1
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Ortiz ANR, Zhang L, Ash PE, Basu A, Puri S, van der Spek SJ, Wang Z, Dorrian L, Emili A, Wolozin B. Proximity labeling reveals dynamic changes in the SQSTM1 protein network. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.12.571324. [PMID: 38168279 PMCID: PMC10760047 DOI: 10.1101/2023.12.12.571324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Sequestosome1 (SQSTM1) is an autophagy receptor that mediates degradation of intracellular cargo, including protein aggregates, through multiple protein interactions. These interactions form the SQSTM1 protein network, and these interactions are mediated by SQSTM1 functional interaction domains, which include LIR, PB1, UBA and KIR. Technological advances in cell biology continue to expand our knowledge of the SQSTM1 protein network and of the relationship of the actions of the SQSTM1 protein network in cellular physiology and disease states. Here we apply proximity profile labeling to investigate the SQSTM1 protein interaction network by fusing TurboID with the human protein SQSTM1 (TurboID::SQSTM1). This chimeric protein displayed well-established SQSTM1 features including production of SQSTM1 intracellular bodies, binding to known SQSTM1 interacting partners, and capture of novel SQSTM1 protein interactors. Strikingly, aggregated tau protein altered the protein interaction network of SQSTM1 to include many stress-associated proteins. We demonstrate the importance of the PB1 and/or UBA domains for binding network members, including the K18 domain of tau. Overall, our work reveals the dynamic landscape of the SQSTM1 protein network and offers a resource to study SQSTM1 function in cellular physiology and disease state.
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Affiliation(s)
- Alejandro N. Rondón Ortiz
- Department of Biology, Boston University, Boston, MA 02215, USA
- Center for Network Systems Biology, Boston University, Boston, MA 02215, USA
- Departments of Anatomy & Neurobiology, Boston University, Boston, MA 02215, USA
| | - Lushuang Zhang
- Departments of Anatomy & Neurobiology, Boston University, Boston, MA 02215, USA
| | - Peter E.A. Ash
- Departments of Anatomy & Neurobiology, Boston University, Boston, MA 02215, USA
| | - Avik Basu
- Center for Network Systems Biology, Boston University, Boston, MA 02215, USA
- Department of Biochemistry, Boston University, Boston, MA 02115, USA
- Department of Chemical Physiology & Biochemistry, Oregon Health Sciences University, Portland, OR 97239, USA
| | - Sambhavi Puri
- Departments of Anatomy & Neurobiology, Boston University, Boston, MA 02215, USA
| | | | - Zihan Wang
- Departments of Anatomy & Neurobiology, Boston University, Boston, MA 02215, USA
| | - Luke Dorrian
- Departments of Anatomy & Neurobiology, Boston University, Boston, MA 02215, USA
| | - Andrew Emili
- Center for Network Systems Biology, Boston University, Boston, MA 02215, USA
- Department of Biochemistry, Boston University, Boston, MA 02115, USA
- Department of Chemical Physiology & Biochemistry, Oregon Health Sciences University, Portland, OR 97239, USA
| | - Benjamin Wolozin
- Departments of Anatomy & Neurobiology, Boston University, Boston, MA 02215, USA
- Center for Systems Neuroscience, Boston University, Boston, MA 02115, USA
- Center for Neurophotonics, Boston University, Boston, MA 02115, USA
- Department of Neurology, Boston University, Boston, MA 02115, USA
- Department of Pharmacology, Physiology and Biophysics
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2
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Páscoa I, Biltes R, Sousa J, Preto MAC, Vasconcelos V, Castro LF, Ruivo R, Cunha I. A Multiplex Molecular Cell-Based Sensor to Detect Ligands of PPARs: An Optimized Tool for Drug Discovery in Cyanobacteria. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23031338. [PMID: 36772378 PMCID: PMC9919141 DOI: 10.3390/s23031338] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 06/12/2023]
Abstract
Cyanobacteria produce a wealth of secondary metabolites. Since these organisms attach fatty acids into molecules in unprecedented ways, cyanobacteria can serve as a novel source for bioactive compounds acting as ligands for Peroxisome Proliferator-Activated Receptors (PPAR). PPARs (PPARα, PPARβ/δ and PPARγ) are ligand-activated nuclear receptors, involved in the regulation of various metabolic and cellular processes, thus serving as potential drug targets for a variety of pathologies. Yet, given that PPARs' agonists can have pan-, dual- or isoform-specific action, some controversy has been raised over currently approved drugs and their side effects, highlighting the need for novel molecules. Here, we expand and validate a cell-based PPAR transactivation activity biosensor, and test it in a screening campaign to guide drug discovery. Biosensor upgrades included the use of different reporter genes to increase signal intensity and stability, a different promoter to modulate reporter gene expression, and multiplexing to improve efficiency. Sensor's limit of detection (LOD) ranged from 0.36-0.89 nM in uniplex and 0.89-1.35 nM in multiplex mode. In triplex mode, the sensor's feature screening, a total of 848 fractions of 96 cyanobacteria extracts were screened. Hits were confirmed in multiplex mode and in uniplex mode, yielding one strain detected to have action on PPARα and three strains to have dual action on PPARα and -β.
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Affiliation(s)
- Inês Páscoa
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
| | - Rita Biltes
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- FCUP-Faculty of Sciences, Department of Biology, University of Porto, 4169-007 Porto, Portugal
| | - João Sousa
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, University of Porto, 4050-313 Porto, Portugal
- FCUP-Faculty of Sciences, Department of Biology, University of Porto, 4169-007 Porto, Portugal
| | - Marco Aurélio Correia Preto
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
| | - Vitor Vasconcelos
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
- FCUP-Faculty of Sciences, Department of Biology, University of Porto, 4169-007 Porto, Portugal
| | - Luís Filipe Castro
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
- FCUP-Faculty of Sciences, Department of Biology, University of Porto, 4169-007 Porto, Portugal
| | - Raquel Ruivo
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
| | - Isabel Cunha
- CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, 4450-208 Matosinhos, Portugal
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3
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Staurenghi E, Leoni V, Lo Iacono M, Sottero B, Testa G, Giannelli S, Leonarduzzi G, Gamba P. ApoE3 vs. ApoE4 Astrocytes: A Detailed Analysis Provides New Insights into Differences in Cholesterol Homeostasis. Antioxidants (Basel) 2022; 11:2168. [PMID: 36358540 PMCID: PMC9686673 DOI: 10.3390/antiox11112168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 07/30/2023] Open
Abstract
The strongest genetic risk factor for sporadic Alzheimer's disease (AD) is the presence of the ε4 allele of the apolipoprotein E (ApoE) gene, the major apolipoprotein involved in brain cholesterol homeostasis. Being astrocytes the main producers of cholesterol and ApoE in the brain, we investigated the impact of the ApoE genotype on astrocyte cholesterol homeostasis. Two mouse astrocytic cell lines expressing the human ApoE3 or ApoE4 isoform were employed. Gas chromatography-mass spectrometry (GC-MS) analysis pointed out that the levels of total cholesterol, cholesterol precursors, and various oxysterols are altered in ApoE4 astrocytes. Moreover, the gene expression analysis of more than 40 lipid-related genes by qRT-PCR showed that certain genes are up-regulated (e.g., CYP27A1) and others down-regulated (e.g., PPARγ, LXRα) in ApoE4, compared to ApoE3 astrocytes. Beyond confirming the significant reduction in the levels of PPARγ, a key transcription factor involved in the maintenance of lipid homeostasis, Western blotting showed that both intracellular and secreted ApoE levels are altered in ApoE4 astrocytes, as well as the levels of receptors and transporters involved in lipid uptake/efflux (ABCA1, LDLR, LRP1, and ApoER2). Data showed that the ApoE genotype clearly affects astrocytic cholesterol homeostasis; however, further investigation is needed to clarify the mechanisms underlying these differences and the consequences on neighboring cells. Indeed, drug development aimed at restoring cholesterol homeostasis could be a potential strategy to counteract AD.
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Affiliation(s)
- Erica Staurenghi
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043 Turin, Italy
| | - Valerio Leoni
- Laboratory of Clinical Biochemistry, Hospital Pius XI of Desio, ASST-Brianza, University of Milano-Bicocca, 20126 Monza, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Monza, Italy
| | - Marco Lo Iacono
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043 Turin, Italy
| | - Barbara Sottero
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043 Turin, Italy
| | - Gabriella Testa
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043 Turin, Italy
| | - Serena Giannelli
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043 Turin, Italy
| | - Gabriella Leonarduzzi
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043 Turin, Italy
| | - Paola Gamba
- Department of Clinical and Biological Sciences, University of Turin, Orbassano, 10043 Turin, Italy
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4
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Zhu Z, Zhai Y, Hao Y, Wang Q, Han F, Zheng W, Hong J, Cui L, Jin W, Ma S, Yang L, Cheng G. Specific anti-glioma targeted-delivery strategy of engineered small extracellular vesicles dual-functionalised by Angiopep-2 and TAT peptides. J Extracell Vesicles 2022; 11:e12255. [PMID: 35932288 PMCID: PMC9451528 DOI: 10.1002/jev2.12255] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 06/04/2022] [Accepted: 07/22/2022] [Indexed: 01/06/2023] Open
Abstract
Glioma is one of the primary malignant brain tumours in adults, with a poor prognosis. Pharmacological reagents targeting glioma are limited to achieve the desired therapeutic effect due to the presence of blood-brain barrier (BBB). Effectively crossing the BBB and specifically targeting to the brain tumour are the major challenge for the glioma treatments. Here, we demonstrate that the well-defined small extracellular vesicles (sEVs) with dual-targeting drug delivery and cell-penetrating functions, modified by Angiopep-2 and trans-activator of transcription peptides, enable efficient and specific chemotherapy for glioma. The high efficiency of engineered sEVs in targeting BBB and glioma was assessed in both monolayer culture cells and BBB model in vitro, respectively. The observed high targeting efficiency was re-validated in subcutaneous tumour and orthotopic glioma mice models. After loading the doxorubicin into dual-modified functional sEVs, this specific dual-targeting delivery system could cross the BBB, reach the glioma, and penetrate the tumour. Such a mode of drug delivery significantly improved more than 2-fold survival time of glioma mice with very few side effects. In conclusion, utilization of the dual-modified sEVs represents a unique and efficient strategy for drug delivery, holding great promise for the treatments of central nervous system diseases.
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Affiliation(s)
- Zhanchi Zhu
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Yuanxin Zhai
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Ying Hao
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China.,Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Guangdong, China
| | - Quanwei Wang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Fang Han
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Wenlong Zheng
- Suzhou Kowloon Hospital, Shanghai Jiaotong University Medical School, Suzhou, China
| | - Jing Hong
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Leisha Cui
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Wei Jin
- Drum Tower Hospital, Nanjing University, Nanjing, China
| | - Sancheng Ma
- Suzhou Kowloon Hospital, Shanghai Jiaotong University Medical School, Suzhou, China
| | - Lingyan Yang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Guosheng Cheng
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano Bionics, Chinese Academy of Sciences, Suzhou, China.,Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Guangdong, China
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5
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Marmentini C, Guimarães DSPSF, de Lima TI, Teófilo FBS, da Silva NS, Soares GM, Boschero AC, Kurauti MA. Rosiglitazone protects INS-1E cells from human islet amyloid polypeptide toxicity. Eur J Pharmacol 2022; 928:175122. [PMID: 35764131 DOI: 10.1016/j.ejphar.2022.175122] [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: 02/12/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 11/18/2022]
Abstract
Human islet amyloid polypeptide (hIAPP or amylin) is a hormone co-secreted with insulin by pancreatic β-cells, and is the main component of islet amyloid. Islet amyloid is found in the pancreas of patients with type 2 diabetes and may be involved in β-cell dysfunction and death, observed in this disease. Thus, counteracting islet amyloid toxicity represents a therapeutic approach to preserve β-cell mass and function. In this sense, thiazolidinediones (TZDs), as rosiglitazone, have shown protective effects against other harmful insults to β-cells. For this reason, we investigated whether rosiglitazone could protect β-cells from hIAPP-induced cell death and the underlying mechanisms mediating such effect. Here, we show that rosiglitazone improved the viability of hIAPP-exposed INS-1E cells. This benefit is not dependent on the insulin-degrading enzyme (IDE) since rosiglitazone did not modulate IDE protein content and activity. However, rosiglitazone inhibited hIAPP fibrillation and decreased hIAPP-induced expression of C/EBP homologous protein (CHOP) (CTL 100.0 ± 8.4; hIAPP 182.7 ± 19.1; hIAPP + RGZ 102.8 ± 9.5), activating transcription factor-4 (ATF4) (CTL 100.0 ± 3.1; hIAPP 234.9 ± 19.3; hIAPP + RGZ 129.6 ± 3.0) and phospho-eukaryotic initiation factor 2-alpha (p-eIF2α) (CTL 100.0 ± 31.1; hIAPP 234.1 ± 36.2; hIAPP + RGZ 150.4 ± 18.0). These findings suggest that TZDs treatment may be a promising approach to preserve β-cell mass and function by inhibiting islet amyloid formation and decreasing endoplasmic reticulum stress hIAPP-induced.
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Affiliation(s)
- Carine Marmentini
- Laboratory of Endocrine Pancreas and Metabolism, Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Dimitrius Santiago P S F Guimarães
- Laboratory of Endocrine Pancreas and Metabolism, Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Tanes I de Lima
- Laboratory of Endocrine Pancreas and Metabolism, Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Francisco Breno S Teófilo
- Electron Microscopy Laboratory, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Natália S da Silva
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Gabriela M Soares
- Laboratory of Endocrine Pancreas and Metabolism, Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Antonio C Boschero
- Laboratory of Endocrine Pancreas and Metabolism, Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Mirian A Kurauti
- Department of Physiological Sciences, Biological Sciences Center, State University of Maringa (UEM), Maringa, Parana, Brazil.
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6
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Van Den Eeckhout B, Huyghe L, Van Lint S, Burg E, Plaisance S, Peelman F, Cauwels A, Uzé G, Kley N, Gerlo S, Tavernier J. Selective IL-1 activity on CD8 + T cells empowers antitumor immunity and synergizes with neovasculature-targeted TNF for full tumor eradication. J Immunother Cancer 2021; 9:jitc-2021-003293. [PMID: 34772757 PMCID: PMC8593706 DOI: 10.1136/jitc-2021-003293] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2021] [Indexed: 01/31/2023] Open
Abstract
Background Clinical success of therapeutic cancer vaccines depends on the ability to mount strong and durable antitumor T cell responses. To achieve this, potent cellular adjuvants are highly needed. Interleukin-1β (IL-1β) acts on CD8+ T cells and promotes their expansion and effector differentiation, but toxicity and undesired tumor-promoting side effects hamper efficient clinical application of this cytokine. Methods This ‘cytokine problem’ can be solved by use of AcTakines (Activity-on-Target cytokines), which represent fusions between low-activity cytokine mutants and cell type-specific single-domain antibodies. AcTakines deliver cytokine activity to a priori selected cell types and as such evade toxicity and unwanted off-target side effects. Here, we employ subcutaneous melanoma and lung carcinoma models to evaluate the antitumor effects of AcTakines. Results In this work, we use an IL-1β-based AcTakine to drive proliferation and effector functionality of antitumor CD8+ T cells without inducing measurable toxicity. AcTakine treatment enhances diversity of the T cell receptor repertoire and empowers adoptive T cell transfer. Combination treatment with a neovasculature-targeted tumor necrosis factor (TNF) AcTakine mediates full tumor eradication and establishes immunological memory that protects against secondary tumor challenge. Interferon-γ was found to empower this AcTakine synergy by sensitizing the tumor microenvironment to TNF. Conclusions Our data illustrate that anticancer cellular immunity can be safely promoted with an IL-1β-based AcTakine, which synergizes with other immunotherapies for efficient tumor destruction.
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Affiliation(s)
- Bram Van Den Eeckhout
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Leander Huyghe
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Sandra Van Lint
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Elianne Burg
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | | | - Frank Peelman
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Anje Cauwels
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Gilles Uzé
- IRMB, University Montpellier, INSERM, CNRS, Montpellier, France
| | - Niko Kley
- Orionis Biosciences Inc, Waltham, Massachusetts, USA
| | - Sarah Gerlo
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium .,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Jan Tavernier
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium .,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Orionis Biosciences Inc, Waltham, Massachusetts, USA
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7
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Balzi W, Roncadori A, Danesi V, Massa I, Manunta S, Gentili N, Delmonte A, Crinò L, Altini M. How to discriminate non-small cell lung cancer (NSCLC) cases from an Italian administrative database? A retrospective, secondary data use study for evaluating a novel algorithm performance. BMJ Open 2021; 11:e048188. [PMID: 34561258 PMCID: PMC8475132 DOI: 10.1136/bmjopen-2020-048188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES To evaluate an algorithm developed for identifying non-small cell lung cancer (NSCLC) candidates among patients with lung cancer with a diagnosis International Classification of Diseases: ninth revision (ICD-9) 162.x code in administrative databases. Algorithm could then be applied for identifying the NSCLC population in order to assess the appropriateness and quality of care of the NSCLC care pathway. DESIGN Algorithm discrimination capacity to select both NSCLC or non-NSCLC was carried out on a sample for which electronic health record (EHR) diagnosis was available. A bivariate frequency distribution and other measures were used to evaluate algorithm's performances. Associations between possible factors potentially affecting algorithm accuracy were investigated. SETTING Administrative databases used in a specific geographical area of Emilia-Romagna region, Italy. PARTICIPANTS Algorithm was carried out on patients aged >18 years, with a lung cancer diagnosis from January to December 2017 and resident in Emilia-Romagna region who have been hospitalised at IRST or in one of the hospitals placed in the Forlì-Cesena area and for which EHR diagnosis data were available. OUTCOME MEASURES Overall accuracy, positive (PPV) and negative (NPV) predictive values, sensitivity and specificity, positive and negative likelihood ratios and diagnostic OR were calculated. RESULTS A total of 430 patients were identified as lung cancer cases based on ICD-9 diagnosis. Focusing on the total incident cases (n=314), the algorithm had an overall accuracy of 82.8% with a sensitivity of 88.8%. The analysis confirmed a high level of PPV (90.2%), but lower specificity (53.7%) and NPV (50%). Higher length of stay seemed to be associated with a correct classification. Hospitalisation regimen and a supply of antiblastic therapy seemed to increase the level of PPV. CONCLUSION The algorithm demonstrated a strong validity for identifying NSCLC among patients with lung cancer in hospital administrative databases and can be used to investigate the quality of cancer care for this population. TRIAL REGISTRATION NUMBER NCT04676321.
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Affiliation(s)
- William Balzi
- Outcome Research, Healthcare Administration, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) " Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Andrea Roncadori
- Outcome Research, Healthcare Administration, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) " Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Valentina Danesi
- Outcome Research, Healthcare Administration, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) " Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Ilaria Massa
- Outcome Research, Healthcare Administration, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) " Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Silvia Manunta
- Outcome Research, Healthcare Administration, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) " Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Nicola Gentili
- Outcome Research, Healthcare Administration, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) " Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Angelo Delmonte
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Lucio Crinò
- Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, Emilia-Romagna, Italy
| | - Mattia Altini
- Outcome Research, Healthcare Administration, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) " Dino Amadori", Meldola, Emilia-Romagna, Italy
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8
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Pescatello LS, Wu Y, Gao S, Livingston J, Sheppard BB, Chen MH. Do the combined blood pressure effects of exercise and antihypertensive medications add up to the sum of their parts? A systematic meta-review. BMJ Open Sport Exerc Med 2021; 7:e000895. [PMID: 34192008 PMCID: PMC7818845 DOI: 10.1136/bmjsem-2020-000895] [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] [Accepted: 12/30/2020] [Indexed: 01/08/2023] Open
Abstract
Objective To compare the blood pressure (BP) effects of exercise alone (EXalone), medication alone (MEDSalone) and combined (EX+MEDScombined) among adults with hypertension. Data sources PubMed, Scopus, Cumulative Index to Nursing and Allied Health Literature, SPORTDiscus and the Cochrane Library. Eligibility criteria Randomised controlled trails (RCTs) or meta-analyses (MAs) of controlled trials that: (1) involved healthy adults>18 year with hypertension; (2) investigated exercise and BP; (3) reported preintervention and postintervention BP and (4) were published in English. RCTs had an EX+MEDScombined arm; and an EXalone arm and/or an MEDSalone arm; and MAs performed moderator analyses. Design A systematic network MA and meta-review with the evidence graded using the Physical Activity Guidelines for Americans Advisory Committee system. Outcome The BP response for EXalone, MEDSalone and EX+MEDScombined and compared with each other. Results Twelve RCTs qualified with 342 subjects (60% women) who were mostly physically inactive, middle-aged to older adults. There were 13 qualifying MAs with 28 468 participants (~50% women) who were mostly Caucasian or Asian. Most RCTs were aerobic (83.3%), while the MAs involved traditional (46%) and alternative (54%) exercise types. Strong evidence demonstrates EXalone, MEDSalone and EX+MEDScombined reduce BP and EX+MEDScombined elicit BP reductions less than the sum of their parts. Strong evidence indicates EX+MEDScombined potentiate the BP effects of MEDSalone. Although the evidence is stronger for alternative than traditional types of exercise, EXaloneelicits greater BP reductions than MEDSalone. Conclusions The combined BP effects of exercise and medications are not additive or synergistic, but when combined they bolster the antihypertensive effects of MEDSalone. PROSPERO registration number The protocol is registered at PROSPERO CRD42020181754.
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Affiliation(s)
- Linda S Pescatello
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA
| | - Yin Wu
- Department of Kinesiology, University of Connecticut, Storrs, Connecticut, USA
| | - Simiao Gao
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
| | | | | | - Ming-Hui Chen
- Department of Statistics, University of Connecticut, Storrs, Connecticut, USA
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Dieu A, Huynen P, Lavand'homme P, Beloeil H, Freys SM, Pogatzki-Zahn EM, Joshi GP, Van de Velde M. Pain management after open liver resection: Procedure-Specific Postoperative Pain Management (PROSPECT) recommendations. Reg Anesth Pain Med 2021; 46:433-445. [PMID: 33436442 PMCID: PMC8070600 DOI: 10.1136/rapm-2020-101933] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/20/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023]
Abstract
Background and objectives Effective pain control improves postoperative rehabilitation and enhances recovery. The aim of this review was to evaluate the available evidence and to develop recommendations for optimal pain management after open liver resection using Procedure-Specific Postoperative Pain Management (PROSPECT) methodology. Strategy and selection criteria Randomized controlled trials (RCTs) published in the English language from January 2010 to October 2019 assessing pain after liver resection using analgesic, anesthetic or surgical interventions were identified from MEDLINE, Embase and Cochrane databases. Results Of 121 eligible studies identified, 31 RCTs and 3 systematic reviews met the inclusion criteria. Preoperative and intraoperative interventions that improved postoperative pain relief were non-steroidal anti-inflammatory drugs, continuous thoracic epidural analgesia, and subcostal transversus abdominis plane (TAP) blocks. Limited procedure-specific evidence was found for intravenous dexmedetomidine, intravenous magnesium, intrathecal morphine, quadratus lumborum blocks, paravertebral nerve blocks, continuous local anesthetic wound infiltration and postoperative interpleural local anesthesia. No evidence was found for intravenous lidocaine, ketamine, dexamethasone and gabapentinoids. Conclusions Based on the results of this review, we suggest an analgesic strategy for open liver resection, including acetaminophen and non-steroidal anti-inflammatory drugs, combined with thoracic epidural analgesia or bilateral oblique subcostal TAP blocks. Systemic opioids should be considered as rescue analgesics. Further high-quality RCTs are needed to confirm and clarify the efficacy of the recommended analgesic regimen in the context of an enhanced recovery program.
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Affiliation(s)
- Audrey Dieu
- Department of Anesthesiology, Cliniques universitaires Saint-Luc, Bruxelles, Belgium
| | - Philippe Huynen
- Department of Cardiovascular Sciences, KULeuven, Leuven, Belgium
| | - Patricia Lavand'homme
- Department of Anesthesiology, Cliniques universitaires Saint-Luc, Bruxelles, Belgium
| | - Hélène Beloeil
- Anesthesia and Intensive Care Department, University of Rennes, CHU Rennes, Inserm, INRA, CIC 1414 NuMeCan, Rennes, France
| | - Stephan M Freys
- Department of Surgery, DIAKO Ev. Diakonie-Krankenhaus, Bremen, Germany
| | - Esther M Pogatzki-Zahn
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Münster, Münster, Germany
| | - Girish P Joshi
- Department of Anesthesiology and Pain Management, University of Texas, Southwestern Medical Center, Dallas, Texas, USA
| | - Marc Van de Velde
- Department of Cardiovascular Sciences, KULeuven, Leuven, Belgium.,Department of Anesthesiology, UZ Leuven, Leuven, Belgium
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Dorward J, Msimango L, Gibbs A, Shozi H, Tonkin-Crine S, Hayward G, Butler CC, Ngobese H, Drain PK, Garrett N. Understanding how community antiretroviral delivery influences engagement in HIV care: a qualitative assessment of the Centralised Chronic Medication Dispensing and Distribution programme in South Africa. BMJ Open 2020; 10:e035412. [PMID: 32414827 PMCID: PMC7245406 DOI: 10.1136/bmjopen-2019-035412] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Providing antiretroviral therapy (ART) for millions of people living with HIV requires efficient, client-centred models of differentiated ART delivery. In South Africa, the Centralised Chronic Medication Dispensing and Distribution (CCMDD) programme allows over 1 million people to collect chronic medication, including ART, from community pick-up points. We aimed to explore how CCMDD influences engagement in HIV care. METHODS We performed in-depth interviews and focus group discussions with clients receiving ART and healthcare workers in Durban, South Africa. We analysed transcripts using deductive thematic analysis, with a framework informed by 'theories of practice', which highlights the materialities, competencies, meanings and other life practices that underpin clients' engagement in HIV care. RESULTS Between March 2018 to August 2018 we undertook 25 interviews and four focus groups with a total of 55 clients, and interviewed eight healthcare workers. The material challenges of standard clinic-based ART provision included long waiting times, poor confidentiality and restricted opening hours, which discouraged clients from engagement. In contrast, CCMDD allowed quicker and more convenient ART collection in the community. This required the development of new competencies around accessing care, and helped change the meanings associated with HIV, by normalising treatment collection. CCMDD was seen as a reward by clients for taking ART well, and helped reduce disruption to other life practices such as employment. At private pharmacies, some clients reported receiving inferior care compared with paying customers, and some worried about inadvertently revealing their HIV status. Clients and healthcare workers had to negotiate problems with CCMDD implementation, including some pharmacies reaching capacity or only allowing ART collection at restricted times. CONCLUSIONS In South Africa, CCMDD overcame material barriers to attending clinics, changed the meanings associated with collecting ART and was less disruptive to other social practices in clients' lives. Expansion of community-based ART delivery programmes may help to facilitate engagement in HIV care. TRIAL REGISTRATION NUMBER STREAM study clinical trial registration: NCT03066128, registered February 2017.
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Affiliation(s)
- Jienchi Dorward
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
| | - Lindani Msimango
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
| | - Andrew Gibbs
- Gender and Health Research Unit, South African Medical Research Council, Pretoria, South Africa
- Centre for Rural Health, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Hlengiwe Shozi
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
| | - Sarah Tonkin-Crine
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
- NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, University of Oxford, Oxford, UK
| | - Gail Hayward
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Christopher C Butler
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Hope Ngobese
- eThekwini Municipality Health Unit, Durban, South Africa
| | - Paul K Drain
- Department of Global Health, Schools of Medicine and Public Health, University of Washington, Seattle, United States
- Department of Medicine, School of Medicine, University of Washington, Seattle, United States
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, United States
| | - Nigel Garrett
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
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Wang Z, Yue YX, Liu ZM, Yang LY, Li H, Li ZJ, Li GX, Wang YB, Tian YD, Kang XT, Liu XJ. Genome-Wide Analysis of the FABP Gene Family in Liver of Chicken (Gallus gallus): Identification,Dynamic Expression Profile, and RegulatoryMechanism. Int J Mol Sci 2019; 20:E5948. [PMID: 31779219 PMCID: PMC6928644 DOI: 10.3390/ijms20235948] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/19/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023] Open
Abstract
The fatty acid-binding protein (FABP) gene family, which encodes a group of fatty acid-trafficking molecules that affect cellular functions, has been studied extensively in mammals. However, little is known about the gene structure, expression profile, and regulatory mechanism of the gene family in chickens. In the present study, bioinformatics-based methods were used to identify the family members and investigate their evolutionary history and features of gene structure. Real-time PCR combined with in vivo and in vitro experiments were used to examine the spatiotemporal expression pattern, and explore the regulatory mechanism of FABP genes. The results show that nine members of the FABP gene family, which branched into two clusters and shared a conserved FATTYACIDBP domain, exist in the genome of chickens. Of these, seven FABP genes, including FABP1, FABP3-7, and FABP10 were abundantly expressed in the liver of hens. The expression levels of FABP1, FABP3, and FABP10 were significantly increased, FABP5 and FABP7 were significantly decreased, and FABP4 and FABP6 remained unchanged in hens at the peak laying stage in comparison to those at the pre-laying stage. Transcription of FABP1 and FABP3 were activated by estrogen via estrogen receptor (ER) α, whilst FABP10 was activated by estrogen via ERβ. Meanwhile, the expression of FABP1 was regulated by peroxisome proliferator activated receptor (PPAR) isoforms, of which tested PPARα and PPARβ agonists significantly inhibited the expression of FABP1, while tested PPARγ agonists significantly increased the expression of FABP1, but downregulated it when the concentration of the PPARγ agonist reached 100 nM. The expression of FABP3 was upregulated via tested PPARβ and PPARγ agonists, and the expression of FABP7 was selectively promoted via PPARγ. The expression of FABP10 was activated by all of the three tested PPAR agonists, but the expression of FABP4-6 was not affected by any of the PPAR agonists. In conclusion, members of the FABP gene family in chickens shared similar functional domains, gene structures, and evolutionary histories with mammalian species, but exhibited varying expression profiles and regulatory mechanisms. The results provide a valuable resource for better understanding the biological functions of individual FABP genes in chickens.
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Affiliation(s)
- Zhang Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
| | - Ya-Xin Yue
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
| | - Zi-Ming Liu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
| | - Li-Yu Yang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
| | - Hong Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Zhuan-Jian Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Guo-Xi Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Yan-Bin Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Ya-Dong Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Xiang-Tao Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
| | - Xiao-Jun Liu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China; (Z.W.); (Y.-X.Y.); (Z.-M.L.); (L.-Y.Y.); (H.L.); (Z.-J.L.); (G.-X.L.); (Y.-B.W.); (Y.-D.T.); (X.-T.K.)
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou 450002, China
- International Joint Research Laboratory for Poultry Breeding of Henan, Zhengzhou 450002, China
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Disubstituted Dithiolethione ACDT Exerts Neuroprotective Effects Against 6-Hydroxydopamine-Induced Oxidative Stress in SH-SY5Y Cells. Neurochem Res 2019; 44:1878-1892. [DOI: 10.1007/s11064-019-02823-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/13/2019] [Accepted: 05/30/2019] [Indexed: 12/20/2022]
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13
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El-Horany HES, Watany MM, Hagag RY, El-Attar SH, Basiouny MA. Expression of LRP1 and CHOP genes associated with peripheral neuropathy in type 2 diabetes mellitus: Correlations with nerve conduction studies. Gene 2019; 702:114-122. [PMID: 30902789 DOI: 10.1016/j.gene.2019.02.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 02/24/2019] [Accepted: 02/28/2019] [Indexed: 12/17/2022]
Abstract
AIM Diabetic peripheral neuropathy (DPN) is a frequent and debilitating complication of diabetes mellitus. The low-density lipoprotein receptor-related protein-1 (LRP-1) is a multifunctional cell surface receptor playing critical roles in lipoprotein metabolism and several cell signaling processes. C/EBP homologous protein (CHOP) is a main conduit to endoplasmic reticulum stress-induced apoptosis. We aimed to investigate LRP1 and CHOP gene expression in peripheral blood cells of type 2 diabetes mellitus (T2DM) subjects to clarify its possible relation to DPN pathogenesis. METHOD The study included 20 non-complicated T2DM subjects, 20 subjects with DPN and 20 healthy controls. Quantitative real time PCR was used to study gene expression. RESULTS There was a significant reduction in LRP1 mRNA expression and a significant increase in CHOP mRNA expression in subjects with DPN compared to non-complicated group and healthy controls. Both LRP1 and CHOP expression levels were inversely correlated, and both showed significant correlation with HbA1c, hyperlipidemia, hs-CRP, and different electrophysiological parameters. Receiver operating characteristics (ROC) analysis suggested that both LRP1 and CHOP mRNA expression and hs-CRP levels had great potential advantages to predict the progression of DPN. CONCLUSION LRP1 and CHOP might be involved in DPN pathogenesis and progression, thus providing opportunities for early detection and treatment.
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Affiliation(s)
| | - Mona Mohamed Watany
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Rasha Youssef Hagag
- Internal Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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Grosso RA, Caldarone PVS, Sánchez MC, Chiabrando GA, Colombo MI, Fader CM. Hemin induces autophagy in a leukemic erythroblast cell line through the LRP1 receptor. Biosci Rep 2019; 39:BSR20181156. [PMID: 30523204 PMCID: PMC6328880 DOI: 10.1042/bsr20181156] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/31/2018] [Accepted: 11/07/2018] [Indexed: 01/04/2023] Open
Abstract
Hemin is an erythropoietic inductor capable of inducing autophagy in erythroid-like cell lines. Low-density lipoprotein receptor-related protein 1 (LRP1) is a transmembrane receptor involved in a wide range of cellular processes, such as proliferation, differentiation, and metabolism. Our aim was to evaluate whether LRP1 is responsible for hemin activity in K562 cells, with the results demonstrating a three-fold increase in LRP1 gene expression levels (P-values <0.001) when assessed by quantitative real-time RT-PCR (qRT-PCR). Moreover, a 70% higher protein amount was observed compared with control condition (P-values <0.01) by Western blot (WB). Time kinetic assays demonstrated a peak in light chain 3 (LC3) II (LC3II) levels after 8 h of hemin stimulation and the localization of LRP1 in the autophagosome structures. Silencing LRP1 by siRNA decreased drastically the hemin-induced autophagy activity by almost 80% compared with control cells (P-values <0.01). Confocal localization and biochemical analysis indicated a significant redistribution of LRP1 from early endosomes and recycling compartments to late endosomes and autophagolysosomes, where the receptor is degraded. We conclude that LRP1 is responsible for hemin-induced autophagy activity in the erythroblastic cell line and that hemin-LRP1 complex activation promotes a self-regulation of the receptor. Our results suggest that hemin, via the LRP1 receptor, favors erythroid maturation by inducing an autophagic response, making it a possible therapeutic candidate to help in the treatment of hematological disorders.
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Affiliation(s)
- Ruben Adrian Grosso
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Paula Virginia Subirada Caldarone
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - María Cecilia Sánchez
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - Gustavo Alberto Chiabrando
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba 5016, Argentina
| | - María Isabel Colombo
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Claudio Marcelo Fader
- Universidad Nacional de Cuyo, Facultad de Odontología, Mendoza, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
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Targeted sensory enrichment interventions protect against behavioral and neuroendocrine consequences of early life stress. Psychoneuroendocrinology 2018; 98:74-85. [PMID: 30121011 DOI: 10.1016/j.psyneuen.2018.07.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/20/2018] [Accepted: 07/29/2018] [Indexed: 12/16/2022]
Abstract
Both basic and clinical research support the use of tactile stimulation to rescue several neurobiobehavioral consequences that follow early life stress. Here, using a translational rodent model of the neonatal intensive care unit (NICU), we tested the individual prophylactic potential of a variety of sensory interventions including tactile (brushing pups with a paint brush to mimic maternal licking), auditory (a simulated lactating rat dam heart beat), and olfactory (a series of aroma therapy scents) stimulation. The NICU model was developed to mimic not only the reduced parental contact that sick infants receive (by isolating rat pups from their litters), but also the nosocomial infections and medical manipulations associated with this experience (by utilizing a dual lipopolysaccharide injection schedule). Each of the neurobiobehavioral consequences observed were dissociable between isolation and inflammation, or required a combined presentation ('two hits') of the neonatal stressors. Sprague-Dawley rats exposed to these early life stressors presented with sex-specific disruptions in both separation-induced ultrasonic vocalization (USV) distress calls (males & females) and juvenile social play USVs (males only). All three sensory enhancement interventions were associated with the rescue of potentiated distress calls while olfactory stimulation was protective of social vocalizations. Female rats exposed to early life stress experienced precocious puberty and shifts in the hypothalamic GnRh axis; sensory enrichment counter-acted the advanced pubertal onset. Animals that underwent the NICU protocol also displayed maturational acceleration in terms of the loss of the rooting reflex in addition to hyperalgesia, a reduced preference for a novel conspecific, blunted basal plasma corticosterone and reduced hippocampal glucocorticoid receptor expression. These alterations closely simulated the clinical effects of early life adversity in terms of disruptions in the hypothalamic pituitary "stress" axis, social communication and engagement, tactile system processing, and accelerated maturation. Moreover, sensory enrichment attenuated many of these behavioral and neurophysiological alterations, and even slowed maturation. Overall, this supports the translatability of our novel rodent model and its potential utility in understanding how brain maturation and quality of early life experiences may interact to shape the integrity of stress and sensory system development. Future work must determine the appropriate modalities and parameters (e.g. patterning, timing) for effective sensory enrichment interventions.
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Govindarajulu M, Pinky PD, Bloemer J, Ghanei N, Suppiramaniam V, Amin R. Signaling Mechanisms of Selective PPAR γ Modulators in Alzheimer's Disease. PPAR Res 2018; 2018:2010675. [PMID: 30420872 PMCID: PMC6215547 DOI: 10.1155/2018/2010675] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/31/2018] [Accepted: 09/13/2018] [Indexed: 01/22/2023] Open
Abstract
Alzheimer's disease (AD) is a chronic neurodegenerative disease characterized by abnormal protein accumulation, synaptic dysfunction, and cognitive impairment. The continuous increase in the incidence of AD with the aged population and mortality rate indicates the urgent need for establishing novel molecular targets for therapeutic potential. Peroxisome proliferator-activated receptor gamma (PPARγ) agonists such as rosiglitazone and pioglitazone reduce amyloid and tau pathologies, inhibit neuroinflammation, and improve memory impairments in several rodent models and in humans with mild-to-moderate AD. However, these agonists display poor blood brain barrier permeability resulting in inadequate bioavailability in the brain and thus requiring high dosing with chronic time frames. Furthermore, these dosing levels are associated with several adverse effects including increased incidence of weight gain, liver abnormalities, and heart failure. Therefore, there is a need for identifying novel compounds which target PPARγ more selectively in the brain and could provide therapeutic benefits without a high incidence of adverse effects. This review focuses on how PPARγ agonists influence various pathologies in AD with emphasis on development of novel selective PPARγ modulators.
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Affiliation(s)
- Manoj Govindarajulu
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
| | - Priyanka D. Pinky
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
| | - Jenna Bloemer
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
| | - Nila Ghanei
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
| | - Vishnu Suppiramaniam
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
- Center for Neuroscience, Auburn University, Auburn, AL, USA
| | - Rajesh Amin
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
- Center for Neuroscience, Auburn University, Auburn, AL, USA
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Actis Dato V, Chiabrando GA. The Role of Low-Density Lipoprotein Receptor-Related Protein 1 in Lipid Metabolism, Glucose Homeostasis and Inflammation. Int J Mol Sci 2018; 19:ijms19061780. [PMID: 29914093 PMCID: PMC6032055 DOI: 10.3390/ijms19061780] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 06/13/2018] [Accepted: 06/13/2018] [Indexed: 12/30/2022] Open
Abstract
Metabolic syndrome (MetS) is a highly prevalent disorder which can be used to identify individuals with a higher risk for cardiovascular disease and type 2 diabetes. This metabolic syndrome is characterized by a combination of physiological, metabolic, and molecular alterations such as insulin resistance, dyslipidemia, and central obesity. The low-density lipoprotein receptor-related protein 1 (LRP1—A member of the LDL receptor family) is an endocytic and signaling receptor that is expressed in several tissues. It is involved in the clearance of chylomicron remnants from circulation, and has been demonstrated to play a key role in the lipid metabolism at the hepatic level. Recent studies have shown that LRP1 is involved in insulin receptor (IR) trafficking and intracellular signaling activity, which have an impact on the regulation of glucose homeostasis in adipocytes, muscle cells, and brain. In addition, LRP1 has the potential to inhibit or sustain inflammation in macrophages, depending on its cellular expression, as well as the presence of particular types of ligands in the extracellular microenvironment. In this review, we summarize existing perspectives and the latest innovations concerning the role of tissue-specific LRP1 in lipoprotein and glucose metabolism, and examine its ability to mediate inflammatory processes related to MetS and atherosclerosis.
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Affiliation(s)
- Virginia Actis Dato
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Córdoba X5000HUA, Argentina.
| | - Gustavo Alberto Chiabrando
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Córdoba X5000HUA, Argentina.
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