1
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Chen YC, Waghorn PA, Rosales IA, Arora G, Erstad DJ, Rotile NJ, Jones CM, Ferreira DS, Wei L, Martinez RV, Schlerman FJ, Wellen J, Fuchs BC, Colvin RB, Ay I, Caravan P. Molecular MR Imaging of Renal Fibrogenesis in Mice. J Am Soc Nephrol 2023; 34:1159-1165. [PMID: 37094382 PMCID: PMC10356170 DOI: 10.1681/asn.0000000000000148] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/12/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND In most CKDs, lysyl oxidase oxidation of collagen forms allysine side chains, which then form stable crosslinks. We hypothesized that MRI with the allysine-targeted probe Gd-oxyamine (OA) could be used to measure this process and noninvasively detect renal fibrosis. METHODS Two mouse models were used: hereditary nephritis in Col4a3-deficient mice (Alport model) and a glomerulonephritis model, nephrotoxic nephritis (NTN). MRI measured the difference in kidney relaxation rate, ΔR1, after intravenous Gd-OA administration. Renal tissue was collected for biochemical and histological analysis. RESULTS ΔR1 was increased in the renal cortex of NTN mice and in both the cortex and the medulla of Alport mice. Ex vivo tissue analyses showed increased collagen and Gd-OA levels in fibrotic renal tissues and a high correlation between tissue collagen and ΔR1. CONCLUSIONS Magnetic resonance imaging using Gd-OA is potentially a valuable tool for detecting and staging renal fibrogenesis.
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Affiliation(s)
- Yin-Ching Chen
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Philip A. Waghorn
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Ivy A. Rosales
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Gunisha Arora
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Derek J. Erstad
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Nicholas J. Rotile
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Chloe M. Jones
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Diego S. Ferreira
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Lan Wei
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Robert V.P. Martinez
- Inflammation and Immunology Research Unit, Pfizer Inc., Cambridge, Massachusetts
| | | | - Jeremy Wellen
- Early Clinical Development, Pfizer Inc., Cambridge, Massachusetts
| | - Bryan C. Fuchs
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Robert B. Colvin
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ilknur Ay
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Peter Caravan
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
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2
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Shetty NS, Parcha V, Pampana A, Kalra R, Pandey A, Morris A, Prabhu S, Arora G, Arora P. Incident heart failure risk reclassification with race-$$$independent estimated glomerular filtration rate: an NHLBI pooled cohorts analysis. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00016-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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3
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Crouchet E, Li S, Sojoodi M, Bandiera S, Fujiwara N, El Saghire H, Zhu S, Qian T, Rasha FA, Del Zompo F, Barrett SC, Schaeffer E, Oudot MA, Ponsolles C, Durand SC, Ghoshal S, Arora G, Giannone F, Chung RT, Slovic N, Van Renne N, Felli E, Pessaux P, Lupberger J, Pochet N, Schuster C, Tanabe KK, Hoshida Y, Fuchs BC, Baumert TF. Hepatocellular carcinoma chemoprevention by targeting the angiotensin-converting enzyme and EGFR transactivation. JCI Insight 2022; 7:159254. [PMID: 35801591 PMCID: PMC9310532 DOI: 10.1172/jci.insight.159254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/01/2022] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a leading cause of death among cirrhotic patients, for which chemopreventive strategies are lacking. Recently, we developed a simple human cell-based system modeling a clinical prognostic liver signature (PLS) predicting liver disease progression and HCC risk. In a previous study, we applied our cell-based system for drug discovery and identified captopril, an approved angiotensin converting enzyme (ACE) inhibitor, as a candidate compound for HCC chemoprevention. Here, we explored ACE as a therapeutic target for HCC chemoprevention. Captopril reduced liver fibrosis and effectively prevented liver disease progression toward HCC development in a diethylnitrosamine (DEN) rat cirrhosis model and a diet-based rat model for nonalcoholic steatohepatitis–induced (NASH-induced) hepatocarcinogenesis. RNA-Seq analysis of cirrhotic rat liver tissues uncovered that captopril suppressed the expression of pathways mediating fibrogenesis, inflammation, and carcinogenesis, including epidermal growth factor receptor (EGFR) signaling. Mechanistic data in liver disease models uncovered a cross-activation of the EGFR pathway by angiotensin. Corroborating the clinical translatability of the approach, captopril significantly reversed the HCC high-risk status of the PLS in liver tissues of patients with advanced fibrosis. Captopril effectively prevents fibrotic liver disease progression toward HCC development in preclinical models and is a generic and safe candidate drug for HCC chemoprevention.
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Affiliation(s)
- Emilie Crouchet
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Shen Li
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Mozhdeh Sojoodi
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Simonetta Bandiera
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Naoto Fujiwara
- Liver Tumor Translational Research Program, Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Hussein El Saghire
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Shijia Zhu
- Liver Tumor Translational Research Program, Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Tongqi Qian
- Liver Tumor Translational Research Program, Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Fahmida Akter Rasha
- Liver Tumor Translational Research Program, Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Fabio Del Zompo
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Stephen C Barrett
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Eugénie Schaeffer
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Marine A Oudot
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Clara Ponsolles
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Sarah C Durand
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Sarani Ghoshal
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gunisha Arora
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Fabio Giannone
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France.,Service de chirurgie viscérale et digestive, Pôle hépato-digestif, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Institut hospitalo-universitaire (IHU), Institute for Minimally Invasive Hybrid Image-Guided Surgery, Université de Strasbourg, Strasbourg, France
| | - Raymond T Chung
- Liver Center and Gastrointestinal Division, Massachusetts General Hospital
| | - Nevena Slovic
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Nicolaas Van Renne
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Emanuele Felli
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France.,Service de chirurgie viscérale et digestive, Pôle hépato-digestif, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Institut hospitalo-universitaire (IHU), Institute for Minimally Invasive Hybrid Image-Guided Surgery, Université de Strasbourg, Strasbourg, France
| | - Patrick Pessaux
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France.,Service de chirurgie viscérale et digestive, Pôle hépato-digestif, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Institut hospitalo-universitaire (IHU), Institute for Minimally Invasive Hybrid Image-Guided Surgery, Université de Strasbourg, Strasbourg, France
| | - Joachim Lupberger
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Nathalie Pochet
- Program in Translational NeuroPsychiatric Genomics, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts, USA.,Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.,Department of Neurology, Harvard Medical School, Boston, Massachusetts, USA
| | - Catherine Schuster
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France
| | - Kenneth K Tanabe
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Yujin Hoshida
- Liver Tumor Translational Research Program, Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Bryan C Fuchs
- Division of Gastrointestinal and Oncologic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas F Baumert
- Université de Strasbourg, Inserm, Institut de Recherche sur les Maladies Virales et Hépatiques UMR-S1110, Strasbourg, France.,Service de chirurgie viscérale et digestive, Pôle hépato-digestif, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
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4
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Arora G, Taneja J, Bhardwaj P, Goyal S, Naidu K, Yadav SK, Saluja D, Jetly S. Adverse events and Breakthrough infections associated with COVID-19 vaccination in the Indian population. J Med Virol 2022; 94:3147-3154. [PMID: 35261064 PMCID: PMC9088477 DOI: 10.1002/jmv.27708] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/20/2022] [Accepted: 03/05/2022] [Indexed: 11/21/2022]
Abstract
Vaccines against COVID‐19 provide immunity to deter severe morbidities associated with the infection. However, it does not prevent infection altogether in all exposed individuals. Furthermore, emerging variants of SARS‐CoV‐2 impose a threat concerning the competency of the vaccines in combating the infection. This study aims to determine the variability in adverse events and the extent of breakthrough infections in the Indian population. A retrospective study was conducted using a pre‐validated questionnaire encompassing social, demographic, general health, the status of SARS‐CoV‐2 infection, vaccination, associated adverse events, and breakthrough infections in the Indian population. Informed consent and ethical approval were obtained as per Indian Council of Medical Research (ICMR) guidelines. Participants, who provided the complete information, were Indian citizens, above 18 years, and if vaccinated, administered with either Covishield or Covaxin, were considered for the study. Data have been compiled in Microsoft Excel and analyzed for statistical differences using STATA 11. The responses from 2051 individuals fulfilling the inclusion criteria were analyzed. Among 2051, 1119 respondents were vaccinated and 932 respondents were non‐vaccinated. Among 1119 vaccinated respondents, 7 were excluded because of missing data. Therefore, out of 1112 vaccinated, 413 experienced adverse events with a major fraction of younger individuals, age 18–40 years, getting affected (74.82%; 309/413). Furthermore, considerably more females than males encountered adverse consequences to vaccination (p < 0.05). Among vaccinated participants, breakthrough infections were observed in 7.91% (88/1112; 57.96% males and 42.04% females) with the older age group, 61 years and above (odds ratio, 3.25 [1.32–8.03]; p = 0.011), and males were found to be at higher risk. Further research is needed to find the age and sex‐related factors in determining vaccine effectiveness and adverse events. Significant higher adverse events following COVID‐19 vaccination in females in comparison to males. Breakthrough infections among Indian population was found to be 7.91%. Older people and males were found to be at high risk for getting breakthrough infections.
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Affiliation(s)
- G Arora
- Delhi School of Public Health, IoE & Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi-110007
| | - J Taneja
- Zoology Department, Daulat Ram College, University of Delhi-110007
| | - P Bhardwaj
- Department of Zoology, University of Delhi-110007
| | - S Goyal
- Manav Rachna International School, Sector 14, Faridabad, Haryana, 121007
| | - K Naidu
- IPCA Laboratories Ltd., Mumbai, 400067
| | - S K Yadav
- Zoology Department, Daulat Ram College, University of Delhi-110007
| | - D Saluja
- Delhi School of Public Health, IoE & Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi-110007
| | - S Jetly
- Department of Biomedical Sciences, Acharya Narendra Dev College, University of Delhi-110019
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5
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dos Santos Ferreira D, Arora G, Gieseck RL, Rotile NJ, Waghorn PA, Tanabe KK, Wynn TA, Caravan P, Fuchs BC. Molecular Magnetic Resonance Imaging of Liver Fibrosis and Fibrogenesis Is Not Altered by Inflammation. Invest Radiol 2021; 56:244-251. [PMID: 33109919 PMCID: PMC7956154 DOI: 10.1097/rli.0000000000000737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
METHODS Three groups of mice that develop either mild type 2 inflammation and fibrosis (wild type), severe fibrosis with exacerbated type 2 inflammation (Il10-/-Il12b-/-Il13ra2-/-), or minimal fibrosis with marked type 1 inflammation (Il4ra∂/∂) after infection with S. mansoni were imaged using both probes for determination of signal enhancement. Schistosoma mansoni-infected wild-type mice developed chronic liver fibrosis. RESULTS The liver MR signal enhancement after either probe administration was significantly higher in S. mansoni-infected wild-type mice compared with naive animals. The S. mansoni-infected Il4ra∂/∂ mice presented with little liver signal enhancement after probe injection despite the presence of substantial inflammation. Schistosoma mansoni-infected Il10-/-Il12b-/-Il13ra2-/- mice presented with marked fibrosis, which correlated to increased signal enhancement after injection of either probe. CONCLUSIONS Both MR probes, EP-3533 and Gd-Hyd, were specific for fibrosis in this model of chronic liver disease regardless of the presence or severity of the underlying inflammation. These results, in addition to previous findings, show the potential application of both molecular MR probes for detection and quantification of fibrosis from various etiologies.
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Affiliation(s)
- Diego dos Santos Ferreira
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129 USA
| | - Gunisha Arora
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA 02114 USA
| | - Richard L. Gieseck
- Laboratory of Parasitic Disease, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 5601 Fishers Ln, Bethesda, MD, 20892, United States
| | - Nicholas J. Rotile
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129 USA
| | - Philip A. Waghorn
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129 USA
| | - Kenneth K. Tanabe
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA 02114 USA
| | - Thomas A. Wynn
- Laboratory of Parasitic Disease, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 5601 Fishers Ln, Bethesda, MD, 20892, United States
| | - Peter Caravan
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129 USA
- The Institute for Innovation in Imaging (i), Department of Radiology, Massachusetts General Hospital, Boston, MA 02129 USA
| | - Bryan C. Fuchs
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, MA 02114 USA
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6
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Jühling F, Hamdane N, Crouchet E, Li S, El Saghire H, Mukherji A, Fujiwara N, Oudot MA, Thumann C, Saviano A, Roca Suarez AA, Goto K, Masia R, Sojoodi M, Arora G, Aikata H, Ono A, Tabrizian P, Schwartz M, Polyak SJ, Davidson I, Schmidl C, Bock C, Schuster C, Chayama K, Pessaux P, Tanabe KK, Hoshida Y, Zeisel MB, Duong FHT, Fuchs BC, Baumert TF. Targeting clinical epigenetic reprogramming for chemoprevention of metabolic and viral hepatocellular carcinoma. Gut 2021; 70:157-169. [PMID: 32217639 PMCID: PMC7116473 DOI: 10.1136/gutjnl-2019-318918] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 03/05/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Hepatocellular carcinoma (HCC) is the fastest-growing cause of cancer-related mortality with chronic viral hepatitis and non-alcoholic steatohepatitis (NASH) as major aetiologies. Treatment options for HCC are unsatisfactory and chemopreventive approaches are absent. Chronic hepatitis C (CHC) results in epigenetic alterations driving HCC risk and persisting following cure. Here, we aimed to investigate epigenetic modifications as targets for liver cancer chemoprevention. DESIGN Liver tissues from patients with NASH and CHC were analysed by ChIP-Seq (H3K27ac) and RNA-Seq. The liver disease-specific epigenetic and transcriptional reprogramming in patients was modelled in a liver cell culture system. Perturbation studies combined with a targeted small molecule screen followed by in vivo and ex vivo validation were used to identify chromatin modifiers and readers for HCC chemoprevention. RESULTS In patients, CHC and NASH share similar epigenetic and transcriptomic modifications driving cancer risk. Using a cell-based system modelling epigenetic modifications in patients, we identified chromatin readers as targets to revert liver gene transcription driving clinical HCC risk. Proof-of-concept studies in a NASH-HCC mouse model showed that the pharmacological inhibition of chromatin reader bromodomain 4 inhibited liver disease progression and hepatocarcinogenesis by restoring transcriptional reprogramming of the genes that were epigenetically altered in patients. CONCLUSION Our results unravel the functional relevance of metabolic and virus-induced epigenetic alterations for pathogenesis of HCC development and identify chromatin readers as targets for chemoprevention in patients with chronic liver diseases.
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Affiliation(s)
- Frank Jühling
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Nourdine Hamdane
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Emilie Crouchet
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Shen Li
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Houssein El Saghire
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Atish Mukherji
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Naoto Fujiwara
- Liver Tumor Translational Research Program, Harold C. Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Marine A Oudot
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Christine Thumann
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Antonio Saviano
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France,Institut Hospitalo-Universitaire, Pôle Hépato-digestif, Nouvel Hôpital Civil, Strasbourg, France
| | - Armando Andres Roca Suarez
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Kaku Goto
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Ricard Masia
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Mozhdeh Sojoodi
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gunisha Arora
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Hiroshi Aikata
- Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Atsushi Ono
- Liver Tumor Translational Research Program, Harold C. Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas, USA,Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Parissa Tabrizian
- Recanati/Miller Transplantation Institute, Mount Sinai Medical Center, New York, New York, USA
| | - Myron Schwartz
- Recanati/Miller Transplantation Institute, Mount Sinai Medical Center, New York, New York, USA
| | - Stephen J Polyak
- Department of Global Health, University of Washington, Seattle, Washington, USA,Department of Laboratory Medicine, University of Washington, Seattle, Washington, USA
| | - Irwin Davidson
- Department of Functional Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/UDS, Illkirch, France
| | - Christian Schmidl
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria,Regensburg Centre for Interventional Immunology (RCI), Regensburg, Germany
| | - Christoph Bock
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria,Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Catherine Schuster
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Kazuaki Chayama
- Department of Gastroenterology and Metabolism, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Patrick Pessaux
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France,Institut Hospitalo-Universitaire, Pôle Hépato-digestif, Nouvel Hôpital Civil, Strasbourg, France
| | - Kenneth K Tanabe
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Yujin Hoshida
- Liver Tumor Translational Research Program, Harold C. Simmons Comprehensive Cancer Center, Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Mirjam B Zeisel
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France,Inserm U1052, CNRS UMR 5286, Centre Léon Bérard, Cancer Research Center of Lyon (CRCL), Université de Lyon (UCBL), Lyon, France
| | - François HT Duong
- Université de Strasbourg, Strasbourg, France,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France
| | - Bryan C Fuchs
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas F Baumert
- Université de Strasbourg, Strasbourg, France .,Inserm, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France.,Institut Hospitalo-Universitaire, Pôle Hépato-digestif, Nouvel Hôpital Civil, Strasbourg, France.,Institut Universitaire de France (IUF), Paris, France
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7
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Dasukil S, Arora G, Shetty S, Degala S. Impact of prolotherapy in temporomandibular joint disorder: a quality of life assessment. Br J Oral Maxillofac Surg 2020; 59:599-604. [PMID: 33750579 DOI: 10.1016/j.bjoms.2020.10.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/18/2020] [Indexed: 11/28/2022]
Abstract
Chronic pain and functional impairment associated with temporomandibular joint (TMJ) disorders (TMD) considerably reduce oral health-related quality of life (OHRQoL). In the present study we have assessed the influence of prolotherapy in patients with TMD by the subjective measurement of QoL using the Oral Health Impact Profile-14 (OHIP-14). Twenty-five patients diagnosed with TMD (mean (range) age 38 (18 - 70) years) were included. They had all undergone dextrose prolotherapy to the TMJ at regular time intervals (four times at intervals of two weeks) using the method suggested by Hemwall-Hackett. They were asked to answer the OHIP-14 questionnaire before and two years after prolotherapy. Seven domains of OHRQoL were rated on a 5-point Likert scale from 0 (never) to 4 (very often). Domain scores and total OHIP-14 scores were compared using inferential statistics (chi squared and Wilcoxon signed rank tests). Prolotherapy was effective over time, as all the domains' mean scores decreased considerably after treatment. The total mean score before prolotherapy was 21.20, which was extensively reduced to 13.08 after prolotherapy (p=0.001). There was statistically significant improvement in all domains, including functional limitation, physical pain, psychological discomfort, physical disability, psychological disability, social disability, and handicap (p≤0.005 in all cases). We concluded that prolotherapy has a promising role in the improvement of OHRQoL of patients with TMD, and its beneficial effects persist at least two years after treatment.
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Affiliation(s)
- S Dasukil
- Department of Oral & Maxillofacial Surgery, All India Institute of Medical Sciences(AIIMS), Bhubaneswar, Odisha, India.
| | - G Arora
- Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, SGT University, Gurugram.
| | - S Shetty
- Department of Oral and Maxillofacial Surgery, JSS Dental College and Hospital, Mysore.
| | - S Degala
- Department of Oral and Maxillofacial Surgery, JSS Dental College and Hospital, Mysore.
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Erstad DJ, Sojoodi M, Taylor MS, Jordan VC, Farrar CT, Axtell AL, Rotile NJ, Jones C, Graham-O'Regan KA, Ferreira DS, Michelakos T, Kontos F, Chawla A, Li S, Ghoshal S, Chen YCI, Arora G, Humblet V, Deshpande V, Qadan M, Bardeesy N, Ferrone CR, Lanuti M, Tanabe KK, Caravan P, Fuchs BC. Fibrotic Response to Neoadjuvant Therapy Predicts Survival in Pancreatic Cancer and Is Measurable with Collagen-Targeted Molecular MRI. Clin Cancer Res 2020; 26:5007-5018. [PMID: 32611647 DOI: 10.1158/1078-0432.ccr-18-1359] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 04/05/2019] [Accepted: 06/26/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE To evaluate the prognostic value of posttreatment fibrosis in human PDAC patients, and to compare a type I collagen targeted MRI probe, CM-101, to the standard contrast agent, Gd-DOTA, for their abilities to identify FOLFIRINOX-induced fibrosis in a murine model of PDAC. EXPERIMENTAL DESIGN Ninety-three chemoradiation-treated human PDAC samples were stained for fibrosis and outcomes evaluated. For imaging, C57BL/6 and FVB mice were orthotopically implanted with PDAC cells and FOLFIRINOX was administered. Mice were imaged with Gd-DOTA and CM-101. RESULTS In humans, post-chemoradiation PDAC tumor fibrosis was associated with longer overall survival (OS) and disease-free survival (DFS) on multivariable analysis (OS P = 0.028, DFS P = 0.047). CPA increased the prognostic accuracy of a multivariable logistic regression model comprised of previously established PDAC risk factors [AUC CPA (-) = 0.76, AUC CPA (+) = 0.82]. In multiple murine orthotopic PDAC models, FOLFIRINOX therapy reduced tumor weight (P < 0.05) and increased tumor fibrosis by collagen staining (P < 0.05). CM-101 MR signal was significantly increased in fibrotic tumor regions. CM-101 signal retention was also increased in the more fibrotic FOLFIRINOX-treated tumors compared with untreated controls (P = 0.027), consistent with selective probe binding to collagen. No treatment-related differences were observed with Gd-DOTA imaging. CONCLUSIONS In humans, post-chemoradiation tumor fibrosis is associated with OS and DFS. In mice, our MR findings indicate that translation of collagen molecular MRI with CM-101 to humans might provide a novel imaging technique to monitor fibrotic response to therapy to assist with prognostication and disease management.
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Affiliation(s)
- Derek J Erstad
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
| | - Mozhdeh Sojoodi
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Martin S Taylor
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Veronica Clavijo Jordan
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Christian T Farrar
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Andrea L Axtell
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Nicholas J Rotile
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Chloe Jones
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Katherine A Graham-O'Regan
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Diego S Ferreira
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Theodoros Michelakos
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Filippos Kontos
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Akhil Chawla
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Shen Li
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Sarani Ghoshal
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Yin-Ching Iris Chen
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Gunisha Arora
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Vikram Deshpande
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Motaz Qadan
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Nabeel Bardeesy
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Cristina R Ferrone
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Michael Lanuti
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Kenneth K Tanabe
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
| | - Peter Caravan
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts.,Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Bryan C Fuchs
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
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Zhou IY, Clavijo Jordan V, Rotile NJ, Akam E, Krishnan S, Arora G, Krishnan H, Slattery H, Warner N, Mercaldo N, Farrar CT, Wellen J, Martinez R, Schlerman F, Tanabe KK, Fuchs BC, Caravan P. Advanced MRI of Liver Fibrosis and Treatment Response in a Rat Model of Nonalcoholic Steatohepatitis. Radiology 2020; 296:67-75. [PMID: 32343209 DOI: 10.1148/radiol.2020192118] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Liver biopsy is the reference standard to diagnose nonalcoholic steatohepatitis (NASH) but is invasive with potential complications. Purpose To evaluate molecular MRI with type 1 collagen-specific probe EP-3533 and allysine-targeted fibrogenesis probe Gd-Hyd, MR elastography, and native T1 to characterize fibrosis and to assess treatment response in a rat model of NASH. Materials and Methods MRI was performed prospectively (June-November 2018) in six groups of male Wistar rats (a) age- and (b) weight-matched animals received standard chow (n = 12 per group); (c) received choline-deficient, l-amino acid-defined, high-fat diet (CDAHFD) for 6 weeks or (d) 9 weeks (n = 8 per group); (e) were fed 6 weeks of CDAHFD and switched to standard chow for 3 weeks (n = 12); (f) were fed CDAHFD for 9 weeks with daily treatment of elafibranor beginning at week 6 (n = 14). Differences in imaging measurements and tissue analyses among groups were tested with one-way analysis of variance. The ability of each imaging measurement to stage fibrosis was quantified by using area under the receiver operating characteristic curve (AUC) with quantitative digital pathology (collagen proportionate area [CPA]) as reference standard. Optimal cutoff values for distinguishing advanced fibrosis were used to assess treatment response. Results AUC for distinguishing fibrotic (CPA >4.8%) from nonfibrotic (CPA ≤4.8%) livers was 0.95 (95% confidence interval [CI]: 0.91, 1.00) for EP-3533, followed by native T1, Gd-Hyd, and MR elastography with AUCs of 0.90 (95% CI: 0.83, 0.98), 0.84 (95% CI: 0.74, 0.95), and 0.65 (95% CI: 0.51, 0.79), respectively. AUCs for discriminating advanced fibrosis (CPA >10.3%) were 0.86 (95% CI: 0.76, 0.97), 0.96 (95% CI: 0.90, 1.01), 0.84 (95% CI: 0.70, 0.98), and 0.74 (95% CI: 0.63, 0.86) for EP-3533, Gd-Hyd, MR elastography, and native T1, respectively. Gd-Hyd MRI had the highest accuracy (24 of 26, 92%; 95% CI: 75%, 99%) in identifying responders and nonresponders in the treated groups compared with MR elastography (23 of 26, 88%; 95% CI: 70%, 98%), EP-3533 (20 of 26, 77%; 95% CI: 56%, 91%), and native T1 (14 of 26, 54%; 95% CI: 33%, 73%). Conclusion Collagen-targeted molecular MRI most accurately detected early onset of fibrosis, whereas the fibrogenesis probe Gd-Hyd proved most accurate for detecting treatment response. © RSNA, 2020 Online supplemental material is available for this article.
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Affiliation(s)
- Iris Y Zhou
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Veronica Clavijo Jordan
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Nicholas J Rotile
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Eman Akam
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Smitha Krishnan
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Gunisha Arora
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Hema Krishnan
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Hannah Slattery
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Noah Warner
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Nathaniel Mercaldo
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Christian T Farrar
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Jeremy Wellen
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Robert Martinez
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Franklin Schlerman
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Kenneth K Tanabe
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Bryan C Fuchs
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
| | - Peter Caravan
- From the Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Institute for Innovation in Imaging (I.Y.Z., V.C.J., N.J.R., E.A., H.K., H.S., N.W., C.T.F., P.C.), Division of Surgical Oncology (S.K., G.A., K.K.T., B.C.F.), and Institute for Technology Assessment, Department of Radiology (N.M.), Massachusetts General Hospital and Harvard Medical School, Charlestown, 149 13th St, Boston, MA 02129; and Pfizer, Cambridge, Mass (J.W., R.M., F.S.)
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Arora G, Sahni N. Anesthetic management of a patient with Sheehan's syndrome and twin pregnancy while undergoing a cesarean section. J Postgrad Med 2020; 66:51-53. [PMID: 31929313 PMCID: PMC6970334 DOI: 10.4103/jpgm.jpgm_473_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Sheehan's syndrome (SS) is caused by infarction of the pituitary gland usually precipitated by hypotension due to massive uterine hemorrhage during the peripartum period. Once SS develops, it becomes a major comorbidity for the young females and predisposes them to further medical, obstetric, and anesthetic complications. Herein, we report the perioperative anesthetic management of a 28-year-old female, already diagnosed with SS precipitated by urosepsis and septicemic shock in a previous pregnancy, now presenting with twin pregnancy for elective cesarean section. Her magnetic resonance imaging brain revealed pituitary apoplexy and she had hypothyroidism with gestational diabetes mellitus. The overall successful perioperative management of the patient is described along with an emphasis on aggressive management of hypotension due to any cause in the peripartum period to prevent infarction/necrosis of anterior pituitary gland.
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Affiliation(s)
- G Arora
- Department of Anesthesia and Intensive Care, PGIMER, Chandigarh, India
| | - N Sahni
- Department of Anesthesia and Intensive Care, PGIMER, Chandigarh, India
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Arora G, Degala S, Dasukil S. Efficacy of buffered local anaesthetics in head and neck infections. Br J Oral Maxillofac Surg 2019; 57:857-860. [PMID: 31563483 DOI: 10.1016/j.bjoms.2019.06.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 06/20/2019] [Indexed: 10/25/2022]
Abstract
Lignocaine is one of the most commonly-used agents to anaesthetise an area preoperatively. It can, however, cause undesirable effects such as burning on injection, relatively slow onset, and unreliable, or lack of, numbness when injected into infected tissues as a result of the acidic pH of commercial preparations (the pH is between 3.5 and 7.0 compared with the physiological pH, which is between 7.35 and 7.45). The aim of this comparative study was to evaluate the efficacy of buffered local anaesthetic on infected areas by altering the pH with 8.4% sodium bicarbonate, to measure the pain before and after the injection, and to record the time of onset of anaesthesia. All 60 patients were given 2% lignocaine hydrochloride with adrenaline 1:80,000 and 30 patients were randomly allocated to have 10:1 dilution of 8.4% sodium bicarbonate (study group). Pain was assessed on a visual analogue scale and a verbal rating scale. There was a significant difference in the amount of pain between control and study groups (p=0.025). The mean (SD) time (minutes) to onset of local anaesthesia in the study group was 1.06 (0.25) compared with 2.96 (0.81) in the control group (p<0.001). Our results confirm the efficacy of the buffered local anaesthetic solution in reducing pain on injection and resulting in quicker onset of anaesthesia. Increasing the pH of lignocaine solutions with bicarbonate immediately before use, therefore, should be considered when treating various acute infections of the head and neck.
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Affiliation(s)
- G Arora
- Department of Oral and Maxillofacial surgery, JSS Dental College and Hospital, Mysore.
| | - S Degala
- Department of Oral and Maxillofacial surgery, JSS Dental College and Hospital, Mysore.
| | - S Dasukil
- Department of Oral and Maxillofacial surgery, JSS Dental College and Hospital, Mysore.
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Li S, Ghoshal S, Sojoodi M, Arora G, Masia R, Erstad DJ, Ferriera DS, Li Y, Wang G, Lanuti M, Caravan P, Or YS, Jiang LJ, Tanabe KK, Fuchs BC. The farnesoid X receptor agonist EDP-305 reduces interstitial renal fibrosis in a mouse model of unilateral ureteral obstruction. FASEB J 2019; 33:7103-7112. [PMID: 30884252 PMCID: PMC8793835 DOI: 10.1096/fj.201801699r] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 02/14/2019] [Indexed: 08/15/2023]
Abstract
Farnesoid X receptor (FXR) is a nuclear receptor that has emerged as a key regulator in the maintenance of hepatic steatosis, inflammation, and fibrosis. However, the role of FXR in renal fibrosis remains to be established. Here, we investigate the effects of the FXR agonist EDP-305 in a mouse model of tubulointerstitial fibrosis via unilateral ureteral obstruction (UUO). Male C57Bl/6 mice received a UUO on their left kidney. On postoperative d 4, mice received daily treatment by oral gavage with either vehicle control (0.5% methylcellulose) or 10 or 30 mg/kg EDP-305. All animals were euthanized on postoperative d 12. EDP-305 dose-dependently decreased macrophage infiltration as measured by the F4/80 staining area and proinflammatory cytokine gene expression. EDP-305 also dose-dependently reduced interstitial fibrosis as assessed by morphometric quantification of the collagen proportional area and kidney hydroxyproline levels. Finally, yes-associated protein (YAP) activation, a major driver of fibrosis, increased after UUO injury and was diminished by EDP-305 treatment. Consistently, EDP-305 decreased TGF-β1-induced YAP nuclear localization in human kidney 2 cells by increasing inhibitory YAP phosphorylation. YAP inhibition may be a novel antifibrotic mechanism of FXR agonism, and EDP-305 could be used to treat renal fibrosis.-Li, S., Ghoshal, S., Sojoodi, M., Arora, G., Masia, R., Erstad, D. J., Ferriera, D. S., Li, Y., Wang, G., Lanuti, M., Caravan, P., Or, Y. S., Jiang, L.-J., Tanabe, K. K., Fuchs, B. C. The farnesoid X receptor agonist EDP-305 reduces interstitial renal fibrosis in a mouse model of unilateral ureteral obstruction.
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Affiliation(s)
- Shen Li
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Sarani Ghoshal
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Mozhdeh Sojoodi
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Gunisha Arora
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Ricard Masia
- Department of PathologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Derek J. Erstad
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Diego S. Ferriera
- Martinos Center for Biomedical ImagingMassachusetts General HospitalHarvard Medical SchoolCharlestownMassachusettsUSA
| | - Yang Li
- Enanta PharmaceuticalsWatertownMassachusettsUSA
| | | | - Michael Lanuti
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Peter Caravan
- Institute for Innovation in ImagingMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
- Martinos Center for Biomedical ImagingMassachusetts General HospitalHarvard Medical SchoolCharlestownMassachusettsUSA
| | - Yat Sun Or
- Enanta PharmaceuticalsWatertownMassachusettsUSA
| | | | - Kenneth K. Tanabe
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Bryan C. Fuchs
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
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Li S, Ghoshal S, Arora G, Erstad DJ, Sojoodi M, Lanuti M, Hoshida Y, Baumert T, Tanabe KK, Fuchs BC. Abstract 4004: The H2 receptor antagonist nizatidine inhibits carcinogenesis in two rodent models of hepatocellular carcinoma. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-4004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: The purpose of this study was to examine whether nizatidine could reduce liver fibrosis and subsequent tumor burden in two rodent models of hepatocellular carcinoma (HCC).
Methods: An in silico screen identified nizatidine as a compound that can reverse a previously identified gene signature associated with disease progression and HCC development in human cirrhosis patients. We tested the ability of nizatidine to inhibit HCC development in two rodent models. In the first study, male Wistar rats received weekly intraperitoneal injections of 50 mg/kg diethylnitrosamine (DEN). This model has previously been shown to reliably recapitulate the histologic and molecular features of human HCC development including fibrosis after 8 weeks, cirrhosis after 12 weeks, and HCC by 18 weeks. DEN-injured rats were randomized to receive oral gavage of nizatidine (n=7) or vehicle control (n=9) after 8 weeks. In the second study, male C57BL/6J mice received a single intraperitoneal injection of 25 mg/kg DEN at day 15 followed by initiation of a choline-deficient, L-amino acid-defined, high-fat diet (CDAHFD) at 6 weeks of age. DEN+CDAHFD-injured mice were randomized to receive oral gavage of nizatidine (n=7) or vehicle control (n=9) at 12 weeks of age and were sacrificed at 30 weeks of age after development of HCC in the setting of nonalcoholic steatohepatitis (NASH).
Results: As expected, repeated injections of DEN in rats resulted in progressive fibrosis followed by HCC formation. Treatment with nizatidine resulted in a 35% reduction of tumor nodules relative to vehicle controls (p<0.18). Liver sections were stained by picrosirius red to assess fibrosis and nizatidine reduced collagen deposition in DEN-injured rats (collagen proportional area = 5±0.03 vs. 9.2±0.04; p<0.05). This histologic observation was further confirmed by gene expression analysis with reduction in several profibrotic markers, such as alpha-smooth muscle actin and collagen type I, after treatment with nizatidine. All mice receiving DEN+CDAHFD developed HCC. Treatment with nizatidine resulted in a 60% reduction in tumor nodules relative to vehicle controls (p<0.0001). Nizatidine treatment also resulted in a significant reduction in liver to body weight (p<0.01). Nizatidine treatment reduced collagen proportional area (11±0.05 vs. 15±.01; p<0.05) and expression of profibrotic markers. Nizatidine treatment also reduced the expression of several proinflammatory markers including CD68, interferon gamma, and interleukin-6.
Conclusion: Our data suggest that the H2 receptor antagonist nizatidine reduces fibrosis and subsequent HCC development. This could be beneficial in patient management given the low cost and ready availability of this agent.
Citation Format: Shen Li, Sarani Ghoshal, Gunisha Arora, Derek J. Erstad, Mozhdeh Sojoodi, Michael Lanuti, Yujin Hoshida, Thomas Baumert, Kenneth K. Tanabe, Bryan C. Fuchs. The H2 receptor antagonist nizatidine inhibits carcinogenesis in two rodent models of hepatocellular carcinoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 4004.
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Affiliation(s)
- Shen Li
- 1Massachusetts General Hospital, Boston, MA
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Venkatraman A, Hardas S, Patel N, Singh Bajaj N, Arora G, Arora P. Galectin-3: an emerging biomarker in stroke and cerebrovascular diseases. Eur J Neurol 2017; 25:238-246. [PMID: 29053903 DOI: 10.1111/ene.13496] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/16/2017] [Indexed: 01/16/2023]
Abstract
The carbohydrate-binding molecule galectin-3 has garnered significant attention recently as a biomarker for various conditions ranging from cardiac disease to obesity. Although there have been several recent studies investigating its role in stroke and other cerebrovascular diseases, awareness of this emerging biomarker in the wider neurology community is limited. We performed a systematic search in PubMed, Embase, Scopus, CINAHL, Clinicaltrials.gov and the Cochrane library in November and December 2016 for articles related to galectin-3 and cerebrovascular disease. We included both human and pre-clinical studies in order to provide a comprehensive view of the state of the literature on this topic. The majority of the relevant literature focuses on stroke, cerebral ischemia and atherosclerosis, but some recent attention has also been devoted to intracranial and subarachnoid hemorrhage. Higher blood levels of galectin-3 correlate with worse outcomes in atherosclerotic disease as well as in intracranial and subarachnoid hemorrhage in human studies. However, experimental evidence supporting the role of galectin-3 in these phenotypes is not as robust. It is likely that the role of galectin-3 in the inflammatory cascade within the central nervous system following injury is responsible for many of its effects, but its varied physiological functions and multiple sites of expression mean that it may have different effects depending on the nature of the disease condition and the time since injury. In summary, experimental and human research raises the possibility that galectin-3, which is closely linked to the inflammatory cascade, could be of value as a prognostic marker and therapeutic target in cerebrovascular disease.
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Affiliation(s)
- A Venkatraman
- Department of Neurology, Massachusetts General Hospital/Brigham and Women's Hospital/Harvard Medical School, Boston, MA
| | - S Hardas
- Division of Cardiology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - N Patel
- Division of Cardiology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - N Singh Bajaj
- Division of Cardiology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - G Arora
- Division of Cardiology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - P Arora
- Division of Cardiology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL.,Section of Cardiology, Birmingham Veterans Affairs Medical Center, Birmingham, AL, USA
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Farrar CT, Gale EM, Kennan R, Ramsay I, Masia R, Arora G, Looby K, Wei L, Kalpathy-Cramer J, Bunzel MM, Zhang C, Zhu Y, Akiyama TE, Klimas M, Pinto S, Diyabalanage H, Tanabe KK, Humblet V, Fuchs BC, Caravan P. CM-101: Type I Collagen-targeted MR Imaging Probe for Detection of Liver Fibrosis. Radiology 2017; 287:581-589. [PMID: 29156148 DOI: 10.1148/radiol.2017170595] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Purpose To evaluate the biodistribution, metabolism, and pharmacokinetics of a new type I collagen-targeted magnetic resonance (MR) probe, CM-101, and to assess its ability to help quantify liver fibrosis in animal models. Materials and Methods Biodistribution, pharmacokinetics, and stability of CM-101 in rats were measured with mass spectrometry. Bile duct-ligated (BDL) and sham-treated rats were imaged 19 days after the procedure by using a 1.5-T clinical MR imaging unit. Mice were treated with carbon tetrachloride (CCl4) or with vehicle two times a week for 10 weeks and were imaged with a 7.0-T preclinical MR imaging unit at baseline and 1 week after the last CCl4 treatment. Animals were imaged before and after injection of 10 µmol/kg CM-101. Change in contrast-to-noise ratio (ΔCNR) between liver and muscle tissue after CM-101 injection was used to quantify liver fibrosis. Liver tissue was analyzed for Sirius Red staining and hydroxyproline content. The institutional subcommittee for research animal care approved all in vivo procedures. Results CM-101 demonstrated rapid blood clearance (half-life = 6.8 minutes ± 2.4) and predominately renal elimination in rats. Biodistribution showed low tissue gadolinium levels at 24 hours (<3.9% injected dose [ID]/g ± 0.6) and 10-fold lower levels at 14 days (<0.33% ID/g ± 12) after CM-101 injection with negligible accumulation in bone (0.07% ID/g ± 0.02 and 0.010% ID/g ± 0.004 at 1 and 14 days, respectively). ΔCNR was significantly (P < .001) higher in BDL rats (13.6 ± 3.2) than in sham-treated rats (5.7 ± 4.2) and in the CCl4-treated mice (18.3 ± 6.5) compared with baseline values (5.2 ± 1.0). Conclusion CM-101 demonstrated fast blood clearance and whole-body elimination, negligible accumulation of gadolinium in bone or tissue, and robust detection of fibrosis in rat BDL and mouse CCl4 models of liver fibrosis. © RSNA, 2017 Online supplemental material is available for this article.
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Affiliation(s)
- Christian T Farrar
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Eric M Gale
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Richard Kennan
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Ian Ramsay
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Ricard Masia
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Gunisha Arora
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Kailyn Looby
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Lan Wei
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Jayashree Kalpathy-Cramer
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Michelle M Bunzel
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Chunlian Zhang
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Yonghua Zhu
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Taro E Akiyama
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Michael Klimas
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Shirly Pinto
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Himashinie Diyabalanage
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Kenneth K Tanabe
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Valerie Humblet
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Bryan C Fuchs
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
| | - Peter Caravan
- From the Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth St, Suite 2301, Charlestown, MA 02129 (C.T.F., E.M.G., I.R., J.K., P.C.); Merck Research Laboratories, Kenilworth, NJ (R.K., M.M.B., C.Z., Y.Z., T.E.A., M.K., S.P.); Collagen Medical, Belmont, Mass (I.R., H.D., V.H.); Departments of Pathology (R.M.) and Surgical Oncology (G.A., K.L., L.W., K.K.T., B.C.F.), Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Mass; and Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Mass (P.C.)
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Li S, Ghoshal S, Arora G, Erstad DJ, Lanuti M, Tanabe KK, Fuchs BC. Abstract 5248: Pioglitazone prevents hepatocellular carcinoma development in a rat model of cirrhosis. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-5248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Advanced hepatocellular carcinoma (HCC) is a leading cause of mortality worldwide with limited treatment options. There is a readily identifiable cohort of cirrhosis patients at risk and they are ideal candidates for chemoprevention. Anti-hyperglycemic agents have garnered interest for their potential anti-fibrotic as well as chemo-preventive effects. Pioglitazone, a selective PPAR-γ agonist, has been shown to reduce non-alcoholic steatohepatitis (NASH), but its role as an anti-fibrotic and chemopreventive agent has yet to be elucidated. The hypothesis of this study is that Pioglitazone reduces cirrhosis and subsequent HCC development in rats with diethylnitrosamine (DEN)-induced cirrhosis.
Methods: Male Wistar received DEN 50mg/kg by intraperitoneal injection. DEN injury reliably recapitulates histological and molecular features of human HCC development with induction of hepatic fibrosis at 8 weeks, cirrhosis at 12 weeks, and HCC by 18 weeks. DEN-injured rats were randomized to receive oral gavage of pioglitazone at 3mg/kg/day (n=9) or vehicle control (n=9). Initiation of pioglitazone coincided with the development of liver fibrosis at 8 weeks. All animals were sacrificed at 18 weeks.
Results: As expected, repeated injections of DEN in rats resulted in progressive fibrosis, cirrhosis, followed by HCC formation. Treatment with pioglitazone resulted in a 56% reduction of surface nodules relative to treatment with vehicle (7.4±4.9 vs. 17±7; p<0.005). Liver sections were stained by picrosirius red to assess fibrosis and pioglitazone significantly reduced collagen deposition in DEN-injured rats (collagen proportional area = 3.2±1.8% vs. 9.2±2%; p<0.035). This histologic observation was further confirmed by gene expression analysis with reductions in collagen-I, α-smooth muscle actin, and transforming growth factor beta in rats treated with pioglitazone. Finally, weekly injection of DEN also caused a significant decrease in overall body weight in comparison to untreated rats (398.1±60 vs. 598±46 grams; p<0.015), and pioglitazone treatment resulted in a trend for better protection of body weight relative to vehicle (398.1±60 vs. 427.5±56.3 grams).
Conclusion: Overall our data supports the hypothesis that the anti-diabetic agent pioglitazone may be repurposed as a drug to reduce fibrosis and prevent HCC. This could be beneficiary in patient management given the low cost as well as minimal side effects.
Citation Format: Shen Li, Sarani Ghoshal, Gunisha Arora, Derek J. Erstad, Michael Lanuti, Kenneth K. Tanabe, Bryan C. Fuchs. Pioglitazone prevents hepatocellular carcinoma development in a rat model of cirrhosis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 5248. doi:10.1158/1538-7445.AM2017-5248
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Affiliation(s)
- Shen Li
- Massachusetts General Hospital, Boston, MA
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Panda SK, Panda P, Baisakh P, Mohanty B, Arora G. Study of cardiac functions in diabetes mellitus-2 patients. J ANAT SOC INDIA 2016. [DOI: 10.1016/j.jasi.2016.08.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Arora G, Fimmel C, Wright L, Bode B. Hepatocyte‐specific GOLM1 Knockout Mice and Human Hepatocellular Carcinoma Cell Lines Provide Insights into Potential Roles for the GOLM1 HCC Serum Biomarker. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1000.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gunisha Arora
- Biological SciencesNorthern Illinois UniversityDeKalbIllinoisUnited States
| | - Claus Fimmel
- Internal Medicine/GastroenterologyLoyola University and Edward Hines VA Medical CenterMaywoodILUnited States
| | - Lorinda Wright
- Internal Medicine/GastroenterologyLoyola University and Edward Hines VA Medical CenterMaywoodILUnited States
| | - Barrie Bode
- Biological SciencesNorthern Illinois UniversityDeKalbIllinoisUnited States
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Arora G, Coller R, Hoffman R, Thakur S, Perkins K, Miller L, Wells T. Promoting cultural sensitivity and ethics in the next generation of
physicians using interactive cases. Ann Glob Health 2014. [DOI: 10.1016/j.aogh.2014.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Khanna T, El-Arousy H, Thakur N, Khanna R, Arora G. The Value of Positron Emission Mammography (PEM) in Management of Breast Cancer. Pract Radiat Oncol 2014; 3:S24. [PMID: 24674523 DOI: 10.1016/j.prro.2013.01.086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T Khanna
- Radiological Institute of The Villages, The Villages, FL
| | - H El-Arousy
- Radiological Institute of The Villages, The Villages, FL
| | - N Thakur
- Radiological Institute of The Villages, The Villages, FL
| | - R Khanna
- Radiological Institute of The Villages, The Villages, FL
| | - G Arora
- Radiological Institute of The Villages, The Villages, FL
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Affiliation(s)
- N Thosani
- Department of Internal Medicine, University of Texas Health Science Center at Houston, Texas 77030, USA.
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Abstract
Background: The ABO blood group antigens are present on the surface of red blood cells and various epithelial cells. As the majority of human cancers are derived from epithelial cells, changes in blood group antigens constitute an important aspect of human cancers. The aim of the study was to establish clinical usefulness of ABO blood group as a predisposing factor in early diagnosis and management of patients with oral precancerous lesions/conditions. Materials and Methods: The study sample consisted of 50 control and 50 oral precancer (25 leukoplakia and 25 Oral Submucous Fibrosis) confirmed by histopathologic examination. All samples were subjected to blood group testing and their prevalence was compared by Z-test using STATA version 8. Results: The "A" blood group was prevalent among the precancerous group. Significant differences on prevalences of blood groups were found (P < 0.05) between control versus leukoplakia and OSMF. Interestingly, 24% gutka chewers who had higher number of grades of dysplasia were falling in "A" blood group. Conclusion: Blood group type should be considered along with other risk factors to understand the individual patient's risk and further studies in larger samples with inclusion of Rh factor is needed to elucidate the relationship with ABO blood group types.
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Affiliation(s)
- S Bhateja
- Department of Oral Medicine Diagnosis and Radiology, Dr. DY Patil Dental College and Hospital, Pune, Maharashtra, India
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Singh G, Arora G, Mannalithara A, Mithal A, Sehgal A, Triadafilopoulos G. Alarmingly poor adherence to low-dose aspirin: a large population-based study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p2522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Giridhar M, Arora G, Lajpal K, Singh Chahal K. Clinicohistopathological concordance in leprosy - a clinical, histopathological and bacteriological study of 100 cases. Indian J Lepr 2012; 84:217-225. [PMID: 23484336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Leprosy is a treatable chronic infectious disease, prevalent in South Asian countries, especially India. Before labeling a patient as a case of leprosy and starting multidrug treatment for particular type, the clinical findings should be correlated and confirmed with histopathological examination and bacteriological index of skin biopsy. Skin biopsy is an important tool in diagnosing leprosy and determining the type of leprosy. In the present study, one hundred untreated clinically diagnosed cases of leprosy were studied according to Ridley-Jopling scale for confirmation of diagnosis and classification of leprosy. The study was done by routine H & E (Haematoxylin & Eosin) staining and Fite-Faraco's staining for acid-fast bacillus. The data pertaining to age, sex, clinical and histopathological classification of the type of leprosy were collected and analyzed. In analyzing the histopathology of a lesion, special attention was given to the following features, viz., invasion of the epidermis with or without erosion, involvement of the sub-epidermal zone, character and extent of granuloma, density of lymphocytic infiltrate epithelioid cells and other cellular elements, nerve involvement and the presence of Mycobacterium leprae. Histological diagnosis of leprosy was established in 98% of clinically diagnosed cases. Clinicohistopathological concordance was maximum in LL(93.75%) followed by BL(87.5%), TT(78.5%), BT(73.8%) and least in IL(27.78%). Overall, it was 60.23%. Indeterminate type of leprosy was diagnosed more on histologythan on clinical evaluation.
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Affiliation(s)
- M Giridhar
- Department of Pathology, Maharaja Agarsen Medical College, Agroha, Hisar, Haryana.
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Arora G, Mishra SK, Nautiyal B, Pratap SO, Gupta A, Beura CK, Singh DP. Genetics of hyperpigmentation associated with the Fibromelanosis gene (Fm) and analysis of growth and meat quality traits in crosses of native Indian Kadaknath chickens and non-indigenous breeds. Br Poult Sci 2012; 52:675-85. [PMID: 22221233 DOI: 10.1080/00071668.2011.635637] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
1. The study investigated the extent of hyperpigmentation (a trait fixed in native Indian Kadaknath chickens), bodyweight, carcase quality and leanness at 12 weeks of age in F(1) and back-crosses of Kadaknath with White Leghorn, White Plymouth Rock and Aseel Peela chickens. 2. The objective of the study was to determine if hyperpigmentation was affected by the major gene Fibromelanosis (Fm) and to evaluate the effects of different proportions of Kadaknath genes on growth and carcase quality. 3. The pigmentation pattern of skin indicated that Fm behaved as the primary locus affecting dermal-hyperpigmentation and that the sex-linked Id locus produced an epistatic effect. 4. The results suggested that variable allelic forms of Id were acting in different crosses, which resulted in variation in melanosis of the host. However, no conclusive pattern for shank pigmentation could be explained through genotyping of the Id and Fm loci. 5. Analysis of quantitative traits indicated the positive impact of a Kadaknath genomic proportion of 50% or more on meat texture and carcase leanness. Improvement in leanness occurred in White Rock crosses but not in White Leghorn and Aseel Peela crosses. 6. Thigh-meat texture was influenced more by enhanced Kadaknath genomic proportions than the breast-meat. It was concluded that introgression of Kadaknath genomic proportion beyond 50% in a cross with meat-type chickens, irrespective of the impact Fm, brought improvement in meat quality whereas no such advantage was obtained for growth traits. 7. The beneficial impact of the Kadaknath genome on meat quality calls for further studies to identify causative genes for their selective use to improve meat quality in Kadaknath crossbred chickens.
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Affiliation(s)
- G Arora
- Central Avian Research Institute , Izatnagar , Bareilly , India-243122.
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Arora G, Flores R, Wright L, Fimmel CJ, Bode BP. Abstract 1323: Liver-specific knockout mice and liver-derived cell lines provide insights into potential roles for the GP73/GOLM1 HCC serum biomarker - association with sustained cell proliferation. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-1323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Golgi Protein-73kDa (GP73/GOLM1) is a resident cis Golgi Type II membrane protein that is nearly undetectable in normal liver, but whose expression is upregulated in hepatocellular carcinoma (HCC) and whose circulating levels increase in the plasma of patients with chronic liver disease and HCC. As such, it is the subject of ongoing clinical trials investigating its use as a serum biomarker for HCC. GP73/GOLM1 is cleaved by a proprotein convertase and secreted by proliferating cells, an activity possibly elevated in cancer, yet its biological role in the liver and in the pathogenesis of HCC remains unclear. In order to investigate possible biological roles for GP73/GOLM1, liver-specific knockout mice (C57BL/6) were generated using the Cre-loxP system, characterized by a “floxed” GOLM1 gene and Cre recombinase driven by the albumin promoter. GP73/GOLM1 Cre+/−genotypes were confirmed by PCR analysis. GP73/GOLM1Fl/Fl/Cre(+) animals showed no obvious biological phenotype compared to their Cre(-) littermates, and exhibited normal growth, behavior, and successful mating, suggesting that hepatic GP73/GOLM1 is not vital for normal physiological function, as might be hypothesized from its normally low expression in the liver. Previous studies indicated that GP73/GOLM1 expression was not upregulated in post-hepatectomy liver regeneration, suggesting that its activated expression in the liver is linked to inflammatory or carcinogenic processes rather than transiently increased mitosis. Examination of GP73/GOLM1 expression in 14 human HCC cell lines revealed similar expression levels in epithelial and mesenchymal cell lines, and in an SV40-transformed nontumorigenic human liver epithelial cell line. Rodent in vitro models of hepatocellular transformation revealed equal GP73/GOLM1 expression levels in nontumorigenic parent cell lines and their transformed tumorigenic derivatives. Collectively, the data from the in vivo and in vitro models thus far do not support a direct association of GP73/GOLM1 expression with liver mitogenesis or differentiation, but rather suggest that its expression may be linked to a sustained commitment to cell proliferation - such as occurs in cell lines, liver disease and cancerous transformation, promoted by an inflammatory microenvironment. Possible mechanistic roles for GP73/GOLM1 in HCC development and progression are currently being tested in carcinogenesis models with liver-specific knockout mice. A website on GP73/GOLM1 has also been established as a resource for the research community interested in the study of this protein.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 1323. doi:1538-7445.AM2012-1323
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Narayanan G, Arora G, Barbery K, Froud T, Livingstone A, Franceschi D, Hosein P, Rocha Lima C, Yrizarry J. Abstract No. 8: Downstaging locally advanced pancreatic adenocarcinoma (LAPC) with vascular encasement using percutaneous irreversible electroporation (IRE). J Vasc Interv Radiol 2012. [DOI: 10.1016/j.jvir.2011.12.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Abstract
BACKGROUND Cutaneous tuberculosis forms a small subset of extrapulmonary tuberculosis. The present study is an attempt to observe the clinico morphological pattern seen in cases of cutaneous tuberculosis over a period of 5 years, and to correlate them with mantoux reactivity and human immunodeficiency virus (HIV) status. METHODS All cases of cutaneous tuberculosis observed among the dermatology in patients and those attending out patient department were included in the study. The basis of diagnosis was clinical, histopathological and microbiological. Intradermal mantoux test and serological test in the form of enzyme-linked immunosorbent assay (ELISA) for tuberculosis was done. HIV screening was carried out in 32 cases. CD4 counts were done in all HIV positive cases. RESULTS A total 0.02% patient attending the dermatology centre had cutaneous tuberculosis. The spectrum of infection included 19 (51%) cases of lupus vulgaris, 7 (19%) cases of papulonecrotic tuberculids, six cases each of tuberculosis verrucosa cutis and scrofuloderma. One case had scrofuloderma and lupus vulgaris and another both scrofuloderma and papulonecrotic tuberculide. One case of lichen scrofulosorum was seen in a seven year old boy. 11 cases revealed evidence of systemic tuberculosis. Seven cases of HIV with CD4 counts between 50-500 cells/μl were observed in this study.
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Affiliation(s)
- S Arora
- Graded Specialist (Dermatology and Venerology), 5 Air Force Hospital, C/o 99 APO, Assam
| | - G Arora
- Dermatologist, Jorhat, Assam
| | - S Kakkar
- Senior Advisor (Pathology and Oncology), Base Hospital, Delhi Cantt-10
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Narayanan G, Arora G, Koshy T, Hanumanthaiah S, Yrizarry J. Abstract No. 110: Trans arterial chemoembolization (TACE) using Irinotecan coated LC beads for treatment of hepatic metastases from colorectal cancer (CRC). J Vasc Interv Radiol 2010. [DOI: 10.1016/j.jvir.2009.12.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Abstract
Familial homozygous hypercholesterolemia is a rare disease with diverse clinical presentations. Patients often present with cutaneous xanthomas, particularly in the Achilles' tendon. They may have significant cardiovascular involvement, including premature atherosclerotic coronary artery disease and valvar and supravalvar aortic stenosis. Standard therapy includes diet modulation, pharmacotherapy, and lipid apheresis. Rarely, patients require surgical intervention for coronary artery bypass grafting and/or relief of the aortic stenosis. We present the case of a patient with severe progressive supravalvar aortic stenosis that ultimately required surgical resection despite aggressive medical therapy.
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Affiliation(s)
- G Arora
- Lillie Frank Abercrombie Section of Cardiology, Texas Children's Hospital, Baylor College of Medicine, Mail Code 19345C, Houston, TX 77030, USA.
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Affiliation(s)
- G Arora
- Lillie Frank Abercrombie Section of Cardiology, Texas Children's Heart Center, Texas Children's Hospital, Baylor College of Medicine, 6621 Fannin Street, MC 19345C, Houston, TX 77030, USA.
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Arora G, Lee BH. Purification and characterization of an aminopeptidase from Lactobacillus casei subsp. rhamnosus S93. Biotechnol Appl Biochem 1994; 19:179-92. [PMID: 8192866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
An aminopeptidase of broad specificity was extracted by cell lysis of a selected strain of Lactobacillus casei subsp. rhamnosus during the late exponential phase. The enzyme was purified 195-fold from crude extract by using an f.p.l.c. system. Native and SDS/PAGE of the purified enzyme showed a single protein band of 89 kDa. The maximum aminopeptidase activity was observed at pH 7.0 and 39 degrees C. The enzyme hydrolysed a range of nitroanilide-substituted amino acids, as well as dipeptides, and accounted for most of the aminopeptidase activity found in cell-free extracts. The enzyme activity was inhibited by metal chelators such as EDTA and 1,10-phenanthroline. Cobalt ions only stimulated aminopeptidase activity and were also able to re-activate the enzyme previously inhibited by metal chelators. The Km and Vmax. values of the aminopeptidase for leucine p-nitroanilide were 0.06 mM and 12.6 mmol/min per mg of protein respectively. This enzyme was stable over the pH range of 5-9 and below 45 degrees C.
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Affiliation(s)
- G Arora
- Agriculture Canada Food Research and Development Center, St. Hyacinthe, Québec
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Arora G, Mehta PM, Paspa P, Jolly SR, Reeves WC, Movahed A. A radioimaging technique for quantifying regional myocardial blood flow. Am J Physiol Imaging 1992; 7:230-8. [PMID: 1343220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We developed a radioimaging technique for measuring regional myocardial blood flow (rMBF) in 5 mm2 myocardial tissue using canine closed-chest models. RMBF was measured in three groups: (1) total occlusion of left anterior descending (LAD) coronary artery with microfibrillar collagen, (2) fixed stenosis of LAD with angioplasty balloon, and (3) comparison of clinical dose response of adenosine (AD) and dipyridamole (DP) on rMBF. In these studies, rMBF in every 5 mm2 tissue was measured throughout the epicardium and endocardium. In groups 1 and 2, rMBF was also measured during adenosine-induced coronary hyperemia (ADICH). In group 1 (n = 7), rMBF measured at 6 hours post-LAD occlusion in epicardial infarct center (IC), peri-infarct (PI) and normal zone (NZ) were 17 +/- 7, 55 +/- 8, and 132 +/- 12 ml/min/100 tissue, respectively. The area and location of infarct seen in TTC staining matched with rMBF images. During ADICH, the corresponding rMBF were 16.2 +/- 13.9, 98.3 +/- 53.0, and 226.0 +/- 103.6 ml/min/100 g tissue, respectively. RMBF measured during ADICH in group 2 (n = 4) in areas of LAD stenosis (LS), surrounding stenosis (SS), and no stenosis (NS) were 120 +/- 58, 249 +/- 123, and 432 +/- 181 ml/min/100 gm tissue, respectively. In group 3, rMBF measured during 3 min into 0.14 mg/kg/min adenosine infusion in areas perfused by LAD, circumflex (CX) and right coronary artery (RCA) were 244 +/- 22, 238 +/- 19, and 215 +/- 19 ml/min/100 g tissue, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- G Arora
- Department of Medicine, East Carolina University, Greenville, North Carolina 27858-4354
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Stokely EM, Bonte FJ, Devous MD, Arora G. Brain blood flow by radioxenon tomography. J Nucl Med 1988; 29:1875-8. [PMID: 3263481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Abstract
Bone-mineral measurements using quantitative computed tomography (QCT) are commonly based on comparisons with solutions in water of known concentrations of K2HPO4. In this paper are described theoretical and experimental studies that have led to the conclusion that large systematic errors can arise in these measurements, depending on the soft-tissue and fat concentrations in the vertebral spongiosa. In the case of single energy scanning, such large errors have been identified to be due to the varying water content (displacement effect) in the calibration samples and the varying fat content in the region of interest (ROI) within the patient. In the case of dual energy scanning, the error arises because when normalized to that of water, the mass attenuation coefficient of fat increases with photon energy while the reverse is true for K2HPO4. Our studies have also revealed that total trabecular bone density (which includes the mineral, soft tissue, and fat) can be much more accurately determined by the dual energy QCT method than bone mineral alone. This finding is especially interesting since there have been several reports in the literature suggesting that bone density rather than bone-mineral content is a better predictor of the risk of osteoporosis-related fractures.
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Arora G. Changing dimensions of social stratification and fertility behaviour in India. East Anthropol 1986; 39:297-325. [PMID: 12316960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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Arora G. Caste, socio-economic status and fertility -- a study of proximate determinants of fertility in village Riwasa. Guru Nanak J Sociol 1985; 6:81-96. [PMID: 12281355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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Abstract
Gossypol acetic acid at the dose of 5 mg/rat/day for 2 and 4 weeks did not cause any significant effect on the body weight, testis, epididymis, seminal vesicle and prostate weight, nor gossypol treatment had any significant effect on the activities of acid phosphatase and succinic dehydrogenase in the testis. Changes in the testis ATPase activity were, however, significant after gossypol treatment. During the course of present investigations no effect of gossypol treatment on 3H thymidine incorporation into DNA of testicular cells was observed, nor there were any changes in the DNA and total protein content of the testis after gossypol treatment. Gossypol treatment did not cause any effect on the plasma Na+ level. However, transient decrease in the plasma K+ level was observed; decrease in K+ level two weeks after gossypol treatment was restored to normal after 4 weeks of gossypol treatment. No changes in the histology of the testis were observed 2 weeks after gossypol treatment but marked inhibition of spermatogenesis was observed 4 weeks after gossypol treatment. Motility of vas deferens spermatozoa was also markedly inhibited 4 weeks after gossypol treatment. In the light of the present observations and those of others, there is a clear demonstration that gossypol acts directly on the spermatozoa and on the testis; at both the sites the drug interferes in the ATPase activity.
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