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Silvagni E, Missiroli S, Patergnani S, Boncompagni C, D'Ugo C, Garaffoni C, Ciliento MS, Lanza G, Bonora M, Gafà R, Perrone M, Bortoluzzi A, Giorgi C, Govoni M, Scirè CA, Pinton P. Tofacitinib restores psoriatic arthritis fibroblast-like synoviocytes function via autophagy and mitochondrial quality control modulation. J Autoimmun 2024; 143:103159. [PMID: 38141420 DOI: 10.1016/j.jaut.2023.103159] [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: 10/29/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 12/25/2023]
Abstract
OBJECTIVES To evaluate the in vitro effect of tofacitinib on autophagy activity of psoriatic arthritis (PsA) fibroblast-like synoviocytes (FLS), and to confirm its activity on inflammatory and invasive properties of FLS and synovial cells, deepening the impact on mitochondrial function. METHODS FLS, peripheral blood mononuclear cells (PBMCs), and synovial cells from active PsA patients were cultured with tofacitinib 1 μM or vehicle control for 24 h. Autophagy was measured by Western blot and by fluorescence microscopy. Chemokines/cytokines released into culture supernatants were quantified by ELISA, while invasive properties of FLS by migration assays. Specific mitochondrial probes were adopted to measure intracellular reactive oxygen species (ROS), mitochondrial potential, morphology, turnover and mitophagy. Oxygen consumption rate (OCR), reflecting oxidative phosphorylation, was quantified using the Seahorse technology. Differences were determined by adopting the non-parametric Wilcoxon signed rank test. RESULTS 18 patients with moderately-to-severely active PsA were enrolled. Tofacitinib significantly increased the levels of the autophagy markers LC3-II and ATG7 in PsA FLS compared to vehicle control, suggesting an increase in spontaneous autophagy activity; no effect was highlighted in PBMCs and synovial cells cultures. Tofacitinib reduced migration properties of PsA FLS, and reduced MCP-1 and IL-6 release into FLS and synovial cells cultures supernatants. Furthermore, tofacitinib decreased intracellular ROS production, increased basal OCR, ATP production and maximal respiratory capacity, and enhanced mitophagy and mitochondrial turnover. CONCLUSIONS The JAK inhibitor tofacitinib reduces the pro-invasive and pro-inflammatory properties of PsA FLS. Autophagy induction and mitochondrial quality control modulation by tofacitinib might contribute to FLS function restoration.
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Affiliation(s)
- Ettore Silvagni
- Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria S. Anna, Cona Ferrara, Italy
| | - Sonia Missiroli
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy
| | - Simone Patergnani
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy
| | - Caterina Boncompagni
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy
| | - Clotilde D'Ugo
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy
| | - Carlo Garaffoni
- Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria S. Anna, Cona Ferrara, Italy
| | - Maria Sofia Ciliento
- Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria S. Anna, Cona Ferrara, Italy; Department of Precision Medicine, University della Campania L. Vanvitelli, Naples, Italy
| | - Giovanni Lanza
- Anatomic Pathology, Department of Translational Medicine, University of Ferrara, Cona Ferrara, Italy
| | - Massimo Bonora
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy
| | - Roberta Gafà
- Anatomic Pathology, Department of Translational Medicine, University of Ferrara, Cona Ferrara, Italy
| | - Mariasole Perrone
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy
| | - Alessandra Bortoluzzi
- Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria S. Anna, Cona Ferrara, Italy
| | - Carlotta Giorgi
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy
| | - Marcello Govoni
- Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Azienda Ospedaliero-Universitaria S. Anna, Cona Ferrara, Italy
| | - Carlo Alberto Scirè
- IRCCS San Gerardo dei Tintori Foundation, Monza, Italy; School of Medicine, University of Milano Bicocca, Milan, Italy.
| | - Paolo Pinton
- Department of Medical Sciences, Section of Experimental Medicine, University of Ferrara, Laboratory for Technologies of Advanced Therapies (LTTA), Ferrara, Italy.
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Kuczyńska M, Moskot M, Gabig-Cimińska M. Insights into Autophagic Machinery and Lysosomal Function in Cells Involved in the Psoriatic Immune-Mediated Inflammatory Cascade. Arch Immunol Ther Exp (Warsz) 2024; 72:aite-2024-0005. [PMID: 38409665 DOI: 10.2478/aite-2024-0005] [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: 10/06/2023] [Accepted: 12/08/2023] [Indexed: 02/28/2024]
Abstract
Impaired autophagy, due to the dysfunction of lysosomal organelles, contributes to maladaptive responses by pathways central to the immune system. Deciphering the immune-inflammatory ecosystem is essential, but remains a major challenge in terms of understanding the mechanisms responsible for autoimmune diseases. Accumulating evidence implicates a role that is played by a dysfunctional autophagy-lysosomal pathway (ALP) and an immune niche in psoriasis (Ps), one of the most common chronic skin diseases, characterized by the co-existence of autoimmune and autoinflammatory responses. The dysregulated autophagy associated with the defective lysosomal system is only one aspect of Ps pathogenesis. It probably cannot fully explain the pathomechanism involved in Ps, but it is likely important and should be seriously considered in Ps research. This review provides a recent update on discoveries in the field. Also, it sheds light on how the dysregulation of intracellular pathways, coming from modulated autophagy and endolysosomal trafficking, characteristic of key players of the disease, i.e., skin-resident cells, as well as circulating immune cells, may be responsible for immune impairment and the development of Ps.
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Affiliation(s)
- Martyna Kuczyńska
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
| | - Marta Moskot
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
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Dowling AL, Walbridge S, Ertekin C, Namagiri S, Camacho K, Chowdhury A, Bryant JP, Kohut E, Heiss JD, Brown DA, Kumbar SG, Banasavadi-Siddegowda YK. FKBP38 Regulates Self-Renewal and Survival of GBM Neurospheres. Cells 2023; 12:2562. [PMID: 37947640 PMCID: PMC10647221 DOI: 10.3390/cells12212562] [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: 08/15/2023] [Revised: 10/24/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023] Open
Abstract
Glioblastoma is the most common malignant primary brain tumor. The outcome is dismal, despite the multimodal therapeutic approach that includes surgical resection, followed by radiation and chemotherapy. The quest for novel therapeutic targets to treat glioblastoma is underway. FKBP38, a member of the immunophilin family of proteins, is a multidomain protein that plays an important role in the regulation of cellular functions, including apoptosis and autophagy. In this study, we tested the role of FKBP38 in glioblastoma tumor biology. Expression of FKBP38 was upregulated in the patient-derived primary glioblastoma neurospheres (GBMNS), compared to normal human astrocytes. Attenuation of FKBP38 expression decreased the viability of GBMNSs and increased the caspase 3/7 activity, indicating that FKBP38 is required for the survival of GBMNSs. Further, the depletion of FKBP38 significantly reduced the number of neurospheres that were formed, implying that FKBP38 regulates the self-renewal of GBMNSs. Additionally, the transient knockdown of FKBP38 increased the LC3-II/I ratio, suggesting the induction of autophagy with the depletion of FKBP38. Further investigation showed that the negative regulation of autophagy by FKBP38 in GBMNSs is mediated through the JNK/C-Jun-PTEN-AKT pathway. In vivo, FKBP38 depletion significantly extended the survival of tumor-bearing mice. Overall, our results suggest that targeting FKBP38 imparts an anti-glioblastoma effect by inducing apoptosis and autophagy and thus can be a potential therapeutic target for glioblastoma therapy.
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Affiliation(s)
- Aimee L. Dowling
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - Stuart Walbridge
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - Celine Ertekin
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - Sriya Namagiri
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - Krystal Camacho
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - Ashis Chowdhury
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - Jean-Paul Bryant
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - Eric Kohut
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
| | - John D. Heiss
- Clinical Neurology Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA
| | - Desmond A. Brown
- Neurosurgical Oncology Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA;
| | - Sangamesh G. Kumbar
- Department of Orthopedic Surgery, University of Connecticut Health, Farmington, CT 06030, USA;
| | - Yeshavanth Kumar Banasavadi-Siddegowda
- Molecular & Therapeutics Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA (A.C.); (J.-P.B.); (E.K.)
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Ren M, Ma K, Pang X, Liu Y, Song Z, Zhou R, Tang Z. Anti-rheumatoid arthritis effects of total saponins from Rhizoma Panacis Majoris on adjuvant-induced arthritis in rats and rheumatoid arthritis fibroblast-like synoviocytes. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 119:155021. [PMID: 37603974 DOI: 10.1016/j.phymed.2023.155021] [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: 05/22/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023]
Abstract
BACKGROUND Total saponins from Rhizoma Panacis Majoris (RPMTG) showed significant antitumour activity in our previous studies. Rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) with tumour-like characteristics have received attention as a therapeutic target for RA. However, the potential effect and mechanism of action of RPMTG against RA-FLS remain unclear. OBJECTIVE The study investigated the therapeutic effect of RPMTG on adjuvant-induced arthritis (AIA) in rats, and the regulation effect and underlying mechanism on apoptosis, autophagy of RA-FLS. METHODS The therapeutic effect of RPMTG was determined by the symptoms and signs of AIA rats. The production of inflammatory cytokines was detected by ELISA. Histopathological change of the ankle and synovial tissues were detected by HE staining. Flow cytometry, Hoechst 33342/PI staining, MDC staining, and TEM were used to determine the effects of RPMTG on apoptosis and autophagy. Western blotting was applied to detect the expression levels of proteins. RESULTS In AIA rats, RPMTG treatment ameliorated paw swelling, and arthritis score, restored synovial histopathological changes, inhibited the expression of IL-6 and IL-1β, exhibiting its potent anti-arthritis effect. In vitro, RPMTG depressed the proliferation of RA-FLS, arrested cell cycle in G0/G1 phase, and induced mitochondria-mediated apoptosis. Moreover, RPMTG significantly inhibited the autophagy in vivo and in vitro, proved by decreasing the expression of autophagy-related indicators (LC3II/LC3I, Beclin-1). Mechanistically, the study demonstrated that the activation of p38 MAPK and PI3K/Akt/mTOR pathways was mainly involved in the therapeutic effects of RPMTG. Interestingly, the effect of RPMTG on apoptosis was reversed after Rapamycin treatment, which preliminarily demonstrated that the inhibitory effect of RPMTG on autophagy was beneficial to the effect on inducing apoptosis. The regulation effect of RPMTG concurrently on apoptosis and autophagy revealed its unique advantages in RA treatment. CONCLUSION RPMTG showed potent therapeutic effects on AIA rats and induced apoptosis, inhibited autophagy mainly through activating the p38 MAPK and PI3K/Akt/mTOR pathways in RA-FLS.
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Affiliation(s)
- Mei Ren
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Kang Ma
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Xiayun Pang
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Yanru Liu
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Zhongxing Song
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Rui Zhou
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi and Education Ministry, State Key Laboratory of Research and Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China.
| | - Zhishu Tang
- China Academy of Chinese Medical Sciences, Beijing, PR China
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Spinelli FR, Berti R, Farina G, Ceccarelli F, Conti F, Crescioli C. Exercise-induced modulation of Interferon-signature: a therapeutic route toward management of Systemic Lupus Erythematosus. Autoimmun Rev 2023; 22:103412. [PMID: 37597604 DOI: 10.1016/j.autrev.2023.103412] [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: 08/01/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023]
Abstract
Systemic Lupus Erythematosus (SLE) is a multisystemic autoimmune disorder characterized by flares-ups/remissions with a complex clinical picture related to disease severity and organ/tissue injury, which, if left untreated, may result in permanent damage. Enhanced fatigue and pain perception, worsened quality of life (QoL) and outcome are constant, albeit symptoms may differ. An aberrant SLE immunoprofiling, note as "interferon (IFN)α-signature", is acknowledged to break immunotolerance. Recently, a deregulated "IFNγ-signature" is suggested to silently precede/trigger IFNα profile before clinical manifestations. IFNα- and IFNγ-over-signaling merge in cytokine/chemokine overexpression exacerbating autoimmunity. Remission achievement and QoL improvement are the main goals. The current therapy (i.e., corticosteroids, immunosuppressants) aims to downregulate immune over-response. Exercise could be a safe treatment due to its ever-emerging ability to shape and re-balance immune system without harmful side-effects; in addition, it improves cardiorespiratory capacity and musculoskeletal strength/power, usually impaired in SLE. Nevertheless, exercise is not yet included in SLE care plans. Furthermore, due to the fear to worsening pain/fatigue, SLE subjects experience kinesiophobia and sedentary lifestyle, worsening physical health. Training SLE patients to exercise is mandatory to fight inactive behavior and ameliorate health. This review aims to focus the attention on the role of exercise as a non-pharmacological therapy in SLE, considering its ability to mitigate IFN-signature and rebalance (auto)immune response. To this purpose, the significance of IFNα- and IFNγ-signaling in SLE etiopathogenesis will be addressed first and discussed thereafter as biotarget of exercise. Comments are addressed on the need to make aware all SLE care professional figures to promote exercise for health patients.
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Affiliation(s)
- Francesca Romana Spinelli
- Sapienza Università di Roma, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari-Reumatologia, Roma, Italy
| | - Riccardo Berti
- University of Rome Foro Italico, Department of Movement, Human and Health Sciences, Rome, Italy
| | - Gabriele Farina
- University of Rome Foro Italico, Department of Movement, Human and Health Sciences, Rome, Italy
| | - Fulvia Ceccarelli
- Sapienza Università di Roma, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari-Reumatologia, Roma, Italy
| | - Fabrizio Conti
- Sapienza Università di Roma, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari-Reumatologia, Roma, Italy
| | - Clara Crescioli
- University of Rome Foro Italico, Department of Movement, Human and Health Sciences, Rome, Italy.
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Dong G, Gao H, Chen Y, Yang H. Machine learning and bioinformatics analysis to identify autophagy-related biomarkers in peripheral blood for rheumatoid arthritis. Front Genet 2023; 14:1238407. [PMID: 37779906 PMCID: PMC10533932 DOI: 10.3389/fgene.2023.1238407] [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: 06/11/2023] [Accepted: 08/31/2023] [Indexed: 10/03/2023] Open
Abstract
Background: Although rheumatoid arthritis (RA) is a common autoimmune disease, the precise pathogenesis of the disease remains unclear. Recent research has unraveled the role of autophagy in the development of RA. This research aims to explore autophagy-related diagnostic biomarkers in the peripheral blood of RA patients. Methods: The gene expression profiles of GSE17755 were retrieved from the gene expression ontology (GEO) database. Differentially expressed autophagy-related genes (DE-ARGs) were identified for the subsequent research by inserting autophagy-related genes and differentially expressed genes (DEGs). Three machine learning algorithms, including random forest, support vector machine recursive feature elimination (SVM-RFE), and least absolute shrinkage and selection operator (LASSO), were employed to identify diagnostic biomarkers. A nomogram model was constructed to assess the diagnostic value of the biomarkers. The CIBERSORT algorithm was performed to investigate the correlation of the diagnostic biomarkers with immune cells and immune factors. Finally, the diagnostic efficacy and differential expression trend of diagnostic biomarkers were validated in multiple cohorts containing different tissues and diseases. Results: In this study, 25 DE-ARGs were identified between RA and healthy individuals. In addition to "macroautophagy" and "autophagy-animal," DE-ARGs were also associated with several types of programmed cell death and immune-related pathways according to GO and KEGG analysis. Three diagnostic biomarkers, EEF2, HSP90AB1 and TNFSF10, were identified by the random forest, SVM-RFE, and LASSO. The nomogram model demonstrated excellent diagnostic value in GSE17755 (AUC = 0.995, 95% CI: 0.988-0.999). Furthermore, immune infiltration analysis showed a remarkable association between EEF2, HSP90AB1, and TNFSF10 expression with various immune cells and immune factors. The three diagnostic biomarkers also exhibited good diagnostic efficacy and demonstrated the same trend of differential expression in multiple validation cohorts. Conclusion: This study identified autophagy-related diagnostic biomarkers based on three machine learning algorithms, providing promising targets for the diagnosis and treatment of RA.
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Affiliation(s)
| | | | | | - Huayuan Yang
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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OGAWA KENJIROU, URATA KARIN, MAEDA SAKI, OHNO YUTA, SATOH KEITARO, YAMADA YOSHIYUKI, SUZUKI YOSUKE, KOGA YASUKO, SUGAMOTO KAZUHIRO, KAWAGUCHI MAKIKO, KUNITAKE HISATO, NISHIYAMA KAZUO, GOTO YO, NAKAYAMA TAKAYUKI, YAMASAKI MASAO. Blueberry Leaf Extract Prevents Lacrimal Hyposecretion in Sjögren's Syndrome-like Model of Non-obese Diabetic Mice. In Vivo 2023; 37:149-162. [PMID: 36593026 PMCID: PMC9843763 DOI: 10.21873/invivo.13064] [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: 11/01/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 01/03/2023]
Abstract
BACKGROUND/AIM This study evaluated the effect of blueberry leaf hot water extract (BLEx) on Sjögren's syndrome (SS)-like lacrimal hyposecretion in male non-obese diabetic (NOD) mice. MATERIALS AND METHODS NOD or BALB/c mice were fed 1% BLEx or control (AIN-93G) for 2 weeks from the age of 4 to 6 weeks. Pilocarpine-induced tear volume was measured using a phenol red-impregnated thread. The lacrimal glands were evaluated histologically by H&E staining. The IL-1β and TNF-α levels in the lacrimal gland tissue were measured by ELISA. The mRNA expression levels of secretion-related proteins were measured by real-time PCR. LC3 I/II and arginase 1 expression levels were measured by western blot. RESULTS After feeding with BLEx, pilocarpine-induced tear secretion in NOD mice was increased. In contrast, the mRNA expression levels of the cholinergic muscarinic M3 receptor, aquaporin 5, and ion channels related to lacrimal secretion were not changed by BLEx administration. In addition, the protein expression of arginase 1, which was recently reported to be involved in tear hyposecretion in NOD mice, was also not improved by BLEx administration. Although infiltration in the lacrimal gland of NOD mice was not decreased, the levels of TNF-α and the autophagy-related protein LC3 were significantly suppressed by BLEx treatment. CONCLUSION BLEx treatment may ameliorate lacrimal hyposecretion in NOD mice by delaying the progression of autoimmune disease by suppressing autophagy in lacrimal glands.
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Affiliation(s)
- KENJIROU OGAWA
- Institute for Tenure Track Promotion, University of Miyazaki, Miyazaki, Japan
| | - KARIN URATA
- Graduate School of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - SAKI MAEDA
- Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - YUTA OHNO
- Department of Pharmacology, Asahi University School of Dentistry, Mizuho, Japan
| | - KEITARO SATOH
- Department of Pharmacology, Meikai University School of Dentistry, Sakado, Japan
| | - YOSHIYUKI YAMADA
- Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - YOSUKE SUZUKI
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, Miyazaki, Japan
| | - YASUKO KOGA
- Graduate School of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - KAZUHIRO SUGAMOTO
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, Miyazaki, Japan
| | - MAKIKO KAWAGUCHI
- Department of Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - HISATO KUNITAKE
- Graduate School of Agriculture, University of Miyazaki, Miyazaki, Japan,Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - KAZUO NISHIYAMA
- Graduate School of Agriculture, University of Miyazaki, Miyazaki, Japan,Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - YO GOTO
- Biolabo Co., Ltd., Kobe, Japan
| | | | - MASAO YAMASAKI
- Graduate School of Agriculture, University of Miyazaki, Miyazaki, Japan,Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
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Ming X, Yin M, Liyan W. Antibacterial and Anti-Inflammatory Potential of Chinese Medicinal Herbs: Lonicerae flos, Lonicerae japonicae flos, Scutellaria baicalensis Georgi, and Forsythia suspensa. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221136673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Chinese herbal medicine (CHM) represents a potent, safe, and efficacious reservoir of treatment options against an array of microbial infections and inflammatory diseases. It has a long history of positive clinical outcomes with minimal or no side effects while enhancing and bolstering the host's protection against infections. With its unique ability to prevent, treat, and manage a wide range of diseased conditions, CHM has been successfully practiced in China for thousands of years. In the modern medical era, where harsh therapeutic drugs and antimicrobial resistance (AMR) present a significant challenge, CHM warrants further exploration. The present review highlights and focuses on 4 major CHM-based herbs, that is, ( Lonicerae flos [ LF] , Lonicerae japonicae flos [ LJF] , Scutellaria baicalensis Georgi [ SBG] , and Forsythia suspensa [ FS]) in terms of their antibacterial and anti-inflammatory efficacies. A detailed literature survey was done by the team using a systematic electronic search from PubMed, Science Direct, Google Scholar, Research Gate, books, etc. This was followed by data collecting, pertinent data extraction, in-depth analysis, and composing the final review. Each herb has been discussed in detail describing its mechanism adopted and the bioactive components involved in alleviating bacterial infections and inflammatory damage. Further, proof of efficacy by detailing the major past studies and major findings has been discussed for each of the 4 herbs. This review will give the scientific community the opportunity to update their knowledge on the subject, which is crucial for heralding the process of bringing CHM-based medicines closer to clinical development given the area of alternative medicine's rapid advancements.
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Affiliation(s)
- Xu Ming
- Pharmaceutical Department, The First Hospital of Tsinghua University, Beijing, China
| | - Ma Yin
- Pharmaceutical Department, Wang Jing Hospital of CACMS, Beijing, China
| | - Wan Liyan
- Pharmaceutical Department, The First Hospital of Tsinghua University, Beijing, China
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McCormick JJ, Côté MD, King KE, McManus MK, Goulet N, Dokladny K, Moseley PL, Kenny GP. The autophagic response to exercise in peripheral blood mononuclear cells from young men is intensity-dependent and is altered by exposure to environmental heat. Am J Physiol Regul Integr Comp Physiol 2022; 323:R467-R482. [PMID: 35993558 DOI: 10.1152/ajpregu.00110.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Autophagy is essential to maintaining cellular homeostasis in all eukaryotic cells and to tolerance of acute stressors such as starvation, heat, and recovery following exercise. Limited information exists regarding the exercise intensity-dependent autophagic response in humans, and it is unknown how environmental heat stress may modulate this response. Therefore, we evaluated autophagy and accompanying pathways of cellular stress (the heat shock response [HSR], apoptosis, and acute inflammation) in peripheral blood mononuclear cells (PBMCs) from 10 young men (mean [SD]; 22 [2] years) before, immediately after and up to 6h post-exercise recovery from 30 minutes of low-, moderate-, and high-intensity semi-recumbent cycling (40, 55 and 70% of maximal oxygen consumption (VO2max), respectively)in a temperate environment (25°C) and at 70% of VO2max in a hot environment (40°C). Changes in protein content were analyzed via Western blot. Each increase in exercise intensity was associated with elevations in mean body temperature. LC3-II increased following moderate-intensity exercise, with further increases following high-intensity exercise (p < 0.05). However, an increase in beclin-2 and ULK1, with a decrease in p62 was only observed after high-intensity exercise, which was paralleled by elevated TNF-α and cleaved-caspase-3, with the HSR peaking at 6h after exercise (p < 0.05). When exercise was performed in the heat, greater LC3-II and cleaved-caspase-3 accumulation was observed, however beclin-2 declined in recovery (p < 0.05). Therefore, our findings indicate that autophagy in PBMCs during exercise may be associated with greater heat strain exhibited during increasing exercise intensities, which is modulated by exposure to heat.
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Affiliation(s)
- James J McCormick
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Melissa D Côté
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Kelli E King
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Morgan K McManus
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Nicholas Goulet
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Karol Dokladny
- Department of Internal Medicine, University of New Mexico, Albuquerque, NM, United States
| | - Pope L Moseley
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,College of Health Solutions, Arizona State University, Phoenix, Arizona, United States
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada.,Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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10
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Danilenko OV, Gavrilova NY, Churilov LP. Chronic Fatigue Exhibits Heterogeneous Autoimmunity Characteristics Which Reflect Etiology. PATHOPHYSIOLOGY 2022; 29:187-199. [PMID: 35736644 PMCID: PMC9231045 DOI: 10.3390/pathophysiology29020016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 12/02/2022] Open
Abstract
Chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is considered to be associated with post-viral complications and mental stress, but the role of autoimmunity also remains promising. A comparison of autoimmune profiles in chronic fatigue of different origin may bring insights on the pathogenesis of this disease. Thirty-three patients with CFS/ME were divided into three subgroups. The first group included Herpesviridae carriers (group V), the second group included stress-related causes of chronic fatigue (distress, group D), and the third group included idiopathic CFS/ME (group I). Were evaluated thirty-six neural and visceral autoantigens with the ELISA ELI-test (Biomarker, Russia) and compared to 20 healthy donors, either without any fatigue (group H), or “healthy but tired” (group HTd) with episodes of fatigue related to job burnout not fitting the CFS/ME criteria. β2-glycoprotein-I autoantibodies were increased in CFS/ME patients, but not in healthy participants, that alludes the link between CFS/ME and antiphospholipid syndrome (APS) earlier suspected by Berg et al. (1999). In CFS/ME patients, an increase in levels of autoantibodies towards the non-specific components of tissue debris (double-stranded DNA, collagen) was shown. Both CFS and HTd subgroups had elevated level of autoantibodies against serotonin receptors, glial fibrillary acidic protein and protein S100. Only group V showed an elevation in the autoantibodies towards voltage-gated calcium channels, and only group D had elevated levels of dopamine-, glutamate- and GABA-receptor autoantibodies, as well as NF200-protein autoantibodies. Therefore, increased autoimmune reactions to the multiple neural antigens and to adrenal medullar antigen, but not to other tissue-specific somatic ones were revealed. An increase in autoantibody levels towards some neural and non-tissue-specific antigens strongly correlated with a CFS/ME diagnosis. Autoimmune reactions were described in all subtypes of the clinically significant chronic fatigue. Visceral complaints in CFS/ME patients may be secondary to the neuroendocrine involvement and autoimmune dysautonomia. CFS may be closely interrelated with antiphospholipid syndrome, that requires further study.
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Affiliation(s)
- Olga V. Danilenko
- Department of Pathology, Faculty of Medicine, Saint Petersburg State University, Universitetskaya emb, 7–9, 199034 St. Petersburg, Russia; (O.V.D.); (L.P.C.)
| | - Natalia Y. Gavrilova
- Department of Faculty Therapy, Faculty of Medicine, Saint Petersburg State University, Universitetskaya emb, 7–9, 199034 St. Petersburg, Russia
- Department of Pulmonology, Saint Petersburg Research Institute of Phthisiopulmonology, Ligovskii pr., 2–4, 191036 St. Petersburg, Russia
- Research Institute of Phthisiopulmonology, St. Petersburg State University Hospital, Fontanka River Emb., 154, 190103 St. Petersburg, Russia
- Correspondence:
| | - Leonid P. Churilov
- Department of Pathology, Faculty of Medicine, Saint Petersburg State University, Universitetskaya emb, 7–9, 199034 St. Petersburg, Russia; (O.V.D.); (L.P.C.)
- Department of Experimental Tuberculosis and Innovative Technologies, Saint Petersburg Research Institute of Phthisiopulmonology, Ligovskii pr., 2–4, 191036 St. Petersburg, Russia
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11
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Celia AI, Colafrancesco S, Barbati C, Alessandri C, Conti F. Autophagy in Rheumatic Diseases: Role in the Pathogenesis and Therapeutic Approaches. Cells 2022; 11:cells11081359. [PMID: 35456038 PMCID: PMC9025357 DOI: 10.3390/cells11081359] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 11/23/2022] Open
Abstract
Autophagy is a lysosomal pathway for the degradation of damaged proteins and intracellular components that promotes cell survival under specific conditions. Apoptosis is, in contrast, a critical programmed cell death mechanism, and the relationship between these two processes influences cell fate. Recent evidence suggests that autophagy and apoptosis are involved in the self-tolerance promotion and in the regulatory mechanisms contributing to disease susceptibility and immune regulation in rheumatic diseases. The aim of this review is to discuss how the balance between autophagy and apoptosis may be dysregulated in multiple rheumatic diseases and to dissect the role of autophagy in the pathogenesis of rheumatoid arthritis, systemic lupus erythematosus, and Sjögren’s syndrome. Furthermore, to discuss the potential capacity of currently used disease-modifying antirheumatic drugs (DMARDs) to target and modulate autophagic processes.
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12
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Vomero M, Caliste M, Barbati C, Speziali M, Celia AI, Ucci F, Ciancarella C, Putro E, Colasanti T, Buoncuore G, Corsiero E, Bombardieri M, Spinelli FR, Ceccarelli F, Conti F, Alessandri C. Tofacitinib Decreases Autophagy of Fibroblast-Like Synoviocytes From Rheumatoid Arthritis Patients. Front Pharmacol 2022; 13:852802. [PMID: 35308233 PMCID: PMC8928732 DOI: 10.3389/fphar.2022.852802] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/14/2022] [Indexed: 01/18/2023] Open
Abstract
The pathway of Janus tyrosine kinases (JAKs) has a central role in the pathogenesis of Rheumatoid Arthritis (RA) by regulating multiple immune functions and cytokine production. The JAK inhibitor tofacitinib is effective in RA patients not responding to methotrexate or TNF-inhibitors. Since hyperactive autophagy has been associated with impaired apoptosis of RA fibroblast-like synoviocytes (FLS), we aimed to investigate the role of tofacitinib in modulating autophagy and apoptosis in these cells. FLS isolated from RA biopsies were cultured with tofacitinib in presence of autophagy inducer rapamycin and in serum deprivation condition. Levels of autophagy, apoptosis, and citrullinated proteins were analyzed by western blot, flow cytometry, immunocytofluorescence, and Real-Time PCR. Rapamycin induced an increase in RA-FLS autophagy while the levels of autophagy marker LC3-II were reduced after in vitro treatment with tofacitinib. The analysis of autophagic flux by specific fluorescence dye confirmed the reduction of autophagy in RA FLS. The treatment with tofacitinib did not influence apoptosis of RA FLS. Modulation of the autophagic process by tofacitinib did not significantly change citrullination. The results of this study demonstrate that tofacitinib is able to modulate autophagy of FLS contributing to its effectiveness in RA patients.
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Affiliation(s)
- M. Vomero
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
- Rheumatology, Immunology and Clinical Medicine Unit, Università Campus Bio-Medico di Roma, Rome, Italy
| | - M. Caliste
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - C. Barbati
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
- *Correspondence: C. Barbati,
| | - M. Speziali
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - A. I. Celia
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - F. Ucci
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - C. Ciancarella
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - E. Putro
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - T. Colasanti
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - G. Buoncuore
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - E. Corsiero
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - M. Bombardieri
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - F. R. Spinelli
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - F. Ceccarelli
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - F. Conti
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - C. Alessandri
- Arthritis Center, Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
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13
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Roodenrijs NMT, Welsing PMJ, van Roon J, Schoneveld JLM, van der Goes MC, Nagy G, Townsend MJ, van Laar JM. Mechanisms underlying DMARD inefficacy in difficult-to-treat rheumatoid arthritis: a narrative review with systematic literature search. Rheumatology (Oxford) 2022; 61:3552-3566. [PMID: 35238332 PMCID: PMC9434144 DOI: 10.1093/rheumatology/keac114] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/07/2022] [Accepted: 02/14/2022] [Indexed: 12/03/2022] Open
Abstract
Management of RA patients has significantly improved over the past decades. However, a substantial proportion of patients is difficult-to-treat (D2T), remaining symptomatic after failing biological and/or targeted synthetic DMARDs. Multiple factors can contribute to D2T RA, including treatment non-adherence, comorbidities and co-existing mimicking diseases (e.g. fibromyalgia). Additionally, currently available biological and/or targeted synthetic DMARDs may be truly ineffective (‘true’ refractory RA) and/or lead to unacceptable side effects. In this narrative review based on a systematic literature search, an overview of underlying (immune) mechanisms is presented. Potential scenarios are discussed including the influence of different levels of gene expression and clinical characteristics. Although the exact underlying mechanisms remain largely unknown, the heterogeneity between individual patients supports the assumption that D2T RA is a syndrome involving different pathogenic mechanisms.
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Affiliation(s)
- Nadia M T Roodenrijs
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Paco M J Welsing
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Joel van Roon
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Jan L M Schoneveld
- Department of Rheumatology, Bravis Hospital, Roosendaal, the Netherlands
| | - Marlies C van der Goes
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht University, the Netherlands.,Department of Rheumatology, Meander Medical Center, Amersfoort, the Netherlands
| | - György Nagy
- Department of Rheumatology & Clinical Immunology, Semmelweis University, Budapest, Hungary.,Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Michael J Townsend
- Biomarker Discovery OMNI, Genentech Research & Early Development, South San Francisco, USA
| | - Jacob M van Laar
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht University, the Netherlands
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14
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Cai Y, Xu K, Aihaiti Y, Li Z, Yuan Q, Xu J, Zheng H, Yang M, Wang B, Yang Y, Yang Y, Xu P. Derlin-1, as a Potential Early Predictive Biomarker for Nonresponse to Infliximab Treatment in Rheumatoid Arthritis, Is Related to Autophagy. Front Immunol 2022; 12:795912. [PMID: 35046954 PMCID: PMC8762214 DOI: 10.3389/fimmu.2021.795912] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/13/2021] [Indexed: 01/18/2023] Open
Abstract
Background The goal of this study was to identify potential predictive biomarkers for the therapeutic effect of infliximab (IFX) in Rheumatoid arthritis (RA) and explore the potential molecular mechanism of nonresponse to IFX treatment to achieve individualized treatment of RA. Methods Differential gene expression between IFX responders and nonresponders in the GSE58795 and GSE78068 datasets was identified. Coexpression analysis was used to identify the modules associated with nonresponse to IFX therapy for RA, and enrichment analysis was conducted on module genes. Least absolute shrink and selection operator (LASSO) regression was used to develop a gene signature for predicting the therapeutic effect of IFX in RA, and the area under the receiver operating characteristic curve (AUC) was used to evaluate the predictive value of the signature. Correlation analysis and single-sample gene set enrichment analysis (ssGSEA) were used to explore the potential role of the hub genes. Experimental validation was conducted in synovial tissue and RA fibroblast-like synoviocytes (RA-FLSs). Results A total of 46 common genes were obtained among the two datasets. The yellow-green module was identified as the key module associated with nonresponse to IFX therapy for RA. We identified a 25-gene signature in GSE78068, and the AUC for the signature was 0.831 in the internal validation set and 0.924 in the GSE58795 dataset(external validation set). Derlin-1 (DERL1) was identified as the hub gene and demonstrated to be involved in the immune response and autophagy regulation. DERL1 expression was increased in RA synovial tissue compared with OA synovial tissue, and DERL1-siRNA partially inhibited autophagosome formation in RA-FLSs. Conclusion The 25-gene signature may have potential predictive value for the therapeutic effect of IFX in RA at the beginning of IFX treatment, and autophagy may be involved in nonresponse to IFX treatment. In particular, DERL1 may be associated with the regulation of autophagy.
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Affiliation(s)
- Yongsong Cai
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Ke Xu
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yirixiati Aihaiti
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Zhijin Li
- Department of Neurosurgery, First Affiliated Hospital of the University of Science and Technology of China, Hefei, China
| | - Qiling Yuan
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jing Xu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Haishi Zheng
- Department of Orthopaedics of the First Affiliated Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Mingyi Yang
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Bo Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yanni Yang
- Department of Clinical Medicine of Traditional Chinese and Western Medicine, Shaanxi University of Traditional Chinese Medicine, Xianyang, China
| | - Yin Yang
- Department of Orthopaedics, Xi'an Central Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Peng Xu
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, China
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15
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Chen X, Wang Y, Cai J, Wang S, Cheng Z, Zhang Z, Zhang C. Anti-inflammatory effect of baicalin in rats with adjuvant arthritis and its autophagy- related mechanism. Technol Health Care 2022; 30:191-200. [PMID: 35124596 PMCID: PMC9028621 DOI: 10.3233/thc-228018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND: It has been found that baicalin have anti-inflammatory effects since it reduces the elevated levels of pro-inflammatory cytokines. Meanwhile, it has also been shown that baicalin brings positive effects against rheumatoid arthritis (RA). However, little is observed on its beneficial effects on adjuvant arthritis. OBJECTIVE: To consider the anti-inflammatory influence of baicalin on adjuvant arthritis rats and its related autophagy mechanism. METHODS: In this research, there are six groups of rats, each has 10 rats in it. These groups are normal group (normal saline), model group (normal saline), dexamethasone group (0.125 mg/kg dexamethasone), low-dose baicalin group (50 mg/kg baicalin), medium-dose baicalin group (100 mg/kg baicalin) and high-dose baicalin group (200 mg/kg baicalin). The degrees of adjuvant-induced swelling in rats’ feet were measured every 4 days and the arthritis scores were calculated every 7 days. The inflamed joint tissues were taken after rats were sacrificed. The rat’ joints showed pathological changes, which were observed by HE staining. The relative expression levels of inflammatory factors IL-6, IL-1, IL-17, TNF-α, COX2, and COX1 in the rats’ snovial tissues were detected by RT-PCR. As for the expression levels of autophagy markers Beclin1, Atg5, Atg7, Atg12, microtubule-associated protein-light chain3-II (LC3-II), Bcl-2, and Bax in the synovial tissue, they were discoverd by Western blot. RESULTS: Baicalin could significantly inhibit the inflammatory response of adjuvant arthritis rats. CONCLUSIONS: RT-PCR studies showed that the different doses of baicalin could inhibit the expression of TNF-a, IL-6, IL-1, IL-17, COX2 and COX1 in the synovial tissue (P< 0.05 or P< 0.01). Western blot studies showed that the different doses of baicalin could reduce the expression of Atg5, Atg7, Atg12, LC3-II, Beclin1 and Bcl-2 proteins, and increase the expression of Bax proteins in the synovial tissue.
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Affiliation(s)
- Xi Chen
- College of Basic Medicine, Beihua University, Jilin, China
| | - Yingying Wang
- College of Basic Medicine, Beihua University, Jilin, China
| | - Jiye Cai
- Mingzheng Forensic Identificaiton Centre of Jilin, Jilin, China
| | - Shuang Wang
- College of Basic Medicine, Beihua University, Jilin, China
| | - Zihao Cheng
- College of Pharmacy, Beihua University, Jilin, China
| | - Zhengxu Zhang
- College of Pharmacy, Beihua University, Jilin, China
| | - Chengyi Zhang
- College of Pharmacy, Beihua University, Jilin, China
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16
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Zhao J, Jiang P, Guo S, Schrodi SJ, He D. Apoptosis, Autophagy, NETosis, Necroptosis, and Pyroptosis Mediated Programmed Cell Death as Targets for Innovative Therapy in Rheumatoid Arthritis. Front Immunol 2022; 12:809806. [PMID: 35003139 PMCID: PMC8739882 DOI: 10.3389/fimmu.2021.809806] [Citation(s) in RCA: 78] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/13/2021] [Indexed: 01/13/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory joint disease that can lead to clinical manifestations of systemic diseases. Its leading features include chronic synovial inflammation and degeneration of the bones and joints. In the past decades, multiple susceptibilities for rheumatoid arthritis have been identified along with the development of a remarkable variety of drugs for its treatment; which include analgesics, glucocorticoids, nonsteroidal anti-inflammatory medications (NSAIDs), disease-modifying anti-rheumatic drugs (DMARDs), and biologic response modifiers (bDMARDs). Despite the existence of many clinical treatment options, the prognosis of some patients remains poor due to complex mechanism of the disease. Programmed cell death (PCD) has been extensively studied and ascertained to be one of the essential pathological mechanisms of RA. Its dysregulation in various associated cell types contributes to the development of RA. In this review, we summarize the role of apoptosis, cell death-associated neutrophil extracellular trap formation, necroptosis, pyroptosis, and autophagy in the pathophysiology of RA to provide a theoretical reference and insightful direction to the discovery and development of novel therapeutic targets for RA.
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Affiliation(s)
- Jianan Zhao
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ping Jiang
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shicheng Guo
- Department of Medical Genetics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States
| | - Steven J Schrodi
- Department of Medical Genetics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States
| | - Dongyi He
- Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Arthritis Institute of Integrated Traditional and Western Medicine, Shanghai Chinese Medicine Research Institute, Shanghai, China
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17
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Overexpression of Neuroglobin Promotes Energy Metabolism and Autophagy Induction in Human Neuroblastoma SH-SY5Y Cells. Cells 2021; 10:cells10123394. [PMID: 34943907 PMCID: PMC8699457 DOI: 10.3390/cells10123394] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 01/18/2023] Open
Abstract
Neuroglobin (NGB) is an O2-binding globin mainly expressed in the central and peripheral nervous systems and cerebrospinal fluid. Previously, it was demonstrated that NGB overexpression protects cells from hypoxia-induced death. To investigate processes promoted by NGB overexpression, we used a cellular model of neuroblastoma stably overexpressing an NGB-FLAG construct. We used a proteomic approach to identify the specific profile following NGB overexpression. To evaluate the role of NGB overexpression in increasing energetic metabolism, we measured oxygen consumption rate (OCR) and the extracellular acidification rate through Seahorse XF technology. The effect on autophagy induction was evaluated by analyzing SQSTM1/p62 and LC3-II expression. Proteomic analysis revealed several differentially regulated proteins, involved in oxidative phosphorylation and integral mitochondrial proteins linked to energy metabolism. The analysis of mitochondrial metabolism demonstrated that NGB overexpression increases mitochondrial ATP production. Indeed, NGB overexpression enhances bioenergetic metabolism, increasing OCR and oxygen consumption. Analysis of autophagy induction revealed an increase of LC3-II together with a significant decrease of SQSTM1/p62, and NGB-LC3-II association during autophagosome formation. These results highlight the active participation of NGB in several cellular processes that can be upregulated in response to NGB overexpression, playing a role in the adaptive response to stress in neuroblastoma cells.
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18
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Hashimoto T, Yoshida K, Hashiramoto A, Matsui K. Cell-Free DNA in Rheumatoid Arthritis. Int J Mol Sci 2021; 22:8941. [PMID: 34445645 PMCID: PMC8396202 DOI: 10.3390/ijms22168941] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/14/2021] [Accepted: 08/16/2021] [Indexed: 02/07/2023] Open
Abstract
Endogenous DNA derived from the nuclei or mitochondria is released into the bloodstream following cell damage or death. Extracellular DNA, called cell-free DNA (cfDNA), is associated with various pathological conditions. Recently, multiple aspects of cfDNA have been assessed, including cfDNA levels, integrity, methylation, and mutations. Rheumatoid arthritis (RA) is the most common form of autoimmune arthritis, and treatment of RA has highly varied outcomes. cfDNA in patients with RA is elevated in peripheral blood and synovial fluid and is associated with disease activity. Profiling of cfDNA in patients with RA may then be utilized in various aspects of clinical practice, such as the prediction of prognosis and treatment responses; monitoring disease state; and as a diagnostic marker. In this review, we discuss cfDNA in patients with RA, particularly the sources of cfDNA and the correlation of cfDNA with RA pathogenesis. We also highlight the potential of analyzing cfDNA profiles to guide individualized treatment approaches for RA.
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Affiliation(s)
- Teppei Hashimoto
- Division of Diabetes, Endocrinology and Clinical Immunology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 6638501, Japan;
| | - Kohsuke Yoshida
- Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe 6540142, Japan; (K.Y.); (A.H.)
| | - Akira Hashiramoto
- Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe 6540142, Japan; (K.Y.); (A.H.)
| | - Kiyoshi Matsui
- Division of Diabetes, Endocrinology and Clinical Immunology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 6638501, Japan;
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19
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Luzio A, Parra S, Costa B, Santos D, Álvaro AR, Monteiro SM. Copper impair autophagy on zebrafish (Danio rerio) gill epithelium. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 86:103674. [PMID: 34029728 DOI: 10.1016/j.etap.2021.103674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/12/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
Copper (Cu) is an essential element for organism's metabolism, being controversially listed as a priority pollutant. Importantly, the toxicity of Cu has been linked to several cell death pathways. Thus, this study aimed to assess if macroautophagic pathways are triggered by Cu in zebrafish gill, the main target of waterborne pollutants. The electron microscopy findings indicated that Cu induced profound impacts on zebrafish gill structure and functions, being this tissue a biomarker sensitive enough to indicate early toxic effects. The findings also support a clear impairment of autophagy, througth the absence of phagossomes and the significant down-regulation mRNA transcript levels of microtubule-associated protein light chain 3 (LC3). The reduction of LC3 levels was often associated to an increase of apoptotic activation, indicating that the inhibition of macroautophagy triggers apoptosis in zebrafish gills. This study highlighted that the autophagic down-regulation might be affected through the activation of other cell death signaling pathway.
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Affiliation(s)
- A Luzio
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB and Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, Portugal; Department of Biology and Environment, Life Sciences and Environment School, University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801, Vila Real, Portugal.
| | - S Parra
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB and Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, Portugal; Department of Biology and Environment, Life Sciences and Environment School, University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801, Vila Real, Portugal
| | - B Costa
- Department of Biology and Environment, Life Sciences and Environment School, University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801, Vila Real, Portugal
| | - D Santos
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB and Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, Portugal; Department of Biology and Environment, Life Sciences and Environment School, University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801, Vila Real, Portugal
| | - A R Álvaro
- Center for Neuroscience and Cell Biology, University of Coimbra (CNBC-UC), 3004-504, Coimbra, Portugal
| | - S M Monteiro
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, CITAB and Inov4Agro -Institute for Innovation, Capacity Building and Sustainability of Agri-food Production, Portugal; Department of Biology and Environment, Life Sciences and Environment School, University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801, Vila Real, Portugal.
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20
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Nikopensius T, Niibo P, Haller T, Jagomägi T, Voog-Oras Ü, Tõnisson N, Metspalu A, Saag M, Pruunsild C. Association analysis of juvenile idiopathic arthritis genetic susceptibility factors in Estonian patients. Clin Rheumatol 2021; 40:4157-4165. [PMID: 34101054 PMCID: PMC8463396 DOI: 10.1007/s10067-021-05756-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/16/2022]
Abstract
Background Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatic condition of childhood. Genetic association studies have revealed several JIA susceptibility loci with the strongest effect size observed in the human leukocyte antigen (HLA) region. Genome-wide association studies have augmented the number of JIA-associated loci, particularly for non-HLA genes. The aim of this study was to identify new associations at non-HLA loci predisposing to the risk of JIA development in Estonian patients. Methods We performed genome-wide association analyses in an entire JIA case–control sample (All-JIA) and in a case–control sample for oligoarticular JIA, the most prevalent JIA subtype. The entire cohort was genotyped using the Illumina HumanOmniExpress BeadChip arrays. After imputation, 16,583,468 variants were analyzed in 263 cases and 6956 controls. Results We demonstrated nominal evidence of association for 12 novel non-HLA loci not previously implicated in JIA predisposition. We replicated known JIA associations in CLEC16A and VCTN1 regions in the oligoarticular JIA sample. The strongest associations in the All-JIA analysis were identified at PRKG1 (P = 2,54 × 10−6), LTBP1 (P = 9,45 × 10−6), and ELMO1 (P = 1,05 × 10−5). In the oligoarticular JIA analysis, the strongest associations were identified at NFIA (P = 5,05 × 10−6), LTBP1 (P = 9,95 × 10−6), MX1 (P = 1,65 × 10−5), and CD200R1 (P = 2,59 × 10−5). Conclusion This study increases the number of known JIA risk loci and provides additional evidence for the existence of overlapping genetic risk loci between JIA and other autoimmune diseases, particularly rheumatoid arthritis. The reported loci are involved in molecular pathways of immunological relevance and likely represent genomic regions that confer susceptibility to JIA in Estonian patients.
Key Points • Juvenile idiopathic arthritis (JIA) is the most common childhood rheumatic disease with heterogeneous presentation and genetic predisposition. • Present genome-wide association study for Estonian JIA patients is first of its kind in Northern and Northeastern Europe. • The results of the present study increase the knowledge about JIA risk loci replicating some previously described associations, so adding weight to their relevance and describing novel loci. • The study provides additional evidence for the existence of overlapping genetic risk loci between JIA and other autoimmune diseases, particularly rheumatoid arthritis. |
Supplementary Information The online version contains supplementary material available at 10.1007/s10067-021-05756-x.
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Affiliation(s)
- Tiit Nikopensius
- Estonian Genome Center, Institute of Genomics, University of Tartu, Riia 23B, 51010, Tartu, Estonia.
| | - Priit Niibo
- Institute of Dentistry, University of Tartu, Tartu, Estonia
| | - Toomas Haller
- Estonian Genome Center, Institute of Genomics, University of Tartu, Riia 23B, 51010, Tartu, Estonia
| | - Triin Jagomägi
- Institute of Dentistry, University of Tartu, Tartu, Estonia
| | - Ülle Voog-Oras
- Institute of Dentistry, University of Tartu, Tartu, Estonia.,Stomatology Clinic, Tartu University Hospital, Tartu, Estonia
| | - Neeme Tõnisson
- Estonian Genome Center, Institute of Genomics, University of Tartu, Riia 23B, 51010, Tartu, Estonia.,Department of Clinical Genetics, United Laboratories, Tartu University Hospital, Tartu, Estonia
| | - Andres Metspalu
- Estonian Genome Center, Institute of Genomics, University of Tartu, Riia 23B, 51010, Tartu, Estonia
| | - Mare Saag
- Institute of Dentistry, University of Tartu, Tartu, Estonia
| | - Chris Pruunsild
- Children's Clinic, Tartu University Hospital, Tartu, Estonia.,Children's Clinic, Institute of Clinical Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
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21
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Role of Hypoxia-Mediated Autophagy in Tumor Cell Death and Survival. Cancers (Basel) 2021; 13:cancers13030533. [PMID: 33573362 PMCID: PMC7866864 DOI: 10.3390/cancers13030533] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 12/14/2022] Open
Abstract
Programmed cell death or type I apoptosis has been extensively studied and its contribution to the pathogenesis of disease is well established. However, autophagy functions together with apoptosis to determine the overall fate of the cell. The cross talk between this active self-destruction process and apoptosis is quite complex and contradictory as well, but it is unquestionably decisive for cell survival or cell death. Autophagy can promote tumor suppression but also tumor growth by inducing cancer-cell development and proliferation. In this review, we will discuss how autophagy reprograms tumor cells in the context of tumor hypoxic stress. We will illustrate how autophagy acts as both a suppressor and a driver of tumorigenesis through tuning survival in a context dependent manner. We also shed light on the relationship between autophagy and immune response in this complex regulation. A better understanding of the autophagy mechanisms and pathways will undoubtedly ameliorate the design of therapeutics aimed at targeting autophagy for future cancer immunotherapies.
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22
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McCormick JJ, Dokladny K, Moseley PL, Kenny GP. Autophagy and heat: a potential role for heat therapy to improve autophagic function in health and disease. J Appl Physiol (1985) 2021; 130:1-9. [DOI: 10.1152/japplphysiol.00542.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Autophagy is a crucial cell survival mechanism that involves the degradation and recycling of old or damaged organelles and proteins to maintain cellular homeostasis. Impairments in autophagy are central to the pathogenesis of many conditions including metabolic and neurodegenerative disorders, cardiovascular and pulmonary diseases, diabetes, and aging. Although various pharmacological agents may be able to stimulate autophagic function, to our knowledge, few interventions exist that have been deemed safe and effective in humans. An emerging body of evidence suggests that targeting the autophagic pathway via passive heating (heat therapy) may stimulate autophagic function. Therefore, the primary focus of the present review is to analyze the mechanisms in which passive heating induces autophagy as defined by in vitro and in vivo (animal and human) models. Our secondary focus is to examine the implications of utilizing passive heating to restore dysfunctional autophagy in chronic disease and aging. Finally, we discuss potential therapeutic strategies to implement passive heating to stimulate autophagic function in humans.
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Affiliation(s)
- James J. McCormick
- Human and Environmental Physiology Research Unit, University of Ottawa, Ottawa, Ontario, Canada
| | - Karol Dokladny
- Department of Internal Medicine, The University of New Mexico, Albuquerque, New Mexico
| | - Pope L. Moseley
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Glen P. Kenny
- Human and Environmental Physiology Research Unit, University of Ottawa, Ottawa, Ontario, Canada
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23
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Vomero M, Barbati C, Colasanti T, Celia AI, Speziali M, Ucci FM, Ciancarella C, Conti F, Alessandri C. Autophagy Modulation in Lymphocytes From COVID-19 Patients: New Therapeutic Target in SARS-COV-2 Infection. Front Pharmacol 2020; 11:569849. [PMID: 33424586 PMCID: PMC7794008 DOI: 10.3389/fphar.2020.569849] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/08/2020] [Indexed: 12/21/2022] Open
Abstract
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is the novel coronavirus, causing coronavirus disease 2019 (COVID-19). During virus infection, several pro-inflammatory cytokines are produced, leading to the "cytokine storm." Among these, interleukin (IL)-6, tumor necrosis factor-α (TNF-α), and IL-1β seem to have a central role in the progression and exacerbation of the disease, leading to the recruitment of immune cells to infection sites. Autophagy is an evolutionarily conserved lysosomal degradation pathway involved in different aspects of lymphocytes functionality. The involvement of IL-6, TNF-α, and IL-1β in autophagy modulation has recently been demonstrated. Moreover, preliminary studies showed that SARS-CoV-2 could infect lymphocytes, playing a role in the modulation of autophagy. Several anti-rheumatic drugs, now proposed for the treatment of COVID-19, could modulate autophagy in lymphocytes, highlighting the therapeutic potential of targeting autophagy in SARS-CoV-2 infection.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Cristiano Alessandri
- Rheumatology Unit, Department of Clinical, Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
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24
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McCormick JJ, King KE, Côté MD, Meade RD, Akerman AP, Kenny GP. Impaired autophagy following ex vivo heating at physiologically relevant temperatures in peripheral blood mononuclear cells from elderly adults. J Therm Biol 2020; 95:102790. [PMID: 33454031 DOI: 10.1016/j.jtherbio.2020.102790] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 10/25/2022]
Abstract
With the increasing threat of climate change and the accompanying rise in the frequency and severity of extreme heat events, there are growing health concerns for heat-vulnerable elderly adults. Elderly adults are at increased risk of developing heat-related injuries, in part due to age-related declines in thermoregulatory and cellular function. Regarding the latter, the process of autophagy is activated as a cellular protective mechanism to counter heat-induced stress, but the extent that heat stress activates autophagy in elderly adults is not known. Further, the interplay between autophagy, the heat shock response (HSR), the acute inflammatory response, and apoptosis remains poorly understood in elderly adults. Therefore, the purpose of this study was to examine changes in autophagy, the HSR, inflammation, and apoptosis following increasing levels of ex vivo heat stress representative of physiologically relevant increases in body core temperatures (37-41 °C). Whole blood from 20 elderly adults (72 ± 4 years; 14 men, 6 women) was heated (via water immersion) to temperatures representative of normal resting conditions (normothermia; 37 °C), in addition to moderate and severe heat stress conditions (39, and 41 °C, respectively) for 90 min. Peripheral blood mononuclear cells (PBMC) were isolated and protein markers of autophagy, the HSR, acute inflammation, and apoptosis were examined. No significant increases in markers of autophagy or the HSR were observed following any temperature condition. However, an increase in acute inflammation was observed above baseline following moderate heat stress (39 °C), with further increases in inflammation and apoptosis observed during severe heat stress (41 °C). Our findings indicate that PBMCs from elderly adults do not exhibit increases in autophagy or the HSR following severe heat stress, potentially contributing to the elevated risk of cellular dysfunction seen in elderly adults during heat stress.
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Affiliation(s)
- James J McCormick
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Kelli E King
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Melissa D Côté
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Robert D Meade
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Ashley P Akerman
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada; Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
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25
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Colafrancesco S, Vomero M, Iannizzotto V, Minniti A, Barbati C, Arienzo F, Mastromanno L, Colasanti T, Izzo R, Nayar S, Pipi E, Cerbelli B, Giordano C, Ciccia F, Conti F, Valesini G, Barone F, Priori R, Alessandri C. Autophagy occurs in lymphocytes infiltrating Sjögren's syndrome minor salivary glands and correlates with histological severity of salivary gland lesions. Arthritis Res Ther 2020; 22:238. [PMID: 33050949 PMCID: PMC7557086 DOI: 10.1186/s13075-020-02317-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/11/2020] [Indexed: 12/09/2022] Open
Abstract
Backgrounds The organization of minor salivary glands (MSG) infiltrates, in patients with Sjögren’s syndrome (SS), associates with disease severity and progression. Aberrant regulation of lymphocyte autophagy is involved in autoimmunity, and in previous work, we provided the first evidence of upregulated autophagy in CD4+ T cells infiltrating SS MSG. The aim of this study was to further explore autophagy in SS infiltrating and circulating lymphocytes and to investigate its role in disease histopathological progression. Methods After collection of 20 SS MSG, the presence of lymphocyte aggregates (foci) and the formation of germinal center (GC)-like structures were observed by H&E and confirmed by immunohistochemistry. The expression of autophagy-related genes, Atg5 and MAP1LC3A, was detected by RT-PCR on microdissected salivary gland tissue and control tonsils. In MSG and tonsils, autophagic lymphocytes were identified by the detection of the autophagosome protein LC3B visualized as LC3 puncta staining by immunofluorescence. Peripheral blood autophagy was assessed by flow cytometry in SS and healthy controls (HC). Results Real-time PCR demonstrated higher expression in the autophagy genes Atg5 and MAP1LC3A in MSG GCs as compared to both small foci (p = 0.0075, p = 0.0002) and GCs from tonsils (p = 0.0001, p = 0.0037). In MSG, LC3 puncta staining was detectable on both CD3+ and CD20+ lymphocytes; in tonsils, LC3 puncta was almost undetectable on all lymphocytes. Compared to HC (n = 20), flow cytometry did not reveal any increase of autophagy in SS circulating lymphocytes (n = 30). Conclusions In SS MSG, lymphocytes’ autophagy is a feature of infiltrating T and B cells and is associated with histological severity. Interestingly, in MSG aberrant regulation of autophagy is detectable in GC-like structures possibly indicating its involvement in the development and persistence of the autoimmune process within the lesions.
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Affiliation(s)
- Serena Colafrancesco
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Marta Vomero
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Valentina Iannizzotto
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Antonina Minniti
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Cristiana Barbati
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Francesca Arienzo
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Linda Mastromanno
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Tania Colasanti
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Raffaella Izzo
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Saba Nayar
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Elena Pipi
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Bruna Cerbelli
- Dipartimento di Radiologia, Oncologia e Scienze Patologiche, Sapienza University of Rome, Rome, Italy
| | - Carla Giordano
- Dipartimento di Radiologia, Oncologia e Scienze Patologiche, Sapienza University of Rome, Rome, Italy
| | - Francesco Ciccia
- Dipartimento di Medicina di Precisione, Rheumatology Unit, University of Campania "L. Vanvitelli", Naples, Italy
| | - Fabrizio Conti
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Guido Valesini
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Francesca Barone
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, UK and Sandwell and West Birmingham Trust, Birmingham, UK
| | - Roberta Priori
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy
| | - Cristiano Alessandri
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza University of Rome, Rome, Italy.
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26
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Alzamil NM, Alradini FA, Al-Ani B, Younes S, Fahad Saja M, Kamar SS, Dawood AF. Inhibition of GSK3β protects against collagen type II-induced arthritis associated with a decrease in synovial leukocyte infiltration and inhibition of endoplasmic reticulum stress and autophagy biomarkers. Clin Exp Pharmacol Physiol 2020; 47:1393-1401. [PMID: 32181909 DOI: 10.1111/1440-1681.13305] [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: 11/13/2019] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 01/04/2023]
Abstract
We sought to determine whether TDZD-8, the inhibitor of the glycogen synthase kinase-3β (GSK3β), can protect the synovial membrane of the knee joint against injuries induced by collagen type II immunization (CIA) possibly via the downregulation of synovial leukocyte infiltration, endoplasmic reticulum stress (ERS), and autophagy. The model group of rats (CIA) were immunized over a period of 3 weeks with collagen type II, whereas the treated group of rats (CIA + TDZD-8) were treated with TDZD-8 (1 mg/kg) for 21 days after the completion of the immunization regimen. All rats were then killed at week 6. Harvested synovial tissues were prepared for immunohistochemistry staining, and synovial homogenates were assayed for biomarkers of ERS, autophagy, apoptosis, and cell survival and proliferation. In addition, blood samples were assayed for biomarkers of arthritis. Synovial tissue images showed that CIA enhanced leukocyte recruitment as demonstrated by an increased CD45+ (leukocyte common antigen) immunostaining, which was markedly decreased by TDZD-8. TDZD-8 also significantly (P < .05) inhibited collagen-induced autophagy biomarkers Beclin-1 and LC3II, the ERS biomarkers GRP-78, IRE1-α, XBPIs, and eIF2a, and the survival protein Bcl-2. Whereas, the collagen-induced proliferative biomarkers Akt and mTOR were not inhibited by TDZD-8, and CIA inhibited the apoptotic proteins CHOP and cleaved caspase-3, which were augmented by TDZD-8. We further demonstrated a significant (P < .05) correlation between autoantibodies generated during the course of arthritis and biomarkers of ERS and autophagy. We conclude that TDZD-8 inhibits CIA and decreases synovial leukocyte infiltration, ERS, and autophagy, which is independent of Akt/mTOR signalling.
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Affiliation(s)
- Norah M Alzamil
- Department of Clinical Science, Family Medicine, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Faten A Alradini
- Department of Clinical Science, Family Medicine, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Bahjat Al-Ani
- Department of Physiology, King Khalid University, Abha, Saudi Arabia
| | - Sheren Younes
- Department of Pathology, Faculty of Medicine, Menoufia University, Shebin El-Kom, Egypt
| | - Maha Fahad Saja
- Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Samaa S Kamar
- Department of Medical Histology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Amal F Dawood
- Department of Basic Medical Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt
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27
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Wen J, Liu J, Jiang H, Wan L, Xin L, Sun Y, Zhang P, Sun Y, Zhang Y, Du X, Wang X, Wang J. lncRNA expression profiles related to apoptosis and autophagy in peripheral blood mononuclear cells of patients with rheumatoid arthritis. FEBS Open Bio 2020; 10:1642-1654. [PMID: 32569434 PMCID: PMC7396444 DOI: 10.1002/2211-5463.12913] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/26/2020] [Accepted: 06/17/2020] [Indexed: 12/16/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are >200-bp molecules that do not generally code for proteins. Human lncRNAs have well-characterized roles in gene expression regulation, particularly with regard to protein-coding genes, and their dysregulation has been linked to disease. Here, we set out to investigate changes in the expression of lncRNAs related to apoptosis and autophagy in the peripheral blood mononuclear cells (PBMCs) of rheumatoid arthritis (RA). In addition, we aimed to correlate lncRNA expression profiles with clinical indexes and self-perception of patients (SPP). To this end, we employed RNA sequencing of lncRNAs in PBMCs from three patients with RA and three healthy controls. We used bioinformatics to screen several dysregulated lncRNAs related to apoptosis and autophagy. To validate key lncRNA candidates, we performed quantitative reverse transcriptase-PCR on 20 patients with RA and 20 healthy controls. We found the expression of seven lncRNAs (MAPKAPK5-AS1, ENST00000619282, C5orf17, LINC01189, LINC01006, DSCR9 and MIR22HG) was significantly altered in PBMCs of patients with RA. Receiver operating characteristic curve analysis suggested that MIR22HG [area under the curve (AUC) = 0.846, P = 0.000], DSCR9 (AUC = 0.783, P = 0.005), LINC01189 (AUC = 0.677, P = 0.034), MAPKAPK5-AS1 (AUC = 0.644, P = 0.025) and ENST00000619282 (AUC = 0.636, P = 0.043) are potential biomarkers of RA. Spearman's correlation analysis revealed selected lncRNAs correlated with clinical indexes and SPP. Therefore, we highlight that some lncRNAs related to apoptosis and autophagy may serve as potential biomarkers for diagnosis and monitoring of RA progression, which also correlate with several clinical indexes and SPP.
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Affiliation(s)
- Jianting Wen
- Anhui University of Traditional Chinese MedicineHefeiChina
| | - Jian Liu
- Department of Rheumatology and ImmunologyFirst Affiliated Hospital of Anhui University of Traditional Chinese MedicineHefeiChina
- Institute of RheumatologyAnhui College of Traditional Chinese MedicineHefeiChina
| | - Hui Jiang
- Department of Rheumatology and ImmunologyFirst Affiliated Hospital of Anhui University of Traditional Chinese MedicineHefeiChina
| | - Lei Wan
- Department of Rheumatology and ImmunologyFirst Affiliated Hospital of Anhui University of Traditional Chinese MedicineHefeiChina
- Institute of RheumatologyAnhui College of Traditional Chinese MedicineHefeiChina
| | - Ling Xin
- Department of Rheumatology and ImmunologyFirst Affiliated Hospital of Anhui University of Traditional Chinese MedicineHefeiChina
- Institute of RheumatologyAnhui College of Traditional Chinese MedicineHefeiChina
| | - Yue Sun
- Department of Rheumatology and ImmunologyFirst Affiliated Hospital of Anhui University of Traditional Chinese MedicineHefeiChina
- Institute of RheumatologyAnhui College of Traditional Chinese MedicineHefeiChina
| | - Pingheng Zhang
- Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Yanqiu Sun
- Anhui University of Traditional Chinese MedicineHefeiChina
| | - Ying Zhang
- Anhui University of Traditional Chinese MedicineHefeiChina
| | - Xinlei Du
- Anhui University of Traditional Chinese MedicineHefeiChina
| | - Xin Wang
- Anhui University of Traditional Chinese MedicineHefeiChina
| | - Jie Wang
- Anhui University of Traditional Chinese MedicineHefeiChina
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28
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McCormick JJ, King KE, Côté MD, McManus MK, Topshee SM, Hsu HS, Fujii N, Kenny GP. Regulation of autophagy following ex vivo heating in peripheral blood mononuclear cells from young adults. J Therm Biol 2020; 91:102643. [DOI: 10.1016/j.jtherbio.2020.102643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 06/07/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
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Colafrancesco S, Scrivo R, Barbati C, Conti F, Priori R. Targeting the Immune System for Pulmonary Inflammation and Cardiovascular Complications in COVID-19 Patients. Front Immunol 2020; 11:1439. [PMID: 32655577 PMCID: PMC7324709 DOI: 10.3389/fimmu.2020.01439] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 06/03/2020] [Indexed: 12/21/2022] Open
Abstract
In December 2019, following a cluster of pneumonia cases in China caused by a novel coronavirus (CoV), named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the infection disseminated worldwide and, on March 11th, 2020, the World Health Organization officially declared the pandemic of the relevant disease named coronavirus disease 2019 (COVID-19). In Europe, Italy was the first country facing a true health policy emergency, and, as at 6.00 p.m. on May 2nd, 2020, there have been more than 209,300 confirmed cases of COVID-19. Due to the increasing number of patients experiencing a severe outcome, global scientific efforts are ongoing to find the most appropriate treatment. The usefulness of specific anti-rheumatic drugs came out as a promising treatment option together with antiviral drugs, anticoagulants, and symptomatic and respiratory support. For this reason, we feel a duty to share our experience and our knowledge on the use of these drugs in the immune-rheumatologic field, providing in this review the rationale for their use in the COVID-19 pandemic.
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Affiliation(s)
| | | | | | - Fabrizio Conti
- Rheumatology Unit, Department of Clinical, Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
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Wu CY, Yang HY, Lai JH. Anti-Citrullinated Protein Antibodies in Patients with Rheumatoid Arthritis: Biological Effects and Mechanisms of Immunopathogenesis. Int J Mol Sci 2020; 21:ijms21114015. [PMID: 32512739 PMCID: PMC7312469 DOI: 10.3390/ijms21114015] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 05/30/2020] [Accepted: 06/02/2020] [Indexed: 12/11/2022] Open
Abstract
Individuals with high anti-citrullinated protein antibody (ACPA) titers have an increased risk of developing rheumatoid arthritis (RA). Although our knowledge of the generation and production of ACPAs has continuously advanced during the past decade, our understanding on the pathogenic mechanisms of how ACPAs interact with immune cells to trigger articular inflammation is relatively limited. Citrullination disorders drive the generation and maintenance of ACPAs, with profound clinical significance in patients with RA. The loss of tolerance to citrullinated proteins, however, is essential for ACPAs to exert their pathogenicity. N-linked glycosylation, cross-reactivity and the structural interactions of ACPAs with their citrullinated antigens further direct their biological functions. Although questions remain in the pathogenicity of ACPAs acting as agonists for a receptor-mediated response, immune complex (IC) formation, complement system activation, crystallizable fragment gamma receptor (FcγR) activation, cross-reactivity to joint cartilage and neutrophil extracellular trap (NET)-related mechanisms have all been suggested recently. This paper presents a critical review of the characteristics and possible biological effects and mechanisms of the immunopathogenesis of ACPAs in patients with RA.
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Affiliation(s)
- Chao-Yi Wu
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan;
- Chang Gung University, College of Medicine, Taoyuan 333, Taiwan;
| | - Huang-Yu Yang
- Chang Gung University, College of Medicine, Taoyuan 333, Taiwan;
- Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Jenn-Haung Lai
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
- Graduate Institute of Medical Science, National Defense Medical Center, Taipei 114, Taiwan
- Correspondence: ; Tel.: +886-2-8791-8382; Fax: +886-2-8791-8382
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Sadeghi S, Esmaeili S, Pourbagheri-Sigaroodi A, Safaroghli-Azar A, Bashash D. PI3K Abrogation Using Pan-PI3K Inhibitor BKM120 Gives Rise to a Significant Anticancer Effect on AML-Derived KG-1 Cells by Inducing Apoptosis and G2/M Arrest. Turk J Haematol 2020; 37:167-176. [PMID: 32160736 PMCID: PMC7463220 DOI: 10.4274/tjh.galenos.2020.2019.0440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objective: The association between PI3K overexpression and the acquisition of chemoresistance has attracted tremendous attention to this axis as an appealing target to revolutionize the conventional treatment strategies of human cancers. In the present study, we aimed to survey the inhibitory impact of the pan-PI3K inhibitor BKM120 on both cellular and molecular aspects of acute myeloid leukemia (AML)-derived KG-1 and U937 cells. Materials and Methods: We designed various assays to survey the antitumor impacts and molecular mechanisms underlying the action of BKM120 for the treatment of AML, and we performed experiments to check the effect of BKM120 in combination with idarubicin. Results: We found that PI3K inhibition diminished cell viability and metabolic activity and exerted a concentration-dependent growth-suppressive effect on the cells. Moreover, we suggested that the ability of BKM120 to induce its antiproliferative properties was mediated through the induction of p21-mediated G2/M cell-cycle arrest. Investigating the effect of inhibitor on the molecular features revealed not only that BKM120 reduced the expression of NF-κB antiapoptotic targets, but also that NF-κB suppression using bortezomib profoundly enhanced the cytotoxicity of the inhibitor, highlighting that the antileukemic effects of BKM120 are mediated, at least partly, through the modulation of the NF-κB pathway. Interestingly, we found that the single agent of BKM120 was unable to significantly alter the expression level of c-Myc; however, the capability of BKM120 to reduce the survival rate of AML cells was potentiated upon c-Myc inhibition using 10058-F4, suggestive of the plausible contribution of c-Myc in leukemic cell response to the PI3K inhibitor. Conclusion: Taken together, the results of this study reveal the efficacy of BKM120 as a therapeutic approach for AML; however, further investigations should be undertaken to determine the expediency of this inhibitor.
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Affiliation(s)
- Soroush Sadeghi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shadi Esmaeili
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atieh Pourbagheri-Sigaroodi
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ava Safaroghli-Azar
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, 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
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Wang W, Yang YP, Tasneem S, Daniyal M, Zhang L, Jia YZ, Jian YQ, Li B. Lanostane tetracyclic triterpenoids as important sources for anti-inflammatory drug discovery. WORLD JOURNAL OF TRADITIONAL CHINESE MEDICINE 2020. [DOI: 10.4103/wjtcm.wjtcm_17_20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Sugawara E, Kato M, Kudo Y, Lee W, Hisada R, Fujieda Y, Oku K, Bohgaki T, Amengual O, Yasuda S, Onodera T, Hatakeyama S, Atsumi T. Autophagy promotes citrullination of VIM (vimentin) and its interaction with major histocompatibility complex class II in synovial fibroblasts. Autophagy 2019; 16:946-955. [PMID: 31486697 DOI: 10.1080/15548627.2019.1664144] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
We aimed to investigate the involvement of macroautophagy/autophagy in autoimmunity in rheumatoid arthritis (RA) through citrullination of VIM (vimentin) and its interaction with MHC class II in synovial fibroblasts (SFs). The cell surface expression of MHC class II and B7 costimulatory molecules on SFs was analyzed by flow cytometry after treatment with IFNG/IFN-γ (interferon gamma). Intracellular citrullinated autoantigens in SFs were analyzed by immunoblotting using serum from anti-citrullinated peptide antibodies (ACPA)-positive patient as a primary antibody. SFs were incubated in serum-free medium or treated with proteasome inhibitor MG132 to induce autophagy. An autophagy inhibitor 3-methyladenin (3-MA) was used. Intracellular citrullinated VIM (cVIM) was evaluated by immunoblotting and immunocytochemistry. The interaction between MHC class II and cVIM was evaluated with co-immunoprecipitation and proximity ligation assay (PLA). We demonstrated that MHC class II, CD274/B7-H1 and PDCD1LG2/B7-DC were expressed on SFs following treatment with IFNG whereas CD276/B7-H3 was detected on SFs regardless of the presence of IFNG. ACPA-positive sera recognized a 54 kDa protein in SFs. By immunoprecipitation, the 54 kDa protein recognized by RA sera was revealed to be cVIM. Following induction of autophagy, intracellular cVIM was increased in SFs but the effect was canceled by 3-MA. The interaction between MHC class II and cVIM was demonstrated by co-immunoprecipitation. Furthermore, PLA revealed the significant increase of MHC class II-cVIM interaction following induction of autophagy. Our findings suggest that SFs may contribute to the autoimmunity in RA through citrullination of VIM and its interaction with MHC class II promoted by autophagy.Abbreviations: 3-MA: 3-methyladenine; ACPA: anti-citrullinated peptide antibodies; anti-CCP: anti-cyclic citrullinated peptide antibody; cVIM: citrullinated VIM; BECN1: beclin1; DAPI: 4',6-diamidino-2-phenylindole; FBS: fetal bovine serum; HLA: human leukocyte antigen; IFNG/IFN-γ: interferon gamma; IL6: interleukin 6; IP: immunoprecipitation; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MFI: mean fluorescence index; MHC: major histocompatibility complex; OA: osteoarthritis; PADI: peptidyl arginine deiminase; PepA: pepstatin A; PBS: phosphate-buffered saline; PtdIns3K: phosphatidylinositol 3-kinase; RA: rheumatoid arthritis; SFs: synovial fibroblasts; siRNA: small interfering RNA; VIM: vimentin.
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Affiliation(s)
- Eri Sugawara
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masaru Kato
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuki Kudo
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Wenshi Lee
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ryo Hisada
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuichiro Fujieda
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kenji Oku
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Toshiyuki Bohgaki
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Olga Amengual
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shinsuke Yasuda
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tomohiro Onodera
- Department of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shigetsugu Hatakeyama
- Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tatsuya Atsumi
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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