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Liu K, Han B. Role of immune cells in the pathogenesis of myocarditis. J Leukoc Biol 2024; 115:253-275. [PMID: 37949833 DOI: 10.1093/jleuko/qiad143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/15/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023] Open
Abstract
Myocarditis is an inflammatory heart disease that mostly affects young people. Myocarditis involves a complex immune network; however, its detailed pathogenesis is currently unclear. The diversity and plasticity of immune cells, either in the peripheral blood or in the heart, have been partially revealed in a number of previous studies involving patients and several kinds of animal models with myocarditis. It is the complexity of immune cells, rather than one cell type that is the culprit. Thus, recognizing the individual intricacies within immune cells in the context of myocarditis pathogenesis and finding the key intersection of the immune network may help in the diagnosis and treatment of this condition. With the vast amount of cell data gained on myocarditis and the recent application of single-cell sequencing, we summarize the multiple functions of currently recognized key immune cells in the pathogenesis of myocarditis to provide an immune background for subsequent investigations.
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Affiliation(s)
- Keyu Liu
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Shandong University, Cheeloo Colledge of Medicine, No. 324 Jingwu Road, 250021, Jinan, China
| | - Bo Han
- Department of Pediatric Cardiology, Shandong Provincial Hospital, Shandong University, Cheeloo Colledge of Medicine, No. 324 Jingwu Road, 250021, Jinan, China
- Department of Pediatric Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324 Jingwu Road, 250021, Jinan, China
- Shandong Provincial Hospital, Shandong Provincial Clinical Research Center for Children' s Health and Disease office, No. 324 Jingwu Road, 250021, Jinan, China
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Di Florio D, Gorelov D, McCabe E, Beetler D, Shapiro K, Bruno K, Chekuri I, Jain A, Whelan E, Salomon G, Khatib S, Bonvie-Hill N, Giresi P, Balamurugan V, Weigel G, Fliess J, Darakjian A, Edenfield B, Kocsis C, McLeod C, Cooper L, Audet-Walsh E, Coronado M, Sin J, Fairweather D. Sex differences in mitochondrial gene expression during viral myocarditis. RESEARCH SQUARE 2023:rs.3.rs-3716881. [PMID: 38196574 PMCID: PMC10775395 DOI: 10.21203/rs.3.rs-3716881/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Background Myocarditis is an inflammation of the heart muscle most often caused by an immune response to viral infections. Sex differences in the immune response during myocarditis have been well described but upstream mechanisms in the heart that might influence sex differences in disease are not completely understood. Methods Male and female BALB/c wild type mice received an intraperitoneal injection of heart-passaged coxsackievirus B3 (CVB3) or vehicle control. Bulk-tissue RNA-sequencing was conducted to better understand sex differences in CVB3 myocarditis. We performed enrichment analysis to understand sex differences in the transcriptional landscape of myocarditis and identify candidate transcription factors that might drive sex differences in myocarditis. Results The hearts of male and female mice with myocarditis were significantly enriched for pathways related to an innate and adaptive immune response compared to uninfected controls. When comparing females to males with myocarditis, males were enriched for inflammatory pathways and gene changes that suggested worse mitochondrial transcriptional support (e.g., mitochondrial electron transport genes). In contrast, females were enriched for pathways related to mitochondrial respiration and bioenergetics, which were confirmed by higher transcript levels of master regulators of mitochondrial function including peroxisome proliferator-activated receptor gamma coactivator 1 (PGC1α), nuclear respiratory factor 1 (NRF1) and estrogen-related receptor alpha (ERRα). TRANSFAC analysis identified ERRa as a transcription factor that may mediate sex differences in mitochondrial function during myocarditis. Conclusions Master regulators of mitochondrial function were elevated in females with myocarditis compared to males and may promote sex differences in mitochondrial respiratory transcript expression during viral myocarditis resulting in less severe myocarditis in females following viral infection.
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Kang JH, Asai D, Toita R. Bisphenol A (BPA) and Cardiovascular or Cardiometabolic Diseases. J Xenobiot 2023; 13:775-810. [PMID: 38132710 PMCID: PMC10745077 DOI: 10.3390/jox13040049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Abstract
Bisphenol A (BPA; 4,4'-isopropylidenediphenol) is a well-known endocrine disruptor. Most human exposure to BPA occurs through the consumption of BPA-contaminated foods. Cardiovascular or cardiometabolic diseases such as diabetes, obesity, hypertension, acute kidney disease, chronic kidney disease, and heart failure are the leading causes of death worldwide. Positive associations have been reported between blood or urinary BPA levels and cardiovascular or cardiometabolic diseases. BPA also induces disorders or dysfunctions in the tissues associated with these diseases through various cell signaling pathways. This review highlights the literature elucidating the relationship between BPA and various cardiovascular or cardiometabolic diseases and the potential mechanisms underlying BPA-mediated disorders or dysfunctions in tissues such as blood vessels, skeletal muscle, adipose tissue, liver, pancreas, kidney, and heart that are associated with these diseases.
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Affiliation(s)
- Jeong-Hun Kang
- National Cerebral and Cardiovascular Center Research Institute, 6-1 Shinmachi, Kishibe, Osaka 564-8565, Japan
| | - Daisuke Asai
- Laboratory of Microbiology, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Tokyo 194-8543, Japan;
| | - Riki Toita
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Osaka 563-8577, Japan;
- AIST-Osaka University Advanced Photonics and Biosensing Open Innovation Laboratory, National Institute of Advanced Industrial Science and Technology (AIST), 2-1 Yamadaoka, Osaka 565-0871, Japan
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Beetler DJ, Bruno KA, Watkins MM, Xu V, Chekuri I, Giresi P, Di Florio DN, Whelan ER, Edenfield BH, Walker SA, Morales-Lara AC, Hill AR, Jain A, Auda ME, Macomb LP, Shapiro KA, Keegan KC, Wolfram J, Behfar A, Stalboerger PG, Terzic A, Farres H, Cooper LT, Fairweather D. Reconstituted Extracellular Vesicles from Human Platelets Decrease Viral Myocarditis in Mice. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303317. [PMID: 37612820 PMCID: PMC10840864 DOI: 10.1002/smll.202303317] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/11/2023] [Indexed: 08/25/2023]
Abstract
Patients with viral myocarditis are at risk of sudden death and may progress to dilated cardiomyopathy (DCM). Currently, no disease-specific therapies exist to treat viral myocarditis. Here it is examined whether reconstituted, lyophilized extracellular vesicles (EVs) from platelets from healthy men and women reduce acute or chronic myocarditis in male mice. Human-platelet-derived EVs (PEV) do not cause toxicity, damage, or inflammation in naïve mice. PEV administered during the innate immune response significantly reduces myocarditis with fewer epidermal growth factor (EGF)-like module-containing mucin-like hormone receptor-like 1 (F4/80) macrophages, T cells (cluster of differentiation molecules 4 and 8, CD4 and CD8), and mast cells, and improved cardiac function. Innate immune mediators known to increase myocarditis are decreased by innate PEV treatment including Toll-like receptor (TLR)4 and complement. PEV also significantly reduces perivascular fibrosis and remodeling including interleukin 1 beta (IL-1β), transforming growth factor-beta 1, matrix metalloproteinase, collagen genes, and mast cell degranulation. PEV given at days 7-9 after infection reduces myocarditis and improves cardiac function. MicroRNA (miR) sequencing reveals that PEV contains miRs that decrease viral replication, TLR4 signaling, and T-cell activation. These data show that EVs from the platelets of healthy individuals can significantly reduce myocarditis and improve cardiac function.
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Affiliation(s)
- Danielle J. Beetler
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota 55902, USA; Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA; Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, Minnesota 55902, USA
| | - Katelyn A. Bruno
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA; Division of Cardiovascular Medicine, University of Florida, Gainesville, Florida, 32608
| | - Molly M. Watkins
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota 55902, USA; Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA; Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, Minnesota 55902, USA
| | - Vivian Xu
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Isha Chekuri
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Presley Giresi
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Damian N. Di Florio
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota 55902, USA; Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA; Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, Minnesota 55902, USA
| | - Emily R. Whelan
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota 55902, USA; Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA; Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, Minnesota 55902, USA
| | | | - Sierra A. Walker
- Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, Minnesota 55902, USA; Department of Biochemistry and Molecular Biology, Rochester, Minnesota 55902, USA
| | | | - Anneliese R. Hill
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Angita Jain
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota 55902, USA; Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Matthew E. Auda
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Logan P. Macomb
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Kathryn A. Shapiro
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Kevin C. Keegan
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Joy Wolfram
- School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Atta Behfar
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota 55905, USA; Van Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative Medicine, Rochester, MN, USA
| | - Paul G. Stalboerger
- Van Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative Medicine, Rochester, MN, USA
| | - Andre Terzic
- Van Cleve Cardiac Regenerative Medicine Program, Mayo Clinic Center for Regenerative Medicine, Rochester, MN, USA; Department of Clinical Genomics, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Houssam Farres
- Department of Vascular Surgery, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - Leslie T. Cooper
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA
| | - DeLisa Fairweather
- Center for Clinical and Translational Science, Mayo Clinic, Rochester, Minnesota 55902, USA; Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, Florida 32224, USA; Department of Immunology, Mayo Clinic, Jacksonville, Florida 32224, USA
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Ritter AC, Ricart Arbona RJ, Mourino AJ, Palillo MB, Aydin M, Fahey JR, Lipman NS. Mechanical Washing Prevents Transmission of Bacterial, Viral, and Protozoal Murine Pathogens from Cages. JOURNAL OF THE AMERICAN ASSOCIATION FOR LABORATORY ANIMAL SCIENCE : JAALAS 2023; 62:131-138. [PMID: 36746440 PMCID: PMC10078927 DOI: 10.30802/aalas-jaalas-22-000105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/01/2022] [Accepted: 12/20/2022] [Indexed: 02/08/2023]
Abstract
Infectious agents have varying susceptibilities to thermal inactivation and/or mechanical removal from cages by the use of heated, pressurized water. In this study, we tested whether 5 specific infectious organisms (Candidatus savagella [segmented filamentous bacterium (SFB)], Helicobacter sp., mouse norovirus (MNV), Tritrichomonas sp., and Entamoeba muris) could survive the cage wash process and still infect naïve mice. These 5 organisms were chosen due to their prevalence in rodent colonies, environmental stability, and/or potential to influence experimental outcomes. Cages that had housed mice shedding all 5 organisms were assigned to 1 of 3 treatment groups: 1) sanitization in a tunnel washer followed by autoclaving (121 °C [250 °F] for 20 min; n = 40 cages); 2) sanitization in a tunnel washer (82 °C [180 °F] for an average of 30 s; n = 40 cages); or 3) control (bedding change only; n = 40 cages). The presence of these agents in the cage was assessed by performing PCR on swabs of the empty soiled cage interior before and after the treatment. In addition, to determine if any residual nucleic acid was infectious, 2 Swiss outbred (J:ARC(S)) female mice were housed for 7 d in cages from each treatment group. The above procedures were then repeated so that every week each pair of J:ARC(S) mice ( n = 10 pairs of mice/treatment group) were housed in another cage that underwent the same treatment; this was done for a total of 4 consecutive, 1-wk-long periods. Swabs collected from soiled cages were PCR-positive for SFB, Helicobacter, MNV, Tritrichomonas, and Entamoeba in 99%, 97%, 39%, 63%, and 73% of the cages tested, respectively. Cages in the tunnel wash group that were PCR-positive for SFB, Helicobacter, Tritrichomonas, and Entamoeba before treatment remained PCR-positive in 8%, 15%, 43%, and 10% of positive cages, respectively. None of the cages from the autoclave group were PCR-positive for any of the agents after treatment. None of the mice housed in cages in either the autoclave or tunnel wash groups became infected with any of the agents. However, 80%, 60%, and 100% of the pairs of mice housed in untreated cages were PCR-positive for SFB, MNV, and Entamoeba, respectively. None of the mice housed in untreated cages were positive for Helicobacter or Tritrichomonas. Our results suggest that nucleic acids from these bacterial and protozoal organisms may remain in cages after mechanical cage washing, but these nucleic acids are not infectious, and autoclaving is not necessary to prevent transmission.
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Affiliation(s)
- Amanda C Ritter
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York; Center for Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York;,
| | - Rodolfo J Ricart Arbona
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York; Center for Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York
| | | | - Michael B Palillo
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York
| | - Mert Aydin
- The Jackson Laboratory, Bar Harbor, Maine
| | | | - Neil S Lipman
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York; Center for Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York;,
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Krishnarao K, Bruno KA, Di Florio DN, Edenfield BH, Whelan ER, Macomb LP, McGuire MM, Hill AR, Ray JC, Cornell LF, Tan W, Geiger XJ, Salomon GR, Douglass EJ, Fairweather D, Yamani MH. Upregulation of Endothelin-1 May Predict Chemotherapy-Induced Cardiotoxicity in Women with Breast Cancer. J Clin Med 2022; 11:jcm11123547. [PMID: 35743613 PMCID: PMC9224558 DOI: 10.3390/jcm11123547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/10/2022] [Accepted: 06/11/2022] [Indexed: 02/04/2023] Open
Abstract
As survival in breast cancer patients from newer therapies increases, concerns for chemotherapy-induced cardiotoxicity (CIC) have offset some of these benefits, manifesting as a decline in left ventricular ejection fraction (LVEF). Patients receiving anthracycline-based chemotherapy followed by trastuzumab are at risk for CIC. Previous research evaluating whether clinical biomarkers predict cardiotoxicity has been inconsistent. Recently, angiotensin II type 1 receptor (ATR1) and endothelin 1 (ET1) have been shown to play a role in breast tumor growth. We evaluated ATR1 and ET1 expression in breast cancer tissue and its association with CIC. A total of 33 paraffin-embedded breast tissue specimens from women with breast cancer treated with anthracycline-based chemotherapy and trastuzumab were analyzed by immunohistochemistry (IHC) and qRT-PCR. We found that ET1 expression was increased in patients with an LVEF ≤ 50% (p = 0.032) with a lower LVEF correlating with higher ET1 expression (r = 0.377, p = 0.031). In patients with a change in LVEF of greater than 10%, greater ET1 expression was noted compared to those without a change in LVEF (p = 0.017). Increased ET1 expression in breast tumor tissue is associated with reduced LVEF. Future studies need to examine whether ET1 may be a tissue biomarker that helps predict the risk of developing CIC in women with breast cancer.
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Affiliation(s)
- Krithika Krishnarao
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
- Department of Cardiovascular Medicine, Ochsner Health, New Orleans, LA 70121, USA
- Correspondence: ; Tel.: +1-504-842-9780
| | - Katelyn A. Bruno
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
- Center for Clinical and Translational Science, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Damian N. Di Florio
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
- Center for Clinical and Translational Science, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | - Emily R. Whelan
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
| | - Logan P. Macomb
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
| | - Molly M. McGuire
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
| | - Anneliese R. Hill
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
| | - Jordan C. Ray
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
| | - Lauren F. Cornell
- Department of Oncology, Mayo Clinic, Jacksonville, FL 32224, USA; (L.F.C.); (W.T.)
| | - Winston Tan
- Department of Oncology, Mayo Clinic, Jacksonville, FL 32224, USA; (L.F.C.); (W.T.)
| | | | - Gary R. Salomon
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
| | - Erika J. Douglass
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
| | - DeLisa Fairweather
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
- Center for Clinical and Translational Science, Mayo Clinic, Jacksonville, FL 32224, USA
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, Baltimore, MD 21205, USA
| | - Mohamad H. Yamani
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL 32224, USA; (K.A.B.); (D.N.D.F.); (E.R.W.); (L.P.M.); (M.M.M.); (A.R.H.); (J.C.R.); (G.R.S.); (E.J.D.); (D.F.); (M.H.Y.)
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Effect of Ghrelin Intervention on the Ras/ERK Pathway in the Regulation of Heart Failure by PTEN. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:1045681. [PMID: 35082908 PMCID: PMC8786517 DOI: 10.1155/2022/1045681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/27/2021] [Indexed: 11/17/2022]
Abstract
Objective. To study the possible mechanism of ghrelin in heart failure and how it works. Method. In vitro results demonstrated that ghrelin alleviates cardiac function and reduces myocardial fibrosis in rats with heart failure. Moreover, ghrelin intervention increased PTEN expression level and reduced ERK, c-jun, and c-Fos expression level; in vivo experiments demonstrated that ghrelin intervention reduces mast memory expression and increases cardiomyocyte surface area, PTEN expression level, ERK, c-jun, c-Fos expression level, and cell surface area, while ERK blockade suppresses mast gene expression and reduces cell surface area. Results. In vitro experimental results prove that we have successfully constructed a rat model related to heart failure, and ghrelin can alleviate the heart function of heart failure rats and reduce myocardial fibrosis. In addition, ghrelin is closely related to the decrease of the expression levels of ERK, c-jun, and c-Fos, but it can also increase the expression of PTEN in the rat model; in vivo experiments proved that we successfully constructed an in vitro cardiac hypertrophy model, and the intervention of ghrelin would reduce the expression of hypertrophic memory and increase the surface area of cardiomyocytes, increase the expression level of PTEN, and reduce the expression levels of ERK, c-jun, and c-Fos, while the blockade of PTEN will increase the expression of hypertrophy genes and increase the cell surface area, while the blockade of ERK will increase the expression of hypertrophic genes, which in turn will make the cell surface area reducing. Conclusion. Ghrelin inhibits the phosphorylation and nuclear entry of ERK by activating PTEN, thereby controlling the transcription of hypertrophic genes, improving myocardial hypertrophy, and enhancing cardiac function.
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