immunity, aberrant activation and regulation of NLRP3 inflammasome plays an important role in the pathogenesis of autoimmune diseases. This paper reviewed the roles of NLRP3 inflammasome in autoimmune diseases, which shows NLRP3 inflammasome may be a potential target for autoimmune diseases deserved further study.
Collapse
Affiliation(s)
- Yiwen Zhang
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenlin Yang
- Department of Dermatology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wangen Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yunjuan Zhao
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| |
Collapse
|
16
|
Cai B, Zhao J, Zhang Y, Liu Y, Ma C, Yi F, Zheng Y, Zhang L, Chen T, Liu H, Liu B, Gao C. USP5 attenuates NLRP3 inflammasome activation by promoting autophagic degradation of NLRP3. Autophagy 2021; 18:990-1004. [PMID: 34486483 DOI: 10.1080/15548627.2021.1965426] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
ABBREVIATIONS 3-MA: 3-methyladenine; AIM2: absent in melanoma 2; ATG5: autophagy related 5; BafA1: bafilomycin A1; CASP1: caspase 1; CHX: cycloheximide; Co-IP: co-immunoprecipitation; CQ: chloroquine; DUBs: deubiquitinases; IL1B/IL-1β: interleukin 1 beta; LAMP1: lysosomal associated membrane protein 1; LPS: lipopolysaccharide; MARCHF7/MARCH7: membrane associated RING-CH-type finger 7; NFKB/NF-κB: nuclear factor kappa B; Nig.: nigericin; NLRC4: NLR family CARD domain containing 4; NLRP3: NLR family pyrin domain containing 3; PECs: peritoneal exudate cells; PMN: polymorphonuclear; PMs: peritoneal macrophages; PYCARD/ASC: PYD and CARD domain containing; TLRs: toll like receptors; TNF/TNF-α: tumor necrosis factor; Ub: ubiquitin; USP5: ubiquitin specific peptidase 5; WT: wild type.
Collapse
Affiliation(s)
- Baoshan Cai
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Jian Zhao
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Yuling Zhang
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Yaxing Liu
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Chunhong Ma
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Fan Yi
- Department of Pharmacology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Yi Zheng
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Lei Zhang
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Tian Chen
- Department of Pathogenic Biology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Huiqing Liu
- Department of Pharmacology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Bingyu Liu
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| | - Chengjiang Gao
- Key Laboratory of Infection and Immunity of Shandong Province & Department of Immunology, School of Biomedical Sciences, Shandong University, Jinan, China
| |
Collapse
|
17
|
Zhang Q, Yu J, Chen Q, Yan H, Du H, Luo W. Regulation of pathophysiological and tissue regenerative functions of MSCs mediated via the WNT signaling pathway (Review). Mol Med Rep 2021; 24:648. [PMID: 34278470 PMCID: PMC8299209 DOI: 10.3892/mmr.2021.12287] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 06/22/2021] [Indexed: 12/18/2022] Open
Abstract
Tissues have remarkable natural capabilities to regenerate for the purpose of physiological turnover and repair of damage. Adult mesenchymal stem cells (MSCs) are well known for their unique self-renewal ability, pluripotency, homing potential, paracrine effects and immunomodulation. Advanced research of the unique properties of MSCs have opened up new horizons for tissue regenerative therapies. However, certain drawbacks of the application of MSCs, such as the low survival rate of transplanted MSCs, unsatisfactory efficiency and even failure to regenerate under an unbalanced microenvironment, are concerning with regards to their wider therapeutic applications. The activity of stem cells is mainly regulated by the anatomical niche; where they are placed during their clinical and therapeutic applications. Crosstalk between various niche signals maintains MSCs in homeostasis, in which the WNT signaling pathway plays vital roles. Several external or internal stimuli have been reported to interrupt the normal bioactivity of stem cells. The irreversible tissue loss that occurs during infection at the site of tissue grafting suggests an inhibitory effect mediated by microbial infections within MSC niches. In addition, MSC-seeded tissue engineering success is difficult in various tissues, when sites of injury are under the effects of a severe infection despite the immunomodulatory properties of MSCs. In the present review, the current understanding of the way in which WNT signaling regulates MSC activity modification under physiological and pathological conditions was summarized. An effort was also made to illustrate parts of the underlying mechanism, including the inflammatory factors and their interactions with the regulatory WNT signaling pathway, aiming to promote the clinical translation of MSC-based therapy.
Collapse
Affiliation(s)
- Qingtao Zhang
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Jian Yu
- Department of Stomatology, Zhejiang Hospital, Hangzhou, Zhejiang 310030, P.R. China
| | - Qiuqiu Chen
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Honghai Yan
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Hongjiang Du
- Department of Stomatology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310085, P.R. China
| | - Wenjing Luo
- Department of General Dentistry, Boston University Henry M. Goldman School of Dental Medicine, Boston, MA 02118, USA
| |
Collapse
|
18
|
Gong Y, Liu Y, Wang T, Li Z, Gao L, Chen H, Shu Y, Li Y, Xu H, Zhou Z, Dai L. Age-Associated Proteomic Signatures and Potential Clinically Actionable Targets of Colorectal Cancer. Mol Cell Proteomics 2021; 20:100115. [PMID: 34129943 PMCID: PMC8441843 DOI: 10.1016/j.mcpro.2021.100115] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 05/04/2021] [Accepted: 06/08/2021] [Indexed: 02/06/2023] Open
Abstract
The occurrence and prevalence of colorectal cancer (CRC) is closely associated with age. More than 90% of patients with CRC are diagnosed after 50 years of age. However, CRC incidence of young individuals has been increasing since 1990s, whereas the overall CRC frequency is declining. Distinct overall survival rates between young and aged patients with CRC have been established. Tremendous efforts have been made to clarify the underlying mechanisms of age-dependent clinical differences, but it still remains elusive. Here, we performed proteomic profiling of 50 patients with CRC and revealed proteomic signatures of CRC across age groups. Gene set enrichment analysis showed that distinct age-dependent clinical outcomes might mainly attribute to varied MYC targets V1/V2, E2F targets and G2M checkpoint gene sets, which were associated with cancer cell proliferation, cell apoptosis, tumor growth, and tumor metastasis. Multiple linear regression analysis revealed a large number of functional proteins, such as NOP2, CSE1L, NHP2, NOC2L and CDK1, with adjusted expression significantly correlated with age (p < 0.05). Among them, NHP2 is a core component of the telomerase complex associated with age. High NHP2 expression predicted poor overall survival, with a more significant correlation in aged patients with CRC. Knockdown of NHP2 significantly suppressed cancer cell proliferation. In addition, we revealed some age-related potential clinically actionable targets, such as PSEN1, TSPO, and CDK1, which might be more suitable for patients with late-onset CRC. Collectively, this study identifies age-associated proteomic signatures and potential therapeutic targets of CRC and may help make a precise decision on CRC treatment. The proteomic signatures of early-onset CRC are disclosed. Alterations of some proteins between cancerous and normal tissues are age-correlated. NHP2, overexpressed in tumors especially in aged patients, predicts poor prognosis. Potential age-dependent druggable targets and their inhibitors are summarized.
Collapse
Affiliation(s)
- Yanqiu Gong
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yu Liu
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Tian Wang
- Life Science Mass Spectrometry Service Department, Thermo Fisher Scientific (China) Co, Chengdu, China
| | - Zhigui Li
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Li Gao
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Haining Chen
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yang Shu
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Yuan Li
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Heng Xu
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Zongguang Zhou
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China.
| | - Lunzhi Dai
- Department of Gastrointestinal Surgery, National Clinical Research Center for Geriatrics and Department of General Practice, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, China.
| |
Collapse
|
19
|
Qin Q, Shou J, Li M, Gu M, Meng Z, Xu P, Meng H, Wang X. Stk24 protects against obesity-associated metabolic disorders by disrupting the NLRP3 inflammasome. Cell Rep 2021; 35:109161. [PMID: 34038725 DOI: 10.1016/j.celrep.2021.109161] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 11/27/2020] [Accepted: 04/29/2021] [Indexed: 12/26/2022] Open
Abstract
Adipose tissue macrophages (ATMs) regulate the occurrence of obesity and its related diseases. Here, we found that serine/threonine protein kinase 24 (Stk24) expression is downregulated significantly in ATMs in obese subjects or obese subjects with type 2 diabetes and mice fed a high-fat diet (HFD). We further identified that glucolipotoxicity downregulated Stk24 expression in ATMs. Stk24-deficient mice develop severe HFD-induced metabolic disorders and insulin insensitivity. Mechanistically, Stk24 intervenes in NLRP3 inflammasome assembly in ATMs by associating directly with NLRP3, decreasing interleukin-1β (IL-1β) secretion. Accordingly, Stk24 deficiency in the hematopoietic system promotes NLRP3 inflammasome activation, which contributes to exacerbation of metabolic disorders. Intriguingly, Stk24 expression correlates negatively with body mass index (BMI) and the levels of glucose, cholesterol, triglycerides, and low-density lipoprotein in human subjects. These findings provide insights into the function and clinical implications of Stk24 in obesity-mediated metabolic disorders.
Collapse
Affiliation(s)
- Qiang Qin
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jia'nan Shou
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Mengjie Li
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Meidi Gu
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Zhuoxian Meng
- Department of Pathology and Pathophysiology, Key Laboratory of Disease Proteomics of Zhejiang Province, School of Medicine, Chronic Disease Research Institute of School of Public Health, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Pinglong Xu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hua Meng
- Department of General Surgery, China-Japan Friendship Hospital, Beijing 100029, China.
| | - Xiaojian Wang
- Institute of Immunology and Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| |
Collapse
|
20
|
Qin Q, Liu H, Shou J, Jiang Y, Yu H, Wang X. The inhibitor effect of RKIP on inflammasome activation and inflammasome-dependent diseases. Cell Mol Immunol 2021; 18:992-1004. [PMID: 32901127 PMCID: PMC8115060 DOI: 10.1038/s41423-020-00525-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/31/2020] [Indexed: 01/03/2023] Open
Abstract
Aberrant inflammasome activation contributes to the pathogenesis of various human diseases, including atherosclerosis, gout, and metabolic disorders. Elucidation of the underlying mechanism involved in the negative regulation of the inflammasome is important for developing new therapeutic targets for these diseases. Here, we showed that Raf kinase inhibitor protein (RKIP) negatively regulates the activation of the NLRP1, NLRP3, and NLRC4 inflammasomes. RKIP deficiency enhanced caspase-1 activation and IL-1β secretion via NLRP1, NLRP3, and NLRC4 inflammasome activation in primary macrophages. The overexpression of RKIP in THP-1 cells inhibited NLRP1, NLRP3, and NLRC4 inflammasome activation. RKIP-deficient mice showed increased sensitivity to Alum-induced peritonitis and Salmonella typhimurium-induced inflammation, indicating that RKIP inhibits NLRP3 and NLRC4 inflammasome activation in vivo. Mechanistically, RKIP directly binds to apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC) and competes with NLRP1, NLRP3, or NLRC4 to interact with ASC, thus interrupting inflammasome assembly and activation. The depletion of RKIP aggravated inflammasome-related diseases such as monosodium urate (MSU)-induced gouty arthritis and high-fat diet (HFD)-induced metabolic disorders. Furthermore, the expression of RKIP was substantially downregulated in patients with gouty arthritis or type 2 diabetes (T2D) compared to healthy controls. Collectively, our findings suggest that RKIP negatively regulates NLRP1, NLRP3, and NLRC4 inflammasome activation and is a potential therapeutic target for the treatment of inflammasome-related diseases.
Collapse
MESH Headings
- Adaptor Proteins, Signal Transducing/antagonists & inhibitors
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Apoptosis Regulatory Proteins/antagonists & inhibitors
- Apoptosis Regulatory Proteins/genetics
- Apoptosis Regulatory Proteins/metabolism
- Arthritis, Gouty/immunology
- Arthritis, Gouty/metabolism
- Arthritis, Gouty/pathology
- CARD Signaling Adaptor Proteins/antagonists & inhibitors
- CARD Signaling Adaptor Proteins/genetics
- CARD Signaling Adaptor Proteins/metabolism
- Calcium-Binding Proteins/antagonists & inhibitors
- Calcium-Binding Proteins/genetics
- Calcium-Binding Proteins/metabolism
- Case-Control Studies
- Diabetes Mellitus, Type 2/immunology
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Humans
- Inflammasomes/immunology
- Macrophages/immunology
- Mice
- Mice, Inbred C57BL
- Peritonitis/immunology
- Peritonitis/metabolism
- Peritonitis/pathology
- Phosphatidylethanolamine Binding Protein/genetics
- Phosphatidylethanolamine Binding Protein/metabolism
- Phosphatidylethanolamine Binding Protein/physiology
- Receptors, Cell Surface/antagonists & inhibitors
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
Collapse
Affiliation(s)
- Qiang Qin
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, PR China
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou, 310058, PR China
| | - Huan Liu
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou, 310058, PR China
| | - Jia'nan Shou
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou, 310058, PR China
| | - Yu Jiang
- Department of Clinical Laboratory Medicine, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, PR China
| | - Hong Yu
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, PR China.
| | - Xiaojian Wang
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, PR China.
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou, 310058, PR China.
| |
Collapse
|
21
|
Strudwick XL, Cowin AJ. Multifunctional Roles of the Actin-Binding Protein Flightless I in Inflammation, Cancer and Wound Healing. Front Cell Dev Biol 2020; 8:603508. [PMID: 33330501 PMCID: PMC7732498 DOI: 10.3389/fcell.2020.603508] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 10/30/2020] [Indexed: 11/20/2022] Open
Abstract
Flightless I is an actin-binding member of the gelsolin family of actin-remodeling proteins that inhibits actin polymerization but does not possess actin severing ability. Flightless I functions as a regulator of many cellular processes including proliferation, differentiation, apoptosis, and migration all of which are important for many physiological processes including wound repair, cancer progression and inflammation. More than simply facilitating cytoskeletal rearrangements, Flightless I has other important roles in the regulation of gene transcription within the nucleus where it interacts with nuclear hormone receptors to modulate cellular activities. In conjunction with key binding partners Leucine rich repeat in the Flightless I interaction proteins (LRRFIP)1/2, Flightless I acts both synergistically and competitively to regulate a wide range of cellular signaling including interacting with two of the most important inflammatory pathways, the NLRP3 inflammasome and the MyD88-TLR4 pathways. In this review we outline the current knowledge about this important cytoskeletal protein and describe its many functions across a range of health conditions and pathologies. We provide perspectives for future development of Flightless I as a potential target for clinical translation and insights into potential therapeutic approaches to manipulate Flightless I functions.
Collapse
Affiliation(s)
- Xanthe L Strudwick
- Regenerative Medicine, Future Industries Institute, University of South Australia, Mawson Lakes, SA, Australia
| | - Allison J Cowin
- Regenerative Medicine, Future Industries Institute, University of South Australia, Mawson Lakes, SA, Australia
| |
Collapse
|
22
|
LeBlanc RE, Lefferts JA, Baker ML, Linos KD. Novel LRRFIP2-RAF1 fusion identified in an acral melanoma: A review of the literature on melanocytic proliferations with RAF1 fusions and the potential therapeutic implications. J Cutan Pathol 2020; 47:1181-1186. [PMID: 32700768 DOI: 10.1111/cup.13817] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 11/29/2022]
Abstract
A small subset of cutaneous melanomas harbor oncogenic gene fusions, which could potentially serve as therapeutic targets for patients with advanced disease as novel therapies are developed. Fusions involving RAF1 are exceedingly rare in melanocytic neoplasms, occurring in less than 1% of melanomas, and usually arise in tumors that are wild type for BRAF, NRAS, and NF1. We describe herein a case of acral melanoma with two satellite metastases and sentinel lymph node involvement. The melanoma had a concomitant KIT variant and LRRFIP2-RAF1 fusion. This constellation of molecular findings has not been reported previously in melanoma. We review the existing literature on melanocytic neoplasms with RAF1 fusions and discuss the potential clinical implications of this genetic event.
Collapse
Affiliation(s)
- Robert E LeBlanc
- Department of Pathology and Laboratory Medicine, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Joel A Lefferts
- Department of Pathology and Laboratory Medicine, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Michael L Baker
- Department of Pathology and Laboratory Medicine, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Konstantinos D Linos
- Department of Pathology and Laboratory Medicine, Geisel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| |
Collapse
|
23
|
Flightless-1 inhibits ER stress-induced apoptosis in colorectal cancer cells by regulating Ca 2+ homeostasis. Exp Mol Med 2020; 52:940-950. [PMID: 32504039 PMCID: PMC7338537 DOI: 10.1038/s12276-020-0448-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 02/06/2023] Open
Abstract
The endoplasmic reticulum (ER) stress response is an adaptive mechanism that is activated upon disruption of ER homeostasis and protects the cells against certain harmful environmental stimuli. However, critical and prolonged cell stress triggers cell death. In this study, we demonstrate that Flightless-1 (FliI) regulates ER stress-induced apoptosis in colon cancer cells by modulating Ca2+ homeostasis. FliI was highly expressed in both colon cell lines and colorectal cancer mouse models. In a mouse xenograft model using CT26 mouse colorectal cancer cells, tumor formation was slowed due to elevated levels of apoptosis in FliI-knockdown (FliI-KD) cells. FliI-KD cells treated with ER stress inducers, thapsigargin (TG), and tunicamycin exhibited activation of the unfolded protein response (UPR) and induction of UPR-related gene expression, which eventually triggered apoptosis. FliI-KD increased the intracellular Ca2+ concentration, and this upregulation was caused by accelerated ER-to-cytosolic efflux of Ca2+. The increase in intracellular Ca2+ concentration was significantly blocked by dantrolene and tetracaine, inhibitors of ryanodine receptors (RyRs). Dantrolene inhibited TG-induced ER stress and decreased the rate of apoptosis in FliI-KD CT26 cells. Finally, we found that knockdown of FliI decreased the levels of sorcin and ER Ca2+ and that TG-induced ER stress was recovered by overexpression of sorcin in FliI-KD cells. Taken together, these results suggest that FliI regulates sorcin expression, which modulates Ca2+ homeostasis in the ER through RyRs. Our findings reveal a novel mechanism by which FliI influences Ca2+ homeostasis and cell survival during ER stress. A cytoskeletal protein that helps tumors avoid cell death offers a promising new drug target for fighting cancer. A team led by Jang Hyun Choi and Sun Sil Choi of the Ulsan National Institute of Science and Technology, South Korea, detailed how a protein called Flightless I (FliI) that normally regulates the remodeling of structural filaments in the cell can, in colorectal cancer cells, serve as a tumor promoter through its action on calcium levels. Typically, cells respond to chronic stress by altering calcium signaling to promote their own death. In tumors, however, FliI maintains normal calcium levels to enhance cell survival even in the face of chemotherapy and other stressful stimuli. Suppressing FliI activity could thus help sensitize cancer cells to other stress- and death-inducing drug regimens.
Collapse
|
24
|
Abstract
Caspases are a family of conserved cysteine proteases that play key roles in programmed cell death and inflammation. In multicellular organisms, caspases are activated via macromolecular signaling complexes that bring inactive procaspases together and promote their proximity-induced autoactivation and proteolytic processing. Activation of caspases ultimately results in programmed execution of cell death, and the nature of this cell death is determined by the specific caspases involved. Pioneering new research has unraveled distinct roles and cross talk of caspases in the regulation of programmed cell death, inflammation, and innate immune responses. In-depth understanding of these mechanisms is essential to foster the development of precise therapeutic targets to treat autoinflammatory disorders, infectious diseases, and cancer. This review focuses on mechanisms governing caspase activation and programmed cell death with special emphasis on the recent progress in caspase cross talk and caspase-driven gasdermin D-induced pyroptosis.
Collapse
Affiliation(s)
- Sannula Kesavardhana
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA; , ,
| | - R K Subbarao Malireddi
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA; , ,
| | | |
Collapse
|
25
|
Zhang Y, Rong H, Zhang FX, Wu K, Mu L, Meng J, Xiao B, Zamponi GW, Shi Y. A Membrane Potential- and Calpain-Dependent Reversal of Caspase-1 Inhibition Regulates Canonical NLRP3 Inflammasome. Cell Rep 2020; 24:2356-2369.e5. [PMID: 30157429 PMCID: PMC6201321 DOI: 10.1016/j.celrep.2018.07.098] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 06/06/2018] [Accepted: 07/27/2018] [Indexed: 02/06/2023] Open
Abstract
The NLRP3 inflammasome senses a range of cellular disturbances, although no consensus exists regarding a common mechanism. Canonical NLRP3 activation is blocked by high extracellular K+, regardless of the activating signal. We report here that canonical NLRP3 activation leads to Ca2+ flux and increased calpain activity. Activated calpain releases a pool of Caspase-1 sequestered by the cytoskeleton to regulate NLRP3 activation. Using electrophysiological recording, we found that resting-state eukaryotic membrane potential (MP) is required for this calpain activity, and depolarization by high extracellular K+ or artificial hyperpolarization results in the inhibition of calpain. Therefore, the MP/Ca2+/calpain/ Caspase-1 axis acts as an independent regulatory mechanism for NLRP3 activity. This finding provides mechanistic insight into high K+-mediated inhibition of NLRP3 activation, and it offers an alternative model of NLRP3 inflammasome activation that does not involve K+ efflux. Zhang et al. find that, in canonical NLRP inflammasome activation, calpain activity is essential for releasing caspase-1 from flightless-1 and the cytoskeleton. Membrane depolarization, such as under high extracellular K+ or hyperpolarization, impairs this activity. This work provides insight into extracellular K+ -mediated inhibition of the NLRP3 inflammasome.
Collapse
Affiliation(s)
- Yifei Zhang
- Institute for Immunology, Department of Basic Medical Sciences, School of Medicine, Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Hua Rong
- Institute for Immunology, Department of Basic Medical Sciences, School of Medicine, Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Fang-Xiong Zhang
- Department of Physiology and Pharmacology, Cumming School of Medicine and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Kun Wu
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Libing Mu
- Institute for Immunology, Department of Basic Medical Sciences, School of Medicine, Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Junchen Meng
- Institute for Immunology, Department of Basic Medical Sciences, School of Medicine, Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China
| | - Bailong Xiao
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Gerald W Zamponi
- Department of Physiology and Pharmacology, Cumming School of Medicine and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Yan Shi
- Institute for Immunology, Department of Basic Medical Sciences, School of Medicine, Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China; Department of Microbiology, Immunology & Infectious Diseases and Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB T2N 4N1, Canada.
| |
Collapse
|
26
|
The pore-forming subunit Kir6.1 of the K-ATP channel negatively regulates the NLRP3 inflammasome to control insulin resistance by interacting with NLRP3. Exp Mol Med 2019; 51:1-13. [PMID: 31387986 PMCID: PMC6802643 DOI: 10.1038/s12276-019-0291-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/21/2019] [Accepted: 04/17/2019] [Indexed: 01/23/2023] Open
Abstract
Excessive activation of the NLRP3 inflammasome is a key component contributing to the pathogenesis of various inflammatory diseases. However, the molecular mechanisms underlying its activation and regulation remain poorly defined. The objective of this study was to explore the possible function of the K+ channel pore-forming subunit Kir6.1 in regulating NLRP3 inflammasome activation and insulin resistance. Here, we demonstrate that Kir6.1 depletion markedly activates the NLRP3 inflammasome, whereas enhanced Kir6.1 expression produces opposing effects both in mice in vivo and in primary cells in vitro. We also demonstrate that Kir6.1 controls insulin resistance by inhibiting NLRP3 inflammasome activation in mice. We further show that Kir6.1 physically associates with NLRP3 and thus inhibits the interactions between the NLRP3 inflammasome subunits. Our results reveal a previously unrecognized function of Kir6.1 as a negative regulator of the NLRP3 inflammasome and insulin resistance, which is mediated by virtue of its ability to inhibit NLRP3 inflammasome assembly. These data provide novel insights into the regulatory mechanism of NLRP3 inflammasome activation and suggest that Kir6.1 is a promising therapeutic target for inflammasome-mediated inflammatory diseases.
Collapse
|
27
|
Lin Y, Wang S, Yang Z, Gao L, Zhou Z, Yu P, Wu B. Bilirubin alleviates alum-induced peritonitis through inactivation of NLRP3 inflammasome. Biomed Pharmacother 2019; 116:108973. [PMID: 31121485 DOI: 10.1016/j.biopha.2019.108973] [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: 01/30/2019] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 11/29/2022] Open
Abstract
Bilirubin is an endogenous substance derived from heme catabolism. In this study, we aimed to assess the anti-inflammatory activity of bilirubin, and to determine the mechanism thereof. The anti-inflammatory activity of bilirubin was evaluated using lipopolysaccharide (LPS)-treated peritoneal macrophages (PMs) and Raw264.7 cells, and mice with alum-induced peritonitis. The mRNA and proteins of NOD-like receptor family pyrin domain containing 3 (Nlrp3) and inflammatory cytokines were determined using qPCR and Western blotting, respectively. Distribution of phosphorylated (p) p65 [a NF-κB (nuclear factor-κB) subunit] in the cytoplasm and nucleus were evaluated by immunofluorescence analysis and electrophoretic mobility shift assay. Bilirubin prior to LPS treatment decreased protein expressions of Nlrp3, pro-interleukin (IL)-1β and mature IL-1β in PMs, whereas bilirubin post LPS treatment showed no effects. Bilirubin prior to LPS treatment dose-dependently repressed expressions of Nlrp3 and IL-1β, and inhibited translocation of p-p65 to nucleus in Raw264.7 cells. Bilirubin treatment decreased myeloperoxidase activity and reduced the levels of inflammatory cytokines (i.e., IL-1β, TNFα and IL-6) in lavage fluid in mice with alum-induced peritonitis. This was accompanied by a lower mortality rate. In addition, the mRNAs of Nlrp3 and IL-1β in peritoneal exudates cells were decreased, and the levels of p-p65 and mature IL-1β proteins were reduced. In conclusion, bilirubin acted on inflammation and alleviated alum-induced peritonitis through inactivation of Nlrp3 inflammasome.
Collapse
Affiliation(s)
- Yanke Lin
- Reserach Center for Biopharmaceutics and Pharmacokinetics, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Shuai Wang
- Reserach Center for Biopharmaceutics and Pharmacokinetics, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy , Jinan University, Guangzhou, 510632, China
| | - Zemin Yang
- Reserach Center for Biopharmaceutics and Pharmacokinetics, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Lu Gao
- Reserach Center for Biopharmaceutics and Pharmacokinetics, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Ziyue Zhou
- Reserach Center for Biopharmaceutics and Pharmacokinetics, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Pei Yu
- Reserach Center for Biopharmaceutics and Pharmacokinetics, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy , Jinan University, Guangzhou, 510632, China.
| | - Baojian Wu
- Reserach Center for Biopharmaceutics and Pharmacokinetics, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy , Jinan University, Guangzhou, 510632, China.
| |
Collapse
|
28
|
Carpentier SJ, Ni M, Duggan JM, James RG, Cookson BT, Hamerman JA. The signaling adaptor BCAP inhibits NLRP3 and NLRC4 inflammasome activation in macrophages through interactions with Flightless-1. Sci Signal 2019; 12:12/581/eaau0615. [PMID: 31088976 DOI: 10.1126/scisignal.aau0615] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
B cell adaptor for phosphoinositide 3-kinase (PI3K) (BCAP) is a signaling adaptor that activates the PI3K pathway downstream of B cell receptor signaling in B cells and Toll-like receptor (TLR) signaling in macrophages. BCAP binds to the regulatory p85 subunit of class I PI3K and is a large, multidomain protein. We used proteomic analysis to identify other BCAP-interacting proteins in macrophages and found that BCAP specifically associated with the caspase-1 pseudosubstrate inhibitor Flightless-1 and its binding partner leucine-rich repeat flightless-interacting protein 2. Because these proteins inhibit the NLRP3 inflammasome, we investigated the role of BCAP in inflammasome function. Independent of its effects on TLR priming, BCAP inhibited NLRP3- and NLRC4-induced caspase-1 activation, cell death, and IL-1β release from macrophages. Accordingly, caspase-1-dependent clearance of a Yersinia pseudotuberculosis mutant was enhanced in BCAP-deficient mice. Mechanistically, BCAP delayed the recruitment and activation of pro-caspase-1 within the NLRP3/ASC preinflammasome through its association with Flightless-1. Thus, BCAP is a multifunctional signaling adaptor that inhibits key pathogen-sensing pathways in macrophages.
Collapse
Affiliation(s)
- Samuel J Carpentier
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Minjian Ni
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101, USA
| | - Jeffrey M Duggan
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101, USA.,Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Richard G James
- Seattle Children's Research Institute, Seattle, WA 98101, USA.,Department of Pediatrics, University of Washington, Seattle, WA 98195, USA
| | - Brad T Cookson
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA.,Department of Laboratory Medicine, University of Washington, Seattle, WA 98195, USA
| | - Jessica A Hamerman
- Immunology Program, Benaroya Research Institute, Seattle, WA 98101, USA. .,Department of Immunology, University of Washington, Seattle, WA 98109, USA
| |
Collapse
|
29
|
Tezcan G, Martynova EV, Gilazieva ZE, McIntyre A, Rizvanov AA, Khaiboullina SF. MicroRNA Post-transcriptional Regulation of the NLRP3 Inflammasome in Immunopathologies. Front Pharmacol 2019; 10:451. [PMID: 31118894 PMCID: PMC6504709 DOI: 10.3389/fphar.2019.00451] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 04/08/2019] [Indexed: 12/13/2022] Open
Abstract
Inflammation has a crucial role in protection against various pathogens. The inflammasome is an intracellular multiprotein signaling complex that is linked to pathogen sensing and initiation of the inflammatory response in physiological and pathological conditions. The most characterized inflammasome is the NLRP3 inflammasome, which is a known sensor of cell stress and is tightly regulated in resting cells. However, altered regulation of the NLRP3 inflammasome is found in several pathological conditions, including autoimmune disease and cancer. NLRP3 expression was shown to be post-transcriptionally regulated and multiple miRNA have been implicated in post-transcriptional regulation of the inflammasome. Therefore, in recent years, miRNA based post-transcriptional control of NLRP3 has become a focus of much research, especially as a potential therapeutic approach. In this review, we provide a summary of the recent investigations on the role of miRNA in the post-transcriptional control of the NLRP3 inflammasome, a key regulator of pro-inflammatory IL-1β and IL-18 cytokine production. Current approaches to targeting the inflammasome product were shown to be an effective treatment for diseases linked to NLRP3 overexpression. Although utilizing NLRP3 targeting miRNAs was shown to be a successful therapeutic approach in several animal models, their therapeutic application in patients remains to be determined.
Collapse
Affiliation(s)
- Gulcin Tezcan
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | | | - Zarema E. Gilazieva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Alan McIntyre
- Centre for Cancer Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Albert A. Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Svetlana F. Khaiboullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Department of Microbiology and Immunology, University of Nevada, Reno, Reno, NV, United States
| |
Collapse
|
30
|
Ren G, Zhang X, Xiao Y, Zhang W, Wang Y, Ma W, Wang X, Song P, Lai L, Chen H, Zhan Y, Zhang J, Yu M, Ge C, Li C, Yin R, Yang X. ABRO1 promotes NLRP3 inflammasome activation through regulation of NLRP3 deubiquitination. EMBO J 2019; 38:embj.2018100376. [PMID: 30787184 DOI: 10.15252/embj.2018100376] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 01/13/2019] [Accepted: 01/18/2019] [Indexed: 01/15/2023] Open
Abstract
Deubiquitination of NLRP3 has been suggested to contribute to inflammasome activation, but the roles and molecular mechanisms are still unclear. We here demonstrate that ABRO1, a subunit of the BRISC deubiquitinase complex, is necessary for optimal NLRP3-ASC complex formation, ASC oligomerization, caspase-1 activation, and IL-1β and IL-18 production upon treatment with NLRP3 ligands after the priming step, indicating that efficient NLRP3 activation requires ABRO1. Moreover, we report that ABRO1 deficiency results in a remarkable attenuation in the syndrome severity of NLRP3-associated inflammatory diseases, including MSU- and Alum-induced peritonitis and LPS-induced sepsis in mice. Mechanistic studies reveal that LPS priming induces ABRO1 binding to NLRP3 in an S194 phosphorylation-dependent manner, subsequently recruiting the BRISC to remove K63-linked ubiquitin chains of NLRP3 upon stimulation with activators. Furthermore, deficiency of BRCC3, the catalytically active component of BRISC, displays similar phenotypes to ABRO1 knockout mice. Our findings reveal an ABRO1-mediated regulatory signaling system that controls activation of the NLRP3 inflammasome and provide novel potential targets for treating NLRP3-associated inflammatory diseases.
Collapse
Affiliation(s)
- Guangming Ren
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Xuanyi Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Yang Xiao
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Wen Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Yu Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.,An Hui Medical University, Hefei, China
| | - Wenbing Ma
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Xiaohan Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Pan Song
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Lili Lai
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Hui Chen
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Yiqun Zhan
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Jianhong Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.,Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China
| | - Miao Yu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Changhui Ge
- Beijing Institute of Radiation Medicine, Beijing, China
| | - Changyan Li
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Ronghua Yin
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Xiaoming Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China .,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| |
Collapse
|
31
|
Chen Q, Zhou J, Zhang B, Chen Z, Luo Q, Song G. Cyclic Stretching Exacerbates Tendinitis by Enhancing NLRP3 Inflammasome Activity via F-Actin Depolymerization. Inflammation 2019; 41:1731-1743. [PMID: 29951874 DOI: 10.1007/s10753-018-0816-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Modern molecular techniques have highlighted the presence of inflammation throughout the spectrum of tendinopathy. Previous studies have suggested that excessive inflammation in the tendon is a major factor leading to poor clinical treatment. Furthermore, the NLRP3 inflammasome, as a new term, is closely associated with the pathogenesis of many diseases. In the present study, we examined whether the NLRP3 inflammasome contributes to the development of tendinitis and whether cyclic stretching plays a prominent role in inflammation in the tendon. In the present study, we showed that hydrogen peroxide (H2O2) remarkably enhances the expression and release of IL-1β, TNF-α, and IL-6. The maturation of IL-1β, induced by H2O2, depends on the activation of the NLRP3 inflammasome. Cyclic stretching enhances the maturation of IL-1β via promoting H2O2-induced NLRP3 inflammasome activation in tenocytes. Furthermore, we also found that the depolymerization of filamentous actin (F-actin) was required for cyclic stretching-enhanced NLRP3 inflammasome activation. The present study suggests that NLRP3 inflammasome plays an important regulatory role in the pathogenesis of tendinitis. Disruption of the cytoskeleton by cyclic stretching exerts a proinflammatory effect via further activating the NLRP3/IL-1β pathway and hence contributes to tendinitis. These results may provide theoretical support for a new treatment strategy for preventing excessive inflammation in the tendon.
Collapse
Affiliation(s)
- Qiufang Chen
- Key Laboratory of Biorheological Science and Technology, College of Bioengineering, Ministry of Education, Chongqing University, Chongqing, 400044, China
| | - Jun Zhou
- School of Life Science, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Bingyu Zhang
- Key Laboratory of Biorheological Science and Technology, College of Bioengineering, Ministry of Education, Chongqing University, Chongqing, 400044, China
| | - Zhe Chen
- Key Laboratory of Biorheological Science and Technology, College of Bioengineering, Ministry of Education, Chongqing University, Chongqing, 400044, China
| | - Qing Luo
- Key Laboratory of Biorheological Science and Technology, College of Bioengineering, Ministry of Education, Chongqing University, Chongqing, 400044, China
| | - Guanbin Song
- Key Laboratory of Biorheological Science and Technology, College of Bioengineering, Ministry of Education, Chongqing University, Chongqing, 400044, China.
| |
Collapse
|
32
|
Liu W, Guo W, Zhu Y, Peng S, Zheng W, Zhang C, Shao F, Zhu Y, Hang N, Kong L, Meng X, Xu Q, Sun Y. Targeting Peroxiredoxin 1 by a Curcumin Analogue, AI-44, Inhibits NLRP3 Inflammasome Activation and Attenuates Lipopolysaccharide-Induced Sepsis in Mice. THE JOURNAL OF IMMUNOLOGY 2018; 201:2403-2413. [DOI: 10.4049/jimmunol.1700796] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 08/03/2018] [Indexed: 12/22/2022]
|
33
|
He JP, Hou PP, Chen QT, Wang WJ, Sun XY, Yang PB, Li YP, Yao LM, Li X, Jiang XD, Chien KY, Zhang ZM, Wu QW, Cowin AJ, Wu Q, Chen HZ. Flightless-I Blocks p62-Mediated Recognition of LC3 to Impede Selective Autophagy and Promote Breast Cancer Progression. Cancer Res 2018; 78:4853-4864. [PMID: 29898994 DOI: 10.1158/0008-5472.can-17-3835] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 04/19/2018] [Accepted: 06/06/2018] [Indexed: 11/16/2022]
Abstract
p62 is a receptor that facilitates selective autophagy by interacting simultaneously with cargoes and LC3 protein on the autophagosome to maintain cellular homeostasis. However, the regulatory mechanism(s) behind this process and its association with breast cancer remain to be elucidated. Here, we report that Flightless-I (FliI), a novel p62-interacting protein, promotes breast cancer progression by impeding selective autophagy. FliI was highly expressed in clinical breast cancer samples, and heterozygous deletion of FliI retarded the development of mammary tumors in PyVT mice. FliI induced p62-recruited cargoes into Triton X-100 insoluble fractions (TI) to form aggregates, thereby blocking p62 recognition of LC3 and hindering p62-dependent selective autophagy. This function of Flil was reinforced by Akt-mediated phosphorylation at Ser436 and inhibited by phosphorylation of Ulk1 at Ser64. Obstruction of autophagic clearance of p62-recruited cargoes by FliI was associated with the accumulation of oxidative damage on proteins and DNA, which could contribute to the development of cancer. Heterozygous knockout of FliI facilitated selectively autophagic clearance of aggregates, abatement of ROS levels, and protein oxidative damage, ultimately retarding mammary cancer progression. In clinical breast cancer samples, Akt-mediated phosphorylation of FliI at Ser436 negatively correlated with long-term prognosis, while Ulk1-induced FliI phosphorylation at Ser64 positively correlated with clinical outcome. Together, this work demonstrates that FliI functions as a checkpoint protein for selective autophagy in the crosstalk between FliI and p62-recruited cargoes, and its phosphorylation may serve as a prognostic marker for breast cancer.Significance: Flightless-I functions as a checkpoint protein for selective autophagy by interacting with p62 to block its recognition of LC3, leading to tumorigenesis in breast cancer.Cancer Res; 78(17); 4853-64. ©2018 AACR.
Collapse
Affiliation(s)
- Jian-Ping He
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Pei-Pei Hou
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Qi-Tao Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Wei-Jia Wang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Xiao-Yu Sun
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Peng-Bo Yang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Ying-Ping Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Lu-Ming Yao
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Xiaotong Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Xin-Dong Jiang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Kun-Yi Chien
- Molecular Medicine Research Center, Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Zhi-Ming Zhang
- Department of Breast Surgery, the First Affiliated Hospital, Xiamen University, Xiamen, Fujian, China
| | - Qiu-Wan Wu
- Department of Breast Surgery, the First Affiliated Hospital, Xiamen University, Xiamen, Fujian, China
| | - Allison J Cowin
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia
| | - Qiao Wu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China
| | - Hang-Zi Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian Province, P.R. China.
| |
Collapse
|
34
|
Ramachandran RA, Lupfer C, Zaki H. The Inflammasome: Regulation of Nitric Oxide and Antimicrobial Host Defence. Adv Microb Physiol 2018; 72:65-115. [PMID: 29778217 DOI: 10.1016/bs.ampbs.2018.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) is a gaseous signalling molecule that plays diverse physiological functions including antimicrobial host defence. During microbial infection, NO is synthesized by inducible NO synthase (iNOS), which is expressed by host immune cells through the recognition of microbial pattern molecules. Therefore, sensing pathogens or their pattern molecules by pattern recognition receptors (PRRs), which are located at the cell surface, endosomal and phagosomal compartment, or in the cytosol, is key in inducing iNOS and eliciting antimicrobial host defence. A group of cytosolic PRRs is involved in inducing NO and other antimicrobial molecules by forming a molecular complex called the inflammasome. Assembled inflammasomes activate inflammatory caspases, such as caspase-1 and caspase-11, which in turn process proinflammatory cytokines IL-1β and IL-18 into their mature forms and induce pyroptotic cell death. IL-1β and IL-18 play a central role in immunity against microbial infection through activation and recruitment of immune cells, induction of inflammatory molecules, and regulation of antimicrobial mediators including NO. Interestingly, NO can also regulate inflammasome activity in an autocrine and paracrine manner. Here, we discuss molecular mechanisms of inflammasome formation and the inflammasome-mediated regulation of host defence responses during microbial infections.
Collapse
Affiliation(s)
| | | | - Hasan Zaki
- UT Southwestern Medical Center, Dallas, TX, United States.
| |
Collapse
|
35
|
Abstract
Shigella is a leading cause of dysentery worldwide, responsible for up to 165 million cases of shigellosis each year. Shigella is also recognised as an exceptional model pathogen to study key issues in cell biology and innate immunity. Several infection models have been useful to explore Shigella biology; however, we still lack information regarding the events taking place during the Shigella infection process in vivo Here, we discuss a selection of mechanistic insights recently gained from studying Shigella infection of zebrafish (Danio rerio), with a focus on cytoskeleton rearrangements and cellular immunity. We also discuss how infection of zebrafish can be used to investigate new concepts underlying infection control, including emergency granulopoiesis and the use of predatory bacteria to combat antimicrobial resistance. Collectively, these insights illustrate how Shigella infection of zebrafish can provide fundamental advances in our understanding of bacterial pathogenesis and vertebrate host defence. This information should also provide vital clues for the discovery of new therapeutic strategies against infectious disease in humans.
Collapse
Affiliation(s)
- Gina M Duggan
- Section of Microbiology, MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK
| | - Serge Mostowy
- Section of Microbiology, MRC Centre for Molecular Bacteriology and Infection, Imperial College London, London SW7 2AZ, UK
| |
Collapse
|
36
|
Poudel B, Gurung P. An update on cell intrinsic negative regulators of the NLRP3 inflammasome. J Leukoc Biol 2018; 103:10.1002/JLB.3MIR0917-350R. [PMID: 29377242 PMCID: PMC6202258 DOI: 10.1002/jlb.3mir0917-350r] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 01/09/2018] [Indexed: 12/22/2022] Open
Abstract
Inflammasomes are multimeric protein complexes that promote inflammation (through specific cleavage and production of bioactive IL-1β and IL-18) and pyroptotic cell death. The central role of inflammasomes in combating infection and maintaining homeostasis has been studied extensively. Although inflammasome-mediated inflammation and cell death are vital to limit pathogenic insults and to promote wound healing/tissue regeneration, unchecked/uncontrolled inflammation, and cell death can cause cytokine storm, tissue damage, autoinflammatory and autoimmune diseases, and even death in the afflicted individuals. NLRP3 is one of the major cytosolic sensors that assemble an inflammasome. Given the adverse consequences of uncontrolled inflammasome activation, our immune system has developed tiered mechanisms to inhibit NLRP3 inflammasome activation. In this review, we highlight and discuss recent advances and our current understanding of mechanisms by which NLRP3 inflammasome can be negatively regulated.
Collapse
Affiliation(s)
- Barun Poudel
- Inflammation Program, University of Iowa, Iowa City, Iowa, USA
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Prajwal Gurung
- Inflammation Program, University of Iowa, Iowa City, Iowa, USA
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
- Immunology Graduate Program, University of Iowa, Iowa City, Iowa, USA
- Center for Immunology and Immune-Based Disease, University of Iowa, Iowa City, Iowa, USA
| |
Collapse
|
37
|
Yerramothu P, Vijay AK, Willcox MDP. Inflammasomes, the eye and anti-inflammasome therapy. Eye (Lond) 2017; 32:491-505. [PMID: 29171506 DOI: 10.1038/eye.2017.241] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 08/28/2017] [Indexed: 02/08/2023] Open
Abstract
Inflammasomes, key molecular regulators that play an important role in inflammation, consist of a central protein, an adaptor protein ASC (apoptosis speck-like protein) and a caspase-1 protein. Upon activation, caspase-1 induces maturation of cytokines such as interleukin-1β (IL-1β) and interleukin-18 (IL-18). The release of these cytokines can result in inflammation. Inflammasomes are activated by a variety of factors and their activation involves complex signalling leading to resolution of infection, but can also contribute to the pathology of inflammatory, autoimmune, and infectious diseases. The role of NLRP1, NLRP3, NLRC4 and AIM2 inflammasomes in the pathogenesis of ocular diseases such as glaucoma, age related macular degeneration (AMD), diabetic retinopathy, dry eye and infections of the eye has been established over the past decade. In experimental studies and models, inhibition of inflammasomes generally helps to reduce the inflammation associated with these eye diseases, but as yet the role of these inflammasomes in many human eye diseases is unknown. Therefore, a need exists to study and understand various aspects of inflammasomes and their contribution to the pathology of human eye diseases. The goal of this review is to discuss the role of inflammasomes in the pathology of eye diseases, scope for anti-inflammasome therapy, and current research gaps in inflammasome-related eye disease.
Collapse
Affiliation(s)
- P Yerramothu
- School of Optometry and Vision Science, Faculty of Science, University of New South Wales, Sydney, Australia
| | - A K Vijay
- School of Optometry and Vision Science, Faculty of Science, University of New South Wales, Sydney, Australia
| | - M D P Willcox
- School of Optometry and Vision Science, Faculty of Science, University of New South Wales, Sydney, Australia
| |
Collapse
|
38
|
Niu Z, Shi Q, Zhang W, Shu Y, Yang N, Chen B, Wang Q, Zhao X, Chen J, Cheng N, Feng X, Hua Z, Ji J, Shen P. Caspase-1 cleaves PPARγ for potentiating the pro-tumor action of TAMs. Nat Commun 2017; 8:766. [PMID: 28974683 PMCID: PMC5626701 DOI: 10.1038/s41467-017-00523-6] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/06/2017] [Indexed: 12/31/2022] Open
Abstract
Tumor-associated macrophages are increasingly viewed as a target of great relevance in the tumor microenvironment, because of their important role in cancer progression and metastasis. However, the endogenous regulatory mechanisms underlying tumor-associated macrophage differentiation remain largely unknown. Here, we report that caspase-1 promotes tumor-associated macrophage differentiation by cleaving peroxisome proliferator-activated receptor gamma (PPARγ) at Asp64, thus generating a 41 kDa fragment. This truncated PPARγ translocates to mitochondria, where it directly interacts with medium-chain acyl-CoA dehydrogenase (MCAD). This binding event attenuates MCAD activity and inhibits fatty acid oxidation, thereby leading to the accumulation of lipid droplets and promoting tumor-associated macrophage differentiation. Furthermore, the administration of caspase-1 inhibitors or the infusion of bone marrow-derived macrophages genetically engineered to overexpress murine MCAD markedly suppresses tumor growth. Therefore, targeting the caspase-1/PPARγ/MCAD pathway might be a promising therapeutic approach to prevent tumor progression.Tumor associated macrophages (TAMs) promote cancer progression. Here, the author show that caspase-1 promotes TAMs differentiation by attenuating medium-chain acyl-CoA dehydrogenase activity and that inhibition of this axis results in suppression of tumour growth in a transgenic mouse model of breast cancer.
Collapse
Affiliation(s)
- Zhiyuan Niu
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China
| | - Qian Shi
- Department of Cellular and Integrative Physiology, The University of Texas Health Science Center at San Antonio, STRF-Greehey North Campus, 8403 Floyd Curl Drive, San Antonio, Texas, 78229-3904, USA
| | - Wenlong Zhang
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China
| | - Yuxin Shu
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China
| | - Nanfei Yang
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China
| | - Bing Chen
- Department of Hematology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Qingsong Wang
- The State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Xuyang Zhao
- The State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Jiajia Chen
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China
| | - Nan Cheng
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China
| | - Xiujing Feng
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China
| | - Zichun Hua
- State Key Laboratory of Pharmaceutical Biotechnology School of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Jianguo Ji
- The State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing, 100871, China
| | - Pingping Shen
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, 210023, China.
| |
Collapse
|
39
|
Wang W, Shi Q, Dou S, Li G, Shi X, Jiang X, Wang Z, Yu D, Chen G, Wang R, Xiao H, Hou C, Feng J, Shen B, Ma Y, Han G. Negative regulation of Nod-like receptor protein 3 inflammasome activation by T cell Ig mucin-3 protects against peritonitis. Immunology 2017; 153:71-83. [PMID: 28799242 DOI: 10.1111/imm.12812] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 07/13/2017] [Accepted: 07/31/2017] [Indexed: 12/21/2022] Open
Abstract
The Nod-like receptor protein 3 (NLRP3) inflammasome plays roles in host defence against invading pathogens and in the development of autoimmune damage. Strict regulation of these responses is important to avoid detrimental effects. Here, we demonstrate that T cell Ig mucin-3 (Tim-3), an immune checkpoint inhibitor, inhibits NLRP3 inflammasome activation by damping basal and lipopolysaccharide-induced nuclear factor-κB-mediated up-regulation of NLRP3 and interleukin-1β during the priming step and basal and ATP/lipopolysaccharide-induced ATP production, K+ efflux, and reactive oxygen species production during the activation step. Residues Y256/Y263 in the C-terminal region of Tim-3 are required for these inhibitory effects on the NLRP3 inflammasome. In mice with alum-induced peritonitis, blockade of Tim-3 exacerbates peritonitis by overcoming the inhibitory effect of Tim-3 on NLRP3 inflammasome activation, while transgenic expression of Tim-3 attenuates inflammation by inhibiting NLRP3 inflammasome activation. Our results show that Tim-3 is a critical negative regulator of NLRP3 inflammasome and provides a potential target for intervention of diseases with uncontrolled inflammasome activation.
Collapse
Affiliation(s)
- Wei Wang
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China.,Institute of Immunology, Medical School of Henan University, Kaifeng, China
| | - Qingzhu Shi
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Shuaijie Dou
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China.,Anhui Medical University, Hefei, China
| | - Ge Li
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Xinhui Shi
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Xingwei Jiang
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Zhiding Wang
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Dandan Yu
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Guojiang Chen
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Renxi Wang
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - He Xiao
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Chunmei Hou
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Jiannan Feng
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Beifen Shen
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Yuanfang Ma
- Institute of Immunology, Medical School of Henan University, Kaifeng, China
| | - Gencheng Han
- Department of Immunology, Beijing Institute of Basic Medical Sciences, Beijing, China
| |
Collapse
|
40
|
Zhao X, Pu D, Zhao Z, Zhu H, Li H, Shen Y, Zhang X, Zhang R, Shen J, Xiao W, Chen W. Teuvincenone F Suppresses LPS-Induced Inflammation and NLRP3 Inflammasome Activation by Attenuating NEMO Ubiquitination. Front Pharmacol 2017; 8:565. [PMID: 28878677 PMCID: PMC5572209 DOI: 10.3389/fphar.2017.00565] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/09/2017] [Indexed: 01/27/2023] Open
Abstract
Inflammation causes many diseases that are serious threats to human health. However, the molecular mechanisms underlying regulation of inflammation and inflammasome activation are not fully understood which has delayed the discovery of new anti-inflammatory drugs of urgent clinic need. Here, we found that the natural compound Teuvincenone F, which was isolated and purified from the stems and leaves of Premna szemaoensis, could significantly inhibit lipopolysaccharide (LPS)-induced pro-inflammatory cytokines production and NLRP3 inflammasome activation. Our results showed that Teuvincenone F attenuated K63-linked ubiquitination of NF-κB-essential modulator (NEMO, also known as IKKγ) to suppress LPS-induced phosphorylation of NF-κB, and inhibited mRNA expression of IL-1β, IL-6, TNF-α, and NLRP3. In addition, we found that decreased NLRP3 expression by Teuvincenone F suppressed NLRP3 inflammasome activation and IL-1β/IL-18 maturation. In vivo, we revealed that Teuvincenone F treatment relieved LPS-induced inflammation. In conclusion, Teuvincenone F is a highly effective natural compound to suppress LPS-induced inflammation by attenuating K63-linked ubiquitination of NEMO, highlighting that Teuvincenone F may be a potential new anti-inflammatory drug for the treatment of inflammatory and NLRP3 inflammasome-driven diseases.
Collapse
Affiliation(s)
- Xibao Zhao
- Department of Immunology, School of Medicine, Shenzhen UniversityShenzhen, China.,Institute of Immunology, Department of Basic Medicine, Zhejiang University School of MedicineHangzhou, China
| | - Debing Pu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan UniversityKunming, China.,State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of SciencesKunming, China
| | - Zizhao Zhao
- Institute of Immunology, Department of Basic Medicine, Zhejiang University School of MedicineHangzhou, China
| | - Huihui Zhu
- Institute of Immunology, Department of Basic Medicine, Zhejiang University School of MedicineHangzhou, China
| | - Hongrui Li
- Department of Immunology, School of Medicine, Shenzhen UniversityShenzhen, China.,Institute of Immunology, Department of Basic Medicine, Zhejiang University School of MedicineHangzhou, China
| | - Yaping Shen
- Institute of Immunology, Department of Basic Medicine, Zhejiang University School of MedicineHangzhou, China
| | - Xingjie Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan UniversityKunming, China
| | - Ruihan Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan UniversityKunming, China
| | - Jianzhong Shen
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn UniversityAuburn, AL, United States
| | - Weilie Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan UniversityKunming, China.,State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of SciencesKunming, China
| | - Weilin Chen
- Department of Immunology, School of Medicine, Shenzhen UniversityShenzhen, China.,Institute of Immunology, Department of Basic Medicine, Zhejiang University School of MedicineHangzhou, China
| |
Collapse
|
41
|
Abstract
Shigella flexneri, a Gram-negative enteroinvasive pathogen, causes inflammatory destruction of the human intestinal epithelium. Infection by S. flexneri has been well-studied in vitro and is a paradigm for bacterial interactions with the host immune system. Recent work has revealed that components of the cytoskeleton have important functions in innate immunity and inflammation control. Septins, highly conserved cytoskeletal proteins, have emerged as key players in innate immunity to bacterial infection, yet septin function in vivo is poorly understood. Here, we use S. flexneri infection of zebrafish (Danio rerio) larvae to study in vivo the role of septins in inflammation and infection control. We found that depletion of Sept15 or Sept7b, zebrafish orthologs of human SEPT7, significantly increased host susceptibility to bacterial infection. Live-cell imaging of Sept15-depleted larvae revealed increasing bacterial burdens and a failure of neutrophils to control infection. Strikingly, Sept15-depleted larvae present significantly increased activity of Caspase-1 and more cell death upon S. flexneri infection. Dampening of the inflammatory response with anakinra, an antagonist of interleukin-1 receptor (IL-1R), counteracts Sept15 deficiency in vivo by protecting zebrafish from hyper-inflammation and S. flexneri infection. These findings highlight a new role for septins in host defence against bacterial infection, and suggest that septin dysfunction may be an underlying factor in cases of hyper-inflammation.
Collapse
|
42
|
Prabhakaran V, Drevets DA, Ramajayam G, Manoj JJ, Anderson MP, Hanas JS, Rajshekhar V, Oommen A, Carabin H. Comparison of monocyte gene expression among patients with neurocysticercosis-associated epilepsy, Idiopathic Epilepsy and idiopathic headaches in India. PLoS Negl Trop Dis 2017. [PMID: 28622332 PMCID: PMC5489221 DOI: 10.1371/journal.pntd.0005664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background Neurocysticercosis (NCC), a neglected tropical disease, inflicts substantial health and economic costs on people living in endemic areas such as India. Nevertheless, accurate diagnosis using brain imaging remains poorly accessible and too costly in endemic countries. The goal of this study was to test if blood monocyte gene expression could distinguish patients with NCC-associated epilepsy, from NCC-negative imaging lesion-free patients presenting with idiopathic epilepsy or idiopathic headaches. Methods/Principal findings Patients aged 18 to 51 were recruited from the Department of Neurological Sciences, Christian Medical College and Hospital, Vellore, India, between January 2013 and October 2014. mRNA from CD14+ blood monocytes was isolated from 76 patients with NCC, 10 Recovered NCC (RNCC), 29 idiopathic epilepsy and 17 idiopathic headaches patients. A preliminary microarray analysis was performed on six NCC, six idiopathic epilepsy and four idiopathic headaches patients to identify genes differentially expressed in NCC-associated epilepsy compared with other groups. This analysis identified 1411 upregulated and 733 downregulated genes in patients with NCC compared to Idiopathic Epilepsy. Fifteen genes up-regulated in NCC patients compared with other groups were selected based on possible relevance to NCC, and analyzed by qPCR in all patients’ samples. Differential gene expression among patients was assessed using linear regression models. qPCR analysis of 15 selected genes showed generally higher gene expression among NCC patients, followed by RNCC, idiopathic headaches and Idiopathic Epilepsy. Gene expression was also generally higher among NCC patients with single cyst granulomas, followed by mixed lesions and single calcifications. Conclusions/Significance Expression of certain genes in blood monocytes can distinguish patients with NCC-related epilepsy from patients with active Idiopathic Epilepsy and idiopathic headaches. These findings are significant because they may lead to the development of new tools to screen for and monitor NCC patients without brain imaging. Taenia solium is a parasite normally transmitted between humans and pigs in areas with poor sanitation. Neurocysticercosis (NCC) occurs when humans are infected with larvae of T. solium that are shed with human feces and the larvae establish in the brain. NCC is often accompanied by neurological symptoms such as epilepsy. In fact, NCC causes approximately one-third of epilepsy cases in areas where T. solium is common. Unfortunately, diagnosis of NCC requires brain computerized tomography or magnetic resonance imaging, tools rarely accessible to people living where NCC is prevalent. This study tested whether genes expressed in blood monocytes, a type of white blood cell, could distinguish between people with epilepsy caused by NCC from those with epilepsy of unknown cause (idiopathic). We compared gene expression in people with NCC and epilepsy, people with idiopathic epilepsy, people cured of NCC and people without NCC or epilepsy but with headaches. We identified 15 genes which were expressed differently in the four different groups indicating that monocyte gene expression patterns in people with NCC and epilepsy are different than people with idiopathic epilepsy. These findings could lead to better understanding how humans respond to NCC and to diagnostic tests which would not require brain imaging.
Collapse
Affiliation(s)
| | - Douglas A. Drevets
- Dept. of Internal Medicine, University of Oklahoma HSC, and the VA Medical Center, Oklahoma City, United States of America
| | - Govindan Ramajayam
- Department of Neurological Sciences, Christian Medical College, Vellore, India
| | - Josephine J. Manoj
- Department of Neurological Sciences, Christian Medical College, Vellore, India
| | - Michael P. Anderson
- Dept. of Biostatistics and Epidemiology, University of Oklahoma HSC, Oklahoma City, United States of America
| | - Jay S. Hanas
- Dept. of Biochemistry and Dept. of Surgery, University of Oklahoma HSC, Oklahoma City, United States of America
| | - Vedantam Rajshekhar
- Department of Neurological Sciences, Christian Medical College, Vellore, India
| | - Anna Oommen
- Department of Neurological Sciences, Christian Medical College, Vellore, India
| | - Hélène Carabin
- Dept. of Biostatistics and Epidemiology, University of Oklahoma HSC, Oklahoma City, United States of America
- * E-mail:
| |
Collapse
|
43
|
Kopecki Z, Yang GN, Jackson JE, Melville EL, Calley MP, Murrell DF, Darby IA, O'Toole EA, Samuel MS, Cowin AJ. Cytoskeletal protein Flightless I inhibits apoptosis, enhances tumor cell invasion and promotes cutaneous squamous cell carcinoma progression. Oncotarget 2017; 6:36426-40. [PMID: 26497552 PMCID: PMC4742187 DOI: 10.18632/oncotarget.5536] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 10/09/2015] [Indexed: 01/08/2023] Open
Abstract
Flightless I (Flii) is an actin remodeling protein that affects cellular processes including adhesion, proliferation and migration. In order to determine the role of Flii during carcinogenesis, squamous cell carcinomas (SCCs) were induced in Flii heterozygous (Flii+/-), wild-type and Flii overexpressing (FliiTg/Tg) mice by intradermal injection of 3-methylcholanthrene (MCA). Flii levels were further assessed in biopsies from human SCCs and the human SCC cell line (MET-1) was used to determine the effect of Flii on cellular invasion. Flii was highly expressed in human SCC biopsies particularly by the invading cells at the tumor edge. FliiTg/Tg mice developed large, aggressive SCCs in response to MCA. In contrast Flii+/- mice had significantly smaller tumors that were less invasive. Intradermal injection of Flii neutralizing antibodies during SCC initiation and progression significantly reduced the size of the tumors and, in vitro, decreased cellular sphere formation and invasion. Analysis of the tumors from the Flii overexpressing mice showed reduced caspase I and annexin V expression suggesting Flii may negatively regulate apoptosis within these tumors. These studies therefore suggest that Flii enhances SCC tumor progression by decreasing apoptosis and enhancing tumor cell invasion. Targeting Flii may be a potential strategy for reducing the severity of SCCs.
Collapse
Affiliation(s)
- Zlatko Kopecki
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia
| | - Gink N Yang
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia
| | - Jessica E Jackson
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia
| | - Elizabeth L Melville
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia
| | - Matthew P Calley
- Centre for Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Dedee F Murrell
- Department of Dermatology, St. George Hospital and University of New South Wales, Sydney, New South Wales, Australia
| | - Ian A Darby
- School of Medical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - Edel A O'Toole
- Centre for Cutaneous Research, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Michael S Samuel
- Centre for Cancer Biology, an alliance between SA Pathology and the University of South Australia, Adelaide, South Australia, Australia
| | - Allison J Cowin
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide, South Australia, Australia
| |
Collapse
|
44
|
Niu Z, Tang J, Zhang W, Chen Y, Huang Y, Chen B, Li J, Shen P. Caspase-1 promotes monocyte-macrophage differentiation by repressing PPARγ. FEBS J 2017; 284:568-585. [PMID: 28052562 DOI: 10.1111/febs.13998] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 12/19/2016] [Accepted: 01/03/2017] [Indexed: 12/24/2022]
Abstract
Monocyte-to-macrophage differentiation is tightly controlled in vivo, as disruption of the normal differentiation program can lead to diverse disorders. Caspase-1, the first identified member of the caspase family, regulates differentiation in various cell types such as Th17 cells and adipocytes. However, the contribution of caspase-1 in monocyte-macrophage differentiation remains elusive. Here we report that caspase-1 is significantly downregulated in leukemia cells from patients with acute monocytic leukemia. By using the phorbol 12-myristate 13-acetate-induced cell differentiation model, we found that caspase-1 activation was required for the differentiation of human monocytes to macrophages. Further analysis of peroxisome proliferator-activated receptor γ (PPARγ) protein levels revealed that the monocyte-macrophage differentiation program could be divided into two stages. Caspase-1-mediated downregulation of PPARγ was important in the late stage of monocyte-macrophage differentiation; however, PPARγ protein levels had little effect on the early stage differentiation. Accumulation of PPARγ protein by troglitazone treatment potently suppressed the late stage of macrophage differentiation, which might be linked to inhibition of nuclear factor-κB activity. The data provide a plausible mechanistic basis by which caspase-1 promotes the differentiation of macrophages from monocytes.
Collapse
Affiliation(s)
- Zhiyuan Niu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, China
| | - Jiajin Tang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, China
| | - Wenlong Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, China
| | - Yongjun Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, China
| | - Yahong Huang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, China
| | - Bing Chen
- Department of Hematology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, China
| | - Jiahong Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, China
| | - Pingping Shen
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University, China
| |
Collapse
|
45
|
Liu X, Zhang X, Ding Y, Zhou W, Tao L, Lu P, Wang Y, Hu R. Nuclear Factor E2-Related Factor-2 Negatively Regulates NLRP3 Inflammasome Activity by Inhibiting Reactive Oxygen Species-Induced NLRP3 Priming. Antioxid Redox Signal 2017; 26:28-43. [PMID: 27308893 PMCID: PMC5198158 DOI: 10.1089/ars.2015.6615] [Citation(s) in RCA: 177] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIMS The NLRP3 inflammasome is a multiprotein complex that protects hosts against a variety of pathogens. However, the molecular mechanisms of modulating NLRP3 inflammasome activation, especially at the priming step, are still poorly understood. This study was designed to elucidate the negative regulation of nuclear factor E2-related factor-2 (Nrf2) on the activation of NLRP3 inflammasome. RESULTS We reported that Nrf2 activation inhibited NLRP3 expression, caspase-1 cleavage, and subsequent IL-1β generation. Compared with normal cells, Nrf2-deficient cells showed upregulated cleaved caspase-1, which were attributed to the increased transcription of NLRP3 caused by excess reactive oxygen species (ROS). Furthermore, priming of the NLRP3 inflammasome was sensitive to the exogenous ROS levels induced by H2O2 or rotenone. Combined with adenosine triphosphate, rotenone triggered higher activity of the NLRP3 inflammasome compared with lipopolysaccharide, suggesting that ROS promoted the priming step. In addition, Nrf2-induced NQO1 was involved in the inhibition of the NLRP3 inflammasome. In an in vivo alum-induced peritonitis mouse model, Nrf2 activation suppressed typical IL-1 signaling-dependent inflammation, whereas Nrf2-/- mice exhibited a significant increase in the recruitment of immune cell and the generation of IL-1β compared with wild-type mice. INNOVATION We elucidated the effects and possible mechanisms of Nrf2 activation-induced NQO1 expression on NLRP3 inflammasome inactivation and established a novel regulatory role of the Nrf2 pathway in ROS-induced NLRP3 priming. CONCLUSIONS We demonstrated Nrf2 negatively regulating NLRP3 inflammasome activity by inhibiting the priming step and suggested that Nrf2 could be a potential target for some uncontrolled inflammasome activation-associated diseases. Antioxid. Redox Signal. 26, 28-43.
Collapse
Affiliation(s)
- Xiuting Liu
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| | - Xin Zhang
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| | - Yang Ding
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| | - Wei Zhou
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| | - Lei Tao
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| | - Ping Lu
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| | - Yajing Wang
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| | - Rong Hu
- Department of Physiology, State Key Laboratory of Natural Medicines, China Pharmaceutical University , Nanjing, China
| |
Collapse
|
46
|
Yu SX, Chen W, Hu XZ, Feng SY, Li KY, Qi S, Lei QQ, Hu GQ, Li N, Zhou FH, Ma CY, Du CT, Yang YJ. Liver X receptors agonists suppress NLRP3 inflammasome activation. Cytokine 2016; 91:30-37. [PMID: 27987394 DOI: 10.1016/j.cyto.2016.12.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 11/28/2016] [Accepted: 12/04/2016] [Indexed: 11/15/2022]
Abstract
Inflammasomes are multiprotein complexes that control the production of IL-1β and IL-18. NLRP3 inflammasome, the most characterized inflammasome, plays prominent roles in defense against infection, however aberrant activation is deleterious and leads to diseases. Therefore, its tight control offers therapeutic promise. Liver X receptors (LXRs) have significant anti-inflammatory properties. Whether LXRs regulate inflammasome remains unresolved. We thus tested the hypothesis that LXR's anti-inflammatory properties may result from its ability to suppress inflammasome activation. In this study, LXRs agonists inhibited the induction of IL-1β production, caspase-1 cleavage and ASC oligomerization by NLRP3 inflammasome. The agonists also inhibited inflammasome-associated mtROS production. Importantly, the agonists inhibited the priming of inflammasome activation. In vivo data also showed that LXRs agonist prevented NLRP3-dependent peritonitis. In conclusion, LXRs agonists are identified to potently suppress NLRP3 inflammasome and the regulation of LXRs signaling is a potential therapeutic for inflammasome-driven diseases.
Collapse
Affiliation(s)
- Shui-Xing Yu
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Wei Chen
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xiao-Zhu Hu
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Shi-Yuan Feng
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Kun-Yu Li
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Shuai Qi
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Qian-Qian Lei
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Gui-Qiu Hu
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Ning Li
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Feng-Hua Zhou
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Chao-Ying Ma
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Chong-Tao Du
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yong-Jun Yang
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China.
| |
Collapse
|
47
|
Innate recognition of microbial-derived signals in immunity and inflammation. SCIENCE CHINA-LIFE SCIENCES 2016; 59:1210-1217. [PMID: 27888386 DOI: 10.1007/s11427-016-0325-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 10/27/2016] [Indexed: 12/14/2022]
Abstract
Microbes generate a vast array of different types of conserved structural components called pathogen-associated molecular patterns (PAMPs), which can be recognized by cells of the innate immune system. This recognition of "nonself" signatures occurs through host pattern recognition receptors (PRRs), suggesting that microbial-derived signals are good targets for innate immunity to discriminate between self- and nonself. Such PAMP-PRR interactions trigger multiple but distinct downstream signaling cascades, subsequently leading to production of proinflammatory cytokines and interferons that tailor immune responses to particular microbes. Aberrant PRR signals have been associated with various inflammatory diseases and fine regulation of PRR signaling is essential for avoiding excessive inflammatory immune responses and maintaining immune homeostasis. In this review we summarize the ligands and signal transduction pathways of PRRs and highlight recent progress of the mechanisms involved in microbe-specific innate immune recognition during immune responses and inflammation, which may provide new targets for therapeutic intervention to the inflammatory disorders.
Collapse
|
48
|
Strudwick XL, Waters JM, Cowin AJ. Flightless I Expression Enhances Murine Claw Regeneration Following Digit Amputation. J Invest Dermatol 2016; 137:228-236. [PMID: 27595936 DOI: 10.1016/j.jid.2016.08.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/05/2016] [Accepted: 08/05/2016] [Indexed: 10/21/2022]
Abstract
The mammalian digit tip is capable of both reparative and regenerative wound healing dependent on the level of amputation injury. Removal of the distal third of the terminal phalange results in successful regeneration, whereas a more severe, proximal, amputation heals by tissue repair. Flightless I (Flii) is involved in both tissue repair and regeneration. It negatively regulates wound repair but elicits a positive effect in hair follicle regeneration, with Flii overexpression resulting in significantly longer hair fibers. Using a model of digit amputation in Flii overexpressing (FIT) mice, we investigated Flii in digit regeneration. Both wild-type and FIT digits regenerated after distal amputation with newly regenerated FIT claws being significantly longer than intact controls. No regeneration was observed in wild-type mice after severe proximal amputation; however, FIT mice showed significant regeneration of the missing digit. Using a three-dimensional model of nail formation, connective tissue fibroblasts isolated from the mesenchymal tissue surrounding the wild-type and FIT digit tips and cocultured with skin keratinocytes demonstrated aggregate structures resembling rudimentary nail buds only when Flii was overexpressed. Moreover, β-catenin and cyclin D1 expression was maintained in the FIT regenerating germinal matrix suggesting a potential interaction of Flii with Wnt signaling during regeneration.
Collapse
Affiliation(s)
- Xanthe L Strudwick
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia.
| | - James M Waters
- Women's and Children's Health Research Institute, North Adelaide, South Australia, Australia
| | - Allison J Cowin
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
| |
Collapse
|
49
|
Liu M, Liu M, Li B, Zhou Y, Huang Y, Lan X, Qu W, Qi X, Bai Y, Chen H. Polymorphisms of FLII implicate gene expressions and growth traits in Chinese cattle. Mol Cell Probes 2016; 30:266-272. [DOI: 10.1016/j.mcp.2016.07.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/30/2016] [Accepted: 07/20/2016] [Indexed: 01/23/2023]
|
50
|
F-actin dampens NLRP3 inflammasome activity via Flightless-I and LRRFIP2. Sci Rep 2016; 6:29834. [PMID: 27431477 PMCID: PMC4949445 DOI: 10.1038/srep29834] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/22/2016] [Indexed: 01/12/2023] Open
Abstract
NLRP3 and ASC are able to form a large multimeric complex called inflammasome in response to a number danger signals. The NLRP3 inflammasome is required for the activation of caspase-1 and subsequent maturation of pro-IL-1β into active IL-1β. Although the mechanisms regulating the formation and activity of NLRP3 inflammasome are yet not fully elucidated, data suggest that the assembly of NLRP3 inflammasome requires microtubules to induce the proximity of ASC and NLRP3. In this study we show that microfilaments (F-actin) inhibit NLRP3 inflammasome activity and interact with NLRP3 and ASC. We demonstrate that the inhibition depends on the actin polymerization state but not on the active polymerization process. In ATP- or nigericin-activated macrophages, our data further indicate that Flightless-I (FliI) and leucine-rich repeat FliI-interaction protein 2 (LRRFIP2) are required for the co-localization of NLRP3, ASC and F-actin. We also established that the ability of Ca2+ to accentuate the activity of NLRP3 inflammasome is abrogated in FliI- and LRRFIP2-knockdown macrophages, suggesting that Ca2+ signaling requires the presence of FliI and LRRFIP2. Accordingly, we observed that Ca2+/FliI-dependent severing of F-actin suppresses F-actin/FliI/LRRFIP2-dependent NLRP3 inflammasome inhibition leading to increase IL-1β production. Altogether, our results unveil a new function of F-actin in the regulation of NLRP3 inflammasome activity strengthening the importance of cytoskeleton in the regulation of inflammation.
Collapse
|