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Bricher Choque PN, Porter MH, Teixeira MS, Dellê H, Elias RM, Durante B, Dutra MRH, Metz CN, Pavlov VA, Consolim Colombo FM. Cholinergic Stimulation Exerts Cardioprotective Effects and Alleviates Renal Inflammatory Responses after Acute Myocardial Infarction in Spontaneous Hypertensive Rats (SHRs). Pharmaceuticals (Basel) 2024; 17:547. [PMID: 38794117 PMCID: PMC11124479 DOI: 10.3390/ph17050547] [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: 03/07/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND In this investigation, we explored the effects of pharmacological cholinergic stimulation on cardiac function and renal inflammation following acute myocardial infarction (AMI) in spontaneously hypertensive rats (SHRs). METHODS Adult male SHRs were randomized into three experimental groups: sham-operated; AMI + Veh (infarcted, treated with vehicle); and AMI + PY (infarcted, treated with the cholinesterase inhibitor, pyridostigmine bromide (PY)-40 mg/kg, once daily for seven days). Rats were euthanized 7 or 30 days post-surgery. The clinical parameters were assessed on the day before euthanasia. Subsequent to euthanasia, blood samples were collected and renal tissues were harvested for histological and gene expression analyses aimed to evaluate inflammation and injury. RESULTS Seven days post-surgery, the AMI + PY group demonstrated improvements in left ventricular diastolic function and autonomic regulation, and a reduction in renal macrophage infiltration compared to the AMI + Veh group. Furthermore, there was a notable downregulation in pro-inflammatory gene expression and an upregulation in anti-inflammatory gene expression. Analysis 30 days post-surgery showed that PY treatment had a sustained positive effect on renal gene expression, correlated with a decrease in biomarkers, indicative of subclinical kidney injury. CONCLUSIONS Short-term cholinergic stimulation with PY provides both cardiac and renal protection by mitigating the inflammatory response after AMI.
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Affiliation(s)
- Pamela Nithzi Bricher Choque
- Department of Medicine, Universidade Nove de Julho (Uninove), São Paulo 01504-001, SP, Brazil; (P.N.B.C.); (M.H.P.); (H.D.); (R.M.E.); (M.R.H.D.)
| | - Maria Helena Porter
- Department of Medicine, Universidade Nove de Julho (Uninove), São Paulo 01504-001, SP, Brazil; (P.N.B.C.); (M.H.P.); (H.D.); (R.M.E.); (M.R.H.D.)
| | - Manuella S. Teixeira
- Hypertension Unit, Heart Institute, Medical School, University of São Paulo, São Paulo 05403-900, SP, Brazil; (M.S.T.); (B.D.)
| | - Humberto Dellê
- Department of Medicine, Universidade Nove de Julho (Uninove), São Paulo 01504-001, SP, Brazil; (P.N.B.C.); (M.H.P.); (H.D.); (R.M.E.); (M.R.H.D.)
| | - Rosilene Motta Elias
- Department of Medicine, Universidade Nove de Julho (Uninove), São Paulo 01504-001, SP, Brazil; (P.N.B.C.); (M.H.P.); (H.D.); (R.M.E.); (M.R.H.D.)
| | - Bruno Durante
- Hypertension Unit, Heart Institute, Medical School, University of São Paulo, São Paulo 05403-900, SP, Brazil; (M.S.T.); (B.D.)
| | - Marina Rascio Henriques Dutra
- Department of Medicine, Universidade Nove de Julho (Uninove), São Paulo 01504-001, SP, Brazil; (P.N.B.C.); (M.H.P.); (H.D.); (R.M.E.); (M.R.H.D.)
| | - Christine N. Metz
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY 11030, USA; (C.N.M.); (V.A.P.)
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11550, USA
| | - Valentin A. Pavlov
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY 11030, USA; (C.N.M.); (V.A.P.)
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11550, USA
| | - Fernanda M. Consolim Colombo
- Department of Medicine, Universidade Nove de Julho (Uninove), São Paulo 01504-001, SP, Brazil; (P.N.B.C.); (M.H.P.); (H.D.); (R.M.E.); (M.R.H.D.)
- Hypertension Unit, Heart Institute, Medical School, University of São Paulo, São Paulo 05403-900, SP, Brazil; (M.S.T.); (B.D.)
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Yao L, Liu Q, Lei Z, Sun T. Development and challenges of antimicrobial peptide delivery strategies in bacterial therapy: A review. Int J Biol Macromol 2023; 253:126819. [PMID: 37709236 DOI: 10.1016/j.ijbiomac.2023.126819] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023]
Abstract
The escalating global prevalence of antimicrobial resistance poses a critical threat, prompting concerns about its impact on public health. This predicament is exacerbated by the acute shortage of novel antimicrobial agents, a scarcity attributed to the rapid surge in bacterial resistance. This review delves into the realm of antimicrobial peptides, a diverse class of compounds ubiquitously present in plants and animals across various natural organisms. Renowned for their intrinsic antibacterial activity, these peptides provide a promising avenue to tackle the intricate challenge of bacterial resistance. However, the clinical utility of peptide-based drugs is hindered by limited bioavailability and susceptibility to rapid degradation, constraining efforts to enhance the efficacy of bacterial infection treatments. The emergence of nanocarriers marks a transformative approach poised to revolutionize peptide delivery strategies. This review elucidates a promising framework involving nanocarriers within the realm of antimicrobial peptides. This paradigm enables meticulous and controlled peptide release at infection sites by detecting dynamic shifts in microenvironmental factors, including pH, ROS, GSH, and reactive enzymes. Furthermore, a glimpse into the future reveals the potential of targeted delivery mechanisms, harnessing inflammatory responses and intricate signaling pathways, including adenosine triphosphate, macrophage receptors, and pathogenic nucleic acid entities. This approach holds promise in fortifying immunity, thereby amplifying the potency of peptide-based treatments. In summary, this review spotlights peptide nanosystems as prospective solutions for combating bacterial infections. By bridging antimicrobial peptides with advanced nanomedicine, a new therapeutic era emerges, poised to confront the formidable challenge of antimicrobial resistance head-on.
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Affiliation(s)
- Longfukang Yao
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China
| | - Qianying Liu
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhixin Lei
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
| | - Taolei Sun
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
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Iarkov A, Mendoza C, Echeverria V. Cholinergic Receptor Modulation as a Target for Preventing Dementia in Parkinson's Disease. Front Neurosci 2021; 15:665820. [PMID: 34616271 PMCID: PMC8488354 DOI: 10.3389/fnins.2021.665820] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 08/26/2021] [Indexed: 12/20/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative condition characterized by the loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc) in the midbrain resulting in progressive impairment in cognitive and motor abilities. The physiological and molecular mechanisms triggering dopaminergic neuronal loss are not entirely defined. PD occurrence is associated with various genetic and environmental factors causing inflammation and mitochondrial dysfunction in the brain, leading to oxidative stress, proteinopathy, and reduced viability of dopaminergic neurons. Oxidative stress affects the conformation and function of ions, proteins, and lipids, provoking mitochondrial DNA (mtDNA) mutation and dysfunction. The disruption of protein homeostasis induces the aggregation of alpha-synuclein (α-SYN) and parkin and a deficit in proteasome degradation. Also, oxidative stress affects dopamine release by activating ATP-sensitive potassium channels. The cholinergic system is essential in modulating the striatal cells regulating cognitive and motor functions. Several muscarinic acetylcholine receptors (mAChR) and nicotinic acetylcholine receptors (nAChRs) are expressed in the striatum. The nAChRs signaling reduces neuroinflammation and facilitates neuronal survival, neurotransmitter release, and synaptic plasticity. Since there is a deficit in the nAChRs in PD, inhibiting nAChRs loss in the striatum may help prevent dopaminergic neurons loss in the striatum and its pathological consequences. The nAChRs can also stimulate other brain cells supporting cognitive and motor functions. This review discusses the cholinergic system as a therapeutic target of cotinine to prevent cognitive symptoms and transition to dementia in PD.
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Affiliation(s)
- Alexandre Iarkov
- Laboratorio de Neurobiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile
| | - Cristhian Mendoza
- Laboratorio de Neurobiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile
| | - Valentina Echeverria
- Laboratorio de Neurobiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile.,Research & Development Service, Bay Pines VA Healthcare System, Bay Pines, FL, United States
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