1
|
Zhao J, Yan S, Li M, Sun L, Dong M, Yin M, Shen J, Zhao Z. NPFR regulates the synthesis and metabolism of lipids and glycogen via AMPK: Novel targets for efficient corn borer management. Int J Biol Macromol 2023; 247:125816. [PMID: 37451386 DOI: 10.1016/j.ijbiomac.2023.125816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
RNA biopesticides are regarded as "the third revolution in the history of pesticides" due to their extensive advantages such as precision, high efficiency, green, pollution-free, etc. In the current study, two target genes encoding neuropeptide F receptor (NPFR) and AMP-activated protein kinase (AMPK), which are essential for insect feeding, cellular energy homeostasis and nutrient availability, were selected to design RNA pesticides. We achieved high RNA interference (RNAi) efficiency of npfr via a star polycation nanocarrier-based double-stranded RNA (dsRNA) delivery system. The food consumption of Ostrinia furnacalis is largely suppressed, which leads to a good protective effect on corn leaves. We determined the mechanism of the above genes. NPFR binds to the Gα protein and activates the intracellular second messengers cAMP and Ca2+, which in turn phosphorylate AMPK to regulate the synthesis and metabolism of lipids and glycogen. We then adopted a highly efficient bacteria-based expression system for the production of large amounts of dsRNA segments targeting npfr and ampk simultaneously and subsequently complexed them with nanocarriers to develop a novel dual-target RNA pesticide. Our RNA nanopesticide dramatically inhibits larval feeding, growth and development, and its controlling effect is even better than that of the widely used anti-feedant azadirachtin.
Collapse
Affiliation(s)
- Jiajia Zhao
- Department of Entomology and MARA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, PR China
| | - Shuo Yan
- Department of Entomology and MARA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, PR China
| | - Mingshan Li
- Department of Entomology and MARA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, PR China
| | - Lina Sun
- Department of Entomology and MARA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, PR China
| | - Min Dong
- Department of Entomology and MARA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, PR China
| | - Meizhen Yin
- State Key Lab of Chemical Resource Engineering, Beijing Lab of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Jie Shen
- Department of Entomology and MARA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, PR China.
| | - Zhangwu Zhao
- Department of Entomology and MARA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, PR China.
| |
Collapse
|
2
|
Wilson C, Zi M, Smith M, Hussain M, D’Souza A, Dobrzynski H, Boyett MR. Atrioventricular node dysfunction in pressure overload-induced heart failure—Involvement of the immune system and transcriptomic remodelling. Front Pharmacol 2023; 14:1083910. [PMID: 37081960 PMCID: PMC10110994 DOI: 10.3389/fphar.2023.1083910] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 03/13/2023] [Indexed: 04/07/2023] Open
Abstract
Heart failure is associated with atrioventricular (AV) node dysfunction, and AV node dysfunction in the setting of heart failure is associated with an increased risk of mortality and heart failure hospitalisation. This study aims to understand the causes of AV node dysfunction in heart failure by studying changes in the whole nodal transcriptome. The mouse transverse aortic constriction model of pressure overload-induced heart failure was studied; functional changes were assessed using electrocardiography and echocardiography and the transcriptome of the AV node was quantified using RNAseq. Heart failure was associated with a significant increase in the PR interval, indicating a slowing of AV node conduction and AV node dysfunction, and significant changes in 3,077 transcripts (5.6% of the transcriptome). Many systems were affected: transcripts supporting AV node conduction were downregulated and there were changes in transcripts identified by GWAS as determinants of the PR interval. In addition, there was evidence of remodelling of the sarcomere, a shift from fatty acid to glucose metabolism, remodelling of the extracellular matrix, and remodelling of the transcription and translation machinery. There was evidence of the causes of this widespread remodelling of the AV node: evidence of dysregulation of multiple intracellular signalling pathways, dysregulation of 109 protein kinases and 148 transcription factors, and an immune response with a proliferation of neutrophils, monocytes, macrophages and B lymphocytes and a dysregulation of 40 cytokines. In conclusion, inflammation and a widespread transcriptional remodelling of the AV node underlies AV node dysfunction in heart failure.
Collapse
Affiliation(s)
- Claire Wilson
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom
- Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Min Zi
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom
| | - Matthew Smith
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom
| | - Munir Hussain
- Faculty of Life Sciences, University of Bradford, Bradford, United Kingdom
| | - Alicia D’Souza
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom
| | - Halina Dobrzynski
- Division of Cardiovascular Sciences, University of Manchester, Manchester, United Kingdom
- Department of Anatomy, Jagiellonian University Medical College, Kraków, Poland
- *Correspondence: Halina Dobrzynski, ; Mark R. Boyett,
| | - Mark R. Boyett
- Faculty of Life Sciences, University of Bradford, Bradford, United Kingdom
- *Correspondence: Halina Dobrzynski, ; Mark R. Boyett,
| |
Collapse
|
3
|
AlTamimi JZ, AlFaris NA, Alshammari GM, Alagal RI, Aljabryn DH, Yahya MA. The Protective Effect of 11-Keto-β-Boswellic Acid against Diabetic Cardiomyopathy in Rats Entails Activation of AMPK. Nutrients 2023; 15:nu15071660. [PMID: 37049501 PMCID: PMC10097356 DOI: 10.3390/nu15071660] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/25/2023] [Accepted: 03/25/2023] [Indexed: 04/03/2023] Open
Abstract
This study examined the protective effect of 11-keto-β-boswellic acid (AKBA) against streptozotocin (STZ)-induced diabetic cardiomyopathy (DC) in rats and examined the possible mechanisms of action. Male rats were divided into 5 groups (n = 8/each): (1) control, AKBA (10 mg/kg, orally), STZ (65 mg/kg, i.p.), STZ + AKBA (10 mg/kg, orally), and STZ + AKBA + compound C (CC/an AMPK inhibitor, 0.2 mg/kg, i.p.). AKBA improved the structure and the systolic and diastolic functions of the left ventricles (LVs) of STZ rats. It also attenuated the increase in plasma glucose, plasma insulin, and serum and hepatic levels of triglycerides (TGs), cholesterol (CHOL), and free fatty acids (FFAs) in these diabetic rats. AKBA stimulated the ventricular activities of phosphofructokinase (PFK), pyruvate dehydrogenase (PDH), and acetyl CoA carboxylase (ACC); increased levels of malonyl CoA; and reduced levels of carnitine palmitoyltransferase I (CPT1), indicating improvement in glucose and FA oxidation. It also reduced levels of malondialdehyde (MDA); increased mitochondria efficiency and ATP production; stimulated mRNA, total, and nuclear levels of Nrf2; increased levels of glutathione (GSH), heme oxygenase (HO-1), superoxide dismutase (SOD), and catalase (CAT); but reduced the expression and nuclear translocation of NF-κB and levels of tumor-necrosis factor-α (TNF-α) and interleukin-6 (IL-6). These effects were concomitant with increased activities of AMPK in the LVs of the control and STZ-diabetic rats. Treatment with CC abolished all these protective effects of AKBA. In conclusion, AKBA protects against DC in rats, mainly by activating the AMPK-dependent control of insulin release, cardiac metabolism, and antioxidant and anti-inflammatory effects.
Collapse
|
4
|
Sharma A, Mah M, Ritchie RH, De Blasio MJ. The adiponectin signalling pathway - A therapeutic target for the cardiac complications of type 2 diabetes? Pharmacol Ther 2021; 232:108008. [PMID: 34610378 DOI: 10.1016/j.pharmthera.2021.108008] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/17/2021] [Accepted: 09/23/2021] [Indexed: 12/11/2022]
Abstract
Diabetes is associated with an increased risk of heart failure (HF). This is commonly termed diabetic cardiomyopathy and is often characterised by increased cardiac fibrosis, pathological hypertrophy, increased oxidative and endoplasmic reticulum stress as well as diastolic dysfunction. Adiponectin is a cardioprotective adipokine that is downregulated in settings of type 2 diabetes (T2D) and obesity. Furthermore, both adiponectin receptors (AdipoR1 and R2) are also downregulated in these settings which further results in impaired cardiac adiponectin signalling and reduced cardioprotection. In many cardiac pathologies, adiponectin signalling has been shown to protect against cardiac remodelling and lipotoxicity, however its cardioprotective actions in T2D-induced cardiomyopathy remain unresolved. Diabetic cardiomyopathy has historically lacked effective treatment options. In this review, we summarise the current evidence for links between the suppressed adiponectin signalling pathway and cardiac dysfunction, in diabetes. We describe adiponectin receptor-mediated signalling pathways that are normally associated with cardioprotection, as well as current and potential future therapeutic approaches that could target this pathway as possible interventions for diabetic cardiomyopathy.
Collapse
Affiliation(s)
- Abhipree Sharma
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Michael Mah
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Rebecca H Ritchie
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; Department of Pharmacology, Monash University, Clayton, VIC 3800, Australia; Department of Medicine, Monash University, Clayton, VIC 3800, Australia
| | - Miles J De Blasio
- Heart Failure Pharmacology, Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia; Department of Pharmacology, Monash University, Clayton, VIC 3800, Australia.
| |
Collapse
|
5
|
Osataphan N, Phrommintikul A, Chattipakorn SC, Chattipakorn N. Effects of doxorubicin-induced cardiotoxicity on cardiac mitochondrial dynamics and mitochondrial function: Insights for future interventions. J Cell Mol Med 2020; 24:6534-6557. [PMID: 32336039 PMCID: PMC7299722 DOI: 10.1111/jcmm.15305] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/30/2019] [Accepted: 09/17/2019] [Indexed: 12/22/2022] Open
Abstract
Anthracyclines is an effective chemotherapeutic treatment used for many types of cancer. However, high cumulative dosage of anthracyclines leads to cardiac toxicity and heart failure. Dysregulation of mitochondrial dynamics and function are major pathways driving this toxicity. Several pharmacological and non‐pharmacological interventions aiming to attenuate cardiac toxicity by targeting mitochondrial dynamics and function have shown beneficial effects in cell and animal models. However, in clinical practice, there is currently no standard therapy for the prevention of anthracycline‐induced cardiotoxicity. This review summarizes current reports on the impact of anthracyclines on cardiac mitochondrial dynamics and mitochondrial function and potential interventions targeting these pathways. The roles of mitochondrial dynamics and mitochondrial function in the development of anthracycline‐induced cardiotoxicity should provide insights in devising novel strategies to attenuate the cardiac toxicity induced by anthracyclines.
Collapse
Affiliation(s)
- Nichanan Osataphan
- Division of Cardiology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Arintaya Phrommintikul
- Division of Cardiology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand.,Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| |
Collapse
|
6
|
Hong J, Mei C, Abbas Raza SH, Khan R, Cheng G, Zan L. SIRT6 cooperates with SIRT5 to regulate bovine preadipocyte differentiation and lipid metabolism via the AMPKα signaling pathway. Arch Biochem Biophys 2020; 681:108260. [PMID: 31926163 DOI: 10.1016/j.abb.2020.108260] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/10/2019] [Accepted: 01/04/2020] [Indexed: 12/29/2022]
Abstract
Preadipocyte differentiation and lipid synthesis are critical steps for intramuscular fat (IMF) deposition and lipid metabolism homeostasis. IMF content of beef not only determines the ratio of muscle to adipose, but also determines the beef quality, flavor, and sensory characteristics. Maintaining lipid metabolism homeostasis is the key means of preventing and treating diabetes, obesity, and other metabolic diseases. SIRT6, which is an ADP-ribosyltransferase and NAD+-dependent deacetylase of acetyl and long-chain fatty acyl groups, playing central roles in lipid and glucose metabolism, is closely related to the occurrence of diabetes and obesity caused by overnutrition and aging. This study was based on bovine preadipocyte differentiation and an obese mice model, and comprehensively used transcriptome sequencing (RNA-seq) and morphological identification methods to explore the effects of inhibition of SIRT6 on differentiation and lipid synthesis, and related molecular mechanisms. Additionally, the feedback synergistic regulation of SIRT5 and SIRT6 on differentiation and lipid deposition was analyzed. The results showed that in the differentiation process of bovine preadipocytes, inhibition of SIRT5 significantly promoted SIRT6 expression. In addition, SIRT6 inhibited bovine preadipocyte differentiation and lipid synthesis, cooperating with SIRT5 to decrease lipid deposition, and repressed cell cycle arrest of preadipocytes. Moreover, in vivo verification experiments also obtained consistent results. Furthermore, SIRT6 inhibited preadipocyte differentiation and lipid deposition by activating the adenosine monophosphate activated protein kinase alpha (AMPKα) pathway. The above results provided a novel approach for understanding the functions of SIRT6 in regulating bovine adipocyte differentiation and lipid metabolism, as well as a new target for the treatment of diabetes and obesity in a clinical setting.
Collapse
Affiliation(s)
- Jieyun Hong
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Chugang Mei
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China; National Beef Cattle Improvement Center, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Sayed Haidar Abbas Raza
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Rajwali Khan
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Gong Cheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China; National Beef Cattle Improvement Center, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, China; National Beef Cattle Improvement Center, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| |
Collapse
|
7
|
Nellaiappan K, Yerra VG, Kumar A. Role of AMPK in Diabetic Cardiovascular Complications: An Overview. Cardiovasc Hematol Disord Drug Targets 2018; 19:5-13. [PMID: 29737267 DOI: 10.2174/1871529x18666180508104929] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 12/22/2017] [Accepted: 03/28/2018] [Indexed: 12/25/2022]
Abstract
Macrovascular complications of diabetes like cardiovascular diseases appear to be one of the leading causes of mortality. Current therapies aimed at counteracting the adverse effects of diabetes on cardiovascular system are found to be inadequate. Hence, there is a growing need in search of novel targets. Adenosine Monophosphate Activated Protein Kinase (AMPK) is one such promising target, as a plethora of evidences pointing to its cardioprotective role in pathological milieu like cardiac hypertrophy, atherosclerosis and heart failure. AMPK is a serine-threonine kinase, which gets activated in response to a cellular depriving energy status. It orchestrates cellular metabolic response to energy demand and is, therefore, often referred to as "metabolic master switch" of the cell. In this review, we provide an overview of patho-mechanisms of diabetic cardiovascular disease; highlighting the role of AMPK in the regulation of this condition, followed by a description of extrinsic modulators of AMPK as potential therapeutic tools.
Collapse
Affiliation(s)
- Karthika Nellaiappan
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Bala Nagar, Hyderabad, TS, India
| | - Veera Ganesh Yerra
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Bala Nagar, Hyderabad, TS, India
| | - Ashutosh Kumar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)- Hyderabad, Bala Nagar, Hyderabad, TS, India
| |
Collapse
|