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Su AL, Harris SM, Elkin ER, Karnovsky A, Colacino J, Loch-Caruso RK. Trichloroethylene Metabolite S-(1,2-Dichlorovinyl)-l-cysteine Stimulates Changes in Energy Metabolites and Amino Acids in the BeWo Human Placental Trophoblast Model during Syncytialization. Chem Res Toxicol 2023; 36:882-899. [PMID: 37162359 PMCID: PMC10499396 DOI: 10.1021/acs.chemrestox.3c00007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Syncytialization, the fusion of cytotrophoblasts into an epithelial barrier that constitutes the maternal-fetal interface, is a crucial event of placentation. This process is characterized by distinct changes to amino acid and energy metabolism. A metabolite of the industrial solvent trichloroethylene (TCE), S-(1,2-dichlorovinyl)-l-cysteine (DCVC), modifies energy metabolism and amino acid abundance in HTR-8/SVneo extravillous trophoblasts. In the current study, we investigated DCVC-induced changes to energy metabolism and amino acids during forskolin-stimulated syncytialization in BeWo cells, a human villous trophoblastic cell line that models syncytialization in vitro. BeWo cells were exposed to forskolin at 100 μM for 48 h to stimulate syncytialization. During syncytialization, BeWo cells were also treated with DCVC at 0 (control), 10, or 20 μM. Following treatment, the targeted metabolomics platform, "Tricarboxylic Acid Plus", was used to identify changes in energy metabolism and amino acids. DCVC treatment during syncytialization decreased oleic acid, aspartate, proline, uridine diphosphate (UDP), UDP-d-glucose, uridine monophosphate, and cytidine monophosphate relative to forskolin-only treatment controls, but did not increase any measured metabolite. Notable changes stimulated by syncytialization in the absence of DCVC included increased adenosine monophosphate and guanosine monophosphate, as well as decreased aspartate and glutamate. Pathway analysis revealed multiple pathways in amino acid and sugar metabolisms that were altered with forskolin-stimulated syncytialization alone and DCVC treatment during syncytialization. Analysis of ratios of metabolites within the pathways revealed that DCVC exposure during syncytialization changed metabolite ratios in the same or different direction compared to syncytialization alone. Building off our oleic acid findings, we found that extracellular matrix metalloproteinase-2, which is downstream in oleic acid signaling, underwent the same changes as oleic acid. Together, the metabolic changes stimulated by DCVC treatment during syncytialization suggest changes in energy metabolism and amino acid abundance as potential mechanisms by which DCVC could impact syncytialization and pregnancy.
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Affiliation(s)
- Anthony L. Su
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109
| | - Sean M. Harris
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109
| | - Elana R. Elkin
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109
| | - Alla Karnovsky
- Department of Computational Medicine and Bioinformatics, University of Michigan Medical School, Ann Arbor, Michigan 48109, United States
| | - Justin Colacino
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Rita Karen Loch-Caruso
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, Michigan 48109
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Staricha KL, Ali HM, Stokken JK. State of the Art Medical Management of Nasal Polyps. Am J Rhinol Allergy 2023; 37:153-161. [PMID: 36848283 DOI: 10.1177/19458924221145256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
BACKGROUND Chronic rhinosinusitis with nasal polyposis (CRSwNP) is an inflammatory disease with a treatment goal of controlling symptoms and limiting disease burden. While endoscopic sinus surgery is effective for removing polyps and aerating sinuses, proper medical management remains necessary for reducing inflammation and limiting polyp recurrence. OBJECTIVE This article aims to summarize the literature regarding medical treatment of chronic rhinosinusitis with nasal polyposis, with a specific focus on developments in the past 5 years. METHODOLOGY We conducted a literature review using PubMed to identify studies assessing medical treatment strategies for patients with CRSwNP. Articles focusing on chronic rhinosinusitis without nasal polyposis were excluded unless specifically stated. Surgical treatment and biologic therapies for CRSwNP will be covered in subsequent chapters and are therefore not included. RESULTS Intranasal saline irrigations and topical steroids are mainstays of CRSwNP treatment in the pre-surgical, post-surgical, and maintenance phases of the disease. Alternative steroid delivery methods and adjunctive treatments with antibiotics, anti-leukotrienes, and other topical therapies have been investigated and may benefit certain patient populations, but convincing evidence does not exist to warrant addition of these treatments to the standard of care for CRSwNP. CONCLUSIONS Topical steroid therapy is clearly effective for CRSwNP, and recent studies demonstrate the safety and efficacy of high-dose nasal steroid rinses. Alternate delivery methods for local steroids may be useful for patients who are not responding to or who are noncompliant with conventional intranasal corticosteroid sprays and rinses. Future studies are needed to clarify if oral or topical antibiotics, oral anti-leukotrienes, or other novel therapies are significantly effective in decreasing symptoms and improving the quality of life in patients with CRSwNP.
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Affiliation(s)
- Kelly L Staricha
- Department of Otolaryngology-Head & Neck Surgery, Mayo Clinic, Rochester, MN, USA
| | - Hawa M Ali
- Department of Otolaryngology-Head & Neck Surgery, Mayo Clinic, Rochester, MN, USA
| | - Janalee K Stokken
- Department of Otolaryngology-Head & Neck Surgery, Mayo Clinic, Rochester, MN, USA
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CTRP9 Mitigates the Progression of Arteriovenous Shunt-Induced Pulmonary Artery Hypertension in Rats. Cardiovasc Ther 2021; 2021:4971300. [PMID: 34858521 PMCID: PMC8598355 DOI: 10.1155/2021/4971300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 12/30/2022] Open
Abstract
The present study is aimed at investigating the molecular mechanism of C1q/TNF-related protein 9 (CTRP9) and providing a new perspective in arteriovenous shunt-induced pulmonary arterial hypertension (PAH). PAH was established by an arteriovenous shunt placement performed in rats. Adenovirus(Ad)-CTRP9 and Ad-green fluorescent protein viral particles were injected into the rats through the tail vein. Following 12 weeks, the mean pulmonary arterial pressure (mPAP) and right ventricular systolic pressure (RVSP) were measured and morphological analysis was conducted to confirm the establishment of the PAH model. The systemic elevation of CTRP9 maintained pulmonary vascular homeostasis and protected the rats from dysfunctional and abnormal remodeling. CTRP9 attenuated the pulmonary vascular remodeling in the shunt group by decreasing the mPAP and RVSP, which was associated with suppressed inflammation, apoptosis, and extracellular matrix injury. In addition, CTRP9 dramatically increased the phosphorylation of AKT and p38-MAPK in the lung tissues of shunt-operated animals. These findings suggest a previously unrecognized effect of CTRP9 in pulmonary vascular homeostasis during PAH pathogenesis.
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Lee MJ, Agrahari G, Kim HY, An EJ, Chun KH, Kang H, Kim YS, Bang CW, Tak LJ, Kim TY. Extracellular Superoxide Dismutase Prevents Skin Aging by Promoting Collagen Production through the Activation of AMPK and Nrf2/HO-1 Cascades. J Invest Dermatol 2021; 141:2344-2353.e7. [PMID: 33836179 DOI: 10.1016/j.jid.2021.02.757] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/19/2021] [Accepted: 02/25/2021] [Indexed: 12/14/2022]
Abstract
With aging, the skin becomes thin and drastically loses collagen. Extracellular superoxide dismutase (EC-SOD), also known as superoxide dismutase (SOD) 3, is the major SOD in the extracellular matrix of the tissues and is well-known to maintain the reduction‒oxidation homeostasis and matrix components of such tissues. However, the role of EC-SOD in aging-associated reductions of skin thickness and collagen production is not well-studied. In this study, we compared the histological differences in the dorsal skin of EC-SOD‒overexpressing transgenic mice (Sod3+/+) of different age groups with that in wild-type mice and also determined the underlying signaling mechanism. Our data showed that the skin thickness in Sod3+/+ mice significantly increased with aging compared with that in wild-type male mice. Furthermore, Sod3+/+ mice had promoted collagen production through the activation of adenosine monophosphate-activated protein kinase and Nrf2/HO-1 pathways in aged mice. Interestingly, subcutaneous injection of adeno-associated virus‒overexpressing EC-SOD exhibited increased skin thickness and collagen expression. Furthermore, combined recombinant EC-SOD and dihydrotestosterone treatment synergistically elevated collagen production through the activation of TGFβ in human dermal fibroblasts. Altogether, these results showed that EC-SOD prevents skin aging by promoting collagen production in vivo and in vitro. Therefore, we propose that EC-SOD may be a potential therapeutic target for antiaging in the skin.
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Affiliation(s)
- Min Jung Lee
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Gaurav Agrahari
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hae-Young Kim
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eun-Joo An
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyung-Hee Chun
- Department of Biochemistry and Molecular Biology, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Hyeokgu Kang
- Department of Biochemistry and Molecular Biology, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Yeon-Soo Kim
- Department of New Drug Discovery and Development, Chungnam National University, Daejeon, Republic of Korea
| | - Chul Whan Bang
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Lee-Jung Tak
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Yoon Kim
- Laboratory of Dermato-Immunology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Yu Y, Li X, Mi J, Qu L, Yang D, Guo J, Qiu L. Resveratrol Suppresses Matrix Metalloproteinase-2 Activation Induced by Lipopolysaccharide in Mouse Osteoblasts via Interactions with AMP-Activated Protein Kinase and Suppressor of Cytokine Signaling 1. Molecules 2018; 23:molecules23092327. [PMID: 30213073 PMCID: PMC6225262 DOI: 10.3390/molecules23092327] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/04/2018] [Accepted: 09/08/2018] [Indexed: 12/18/2022] Open
Abstract
Porphyromonas endodontalis (P. endodontalis) lipopolysaccharide (LPS) is associated with the progression of bone resorption in periodontal and periapical diseases. Matrix metalloproteinase-2 (MMP-2) expression and activity are elevated in apical periodontitis and have been suggested to participate in bone resorption. Therefore, inhibiting MMP-2 activation may be considered a therapeutic strategy for treating apical periodontitis. Resveratrol is a natural non-flavonoid polyphenol that has been reported to have antioxidant, anti-cancer, and anti-inflammatory properties. However, the capacity of resveratrol to protect osteoblast cells from P. endodontalis LPS insults and the mechanism of its inhibitory effects on MMP-2 activation is poorly understood. Here, we demonstrate that cell viability is unchanged when 10 mg L−1P. endodontalis LPS is used, and MMP-2 expression is drastically induced by P. endodontalis LPS in a concentration- and time-dependent manner. Twenty micromolar resveratrol did not reduce MC3T3-E1 cell viability. Resveratrol increased AMP-activated protein kinase (AMPK) phosphorylation, and Compound C, a specific AMPK inhibitor, partially abolished the resveratrol-mediated phosphorylation of AMPK. In addition, AMPK inhibition blocked the effects of resveratrol on MMP-2 expression and activity in LPS-induced MC3T3-E1 cells. Treatment with resveratrol also induced suppressor of cytokine signaling 1 (SOCS1) expression in MC3T3-E1 cells. SOCS1 siRNA negated the inhibitory effects of resveratrol on LPS-induced MMP-2 production. Additionally, resveratrol-induced SOCS1 upregulation was reduced by treatment with compound C. These results demonstrate that AMPK and SOCS1 activation are important signaling events during resveratrol-mediated inhibition of MMP-2 production in response to LPS in MC3T3-E1 cells, and there is crosstalk between AMPK and SOCS1 signaling.
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Affiliation(s)
- Yaqiong Yu
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
- Liaoning Province Key Laboratory of Oral Diseases, Shenyang 110002, China.
| | - Xiaolin Li
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
| | - Jing Mi
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
| | - Liu Qu
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
| | - Di Yang
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
| | - Jiajie Guo
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
| | - Lihong Qiu
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110002, China.
- Liaoning Province Key Laboratory of Oral Diseases, Shenyang 110002, China.
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Psaltis AJ. Beyond Borders and Sinuses: Rhinology and Allergy Research on a World Stage. Am J Rhinol Allergy 2017. [DOI: 10.2500/ajra.2017.31.4493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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