Abstract
Ghrelin is a gut hormone that stimulates food intake. In physiological conditions, ghrelin plasma levels rise with fasting and decrease after meals. Obese individuals have low fasting ghrelin levels that rise after food restriction, which is pointed out as a reason for the difficulty in maintaining weight loss. Some bariatric surgery procedures prevent rise in ghrelin levels with weight loss and this has been hypothesised to contribute to the long-term success of the treatment.
The main goal of this study was to develop a safe and effective anti-ghrelin vaccine for obesity, through the chemical conjugation of ghrelin with a virus like particle, namely NS1 protein tubules from the Bluetongue Virus (BTV) using a hetero-bifunctional cross linker.
Male adult C57BL/6 mice, with a normal weight and with diet-induced obesity (DIO), were randomized into six weight matched groups (n=6/group) and each group of mice received three intra-peritoneal injections with two weeks intervals, containing either 75 μg of ghrelin- NS1 immunoconjugate, 75 μg of NS1 or PBS. Our data show that immunized animals present increasing titres of anti-ghrelin antibodies, while their cumulative food intake significantly decreased and energy expenditure was significantly enhanced, although there were no significative changes in body weight.Vaccinated DIO mice also displayed significant decrease of NPY gene expression in the basal hypothalamus reflecting a decrease in central orexigenic signals.
This study suggests that this anti-ghrelin vaccine has a positive impact on energy homeostasis and may be an additional therapeutical tool to be used with diet and exercise for obesity treatment.
Keywords: obesity, ghrelin, vaccine, virus-like particles, treatment.
Current Pharmaceutical Design
Title:Immunization Against Active Ghrelin Using Virus-Like Particles for Obesity Treatment
Volume: 19 Issue: 36
Author(s): Sara Andrade, Filipa Pinho, Andreia M. Ribeiro, Marcos Carreira, Felipe F. Casanueva, Polly Roy and Mariana P. Monteiro
Affiliation:
Keywords: obesity, ghrelin, vaccine, virus-like particles, treatment.
Abstract: Ghrelin is a gut hormone that stimulates food intake. In physiological conditions, ghrelin plasma levels rise with fasting and decrease after meals. Obese individuals have low fasting ghrelin levels that rise after food restriction, which is pointed out as a reason for the difficulty in maintaining weight loss. Some bariatric surgery procedures prevent rise in ghrelin levels with weight loss and this has been hypothesised to contribute to the long-term success of the treatment.
The main goal of this study was to develop a safe and effective anti-ghrelin vaccine for obesity, through the chemical conjugation of ghrelin with a virus like particle, namely NS1 protein tubules from the Bluetongue Virus (BTV) using a hetero-bifunctional cross linker.
Male adult C57BL/6 mice, with a normal weight and with diet-induced obesity (DIO), were randomized into six weight matched groups (n=6/group) and each group of mice received three intra-peritoneal injections with two weeks intervals, containing either 75 μg of ghrelin- NS1 immunoconjugate, 75 μg of NS1 or PBS. Our data show that immunized animals present increasing titres of anti-ghrelin antibodies, while their cumulative food intake significantly decreased and energy expenditure was significantly enhanced, although there were no significative changes in body weight.Vaccinated DIO mice also displayed significant decrease of NPY gene expression in the basal hypothalamus reflecting a decrease in central orexigenic signals.
This study suggests that this anti-ghrelin vaccine has a positive impact on energy homeostasis and may be an additional therapeutical tool to be used with diet and exercise for obesity treatment.
Export Options
About this article
Cite this article as:
Andrade Sara, Pinho Filipa, Ribeiro M. Andreia, Carreira Marcos, Casanueva F. Felipe, Roy Polly and Monteiro P. Mariana, Immunization Against Active Ghrelin Using Virus-Like Particles for Obesity Treatment, Current Pharmaceutical Design 2013; 19 (36) . https://dx.doi.org/10.2174/13816128113199990506
DOI https://dx.doi.org/10.2174/13816128113199990506 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
Call for Papers in Thematic Issues
"Tuberculosis Prevention, Diagnosis and Drug Discovery"
The Nobel Prize-winning discoveries of Mycobacterium tuberculosis and streptomycin have enabled an appropriate diagnosis and an effective treatment of tuberculosis (TB). Since then, many newer diagnosis methods and drugs have been saving millions of lives. Despite advances in the past, TB is still a leading cause of infectious disease mortality ...read more
Current Pharmaceutical challenges in the treatment and diagnosis of neurological dysfunctions
Neurological dysfunctions (MND, ALS, MS, PD, AD, HD, ALS, Autism, OCD etc..) present significant challenges in both diagnosis and treatment, often necessitating innovative approaches and therapeutic interventions. This thematic issue aims to explore the current pharmaceutical landscape surrounding neurological disorders, shedding light on the challenges faced by researchers, clinicians, and ...read more
Emerging and re-emerging diseases
Faced with a possible endemic situation of COVID-19, the world has experienced two important phenomena, the emergence of new infectious diseases and/or the resurgence of previously eradicated infectious diseases. Furthermore, the geographic distribution of such diseases has also undergone changes. This context, in turn, may have a strong relationship with ...read more
Melanoma and Non-Melanoma Skin Cancer Treatment: Standard of Care and Recent Advances
In this thematic issue, we aim to provide a standard of care of the diagnosis and treatment of melanoma and non-melanoma skin cancer. The editor will invite authors from different countries who will write review articles of melanoma and non-melanoma skin cancers. The Diagnosis, Staging, Surgical Treatment, Non-Surgical Treatment all ...read more
- Author Guidelines
- Graphical Abstracts
- Fabricating and Stating False Information
- Research Misconduct
- Post Publication Discussions and Corrections
- Publishing Ethics and Rectitude
- Increase Visibility of Your Article
- Archiving Policies
- Peer Review Workflow
- Order Your Article Before Print
- Promote Your Article
- Manuscript Transfer Facility
- Editorial Policies
- Allegations from Whistleblowers
- Announcements
Related Articles
-
Antiplatelet Therapies: Aspirin at the Heart of New Directions
Cardiovascular & Hematological Disorders-Drug Targets High Resolution M-mode Evaluation of Jugular Vein Valves in Patients with Neurological and Neurosensory Disorders
Current Neurovascular Research Patents on Nanoparticulate Drug Delivery Systems - A Review
Recent Patents on Drug Delivery & Formulation Neuromuscular Disorders in Left Ventricular Hypertrabeculation/Noncompaction
Current Pharmaceutical Design Proteinase-Activated Receptor 2 (PAR2): A Challenging New Target for Treatment of Vascular Diseases
Current Pharmaceutical Design Conformation and Bioactivity. Design and Discovery of Novel Antihypertensive Drugs
Current Topics in Medicinal Chemistry The ACE2-Ang-(1-7)-Mas Axis and Cardioprotection
Current Cardiology Reviews Pulmonary Hypertension: Current Therapy and Future Prospects
Cardiovascular & Hematological Agents in Medicinal Chemistry Nitric Oxide and Cyclic GMP Signaling Pathway as a Focus for Drug Development
Current Medicinal Chemistry Homocysteine, Cardiovascular Inflammation, and Myocardial Remodeling
Cardiovascular & Hematological Disorders-Drug Targets Targeting Potassium Channels: New Advances in Cardiovascular Therapy
Recent Patents on Cardiovascular Drug Discovery Tyrosine Kinase Inhibitors for the Treatment of Rheumatoid Arthritis
Current Topics in Medicinal Chemistry Structure Based Drug Design of Angiotensin-I Converting Enzyme Inhibitors
Current Medicinal Chemistry Role of Nitrosative Stress and Activation of Poly(ADP-ribose) Polymerase-1 in Cardiovascular Failure Associated with Septic and Hemorrhagic Shock
Current Vascular Pharmacology Herbal Medicine of the 21st Century: A Focus on the Chemistry, Pharmacokinetics and Toxicity of Five Widely Advocated Phytotherapies
Current Topics in Medicinal Chemistry Use and Results of Antidepressant Treatment: Patients' Perception
Current Drug Therapy Monitoring and Surveillance of Obesity in the United States
Current Nutrition & Food Science New Strategies in the Management of Children and Adolescents with Proliferative Lupus Nephritis
Current Rheumatology Reviews Clinical Implications of Non-Invasive Measurement of Central Aortic Blood Pressure
Current Vascular Pharmacology The Effect of Local Alcohol Delivery in Reducing Intimal Hyperplasia Induced by Vascular Injury and the Clinical Implications
Vascular Disease Prevention (Discontinued)