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Singh P, Li FJ, Dsouza K, Stephens CT, Zheng H, Kumar A, Dransfield MT, Antony VB. Low dose cadmium exposure regulates miR-381-ANO1 interaction in airway epithelial cells. Sci Rep 2024; 14:246. [PMID: 38168913 PMCID: PMC10762153 DOI: 10.1038/s41598-023-50471-z] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is the 3rd leading cause of death worldwide. Cigarette smoke which has approximately 2-3 µg of Cadmium (Cd) per cigarette contributes to the environmental exposure and development and severity of COPD. With the lack of a cadmium elimination mechanism in humans, the contribution of cadmium induced stress to lung epithelial cells remains unclear. Studies on cadmium responsive miRNAs suggest regulation of target genes with an emphasis on the critical role of miRNA-mRNA interaction for cellular homeostasis. Mir-381, the target miRNA in this study is negatively regulated by cadmium in airway epithelial cells. miR-381 is reported to also regulate ANO1 (Anoctamin 1) expression negatively and in this study low dose cadmium exposure to airway epithelial cells was observed to upregulate ANO1 mRNA expression via mir-381 inhibition. ANO1 which is a Ca2+-activated chloride channel has multiple effects on cellular functions such as proliferation, mucus hypersecretion and fibroblast differentiation in inflamed airways in chronic respiratory diseases. In vitro studies with cadmium at a high concentration range of 100-500 µM is reported to activate chloride channel, ANO1. The secretory epithelial cells are regulated by chloride channels like CFTR, ANO1 and SLC26A9. We examined "ever" smokers with COPD (n = 13) lung tissue sections compared to "never" smoker without COPD (n = 9). We found that "ever" smokers with COPD had higher ANO1 expression. Using mir-381 mimic to inhibit ANO1, we demonstrate here that ANO1 expression is significantly (p < 0.001) downregulated in COPD derived airway epithelial cells exposed to cadmium. Exposure to environmental cadmium contributes significantly to ANO1 expression.
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Affiliation(s)
- Pooja Singh
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Fu Jun Li
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kevin Dsouza
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Crystal T Stephens
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Huaxiu Zheng
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Abhishek Kumar
- UAB Superfund Center Advisory Board, Gainesville, FL, United States
| | - Mark T Dransfield
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Veena B Antony
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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Sharma NS, Patel K, Sari E, Shankar S, Gastanadui MG, Moncada-Giraldo D, Soto-Vazquez Y, Stacks D, Hecker L, Dsouza K, Banday M, O’Neill E, Benson P, Payne G, Margaroli C, Gaggar A. Active transcription in the vascular bed characterizes rapid progression in idiopathic pulmonary fibrosis. J Clin Invest 2023; 133:e165976. [PMID: 37384419 PMCID: PMC10425209 DOI: 10.1172/jci165976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023] Open
Affiliation(s)
- Nirmal S. Sharma
- Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
- West Roxbury VA Medical Center, Boston, Massachusetts, USA
| | - Kapil Patel
- Department of Medicine, University of South Florida, Tampa, Florida, USA
| | - Ezgi Sari
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Shruti Shankar
- Department of Medicine, University of South Florida, Tampa, Florida, USA
| | - Maria G. Gastanadui
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Yixel Soto-Vazquez
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Delores Stacks
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Louise Hecker
- Department of Medicine, Emory University, Atlanta, Georgia, USA
| | - Kevin Dsouza
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Mudassir Banday
- Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Edward O’Neill
- Department of Medicine, University of South Florida, Tampa, Florida, USA
| | - Paul Benson
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Gregory Payne
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Birmingham VA Medical Center, Birmingham, Alabama, USA
- Lung Health Center, Program in Protease and Matrix Biology, and Gregory Fleming James CF Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Camilla Margaroli
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Amit Gaggar
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Birmingham VA Medical Center, Birmingham, Alabama, USA
- Lung Health Center, Program in Protease and Matrix Biology, and Gregory Fleming James CF Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Oluboyede DO, Zafar M, Shirazi F, Dsouza K, Abdulkarim A, Hacikurt K, Whitehead M. The Conservative Management of Choledocholithiasis With Ursodeoxycholic Acid. Cureus 2023; 15:e43850. [PMID: 37736472 PMCID: PMC10510569 DOI: 10.7759/cureus.43850] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2023] [Indexed: 09/23/2023] Open
Abstract
Choledocholithiasis has been defined as the presence of stones within the common bile duct (CBD) with up to one-half of the cases remaining asymptomatic. We report a case of an 84-year-old frail male admitted for the treatment of pneumonia, pleural effusion, and bacteraemia with co-incidental deranged liver function tests (LFTs). Ensuing magnetic resonance cholangiopancreatography (MRCP) noted three CBD stones; however, the patient remained asymptomatic. After discussing the benefits and risks of treatment options with the gastroenterology team, the patient refused endoscopic retrograde cholangiopancreatography (ERCP) and opted for close monitoring in the community whilst taking ursodeoxycholic acid (UDCA). In the months following, his LFTs normalised, and repeat MRCP no longer showed stones. This case demonstrates that UDCA with close monitoring may be considered a non-invasive alternative treatment of CBD stones, particularly in elderly or frail patients with multiple comorbidities.
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Affiliation(s)
- Daniel O Oluboyede
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Mansoor Zafar
- Gastroenterology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, GBR
- Gastroenterology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, GBR
| | - Farah Shirazi
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
- Medicine, Jinnah Medical & Dental College, Karachi, PAK
| | - Kevin Dsouza
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Abdulmoen Abdulkarim
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Kadir Hacikurt
- Radiology, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Mark Whitehead
- Gastroenterology, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
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Surolia R, Li FJ, Dsouza K, Zeng H, Singh P, Stephens C, Guo Y, Wang Z, Kashyap M, Srivastava R, Lora Gonzalez M, Benson P, Kumar A, Kim H, Kim YI, Ahmad A, Athar M, Antony VB. Cutaneous Exposure to Arsenicals Is Associated with Development of Constrictive Bronchiolitis in Mice. Am J Respir Cell Mol Biol 2023; 68:485-497. [PMID: 36780670 PMCID: PMC10174172 DOI: 10.1165/rcmb.2022-0321ma] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 02/13/2023] [Indexed: 02/15/2023] Open
Abstract
Organoarsenicals, such as lewisite and related chloroarsine, diphenylchloroarsine (DPCA), are chemical warfare agents developed during World War I. Stockpiles in Eastern Europe remain a threat to humans. The well-documented effects of cutaneous exposure to these organoarsenicals include skin blisters, painful burns, and life-threatening conditions such as acute respiratory distress syndrome. In survivors, long-term effects such as the development of respiratory ailments are reported for the organoarsenical sulfur mustard; however, no long-term pulmonary effects are documented for lewisite and DPCA. No animal models exist to explore the relationship between skin exposure to vesicants and constrictive bronchiolitis. We developed and characterized a mouse model to study the long-term effects of cutaneous exposure on the lungs after exposure to a sublethal dose of organoarsenicals. We exposed mice to lewisite, DPCA, or a less toxic surrogate organoarsenic chemical, phenyl arsine oxide, on the skin. The surviving mice were followed for 20 weeks after skin exposure to arsenicals. Lung microcomputed tomography, lung function, and histology demonstrated increased airway resistance, increased thickness of the smooth muscle layer, increased collagen deposition in the subepithelium, and peribronchial lymphocyte infiltration in mice exposed to arsenical on skin.
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Affiliation(s)
- Ranu Surolia
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
- Superfund Research Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Fu Jun Li
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
- Superfund Research Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kevin Dsouza
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
- Superfund Research Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Huaxiu Zeng
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Pooja Singh
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
- Superfund Research Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Crystal Stephens
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
- Superfund Research Center, University of Alabama at Birmingham, Birmingham, Alabama
| | | | - Zheng Wang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | | | | | | | | | | | | | - Young-il Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Aftab Ahmad
- Department of Anesthesiology and Perioperative Medicine, and
| | | | - Veena B. Antony
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
- Superfund Research Center, University of Alabama at Birmingham, Birmingham, Alabama
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Balina H, Dsouza K, Lara PA, Luckhardt T, Kulkarni T, Gulati S. NATURAL HISTORY OF INTERSTITIAL LUNG DISEASE (ILD) AND RESPONSE TO TREATMENT REGIMENS IN PATIENTS WITH IDIOPATHIC INFLAMMATORY MYOPATHIES (IIM): A SINGLE CENTER EXPERIENCE. Chest 2020. [DOI: 10.1016/j.chest.2020.08.971] [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: 10/23/2022] Open
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Balina H, Dsouza K, Lara PA, Luckhardt T, Kulkarni T, Gulati S. A HIDDEN DIAGNOSIS MANIFESTING AS NONSPECIFIC INTERSTITIAL PNEUMONIA: IGG4-RELATED LUNG DISEASE. Chest 2020. [DOI: 10.1016/j.chest.2020.08.1739] [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: 11/26/2022] Open
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Blumhof S, Dsouza K, Mehta A, Kulkarni T. WHERE THERE IS NOT SMOKE THERE IS STILL FIRE: A CASE OF PULMONARY LANGERHANS CELL HISTOICYTOSIS IN A FORMER SMOKER WITH A HISTORY OF MULTIPLE MALIGNANCIES. Chest 2019. [DOI: 10.1016/j.chest.2019.08.255] [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: 11/28/2022] Open
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Surolia R, Li FJ, Wang Z, Li H, Dsouza K, Thomas V, Mirov S, Pérez-Sala D, Athar M, Thannickal VJ, Antony VB. Vimentin intermediate filament assembly regulates fibroblast invasion in fibrogenic lung injury. JCI Insight 2019; 4:123253. [PMID: 30944258 DOI: 10.1172/jci.insight.123253] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [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: 07/16/2018] [Accepted: 02/26/2019] [Indexed: 12/22/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive disease, with a median survival of 3-5 years following diagnosis. Lung remodeling by invasive fibroblasts is a hallmark of IPF. In this study, we demonstrate that inhibition of vimentin intermediate filaments (VimIFs) decreases the invasiveness of IPF fibroblasts and confers protection against fibrosis in a murine model of experimental lung injury. Increased expression and organization of VimIFs contribute to the invasive property of IPF fibroblasts in connection with deficient cellular autophagy. Blocking VimIF assembly by pharmacologic and genetic means also increases autophagic clearance of collagen type I. Furthermore, inhibition of expression of collagen type I by siRNA decreased invasiveness of fibroblasts. In a bleomycin injury model, enhancing autophagy in fibroblasts by an inhibitor of VimIF assembly, withaferin A (WFA), protected from fibrotic lung injury. Additionally, in 3D lung organoids, or pulmospheres, from patients with IPF, WFA reduced the invasiveness of lung fibroblasts in the majority of subjects tested. These studies provide insights into the functional role of vimentin, which regulates autophagy and restricts the invasiveness of lung fibroblasts.
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Affiliation(s)
- Ranu Surolia
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Fu Jun Li
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Zheng Wang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Huashi Li
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Kevin Dsouza
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Vinoy Thomas
- Department of Materials Science and Engineering, and
| | - Sergey Mirov
- Department of Physics, University of Alabama at Birmingham (UAB), Birmingham, Alabama, USA
| | - Dolores Pérez-Sala
- Department of Structural and Chemical and Biology, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Mohammad Athar
- Department of Dermatology, UAB, Birmingham, Alabama, USA
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
| | - Veena B Antony
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine
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Dsouza K, Vijaykumar K, Gurell M. Abscess, Abscess Everywhere! A Case of Metastatic Klebsiella Infection. Chest 2016. [DOI: 10.1016/j.chest.2016.08.459] [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] Open
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10
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Vijaykumar K, Dsouza K, Ji K, Lerner L. Pancreaticopleural Fistula: The Formidable Liaison. Chest 2015. [DOI: 10.1378/chest.2246455] [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: 11/01/2022] Open
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Krishnaswamy UM, Kadur R, Misra A, Aneja A, Dsouza K, Vijaykumar K. Development and Validation of a New Scale for Evaluation of Excessive Sleepiness. Chest 2014. [DOI: 10.1378/chest.1987700] [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: 11/01/2022] Open
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