99751
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Ramirez DA, Collins KP, Aradi AE, Conger KA, Gustafson DL. Kinetics of Cyclophosphamide Metabolism in Humans, Dogs, Cats, and Mice and Relationship to Cytotoxic Activity and Pharmacokinetics. Drug Metab Dispos 2019; 47:257-268. [PMID: 30567881 PMCID: PMC6939680 DOI: 10.1124/dmd.118.083766] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 12/12/2018] [Indexed: 12/13/2022] Open
Abstract
Cyclophosphamide (CP), a prodrug that is enzymatically converted to the cytotoxic 4-hydroxycyclophosphamide (4OHCP) by hepatic enzymes, is commonly used in both human and veterinary medicine to treat cancers and modulate the immune system. We investigated the metabolism of CP in humans, dogs, cats, and mice using liver microsomes; apparent K M, V max, and intrinsic clearance (V max/K M) parameters were estimated. The interspecies and intraspecies variations in kinetics were vast. Dog microsomes were, on average, 55-fold more efficient than human microsomes, 2.8-fold more efficient than cat microsomes, and 1.2-fold more efficient than mouse microsomes at catalyzing CP bioactivation. These differences translated to cell-based systems. Breast cancer cells exposed to 4OHCP via CP bioactivation by microsomes resulted in a stratification of cytotoxicity that was dependent on the species of microsomes measured by IC50: dog (31.65 μM), mouse (44.95 μM), cat (272.6 μM), and human (1857 μM). The contributions of cytochrome P450s, specifically, CYP2B, CYP2C, and CYP3A, to CP bioactivation were examined: CYP3A inhibition resulted in no change in 4OHCP formation; CYP2B inhibition slightly reduced 4OHCP in humans, cats, and mice; and CYP2C inhibition drastically reduced 4OHCP formation in each species. Semiphysiologic modeling of CP metabolism using scaled metabolic parameters resulted in simulated data that closely matched published pharmacokinetic profiles, determined by noncompartmental analysis. The results highlight differential CP metabolism delineated by species and demonstrate the importance of metabolism on CP clearance.
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Affiliation(s)
- Dominique A Ramirez
- Department of Clinical Sciences (D.A.R., A.E.A., D.L.G.) and School of Biomedical Engineering (K.P.C., K.A.C., D.L.G.), Colorado State University, Fort Collins, and University of Colorado Cancer Center, Aurora (D.L.G.), Colorado
| | - Keagan P Collins
- Department of Clinical Sciences (D.A.R., A.E.A., D.L.G.) and School of Biomedical Engineering (K.P.C., K.A.C., D.L.G.), Colorado State University, Fort Collins, and University of Colorado Cancer Center, Aurora (D.L.G.), Colorado
| | - Allister E Aradi
- Department of Clinical Sciences (D.A.R., A.E.A., D.L.G.) and School of Biomedical Engineering (K.P.C., K.A.C., D.L.G.), Colorado State University, Fort Collins, and University of Colorado Cancer Center, Aurora (D.L.G.), Colorado
| | - Katherine A Conger
- Department of Clinical Sciences (D.A.R., A.E.A., D.L.G.) and School of Biomedical Engineering (K.P.C., K.A.C., D.L.G.), Colorado State University, Fort Collins, and University of Colorado Cancer Center, Aurora (D.L.G.), Colorado
| | - Daniel L Gustafson
- Department of Clinical Sciences (D.A.R., A.E.A., D.L.G.) and School of Biomedical Engineering (K.P.C., K.A.C., D.L.G.), Colorado State University, Fort Collins, and University of Colorado Cancer Center, Aurora (D.L.G.), Colorado
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99752
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Katayama M, Wiklander OPB, Fritz T, Caidahl K, El-Andaloussi S, Zierath JR, Krook A. Circulating Exosomal miR-20b-5p Is Elevated in Type 2 Diabetes and Could Impair Insulin Action in Human Skeletal Muscle. Diabetes 2019; 68:515-526. [PMID: 30552111 DOI: 10.2337/db18-0470] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 12/01/2018] [Indexed: 11/13/2022]
Abstract
miRNAs are noncoding RNAs representing an important class of gene expression modulators. Extracellular circulating miRNAs are both candidate biomarkers for disease pathogenesis and mediators of cell-to-cell communication. We examined the miRNA expression profile of total serum and serum-derived exosome-enriched extracellular vesicles in people with normal glucose tolerance or type 2 diabetes. In contrast to total serum miRNA, which did not reveal any differences in miRNA expression, we identified differentially abundant miRNAs in patients with type 2 diabetes using miRNA expression profiles of exosome RNA (exoRNA). To validate the role of these differentially abundant miRNAs on glucose metabolism, we transfected miR-20b-5p, a highly abundant exoRNA in patients with type 2 diabetes, into primary human skeletal muscle cells. miR-20b-5p overexpression increased basal glycogen synthesis in human skeletal muscle cells. We identified AKTIP and STAT3 as miR-20b-5p targets. miR-20b-5p overexpression reduced AKTIP abundance and insulin-stimulated glycogen accumulation. In conclusion, exosome-derived extracellular miR-20b-5p is a circulating biomarker associated with type 2 diabetes that plays an intracellular role in modulating insulin-stimulated glucose metabolism via AKT signaling.
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Affiliation(s)
- Mutsumi Katayama
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | | | - Tomas Fritz
- Department of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
| | - Kenneth Caidahl
- Department of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Samir El-Andaloussi
- Department of Laboratory Medicine, Karolinska Institute, Huddinge, Sweden
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, U.K
| | - Juleen R Zierath
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Anna Krook
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
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99753
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Ershov PV, Yablokov ЕO, Florinskaya AV, Mezentsev YV, Kaluzhskiy LА, Tumilovich AM, Gilep АА, Usanov SA, Ivanov АS. SPR-Based study of affinity of cytochrome P450s / redox partners interactions modulated by steroidal substrates. J Steroid Biochem Mol Biol 2019; 187:124-129. [PMID: 30468857 DOI: 10.1016/j.jsbmb.2018.11.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/26/2018] [Accepted: 11/19/2018] [Indexed: 11/29/2022]
Abstract
The goal of this work was to test the hypothesis that the affinity of protein-protein interactions in the cytochrome P450-dependent monooxygenase system is modulated by the low-molecular-weight compounds (substrates or inhibitors). The surface plasmon resonance (SPR) based study was carried out using the recombinant protein preparations of three microsomal cytochromes P450 (CYP17A1, CYP21A2, and CYP2C19) and their redox partners: cytochrome b5 (CYB5A), NADPH - cytochrome P450 reductase (CPR), and also iron-sulfur protein adrenodoxin (Adx). As a result, we have revealed some specificity of the influence of the steroid substrates on the binding affinity of CYPs with their redox partners, namely: the lack of effect on CPR/CYPs and Adx/CYP complex formation, and a significant effect on interactions between CYB5A and steroidogenic CYPs. The equilibrium dissociation constant (Kd) value of the CYB5A/CYP17A1 complex decreased by 5 times in the presence of progesterone (P4), which was due to a 10 times increase in the association rate constant (kon). In this case, a twofold increase in the dissociation rate constant (koff) value of CYB5A/CYP17A1 complex formation was observed. It was also demonstrated that the affinity of CYB5A/CYP17A1 interaction increased in the presence of two other steroidal substrates 17α-hydroxyprogesterone and pregnenolone and that effect was comparable with P4. In contrast, only the twofold decrease in the affinity of CYB5A/CYP21A2 interaction in the presence of P4 was caused by a slight increase in the koff value (the kon value of the complex did not change). This indicates a different format of the steroidal substrates effects expressed in a change in the stability of the CYB5A/CYPs complexes. Thus, it was found that P4 modulated the both kinetic and equilibrium constants of CYB5A/CYP17A1 and CYB5/CYP21A2 complex formation and complexes, while not affecting the CYB5A/CYP2C19 interaction (2C19 is the cytochrome P450 isoenzyme possessing broad substrate specificity), thereby indicating a specific influence of steroidal substrates on interactions involving steroidogenic CYPs. Our results are consistent with current understanding of the role of CYB5A as a regulator of cytochrome P450 activity in P450-dependent monooxygenase system.
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Affiliation(s)
- P V Ershov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia.
| | - Е O Yablokov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - A V Florinskaya
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - Yu V Mezentsev
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - L А Kaluzhskiy
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
| | - A M Tumilovich
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, 220141, Minsk, Kuprevicha str. 5/2, Belarus
| | - А А Gilep
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia; Institute of Bioorganic Chemistry National Academy of Science of Belarus, 220141, Minsk, Kuprevicha str. 5/2, Belarus
| | - S A Usanov
- Institute of Bioorganic Chemistry National Academy of Science of Belarus, 220141, Minsk, Kuprevicha str. 5/2, Belarus
| | - А S Ivanov
- Federal State Budgetary Institution "V.N. Orekhovich Research Institute of Biomedical Chemistry", 119121, Moscow, Pogodinskaya str. 10, building 8, Russia
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99754
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Stark T, Ruda-Kucerova J, Iannotti FA, D'Addario C, Di Marco R, Pekarik V, Drazanova E, Piscitelli F, Bari M, Babinska Z, Giurdanella G, Di Bartolomeo M, Salomone S, Sulcova A, Maccarrone M, Wotjak CT, Starcuk Z, Drago F, Mechoulam R, Di Marzo V, Micale V. Peripubertal cannabidiol treatment rescues behavioral and neurochemical abnormalities in the MAM model of schizophrenia. Neuropharmacology 2019; 146:212-221. [DOI: 10.1016/j.neuropharm.2018.11.035] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 11/14/2018] [Accepted: 11/24/2018] [Indexed: 12/12/2022]
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99755
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Abstract
The liver is the central organ involved in lipid metabolism and the gastrointestinal (GI) tract is responsible for nutrient absorption and partitioning. Obesity, dyslipidemia and metabolic disorders are of increasing public health concern worldwide, and novel therapeutics that target both the liver and the GI tract (gut-liver axis) are much needed. In addition to aiding fat digestion, bile acids act as important signaling molecules that regulate lipid, glucose and energy metabolism via activating nuclear receptor, G protein-coupled receptors (GPCRs), Takeda G protein receptor 5 (TGR5) and sphingosine-1-phosphate receptor 2 (S1PR2). Sphingosine-1-phosphate (S1P) is synthesized by two sphingosine kinase isoforms and is a potent signaling molecule that plays a critical role in various diseases such as fatty liver, inflammatory bowel disease (IBD) and colorectal cancer. In this review, we will focus on recent findings related to the role of S1P-mediated signaling pathways in the gut-liver axis.
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Affiliation(s)
- Eric K. Kwong
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA,McGuire VA Medical Center, Richmond, VA, USA
| | - Huiping Zhou
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA,McGuire VA Medical Center, Richmond, VA, USA,Corresponding author. Department of Microbiology and Immunology, Virginia Commonwealth University, McGuire Veterans Affairs Medical Center, Richmond, VA, USA. (H. Zhou)
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99756
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Tajbakhsh A, Gheibi Hayat SM, Butler AE, Sahebkar A. Effect of soluble cleavage products of important receptors/ligands on efferocytosis: Their role in inflammatory, autoimmune and cardiovascular disease. Ageing Res Rev 2019; 50:43-57. [PMID: 30639340 DOI: 10.1016/j.arr.2019.01.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/04/2019] [Accepted: 01/08/2019] [Indexed: 12/17/2022]
Abstract
Efferocytosis, the clearance of apoptotic cells (ACs), is a physiologic, multifaceted and dynamic process and a fundamental mechanism for the preservation of tissue homeostasis by avoiding unwanted inflammation and autoimmune responses through special phagocytic receptors. Defective efferocytosis is associated with several disease states, including cardiovascular disease and impaired immune surveillance, as occurs in cancer and autoimmune disease. A major cause of defective efferocytosis is non-functionality of surface receptors on either the phagocytic cells or the ACs, such as TAM family tyrosine kinase, which turns to a soluble form by cleavage/shedding or alternative splicing. Recently, soluble forms have featured prominently as potential biomarkers, indicative of prognosis and enabling targeted therapy using several commonly employed drugs and inhibitors, such as bleomycin, dexamethasone, statins and some matrix metalloproteinase inhibitors such as TAPI-1 and BB3103. Importantly, to design drug carriers with enhanced circulatory durability, the adaptation of soluble forms of physiological receptors/ligands has been purported. Research has shown that soluble forms are more effective than antibody forms in enabling targeted treatment of certain conditions, such as autoimmune diseases. In this review, we sought to summarize the current knowledge of these soluble products, how they are generated, their interactions, roles, and their potential use as biomarkers in prognosis and treatment related to inflammatory, cardiovascular, and autoimmune diseases.
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Affiliation(s)
- Amir Tajbakhsh
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Alexandra E Butler
- Diabetes Research Center, Qatar Biomedical Research Institute, Doha, Qatar
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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99757
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Mistry RK, Brewer AC. Redox-Dependent Regulation of Sulfur Metabolism in Biomolecules: Implications for Cardiovascular Health. Antioxid Redox Signal 2019; 30:972-991. [PMID: 28661184 DOI: 10.1089/ars.2017.7224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
SIGNIFICANCE Sulfur-containing amino acids are integral to the molecular mechanisms that underlie many aspects of cellular function and homeostasis, facilitated by reversible changes in the oxidation states of sulfur atoms. Sulfur-containing amino acids are metabolically linked by interacting pathways that impact the one-carbon metabolic cycle and generation of methyl groups, the folate cycle, and maintenance of the major cellular redox buffer; glutathione. Dysregulation of these pathways is associated with diverse pathologies, notably of the cardiovascular (CV) system, which are typically characterized by inappropriate plasma levels of sulfur-containing amino acids. Recent Advances: Perhaps not surprisingly, the cellular redox state has emerged as a major regulator of many enzymatic processes within these metabolic cycles. The metabolism of cysteine can also result in the production of hydrogen sulfide (H2S), a signaling molecule whose activity is potentially linked to intracellular levels of both reactive oxygen species (ROS) and molecular oxygen. CRITICAL ISSUES In most cases, the endogenous physiological sources of ROS that might mediate the interlinked metabolic pathways of sulfur-containing biomolecules remain unknown. However, the family of NADPH oxidases, and Nox4 in particular, is emerging as a likely candidate. FUTURE DIRECTIONS This review focuses on the current knowledge of key aspects of sulfur metabolism, which are regulated by redox-based chemical reactions, and the likely intracellular oxidant sources that might mediate this regulation. This knowledge will be important to guide future targeted therapeutic interventions in diverse CV disorders.
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Affiliation(s)
- Rajesh K Mistry
- Department of Cardiology, BHF Centre of Research Excellence, King's College London, London, United Kingdom
| | - Alison C Brewer
- Department of Cardiology, BHF Centre of Research Excellence, King's College London, London, United Kingdom
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99758
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R. Menon V, Ananthapadmanabhan V, Swanson S, Saini S, Sesay F, Yakovlev V, Florens L, DeCaprio JA, P. Washburn M, Dozmorov M, Litovchick L. DYRK1A regulates the recruitment of 53BP1 to the sites of DNA damage in part through interaction with RNF169. Cell Cycle 2019; 18:531-551. [PMID: 30773093 PMCID: PMC6464593 DOI: 10.1080/15384101.2019.1577525] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Human Dual-specificity tyrosine (Y) Regulated Kinase 1A (DYRK1A) is encoded by a dosage dependent gene whereby either trisomy or haploinsufficiency result in developmental abnormalities. However, the function and regulation of this important protein kinase are not fully understood. Here, we report proteomic analysis of DYRK1A in human cells that revealed a novel role of DYRK1A in DNA double-strand breaks (DSBs) repair, mediated in part by its interaction with the ubiquitin-binding protein RNF169 that accumulates at the DSB sites and promotes homologous recombination repair (HRR) by displacing 53BP1, a key mediator of non-homologous end joining (NHEJ). We found that overexpression of active, but not the kinase inactive DYRK1A in U-2 OS cells inhibits accumulation of 53BP1 at the DSB sites in the RNF169-dependent manner. DYRK1A phosphorylates RNF169 at two sites that influence its ability to displace 53BP1 from the DSBs. Although DYRK1A is not required for the recruitment of RNF169 to the DSB sites and 53BP1 displacement, inhibition of DYRK1A or mutation of the DYRK1A phosphorylation sites in RNF169 decreases its ability to block accumulation of 53BP1 at the DSB sites. Interestingly, CRISPR-Cas9 knockout of DYRK1A in human and mouse cells also diminished the 53BP1 DSB recruitment in a manner that did not require RNF169, suggesting that dosage of DYRK1A can influence the DNA repair processes through both RNF169-dependent and independent mechanisms. Human U-2 OS cells devoid of DYRK1A display an increased HRR efficiency and resistance to DNA damage, therefore our findings implicate DYRK1A in the DNA repair processes.
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Affiliation(s)
- Vijay R. Menon
- Division of Hematology, Oncology, and Palliative Care, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Varsha Ananthapadmanabhan
- Division of Hematology, Oncology, and Palliative Care, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Selene Swanson
- Stowers Institute for Medical Research, Kansas City, MO, USA
| | - Siddharth Saini
- Division of Hematology, Oncology, and Palliative Care, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Fatmata Sesay
- Division of Hematology, Oncology, and Palliative Care, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Vasily Yakovlev
- Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA, USA
| | | | - James A. DeCaprio
- Department of Medical Oncology, Dana-Farber Cancer Institute and Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael P. Washburn
- Stowers and Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS, USA
| | - Mikhail Dozmorov
- Department of Biostatistics and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Larisa Litovchick
- Division of Hematology, Oncology, and Palliative Care, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
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99759
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Rosenberg JH, Werner JH, Plitt GD, Noble VV, Spring JT, Stephens BA, Siddique A, Merritt-Genore HL, Moulton MJ, Agrawal DK. Immunopathogenesis and biomarkers of recurrent atrial fibrillation following ablation therapy in patients with preexisting atrial fibrillation. Expert Rev Cardiovasc Ther 2019; 17:193-207. [PMID: 30580643 PMCID: PMC6386629 DOI: 10.1080/14779072.2019.1562902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 12/20/2018] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Recurrent atrial fibrillation (RAF) following ablation therapy occurs in about 50% of patients. The pathogenesis of RAF is unknown, but is believed to be driven by atrial remodeling in the setting of background inflammation. Structural, electrophysiological and mechanical remodeling has been associated with atrial fibrillation (AF). Inflammation and fibrotic remodeling are the major factors perpetuating AF, as mediators released from the atrial tissues and cardiomyocytes due to mechanical and surgical injury could initiate the inflammatory process. In this article, we have critically reviewed the key mediators that may serve as potential biomarkers to predict RAF. Areas covered: Damage associated molecular patterns, heat shock proteins, inflammatory cytokines, non-inflammatory markers, markers of inflammatory cell activity, and markers of collagen deposition and metabolism are evaluated as potential biomarkers with molecular treatment options in RAF. Expert commentary: Establishing biomarkers to predict RAF could be useful in reducing morbidity and mortality. Investigations into the role of DAMPs participating in a sterile immune response may provide greater insight into the pathogenesis of RAF. Markers evaluating immune cell activity, collagen deposition, and levels of heat shock proteins show the greatest promise as potential biomarkers to predict RAF and develop novel therapies.
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Affiliation(s)
- John H Rosenberg
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
| | - John H Werner
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
| | - Gilman D Plitt
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
| | - Victoria V Noble
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
| | - Jordan T Spring
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
| | - Brooke A Stephens
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
| | - Aleem Siddique
- Department of Cardiothoracic Surgery, University of Nebraska Medical Center, Omaha, NE USA
| | | | - Michael J Moulton
- Department of Cardiothoracic Surgery, University of Nebraska Medical Center, Omaha, NE USA
| | - Devendra K Agrawal
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
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99760
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Zhou Z, Peters AM, Wang S, Janda A, Chen J, Zhou P, Arthur E, Kwartler CS, Milewicz DM. Reversal of Aortic Enlargement Induced by Increased Biomechanical Forces Requires AT1R Inhibition in Conjunction With AT2R Activation. Arterioscler Thromb Vasc Biol 2019; 39:459-466. [PMID: 30602301 PMCID: PMC6400319 DOI: 10.1161/atvbaha.118.312158] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Objective- Pharmacological inhibition of the AT1R (angiotensin II type 1 receptor) with losartan can attenuate ascending aortic remodeling induced by transverse aortic constriction (TAC). In this study, we investigated the role of the AT2R (angiotensin II type 2 receptor) and MasR (Mas receptor) in TAC-induced ascending aortic dilation and remodeling. Approach and Results- Wild-type C57BL/6J mice were subjected to sham or TAC surgeries in the presence and absence of various drugs. Aortic diameters were assessed by echocardiography, central blood pressure was measured in the ascending aorta 2 weeks post-operation, and histology and gene expression analyses completed. An angiotensin-converting enzyme inhibitor, captopril, decreased systolic blood pressure to the same level as losartan but did not attenuate aortic dilation, adventitial inflammation, medial collagen deposition, elastin breakage, or Mmp9 (matrix metalloproteinase-9) expression when compared with TAC mice. In contrast, co-administration of captopril with an AT2R agonist, compound 21, attenuated aortic dilation, medial collagen content, elastin breaks, and Mmp9 expression, whereas co-administration of captopril with a MasR agonist (AVE0991) did not reverse aortic dilation and led to aberrant aortic remodeling. An AT2R antagonist, PD123319, reversed the protective effects of losartan in TAC mice. Treatment with compound 21 alone showed no effect on TAC-induced aortic enlargement, blood pressure, elastin breakage, or Mmp9 expression. Conclusions- Our data indicate that when AT1R signaling is blocked, AT2R activation is a key modulator to prevent aortic dilation that occurs with TAC. These data suggest that angiotensin-converting enzyme inhibitor may not be as effective as losartan for slowing aneurysm growth because losartan requires intact AT2R signaling to prevent aortic enlargement.
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Affiliation(s)
- Zhen Zhou
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
- Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China (Z.Z.)
| | - Andrew M Peters
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
| | - Shanzhi Wang
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
| | - Alexandra Janda
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
| | - Jiyuan Chen
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
| | - Ping Zhou
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
| | - Erin Arthur
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
| | - Callie S Kwartler
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
| | - Dianna M Milewicz
- From the Division of Medical Genetics, Department of Internal Medicine, The University of Texas Health Science Center at Houston (Z.Z., A.M.P., S.W., A.J., J.C., P.Z., E.A., C.S.K., D.M.M.)
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99761
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Abstract
Immunotherapy has become a powerful clinical strategy for treating cancer. The number of immunotherapy drug approvals has been increasing, with numerous treatments in clinical and preclinical development. However, a key challenge in the broad implementation of immunotherapies for cancer remains the controlled modulation of the immune system, as these therapeutics have serious adverse effects including autoimmunity and nonspecific inflammation. Understanding how to increase the response rates to various classes of immunotherapy is key to improving efficacy and controlling these adverse effects. Advanced biomaterials and drug delivery systems, such as nanoparticles and the use of T cells to deliver therapies, could effectively harness immunotherapies and improve their potency while reducing toxic side effects. Here, we discuss these research advances, as well as the opportunities and challenges for integrating delivery technologies into cancer immunotherapy, and we critically analyse the outlook for these emerging areas.
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Affiliation(s)
- Rachel S Riley
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Carl H June
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Robert Langer
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Michael J Mitchell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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99762
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Ando Y, Siegler E, Ta HP, Cinay GE, Zhou H, Gorrell KA, Au H, Jarvis BM, Wang P, Shen K. Evaluating CAR-T Cell Therapy in a Hypoxic 3D Tumor Model. Adv Healthc Mater 2019; 8:e1900001. [PMID: 30734529 PMCID: PMC6448565 DOI: 10.1002/adhm.201900001] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 01/18/2019] [Indexed: 12/31/2022]
Abstract
Despite its revolutionary success in hematological malignancies, chimeric antigen receptor T (CAR-T) cell therapy faces disappointing clinical results in solid tumors. The poor efficacy has been partially attributed to the lack of understanding in how CAR-T cells function in a solid tumor microenvironment. Hypoxia plays a critical role in cancer progression and immune editing, which potentially results in solid tumors escaping immunosurveillance and CAR-T cell-mediated cytotoxicity. Mechanistic studies of CAR-T cell biology in a physiological environment has been limited by the complexity of tumor-immune interactions in clinical and animal models, as well as by a lack of reliable in vitro models. A microdevice platform that recapitulates a 3D tumor section with a gradient of oxygen and integrates fluidic channels surrounding the tumor for CAR-T cell delivery is engineered. The design allows for the evaluation of CAR-T cell cytotoxicity and infiltration in the heterogeneous oxygen landscape of in vivo solid tumors at a previously unachievable scale in vitro.
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Affiliation(s)
- Yuta Ando
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Elizabeth Siegler
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Hoang P. Ta
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Gunce E. Cinay
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Hao Zhou
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Kimberly A. Gorrell
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Hannah Au
- Department of Immunology and Pathogenesis, College of Letters and Science, University of California, Berkeley, CA 94720
| | - Bethany M. Jarvis
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
| | - Pin Wang
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
- Mork Family Department of Chemical Engineering and Materials Science, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033
| | - Keyue Shen
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089
- Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033
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99763
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The roles of circular RNAs in human development and diseases. Biomed Pharmacother 2019; 111:198-208. [DOI: 10.1016/j.biopha.2018.12.052] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/10/2018] [Accepted: 12/14/2018] [Indexed: 12/20/2022] Open
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99764
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Santen RJ, Simpson E. History of Estrogen: Its Purification, Structure, Synthesis, Biologic Actions, and Clinical Implications. Endocrinology 2019; 160:605-625. [PMID: 30566601 DOI: 10.1210/en.2018-00529] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 07/20/2018] [Indexed: 12/31/2022]
Abstract
This mini-review summarizes key points from the Clark Sawin Memorial Lecture on the History of Estrogen delivered at Endo 2018 and focuses on the rationales and motivation leading to various discoveries and their clinical applications. During the classical period of antiquity, incisive clinical observations uncovered important findings; however, extensive anatomical dissections to solidify proof were generally lacking. Initiation of the experimental approach followed later, influenced by Claude Bernard's treatise "An Introduction to the Study of Experimental Medicine." With this approach, investigators began to explore the function of the ovaries and their "internal secretions" and, after intensive investigations for several years, purified various estrogens. Clinical therapies for hot flashes, osteoporosis, and dysmenorrhea were quickly developed and, later, methods of hormonal contraception. Sophisticated biochemical methods revealed the mechanisms of estrogen synthesis through the enzyme aromatase and, after discovery of the estrogen receptors, their specific biologic actions. Molecular techniques facilitated understanding of the specific transcriptional and translational events requiring estrogen. This body of knowledge led to methods to prevent and treat hormone-dependent neoplasms as well as a variety of other estrogen-related conditions. More recently, the role of estrogen in men was uncovered by prismatic examples of estrogen deficiency in male patients and by knockout of the estrogen receptor and aromatase in animals. As studies became more extensive, the effects of estrogen on nearly every organ were described. We conclude that the history of estrogen illustrates the role of intellectual reasoning, motivation, and serendipity in advancing knowledge about this important sex steroid.
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Affiliation(s)
- Richard J Santen
- Division of Endocrinology and Metabolism, University of Virginia, Charlottesville, Virginia
| | - Evan Simpson
- Hudson Institute of Medical Research, Clayton, Victoria, Australia
- Centre for Reproductive Health, Queen's Medical Research Institute, University of Edinburgh Medical School, Edinburgh, United Kingdom
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99765
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Dissociation between hypothermia and neurotoxicity caused by mephedrone and methcathinone in TPH2 knockout mice. Psychopharmacology (Berl) 2019; 236:1097-1106. [PMID: 30074064 DOI: 10.1007/s00213-018-4991-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 07/30/2018] [Indexed: 01/01/2023]
Abstract
RATIONALE Mephedrone is a commonly abused constituent of "bath salts" and has many pharmacological effects in common with methamphetamine. Despite their structural similarity, mephedrone differs significantly from methamphetamine in its effects on core body temperature and dopamine nerve endings. The reasons for these differences remain unclear. OBJECTIVES Mephedrone elicits a transient hypothermia which may provide intrinsic neuroprotection against methamphetamine-like toxicity to dopamine nerve endings. Furthermore, evidence in the literature suggests that this hypothermia is mediated by serotonin. By utilizing transgenic mice devoid of brain serotonin, we determined the contribution of this neurotransmitter to changes in core body temperature as well as its possible role in protecting against neurotoxicity. The effects of methcathinone and 4-methyl-methamphetamine, two structural analogs of mephedrone and methamphetamine, were also evaluated in these mice. RESULTS The hypothermia induced by mephedrone and methcathinone in wild-type mice was not observed in mice lacking brain serotonin. Despite preventing drug-induced hypothermia, the lack of serotonin did not alter the neurotoxic profiles of the test drugs. CONCLUSIONS Serotonin is a key mediator of pharmacological hypothermia induced by mephedrone and methcathinone, but these body temperature effects do not contribute to dopamine nerve ending damage observed in mice following treatment with mephedrone, methcathinone or 4-methyl-methamphetamine. Thus, the key component of methamphetamine neurotoxicity lacking in mephedrone remains to be elucidated.
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99766
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López-Ozuna VM, Hachim IY, Hachim MY, Lebrun JJ, Ali S. Prolactin modulates TNBC aggressive phenotype limiting tumorigenesis. Endocr Relat Cancer 2019; 26:321-337. [PMID: 30640712 DOI: 10.1530/erc-18-0523] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 01/14/2019] [Indexed: 12/21/2022]
Abstract
Triple-negative breast cancer (TNBC) accounts for ~20% of all breast cancer cases. The management of TNBC represents a challenge due to its aggressive phenotype, heterogeneity and lack of targeted therapy. Loss of cell differentiation and enrichment with breast cancer stem-like cells (BCSC) are features of TNBC contributing to its aggressive nature. Here, we found that treatment of TNBC cells with PRL significantly depletes the highly tumorigenic BCSC subpopulations CD44+/CD24- and ALDH+ and differentiates them to the least tumorigenic CD44-/CD24- and ALDH- phenotype with limited tumorsphere formation and self-renewal capacities. Importantly, we found PRL to induce a heterochromatin phenotype marked by histone H3 lysine 9 trimethylation (H3K9me3) and accompanied by ultra-structural cellular architecture associated with differentiation and senescence rendering the cells refractory to growth signals. Crucially, we found PRL to mediate these effects in vivo in a pre-clinical animal xenograft of TNBC controlling tumor growth. These results reveal that the lactogenic hormone PRL may exert its anti-tumorigenic effects on TNBC through cellular reprogramming indicative of differentiation resulting in the depletion of BCSCs and restricting tumorigenesis.
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Affiliation(s)
- Vanessa M López-Ozuna
- Department of Medicine, Cancer Research Program, McGill University Health Centre, McGill University, Montreal, Québec, Canada
| | - Ibrahim Y Hachim
- Department of Medicine, Cancer Research Program, McGill University Health Centre, McGill University, Montreal, Québec, Canada
| | - Mahmood Y Hachim
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Jean-Jacques Lebrun
- Department of Medicine, Cancer Research Program, McGill University Health Centre, McGill University, Montreal, Québec, Canada
| | - Suhad Ali
- Department of Medicine, Cancer Research Program, McGill University Health Centre, McGill University, Montreal, Québec, Canada
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99767
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Synthesis of N-benzyl substituted 1,4-imino-l-lyxitols with a basic functional group as selective inhibitors of Golgi α-mannosidase IIb. Bioorg Chem 2019; 83:424-431. [DOI: 10.1016/j.bioorg.2018.10.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/23/2018] [Accepted: 10/29/2018] [Indexed: 12/17/2022]
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99768
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Sun JF, Xu YJ, Kong XH, Su Y, Wang ZY. Fenamates inhibit human sodium channel Nav1.7 and Nav1.8. Neurosci Lett 2019; 696:67-73. [DOI: 10.1016/j.neulet.2018.12.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/06/2018] [Accepted: 12/04/2018] [Indexed: 11/27/2022]
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99769
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Babashamsi MM, Koukhaloo SZ, Halalkhor S, Salimi A, Babashamsi M. ABCA1 and metabolic syndrome; a review of the ABCA1 role in HDL-VLDL production, insulin-glucose homeostasis, inflammation and obesity. Diabetes Metab Syndr 2019; 13:1529-1534. [PMID: 31336517 DOI: 10.1016/j.dsx.2019.03.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 03/05/2019] [Indexed: 12/12/2022]
Abstract
ATP-binding cassette transporter A1 (ABCA1) is an integral cell-membrane protein that mediates the rate-limiting step of high density lipoprotein (HDL) biogenesis and suppression of inflammation by triggering a number of signaling pathways via interacting with an apolipoprotein acceptor. The hepatic ABCA1 is involved in regulation of very low density lipoprotein (VLDL) production by affecting the apolipoprotein B trafficking and lipidation of VLDL particles. This protein is involved in protecting the function of pancreatic β-cells and insulin secretion by cholesterol homeostasis. Adipose tissue lipolysis is associated with ABCA1 activity. This transporter is involved in controlling obesity and insulin sensitivity by regulating triglyceride (TG) lipolysis and influencing on adiponectin, visfatin, leptin, and GLUT4 genes expression. The ABCA1 of skeletal muscle cells play a role in increasing the glucose uptake by enhancing the Akt phosphorylation and transferring GLUT4 to the plasma membrane. Abnormal status of ABCA1-regulated phenotypes is observed in metabolic syndrome. This syndrome is associated with the occurrence of many diseases. This review is a summary of the role of ABCA1 in HDL and VLDL production, homeostasis of insulin and glucose, suppression of inflammation and obesity controlling to provide a better insight into the association of this protein with metabolic syndrome.
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Affiliation(s)
| | | | - Sohrab Halalkhor
- Department of Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Ali Salimi
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
| | - Mohammad Babashamsi
- Monoclonal Antibody Research Center, Avicenna Research Institute, ACECR, Tehran, Iran.
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99770
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Ambrose T, Simmons A. Cannabis, Cannabinoids, and the Endocannabinoid System-Is there Therapeutic Potential for Inflammatory Bowel Disease? J Crohns Colitis 2019; 13:525-535. [PMID: 30418525 PMCID: PMC6441301 DOI: 10.1093/ecco-jcc/jjy185] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cannabis sativa and its extracts have been used for centuries, both medicinally and recreationally. There is accumulating evidence that exogenous cannabis and related cannabinoids improve symptoms associated with inflammatory bowel disease [IBD], such as pain, loss of appetite, and diarrhoea. In vivo, exocannabinoids have been demonstrated to improve colitis, mainly in chemical models. Exocannabinoids signal through the endocannabinoid system, an increasingly understood network of endogenous lipid ligands and their receptors, together with a number of synthetic and degradative enzymes and the resulting products. Modulating the endocannabinoid system using pharmacological receptor agonists, genetic knockout models, or inhibition of degradative enzymes have largely shown improvements in colitis in vivo. Despite these promising experimental results, this has not translated into meaningful benefits for human IBD in the few clinical trials which have been conducted to date, the largest study being limited by poor medication tolerance due to the Δ9-tetrahydrocannabinol component. This review article synthesises the current literature surrounding the modulation of the endocannabinoid system and administration of exocannabinoids in experimental and human IBD. Findings of clinical surveys and studies of cannabis use in IBD are summarised. Discrepancies in the literature are highlighted together with identifying novel areas of interest.
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Affiliation(s)
- Tim Ambrose
- Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK,MRC Human Immunology Unit, John Radcliffe Hospital, Oxford, UK,Corresponding author: Dr Tim Ambrose, BSc (Hons), MBChB, MRCP (UK) (Gastroenterology), c/o Prof. Alison Simmons, MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Headley Way, Oxford OX3 9DS, UK. Tel.: 01865 222628;
| | - Alison Simmons
- Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK,MRC Human Immunology Unit, John Radcliffe Hospital, Oxford, UK
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99771
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Marckel JA, Wetzel HN, Amlal S, Amlal H, Norman AB. A Recombinant Humanized Anticocaine Monoclonal Antibody Alters the Urinary Clearance of Cocaine and Its Metabolites in Rats. Drug Metab Dispos 2019; 47:184-188. [PMID: 30578276 PMCID: PMC6367686 DOI: 10.1124/dmd.118.083857] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 12/13/2018] [Indexed: 01/09/2023] Open
Abstract
A recombinant humanized anticocaine monoclonal antibody, h2E2, has shown potential in the preclinical phases for the treatment of cocaine abuse. The standard tests for cocaine usage are the detection of benzoylecgonine (BE) and cocaine in the urine. This includes workplace drug screens as well as in clinical trials for potential treatments of cocaine abuse. By sequestering cocaine into the plasma compartment, h2E2 prevents cocaine from entering the brain. Due to the altered disposition of cocaine in the presence of h2E2, we investigated the effects of h2E2 on cocaine and metabolite levels in the urine of rats to clarify the use of BE as an endpoint measurement for effectiveness in future clinical trials. The urine concentrations of cocaine and metabolites were considerably altered in the presence of h2E2. After a single injection of h2E2 (120 mg/kg) and cocaine hydrochloride (0.56 mg/kg), the concentration of cocaine and BE excreted into the urine of rats decreased by 92% and 91%, respectively, from vehicle controls. Due to the significant decrease in urinary excretion, BE is not an appropriate indicator of cocaine usage in the presence of h2E2. Another endpoint measurement must be selected for the measurement of cocaine usage in the upcoming clinical trials of h2E2. In contrast to the effects on cocaine and BE urinary excretion, there was a 3-fold increase in ecgonine methyl ester (EME) in the presence of h2E2. Therefore, we conclude that EME is a more appropriate measurement of cocaine intake in the presence of h2E2.
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Affiliation(s)
- Jordan A Marckel
- Departments of Pharmacology and Systems Physiology (J.A.M., H.N.W., A.B.N.) and Internal Medicine, Division of Nephrology and Hypertension (S.A., H.A.), College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Hanna N Wetzel
- Departments of Pharmacology and Systems Physiology (J.A.M., H.N.W., A.B.N.) and Internal Medicine, Division of Nephrology and Hypertension (S.A., H.A.), College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Sihame Amlal
- Departments of Pharmacology and Systems Physiology (J.A.M., H.N.W., A.B.N.) and Internal Medicine, Division of Nephrology and Hypertension (S.A., H.A.), College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Hassane Amlal
- Departments of Pharmacology and Systems Physiology (J.A.M., H.N.W., A.B.N.) and Internal Medicine, Division of Nephrology and Hypertension (S.A., H.A.), College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Andrew B Norman
- Departments of Pharmacology and Systems Physiology (J.A.M., H.N.W., A.B.N.) and Internal Medicine, Division of Nephrology and Hypertension (S.A., H.A.), College of Medicine, University of Cincinnati, Cincinnati, Ohio
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99772
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Dumlu FA, Aydin T, Odabasoglu F, Berktas OA, Kutlu Z, Erol HS, Halici MB, Cadirci E, Cakir A. Anti-inflammatory and antioxidant properties of jervine, a sterodial alkaloid from rhizomes of Veratrum album. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 55:191-199. [PMID: 30668429 DOI: 10.1016/j.phymed.2018.06.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/05/2018] [Accepted: 06/19/2018] [Indexed: 05/11/2023]
Abstract
BACKGROUND Veratrum, hellebore is an important plant species of the Liliaceae family and jervine is the characteristic steroidal alkaloid constituent of Veratrum album. PURPOSE In the current study, anti-inflammatory and antioxidant effects of jervine isolated from NH4OH-benzene extract of V. album rhizomes were investigated on CAR induced paw edema in rats. METHODS/STUDY DESIGN In inflammatory study, 50, 100, 200 and 400 mg/kg doses of jervine, 25 mg/kg doses of DIC and IND were orally administered, and the volume of the foots were measured up to their knee arthrosis by plethismometer. After one hour of the oral administration of the all treatments, 0.1 ml of CAR solution (1%) was injected into the foot of the all rat groups and the volume of the foots were measured during 5 h after CAR injection. GPx, SOD, GR, MPO, CAT enzymes activities and GSH, LPO levels of the supernatants of paw homogenates and inflammation biomarkers such as TNF-α and IL-1β in the rats serums were also estimated. RESULTS According to the present results, jervine exerted 50.4-73.5% anti-inflammatory effects in carrageenan induced paw edema. Inflammation biomarkers such as TNF-α, IL-1β and MPO that increased by CAR injection were suppressed by the administrations of all doses of jervine, IND and DIC. In all paw tissues, LPO levels as indicator of oxidative tissue damage were found to be high in CAR-treated group and it was found to be decreased in all doses of jervine. CONCLUSION Jervine, DIC and IND reduced the negative effects of CAR due to increasing effects on the SOD, CAT, GSH, GPx and GR antioxidants.
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Affiliation(s)
- Fadime Atalay Dumlu
- Department of Biochemistry, Faculty of Medicine, Kafkas University, 36100 Kars, Turkey
| | - Tuba Aydin
- Department of Pharmacognosy, Faculty of Pharmacy, Agri Ibrahim Cecen University, 04100 Agri, Turkey
| | - Fehmi Odabasoglu
- Department of Biochemistry, Faculty of Medicine, Kafkas University, 36100 Kars, Turkey
| | - Ozlem Aydin Berktas
- Department of Biochemistry, Faculty of Health Sciences, Giresun University, 28200 Giresun, Turkey
| | - Zerrin Kutlu
- Department of Biochemistry, Faculty of Pharmacy, Ataturk University, 25100 Erzurum, Turkey
| | - Huseyin Serkan Erol
- Department of Biochemistry, Faculty of Veterinary Science, Ataturk University, 25100 Erzurum, Turkey
| | - Mesut B Halici
- Department of Biochemistry, Faculty of Veterinary Science, Ataturk University, 25100 Erzurum, Turkey
| | - Elif Cadirci
- Department of Pharmacology, Faculty of Medicine, Ataturk University, 25100 Erzurum, Turkey
| | - Ahmet Cakir
- Department of Chemistry, Faculty of Science and Letters, Kilis 7 Aralik University, 79000 Kilis, Turkey.
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99773
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Wang L, Li X, Chao Z, Zhong T, Guo J, Wang Y, Li L, Zhang H. Transcriptional Regulation of NAMPT Gene by Glycogen Synthase Kinase 3β in Goat Adipocytes. DNA Cell Biol 2019; 38:229-235. [DOI: 10.1089/dna.2018.4499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Linjie Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P.R. China
| | - Xueying Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P.R. China
| | - Zhe Chao
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou, P.R. China
| | - Tao Zhong
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P.R. China
| | - Jiazhong Guo
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P.R. China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P.R. China
| | - Li Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P.R. China
| | - Hongping Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, P.R. China
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99774
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El-Demerdash FM, Jebur AB, Nasr HM, Hamid HM. Modulatory effect of Turnera diffusa against testicular toxicity induced by fenitrothion and/or hexavalent chromium in rats. ENVIRONMENTAL TOXICOLOGY 2019; 34:330-339. [PMID: 30578656 DOI: 10.1002/tox.22688] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 11/10/2018] [Accepted: 11/18/2018] [Indexed: 05/27/2023]
Abstract
Oxidative stress and increased production of reactive oxygen species have been implicated in pesticides and heavy metals toxicity. The objective of this study was to investigate the efficacy of Turnera diffusa Willd (damiana) on counteracting fenitrothion (FNT) and/or potassium dichromate (CrVI)-induced testicular toxicity and oxidative injury in rats. FNT and/or CrVI intoxicated animals revealed a significant increase in thiobarbituric acid reactive substances and hydrogen peroxide levels. While, reduced glutathione and protein content, as well as antioxidant enzymes, phosphatases, and aminotransferases activities, were significantly decreased. In addition, significant changes in testosterone and follicle-stimulating hormone levels were detected. Furthermore, histological and immunohistochemical alterations were observed in rat testes and this supported the observed biochemical changes. On the other hand, rats treated with damiana alone decreased lipid peroxidation and increased most of the examined parameters. Moreover, damiana pretreatment to FNT and/or CrVI-intoxicated rats showed significant improvement in lipid peroxidation, enzyme activities, and hormones as compared with their respective treated groups. Conclusively, rats treated with both FNT and/or CrVI showed pronounced hazardous effect especially in their combination group in addition, Turnera diffusa had a potential protective role against FNT and/or CrVI induced testicular toxicity.
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Affiliation(s)
- Fatma M El-Demerdash
- Department of Environmental Studies, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt
| | - Ali B Jebur
- Department of Environmental Studies, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt
| | - Hoda M Nasr
- Department of Pest Control and Environmental Protection, Faculty of Agriculture, Damanhour University, Damanhour, Egypt
| | - Hanin M Hamid
- Department of Environmental Studies, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt
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99775
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Lashari BH, Vallatharasu Y, Kolandra L, Hamid M, Uprety D. Rovalpituzumab Tesirine: A Novel DLL3-Targeting Antibody-Drug Conjugate. Drugs R D 2019; 18:255-258. [PMID: 30232719 PMCID: PMC6277321 DOI: 10.1007/s40268-018-0247-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Small cell lung cancer (SCLC) comprises about 15% of all cases of lung cancer. In recent years, owing to a change in the epidemiology of smoking habits, the incidence of the tumor has decreased; however, it remains a significant challenge to global health. While the tumor has a favorable initial response to chemoradiation, relapse is invariable, and second-line regimens may be intolerable given the severity of side effects. For patients with tumors resistant to second-line regimens, no current standard regimens exist. Rovalpituzumab tesirine is a novel antibody-drug conjugate, targeting delta-like protein 3, fundamental in the downstream cellular signaling for proliferation and apoptosis. This drug is reported to have shown promise in pre-clinical and phase I trials. It appears effective in decreasing tumor burden and is reported to be well tolerated, albeit with a significant adverse effect profile. Currently, it is being studied as part of initial and subsequent line chemotherapeutic regimens; it remains to be seen if this is a viable option in the treatment of SCLC. This may add to the agents that can be used against SCLC, and help improve outcomes.
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Affiliation(s)
- Bilal H Lashari
- Department of Internal Medicine, Abington, Jefferson Health, Abington, PA, USA.
| | - Yazhini Vallatharasu
- Department of Hematology and Medical Oncology, Gundersen Health System, La Crosse, WI, USA
| | - Lakshmi Kolandra
- Department of Internal Medicine, Abington, Jefferson Health, Abington, PA, USA
| | - Mohsin Hamid
- Department of Internal Medicine, Abington, Jefferson Health, Abington, PA, USA
| | - Dipesh Uprety
- Department of Hematology and Medical Oncology, Gundersen Health System, La Crosse, WI, USA
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99776
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Kaiser M, Arvidson R, Zarivach R, Adams ME, Libersat F. Molecular cross-talk in a unique parasitoid manipulation strategy. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2019; 106:64-78. [PMID: 30508629 DOI: 10.1016/j.ibmb.2018.11.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/18/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
Envenomation of cockroach cerebral ganglia by the parasitoid Jewel wasp, Ampulex compressa, induces specific, long-lasting behavioural changes. We hypothesized that this prolonged action results from venom-induced changes in brain neurochemistry. Here, we address this issue by first identifying molecular targets of the venom, i.e., proteins to which venom components bind and interact with to mediate altered behaviour. Our results show that venom components bind to synaptic proteins and likely interfere with both pre- and postsynaptic processes. Since behavioural changes induced by the sting are long-lasting and reversible, we hypothesized further that long-term effects of the venom must be mediated by up or down regulation of cerebral ganglia proteins. We therefore characterize changes in cerebral ganglia protein abundance of stung cockroaches at different time points after the sting by quantitative mass spectrometry. Our findings indicate that numerous proteins are differentially expressed in cerebral ganglia of stung cockroaches, many of which are involved in signal transduction, such as the Rho GTPase pathway, which is implicated in synaptic plasticity. Altogether, our data suggest that the Jewel wasp commandeers cockroach behaviour through molecular cross-talk between venom components and molecular targets in the cockroach central nervous system, leading to broad-based alteration of synaptic efficacy and behavioural changes that promote successful development of wasp progeny.
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Affiliation(s)
- Maayan Kaiser
- Department of Life Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel; Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel
| | - Ryan Arvidson
- Graduate Program in Biochemistry and Molecular Biology, University of California, Riverside, CA, 92521, USA; Department of Entomology, University of California, Riverside, CA, 92521, USA
| | - Raz Zarivach
- Department of Life Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel
| | - Michael E Adams
- Graduate Program in Biochemistry and Molecular Biology, University of California, Riverside, CA, 92521, USA; Department of Molecular, Cell and Systems Biology, University of California, Riverside, CA, 92521, USA; Department of Entomology, University of California, Riverside, CA, 92521, USA
| | - Frederic Libersat
- Department of Life Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel; Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva, 84105, Israel.
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99777
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Fostok SF, El-Sibai M, El-Sabban M, Talhouk RS. Gap Junctions and Wnt Signaling in the Mammary Gland: a Cross-Talk? J Mammary Gland Biol Neoplasia 2019; 24:17-38. [PMID: 30194659 DOI: 10.1007/s10911-018-9411-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/03/2018] [Indexed: 12/21/2022] Open
Abstract
Connexins (Cxs), the building blocks of gap junctions (GJs), exhibit spatiotemporal patterns of expression and regulate the development and differentiation of the mammary gland, acting via channel-dependent and channel-independent mechanisms. Impaired Cx expression and localization are reported in breast cancer, suggesting a tumor suppressive role for Cxs. The signaling events that mediate the role of GJs in the development and tumorigenesis of the mammary gland remain poorly identified. The Wnt pathways, encompassing the canonical or the Wnt/β-catenin pathway and the noncanonical β-catenin-independent pathway, also play important roles in those processes. Indeed, aberrant Wnt signaling is associated with breast cancer. Despite the coincident roles of Cxs and Wnt pathways, the cross-talk in the breast tissue is poorly defined, although this is reported in a number of other tissues. Our previous studies revealed a channel-independent role for Cx43 in inducing differentiation or suppressing tumorigenesis of mammary epithelial cells by acting as a negative regulator of the Wnt/β-catenin pathway. Here, we provide a brief overview of mammary gland development, with emphasis on the role of Cxs in development and tumorigenesis of this tissue. We also discuss the role of Wnt signaling in similar contexts, and review the literature illustrating interplay between Cxs and Wnt pathways.
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Affiliation(s)
- Sabreen F Fostok
- Department of Biology, Faculty of Arts and Sciences, American University of Beirut (AUB), P.O. Box: 11-0236, Beirut, Lebanon
| | - Mirvat El-Sibai
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University (LAU), Beirut, Lebanon
| | - Marwan El-Sabban
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut (AUB), Beirut, Lebanon
| | - Rabih S Talhouk
- Department of Biology, Faculty of Arts and Sciences, American University of Beirut (AUB), P.O. Box: 11-0236, Beirut, Lebanon.
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99778
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Yang B, Zhang Y, Li B, Zou Y, Xiao C. Fine particulate matter alters the microecology of the murine respiratory tract. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:8623-8632. [PMID: 30707384 DOI: 10.1007/s11356-019-04372-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
Fine particulate matter is a global challenge to human health. We investigated the effects and potential mechanisms of fine particulate matter on respiratory tract microecology in a lung injury mouse model. BALB/c mice were randomized into exposed and control groups. We found that the levels of soluble tumor necrosis factor receptor I was increased following the PM2.5 exposure. 16S rRNA sequencing of respiratory tract lavage fluid confirmed that the composition of the respiratory tract microecology was altered by the exposure. Lactobacillus was the most abundant of bacterial species present. Collectively, these results establish a link between exposure to fine particulate matter and alterations to the respiratory tract microecology. Elucidation of the underlying mechanisms may lead to treatment strategies in lung injury.
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Affiliation(s)
- Biao Yang
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Yu Zhang
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Bingyu Li
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Yang Zou
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China
| | - Chunling Xiao
- Key Lab of Environmental Pollution and Microecology of Liaoning Province, Shenyang Medical College, No. 146, Huanghe North Street, Shenyang, Liao Ning, People's Republic of China.
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99779
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Torres LH, Garcia RCT, Blois AMM, Pacheco-Neto M, Camarini R, Britto LR, Marcourakis T. Early postnatal tobacco smoke exposure triggers anxiety-like behavior and decreases synaptic proteins even after a long exposure-free period in mice. Brain Res 2019; 1707:99-106. [DOI: 10.1016/j.brainres.2018.11.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/30/2018] [Accepted: 11/17/2018] [Indexed: 12/29/2022]
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99780
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Sapkota A, Park SJ, Choi JW. Neuroprotective Effects of 6-Shogaol and Its Metabolite, 6-Paradol, in a Mouse Model of Multiple Sclerosis. Biomol Ther (Seoul) 2019; 27:152-159. [PMID: 30001610 PMCID: PMC6430232 DOI: 10.4062/biomolther.2018.089] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 05/23/2018] [Accepted: 05/29/2018] [Indexed: 12/21/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease characterized by progressive neuronal loss, neuroinflammation, axonal degeneration, and demyelination. Previous studies have reported that 6-shogaol, a major constituent of ginger (Zingiber officinale rhizome), and its biological metabolite, 6-paradol, have anti-inflammatory and anti-oxidative properties in the central nervous system (CNS). In the present study, we investigated whether 6-shogaol and 6-paradol could ameliorate against experimental autoimmune encephalomyelitis (EAE), a mouse model of MS elicited by myelin oligodendrocyte glycoprotein (MOG35-55) peptide immunization with injection of pertussis toxin. Once-daily administration of 6-shogaol and 6-paradol (5 mg/kg/day, p.o.) to symptomatic EAE mice significantly alleviated clinical signs of the disease along with remyelination and reduced cell accumulation in the white matter of spinal cord. Administration of 6-shogaol and 6-paradol into EAE mice markedly reduced astrogliosis and microglial activation as key features of immune responses inside the CNS. Furthermore, administration of these two molecules significantly suppressed expression level of tumor necrosis factor-α, a major proinflammatory cytokine, in EAE spinal cord. Collectively, these results demonstrate therapeutic efficacy of 6-shogaol or 6-paradol for EAE by reducing neuroinflammatory responses, further indicating the therapeutic potential of these two active ingredients of ginger for MS.
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Affiliation(s)
- Arjun Sapkota
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Republic of Korea
| | - Se Jin Park
- School of Natural Resources and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ji Woong Choi
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Republic of Korea
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99781
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Shahidi S, Komaki A, Sadeghian R, Asl SS. Different doses of methamphetamine alter long-term potentiation, level of BDNF and neuronal apoptosis in the hippocampus of reinstated rats. J Physiol Sci 2019; 69:409-419. [PMID: 30680641 PMCID: PMC10717877 DOI: 10.1007/s12576-019-00660-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/05/2019] [Indexed: 12/28/2022]
Abstract
Methamphetamine (METH) is a psychostimulant. The precise mechanisms of its effects remain unknown and current relapse treatments have low efficacy. However, brain-derived neurotrophic factor (BDNF) and neuronal plasticity are essential contributors, despite paradoxical reports and a lack of comprehensive studies. Therefore, we investigated the effects of different doses of METH on long-term potentiation (LTP), BDNF expression and neuronal apoptosis in the hippocampus of reinstated rats. Rats were injected intraperitoneally with METH (1, 5, or 10 mg/kg) or saline, and trained in a conditioned place preference paradigm. Following implementation of the reinstatement model, electrophysiology, western blotting and TUNEL assay were performed to assess behavior, LTP components, BDNF expression, and neuronal apoptosis, respectively. The results demonstrated that the preference scores, population spike amplitude and BDNF expression markedly decreased in the METH (10 mg/kg) group compared with the other groups. In contrast, METH (5 mg/kg) significantly increased these factors more than the control group. There was no change in variables between METH (1 mg/kg) and the control group. Also, apoptosis of the hippocampus was increased in the METH (10 mg/kg) group compared with the METH (5 mg/kg) group. These results suggest that alterations in synaptic plasticity, expression of BDNF and neuronal apoptosis in the hippocampus has a vital role in the context-induced reinstatement of METH seeking.
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Affiliation(s)
- Siamak Shahidi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Reihaneh Sadeghian
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
- Medical Toxicology and Drug Abuse Research Center, Birjand University of Medical Sciences, Birjand, Iran.
| | - Sara Soleimani Asl
- Anatomy Departments, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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99782
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Baumfalk DR, Opoku-Acheampong AB, Caldwell JT, Ade CJ, Copp SW, Musch TI, Behnke BJ. Effects of prostate cancer and exercise training on left ventricular function and cardiac and skeletal muscle mass. J Appl Physiol (1985) 2019; 126:668-680. [PMID: 30571286 DOI: 10.1152/japplphysiol.00829.2018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Prostate cancer was found to reduce cardiac and left ventricle (LV) masses in association with diminished exercise capacity in rats. We tested the hypothesis that exercise training will mitigate prostate cancer-induced cardiac and skeletal muscle atrophy and improve LV function versus sedentary tumor-bearing counterparts. Copenhagen rats ( n = 39; ~5 mo old) were randomized into four groups: exercise-trained tumor-bearing (EXTB) or control (EXCON) and sedentary tumor-bearing (SEDTB) or control (SEDCON). Dunning R-3327 prostate cancer cells were injected orthotopically in 19 of the 39 animals. Treadmill exercise training was performed for 60 min/day for ~30 days. Animals underwent echocardiography to examine ventricle dimensions "Pre-" cancer injection or exercise (PRE) and 15 (Post 1) and 32-35 (Post 2) days after cancer cell injection with tissues collected after Post 2. LV TNF-α and IL-6 concentrations were measured post mortem. Cardiac and LV mass of SEDTB animals were lower than all groups ( P < 0.05). Tumor mass was negatively correlated with LV mass in EXTB (-0.75, P < 0.02) and SEDTB animals (-0.72, P < 0.02). EXCON group had higher stroke volume Post 2 assessment compared with both sedentary groups ( P < 0.05) but not EXTB animals. No difference in LV [IL-6] or [TNF-α] was found between the cancer groups. The current investigation demonstrates prostate cancer, independent of anticancer treatment, significantly reduces cardiac mass and LV mass as well as locomotor muscle masses. However, moderate-intensity exercise training can mitigate cardiac and skeletal muscle atrophy with prostate cancer and preserve the cardiac phenotype (i.e., mass and function) to that of the healthy sedentary group. NEW & NOTEWORTHY This study demonstrates the atrophic effects of prostate cancer on cardiac and skeletal muscle mass independent of anticancer treatment(s) that can be mitigated with moderate-intensity exercise. These findings have important implications for potentially improving the quality of life as well as therapeutic outcomes for patients with prostate cancer.
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Affiliation(s)
- Dryden R Baumfalk
- Department of Kinesiology, Kansas State University , Manhattan, Kansas
| | | | - Jacob T Caldwell
- Department of Kinesiology, Kansas State University , Manhattan, Kansas
| | - Carl J Ade
- Department of Kinesiology, Kansas State University , Manhattan, Kansas.,Johnson Cancer Research Center, Kansas State University , Manhattan, Kansas
| | - Steven W Copp
- Department of Kinesiology, Kansas State University , Manhattan, Kansas
| | - Timothy I Musch
- Department of Kinesiology, Kansas State University , Manhattan, Kansas.,Department of Anatomy and Physiology, Kansas State University , Manhattan, Kansas
| | - Bradley J Behnke
- Department of Kinesiology, Kansas State University , Manhattan, Kansas.,Johnson Cancer Research Center, Kansas State University , Manhattan, Kansas
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99783
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Schropp J, Khot A, Shah DK, Koch G. Target-Mediated Drug Disposition Model for Bispecific Antibodies: Properties, Approximation, and Optimal Dosing Strategy. CPT Pharmacometrics Syst Pharmacol 2019; 8:177-187. [PMID: 30480383 PMCID: PMC6430159 DOI: 10.1002/psp4.12369] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/17/2018] [Indexed: 12/12/2022] Open
Abstract
Bispecific antibodies (BsAbs) bind to two different targets, and create two binary and one ternary complex (TC). These molecules have shown promise as immuno-oncology drugs, and the TC is considered the pharmacologically active species that drives their pharmacodynamic effect. Here, we have presented a general target-mediated drug disposition (TMDD) model for these BsAbs, which bind to two different targets on different cell membranes. The model includes four different binding events for BsAbs, turnover of the targets, and internalization of the complexes. In addition, a quasi-equilibrium (QE) approximation with decreased number of binding parameters and, if necessary, reduced internalization parameters is presented. The model is further used to investigate the kinetics of BsAb and TC concentrations. Our analysis shows that larger doses of BsAbs may delay the build-up of the TC. Consequently, a method to compute the optimal dosing strategy of BsAbs, which will immediately create and maintain maximal possible TC concentration, is presented.
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Affiliation(s)
- Johannes Schropp
- Department of Mathematics and StatisticsUniversity of KonstanzKonstanzGermany
| | - Antari Khot
- Department of Pharmaceutical SciencesSchool of Pharmacy and Pharmaceutical SciencesState University of New York at BuffaloBuffaloNew YorkUSA
| | - Dhaval K. Shah
- Department of Pharmaceutical SciencesSchool of Pharmacy and Pharmaceutical SciencesState University of New York at BuffaloBuffaloNew YorkUSA
| | - Gilbert Koch
- Department of Pharmaceutical SciencesSchool of Pharmacy and Pharmaceutical SciencesState University of New York at BuffaloBuffaloNew YorkUSA
- Paediatric Pharmacology and Pharmacometrics ResearchUniversity of Basel Children's Hospital (UKBB)BaselSwitzerland
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99784
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Luo J, Chen XQ, Li P. The Role of TGF-β and Its Receptors in Gastrointestinal Cancers. Transl Oncol 2019; 12:475-484. [PMID: 30594036 PMCID: PMC6314240 DOI: 10.1016/j.tranon.2018.11.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 11/20/2018] [Accepted: 11/20/2018] [Indexed: 02/07/2023] Open
Abstract
Early detection of gastrointestinal tumors improves patient survival. However, patients with these tumors are typically diagnosed at an advanced stage and have poor prognosis. The incidence and mortality of gastrointestinal cancers, including esophageal, gastric, liver, colorectal, and pancreatic cancers, are increasing worldwide. Novel diagnostic and therapeutic agents are required to improve patient survival and quality of life. The tumor microenvironment, which contains nontumor cells, signaling molecules such as growth factors and cytokines, and extracellular matrix proteins, plays a critical role in cancer cell proliferation, invasion, and metastasis. Transforming growth factor beta (TGF-β) signaling has dual roles in gastrointestinal tumor development and progression as both a tumor suppressor and tumor promoter. Here, we review the dynamic roles of TGF-β and its receptors in gastrointestinal tumors and provide evidence that targeting TGF-β signaling may be an effective therapeutic strategy.
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Affiliation(s)
- Jingwen Luo
- Oncology Department, West China Hospital of Medicine, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Xu-Qiao Chen
- Department of Neurosciences, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Ping Li
- Oncology Department, West China Hospital of Medicine, Sichuan University, Chengdu, Sichuan, 610041, P.R. China.
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99785
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Weitzman SP, Sherman SI. Novel Drug Treatments of Progressive Radioiodine-Refractory Differentiated Thyroid Cancer. Endocrinol Metab Clin North Am 2019; 48:253-268. [PMID: 30717907 DOI: 10.1016/j.ecl.2018.10.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Systemic therapy options have emerged for treatment of progressive, radioiodine-refractory differentiated thyroid carcinoma. Approved therapies that target tumor angiogenesis, lenvatinib and sorafenib, improve progression-free survival and, in an older subset, lenvatinib can prolong overall survival. Treatments based on targeting specific somatic genetic alterations are also available, which potentially also may prolong progression-free survival but are not yet approved for use by the Food and Drug Administration for this specific disease. More novel approaches that may benefit select patients include resensitization therapies that allow further radioiodine utilization and new immunotherapy concepts.
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Affiliation(s)
- Steven P Weitzman
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1461, Houston, TX 77030, USA
| | - Steven I Sherman
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1461, Houston, TX 77030, USA.
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99786
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Alamandine attenuates arterial remodelling induced by transverse aortic constriction in mice. Clin Sci (Lond) 2019; 133:629-643. [PMID: 30737255 DOI: 10.1042/cs20180547] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 01/19/2019] [Accepted: 02/08/2019] [Indexed: 12/27/2022]
Abstract
Aims: The renin-angiotensin system (RAS) plays an important role in the pathophysiology of vascular diseases, especially as a mediator of inflammation and tissue remodelling. Alamandine (Ala1-angiotensin-(1-7)) is a new biologically active peptide from the RAS, interacting with Mas-related G-protein-coupled receptor member D. Although a growing number of studies reveal the cardioprotective effects of alamandine, there is a paucity of data on its participation in vascular remodelling associated events. In the present study, we investigated the effects of alamandine on ascending aorta remodelling after transverse aortic constriction (TAC) in mice. Methods and results: C57BL/6J male mice were divided into the following groups: Sham (sham-operated), TAC (operated) and TAC+ALA (operated and treated with alamandine-HPβCD (2-Hydroxypropyl-β-cyclodextrin), 30 μg/kg/day, by gavage). Oral administration of alamandine for 14 days attenuated arterial remodelling by decreasing ascending aorta media layer thickness and the cells density in the adventitia induced by TAC. Alamandine administration attenuated ascending aorta fibrosis induced by TAC, through a reduction in the following parameters; total collagen deposition, expression collagen III and transforming growth factor-β (TGF-β) transcripts, matrix metalloproteinases (MMPs) activity and vascular expression of MMP-2. Importantly, alamandine decreased vascular expression of proinflammatory genes as CCL2, tumour necrosis factor α (TNF-α) and interleukin-1β (IL-1β), and was able to increase expression of MRC1 and FIZZ1, pro-resolution markers, after TAC surgery. Conclusion: Alamandine treatment attenuates vascular remodelling after TAC, at least in part, through anti-fibrotic and anti-inflammatory effects. Hence, this work opens new avenues for the use of this heptapeptide also as a therapeutic target for vascular disease.
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99787
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Liu Q, Jin Z, Xu Z, Yang H, Li L, Li G, Li F, Gu S, Zong S, Zhou J, Cao L, Wang Z, Xiao W. Antioxidant effects of ginkgolides and bilobalide against cerebral ischemia injury by activating the Akt/Nrf2 pathway in vitro and in vivo. Cell Stress Chaperones 2019; 24:441-452. [PMID: 30815818 PMCID: PMC6439064 DOI: 10.1007/s12192-019-00977-1] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/22/2019] [Accepted: 01/30/2019] [Indexed: 12/19/2022] Open
Abstract
Ginkgolide terpenoid lactones, including ginkgolides and bilobalide, are two crucial bioactive constituents of extract of Ginkgo biloba (EGb) which was used in the treatment of cardiovascular and cerebrovascular diseases. The aims of this study were to investigate the antioxidant effects and mechanism of ginkgolides (ginkgolide A (GA), ginkgolide B (GB), ginkgolide K (GK)) and bilobalide (BB) against oxidative stress induced by transient focal cerebral ischemia. In vitro, SH-SY5Y cells were exposed to oxygen-glucose deprivation (OGD) for 4 h followed by reoxygenation with ginkgolides and BB treatments for 6 h, and then cell viability, superoxide dismutase (SOD), and ROS were respectively detected using kit. Western blot was used to confirm the protein levels of hemeoxygenase-1 (HO-1), quinone oxidoreductase l (Nqo1), Akt, phosphorylated Akt (p-Akt), nuclear factor-E2-related factor2 (Nrf2), and phosphorylated Nrf2 (p-Nrf2). GB combined with different concentrations of LY294002 (PI3K inhibitor) were administrated to SH-SY5Y cells for 1 h after OGD, and then p-Akt and p-Nrf2 levels were detected by western blot. In vivo, 2 h of middle cerebral artery occlusion (MCAO) model was established, followed with reperfusion and GB treatments for 24 and 72 h. The infarct volume ratios were confirmed by TTC staining. The protein levels of HO-1, Nqo1, SOD1, Akt, p-Akt, Nrf2, and p-Nrf2 were detected using western blot and immunohistochemistry (IHC). Experimental data in vitro confirm that GA, GB, GK, and BB resulted in significant decrease of ROS and increase of SOD activities and protein levels of HO-1 and Nqo1; however, GB group had a significant advantage in comparison with the GA and GK groups. Moreover, after ginkgolides and BB treatments, p-Akt and p-Nrf2 were significantly upregulated, which could be inhibited by LY294002 in a dose-dependent manner, meanwhile, GB exhibited more effective than GA and GK. In vivo, TTC staining indicated that the infarct volume ratios in MCAO rats were dramatically decreased by GB in a dose-dependent manner. Furthermore, GB significantly upregulated the protein levels of HO-1, Nqo1, SOD, p-Akt, p-Nrf2, and Nrf2. In conclusion, GA, GB, GK, and BB significantly inhibited oxidative stress damage caused by cerebral ischemia reperfusion. Compared with GA, GK, and BB, GB exerts the strongest antioxidant stress effects against ischemic stroke. Moreover, ginkgolides and BB upregulated the levels of antioxidant proteins through mediating the Akt/Nrf2 signaling pathway to protect neurons from oxidative stress injury.
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Affiliation(s)
- Qiu Liu
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Zhiquan Jin
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Zhiliang Xu
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Hao Yang
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Liang Li
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Guiping Li
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Fang Li
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Shaoli Gu
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Shaobo Zong
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Jun Zhou
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Liang Cao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Zhenzhong Wang
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China
| | - Wei Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, 222001, Jiangsu, China.
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, 222001, Jiangsu, China.
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99788
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Shyness, alcohol use disorders and ‘hangxiety’: A naturalistic study of social drinkers. PERSONALITY AND INDIVIDUAL DIFFERENCES 2019. [DOI: 10.1016/j.paid.2018.10.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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99789
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Filippini T, Tancredi S, Malagoli C, Cilloni S, Malavolti M, Violi F, Vescovi L, Bargellini A, Vinceti M. Aluminum and tin: Food contamination and dietary intake in an Italian population. J Trace Elem Med Biol 2019; 52:293-301. [PMID: 30732896 DOI: 10.1016/j.jtemb.2019.01.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/20/2019] [Accepted: 01/22/2019] [Indexed: 12/13/2022]
Abstract
Aluminum and tin are ubiquitous in the environment. In normal biological systems, however, they are present only in trace amounts and have no recognized biological functions in humans. High exposure to these metals can result in adverse health effects such as neurodegenerative diseases. In non-occupationally exposed subjects, diet is the primary source of exposure. In this study, we aimed at estimating dietary aluminum and tin intake in an Italian adult population. We measured aluminum and tin concentrations through inductively-coupled plasma mass spectrometry in 908 food samples. We also estimated dietary intake of these two metals, by using a validated semi-quantitative food-frequency questionnaire administered to 719 subjects (319 men and 400 women) recruited from the general population of the Emilia Romagna region, Northern Italy. We found the highest aluminum levels in legumes, sweets, and cereals, while the highest tin levels were in sweets, meat and seafood. The estimated median daily dietary intake of aluminum was 4.1 mg/day (Interquartile range - IQR: 3.3-5.2), with a major contribution from beverages (28.6%), cereals (16.9%), and leafy vegetables (15.2%). As for tin, we estimated a median intake of 66.8 μg/day (IQR: 46.7-93.7), with a major contribution from vegetables (mainly tomatoes) (24.9%), fruit (15.5%), aged cheese (12.2%), and processed meat (10.4%). This study provides an updated estimate of the dietary intake of aluminum and tin in a Northern-Italy adult population, based on data from a validated food-frequency questionnaire. The intake determined for this population does not exceed the established thresholds of tolerable intake.
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Affiliation(s)
- Tommaso Filippini
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy.
| | - Stefano Tancredi
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Carlotta Malagoli
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Silvia Cilloni
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Marcella Malavolti
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Federica Violi
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Luciano Vescovi
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Annalisa Bargellini
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Marco Vinceti
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy; Department of Epidemiology, Boston University School of Public Health, Boston, USA
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99790
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Wu SP, Li D, Wang N, Hou JC, Zhao L. YiQi Tongluo Granule against Cerebral Ischemia/Reperfusion Injury in Rats by Freezing GluN2B and CaMK II through NMDAR/ERK1/2 Signaling. Chem Pharm Bull (Tokyo) 2019; 67:244-252. [DOI: 10.1248/cpb.c18-00806] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Si-peng Wu
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine
- Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Chinese Medicine
- Key Laboratory of Xin’an Medicine, Ministry of Education
| | - Dan Li
- Jing-Jin-Ji Joint Innovation Pharmaceutical (Beijing) Co., Ltd
| | - Ning Wang
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine
- Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Chinese Medicine
- Key Laboratory of Xin’an Medicine, Ministry of Education
| | - Jin-cai Hou
- Key Laboratory of Xin’an Medicine, Ministry of Education
| | - Li Zhao
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine
- Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Chinese Medicine
- Key Laboratory of Xin’an Medicine, Ministry of Education
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99791
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Volodina YL, Dezhenkova LG, Tikhomirov AS, Tatarskiy VV, Kaluzhny DN, Moisenovich AM, Moisenovich MM, Isagulieva AK, Shtil AA, Tsvetkov VB, Shchekotikhin AE. New anthra[2,3-b]furancarboxamides: A role of positioning of the carboxamide moiety in antitumor properties. Eur J Med Chem 2019; 165:31-45. [DOI: 10.1016/j.ejmech.2018.12.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/09/2018] [Accepted: 12/25/2018] [Indexed: 01/10/2023]
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99792
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99793
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MiR-218-5p targets LHFPL3 to regulate proliferation, migration, and epithelial-mesenchymal transitions of human glioma cells. Biosci Rep 2019; 39:BSR20180879. [PMID: 30314994 PMCID: PMC6395304 DOI: 10.1042/bsr20180879] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/27/2018] [Accepted: 08/20/2018] [Indexed: 01/01/2023] Open
Abstract
Glioblastoma (GBM) is a main subtype of high-grade gliomas with features in progressive brain tumor. Lipoma HMGIC fusion partner-like 3 (LHFPL3) is reported to be highly expressed in malignant glioma, but the relationship and mechanism between LHFPL3 and tumor is inexplicit. The present study aimed to screen the miRNAs targeting LHFPL3 and verify the pathogenesis and development of gliomas. Bioinformatics software predicted that miR-218-5p and miR-138-5p can specifically bind to LHFPL3 mRNA. And the expression of miR-218-5p and miR-138-5p was down-regulated in glioma cell lines and glioma tissues from the patients compared with the normal cells. While dual luciferase activity experiment confirmed, only miR-218-5p can directly bind to LHFPL3. After miR-218-5p transfection of U251 and U87 cells, cytological examinations found a reduction in cell activity, proliferation and invasive ability. Further study showed that miR-218-5p transfection could inhibit epithelial–mesenchymal transitions (EMT). Therefore, miR-218-5p targeting LHFPL3 mRNA plays significant roles in preventing the invasiveness of glioma cells. The present study also revealed a novel mechanism for miRNA–LHFPL3 interaction in glioma cells, which may be potential targets for developing therapies in treating glioma.
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99794
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Gao J, Song J, Du M, Mao X. Bovine α-lactalbumin hydrolysates (α-LAH) attenuate high-fat diet induced nonalcoholic fatty liver disease by modulating hepatic lipid metabolism in C57BL/6J mice. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.01.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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99795
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Awaji M, Singh RK. Cancer-Associated Fibroblasts' Functional Heterogeneity in Pancreatic Ductal Adenocarcinoma. Cancers (Basel) 2019; 11:cancers11030290. [PMID: 30832219 PMCID: PMC6468677 DOI: 10.3390/cancers11030290] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a leading cause of cancer-related deaths in the USA. Desmoplasia and inflammation are two major hallmarks of PDAC. Desmoplasia, composed of extracellular matrix (ECM), cancer-associated fibroblasts (CAFs), and infiltrating immune and endothelial cells, acts as a biophysical barrier to hinder chemotherapy and actively contributes to tumor progression and metastasis. CAFs represent a multifunctional subset of PDAC microenvironment and contribute to tumor initiation and progression through ECM deposition and remodeling, as well as the secretion of paracrine factors. Attempts to resolve desmoplasia by targeting CAFs can render an adverse outcome, which is likely due to CAFs heterogeneity. Recent reports describe subsets of CAFs that assume more secretory functions, in addition to the typical myofibroblast phenotype. Here, we review the literature and describe the relationship between CAFs and inflammation and the role of the secretory-CAFs in PDAC.
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Affiliation(s)
- Mohammad Awaji
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 985845 UNMC, Omaha, NE 68198-5845, USA.
- Department of Pathology and Laboratory Medicine, King Fahad Specialist Hospital-Dammam, Dammam 31444, Saudi Arabia.
| | - Rakesh K Singh
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 985845 UNMC, Omaha, NE 68198-5845, USA.
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99796
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Lázár-Molnár E, Delgado JC. Implications of Monoclonal Antibody Therapeutics Use for Clinical Laboratory Testing. Clin Chem 2019; 65:393-405. [DOI: 10.1373/clinchem.2016.266973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 07/10/2018] [Indexed: 12/15/2022]
Abstract
Abstract
BACKGROUND
Monoclonal antibody therapeutics (MATs) represent a rapidly expanding class of biological drugs used to treat a variety of diseases. The widespread use of MATs increasingly affects clinical laboratory medicine.
CONTENT
This review provides an overview of MATs currently approved for clinical use in the US, starting from basic biology of antibodies to the engineering, pharmacokinetic and pharmacodynamic properties, nomenclature, and production of MATs. Immunogenicity and the production of antidrug antibodies (ADAs) play a major role in loss of therapeutic response and the development of treatment failure to certain MATs. Laboratory-based monitoring for MATs and detection of ADAs represent emerging needs for optimizing the use of MATs to achieve the best outcomes at affordable cost. In addition, the increased use of MATs affects clinical laboratory testing by interference of MATs with clinical laboratory tests across different areas of laboratory medicine, including histocompatibility, blood bank, and monoclonal protein testing.
SUMMARY
The number of MATs is rapidly growing each year to address previously unmet clinical needs. Laboratory monitoring of MATs and detecting ADAs represent expanding areas of laboratory testing. Test-based strategies allow for treatment optimization at the level of the individual patient, thus providing a personalized medicine approach. In addition, clinical laboratories must be aware that the increasing use of MATs affects laboratory testing and be ready to implement methods to eliminate or mitigate interference with clinical tests.
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Affiliation(s)
- Eszter Lázár-Molnár
- ARUP Laboratories, Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT
| | - Julio C Delgado
- ARUP Laboratories, Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT
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99797
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Demonstration of functional similarity of a biosimilar adalimumab SB5 to Humira®. Biologicals 2019; 58:7-15. [DOI: 10.1016/j.biologicals.2018.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 11/09/2018] [Accepted: 12/03/2018] [Indexed: 12/13/2022] Open
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99798
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Subramaniam M, Weber LP, Loewen ME. Intestinal electrogenic sodium-dependent glucose absorption in tilapia and trout reveal species differences in SLC5A-associated kinetic segmental segregation. Am J Physiol Regul Integr Comp Physiol 2019; 316:R222-R234. [PMID: 30601703 PMCID: PMC6459381 DOI: 10.1152/ajpregu.00304.2018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/12/2018] [Accepted: 12/22/2018] [Indexed: 12/16/2022]
Abstract
Electrogenic sodium-dependent glucose transport along the length of the intestine was compared between the omnivorous Nile tilapia ( Oreochromis niloticus) and the carnivorous rainbow trout ( Oncorhynchus mykiss) in Ussing chambers. In tilapia, a high-affinity, high-capacity kinetic system accounted for the transport throughout the proximal intestine, midintestine, and hindgut segments. Similar dapagliflozin and phloridzin dihydrate inhibition across all segments support this homogenous high-affinity, high-capacity system throughout the tilapia intestine. Genomic and gene expression analysis supported findings by identifying 10 of the known 12 SLC5A family members, with homogeneous expression throughout the segments with dominant expression of sodium-glucose cotransporter 1 (SGLT1; SLC5A1) and sodium-myoinositol cotransporter 2 (SMIT2; SLC5A11). In contrast, trout's electrogenic sodium-dependent glucose absorption was 20-35 times lower and segregated into three significantly different kinetic systems found in different anatomical segments: a high-affinity, low-capacity system in the pyloric ceca; a super-high-affinity, low-capacity system in the midgut; and a low-affinity, low-capacity system in the hindgut. Genomic and gene expression analysis found 5 of the known 12 SLC5A family members with dominant expression of SGLT1 ( SLC5A1), sodium-glucose cotransporter 2 (SGLT2; SLC5A2), and SMIT2 ( SLC5A11) in the pyloric ceca, and only SGLT1 ( SLC5A1) in the midgut, accounting for differences in kinetics between the two. The hindgut presented a low-affinity, low-capacity system partially attributed to a decrease in SGLT1 ( SLC5A1). Overall, the omnivorous tilapia had a higher electrogenic glucose absorption than the carnivorous trout, represented with different kinetic systems and a greater expression and number of SLC5A orthologs. Fish differ from mammals, having hindgut electrogenic glucose absorption and segment specific transport kinetics.
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Affiliation(s)
- Marina Subramaniam
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan , Saskatoon, Saskatchewan , Canada
| | - Lynn P Weber
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan , Saskatoon, Saskatchewan , Canada
| | - Matthew E Loewen
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan , Saskatoon, Saskatchewan , Canada
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99799
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Raic A, Naolou T, Mohra A, Chatterjee C, Lee-Thedieck C. 3D models of the bone marrow in health and disease: yesterday, today and tomorrow. MRS COMMUNICATIONS 2019; 9:37-52. [PMID: 30931174 PMCID: PMC6436722 DOI: 10.1557/mrc.2018.203] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/10/2018] [Indexed: 05/12/2023]
Abstract
The complex interaction between hematopoietic stem cells (HSCs) and their microenvironment in the human bone marrow ensures a life-long blood production by balancing stem cell maintenance and differentiation. This so-called HSC niche can be disturbed by malignant diseases. Investigating their consequences on hematopoiesis requires deep understanding of how the niches function in health and disease. To facilitate this, biomimetic models of the bone marrow are needed to analyse HSC maintenance and hematopoiesis under steady-state and diseased conditions. Here, 3D bone marrow models, their fabrication methods (including 3D bioprinting) and implementations recapturing bone marrow functions in health and diseases, are presented.
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Affiliation(s)
- Annamarija Raic
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Toufik Naolou
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Anna Mohra
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Chandralekha Chatterjee
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Cornelia Lee-Thedieck
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
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99800
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Deng S, Wang A, Chen X, Du Q, Wu Y, Chen G, Guo W, Li Y. HBD Inhibits the Development of Colitis-Associated Cancer in Mice via the IL-6R/STAT3 Signaling Pathway. Int J Mol Sci 2019; 20:ijms20051069. [PMID: 30832202 PMCID: PMC6429321 DOI: 10.3390/ijms20051069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 02/21/2019] [Accepted: 02/25/2019] [Indexed: 01/30/2023] Open
Abstract
Colitis-associated cancer (CAC) is a malignant disease of the colon that is caused by recurrent episodes of chronic intestinal inflammation. Huangqi Baizhu decoction (HBD) is a classic prescription comprised of Radix Astragali and Rhizoma Atractylodis, which are usually used to treat digestive conditions, such as peptic ulcers, colitis, or colorectal carcinoma in clinics. HBD is well known for “tonifying qi and spleen” based on the theories of traditional Chinese medicine, and has the preponderant effect of alleviating chronic intestinal mucosa damage associated with disease. However, the underlying mechanism behind this is still unknown. In the current study, we employed the AOM/DSS mouse model to analyze the effects of HBD on the development of inflammation in colonic carcinoma. The in vivo study showed that HBD could significantly reduce the mortality of mice and control the incidence and size of colonic tumors by inhibiting the IL-6/STAT3 signaling pathway. In vitro, Astragaloside and Atractylenolide (CAA), the main components of HBD, inhibited the proliferation of HCT-116 cells as determined by an MTT assay. Furthermore, CAA notably suppressed the protein expression of IL-6R, STAT3, Survivin, and Cyclin D1 induced by IL-6 in HCT-116 and RAW264.7 cells. These results suggested that HBD exhibits anti-inflammatory and anti-proliferative effects, inhibiting the development of CAC in mice.
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Affiliation(s)
- Song Deng
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Aiping Wang
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Xi Chen
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Qun Du
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Yanli Wu
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Gang Chen
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Wenfeng Guo
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
| | - Yanwu Li
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Guangzhou 510405, China.
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