1
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Renga G, Nunzi E, Stincardini C, Pariano M, Puccetti M, Pieraccini G, Di Serio C, Fraziano M, Poerio N, Oikonomou V, Mosci P, Garaci E, Fianchi L, Pagano L, Romani L. CPX-351 exploits the gut microbiota to promote mucosal barrier function, colonization resistance, and immune homeostasis. Blood 2024; 143:1628-1645. [PMID: 38227935 DOI: 10.1182/blood.2023021380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 12/18/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024] Open
Abstract
ABSTRACT CPX-351, a liposomal combination of cytarabine plus daunorubicin, has been approved for the treatment of adults with newly diagnosed, therapy-related acute myeloid leukemia (AML) or AML with myelodysplasia-related changes, because it improves survival and outcome of patients who received hematopoietic stem cell transplant compared with the continuous infusion of cytarabine plus daunorubicin (referred to as "7 + 3" combination). Because gut dysbiosis occurring in patients with AML during induction chemotherapy heavily affects the subsequent phases of therapy, we have assessed whether the superior activity of CPX-351 vs "7 + 3" combination in the real-life setting implicates an action on and by the intestinal microbiota. To this purpose, we have evaluated the impact of CPX-351 and "7 + 3" combination on mucosal barrier function, gut microbial composition and function, and antifungal colonization resistance in preclinical models of intestinal damage in vitro and in vivo and fecal microbiota transplantation. We found that CPX-351, at variance with "7 + 3" combination, protected from gut dysbiosis, mucosal damage, and gut morbidity while increasing antifungal resistance. Mechanistically, the protective effect of CPX-351 occurred through pathways involving both the host and the intestinal microbiota, namely via the activation of the aryl hydrocarbon receptor-interleukin-22 (IL-22)-IL-10 host pathway and the production of immunomodulatory metabolites by anaerobes. This study reveals how the gut microbiota may contribute to the good safety profile, with a low infection-related mortality, of CPX-351 and highlights how a better understanding of the host-microbiota dialogue may contribute to pave the way for precision medicine in AML.
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Affiliation(s)
- Giorgia Renga
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Emilia Nunzi
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Marilena Pariano
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Matteo Puccetti
- Department of Pharmaceutical Science, University of Perugia, Perugia, Italy
| | | | - Claudia Di Serio
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Maurizio Fraziano
- Department of Biology, University of Rome "Tor Vergata," Rome, Italy
| | - Noemi Poerio
- Department of Biology, University of Rome "Tor Vergata," Rome, Italy
| | | | - Paolo Mosci
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Luana Fianchi
- Division of Hematology, Policlinico Gemelli, Università Cattolica Sacro Cuore, Rome, Italy
| | - Livio Pagano
- Division of Hematology, Policlinico Gemelli, Università Cattolica Sacro Cuore, Rome, Italy
| | - Luigina Romani
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
- San Raffaele Sulmona, Sulmona, Italy
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2
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Abstract
Infection with SARS-CoV-2, the causative agent of the COVID-19 pandemic, originated in China and quickly spread across the globe. Despite tremendous economic and healthcare devastation, research on this virus has contributed to a better understanding of numerous molecular pathways, including those involving γ-aminobutyric acid (GABA), that will positively impact medical science, including neuropsychiatry, in the post-pandemic era. SARS-CoV-2 primarily enters the host cells through the renin–angiotensin system’s component named angiotensin-converting enzyme-2 (ACE-2). Among its many functions, this protein upregulates GABA, protecting not only the central nervous system but also the endothelia, the pancreas, and the gut microbiota. SARS-CoV-2 binding to ACE-2 usurps the neuronal and non-neuronal GABAergic systems, contributing to the high comorbidity of neuropsychiatric illness with gut dysbiosis and endothelial and metabolic dysfunctions. In this perspective article, we take a closer look at the pathology emerging from the viral hijacking of non-neuronal GABA and summarize potential interventions for restoring these systems.
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3
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Chiu K, Warner G, Nowak RA, Flaws JA, Mei W. The Impact of Environmental Chemicals on the Gut Microbiome. Toxicol Sci 2021; 176:253-284. [PMID: 32392306 DOI: 10.1093/toxsci/kfaa065] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Since the surge of microbiome research in the last decade, many studies have provided insight into the causes and consequences of changes in the gut microbiota. Among the multiple factors involved in regulating the microbiome, exogenous factors such as diet and environmental chemicals have been shown to alter the gut microbiome significantly. Although diet substantially contributes to changes in the gut microbiome, environmental chemicals are major contaminants in our food and are often overlooked. Herein, we summarize the current knowledge on major classes of environmental chemicals (bisphenols, phthalates, persistent organic pollutants, heavy metals, and pesticides) and their impact on the gut microbiome, which includes alterations in microbial composition, gene expression, function, and health effects in the host. We then discuss health-related implications of gut microbial changes, which include changes in metabolism, immunity, and neurological function.
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Affiliation(s)
- Karen Chiu
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802.,Division of Nutritional Sciences, College of Agricultural, Consumer, and Environmental Sciences
| | - Genoa Warner
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802
| | - Romana A Nowak
- Carl R. Woese Institute for Genomic Biology.,Department of Animal Sciences, College of Agricultural, Consumer, and Environmental Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - Jodi A Flaws
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802.,Division of Nutritional Sciences, College of Agricultural, Consumer, and Environmental Sciences.,Carl R. Woese Institute for Genomic Biology
| | - Wenyan Mei
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802.,Carl R. Woese Institute for Genomic Biology
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4
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Abdulla OA, Neamah W, Sultan M, Alghetaa HK, Singh N, Busbee PB, Nagarkatti M, Nagarkatti P. The Ability of AhR Ligands to Attenuate Delayed Type Hypersensitivity Reaction Is Associated With Alterations in the Gut Microbiota. Front Immunol 2021; 12:684727. [PMID: 34267755 PMCID: PMC8277436 DOI: 10.3389/fimmu.2021.684727] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/09/2021] [Indexed: 12/20/2022] Open
Abstract
Aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that regulates T cell function. The aim of this study was to investigate the effects of AhR ligands, 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD), and 6-Formylindolo[3,2-b]carbazole (FICZ), on gut-associated microbiota and T cell responses during delayed-type hypersensitivity (DTH) reaction induced by methylated bovine serum albumin (mBSA) in a mouse model. Mice with DTH showed significant changes in gut microbiota including an increased abundance of Bacteroidetes and decreased Firmicutes at the phylum level. Also, there was a decrease in Clostridium cluster XIV and IV, which promote anti-inflammatory responses, and an increase in Prevotella copri that facilitates pro-inflammatory responses. Interestingly, treatment of mice with TCDD attenuated the DTH response, induced Tregs, suppressed Th17 cells in the mesenteric lymph nodes (MLNs), and reversed the gut microbiota composition toward normalcy. In contrast, FICZ exacerbated the DTH response, induced heightened Th17 cells, and failed to cause a major shift in gut microbiota. Furthermore, TCDD but not FICZ caused an increase in the levels of short-chain fatty acids (SCFA), n-butyric acid, and acetic acid. Administration of sodium butyrate into mice with DTH suppressed the response, increased Tregs, and reduced Th17 cells IL17. Butyrate also caused an increase in the abundance of Clostridium and a decrease in Prevotella. Lastly, TCDD, as well as butyrate but not FICZ, were able to inhibit proinflammatory Histone deacetylases (HDACs) class I and II. Together, our data suggest that AhR ligands, such as TCDD that suppress DTH response, may mediate this effect by reversing the gut dysbiosis induced during this inflammatory response, while FICZ may fail to suppress the DTH response because of its inability to overturn the dysbiosis.
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MESH Headings
- Animals
- Basic Helix-Loop-Helix Transcription Factors/agonists
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Butyric Acid/pharmacology
- Carbazoles/toxicity
- Cytokines/genetics
- Cytokines/metabolism
- Disease Models, Animal
- Female
- Gastrointestinal Microbiome/drug effects
- Hypersensitivity, Delayed/genetics
- Hypersensitivity, Delayed/immunology
- Hypersensitivity, Delayed/metabolism
- Hypersensitivity, Delayed/prevention & control
- Ligands
- Mice
- Mice, Inbred C57BL
- Polychlorinated Dibenzodioxins/toxicity
- Receptors, Aryl Hydrocarbon/agonists
- Receptors, Aryl Hydrocarbon/metabolism
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Th17 Cells/drug effects
- Th17 Cells/immunology
- Th17 Cells/metabolism
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Affiliation(s)
| | | | | | | | | | | | | | - Prakash Nagarkatti
- Department of Pathology, Microbiology, and Immunology, School of Medicine, University of South Carolina, Columbia, SC, United States
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5
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Kou Z, Dai W. Aryl hydrocarbon receptor: Its roles in physiology. Biochem Pharmacol 2021; 185:114428. [PMID: 33515530 DOI: 10.1016/j.bcp.2021.114428] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 12/27/2022]
Abstract
Aryl hydrocarbon receptor (AHR) was initially discovered as a cellular protein involved in mediating the detoxification of xenobiotic compounds. Extensive research in the past two decades has identified several families of physiological ligands and uncovered important functions of AHR in normal development and homeostasis. Deficiency in AHR expression disrupts major signaling systems and transcriptional programs, which appear to be responsible for the development of numerous developmental abnormalities including cardiac hypertrophy and epidermal hyperplasia. This mini review primarily summarizes recent advances in our understanding of AHR functions in normal physiology with an emphasis on the cardiovascular, gastrointestinal, integumentary, nervous, and immunomodulatory systems.
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Affiliation(s)
- Ziyue Kou
- Department of Environmental Medicine, New York University Langone Medical Center, NY 10010, United States
| | - Wei Dai
- Department of Environmental Medicine, New York University Langone Medical Center, NY 10010, United States.
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6
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Dopkins N, Becker W, Miranda K, Walla M, Nagarkatti P, Nagarkatti M. Tryptamine Attenuates Experimental Multiple Sclerosis Through Activation of Aryl Hydrocarbon Receptor. Front Pharmacol 2021; 11:619265. [PMID: 33569008 PMCID: PMC7868334 DOI: 10.3389/fphar.2020.619265] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/15/2020] [Indexed: 12/15/2022] Open
Abstract
Tryptamine is a naturally occurring monoamine alkaloid which has been shown to act as an aryl hydrocarbon receptor (AHR) agonist. It is produced in large quantities from the catabolism of the essential amino acid tryptophan by commensal microorganisms within the gastrointestinal (GI) tract of homeothermic organisms. Previous studies have established microbiota derived AHR ligands as potent regulators of neuroinflammation, further defining the role the gut-brain axis plays in the complex etiology in multiple sclerosis (MS) progression. In the current study, we tested the ability of tryptamine to ameliorate symptoms of experimental autoimmune encephalomyelitis (EAE), a murine model of MS. We found that tryptamine administration attenuated clinical signs of paralysis in EAE mice, decreased the number of infiltrating CD4+ T cells in the CNS, Th17 cells, and RORγ T cells while increasing FoxP3+Tregs. To test if tryptamine acts through AHR, myelin oligodendrocyte glycoprotein (MOG)-sensitized T cells from wild-type or Lck-Cre AHRflox/flox mice that lacked AHR expression in T cells, and cultured with tryptamine, were transferred into wild-type mice to induce passive EAE. It was noted that in these experiments, while cells from wild-type mice treated with tryptamine caused marked decrease in paralysis and attenuated neuroinflammation in passive EAE, similar cells from Lck-Cre AHRflox/flox mice treated with tryptamine, induced significant paralysis symptoms and heightened neuroinflammation. Tryptamine treatment also caused alterations in the gut microbiota and promoted butyrate production. Together, the current study demonstrates for the first time that tryptamine administration attenuates EAE by activating AHR and suppressing neuroinflammation.
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Affiliation(s)
- Nicholas Dopkins
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - William Becker
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Kathryn Miranda
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Mike Walla
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, United States
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
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7
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Jourová L, Lišková B, Lněničková K, Zemanová N, Anzenbacher P, Hermanová P, Hudcovic T, Kozáková H, Anzenbacherová E. Presence or absence of microbiome modulates the response of mice organism to administered drug nabumetone. Physiol Res 2020; 69:S583-S594. [PMID: 33646003 DOI: 10.33549/physiolres.934607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The gut microbiota provides a wide range of beneficial functions for the host, and has an immense effect on the host's health status. The presence of microbiome in the gut may often influence the effect of an orally administered drug. Molecular mechanisms of this process are however mostly unclear. We investigated how the effect of a nonsteroidal drug nabumetone on expression of drug metabolizing enzymes (DMEs) in mice intestine and liver is changed by the presence of microbiota, here, using the germ free (GF) and specific pathogen free (SPF) BALB/c mice. First, we have found in a preliminary experiment that in the GF mice there is a tendency to increase bioavailability of the active form of nabumetone, which we have found now to be possibly influenced by differences in expression of DMEs in the GF and SPF mice. Indeed, we have observed that the expression of the most of selected cytochromes P450 (CYPs) was significantly changed in the small intestine of GF mice compared to the SPF ones. Moreover, orally administered nabumetone itself altered the expression of some CYPs and above all, in different ways in the GF and SPF mice. In the GF mice, the expression of the DMEs (CYP1A) responsible for the formation of active form of the drug are significantly increased in the small intestine and liver after nabumetone application. These results highlight the importance of gut microbiome in processes involved in drug metabolism in the both gastrointestinal tract and in the liver with possible clinical relevance.
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Affiliation(s)
- L Jourová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic.
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8
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Ethridge AD, Bazzi MH, Lukacs NW, Huffnagle GB. Interkingdom Communication and Regulation of Mucosal Immunity by the Microbiome. J Infect Dis 2020; 223:S236-S240. [PMID: 33330908 DOI: 10.1093/infdis/jiaa748] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Intercellular communication and environmental sensing are most often mediated through ligand-receptor binding and signaling. This is true for both host cells and microbial cells. The ligands can be proteins (cytokines, growth factors, and peptides), modified lipids, nucleic acid derivatives and small molecules generated from metabolic pathways. These latter nonprotein metabolites play a much greater role in the overall function of mucosal immunity than previously recognized, and the list of potential immunomodulatory molecules derived from the microbiome is growing. The most well-studied microbial signals are the nonmetabolite microbe-associated molecular pattern molecules, such as lipopolysaccharide and teichoic acid, that bind to host pattern recognition receptors. Here, we will highlight the immunomodulatory activities of other microbiome-derived molecules, such as short-chain fatty acids, bile acids, uric acid, prostaglandins, histamine, catecholamines, aryl hydrocarbon receptor ligands, and 12,13-diHOME.
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Affiliation(s)
| | - Malak H Bazzi
- Molecular, Cellular & Developmental Biology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA
| | - Nicholas W Lukacs
- Immunology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.,Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA.,Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, Michigan, USA
| | - Gary B Huffnagle
- Immunology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.,Molecular, Cellular & Developmental Biology Graduate Program, University of Michigan, Ann Arbor, Michigan, USA.,Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, Michigan, USA.,Department of Molecular, Cellular & Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
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9
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Di Stadio A, Costantini C, Renga G, Pariano M, Ricci G, Romani L. The Microbiota/Host Immune System Interaction in the Nose to Protect from COVID-19. Life (Basel) 2020; 10:life10120345. [PMID: 33322584 PMCID: PMC7763594 DOI: 10.3390/life10120345] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/03/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and is characterized by variable clinical presentation that ranges from asymptomatic to fatal multi-organ damage. The site of entry and the response of the host to the infection affect the outcomes. The role of the upper airways and the nasal barrier in the prevention of infection is increasingly being recognized. Besides the epithelial lining and the local immune system, the upper airways harbor a community of microorganisms, or microbiota, that takes an active part in mucosal homeostasis and in resistance to infection. However, the role of the upper airway microbiota in COVID-19 is not yet completely understood and likely goes beyond protection from viral entry to include the regulation of the immune response to the infection. Herein, we discuss the hypothesis that restoring endogenous barriers and anti-inflammatory pathways that are defective in COVID-19 patients might represent a valid strategy to reduce infectivity and ameliorate clinical symptomatology.
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Affiliation(s)
- Arianna Di Stadio
- Department of Otolaryngology, University of Perugia, 06132 Perugia, Italy;
- Correspondence: (A.D.S.); (L.R.)
| | - Claudio Costantini
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (C.C.); (G.R.); (M.P.)
| | - Giorgia Renga
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (C.C.); (G.R.); (M.P.)
| | - Marilena Pariano
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (C.C.); (G.R.); (M.P.)
| | - Giampietro Ricci
- Department of Otolaryngology, University of Perugia, 06132 Perugia, Italy;
| | - Luigina Romani
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (C.C.); (G.R.); (M.P.)
- Correspondence: (A.D.S.); (L.R.)
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10
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Chen Z, Cai A, Zheng H, Huang H, Sun R, Cui X, Ye W, Yao Q, Chen R, Kou L. Carbidopa suppresses prostate cancer via aryl hydrocarbon receptor-mediated ubiquitination and degradation of androgen receptor. Oncogenesis 2020; 9:49. [PMID: 32404918 PMCID: PMC7220950 DOI: 10.1038/s41389-020-0236-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 12/23/2022] Open
Abstract
Carbidopa, a peripheral decarboxylase inhibitor used with L-DOPA to treat Parkinson’s disease, has attracted significant interest in recent years for its anticancer effect. Increasing evidence reveals that Carbidopa can inhibit cancer cell growth and induce apoptosis through aryl hydrocarbon receptor (AHR) in some cancers. However, the antitumor effect of Carbidopa in prostate cancer (PCa) is not fully understood. Androgen receptor (AR) plays a central role in PCa, even in advanced “castrate-resistant” disease. In the present study, we report that Carbidopa suppresses the growth of PCa by downregulating the protein expression of AR. Carbidopa inhibits proliferation and migration of LNCaP cells and promotes apoptosis, but has no effect on the AR-independent prostate cell line DU145. Carbidopa increases ubiquitination of AR in LNCaP cells. Several studies have shown that AHR can act as an E3 ubiquitin ligase and promote the proteasomal degradation of AR. Quantitative RT-PCR, immunofluorescence staining and immunoblotting assay demonstrate that AHR is induced and activated by Carbidopa, and the co-immunoprecipitation assay shows that AR interacts with AHR, firmly confirming that Carbidopa decreases AR protein level though AHR-induced proteasomal degradation. In addition, Carbidopa suppresses PCa growth in vivo when xenografted into immunocompromised mice. Carbidopa treatment increases AHR protein level and decreases AR protein level in tumor tissues. Taken together, our study implicates Carbidopa for the first time in effective suppression of prostate cancer via a mechanism, involving AHR-mediated proteasomal degradation of AR.
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Affiliation(s)
- Zhiwei Chen
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.,Wenzhou Municipal Key Laboratory of Paediatric Pharmacy, Wenzhou, 325027, China
| | - Aimin Cai
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Hailun Zheng
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Huirong Huang
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Rui Sun
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Xiao Cui
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Weijian Ye
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.,Wenzhou Municipal Key Laboratory of Paediatric Pharmacy, Wenzhou, 325027, China
| | - Qing Yao
- Wenzhou Municipal Key Laboratory of Paediatric Pharmacy, Wenzhou, 325027, China. .,Department of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Ruijie Chen
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China. .,Wenzhou Municipal Key Laboratory of Paediatric Pharmacy, Wenzhou, 325027, China.
| | - Longfa Kou
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China. .,Wenzhou Municipal Key Laboratory of Paediatric Pharmacy, Wenzhou, 325027, China.
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11
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Tsvetikova SA, Koshel EI. Microbiota and cancer: host cellular mechanisms activated by gut microbial metabolites. Int J Med Microbiol 2020; 310:151425. [DOI: 10.1016/j.ijmm.2020.151425] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 03/25/2020] [Accepted: 04/13/2020] [Indexed: 12/13/2022] Open
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12
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Sun Z, Li J, Dai Y, Wang W, Shi R, Wang Z, Ding P, Lu Q, Jiang H, Pei W, Zhao X, Guo Y, Liu J, Tan X, Mao T. Indigo Naturalis Alleviates Dextran Sulfate Sodium-Induced Colitis in Rats via Altering Gut Microbiota. Front Microbiol 2020; 11:731. [PMID: 32425906 PMCID: PMC7203728 DOI: 10.3389/fmicb.2020.00731] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/27/2020] [Indexed: 01/10/2023] Open
Abstract
Ulcerative colitis is a gastrointestinal disorder intricately associated with intestinal dysbiosis, but effective treatments are currently limited. Indigo naturalis, a traditional Chinese medicine derived from indigo plants, has been widely used in the treatment of ulcerative colitis. However, the specific mechanisms have not yet been identified. Accordingly, in this study, we evaluated the effects and mechanisms of indigo naturalis on dextran sulfate sodium (DSS)-induced colitis in rats. Our results showed that indigo naturalis potently alleviated DSS-induced colitis in rats, and reversed DSS-induced intestinal dysbiosis using bacterial 16S rRNA amplicon sequencing. The protective effects of indigo naturalis were gut microbiota dependent, as demonstrated by antibiotic treatments and fecal microbiota transplantation. Depletion of the gut microbiota through a combination of antibiotic treatments blocked the anti-inflammatory effect of indigo naturalis on the DSS-induced colitis, and the recipients of the gut microbiota from indigo naturalis-treated rats displayed a significantly attenuated intestinal inflammation, which was actively responsive to therapeutic interventions with indigo naturalis. Notably, supplement with indigo naturalis greatly increased the levels of feces butyrate, which was positively correlated with the relative abundances of Ruminococcus_1 and Butyricicoccus. We further showed that indigo naturalis-dependent attenuation of colitis was associated with elevated expression of short-chain fatty acid-associated receptors GPR41 and GPR43. Collectively, these results suggested that indigo naturalis alleviates DSS-induced colitis in rats through a mechanism of the microbiota-butyrate axis, particularly alterations in Ruminococcus_1 and Butyricicoccus abundances, and target-specific microbial species may have unique therapeutic promise for ulcerative colitis.
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Affiliation(s)
- Zhongmei Sun
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Junxiang Li
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yi Dai
- Department of Pharmacy, School of Pharmacy, Hyogo University of Health Sciences, Kobe, Japan
| | - Wenting Wang
- Department of Traditional Chinese Medicine, Beijing Yangfangdian Hospital, Beijing, China
| | - Rui Shi
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Zhibin Wang
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Panghua Ding
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Qiongqiong Lu
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Jiang
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Wenjing Pei
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xingjie Zhao
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yi Guo
- Department of Gastroenterology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Jiali Liu
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xiang Tan
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Tangyou Mao
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
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Egusquiza RJ, Blumberg B. Environmental Obesogens and Their Impact on Susceptibility to Obesity: New Mechanisms and Chemicals. Endocrinology 2020; 161:bqaa024. [PMID: 32067051 PMCID: PMC7060764 DOI: 10.1210/endocr/bqaa024] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/05/2020] [Accepted: 02/13/2020] [Indexed: 12/12/2022]
Abstract
The incidence of obesity has reached an all-time high, and this increase is observed worldwide. There is a growing need to understand all the factors that contribute to obesity to effectively treat and prevent it and associated comorbidities. The obesogen hypothesis proposes that there are chemicals in our environment termed obesogens that can affect individual susceptibility to obesity and thus help explain the recent large increases in obesity. This review discusses current advances in our understanding of how obesogens act to affect health and obesity susceptibility. Newly discovered obesogens and potential obesogens are discussed, together with future directions for research that may help to reduce the impact of these pervasive chemicals.
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Affiliation(s)
- Riann Jenay Egusquiza
- Department of Developmental and Cell Biology, University of California Irvine, Irvine, California
- Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California
| | - Bruce Blumberg
- Department of Developmental and Cell Biology, University of California Irvine, Irvine, California
- Department of Pharmaceutical Sciences, University of California Irvine, Irvine, California
- Department of Biomedical Engineering, University of California Irvine, Irvine, California
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