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Huang M, Li Y, Li Y, Liu S. C-Terminal Binding Protein: Regulator between Viral Infection and Tumorigenesis. Viruses 2024; 16:988. [PMID: 38932279 PMCID: PMC11209466 DOI: 10.3390/v16060988] [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: 05/23/2024] [Revised: 06/16/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
C-terminal binding protein (CtBP), a transcriptional co-repressor, significantly influences cellular signaling, impacting various biological processes including cell proliferation, differentiation, apoptosis, and immune responses. The CtBP family comprises two highly conserved proteins, CtBP1 and CtBP2, which have been shown to play critical roles in both tumorigenesis and the regulation of viral infections. Elevated CtBP expression is noted in various tumor tissues, promoting tumorigenesis, invasiveness, and metastasis through multiple pathways. Additionally, CtBP's role in viral infections varies, exhibiting differing or even opposing effects depending on the virus. This review synthesizes the advances in CtBP's function research in viral infections and virus-associated tumorigenesis, offering new insights into potential antiviral and anticancer strategies.
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Affiliation(s)
- Meihui Huang
- Xiangya School of Medicine, Central South University, Changsha 410013, China; (M.H.); (Y.L.); (Y.L.)
| | - Yucong Li
- Xiangya School of Medicine, Central South University, Changsha 410013, China; (M.H.); (Y.L.); (Y.L.)
| | - Yuxiao Li
- Xiangya School of Medicine, Central South University, Changsha 410013, China; (M.H.); (Y.L.); (Y.L.)
| | - Shuiping Liu
- Xiangya School of Medicine, Central South University, Changsha 410013, China; (M.H.); (Y.L.); (Y.L.)
- Department of Microbiology, School of Basic Medical Science, Central South University, Changsha 410013, China
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Wei T, Guo Y, Huang C, Sun M, Zhou B, Gao J, Shen W. Fibroblast-to-cardiomyocyte lactate shuttle modulates hypertensive cardiac remodelling. Cell Biosci 2023; 13:151. [PMID: 37580825 PMCID: PMC10426103 DOI: 10.1186/s13578-023-01098-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/30/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND Cardiac fibroblasts (CFs) and cardiomyocytes are the major cell populations in the heart. CFs not only support cardiomyocytes by producing extracellular matrix (ECM) but also assimilate myocardial nutrient metabolism. Recent studies suggest that the classical intercellular lactate shuttle may function in the heart, with lactate transported from CFs to cardiomyocytes. However, the underlying mechanisms regarding the generation and delivery of lactate from CFs to cardiomyocytes have yet to be explored. RESULTS In this study, we found that angiotensin II (Ang II) induced CFs differentiation into myofibroblasts that, driven by cell metabolism, then underwent a shift from oxidative phosphorylation to aerobic glycolysis. During this metabolic conversion, the expression of amino acid synthesis 5-like 1 (GCN5L1) was upregulated and bound to and acetylated mitochondrial pyruvate carrier 2 (MPC2) at lysine residue 19. Hyperacetylation of MPC2k19 disrupted mitochondrial pyruvate uptake and mitochondrial respiration. GCN5L1 ablation downregulated MPC2K19 acetylation, stimulated mitochondrial pyruvate metabolism, and inhibited glycolysis and lactate accumulation. In addition, myofibroblast-specific GCN5L1-knockout mice (GCN5L1fl/fl: Periostin-Cre) showed reduced myocardial hypertrophy and collagen content in the myocardium. Moreover, cardiomyocyte-specific monocarboxylate transporter 1 (MCT1)-knockout mice (MCT1fl/fl: Myh6-Cre) exhibited blocked shuttling of lactate from CFs to cardiomyocytes and attenuated Ang II-induced cardiac hypertrophy. CONCLUSIONS Our findings suggest that GCN5L1-MPC2 signalling pathway alters metabolic patterns, and blocking MCT1 interrupts the fibroblast-to-cardiomyocyte lactate shuttle, which may attenuate cardiac remodelling in hypertension.
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Affiliation(s)
- Tong Wei
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Department of Cardiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Yuetong Guo
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chenglin Huang
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Mengwei Sun
- Key Laboratory of State General Administration of Sport, Shanghai Research Institute of Sports Science, Shanghai, 200030, China
| | - Bin Zhou
- New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jing Gao
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Weili Shen
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Altered Transcriptional Regulation of Glycolysis in Circulating CD8+ T Cells of Rheumatoid Arthritis Patients. Genes (Basel) 2022; 13:genes13071216. [PMID: 35886000 PMCID: PMC9323564 DOI: 10.3390/genes13071216] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 12/04/2022] Open
Abstract
Peripheral T lymphocytes of rheumatoid arthritis (RA) patients show pathological changes in their metabolic pathways, especially glycolysis. These changes may drive the increased proliferation and tissue invasiveness of RA T cells. In order to study the transcriptional regulation underlying these alterations, we analysed publicly available RNA sequencing data from circulating T lymphocyte subsets of healthy individuals, untreated RA patients, and patients undergoing treatment for RA. Differential co-expression networks were created using sample-wise edge weights from an analysis called “linear interpolation to obtain network estimates for single sample” (lionessR), and annotated using the Gene Transcription Regulation Database (GTRD). Genes with high centrality scores were identified. CD8+ effector memory cells (Tem) and CD8+CD45RA+ effector memory cells (Temra) showed large changes in the transcriptional regulation of glycolysis in untreated RA. PFKFB3 and GAPDH were differentially regulated and had high centrality scores in CD8+ Tem cells. PFKFB3 downregulation may be due to HIF1A post transcriptional inhibition. Tocilizumab treatment partially reversed the RA-associated differential expression of several metabolic and regulatory genes. MYC was upregulated and had high centrality scores in RA CD8+ Temra cells; however, its glycolysis targets were unaltered. The upregulation of the PI3K-AKT and mTOR pathways may explain MYC upregulation.
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Decreased Expression of MPC2 Contributes to Aerobic Glycolysis and Colorectal Cancer Proliferation by Activating mTOR Pathway. J Immunol Res 2021; 2021:6618837. [PMID: 33791391 PMCID: PMC7984920 DOI: 10.1155/2021/6618837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/09/2021] [Accepted: 03/05/2021] [Indexed: 11/17/2022] Open
Abstract
Mitochondrial Pyruvate Carrier 1 (MPC1), one of the rate-limiting proteins involved in glycolysis metabolism, has been demonstrated as a tumor inhibitor in several cancers. This study was conducted with the aim of exploring the role and underlying mechanisms of MPC2 in colorectal cancer (CRC). Here, we found that MPC2 expression was decreased in CRC samples. According to the analysis on our TMA data, lower expression of MPC2 is correlated with a higher incidence of distant metastasis and lymph node invasion, bigger tumor size, low survival rate of patients, and advanced T stages. Functionally, in vivo/vitro experiments showed that MPC2 knockdown induced CRC cell proliferation and growth, while MPC2 overexpression inhibited the proliferation and growth of CRC. Further study demonstrated that MPC2 knockdown resulted in aerobic glycolysis in CRC cells. Similarly, MPC2 overexpression in CRC cells also caused inhibited aerobic glycolysis. Further study found that MPC2 knockdown in CRC cell lines activated the mTOR signaling pathway, and the addition of rapamycin reversed the promoting effect of MPC2 knockdown on CRC proliferation and glycolysis. Likewise, the addition of MHY1485 also reversed the MPC2 overexpression's role in hindering aerobic glycolysis in CRC cells. Collectively, our study established that low expression of MPC2 led to CRC growth as well as aerobic glycolysis through the regulation of the mTOR pathway in CRC cells, indicating a potential biomarker and therapy target for CRC.
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Böhme I, Schönherr R, Eberle J, Bosserhoff AK. Membrane Transporters and Channels in Melanoma. Rev Physiol Biochem Pharmacol 2020; 181:269-374. [PMID: 32737752 DOI: 10.1007/112_2020_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent research has revealed that ion channels and transporters can be important players in tumor development, progression, and therapy resistance in melanoma. For example, members of the ABC family were shown to support cancer stemness-like features in melanoma cells, while several members of the TRP channel family were reported to act as tumor suppressors.Also, many transporter proteins support tumor cell viability and thus suppress apoptosis induction by anticancer therapy. Due to the high number of ion channels and transporters and the resulting high complexity of the field, progress in understanding is often focused on single molecules and is in total rather slow. In this review, we aim at giving an overview about a broad subset of ion transporters, also illustrating some aspects of the field, which have not been addressed in detail in melanoma. In context with the other chapters in this special issue on "Transportome Malfunctions in the Cancer Spectrum," a comparison between melanoma and these tumors will be possible.
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Affiliation(s)
- Ines Böhme
- Institute of Biochemistry, Emil Fischer Center, Friedrich-Alexander-University of Erlangen-Nürnberg, Erlangen, Germany
| | - Roland Schönherr
- Institute of Biochemistry and Biophysics, Friedrich Schiller University Jena and Jena University Hospital, Jena, Germany
| | - Jürgen Eberle
- Department of Dermatology, Venerology and Allergology, Skin Cancer Center Charité, University Medical Center Charité, Berlin, Germany
| | - Anja Katrin Bosserhoff
- Institute of Biochemistry, Emil Fischer Center, Friedrich-Alexander-University of Erlangen-Nürnberg, Erlangen, Germany. .,Comprehensive Cancer Center (CCC) Erlangen-EMN, Erlangen, Germany.
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Deng Y, Guo W, Li G, Li S, Li H, Li X, Niu B, Song M, Zhang Y, Xu Z, Li F. Protocatechuic Aldehyde Represses Proliferation and Migration of Breast Cancer Cells through Targeting C-terminal Binding Protein 1. J Breast Cancer 2020; 23:20-35. [PMID: 32140267 PMCID: PMC7043946 DOI: 10.4048/jbc.2020.23.e7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 12/02/2019] [Indexed: 11/30/2022] Open
Abstract
Purpose C-terminal binding protein 1 (CtBP1) is a transcriptional co-repressor that is overexpressed in many cancers. CtBP1 transcriptionally represses a broad array of tumor suppressors, which promotes cancer cell proliferation, migration, invasion, and resistance to apoptosis. Recent studies have demonstrated that CtBP1 is a potential target for cancer therapy. This study was designed to screen for compounds that potentially target CtBP1. Methods Using a structure-based virtual screening for CtBP1 inhibitors, we found protocatechuic aldehyde (PA), a natural compound found in the root of a traditional Chinese herb, Salvia miltiorrhiza, that directly binds to CtBP1. Microscale thermophoresis assay was performed to determine whether PA and CtBP1 directly bind to each other. Further, clustered regularly interspaced short palindromic repeats associated Cas9 nuclease-mediated CtBP1 knockout in breast cancer cells was used to validate the CtBP1 targeting specificity of PA. Results Functional studies showed that PA repressed the proliferation and migration of breast cancer cells. Furthermore, PA elevated the expression of the downstream targets of CtBP1, p21 and E-cadherin, and decreased CtBP1 binding affinity for the promoter regions of p21 and E-cadherin in breast cancer cells. However, PA did not affect the expression of p21 and E-cadherin in the CtBP1 knockout breast cancer cells. In addition, the CtBP1 knockout breast cancer cells showed resistance to PA-induced repression of proliferation and migration. Conclusion Our findings demonstrated that PA directly bound to CtBP1 and inhibited the growth and migration of breast cancer cells through CtBP1 inhibition. Structural modifications of PA are further required to enhance its binding affinity and selectivity for CtBP1.
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Affiliation(s)
- Yu Deng
- School of Medicine, Chengdu University, Chengdu, China.,Institute of Cancer Biology and Drug Discovery, Chengdu University, Chengdu, China
| | - Wanjun Guo
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guancheng Li
- The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shuang Li
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
| | - Hong Li
- Department of Dermatology, School of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - Xinyan Li
- Department of Epidemiology and Biostatistics, College for Public Health and Social Justice, Saint Louis University, St. Louis, MO, USA
| | - Bei Niu
- School of Medicine, Chengdu University, Chengdu, China
| | - Mingzhu Song
- School of Medicine, Chengdu University, Chengdu, China
| | - Yamei Zhang
- Central Lab, Chengdu Univerisity Hospital, Chengdu, China
| | - Zhijian Xu
- CAS Key Laboratory of Receptor Research, Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Fulun Li
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Dickherber ML, Garnett-Benson C. NAD-linked mechanisms of gene de-repression and a novel role for CtBP in persistent adenovirus infection of lymphocytes. Virol J 2019; 16:161. [PMID: 31864392 PMCID: PMC6925507 DOI: 10.1186/s12985-019-1265-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 12/03/2019] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Adenovirus (AdV) infection is ubiquitous in the human population and causes acute infection in the respiratory and gastrointestinal tracts. In addition to lytic infections in epithelial cells, AdV can persist in a latent form in mucosal lymphocytes, and nearly 80% of children contain viral DNA in the lymphocytes of their tonsils and adenoids. Reactivation of latent AdV is thought to be the source of deadly viremia in pediatric transplant patients. Adenovirus latency and reactivation in lymphocytes is not well studied, though immune cell activation has been reported to promote productive infection from latency. Lymphocyte activation induces global changes in cellular gene expression along with robust changes in metabolic state. The ratio of free cytosolic NAD+/NADH can impact gene expression via modulation of transcriptional repressor complexes. The NAD-dependent transcriptional co-repressor C-terminal Binding Protein (CtBP) was discovered 25 years ago due to its high affinity binding to AdV E1A proteins, however, the role of this interaction in the viral life cycle remains unclear. METHODS The dynamics of persistently- and lytically-infected cells are evaluated. RT-qPCR is used to evaluate AdV gene expression following lymphocyte activation, treatment with nicotinamide, or disruption of CtBP-E1A binding. RESULTS PMA and ionomycin stimulation shifts the NAD+/NADH ratio in lymphocytic cell lines and upregulates viral gene expression. Direct modulation of NAD+/NADH by nicotinamide treatment also upregulates early and late viral transcripts in persistently-infected cells. We found differential expression of the NAD-dependent CtBP protein homologs between lymphocytes and epithelial cells, and inhibition of CtBP complexes upregulates AdV E1A expression in T lymphocyte cell lines but not in lytically-infected epithelial cells. CONCLUSIONS Our data provide novel insight into factors that can regulate AdV infections in activated human lymphocytes and reveal that modulation of cellular NAD+/NADH can de-repress adenovirus gene expression in persistently-infected lymphocytes. In contrast, disrupting the NAD-dependent CtBP repressor complex interaction with PxDLS-containing binding partners paradoxically alters AdV gene expression. Our findings also indicate that CtBP activities on viral gene expression may be distinct from those occurring upon metabolic alterations in cellular NAD+/NADH ratios or those occurring after lymphocyte activation.
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Affiliation(s)
- Megan L Dickherber
- Charlie Garnett-Benson, Department of Biology, Georgia State University, 161 Jesse Hill Jr. Dr, Atlanta, GA, 30303, USA
| | - Charlie Garnett-Benson
- Charlie Garnett-Benson, Department of Biology, Georgia State University, 161 Jesse Hill Jr. Dr, Atlanta, GA, 30303, USA.
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Lotti LV, Vespa S, Pantalone MR, Perconti S, Esposito DL, Visone R, Veronese A, Paties CT, Sanna M, Verginelli F, Nauclér CS, Mariani-Costantini R. A Developmental Perspective on Paragangliar Tumorigenesis. Cancers (Basel) 2019; 11:cancers11030273. [PMID: 30813557 PMCID: PMC6468609 DOI: 10.3390/cancers11030273] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 12/13/2022] Open
Abstract
In this review, we propose that paraganglioma is a fundamentally organized, albeit aberrant, tissue composed of neoplastic vascular and neural cell types that share a common origin from a multipotent mesenchymal-like stem/progenitor cell. This view is consistent with the pseudohypoxic footprint implicated in the molecular pathogenesis of the disease, is in harmony with the neural crest origin of the paraganglia, and is strongly supported by the physiological model of carotid body hyperplasia. Our immunomorphological and molecular studies of head and neck paragangliomas demonstrate in all cases relationships between the vascular and the neural tumor compartments, that share mesenchymal and immature vasculo-neural markers, conserved in derived cell cultures. This immature, multipotent phenotype is supported by constitutive amplification of NOTCH signaling genes and by loss of the microRNA-200s and -34s, which control NOTCH1, ZEB1, and PDGFRA in head and neck paraganglioma cells. Importantly, the neuroepithelial component is distinguished by extreme mitochondrial alterations, associated with collapse of the ΔΨm. Finally, our xenograft models of head and neck paraganglioma demonstrate that mesenchymal-like cells first give rise to a vasculo-angiogenic network, and then self-organize into neuroepithelial-like clusters, a process inhibited by treatment with imatinib.
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Affiliation(s)
- Lavinia Vittoria Lotti
- Department of Experimental Medicine, "La Sapienza" University, Viale Regina Elena 324, 00161 Rome, Italy.
| | - Simone Vespa
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Mattia Russel Pantalone
- Department of Medicine (Solna), Division of Microbial Pathogenesis, BioClinicum, Karolinska Institutet, 17164 Stockholm, Sweden.
| | - Silvia Perconti
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Diana Liberata Esposito
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Rosa Visone
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Angelo Veronese
- Department of Medicine and Aging Sciences, "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
| | - Carlo Terenzio Paties
- Department of Oncology-Hematology, Service of Anatomic Pathology, "Guglielmo da Saliceto" Hospital, Via Taverna 49, 29100 Piacenza, Italy.
| | - Mario Sanna
- Skull Base Unit, "Gruppo Otologico" Piacenza-Roma, Via Antonio Emmanueli, 42, 29121 Piacenza, Italy.
| | - Fabio Verginelli
- Department of Pharmacy, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Cecilia Soderberg Nauclér
- Department of Medicine (Solna), Division of Microbial Pathogenesis, BioClinicum, Karolinska Institutet, 17164 Stockholm, Sweden.
| | - Renato Mariani-Costantini
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
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