1
|
Li S, Guo S, Liu F, Yao Y, Zhu Y, Feng WH. miR-451-targeted PSMB8 promotes PRRSV infection by degrading IRF3. J Virol 2024:e0078424. [PMID: 39194214 DOI: 10.1128/jvi.00784-24] [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: 05/01/2024] [Accepted: 07/25/2024] [Indexed: 08/29/2024] Open
Abstract
Porcine respiratory and reproductive syndrome (PRRS) is one of the most devastating infectious diseases of pigs, causing reproductive failures in sows and severe respiratory symptoms in piglets and growing pigs. MicroRNAs (miRNAs) are reported to play an essential role in virus-host interactions. In this study, we demonstrated that miR-451 enhanced type I interferon (IFN-I) production through targeting proteasome subunit β8 (PSMB8), therefore restricting PRRS virus (PRRSV) replication. We showed that the expression of PSMB8 was upregulated by PRRSV infection, and knockdown of PSMB8 inhibited PRRSV replication by promoting IFN-I production. Moreover, we demonstrated that PSMB8 interacted with the regulatory domain of IRF3 to mediate K48-linked polyubiquitination and degradation of IRF3. Also, importantly, we showed that PSMB8, as a target gene of miR-451, negatively regulated IFN-I production by promoting IRF3 degradation, which is a previously unknown mechanism for PSMB8 to modulate innate immune responses. IMPORTANCE Porcine respiratory and reproductive syndrome virus (PRRSV), as a huge threat to the swine industry, is a causative agent that urgently needs to be solved. The dissecting of PRRSV pathogenesis and understanding of the host-pathogen interaction will provide insights into developing effective anti-PRRSV strategies. In this study, we showed that miR-451 dramatically inhibited PRRSV replication by targeting proteasome subunit β8 (PSMB8), a subunit of the immunoproteasome. Mutation of PSMB8 is often related to autoinflammatory diseases due to the elevated IFN production. We revealed that PSMB8 downregulated IFN production by promoting IRF3 degradation. In addition, we showed that PRRSV infection upregulated PSMB8 expression. Taken together, our findings reveal that miR-451 is a negative regulator of PRRSV replication, and PSMB8, a target gene of miR-451, negatively regulates IFN-I production by promoting IRF3 degradation, which is a previously unknown mechanism for PSMB8 to regulate innate immune responses.
Collapse
Affiliation(s)
- Sihan Li
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, China
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, China
- Ministry of Agriculture Key Laboratory of Soil Microbiology, China Agricultural University, Beijing, China
- Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Shuyuan Guo
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, China
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, China
- Ministry of Agriculture Key Laboratory of Soil Microbiology, China Agricultural University, Beijing, China
- Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Fang Liu
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, China
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, China
- Ministry of Agriculture Key Laboratory of Soil Microbiology, China Agricultural University, Beijing, China
- Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yao Yao
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, China
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, China
- Ministry of Agriculture Key Laboratory of Soil Microbiology, China Agricultural University, Beijing, China
- Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yingqi Zhu
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, China
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, China
- Ministry of Agriculture Key Laboratory of Soil Microbiology, China Agricultural University, Beijing, China
- Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Wen-Hai Feng
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, China
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing, China
- Ministry of Agriculture Key Laboratory of Soil Microbiology, China Agricultural University, Beijing, China
- Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, China
| |
Collapse
|
2
|
Chen H, Xiao J, Huang B, Que J, Liu M. Geraniol (GER) attenuated chronic sleep restriction (CSR)-induced neuroinflammation in adolescent mice. J Neuroimmunol 2024; 393:578400. [PMID: 38991453 DOI: 10.1016/j.jneuroim.2024.578400] [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: 03/27/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/13/2024]
Abstract
Sleep insufficiency is a significant health problem worldwide, and adolescent sleep restriction (SR) could induce multiple neurodevelopmental disorders in the central nervous system (CNS). Microglial-mediated neuroinflammation plays a vital role in multiple neurological diseases, and recent research showed the regulation effect of immunoproteasome on microglia functions. Geraniol (GER), an important ingredient in many essential oils, possesses diverse pharmacological properties like anti-inflammatory and antioxidant. The present study was designed to evaluate the neuroprotective effect of GER on SR in adolescent mice and further investigate the underlying mechanisms. Our results displayed that 14 days of chronic sleep restriction (CSR) induced cognitive decline, and anxiety-like and attention-deficit behaviors, which were mitigated by GER pretreatment. GER administration also reversed microglial pro-inflammatory response under CSR stimulation in the anterior cingulate cortex (ACC) regions by reducing the expression and secretion of cytokines like IL-1β and TNF-α. Mechanism research showed that LMP7 mRNA was selectively up-regulated under CSR treatment but down-regulated by GER administration. Proteasome activity and protein expression of LMP7 were consistent with mRNA data. ONX-0914 was applied to inhibit LMP7 selectively, and data validated that GER might alleviate CSR-induced neuroinflammation by regulating LMP7. Our study provides evidence that LMP7 is a critical regulator of CSR-induced proinflammation, and geraniol might be a promising therapy against CSR-induced neurodevelopmental disorders.
Collapse
Affiliation(s)
- Hengdao Chen
- Department of Anesthesiology and Perioperative Medicine, The 900 Hospital of the Joint Logistic Support Force of the People's Liberation Army of China, Fuzhou 350025, China
| | - Jinrong Xiao
- Department of Anesthesiology and Perioperative Medicine, The 900 Hospital of the Joint Logistic Support Force of the People's Liberation Army of China, Fuzhou 350025, China
| | - Bin Huang
- Department of Anesthesiology and Perioperative Medicine, The 900 Hospital of the Joint Logistic Support Force of the People's Liberation Army of China, Fuzhou 350025, China
| | - Jun Que
- Department of Anesthesiology and Perioperative Medicine, The 900 Hospital of the Joint Logistic Support Force of the People's Liberation Army of China, Fuzhou 350025, China
| | - Minsheng Liu
- Department of Anesthesiology and Perioperative Medicine, The 900 Hospital of the Joint Logistic Support Force of the People's Liberation Army of China, Fuzhou 350025, China.
| |
Collapse
|
3
|
Moezpoor MR, Stevenson M. Help or Hinder: Protein Host Factors That Impact HIV-1 Replication. Viruses 2024; 16:1281. [PMID: 39205255 PMCID: PMC11360189 DOI: 10.3390/v16081281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 08/05/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024] Open
Abstract
Interactions between human immunodeficiency virus type 1 (HIV-1) and the host factors or restriction factors of its target cells determine the cell's susceptibility to, and outcome of, infection. Factors intrinsic to the cell are involved at every step of the HIV-1 replication cycle, contributing to productive infection and replication, or severely attenuating the chances of success. Furthermore, factors unique to certain cell types contribute to the differences in infection between these cell types. Understanding the involvement of these factors in HIV-1 infection is a key requirement for the development of anti-HIV-1 therapies. As the list of factors grows, and the dynamic interactions between these factors and the virus are elucidated, comprehensive and up-to-date summaries that recount the knowledge gathered after decades of research are beneficial to the field, displaying what is known so that researchers can build off the groundwork of others to investigate what is unknown. Herein, we aim to provide a review focusing on protein host factors, both well-known and relatively new, that impact HIV-1 replication in a positive or negative manner at each stage of the replication cycle, highlighting factors unique to the various HIV-1 target cell types where appropriate.
Collapse
Affiliation(s)
- Michael Rameen Moezpoor
- Department of Microbiology and Immunology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Mario Stevenson
- Raymond F. Schinazi and Family Endowed Chair in Biomedicine; Professor of Medicine; Director, Institute of AIDS and Emerging Infectious Diseases; Department of Microbiology and Immunology, University of Miami Leonard M. Miller School of Medicine, Life Science Technology Park, 1951 NW 7th Avenue, Room 2331B, Suite 200, Miami, FL 33136, USA;
| |
Collapse
|
4
|
Tükel EY, Ateş O, Kiraz Y. In Silico Drug Repurposing Against PSMB8 as a Potential Target for Acute Myeloid Leukemia Treatment. Mol Biotechnol 2024:10.1007/s12033-024-01224-4. [PMID: 38954355 DOI: 10.1007/s12033-024-01224-4] [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: 10/03/2023] [Accepted: 06/21/2024] [Indexed: 07/04/2024]
Abstract
PSMB8 emerges as a prominent gene associated with cancer survival, yet its potential therapeutic role in acute myeloid leukemia (AML) remains unexplored within the existing literature. The principal aim of this study is to systematically screen an expansive library of molecular entities, curated from various databases to identify the prospective inhibitory agents with an affinity for PSMB8. A comprehensive assortment of molecular compounds obtained from the ZINC15 database was subjected to molecular docking simulations with PSMB8 by using the AutoDock tool in PyRx (version 0.9.9) to elucidate binding affinities. Following the docking simulations, a select subset of molecules underwent further investigation through comprehensive ADMET (absorption, distribution, metabolism, excretion, and toxicity) analysis employing AdmetSar and SwissADME tools. Finally, RMSD, RMSF, Rg, and H bond analyses were conducted via GROMACS to determine the best conformationally dynamic molecule that represents the candidate agent for the study. Following rigorous evaluation, Adozelesin, Fiduxosin, and Rimegepant have been singled out based on considerations encompassing bioavailability scores, compliance with filter criteria, and acute oral toxicity levels. Additionally, ligand interaction analysis indicates that Adozelesin and Fiduxosin exhibit an augmented propensity for hydrogen bond formation, a factor recognized for its facilitative role in protein-ligand interactions. After final analyses, we report that Fiduxosin may offer a treatment possibility by reversing the low survival rates caused by PSMB8 high activation in AML. This study represents a strategic attempt to repurpose readily available pharmaceutical agents, potentially obviating the need for de novo drug development, and thereby offering promising avenues for therapeutic intervention in specific diseases.
Collapse
Affiliation(s)
- Ezgi Yağmur Tükel
- Department of Genetics and Bioengineering, Faculty of Engineering, İzmir University of Economics, Sakarya st. No:156, 35330, Balçova, İzmir, Turkey
| | - Onur Ateş
- Department of Genetics and Bioengineering, Faculty of Engineering, İzmir University of Economics, Sakarya st. No:156, 35330, Balçova, İzmir, Turkey
| | - Yağmur Kiraz
- Department of Genetics and Bioengineering, Faculty of Engineering, İzmir University of Economics, Sakarya st. No:156, 35330, Balçova, İzmir, Turkey.
| |
Collapse
|
5
|
Zhou X, Xu R, Wu Y, Zhou L, Xiang T. The role of proteasomes in tumorigenesis. Genes Dis 2024; 11:101070. [PMID: 38523673 PMCID: PMC10958230 DOI: 10.1016/j.gendis.2023.06.037] [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: 02/22/2023] [Revised: 05/10/2023] [Accepted: 06/27/2023] [Indexed: 03/26/2024] Open
Abstract
Protein homeostasis is the basis of normal life activities, and the proteasome family plays an extremely important function in this process. The proteasome 20S is a concentric circle structure with two α rings and two β rings overlapped. The proteasome 20S can perform both ATP-dependent and non-ATP-dependent ubiquitination proteasome degradation by binding to various subunits (such as 19S, 11S, and 200 PA), which is performed by its active subunit β1, β2, and β5. The proteasome can degrade misfolded, excess proteins to maintain homeostasis. At the same time, it can be utilized by tumors to degrade over-proliferate and unwanted proteins to support their growth. Proteasomes can affect the development of tumors from several aspects including tumor signaling pathways such as NF-κB and p53, cell cycle, immune regulation, and drug resistance. Proteasome-encoding genes have been found to be overexpressed in a variety of tumors, providing a potential novel target for cancer therapy. In addition, proteasome inhibitors such as bortezomib, carfilzomib, and ixazomib have been put into clinical application as the first-line treatment of multiple myeloma. More and more studies have shown that it also has different therapeutic effects in other tumors such as hepatocellular carcinoma, non-small cell lung cancer, glioblastoma, and neuroblastoma. However, proteasome inhibitors are not much effective due to their tolerance and singleness in other tumors. Therefore, further studies on their mechanisms of action and drug interactions are needed to investigate their therapeutic potential.
Collapse
Affiliation(s)
- Xiangyi Zhou
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Ruqing Xu
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yue Wu
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Li Zhou
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Tingxiu Xiang
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| |
Collapse
|
6
|
Reau NS, Lammert CS, Weinberg EM. Autoimmune hepatitis: Current and future therapies. Hepatol Commun 2024; 8:e0458. [PMID: 38836863 PMCID: PMC11155538 DOI: 10.1097/hc9.0000000000000458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/09/2024] [Indexed: 06/06/2024] Open
Abstract
Autoimmune hepatitis (AIH) is a chronic inflammatory liver disease that can lead to cirrhosis and liver failure. AIH can present in all ages, races, and ethnicities, but it predominantly affects women. As a heterogeneous disease, AIH presents variably in different patients, making diagnosis and treatment a challenge. Currently, the standard treatment for AIH comprises immunosuppressants; however, their long-term use is associated with adverse effects. The pathogenesis of AIH is complex, involving T cells, macrophages, and plasma cells that invade the periportal parenchyma and lead to an inflammatory cascade that can result in liver damage. Due to the complexity of AIH pathogenesis, treatment targets several inflammatory pathways. However, unlike other autoimmune diseases in which targeted treatments have been approved, there has been little progress made in advancing the treatment paradigm for AIH. Major obstacles to progress include challenges in conducting clinical trials, particularly patient recruitment and ensuring a diverse range of backgrounds; poorly defined outcomes to assess treatment response and improved quality of life; and a lack of study designs that account for the stage of disease and variations in treatment. A focus on individualized and steroid-free treatment approaches is needed to improve AIH prognosis and minimize steroid-associated adverse effects.
Collapse
Affiliation(s)
- Nancy S. Reau
- Section of Hepatology, Hepatology Services, Rush University Medical Center, Chicago, Illinois, USA
| | - Craig S. Lammert
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Ethan M. Weinberg
- Division of Gastroenterology & Hepatology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| |
Collapse
|
7
|
Liu T, Xia S. The Proteostasis of Thymic Stromal Cells in Health and Diseases. Protein J 2024; 43:447-463. [PMID: 38622349 DOI: 10.1007/s10930-024-10197-x] [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] [Accepted: 04/05/2024] [Indexed: 04/17/2024]
Abstract
The thymus is the key immune organ for the development of T cells. Different populations of thymic stromal cells interact with T cells, thereby controlling the dynamic development of T cells through their differentiation and function. Proteostasis represents a balance between protein expression, folding, and modification and protein clearance, and its fluctuation usually depends at least partially on related protein regulatory systems for further survival and effects. However, in terms of the substantial requirement for self-antigens and their processing burden, increasing evidence highlights that protein regulation contributes to the physiological effects of thymic stromal cells. Impaired proteostasis may expedite the progression of thymic involution and dysfunction, accompanied by the development of autoimmune diseases or thymoma. Hence, in this review, we summarize the regulation of proteostasis within different types of thymic stromal cells under physiological and pathological conditions to identify potential targets for thymic regeneration and immunotherapy.
Collapse
Affiliation(s)
- Ting Liu
- Department of Immunology, School of Medicine, Jiangsu University, 301, Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Sheng Xia
- Department of Immunology, School of Medicine, Jiangsu University, 301, Xuefu Road, Zhenjiang, Jiangsu, 212013, China.
| |
Collapse
|
8
|
Bhattarai D, Lee SO, Joshi N, Jun SR, Lo S, Jiang L, Gokden N, Parajuli N. Cold Storage Followed by Transplantation Induces Immunoproteasome in Rat Kidney Allografts: Inhibition of Immunoproteasome Does Not Improve Function. KIDNEY360 2024; 5:743-752. [PMID: 38303110 PMCID: PMC11146655 DOI: 10.34067/kid.0000000000000368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 01/12/2024] [Indexed: 02/03/2024]
Abstract
Key Points Cold storage (CS) increases the severity of graft dysfunction in a time-dependent manner, and prolonged CS decreases animal survival. CS plus transplant increases iproeasome levels/assembly in renal allografts; IFN-γ is a potential inducer of the iproteasome. Inhibiting iproteasome ex vivo during renal CS did not confer graft protection after transplantation. Background It is a major clinical challenge to ensure the long-term function of transplanted kidneys. Specifically, the injury associated with cold storage (CS) of kidneys compromises the long-term function of the grafts after transplantation. Therefore, the molecular mechanisms underlying CS-related kidney injury are attractive therapeutic targets to prevent injury and improve long-term graft function. Previously, we found that constitutive proteasome function was compromised in rat kidneys after CS followed by transplantation. Here, we evaluated the role of the immunoproteasome (i proteasome), a proteasome variant, during CS followed by transplantation. Methods Established in vivo rat kidney transplant model with or without CS containing vehicle or iproteasome inhibitor (ONX 0914) was used in this study. The i proteasome function was performed using rat kidney homogenates and fluorescent-based peptide substrate specific to β 5i subunit. Western blotting and quantitative RT-PCR were used to assess the subunit expression/level of the i proteasome (β 5i) subunit. Results We demonstrated a decrease in the abundance of the β 5i subunit of the i proteasome in kidneys during CS, but β 5i levels increased in kidneys after CS and transplant. Despite the increase in β 5i levels and its peptidase activity within kidneys, inhibiting β 5i during CS did not improve graft function after transplantation. Summary These results suggest that the pharmacologic inhibition of immunoproteasome function during CS does not improve graft function or outcome. In light of these findings, future studies targeting immunoproteasomes during both CS and transplantation may define the role of immunoproteasomes on short-term and long-term kidney transplant outcomes.
Collapse
Affiliation(s)
- Dinesh Bhattarai
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Seong-Ok Lee
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Neelam Joshi
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Se-Ran Jun
- Department of Biomedical Informatics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Sorena Lo
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Li Jiang
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Neriman Gokden
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Nirmala Parajuli
- Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- Division of Nephrology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| |
Collapse
|
9
|
De Marchi T, Lai CF, Simmons GM, Goldsbrough I, Harrod A, Lam T, Buluwela L, Kjellström S, Brueffer C, Saal LH, Malmström J, Ali S, Niméus E. Proteomic profiling reveals that ESR1 mutations enhance cyclin-dependent kinase signaling. Sci Rep 2024; 14:6873. [PMID: 38519482 PMCID: PMC10959978 DOI: 10.1038/s41598-024-56412-8] [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: 10/31/2022] [Accepted: 03/06/2024] [Indexed: 03/25/2024] Open
Abstract
Three quarters of all breast cancers express the estrogen receptor (ER, ESR1 gene), which promotes tumor growth and constitutes a direct target for endocrine therapies. ESR1 mutations have been implicated in therapy resistance in metastatic breast cancer, in particular to aromatase inhibitors. ESR1 mutations promote constitutive ER activity and affect other signaling pathways, allowing cancer cells to proliferate by employing mechanisms within and without direct regulation by the ER. Although subjected to extensive genetic and transcriptomic analyses, understanding of protein alterations remains poorly investigated. Towards this, we employed an integrated mass spectrometry based proteomic approach to profile the protein and phosphoprotein differences in breast cancer cell lines expressing the frequent Y537N and Y537S ER mutations. Global proteome analysis revealed enrichment of mitotic and immune signaling pathways in ER mutant cells, while phosphoprotein analysis evidenced enriched activity of proliferation associated kinases, in particular CDKs and mTOR. Integration of protein expression and phosphorylation data revealed pathway-dependent discrepancies (motility vs proliferation) that were observed at varying degrees across mutant and wt ER cells. Additionally, protein expression and phosphorylation patterns, while under different regulation, still recapitulated the estrogen-independent phenotype of ER mutant cells. Our study is the first proteome-centric characterization of ESR1 mutant models, out of which we confirm estrogen independence of ER mutants and reveal the enrichment of immune signaling pathways at the proteomic level.
Collapse
Affiliation(s)
- Tommaso De Marchi
- Division of Surgery, Oncology, and Pathology, Department of Clinical Sciences, Lund University, Solvegatan 19, 22362, Lund, Sweden.
| | - Chun-Fui Lai
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK
| | - Georgia M Simmons
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK
| | - Isabella Goldsbrough
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK
| | - Alison Harrod
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK
| | - Thai Lam
- Division of Surgery, Oncology, and Pathology, Department of Clinical Sciences, Lund University, Solvegatan 19, 22362, Lund, Sweden
| | - Lakjaya Buluwela
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK
| | - Sven Kjellström
- Department of Biochemistry and Structural Biology, Center for Molecular Protein Science, Lund University, Solvegatan 19, 22362, Lund, Sweden
- Swedish National Infrastructure for Biological Mass Spectrometry - BioMS, Lund, Sweden
| | - Christian Brueffer
- Division of Oncology, Department of Clinical Sciences Lund, Lund University, Medicon Village, 22381, Lund, Sweden
| | - Lao H Saal
- Division of Oncology, Department of Clinical Sciences Lund, Lund University, Medicon Village, 22381, Lund, Sweden
| | - Johan Malmström
- Division of Infection Medicine, Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, Klinikgatan 32, 22184, Lund, Sweden
| | - Simak Ali
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK.
| | - Emma Niméus
- Division of Surgery, Oncology, and Pathology, Department of Clinical Sciences, Lund University, Solvegatan 19, 22362, Lund, Sweden.
- Department of Surgery, Skåne University Hospital, Lund, Sweden.
| |
Collapse
|
10
|
Zhou J, Li C, Lu M, Jiang G, Chen S, Li H, Lu K. Pharmacological induction of autophagy reduces inflammation in macrophages by degrading immunoproteasome subunits. PLoS Biol 2024; 22:e3002537. [PMID: 38447109 PMCID: PMC10917451 DOI: 10.1371/journal.pbio.3002537] [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: 02/05/2023] [Accepted: 02/05/2024] [Indexed: 03/08/2024] Open
Abstract
Defective autophagy is linked to proinflammatory diseases. However, the mechanisms by which autophagy limits inflammation remain elusive. Here, we found that the pan-FGFR inhibitor LY2874455 efficiently activated autophagy and suppressed expression of proinflammatory factors in macrophages stimulated by lipopolysaccharide (LPS). Multiplex proteomic profiling identified the immunoproteasome, which is a specific isoform of the 20s constitutive proteasome, as a substrate that is degraded by selective autophagy. SQSTM1/p62 was found to be a selective autophagy-related receptor that mediated this degradation. Autophagy deficiency or p62 knockdown blocked the effects of LY2874455, leading to the accumulation of immunoproteasomes and increases in inflammatory reactions. Expression of proinflammatory factors in autophagy-deficient macrophages could be reversed by immunoproteasome inhibitors, confirming the pivotal role of immunoproteasome turnover in the autophagy-mediated suppression on the expression of proinflammatory factors. In mice, LY2874455 protected against LPS-induced acute lung injury and dextran sulfate sodium (DSS)-induced colitis and caused low levels of proinflammatory cytokines and immunoproteasomes. These findings suggested that selective autophagy of the immunoproteasome was a key regulator of signaling via the innate immune system.
Collapse
Affiliation(s)
- Jiao Zhou
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
- National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
| | - Chunxia Li
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Meng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Gaoyue Jiang
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| | - Shanze Chen
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen People’s Hospital, Shenzhen Institute of Respiratory Diseases, Shenzhen, China
| | - Huihui Li
- West China Second University Hospital, Sichuan University, Chengdu, China
| | - Kefeng Lu
- Department of Neurosurgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and the Research Units of West China, Chinese Academy of Medical Sciences, Chengdu, China
| |
Collapse
|
11
|
Delshad M, Davoodi-Moghaddam Z, Pourbagheri-Sigaroodi A, Faranoush M, Abolghasemi H, Bashash D. Translating mechanisms into therapeutic strategies for immune thrombocytopenia (ITP): Lessons from clinical trials. Thromb Res 2024; 235:125-147. [PMID: 38335568 DOI: 10.1016/j.thromres.2024.02.005] [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: 12/26/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Immune thrombocytopenia (ITP) is an autoimmune disorder that causes a significant reduction in peripheral blood platelet count. Fortunately, due to an increased understanding of ITP, there have been significant improvements in the diagnosis and treatment of these patients. Over the past decade, there have been a variety of proven therapeutic options available for ITP patients, including intravenous immunoglobulins (IVIG), Rituximab, corticosteroids, and thrombopoietin receptor agonists (TPO-RAs). Although the effectiveness of current therapies in treating more than two-thirds of patients, still some patients do not respond well to conventional therapies or fail to achieve long-term remission. Recently, a significant advancement has been made in identifying various mechanisms involved in the pathogenesis of ITP, leading to the development of novel treatments targeting these pathways. It seems that new agents that target plasma cells, Bruton tyrosine kinase, FcRn, platelet desialylation, splenic tyrosine kinase, and classical complement pathways are opening new ways to treat ITP. In this study, we reviewed the pathophysiology of ITP and summarized updates in this population's management and treatment options. We also took a closer look at the 315 ongoing trials to investigate their progress status and compare the effectiveness of interventions. May our comprehensive view of ongoing clinical trials serve as a guiding beacon, illuminating the path towards future trials of different drugs in the treatment of ITP patients.
Collapse
Affiliation(s)
- Mahda Delshad
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Laboratory Sciences, School of Allied Medical Sciences, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Zeinab Davoodi-Moghaddam
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atieh Pourbagheri-Sigaroodi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Faranoush
- Pediatric Growth and Development Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hassan Abolghasemi
- Pediatric Congenital Hematologic Disorders Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
12
|
Lauricella M, Di Liberto D. Special Issue: "Inflammatory Signaling Pathways Involved in Gastrointestinal Diseases". Int J Mol Sci 2024; 25:1287. [PMID: 38279287 PMCID: PMC10816278 DOI: 10.3390/ijms25021287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/28/2024] Open
Abstract
Inflammation is a defensive response of the innate and adaptive immune systems against injury and/or harmful microorganisms to restore homeostasis [...].
Collapse
Affiliation(s)
- Marianna Lauricella
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy
| | - Diana Di Liberto
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Biochemistry, University of Palermo, 90127 Palermo, Italy
| |
Collapse
|
13
|
Burov AV, Rodin AA, Karpov VL, Morozov AV. The Role of Ubiquitin-Proteasome System in the Biology of Stem Cells. BIOCHEMISTRY. BIOKHIMIIA 2023; 88:2043-2053. [PMID: 38462448 DOI: 10.1134/s0006297923120076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 03/12/2024]
Abstract
Selective degradation of cellular proteins by the ubiquitin-proteasome system (UPS) is one of the key regulatory mechanisms in eukaryotic cells. A growing body of evidence indicates that UPS is involved in the regulation of fundamental processes in mammalian stem cells, including proliferation, differentiation, cell migration, aging, and programmed cell death, via proteolytic degradation of key transcription factors and cell signaling proteins and post-translational modification of target proteins with ubiquitin. Studying molecular mechanisms of proteostasis in stem cells is of great importance for the development of new therapeutic approaches aimed at the treatment of autoimmune and neurodegenerative diseases, cancer, and other socially significant pathologies. This review discusses current data on the UPS functions in stem cells.
Collapse
Affiliation(s)
- Alexander V Burov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Andrey A Rodin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Vadim L Karpov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Alexey V Morozov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia.
| |
Collapse
|
14
|
Wróbel M, Zuzanna Z, Ołdak Ł, Kalicka A, Mańka G, Kiecka M, Spaczyński RZ, Piekarski P, Banaszewska B, Jakimiuk A, Issat T, Rokita W, Młodawski J, Szubert M, Sieroszewski P, Raba G, Szczupak K, Kluz T, Kluza M, Pierzyński P, Wojtyła C, Lipa M, Warzecha D, Wielgoś M, Sawicki W, Gorodkiewicz E, Laudański P. Evaluation of Proteasome and Immunoproteasome Levels in Plasma and Peritoneal Fluid in Patients with Endometriosis. Int J Mol Sci 2023; 24:14363. [PMID: 37762666 PMCID: PMC10532336 DOI: 10.3390/ijms241814363] [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: 08/05/2023] [Revised: 09/07/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Endometriosis is a chronic disease in which the endometrium cells are located outside the uterine cavity. The aim of this study was to evaluate circulating 20S proteasome and 20S immunoproteasome levels in plasma and peritoneal fluid in women with and without endometriosis in order to assess their usefulness as biomarkers of disease. Concentrations were measured using surface plasmon resonance imaging biosensors. Patients with suspected endometriosis were included in the study-plasma was collected in 112 cases and peritoneal fluid in 75. Based on the presence of endometriosis lesions detected during laparoscopy, patients were divided into a study group (confirmed endometriosis) and a control group (patients without endometriosis). Proteasome and immunoproteasome levels in both the plasma (p = 0.174; p = 0.696, respectively) and the peritoneal fluid (p = 0.909; p = 0.284, respectively) did not differ between those groups. There was a statistically significant difference in the plasma proteasome levels between patients in the control group and those with mild (Stage I and II) endometriosis (p = 0.047) and in the plasma immunoproteasome levels in patients with ovarian cysts compared to those without (p = 0.017). The results of our study do not support the relevance of proteasome and immunoproteasome determination as biomarkers of the disease but suggest a potentially active role in the pathogenesis of endometriosis.
Collapse
Affiliation(s)
- Monika Wróbel
- 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, 02-015 Warsaw, Poland
| | - Zielińska Zuzanna
- Bioanalysis Laboratory, Doctoral School of Exact and Natural Science, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland; (Z.Z.); (Ł.O.)
| | - Łukasz Ołdak
- Bioanalysis Laboratory, Doctoral School of Exact and Natural Science, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland; (Z.Z.); (Ł.O.)
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland;
| | - Aleksandra Kalicka
- Faculty of Medicine, Medical University of Warsaw, Żwirki i Wigury 61, 02-091 Warsaw, Poland;
| | - Grzegorz Mańka
- Angelius Provita Hospital, 40-611 Katowice, Poland; (G.M.); (M.K.)
| | - Mariusz Kiecka
- Angelius Provita Hospital, 40-611 Katowice, Poland; (G.M.); (M.K.)
| | - Robert Z. Spaczyński
- Center for Gynecology, Obstetrics and Infertility Treatment Pastelova, 60-198 Poznan, Poland;
| | - Piotr Piekarski
- Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics and Gynecological Oncology, Poznan University of Medical Sciences, 61-701 Poznan, Poland;
| | - Beata Banaszewska
- Chair and Department of Laboratory Diagnostics, Poznan University of Medical Sciences, 61-701 Poznan, Poland;
| | - Artur Jakimiuk
- Department of Reproductive Health, Institute of Mother and Child in Warsaw, 01-211 Warsaw, Poland;
- Department of Obstetrics and Gynecology, Central Clinical Hospital of the Ministry of Interior, 02-507 Warsaw, Poland
| | - Tadeusz Issat
- Department of Obstetrics and Gynecology, Institute of Mother and Child in Warsaw, 01-211 Warsaw, Poland;
| | - Wojciech Rokita
- Collegium Medicum, Jan Kochanowski University in Kielce, 25-516 Kielce, Poland (J.M.)
- Clinic of Obstetrics and Gynecology, Provincial Combined Hospital in Kielce, 25-736 Kielce, Poland
| | - Jakub Młodawski
- Collegium Medicum, Jan Kochanowski University in Kielce, 25-516 Kielce, Poland (J.M.)
- Clinic of Obstetrics and Gynecology, Provincial Combined Hospital in Kielce, 25-736 Kielce, Poland
| | - Maria Szubert
- Department of Gynecology and Obstetrics, Medical University of Lodz, 90-419 Lodz, Poland; (M.S.); (P.S.)
- Department of Surgical Gynecology and Oncology, Medical University of Lodz, 90-419 Lodz, Poland
| | - Piotr Sieroszewski
- Department of Gynecology and Obstetrics, Medical University of Lodz, 90-419 Lodz, Poland; (M.S.); (P.S.)
- Department of Fetal Medicine and Gynecology, Medical University of Lodz, 90-419 Lodz, Poland
| | - Grzegorz Raba
- Clinic of Obstetric and Gynecology in Przemysl, 37-700 Przemysl, Poland; (G.R.); (K.S.)
- Department of Obstetrics and Gynecology, University of Rzeszow, 35-310 Rzeszow, Poland
| | - Kamil Szczupak
- Clinic of Obstetric and Gynecology in Przemysl, 37-700 Przemysl, Poland; (G.R.); (K.S.)
- Department of Obstetrics and Gynecology, University of Rzeszow, 35-310 Rzeszow, Poland
| | - Tomasz Kluz
- Department of Gynecology, Gynecology Oncology and Obstetrics, Institute of Medical Sciences, Medical College of Rzeszow University, 35-310 Rzeszow, Poland; (T.K.); (M.K.)
| | - Marek Kluza
- Department of Gynecology, Gynecology Oncology and Obstetrics, Institute of Medical Sciences, Medical College of Rzeszow University, 35-310 Rzeszow, Poland; (T.K.); (M.K.)
| | - Piotr Pierzyński
- OVIklinika Infertility Center, 31 Połczyńska Street, 01-377 Warsaw, Poland; (P.P.); (D.W.)
| | - Cezary Wojtyła
- OVIklinika Infertility Center, 31 Połczyńska Street, 01-377 Warsaw, Poland; (P.P.); (D.W.)
| | - Michał Lipa
- City South Hospital Warsaw, 02-781 Warsaw, Poland;
| | - Damian Warzecha
- OVIklinika Infertility Center, 31 Połczyńska Street, 01-377 Warsaw, Poland; (P.P.); (D.W.)
- City South Hospital Warsaw, 02-781 Warsaw, Poland;
| | - Mirosław Wielgoś
- Premium Medical Clinic, 04-359 Warsaw, Poland;
- Medical Faculty, Lazarski University, 02-662 Warsaw, Poland
| | - Włodzimierz Sawicki
- Department of Obstetrics, Gynecology and Gynecological Oncology, Medical University of Warsaw, 03-242 Warsaw, Poland;
| | - Ewa Gorodkiewicz
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland;
| | - Piotr Laudański
- OVIklinika Infertility Center, 31 Połczyńska Street, 01-377 Warsaw, Poland; (P.P.); (D.W.)
- Department of Obstetrics, Gynecology and Gynecological Oncology, Medical University of Warsaw, 03-242 Warsaw, Poland;
- Women’s Health Research Institute, Calisia University, 62-800 Kalisz, Poland
| |
Collapse
|
15
|
Nguyen HD, Kim YE, Nhat Nguyen LT, Kwak IH, Lee YK, Kim YJ, Hai Nguyen TT, Pham HN, Ma HI. Upregulation of immunoproteasome PSMB8 is associated with Parkinson's disease. Parkinsonism Relat Disord 2023; 114:105797. [PMID: 37562243 DOI: 10.1016/j.parkreldis.2023.105797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 08/03/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Immunoproteasome, a part of ubiquitin-proteasome system, is involved in immune response as well as protein degradation. However, the relationship between immunoproteasome and Parkinson's disease (PD) was not evaluated clearly. We hypothesized that the shift of immunoproteasome attributes to PD pathogenesis due to its role in inflammation and protein homeostasis. OBJECTIVE To determine whether immunoproteasome in peripheral blood mononuclear cells (PBMC) and brain is expressed differently between patients with PD and healthy controls (HC). METHODS Blood samples were collected from 19 HC to 40 patients with PD of comparable ages. Peripheral blood mononuclear cells were isolated and followed by RT-qPCR to measure the mRNA levels of three catalytic subunits of immunoproteasome, namely, PSMB8, PSMB9, and PSMB10. Then, the protein levels of each subunit were measured by western blot. Finally, we confirmed the altered immunoproteasome subunit in the post-mortem human brain of PD. RESULTS In PBMCs, PSMB8 mRNA expression of PD group significantly increased compared to HC (p = 0.004), whereas PSMB9 and PSMB10 mRNA were not different between the PD and HC. The ratio of PSMB10 and PSMB8 mRNA (PSMB10/8 ratio) also reflected the significant difference between the PD and HC (p = 0.002). The PSMB10/8 ratio was well correlated with the UPDRS total and Part III score in the early stage of PD (Hoehn and Yahr ≤2.5) or drug-naïve PD subgroups. In terms of the protein level of immunoproteasome subunits in PBMCs, the increase of PSMB8 protein was observed in PD compared to HC (p = 0.0009), while PSMB9 and PSMB10 were not different between groups. Finally, we confirmed that immunoproteasome PSMB8 was expressed abundantly in the postmortem PD brain compared with normal control. CONCLUSION Our novel findings implicate that immunoproteasome PSMB8 is engaged in PD pathomechanism.
Collapse
Affiliation(s)
- Huu Dat Nguyen
- Department of Medical Sciences, Graduate School of Hallym University, Chuncheon, Gangwon, 24252, South Korea; Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea
| | - Young Eun Kim
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea; Hallym Neurological Institute, Hallym University, Anyang, Gyeonggi, 14068, South Korea.
| | - Linh Thi Nhat Nguyen
- Department of Medical Sciences, Graduate School of Hallym University, Chuncheon, Gangwon, 24252, South Korea; Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea
| | - In Hee Kwak
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea; Hallym Neurological Institute, Hallym University, Anyang, Gyeonggi, 14068, South Korea
| | - Yoon Kyoung Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea
| | - Yun Joong Kim
- Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi, South Korea
| | - Thanh Thi Hai Nguyen
- Department of Medical Sciences, Graduate School of Hallym University, Chuncheon, Gangwon, 24252, South Korea; Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea
| | - Hong Ngoc Pham
- Department of Medical Sciences, Graduate School of Hallym University, Chuncheon, Gangwon, 24252, South Korea; Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea
| | - Hyeo-Il Ma
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, Gyeonggi, 14068, South Korea; Hallym Neurological Institute, Hallym University, Anyang, Gyeonggi, 14068, South Korea
| |
Collapse
|
16
|
Fan S, Liu Y, Lin Z, Zhang Y, Zhang N, Zhao Y, Zhou J, Mao A, Wang L, Feng Y, He X, Wang L, Pan Q. ZNF655 promotes the progression of hepatocellular carcinoma through PSMB8. Cell Biol Int 2023; 47:1535-1546. [PMID: 37272200 DOI: 10.1002/cbin.12050] [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: 06/20/2022] [Revised: 04/18/2023] [Accepted: 05/10/2023] [Indexed: 06/06/2023]
Abstract
Hepatocellular carcinoma (HCC) is a type of liver cancer that is associated with high mortality rates. This study aims to investigate the role of ZNF655, a member of the zinc finger protein family, in the development of HCC. Immunohistochemical staining analysis was conducted to evaluate the expression of ZNF655 in HCC patient samples. Lentivirus-mediated ZNF655 knockdown was established in HCC cell lines (BEL-7402 and HCCLM3). The effects of ZNF655 on different aspects of HCC cell behavior such as proliferation, apoptosis, cycle, migration and tumor formation were examined. Downstream targets of ZNF655 in HCC were identified and verified through loss/gain-of-function experiments. Clinically, ZNF655 expression was elevated in HCC and increased with the severity of the disease. Functionally, inhibition of ZNF655 expression reduced the progression of HCC cells by decreasing proliferation, causing apoptosis, arresting cell cycle retention in G2, suppressing migration, and attenuating tumor formation in mice. Mechanistically, the proteasome subunit beta type-8 (PSMB8) was found to be co-expressed with ZNF655 in HCC, and PSMB8 knockdown weakened the promotion of ZNF655 overexpression on HCC. In summary, these findings suggest that ZNF655 promotes the progression of HCC through PSMB8, and inhibition of its expression may be a promising therapeutic target for HCC.
Collapse
Affiliation(s)
- Shasha Fan
- Department of Oncology, The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan, China
| | - Yu Liu
- Department of Pathology, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - Zhenhai Lin
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yongfa Zhang
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ning Zhang
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yiming Zhao
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jiaming Zhou
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Anrong Mao
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Longrong Wang
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yun Feng
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xigan He
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lu Wang
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qi Pan
- Department of Hepatic Surgery, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| |
Collapse
|
17
|
Miyamoto Y, Akiyama T, Kato R, Sawayama H, Ogawa K, Yoshida N, Baba H. Prognostic Significance of Systemic Inflammation Indices by K-ras Status in Patients With Metastatic Colorectal Cancer. Dis Colon Rectum 2023; 66:e809-e817. [PMID: 35195557 DOI: 10.1097/dcr.0000000000002392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Systemic inflammation markers are useful prognostic indicators for metastatic colorectal cancer. However, the influence of K-ras genotypes on these markers in patients with metastatic colorectal cancer is unclear. OBJECTIVE This study aimed to evaluate the associations between systems of evaluating pretreatment systemic inflammation and outcomes according to K-ras genotypes in patients with metastatic colorectal cancer. DESIGN This was a retrospective study. SETTINGS This study was conducted at a university hospital. PATIENTS This study included a total of 272 patients ( K-ras wild type: K-ras mutant = 169:103) who received first-line systemic chemotherapy for metastatic colorectal cancer. MAIN OUTCOME MEASURES We retrospectively calculated 8 systemic inflammation indices: neutrophil/lymphocyte ratio, platelet/lymphocyte ratio, lymphocyte/monocyte ratio, prognostic nutritional index, Glasgow prognostic score, Naples prognostic score, systemic inflammation score, and systemic immune-inflammation index. Patients were categorized into high or low groups for each index. The prognostic relevance of these indices for overall survival was evaluated according to the K-ras genotype. RESULTS Kaplan-Meier survival analyses showed that median overall survival significantly differed between the high and low groups for all indices in the K-ras wild-type group but not in the K-ras mutant group, except for Glasgow prognostic score and lymphocyte/monocyte ratio. Multivariate Cox regression analyses identified all indices as independent prognostic factors. In the K-ras wild-type group, all indices except platelet/lymphocyte ratio had strong prognostic effects, but not in the K-ras mutant group. Interaction tests indicated that K-ras genotype significantly influenced the prognostic impacts of the neutrophil/lymphocyte ratio ( p = 0.042), prognostic nutritional index ( p = 0.048), Naples prognostic score ( p < 0.001), and systemic immune-inflammation index ( p = 0.004). LIMITATIONS A major limitation of this study is the lack of external validation. CONCLUSIONS The prognostic significance of systemic inflammation indices is more useful in patients with K-ras wild-type metastatic colorectal cancer than those with K-ras mutant cancer. See Video Abstract at http://links.lww.com/DCR/B921 . IMPORTANCIA PRONSTICA DE LOS NDICES DE INFLAMACIN SISTMICA POR ESTADO DE KRAS EN PACIENTES CON CNCER COLORRECTAL METASTSICO ANTECEDENTES:Los marcadores de inflamación sistémica son indicadores de pronósticos útiles para el cáncer colorrectal metastásico. Sin embargo, la influencia de los genotipos KRAS en estos marcadores en pacientes con cáncer colorrectal metastásico no está clara.OBJETIVO:Evaluamos las asociaciones entre los sistemas de evaluación de la inflamación sistémica previa al tratamiento y los resultados según los genotipos K-ras en pacientes con cáncer colorrectal metastásico.AJUSTE:Este estudio se realizó en un hospital universitario.DISEÑO:Este fue un estudio retrospectivo.PACIENTES:Un total de 272 pacientes (K-ras wildtype [K-raswt]:mutant [K-rasMut] = 169:103) que recibieron quimioterapia sistémica de primera línea para el cáncer colorrectal metastásico.PRINCIPALES MEDIDAS DE RESULTADO:Calculamos retrospectivamente 8 índices de inflamación sistémica: proporción de neutrófilos/linfocitos, proporción de plaquetas/linfocitos, proporción de linfocitos/monocitos, índice nutricional pronóstico, puntuación de pronóstico de Glasgow, puntuación de pronóstico de Nápoles, puntuación de inflamación sistémica e índice de inmunoinflamación sistémica. Los pacientes se clasificaron en grupos altos o bajos para cada índice. La relevancia pronóstica de estos índices para la supervivencia global se evaluó según el genotipo K-ras.RESULTADOS:Los análisis de supervivencia de Kaplan-Meier mostraron que la mediana de la supervivencia general difería significativamente entre los grupos alto y bajo para todos los índices en el grupo K-raswt pero no en el grupo K-rasMut, excepto para la puntuación de pronóstico de Glasgow y la proporción de linfocitos/monocitos. Los análisis de regresión multivariable de Cox identificaron todos los índices como factores pronósticos independientes. En el grupo K-raswt, todos los índices, excepto el cociente plaquetas/linfocitos, tuvieron fuertes efectos pronósticos, pero no en el grupo K-rasMut. Las pruebas de interacción indicaron que el genotipo K-ras influyó significativamente en los impactos pronósticos de la proporción de neutrófilos/linfocitos (p = 0,042), el índice nutricional pronóstico (p = 0,048), la puntuación pronóstica de Nápoles (p < 0,001) y el índice de inflamación inmunológica sistémica (p = 0,004).LIMITACIÓN:Una limitación importante de este estudio es la falta de validación externa.CONCLUSIÓNES:La importancia pronóstica de los índices de inflamación sistémica es más útil en pacientes con cáncer colorrectal metastásico K-raswt. Consulte Video Resumen en http://links.lww.com/DCR/B921 . (Traducción-Dr. Yolanda Colorado ).
Collapse
Affiliation(s)
- Yuji Miyamoto
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takahiko Akiyama
- Department of Gastrointestinal Cancer Biology, International Research Centre for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Rikako Kato
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Sawayama
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Katsuhiro Ogawa
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Naoya Yoshida
- Division of Translational Research and Advanced Treatment Against Gastrointestinal Cancer, Kumamoto University, Kumamoto, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| |
Collapse
|
18
|
El Filaly H, Desterke C, Outlioua A, Badre W, Rabhi M, Karkouri M, Riyad M, Khalil A, Arnoult D, Akarid K. CXCL-8 as a signature of severe Helicobacter pylori infection and a stimulator of stomach region-dependent immune response. Clin Immunol 2023; 252:109648. [PMID: 37209806 DOI: 10.1016/j.clim.2023.109648] [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: 08/18/2022] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 05/22/2023]
Abstract
Helicobacter pylori infection is involved in development of diverse gastro-pathologies. Our aim is to investigate potential signature of cytokines-chemokine levels (IL-17A, IL-1β, and CXCL-8) in H. pylori-infected patients and their impact on immune response in both corpus and antrum. Multivariate level analysis with machine learning model were carried out using cytokines/chemokine levels of infected Moroccan patients. In addition, Geo dataset was used to run enrichment analysis following CXCL-8 upregulation. Our analysis showed that combination of cytokines-chemokine levels allowed prediction of positive H. pylori density score with <5% of miss-classification error, with fundus CXCL-8 being the most important variable for this discrimination. Furthermore, CXCL-8 dependent expression profile was mainly associated to IL6/JAK/STAT3 signaling in the antrum, interferons alpha and gamma responses in the corpus and commonly induced transcriptional /proliferative activities. To conclude, CXCL-8 level might be a signature of Moroccan H. pylori-infected patients and an inducer of regional-dependent immune response at the gastric level. Larger trials must be carried out to validate the relevance of these results for diverse populations.
Collapse
Affiliation(s)
- Hajar El Filaly
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
| | - Christophe Desterke
- INSERM UMRS-1311, Faculty of Medicine, University of Paris-Saclay, Villejuif, France; Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
| | - Ahmed Outlioua
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco
| | - Wafaa Badre
- Gastroenterology Department, CHU IbnRochd, Casablanca, Morocco
| | - Moncef Rabhi
- Diagnostic Center, Hôpital Militaire d'Instruction Mohammed V, Mohammed V University, Rabat, Morocco
| | - Mehdi Karkouri
- Laboratory of Pathological Anatomy, CHU Ibn Rochd/Faculty of Medicine and Pharmacy, UH2C, Casablanca, Morocco
| | - Myriam Riyad
- Research Team on Immunopathology of Infectious and Systemic Diseases, Laboratory of Cellular and Molecular Pathology, Faculty of Medicine and Pharmacy, UH2C, Casablanca, Morocco
| | - Abdelouahed Khalil
- Research Center on Aging, Faculty of Medicine and Health Sciences, Department of Medicine, University of Sherbrooke, Sherbrooke, Quebec, Canada
| | - Damien Arnoult
- INSERM, UMR_S 1197, Hôpital Paul Brousse, Villejuif, France; Université Paris-Saclay, Paris, France
| | - Khadija Akarid
- Biochemistry, Biotechnology and Immunophysiopathology Research Team, Health and Environment Laboratory, Ain Chock Faculty of Sciences, Hassan II University of Casablanca, Casablanca, Morocco.
| |
Collapse
|
19
|
Gervais O, Peñaloza C, Gratacap R, Papadopoulou A, Beltrán M, Henderson NC, Houston RD, Hassan MA, Robledo D. Understanding host response to infectious salmon anaemia virus in an Atlantic salmon cell line using single-cell RNA sequencing. BMC Genomics 2023; 24:161. [PMID: 36991327 DOI: 10.1186/s12864-023-09254-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Infectious Salmon Anaemia Virus (ISAV) is an Orthomixovirus that represents a large problem for salmonid aquaculture worldwide. Current prevention and treatment methods are only partially effective. Genetic selection and genome engineering have the potential to develop ISAV resistant salmon stocks. Both strategies can benefit from an improved understanding of the genomic regulation of ISAV pathogenesis. Here, we used single-cell RNA sequencing of an Atlantic salmon cell line to provide the first high dimensional insight into the transcriptional landscape that underpins host-virus interaction during early ISAV infection. RESULTS Salmon head kidney (SHK-1) cells were single-cell RNA sequenced at 24, 48 and 96 h post-ISAV challenge. At 24 h post infection, cells showed expression signatures consistent with viral entry, with genes such as PI3K, FAK or JNK being upregulated relative to uninfected cells. At 48 and 96 h, infected cells showed a clear anti-viral response, characterised by the expression of IFNA2 or IRF2. Uninfected bystander cells at 48 and 96 h also showed clear transcriptional differences, potentially suggesting paracrine signalling from infected cells. These bystander cells expressed pathways such as mRNA sensing, RNA degradation, ubiquitination or proteasome; and up-regulation of mitochondrial ribosome genes also seemed to play a role in the host response to the infection. Correlation between viral and host genes revealed novel genes potentially key for this fish-virus interaction. CONCLUSIONS This study has increased our understanding of the cellular response of Atlantic salmon during ISAV infection and revealed host-virus interactions at the cellular level. Our results highlight various potential key genes in this host-virus interaction, which can be manipulated in future functional studies to increase the resistance of Atlantic salmon to ISAV.
Collapse
Affiliation(s)
- Ophélie Gervais
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Carolina Peñaloza
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Remi Gratacap
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Athina Papadopoulou
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Mariana Beltrán
- Centre for Inflammation Research, the Queen´s Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - Neil C Henderson
- Centre for Inflammation Research, the Queen´s Medical Research Institute, University of Edinburgh, Edinburgh, EH16 4TJ, UK
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road South, Edinburgh, UK
| | - Ross D Houston
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
- Benchmark Genetics, 1 Pioneer Building, Edinburgh Technopole, Penicuik, EH26 0GB, UK
| | - Musa A Hassan
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Diego Robledo
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK.
| |
Collapse
|
20
|
Shafi AM, Végvári Á, Zubarev RA, Penha-Gonçalves C. Brain endothelial cells exposure to malaria parasites links type I interferon signalling to antigen presentation, immunoproteasome activation, endothelium disruption, and cellular metabolism. Front Immunol 2023; 14:1149107. [PMID: 36993973 PMCID: PMC10042232 DOI: 10.3389/fimmu.2023.1149107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 02/27/2023] [Indexed: 03/14/2023] Open
Abstract
IntroductionCerebral malaria (CM) lethality is attributable to induction of brain edema induction but the cellular mechanisms involving brain microvascular endothelium in CM pathogenesis are unexplored.ResultsActivation of the STING-INFb-CXCL10 axis in brain endothelial cells (BECs) is a prominent component of the innate immune response in CM development in mouse models. Using a T cell-reporter system, we show that Type 1 IFN signaling in BECs exposed to Plasmodium berghei-infected erythrocytes (PbA-IE), functionally enhances MHC Class-I antigen presentation through gamma-interferon independent immunoproteasome activation and impacted the proteome functionally related to vesicle trafficking, protein processing/folding and antigen presentation. In vitro assays showed that Type 1 IFN signaling and immunoproteasome activation are also involved in the dysfunction of the endothelial barrier through disturbing gene expression in the Wnt/ß-catenin signaling pathway. We demonstrate that IE exposure induces a substantial increase in BECs glucose uptake while glycolysis blockade abrogates INFb secretion impairing immunoproteasome activation, antigen presentation and Wnt/ß-catenin signaling.DiscussionMetabolome analysis show that energy demand and production are markedly increased in BECs exposed to IE as revealed by enriched content in glucose and amino acid catabolites. In accordance, glycolysis blockade in vivo delayed the clinical onset of CM in mice. Together the results show that increase in glucose uptake upon IE exposure licenses Type 1 IFN signaling and subsequent immunoproteasome activation contributing to enhanced antigen presentation and impairment of endothelial barrier function. This work raises the hypothesis that Type 1 IFN signaling-immunoproteasome induction in BECs contributes to CM pathology and fatality (1) by increasing antigen presentation to cytotoxic CD8+ T cells and (2) by promoting endothelial barrier dysfunction, that likely favor brain vasogenic edema.
Collapse
Affiliation(s)
| | - Ákos Végvári
- Proteomics Biomedicum, Division of Physiological Chemistry I, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
- Division of Physiological Chemistry I, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Roman A. Zubarev
- Division of Physiological Chemistry I, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Carlos Penha-Gonçalves
- Disease Genetics, Instituto Gulbenkian de Ciência, Oeiras, Portugal
- *Correspondence: Carlos Penha-Gonçalves,
| |
Collapse
|
21
|
Dafun AS, Živković D, Leon-Icaza SA, Möller S, Froment C, Bonnet D, de Jesus AA, Alric L, Quaranta-Nicaise M, Ferrand A, Cougoule C, Meunier E, Burlet-Schiltz O, Ebstein F, Goldbach-Mansky R, Krüger E, Bousquet MP, Marcoux J. Establishing 20S Proteasome Genetic, Translational and Post-Translational Status from Precious Biological and Patient Samples with Top-Down MS. Cells 2023; 12:cells12060844. [PMID: 36980185 PMCID: PMC10047880 DOI: 10.3390/cells12060844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/23/2023] [Accepted: 02/27/2023] [Indexed: 03/11/2023] Open
Abstract
The mammalian 20S catalytic core of the proteasome is made of 14 different subunits (α1-7 and β1-7) but exists as different subtypes depending on the cell type. In immune cells, for instance, constitutive catalytic proteasome subunits can be replaced by the so-called immuno-catalytic subunits, giving rise to the immunoproteasome. Proteasome activity is also altered by post-translational modifications (PTMs) and by genetic variants. Immunochemical methods are commonly used to investigate these PTMs whereby protein-tagging is necessary to monitor their effect on 20S assembly. Here, we present a new miniaturized workflow combining top-down and bottom-up mass spectrometry of immunopurified 20S proteasomes that analyze the proteasome assembly status as well as the full proteoform footprint, revealing PTMs, mutations, single nucleotide polymorphisms (SNPs) and induction of immune-subunits in different biological samples, including organoids, biopsies and B-lymphoblastoid cell lines derived from patients with proteasome-associated autoinflammatory syndromes (PRAAS). We emphasize the benefits of using top-down mass spectrometry in preserving the endogenous conformation of protein modifications, while enabling a rapid turnaround (1 h run) and ensuring high sensitivity (1–2 pmol) and demonstrate its capacity to semi-quantify constitutive and immune proteasome subunits.
Collapse
Affiliation(s)
- Angelique Sanchez Dafun
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
| | - Dušan Živković
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
| | - Stephen Adonai Leon-Icaza
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
| | - Sophie Möller
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Carine Froment
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
| | - Delphine Bonnet
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, Université de Toulouse III—Paul Sabatier (UPS), 31300 Toulouse, France
- Internal Medicine Department of Digestive Disease, Rangueil Hospital, Université de Toulouse III—Paul Sabatier (UPS), 31400 Toulouse, France
| | - Adriana Almeida de Jesus
- Translational Autoinflammatory Diseases Section, LCIM, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Laurent Alric
- Internal Medicine Department of Digestive Disease, Rangueil Hospital, Université de Toulouse III—Paul Sabatier (UPS), 31400 Toulouse, France
| | - Muriel Quaranta-Nicaise
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, Université de Toulouse III—Paul Sabatier (UPS), 31300 Toulouse, France
| | - Audrey Ferrand
- IRSD, Université de Toulouse, INSERM, INRAE, ENVT, Université de Toulouse III—Paul Sabatier (UPS), 31300 Toulouse, France
| | - Céline Cougoule
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
| | - Etienne Meunier
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
| | - Odile Burlet-Schiltz
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
| | - Frédéric Ebstein
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Raphaela Goldbach-Mansky
- Translational Autoinflammatory Diseases Section, LCIM, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Elke Krüger
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Marie-Pierre Bousquet
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
- Correspondence: (M.-P.B.); (J.M.)
| | - Julien Marcoux
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, Université Toulouse III—Paul Sabatier (UPS), 31077 Toulouse, France
- Correspondence: (M.-P.B.); (J.M.)
| |
Collapse
|
22
|
Alfredsson J, Fabrik I, Gorreja F, Caër C, Sihlbom C, Block M, Börjesson LG, Lindskog EB, Wick MJ. Isobaric labeling-based quantitative proteomics of FACS-purified immune cells and epithelial cells from the intestine of Crohn's disease patients reveals proteome changes of potential importance in disease pathogenesis. Proteomics 2023; 23:e2200366. [PMID: 36479858 DOI: 10.1002/pmic.202200366] [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: 09/20/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022]
Abstract
Crohn's disease (CD) is a chronic condition characterized by recurrent flares of inflammation in the gastrointestinal tract. Disease etiology is poorly understood and is characterized by dysregulated immune activation that progressively destroys intestinal tissue. Key cellular compartments in disease pathogenesis are the intestinal epithelial layer and its underlying lamina propria. While the epithelium contains predominantly epithelial cells, the lamina propria is enriched in immune cells. Deciphering proteome changes in different cell populations is important to understand CD pathogenesis. Here, using isobaric labeling-based quantitative proteomics, we perform an exploratory study to analyze in-depth proteome changes in epithelial cells, immune cells and stromal cells in CD patients compared to controls using cells purified by FACS. Our study revealed increased proteins associated with neutrophil degranulation and mitochondrial metabolism in immune cells of CD intestinal mucosa. We also found upregulation of proteins involved in glycosylation and secretory pathways in epithelial cells of CD patients, while proteins involved in mitochondrial metabolism were reduced. The distinct alterations in protein levels in immune- versus epithelial cells underscores the utility of proteome analysis of defined cell types. Moreover, our workflow allowing concomitant assessment of cell-type specific changes on an individual basis enables deeper insight into disease pathogenesis.
Collapse
Affiliation(s)
- Johannes Alfredsson
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Ivo Fabrik
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden.,Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Frida Gorreja
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Charles Caër
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Carina Sihlbom
- Proteomics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Mattias Block
- Department of Surgery, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Lars G Börjesson
- Department of Surgery, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Elinor Bexe Lindskog
- Department of Surgery, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Mary Jo Wick
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
23
|
Geoffroy K, Araripe Saraiva B, Viens M, Béland D, Bourgeois-Daigneault MC. Increased expression of the immunoproteasome subunits PSMB8 and PSMB9 by cancer cells correlate with better outcomes for triple-negative breast cancers. Sci Rep 2023; 13:2129. [PMID: 36746983 PMCID: PMC9902398 DOI: 10.1038/s41598-023-28940-2] [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: 10/17/2022] [Accepted: 01/27/2023] [Indexed: 02/08/2023] Open
Abstract
Proteasome dependency is a feature of many cancers that can be targeted by proteasome inhibitors. For some cancer types, notably breast cancer and triple-negative breast cancer (TNBC), high mRNA expression of a modified form of the proteasome, called the immunoproteasome (ImP), correlates with better outcomes and higher expression of one ImP subunit was associated with slower tumor growth in a small patient cohort. While these findings are in line with an anti-tumoral role of the ImP in breast cancer, studies investigating ImP expression at the protein level in large patient cohorts are lacking. Furthermore, while ImPs can be found in both immune and non-immune cells, the cellular source is often ignored in correlative studies. In order to determine the impact of ImP expression on breast cancer outcomes, we assessed the protein expression and cellular source of the ImP subunits PSMB8 and PSMB9 in a cohort of 2070 patients. Our data show a clear correlation between high ImP expression and better outcomes, most notably for TNBC patients and when tumor cells rather than stromal or immune cells express PSMB8 or PSMB9. Our results therefore suggest that ImP expression by tumor cells could be used as prognostic markers of TNBC outcomes.
Collapse
Affiliation(s)
- Karen Geoffroy
- Cancer and Immunopathology Axes, CHUM Research Centre, Montreal, Canada.,Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, University of Montreal, Montreal, Canada.,Institut du Cancer de Montréal, Montreal, Canada
| | - Bruna Araripe Saraiva
- Cancer and Immunopathology Axes, CHUM Research Centre, Montreal, Canada.,Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, University of Montreal, Montreal, Canada.,Institut du Cancer de Montréal, Montreal, Canada
| | - Melissa Viens
- Cancer and Immunopathology Axes, CHUM Research Centre, Montreal, Canada.,Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, University of Montreal, Montreal, Canada.,Institut du Cancer de Montréal, Montreal, Canada
| | - Delphine Béland
- Cancer and Immunopathology Axes, CHUM Research Centre, Montreal, Canada.,Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, University of Montreal, Montreal, Canada.,Institut du Cancer de Montréal, Montreal, Canada
| | - Marie-Claude Bourgeois-Daigneault
- Cancer and Immunopathology Axes, CHUM Research Centre, Montreal, Canada. .,Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, University of Montreal, Montreal, Canada. .,Institut du Cancer de Montréal, Montreal, Canada.
| |
Collapse
|
24
|
Layhadi JA, Moya R, Tan TJ, Lenormand MM, Sharif H, Parkin RV, Vila-Nadal G, Fedina O, Zhu R, Laisuan W, Durham SR, Carnés J, Shamji MH. Single-cell RNA sequencing identifies precise tolerogenic cellular and molecular pathways induced by depigmented-polymerized grass pollen allergen extract. J Allergy Clin Immunol 2023; 151:1357-1370.e9. [PMID: 36649758 DOI: 10.1016/j.jaci.2022.11.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 11/04/2022] [Accepted: 11/28/2022] [Indexed: 01/15/2023]
Abstract
BACKGROUND Immunologic mechanism of action of allergoids remains poorly understood. Previous models of allergenicity and immunogenicity have yielded suboptimal knowledge of these immunotherapeutic vaccine products. Novel single-cell RNA sequencing technology offers a bridge to this gap in knowledge. OBJECTIVE We sought to identify the underpinning tolerogenic molecular and cellular mechanisms of depigmented-polymerized Phleum pratense (Phl p) extract. METHODS The molecular mechanisms underlying native Phl p, depigmented Phl p (DPG-Phl p), and depigmented-polymerized (DPG-POL-Phl p) allergoid were investigated by single-cell RNA sequencing. Allergen-specific TH2A, T follicular helper (Tfh), and IL-10+ regulatory B cells were quantified by flow cytometry in peripheral blood mononuclear cells from 16 grass pollen-allergic and 8 nonatopic control subjects. The ability of Phl p, DPG-Phl p, and DPG-POL-Phl p to elicit FcεRI- and FcεRII-mediated IgE responses was measured by basophil activation test and IgE-facilitated allergen binding assay. RESULTS Analysis revealed that DPG-POL-Phl p downregulated genes associated with TH2 signaling, induced functional regulatory T cells exhibiting immunosuppressive roles through CD52 and Siglec-10, modulated genes encoding immunoproteasome that dysregulate the processing and presentation of antigens to T cells and promoted a shift from IgE toward an IgA1 and IgG responses. In grass pollen-allergic subjects, DPG-POL-Phl p exhibited reduced capacity to elicit proliferation of TH2A, IL-4+ Tfh and IL-21+ Tfh cells while being the most prominent at inducing IL-10+CD19+CD5hi and IL-10+CD19+CD5hiCD38intCD24int regulatory B-cell subsets compared to Phl p (all P < .05). Furthermore, DPG-POL-Phl p demonstrated a hypoallergenic profile through basophil activation and histamine release compared to Phl p (31.54-fold, P < .001). CONCLUSIONS Single-cell RNA sequencing provides an in-depth resolution of the mechanisms underlying the tolerogenic profile of DPG-POL-Phl p.
Collapse
Affiliation(s)
- Janice A Layhadi
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Raquel Moya
- R&D Allergy & Immunology Unit, LETI Pharma SL, Tres Cantos, Madrid, Spain
| | - Tiak Ju Tan
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Madison M Lenormand
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Hanisah Sharif
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Rebecca V Parkin
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Gemma Vila-Nadal
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Oleksandra Fedina
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Rongfei Zhu
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Wannada Laisuan
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Stephen R Durham
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Jerónimo Carnés
- R&D Allergy & Immunology Unit, LETI Pharma SL, Tres Cantos, Madrid, Spain
| | - Mohamed H Shamji
- National Heart and Lung Institute, Imperial College London, London, United Kingdom.
| |
Collapse
|
25
|
Characterization of the innate immune response to Streptococcus pneumoniae infection in zebrafish. PLoS Genet 2023; 19:e1010586. [PMID: 36622851 PMCID: PMC9858863 DOI: 10.1371/journal.pgen.1010586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 01/20/2023] [Accepted: 12/20/2022] [Indexed: 01/10/2023] Open
Abstract
Streptococcus pneumoniae (pneumococcus) is one of the most frequent causes of pneumonia, sepsis and meningitis in humans, and an important cause of mortality among children and the elderly. We have previously reported the suitability of the zebrafish (Danio rerio) larval model for the study of the host-pathogen interactions in pneumococcal infection. In the present study, we characterized the zebrafish innate immune response to pneumococcus in detail through a whole-genome level transcriptome analysis and revealed a well-conserved response to this human pathogen in challenged larvae. In addition, to gain understanding of the genetic factors associated with the increased risk for severe pneumococcal infection in humans, we carried out a medium-scale forward genetic screen in zebrafish. In the screen, we identified a mutant fish line which showed compromised resistance to pneumococcus in the septic larval infection model. The transcriptome analysis of the mutant zebrafish larvae revealed deficient expression of a gene homologous for human C-reactive protein (CRP). Furthermore, knockout of one of the six zebrafish crp genes by CRISPR-Cas9 mutagenesis predisposed zebrafish larvae to a more severe pneumococcal infection, and the phenotype was further augmented by concomitant knockdown of a gene for another Crp isoform. This suggests a conserved function of C-reactive protein in anti-pneumococcal immunity in zebrafish. Altogether, this study highlights the similarity of the host response to pneumococcus in zebrafish and humans, gives evidence of the conserved role of C-reactive protein in the defense against pneumococcus, and suggests novel host genes associated with pneumococcal infection.
Collapse
|
26
|
Scalavino V, Piccinno E, Valentini AM, Mastronardi M, Armentano R, Giannelli G, Serino G. A Novel Mechanism of Immunoproteasome Regulation via miR-369-3p in Intestinal Inflammatory Response. Int J Mol Sci 2022; 23:ijms232213771. [PMID: 36430249 PMCID: PMC9691197 DOI: 10.3390/ijms232213771] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/11/2022] Open
Abstract
The immunoproteasome is a multi-catalytic protein complex expressed in hematopoietic cells. Increased expression of immuno-subunits followed by increased proteasome activities is associated with the pathogenesis of IBD. Therefore, the identification of molecules that could inhibit the activities of this complex has been widely studied. microRNAs are small molecules of non-coding RNA that regulate the expression of target genes. Our purpose was to demonstrate that miR-369-3p is able to reduce the expression of the PSMB9 subunit and consequently modulate the catalytic activities of immunoproteasome. After bioinformatics prediction of the gene target of miR-369-3p, we validated its modulation on PSMB9 expression in the RAW264.7 cell line in vitro. We also found that miR-369-3p indirectly reduced the expression of other immunoproteasome subunits and that this regulation reduced the catalytic functions of the immunoproteasome. Increased levels of PSMB9 were observed in colon samples of acute IBD patients compared to the remission IBD group and control group. Our data suggest that miR-369-3p may be a future alternative therapeutic approach to several compounds currently used for the treatment of inflammatory disorders including IBD.
Collapse
|
27
|
Larsson P, Pettersson D, Engqvist H, Werner Rönnerman E, Forssell-Aronsson E, Kovács A, Karlsson P, Helou K, Parris TZ. Pan-cancer analysis of genomic and transcriptomic data reveals the prognostic relevance of human proteasome genes in different cancer types. BMC Cancer 2022; 22:993. [PMID: 36123629 PMCID: PMC9484138 DOI: 10.1186/s12885-022-10079-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 09/05/2022] [Indexed: 11/10/2022] Open
Abstract
Background The human proteasome gene family (PSM) consists of 49 genes that play a crucial role in cancer proteostasis. However, little is known about the effect of PSM gene expression and genetic alterations on clinical outcome in different cancer forms. Methods Here, we performed a comprehensive pan-cancer analysis of genetic alterations in PSM genes and the subsequent prognostic value of PSM expression using data from The Cancer Genome Atlas (TCGA) containing over 10,000 samples representing up to 33 different cancer types. External validation was performed using a breast cancer cohort and KM plotter with four cancer types. Results The PSM genetic alteration frequency was high in certain cancer types (e.g. 67%; esophageal adenocarcinoma), with DNA amplification being most common. Compared with normal tissue, most PSM genes were predominantly overexpressed in cancer. Survival analysis also established a relationship with PSM gene expression and adverse clinical outcome, where PSMA1 and PSMD11 expression were linked to more unfavorable prognosis in ≥ 30% of cancer types for both overall survival (OS) and relapse-free interval (PFI). Interestingly, PSMB5 gene expression was associated with OS (36%) and PFI (27%), and OS for PSMD2 (42%), especially when overexpressed. Conclusion These findings indicate that several PSM genes may potentially be prognostic biomarkers and novel therapeutic targets for different cancer forms. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-10079-4.
Collapse
Affiliation(s)
- Peter Larsson
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. .,Sahlgrenska Center for Cancer Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Daniella Pettersson
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Sahlgrenska Center for Cancer Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Hanna Engqvist
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Sahlgrenska Center for Cancer Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Elisabeth Werner Rönnerman
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Sahlgrenska Center for Cancer Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Clinical Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Eva Forssell-Aronsson
- Sahlgrenska Center for Cancer Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Medical Radiation Sciences, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anikó Kovács
- Department of Clinical Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Per Karlsson
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Oncology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Khalil Helou
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Sahlgrenska Center for Cancer Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Toshima Z Parris
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Sahlgrenska Center for Cancer Research, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
28
|
Dimasuay KG, Schaunaman N, Berg B, Cervantes D, Kruger E, Heppner FL, Ferrington DA, Chu HW. Airway epithelial immunoproteasome subunit LMP7 protects against rhinovirus infection. Sci Rep 2022; 12:14507. [PMID: 36008456 PMCID: PMC9403975 DOI: 10.1038/s41598-022-18807-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/19/2022] [Indexed: 11/20/2022] Open
Abstract
Immunoproteasomes (IP) serve as an important modulator of immune responses to pathogens and other pathological factors. LMP7/β5i, one of the IP subunits, plays a critical role in autoimmune diseases by downregulating inflammation. Rhinovirus (RV) infection is a major risk factor in the exacerbations of respiratory inflammatory diseases, but whether LMP7 regulates RV-mediated inflammation in the lung particularly in the airway epithelium, the first line of defense against RV infection, remains unclear. In this study, we determined whether airway epithelial LMP7 promotes the resolution of RV-mediated lung inflammation. Inducible airway epithelial-specific LMP7-deficient (conditional knockout, CKO) mice were generated to reveal the in vivo anti-inflammatory and antiviral functions of LMP7. By using LMP7-deficient primary human airway epithelial cells generated by CRISPR-Cas9, we confirmed that airway epithelial LMP7 decreased pro-inflammatory cytokines and viral load during RV infection. Additionally, airway epithelial LMP7 enhanced the expression of a negative immune regulator A20/TNFAIP3 during viral infection that may contribute to the anti-inflammatory function of LMP7. We also discovered that induction of LMP7 by a low dose of polyinosinic:polycytidylic acid (PI:C) reduced RV-mediated inflammation in our CKO mice infected with RV. Our findings suggest that airway epithelial LMP7 has anti-inflammatory and antiviral functions that is critical to the resolution of RV-mediated lung inflammation. Induction of airway epithelial LMP7 may open a novel avenue for therapeutic intervention against RV infection.
Collapse
Affiliation(s)
| | - Niccolette Schaunaman
- grid.240341.00000 0004 0396 0728Department of Medicine, National Jewish Health, Denver, CO USA
| | - Bruce Berg
- grid.240341.00000 0004 0396 0728Department of Medicine, National Jewish Health, Denver, CO USA
| | - Diana Cervantes
- grid.240341.00000 0004 0396 0728Department of Medicine, National Jewish Health, Denver, CO USA
| | - Elke Kruger
- grid.412469.c0000 0000 9116 8976Institute for Medicine Biochemistry and Molecular Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Frank L. Heppner
- grid.6363.00000 0001 2218 4662Department of Neuropathology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Deborah A. Ferrington
- grid.19006.3e0000 0000 9632 6718Doheny Eye Institute, University of California Los Angeles, Pasadena, CA USA
| | - Hong Wei Chu
- Department of Medicine, National Jewish Health, Denver, CO, USA.
| |
Collapse
|
29
|
ER stress and UPR in Alzheimer's disease: mechanisms, pathogenesis, treatments. Cell Death Dis 2022; 13:706. [PMID: 35970828 PMCID: PMC9378716 DOI: 10.1038/s41419-022-05153-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 01/21/2023]
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disorder characterized by gradual loss of memory and cognitive function, which constitutes a heavy burden on the healthcare system globally. Current therapeutics to interfere with the underlying disease process in AD is still under development. Although many efforts have centered on the toxic forms of Aβ to effectively tackle AD, considering the unsatisfactory results so far it is vital to examine other targets and therapeutic approaches as well. The endoplasmic reticulum (ER) stress refers to the build-up of unfolded or misfolded proteins within the ER, thus, perturbing the ER and cellular homeostasis. Emerging evidence indicates that ER stress contributes to the onset and development of AD. A thorough elucidation of ER stress machinery in AD pathology may help to open up new therapeutic avenues in the management of this devastating condition to relieve the cognitive dementia symptoms. Herein, we aim at deciphering the unique role of ER stress in AD pathogenesis, reviewing key findings, and existing controversy in an attempt to summarize plausible therapeutic interventions in the management of AD pathophysiology.
Collapse
|
30
|
Frankowska N, Lisowska K, Witkowski JM. Proteolysis dysfunction in the process of aging and age-related diseases. FRONTIERS IN AGING 2022; 3:927630. [PMID: 35958270 PMCID: PMC9361021 DOI: 10.3389/fragi.2022.927630] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 06/30/2022] [Indexed: 12/20/2022]
Abstract
In this review, we discuss in detail the most relevant proteolytic systems that together with chaperones contribute to creating the proteostasis network that is kept in dynamic balance to maintain overall functionality of cellular proteomes. Data accumulated over decades demonstrate that the effectiveness of elements of the proteostasis network declines with age. In this scenario, failure to degrade misfolded or faulty proteins increases the risk of protein aggregation, chronic inflammation, and the development of age-related diseases. This is especially important in the context of aging-related modification of functions of the immune system.
Collapse
Affiliation(s)
- Natalia Frankowska
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdansk, Gdańsk, Poland
| | - Katarzyna Lisowska
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdansk, Gdańsk, Poland
| | - Jacek M Witkowski
- Department of Physiopathology, Faculty of Medicine, Medical University of Gdansk, Gdańsk, Poland
| |
Collapse
|
31
|
Antigen Cross-Presentation by Murine Proximal Tubular Epithelial Cells Induces Cytotoxic and Inflammatory CD8+ T Cells. Cells 2022; 11:cells11091510. [PMID: 35563816 PMCID: PMC9104549 DOI: 10.3390/cells11091510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 12/11/2022] Open
Abstract
Immune-mediated glomerular diseases are characterized by infiltration of T cells, which accumulate in the periglomerular space and tubulointerstitium in close contact to proximal and distal tubuli. Recent studies described proximal tubular epithelial cells (PTECs) as renal non-professional antigen-presenting cells that stimulate CD4+ T-cell activation. Whether PTECs have the potential to induce activation of CD8+ T cells is less clear. In this study, we aimed to investigate the capacity of PTECs for antigen cross-presentation thereby modulating CD8+ T-cell responses. We showed that PTECs expressed proteins associated with cross-presentation, internalized soluble antigen via mannose receptor-mediated endocytosis, and generated antigenic peptides by proteasomal degradation. PTECs induced an antigen-dependent CD8+ T-cell activation in the presence of soluble antigen in vitro. PTEC-activated CD8+ T cells expressed granzyme B, and exerted a cytotoxic function by killing target cells. In murine lupus nephritis, CD8+ T cells localized in close contact to proximal tubuli. We determined enhanced apoptosis in tubular cells and particularly PTECs up-regulated expression of cleaved caspase-3. Interestingly, induction of apoptosis in the inflamed kidney was reduced in the absence of CD8+ T cells. Thus, PTECs have the capacity for antigen cross-presentation thereby inducing cytotoxic CD8+ T cells in vitro, which may contribute to the pathology of immune-mediated glomerulonephritis.
Collapse
|
32
|
Xu C, Yang J, Cao J, Jiang N, Zhou Y, Zeng L, Zhong Q, Fan Y. The quantitative proteomic analysis of rare minnow, Gobiocypris rarus, infected with virulent and attenuated isolates of grass carp reovirus genotype Ⅱ. FISH & SHELLFISH IMMUNOLOGY 2022; 123:142-151. [PMID: 35219830 DOI: 10.1016/j.fsi.2022.02.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
Grass carp reovirus genotype Ⅱ (GCRV II) causes severe hemorrhagic disease in grass carp and affects the aquaculture industry in China. GCRV Ⅱ isolates have been collected from different epidemic areas in China, and these isolates can lead to different degrees of hemorrhagic symptoms in grass carp. Rare minnow (Gobiocypris rarus) is widely used as a model fish to study the mechanism of hemorrhagic disease because of its high sensitivity to GCRV. In this study, the protein levels in the spleen of rare minnow after infection with GCRV virulent isolate JZ809 and attenuated isolate XT422 were investigated using isobaric tags for relative and absolute quantitation (iTRAQ)-based quantitative proteomics. 109 and 50 differentially expressed proteins (DEPs) in the virulent and attenuated infection groups were obtained, respectively, among which 40 DEPs were identified in both groups. Combining protein expression profiling with gene ontology (GO) annotation, the responses of rare minnow to the two genotypes GCRV Ⅱ in terms of upregulated proteins were similar, focusing on ATP synthesis, in which ATP can serve as a "danger" signal to activate an immunoreaction in eukaryotes. Meanwhile, the virulent genotype JZ809 induced more immunoproteins and increased the levels of ubiquitin-proteasome system members to adapt to virus infection. However, together with a persistent and excessive inflammatory response and declining carbon metabolism, rare minnow presented more severe hemorrhagic disease and mortality after infection with virulent JZ809 than with attenuated XT422. The results provide a valuable information that will increase our understanding of the pathogenesis of viruses with different levels of virulence and the mechanism of interaction between the virus and host. Furthermore, the 6 proteins that were only significantly upregulated in the XT422 infection group all belonged to cluster 2, and 28 of 30 proteins that were only upregulated in JZ809 infection group were clustered into cluster 1. For the downregulated proteins, all DEPs in the XT422 infection group were clustered into cluster 4, and 25 of 39 proteins that were only significantly downregulated in the JZ809 infection group belonged to cluster 3. The results indicated that the DEPs in the attenuated XT422 infection group might be sensitive and their abundance changed more quickly when fish experienced virus infection.
Collapse
Affiliation(s)
- Chen Xu
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
| | - Jie Yang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China; College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - JiaJia Cao
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China; College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Nan Jiang
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
| | - Yong Zhou
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
| | - Lingbing Zeng
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
| | - Qiwang Zhong
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Yuding Fan
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China; College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China.
| |
Collapse
|
33
|
Mete B, Pekbilir E, Bilge BN, Georgiadou P, Çelik E, Sutlu T, Tabak F, Sahin U. Human immunodeficiency virus type 1 impairs sumoylation. Life Sci Alliance 2022; 5:5/6/e202101103. [PMID: 35181598 PMCID: PMC8860096 DOI: 10.26508/lsa.202101103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 12/18/2022] Open
Abstract
The HIV type 1 dampens host cell sumoylation in vitro and reduces the expression of UBA2 protein, a subunit of the SUMO E1–activating enzyme. In vivo, infection in patients is associated with diminished global leukocyte sumoylation activity. During infection, the human immunodeficiency virus type 1 (HIV-1) manipulates host cell mechanisms to its advantage, thereby controlling its replication or latency, and evading immune responses. Sumoylation is an essential post-translational modification that controls vital cellular activities including proliferation, stemness, or anti-viral immunity. SUMO peptides oppose pathogen replication and mediate interferon-dependent anti-viral activities. In turn, several viruses and bacteria attack sumoylation to disarm host immune responses. Here, we show that HIV-1 impairs cellular sumoylation and targets the host SUMO E1–activating enzyme. HIV-1 expression in cultured HEK293 cells or in CD4+ Jurkat T lymphocytes diminishes sumoylation by both SUMO paralogs, SUMO1 and SUMO2/3. HIV-1 causes a sharp and specific decline in UBA2 protein levels, a subunit of the heterodimeric SUMO E1 enzyme, which likely serves to reduce the efficiency of global protein sumoylation. Furthermore, HIV-1–infected individuals display a significant reduction in total leukocyte sumoylation that is uncoupled from HIV-induced cytopenia. Because sumoylation is vital for immune function, T-cell expansion and activity, loss of sumoylation during HIV disease may contribute to immune system deterioration in patients.
Collapse
Affiliation(s)
- Bilgül Mete
- Department of Infectious Diseases and Clinical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Istanbul, Turkey
| | - Emre Pekbilir
- Department of Molecular Biology and Genetics, Bogazici University, Center for Life Sciences and Technologies, Istanbul, Turkey
| | - Bilge Nur Bilge
- Department of Medical Biology, Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Istanbul, Turkey
| | - Panagiota Georgiadou
- Department of Molecular Biology and Genetics, Bogazici University, Center for Life Sciences and Technologies, Istanbul, Turkey
| | - Elif Çelik
- Department of Molecular Biology and Genetics, Bogazici University, Center for Life Sciences and Technologies, Istanbul, Turkey
| | - Tolga Sutlu
- Department of Molecular Biology and Genetics, Bogazici University, Center for Life Sciences and Technologies, Istanbul, Turkey
| | - Fehmi Tabak
- Department of Infectious Diseases and Clinical Microbiology, Istanbul University-Cerrahpasa, Cerrahpasa School of Medicine, Istanbul, Turkey
| | - Umut Sahin
- Department of Molecular Biology and Genetics, Bogazici University, Center for Life Sciences and Technologies, Istanbul, Turkey
| |
Collapse
|
34
|
Single-cell RNA sequencing reveals time- and sex-specific responses of mouse spinal cord microglia to peripheral nerve injury and links ApoE to chronic pain. Nat Commun 2022; 13:843. [PMID: 35149686 PMCID: PMC8837774 DOI: 10.1038/s41467-022-28473-8] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 01/28/2022] [Indexed: 12/27/2022] Open
Abstract
Activation of microglia in the spinal cord following peripheral nerve injury is critical for the development of long-lasting pain hypersensitivity. However, it remains unclear whether distinct microglia subpopulations or states contribute to different stages of pain development and maintenance. Using single-cell RNA-sequencing, we show that peripheral nerve injury induces the generation of a male-specific inflammatory microglia subtype, and demonstrate increased proliferation of microglia in male as compared to female mice. We also show time- and sex-specific transcriptional changes in different microglial subpopulations following peripheral nerve injury. Apolipoprotein E (Apoe) is the top upregulated gene in spinal cord microglia at chronic time points after peripheral nerve injury in mice. Furthermore, polymorphisms in the APOE gene in humans are associated with chronic pain. Single-cell RNA sequencing analysis of human spinal cord microglia reveals a subpopulation with a disease-related transcriptional signature. Our data provide a detailed analysis of transcriptional states of mouse and human spinal cord microglia, and identify a link between ApoE and chronic pain in humans. Microglia subpopulations may differentially contribute to pain. Here, the authors show that peripheral nerve injury induces time- and sex-specific transcriptional changes in mouse spinal cord microglia subpopulations and that ApoE is linked to neuropathic pain hypersensitivity in mice and humans.
Collapse
|
35
|
Leister H, Krause FF, Mahdavi R, Steinhoff U, Visekruna A. The Role of Immunoproteasomes in Tumor-Immune Cell Interactions in Melanoma and Colon Cancer. Arch Immunol Ther Exp (Warsz) 2022; 70:5. [PMID: 35064840 PMCID: PMC8783903 DOI: 10.1007/s00005-022-00644-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/14/2021] [Indexed: 11/27/2022]
Abstract
The participation of proteasomes in vital cellular and metabolic processes that are involved in tumor growth has made this protease complex an attractive target for cancer treatment. In contrast to ubiquitously available constitutive proteasome, the increased enzymatic activity of immunoproteasome is associated with tumor-infiltrating immune cells, such as antigen-presenting cells and T lymphocytes. In various tumors, an effective anti-tumor immunity is provided through generation of tumor-associated antigens by proteasomes, contributing crucially to cancer eradication by T lymphocytes. The knowledge regarding the role of immunoproteasomes in the communication between tumor cells and infiltrating immune cells is limited. Novel data suggest that the involvement of immunoproteasomes in tumorigenesis is more complex than previously thought. In the intestine, in which diverse signals from commensal bacteria and food can contribute to the onset of chronic inflammation and inflammation-driven cancer, immunoproteasomes exert tumorigenic properties by modulating the expression of pro-inflammatory factors. In contrast, in melanoma and non-small cell lung cancer, the immunoproteasome acts against cancer development by promoting an effective anti-tumor immunity. In this review, we highlight the potential of immunoproteasomes to either contribute to inflammatory signaling and tumor development, or to support anti-cancer immunity. Further, we discuss novel therapeutic options for cancer treatments that are associated with modulating the activity of immunoproteasomes in the tumor microenvironment.
Collapse
Affiliation(s)
- Hanna Leister
- Institute for Medical Microbiology and Hygiene, Philipps-University Marburg, Marburg, Germany
| | - Felix F Krause
- Institute for Medical Microbiology and Hygiene, Philipps-University Marburg, Marburg, Germany
| | - Rouzbeh Mahdavi
- Institute for Medical Microbiology and Hygiene, Philipps-University Marburg, Marburg, Germany
| | - Ulrich Steinhoff
- Institute for Medical Microbiology and Hygiene, Philipps-University Marburg, Marburg, Germany
| | - Alexander Visekruna
- Institute for Medical Microbiology and Hygiene, Philipps-University Marburg, Marburg, Germany.
| |
Collapse
|
36
|
Tian W, Chen K, Yan G, Han X, Liu Y, Zhang Q, Liu M. A Novel Prognostic Tool for Glioma Based on Enhancer RNA-Regulated Immune Genes. Front Cell Dev Biol 2022; 9:798445. [PMID: 35127714 PMCID: PMC8811171 DOI: 10.3389/fcell.2021.798445] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/30/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Gliomas are the most malignant tumors of the nervous system. Even though their survival outcome is closely affected by immune-related genes (IRGs) in the tumor microenvironment (TME), the corresponding regulatory mechanism remains poorly characterized. Methods: Specific enhancer RNAs (eRNAs) can be found in tumors, where they control downstream genes. The present study aimed to identify eRNA-regulated IRGs, evaluate their influence on the TME, and use them to construct a novel prognostic model for gliomas. Results: Thirteen target genes (ADCYAP1R1, BMP2, BMPR1A, CD4, DDX17, ELN, FGF13, MAPT, PDIA2, PSMB8, PTPN6, SEMA6C, and SSTR5) were identified and integrated into a comprehensive risk signature, which distinguished two risk subclasses. Discrepancies between these subclasses were compared to explore potential mechanisms attributed to eRNA-regulated genes, including immune cell infiltration, clinicopathological features, survival outcomes, and chemotherapeutic drug sensitivity. Furthermore, the risk signature was used to construct a prognostic tool that was evaluated by calibration curve, clinical utility, Harrell’s concordance index (0.87; 95% CI: 0.84–0.90), and time-dependent receiver operator characteristic curves (AUCs: 0.93 and 0.89 at 3 and 5 years, respectively). The strong reliability and robustness of the established prognostic tool were validated in another independent cohort. Finally, potential subtypes were explored in patients with grade III tumors. Conclusion: Overall, eRNAs were associated with immune-related dysfunctions in the TME. Targeting of IRGs regulated by eRNAs could improve immunotherapeutic/therapeutic outcomes.
Collapse
Affiliation(s)
- Wei Tian
- Department of Biostatistics, School of Public Health, Harbin Medical University, Harbin, China
| | - Kegong Chen
- Department of Cardio-Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Guangcan Yan
- Department of Biostatistics, School of Public Health, Harbin Medical University, Harbin, China
| | - Xinhao Han
- Department of Biostatistics, School of Public Health, Harbin Medical University, Harbin, China
| | - Yanlong Liu
- Department of Colorectal Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Qiuju Zhang
- Department of Biostatistics, School of Public Health, Harbin Medical University, Harbin, China
| | - Meina Liu
- Department of Biostatistics, School of Public Health, Harbin Medical University, Harbin, China
| |
Collapse
|
37
|
Moscvin M, Ho M, Bianchi G. Overcoming drug resistance by targeting protein homeostasis in multiple myeloma. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2021; 4:1028-1046. [PMID: 35265794 PMCID: PMC8903187 DOI: 10.20517/cdr.2021.93] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/09/2021] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
Multiple myeloma (MM) is a plasma cell disorder typically characterized by abundant synthesis of clonal immunoglobulin or free light chains. Although incurable, a deeper understanding of MM pathobiology has fueled major therapeutical advances over the past two decades, significantly improving patient outcomes. Proteasome inhibitors, immunomodulatory drugs, and monoclonal antibodies are among the most effective anti-MM drugs, targeting not only the cancerous cells, but also the bone marrow microenvironment. However, de novo resistance has been reported, and acquired resistance is inevitable for most patients over time, leading to relapsed/refractory disease and poor outcomes. Sustained protein synthesis coupled with impaired/insufficient proteolytic mechanisms makes MM cells exquisitely sensitive to perturbations in protein homeostasis, offering us the opportunity to target this intrinsic vulnerability for therapeutic purposes. This review highlights the scientific rationale for the clinical use of FDA-approved and investigational agents targeting protein homeostasis in MM.
Collapse
Affiliation(s)
- Maria Moscvin
- Department of Medicine, Division of Hematology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Matthew Ho
- Department of Medicine, Mayo Clinic, Rochester, MN 240010, USA
| | - Giada Bianchi
- Department of Medicine, Division of Hematology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| |
Collapse
|
38
|
Zarei Ghobadi M, Mozhgani SH, Erfani Y. Identification of dysregulated pathways underlying HTLV-1-associated myelopathy/tropical spastic paraparesis through co-expression network analysis. J Neurovirol 2021; 27:820-830. [PMID: 33405203 DOI: 10.1007/s13365-020-00919-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 09/29/2020] [Accepted: 10/08/2020] [Indexed: 12/13/2022]
Abstract
Human T cell lymphotropic virus-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a pathogen-caused disease which is associated with the progressive neurological disorder. HAM/TSP affects the expression level of several proteins and dysregulates some biological pathways. To identify the interaction patterns among expressed genes in HAM/TSP patients, weighted gene co-expression network analysis (WGCNA) was applied. Three microarray datasets regarding HAM/TSP were merged, and the co-expression network was constructed among genes. A total of 38 modules were identified. Three preserved modules in HAM/TSP in comparison to the healthy subjects which also had the most connected proteins and enriched in the biological pathways were selected. These modules were enriched in pathways related to immune systems, cell cycle, viral infection, and neuronal systems. Moreover, the involvement of novel immunological-related proteins including C1QB, GBP5, PSME1, SERPING1, and UBE2C; neurological-related proteins including TUBA4A, TUBB8, and TP63; and also proteins including TRPC6, PRKG2, OPRD1, PRKACA, and TUBB4A involved in the cGMP-PKG signaling pathway, thyroid hormone synthesis, and recruitment of mitotic centrosome proteins and complexes were found. Therefore, tracing these proteins and the identified modules can shed light on the pathogenesis mechanism of HAM/TSP and help to find potential therapeutic targets. However, further experimental validation should be performed to confirm the proposed functional players.
Collapse
Affiliation(s)
- Mohadeseh Zarei Ghobadi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Sayed-Hamidreza Mozhgani
- Department of Microbiology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Yousef Erfani
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
39
|
The Function of Immunoproteasomes-An Immunologists' Perspective. Cells 2021; 10:cells10123360. [PMID: 34943869 PMCID: PMC8699091 DOI: 10.3390/cells10123360] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 01/02/2023] Open
Abstract
Proteasomes are responsible for intracellular proteolysis and play an important role in cellular protein homeostasis. Cells of the immune system assemble a specialized form of proteasomes, known as immunoproteasomes, in which the constitutive catalytic sites are replaced for cytokine-inducible homologues. While immunoproteasomes may fulfill all standard proteasome’ functions, they seem specially adapted for a role in MHC class I antigen processing and CD8+ T-cell activation. In this way, they may contribute to CD8+ T-cell-mediated control of intracellular infections, but also to the immunopathogenesis of autoimmune diseases. Starting at the discovery of its catalytic subunits in the genome, here, we review the observations shaping our current understanding of immunoproteasome function, and the consequential novel opportunities for immune intervention.
Collapse
|
40
|
Kuter DJ. Novel therapies for immune thrombocytopenia. Br J Haematol 2021; 196:1311-1328. [PMID: 34611885 DOI: 10.1111/bjh.17872] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/17/2021] [Accepted: 09/19/2021] [Indexed: 01/02/2023]
Abstract
Current therapies for immune thrombocytopenia (ITP) are successful in providing a haemostatic platelet count in over two-thirds of patients. Still, some patients have an inadequate response and there is a need for other therapies. A number of novel therapies for ITP are currently being developed based upon the current pathophysiology of ITP. Many therapies are targetted at reducing platelet destruction by decreasing anti-platelet antibody production by immunosuppression with monoclonal antibodies targetted against CD40, CD38 and the immunoproteasome or physically reducing the anti-platelet antibody concentration by inhibition of the neonatal Fc receptor. Others target the phagocytic system by inhibiting FcγR function with staphylococcal protein A, hypersialylated IgG, polymeric Fc fragments, or Bruton kinase. With a recognition that platelet destruction is also mediated by complement, inhibitors of C1s are also being tested. Inhibition of platelet desialylation may also play a role. Other novel therapies promote platelet production with new oral thrombopoietin receptor agonists or the use of low-level laser light to improve mitochondrial activity and prevent megakaryocyte apoptosis. This review will focus on these novel mechanisms for treating ITP and assess the status of treatments currently under development. Successful new treatments for ITP might also provide a pathway to treat other autoimmune disorders.
Collapse
Affiliation(s)
- David J Kuter
- Hematology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
41
|
Tundo GR, Sbardella D, Oddone F, Kudriaeva AA, Lacal PM, Belogurov AA, Graziani G, Marini S. At the Cutting Edge against Cancer: A Perspective on Immunoproteasome and Immune Checkpoints Modulation as a Potential Therapeutic Intervention. Cancers (Basel) 2021; 13:4852. [PMID: 34638337 PMCID: PMC8507813 DOI: 10.3390/cancers13194852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 01/22/2023] Open
Abstract
Immunoproteasome is a noncanonical form of proteasome with enzymological properties optimized for the generation of antigenic peptides presented in complex with class I MHC molecules. This enzymatic property makes the modulation of its activity a promising area of research. Nevertheless, immunotherapy has emerged as a front-line treatment of advanced/metastatic tumors providing outstanding improvement of life expectancy, even though not all patients achieve a long-lasting clinical benefit. To enhance the efficacy of the currently available immunotherapies and enable the development of new strategies, a broader knowledge of the dynamics of antigen repertoire processing by cancer cells is needed. Therefore, a better understanding of the role of immunoproteasome in antigen processing and of the therapeutic implication of its modulation is mandatory. Studies on the potential crosstalk between proteasome modulators and immune checkpoint inhibitors could provide novel perspectives and an unexplored treatment option for a variety of cancers.
Collapse
Affiliation(s)
| | | | | | - Anna A. Kudriaeva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (A.A.K.)
| | - Pedro M. Lacal
- Laboratory of Molecular Oncology, IDI-IRCCS, 00167 Rome, Italy;
| | - Alexey A. Belogurov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (A.A.K.)
- Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia
| | - Grazia Graziani
- Laboratory of Molecular Oncology, IDI-IRCCS, 00167 Rome, Italy;
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Stefano Marini
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy;
| |
Collapse
|
42
|
Sharma KB, Chhabra S, Aggarwal S, Tripathi A, Banerjee A, Yadav AK, Vrati S, Kalia M. Proteomic landscape of Japanese encephalitis virus-infected fibroblasts. J Gen Virol 2021; 102. [PMID: 34546869 DOI: 10.1099/jgv.0.001657] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Advances in proteomics have enabled a comprehensive understanding of host-pathogen interactions. Here we have characterized Japanese encephalitis virus (JEV) infection-driven changes in the mouse embryonic fibroblast (MEF) proteome. Through tandem mass tagging (TMT)-based mass spectrometry, we describe changes in 7.85 % of the identified proteome due to JEV infection. Pathway enrichment analysis showed that proteins involved in innate immune sensing, interferon responses and inflammation were the major upregulated group, along with the immunoproteasome and poly ADP-ribosylation proteins. Functional validation of several upregulated anti-viral innate immune proteins, including an active cGAS-STING axis, was performed. Through siRNA depletion, we describe a crucial role of the DNA sensor cGAS in restricting JEV replication. Further, many interferon-stimulated genes (ISGs) were observed to be induced in infected cells. We also observed activation of TLR2 and inhibition of TLR2 signalling using TLR1/2 inhibitor CU-CPT22-blocked production of inflammatory cytokines IL6 and TNF-α from virus-infected N9 microglial cells. The major proteins that were downregulated by infection were involved in cell adhesion (collagens), transport (solute carrier and ATP-binding cassette transporters), sterol and lipid biosynthesis. Several collagens were found to be transcriptionally downregulated in infected MEFs and mouse brain. Collectively, our data provide a bird's-eye view into how fibroblast protein composition is rewired following JEV infection.
Collapse
Affiliation(s)
- Kiran Bala Sharma
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, Faridabad, Haryana, India.,Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Simran Chhabra
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Suruchi Aggarwal
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Aarti Tripathi
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Arup Banerjee
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, Faridabad, Haryana, India.,Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Amit Kumar Yadav
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Sudhanshu Vrati
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, Faridabad, Haryana, India.,Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| | - Manjula Kalia
- Regional Centre for Biotechnology, NCR Biotech Science Cluster, Faridabad, Haryana, India.,Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana, India
| |
Collapse
|
43
|
Reboud-Ravaux M. [The proteasome - structural aspects and inhibitors: a second life for a validated drug target]. Biol Aujourdhui 2021; 215:1-23. [PMID: 34397372 DOI: 10.1051/jbio/2021005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Indexed: 02/06/2023]
Abstract
The proteasome is the central component of the adaptable ubiquitin proteasome system (UPS) discovered in the 1980's. It sustains protein homeostasis (proteostasis) under a large variety of physiological and pathological conditions. Its dysregulation has been often associated to various human diseases. Its potential regulation by modulators has emerged as promising avenue to develop treatments of various pathologies. The FDA approval in 2003 of the proteasome inhibitor bortezomib to treat multiple myeloma, then mantle lymphoma in 2006, has considerably increased the clinical interest of proteasome inhibition. Second-generation proteasome inhibitors (carfilzomib and ixazomib) have been approved to overcome bortezomib resistance and improved toxicity profile and route of administration. Selective inhibition of immunoproteasome is a promising approach towards the development of immunomodulatory drugs. The design of these drugs relies greatly on the elucidation of high-resolution structures of the targeted proteasomes. The ATPase-dependent 26S proteasome (2.4 MDa) consists of a 20S proteolytic core and one or two 19S regulatory particles. The 20S core contains three types of catalytic sites. In recent years, due to technical advances especially in atomic cryo-electron microscopy, significant progress has been made in the understanding of 26S proteasome structure and its dynamics. Stepwise conformational changes of the 19S particle induced by ATP hydrolysis lead to substrate translocation, 20S pore opening and processive protein degradation by the 20S proteolytic subunits (2β1, 2β2 and 2β5). A large variety of structurally different inhibitors, both natural products or synthetic compounds targeting immuno- and constitutive proteasomes, has been discovered. The latest advances in this drug discovery are presented. Knowledge about structures, inhibition mechanism and detailed biological regulations of proteasomes can guide strategies for the development of next-generation inhibitors to treat human diseases, especially cancers, immune disorders and pathogen infections. Proteasome activators are also potentially applicable to the reduction of proteotoxic stresses in neurodegeneration and aging.
Collapse
Affiliation(s)
- Michèle Reboud-Ravaux
- Sorbonne Université, Institut de Biologie Paris Seine (IBPS), CNRS UMR 8256, Inserm ERL U1164, 7 quai Saint Bernard, 75252 Paris Cedex 05, France
| |
Collapse
|
44
|
Gatekeepers of the Gut: The Roles of Proteasomes at the Gastrointestinal Barrier. Biomolecules 2021; 11:biom11070989. [PMID: 34356615 PMCID: PMC8301830 DOI: 10.3390/biom11070989] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 12/24/2022] Open
Abstract
The gut epithelial barrier provides the first line of defense protecting the internal milieu from the environment. To circumvent the exposure to constant challenges such as pathogenic infections and commensal bacteria, epithelial and immune cells at the gut barrier require rapid and efficient means to dynamically sense and respond to stimuli. Numerous studies have highlighted the importance of proteolysis in maintaining homeostasis and adapting to the dynamic changes of the conditions in the gut environment. Primarily, proteolytic activities that are involved in immune regulation and inflammation have been examined in the context of the lysosome and inflammasome activation. Yet, the key to cellular and tissue proteostasis is the ubiquitin–proteasome system, which tightly regulates fundamental aspects of inflammatory signaling and protein quality control to provide rapid responses and protect from the accumulation of proteotoxic damage. In this review, we discuss proteasome-dependent regulation of the gut and highlight the pathophysiological consequences of the disarray of proteasomal control in the gut, in the context of aberrant inflammatory disorders and tumorigenesis.
Collapse
|
45
|
Pardy RD, Valbon SF, Cordeiro B, Krawczyk CM, Richer MJ. An epidemic Zika virus isolate suppresses antiviral immunity by disrupting antigen presentation pathways. Nat Commun 2021; 12:4051. [PMID: 34193875 PMCID: PMC8245533 DOI: 10.1038/s41467-021-24340-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 06/14/2021] [Indexed: 12/20/2022] Open
Abstract
Zika virus (ZIKV) has emerged as an important global health threat, with the recently acquired capacity to cause severe neurological symptoms and to persist within host tissues. We previously demonstrated that an early Asian lineage ZIKV isolate induces a highly activated CD8 T cell response specific for an immunodominant epitope in the ZIKV envelope protein in wild-type mice. Here we show that a contemporary ZIKV isolate from the Brazilian outbreak severely limits CD8 T cell immunity in mice and blocks generation of the immunodominant CD8 T cell response. This is associated with a more sustained infection that is cleared between 7- and 14-days post-infection. Mechanistically, we demonstrate that infection with the Brazilian ZIKV isolate reduces the cross-presentation capacity of dendritic cells and fails to fully activate the immunoproteasome. Thus, our study provides an isolate-specific mechanism of host immune evasion by one Brazilian ZIKV isolate, which differs from the early Asian lineage isolate and provides potential insight into viral persistence associated with recent ZIKV outbreaks. The CD8 T cell response to Zika virus is known to be a critical component of the host immune response to infection. Here the authors show a Zika virus isolate specific disruption of antigen processing that impacts the host response and impairs viral clearance providing evidence of isolate specific impacts on the immune response to infection
Collapse
Affiliation(s)
- Ryan D Pardy
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada.,Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada
| | - Stefanie F Valbon
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada.,Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada
| | - Brendan Cordeiro
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada
| | - Connie M Krawczyk
- Department of Metabolism and Nutritional Programming, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Martin J Richer
- Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada. .,Rosalind & Morris Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada. .,Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, USA.
| |
Collapse
|
46
|
de Freitas Chama LL, Ebstein F, Wiesrecker B, Wagh PR, Hammer E, Weiss FU, Junker H, Studencka-Turski M, Lerch MM, Krüger E, Sendler M. Immunoproteasome impairment via β5i/LMP7-deletion leads to sustained pancreatic injury from experimental pancreatitis. J Cell Mol Med 2021; 25:6786-6799. [PMID: 34132031 PMCID: PMC8278072 DOI: 10.1111/jcmm.16682] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 05/04/2021] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
Uncovering potential new targets involved in pancreatitis may permit the development of new therapies and improvement of patient's outcome. Acute pancreatitis is a primarily sterile disease characterized by a severe systemic inflammatory response associated with extensive necrosis and a mortality rate of up to 24%. Considering that one of the reported disease mechanisms comprises the endoplasmic reticulum (ER) stress response and that the immunoproteasome is a key regulator to prevent proteotoxic stress in an inflammatory context, we investigated its role in acute pancreatitis. In this study, we demonstrate that immunoproteasome deficiency by deletion of the β5i/LMP7-subunit leads to persistent pancreatic damage. Interestingly, immunoproteasome-deficient mice unveil increased activity of pancreatic enzymes in the acute disease phase as well as higher secretion of Interleukin-6 and transcript expression of the Interleukin IL-1β, IFN-β cytokines and the CXCL-10 chemokine. Cell death was increased in immunoproteasome-deficient mice, which appears to be due to the increased accumulation of ubiquitin-protein conjugates and prolonged unfolded protein response. Accordingly, our findings suggest that the immunoproteasome plays a protective role in acute pancreatitis via its role in the clearance of damaged proteins and the balance of ER stress responses in pancreatic acini and in macrophages cytokine production.
Collapse
Affiliation(s)
| | - Frédéric Ebstein
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany
| | - Birthe Wiesrecker
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Preshit R Wagh
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Elke Hammer
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany.,German Center for Cardiovascular Research, Partner Site Greifswald, Greifswald, Germany
| | - Frank U Weiss
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Heike Junker
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany
| | - Maja Studencka-Turski
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany
| | - Markus M Lerch
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Elke Krüger
- Institute of Medical Biochemistry and Molecular Biology, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Sendler
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| |
Collapse
|
47
|
Fletcher E, Gordon PM. Obesity-induced alterations to the immunoproteasome: a potential link to intramuscular lipotoxicity. Appl Physiol Nutr Metab 2021; 46:485-493. [PMID: 33186056 DOI: 10.1139/apnm-2020-0655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Although the mechanisms are unclear, inflammation and/or lipotoxicity likely contribute to obese muscle pathology. The immunoproteasome is known to respond to inflammation and oxidative damage and may aid muscle regeneration. We sought to determine whether diet-induced obesity (DIO) influences the immunoproteasome subunits LMP7 and MECL-1 in mouse muscle with and without exercise-induced muscle damage (EIMD). Muscle mass, regeneration, macrophage content and lipid peroxidation (8-isoprostane) were also assessed. Sixty male, 4-week-old C57BL/6J mice were fed a high-fat (HFD) or low-fat diet for 12 weeks. Mice were then subdivided into EIMD or no muscle damage (NMD) groups. The gastrocnemius muscle was excised 1 or 5 days after EIMD, producing 6 groups (n = 10/group). Body mass was greater; however, relative gastrocnemius mass was lower in HFD-fed mice. Despite no macrophage or MECL-1 alterations, LMP7 and 8-isoprostane were increased in obese mice in the NMD and 1 day post-EIMD groups. However, 8-isoprostane was reduced in obese mice 5 days post-EIMD, and accompanied by increased muscle LMP7, MECL-1 and macrophage content. Consequently, DIO may impair the immunoproteasome's ability to control muscle lipid peroxidation but is reversed with eccentric exercise. Although muscle regeneration was unchanged, immunoproteasome dysregulation occurs in obese muscle and may contribute to muscle pathology. Novelty: DIO may impair the intramuscular immunoproteasome response to lipid peroxidation. Acute eccentric exercise may protect obese individuals from muscle lipotoxicity via immunoproteasome upregulation.
Collapse
Affiliation(s)
- Emma Fletcher
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798, USA
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798, USA
| | - Paul M Gordon
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798, USA
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX 76798, USA
| |
Collapse
|
48
|
Finton KAK, Brusniak MY, Jones LA, Lin C, Fioré-Gartland AJ, Brock C, Gafken PR, Strong RK. ARTEMIS: A Novel Mass-Spec Platform for HLA-Restricted Self and Disease-Associated Peptide Discovery. Front Immunol 2021; 12:658372. [PMID: 33986749 PMCID: PMC8111693 DOI: 10.3389/fimmu.2021.658372] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/30/2021] [Indexed: 11/25/2022] Open
Abstract
Conventional immunoprecipitation/mass spectroscopy identification of HLA-restricted peptides remains the purview of specializing laboratories, due to the complexity of the methodology, and requires computational post-analysis to assign peptides to individual alleles when using pan-HLA antibodies. We have addressed these limitations with ARTEMIS: a simple, robust, and flexible platform for peptide discovery across ligandomes, optionally including specific proteins-of-interest, that combines novel, secreted HLA-I discovery reagents spanning multiple alleles, optimized lentiviral transduction, and streamlined affinity-tag purification to improve upon conventional methods. This platform fills a middle ground between existing techniques: sensitive and adaptable, but easy and affordable enough to be widely employed by general laboratories. We used ARTEMIS to catalog allele-specific ligandomes from HEK293 cells for seven classical HLA alleles and compared results across replicates, against computational predictions, and against high-quality conventional datasets. We also applied ARTEMIS to identify potentially useful, novel HLA-restricted peptide targets from oncovirus oncoproteins and tumor-associated antigens.
Collapse
Affiliation(s)
- Kathryn A K Finton
- Division of Basic Science, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Mi-Youn Brusniak
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Lisa A Jones
- Proteomics Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Chenwei Lin
- Proteomics Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Andrew J Fioré-Gartland
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Chance Brock
- Division of Basic Science, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Philip R Gafken
- Proteomics Shared Resource, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Roland K Strong
- Division of Basic Science, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| |
Collapse
|
49
|
Song R, Qiao W, He J, Huang J, Luo Y, Yang T. Proteases and Their Modulators in Cancer Therapy: Challenges and Opportunities. J Med Chem 2021; 64:2851-2877. [PMID: 33656892 DOI: 10.1021/acs.jmedchem.0c01640] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Proteostasis is the process of regulating intracellular proteins to maintain the balance of the cell proteome, which is crucial for cancer cell survival. Several proteases located in the cytoplasm, mitochondria, lysosome, and extracellular environment have been identified as potential antitumor targets because of their involvement in proteostasis. Although the discovery of small-molecule inhibitors targeting proteases faces particular challenges, rapid advances in chemical biology and structural biology, and the new technology of drug discovery have facilitated the development of promising protease modulators. In this review, the protein structure and function of important tumor-related proteases and their inhibitors are presented. We also provide a prospective on advances and the outlook of new drug strategies that target these proteases.
Collapse
Affiliation(s)
- Rao Song
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wenliang Qiao
- Lung Cancer Center, Laboratory of Lung Cancer, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Jun He
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jiasheng Huang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Youfu Luo
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Tao Yang
- State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.,Laboratory of Human Disease and Immunotherapies, West China Hospital, Sichuan University, Chengdu 610041, China
| |
Collapse
|
50
|
Breczko W, Lemancewicz D, Dzięcioł J, Kłoczko J, Bołkun Ł. High immunoproteasome concentration in the plasma of patients with newly diagnosed multiple myeloma treated with bortezomib is predictive of longer OS. Adv Med Sci 2021; 66:21-27. [PMID: 33246214 DOI: 10.1016/j.advms.2020.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/23/2020] [Accepted: 11/17/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE Proteasome inhibitors (PI) bortezomib or carfilzomib among them, play a crucial role in the modern standard therapy for multiple myeloma (MM). In this study, we intended to evaluate whether immunoproteasome (IMP) concentration could act as an effective biomarker which determines the probability of response to treatment with bortezomib, in order to detect groups of patients who are more likely to respond to treatment with PI. MATERIALS AND METHODS In our study, we evaluated IMP concentration in the plasma of 40 patients with monoclonal gammopathy of undetermined significance (MGUS) and 116 patients with newly diagnosed MM during treatment with or without PI. RESULTS The values of all the studied parameters after the applied chemotherapy in the responders' group of patients declined considerably during the consecutive cycles of chemotherapy compared to their initial levels. On the contrary, in the group of non-responders, we observed no change in the measured IMP parameters during the consecutive cycles of therapy. We also showed that higher baseline IMP concentration might indicate longer overall survival (OS) in all patients. CONCLUSIONS Our results indicate that assessing plasma IMP concentration can be applied as a strong biomarker for predicting clinical response to treatment and OS in patients with newly diagnosed MM.
Collapse
Affiliation(s)
- Wioletta Breczko
- Department of Hematology, Medical University of Bialystok, Bialystok, Poland
| | - Dorota Lemancewicz
- Department of Hematology, Medical University of Bialystok, Bialystok, Poland; Department of Human Anatomy, Medical University of Bialystok, Bialystok, Poland
| | - Janusz Dzięcioł
- Department of Human Anatomy, Medical University of Bialystok, Bialystok, Poland
| | - Janusz Kłoczko
- Department of Hematology, Medical University of Bialystok, Bialystok, Poland
| | - Łukasz Bołkun
- Department of Hematology, Medical University of Bialystok, Bialystok, Poland.
| |
Collapse
|