scholarly journals MicroRNAs: The Link Between the Metabolic Syndrome and Oncogenesis

2021 ◽  
Vol 22 (12) ◽  
pp. 6337
Author(s):  
Adriana Fodor ◽  
Andrada Luciana Lazar ◽  
Cristina Buchman ◽  
Brandusa Tiperciuc ◽  
Olga Hilda Orasan ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
Cancer Progression ◽  
The Metabolic Syndrome ◽  
Cancer Pathogenesis ◽  
Non Coding Rna ◽  
Target Therapies ◽  
Inflammatory State ◽  
Type Two Diabetes

Metabolic syndrome (MetS) represents a cluster of disorders that increase the risk of a plethora of conditions, in particular type two diabetes, cardiovascular diseases, and certain types of cancers. MetS is a complex entity characterized by a chronic inflammatory state that implies dysregulations of adipokins and proinflammatory cytokins together with hormonal and growth factors imbalances. Of great interest is the implication of microRNA (miRNA, miR), non-coding RNA, in cancer genesis, progression, and metastasis. The adipose tissue serves as an important source of miRs, which represent a novel class of adipokines, that play a crucial role in carcinogenesis. Altered miRs secretion in the adipose tissue, in the context of MetS, might explain their implication in the oncogenesis. The interplay between miRs expressed in adipose tissue, their dysregulation and cancer pathogenesis are still intriguing, taking into consideration the fact that miRNAs show both carcinogenic and tumor suppressor effects. The aim of our review was to discuss the latest publications concerning the implication of miRs dysregulation in MetS and their significance in tumoral signaling pathways. Furthermore, we emphasized the role of miRNAs as potential target therapies and their implication in cancer progression and metastasis.

scholarly journals Exercise Induced Adipokine Changes and the Metabolic Syndrome

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Saeid Golbidi ◽  
Ismail Laher
Keyword(s):  
Physical Activity ◽  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
The Body ◽  
Beneficial Effects ◽  
The Metabolic Syndrome ◽  
Before And After ◽  
Inflammatory State ◽  
Exercise Induced

The lack of adequate physical activity and obesity created a worldwide pandemic. Obesity is characterized by the deposition of adipose tissue in various parts of the body; it is now evident that adipose tissue also acts as an endocrine organ capable of secreting many cytokines that are though to be involved in the pathophysiology of obesity, insulin resistance, and metabolic syndrome. Adipokines, or adipose tissue-derived proteins, play a pivotal role in this scenario. Increased secretion of proinflammatory adipokines leads to a chronic inflammatory state that is accompanied by insulin resistance and glucose intolerance. Lifestyle change in terms of increased physical activity and exercise is the best nonpharmacological treatment for obesity since these can reduce insulin resistance, counteract the inflammatory state, and improve the lipid profile. There is growing evidence that exercise exerts its beneficial effects partly through alterations in the adipokine profile; that is, exercise increases secretion of anti-inflammatory adipokines and reduces proinflammatory cytokines. In this paper we briefly describe the pathophysiologic role of four important adipokines (adiponectin, leptin, TNF-α, and IL-6) in the metabolic syndrome and review some of the clinical trials that monitored these adipokines as a clinical outcome before and after exercise.

The Role of Adipose Tissue Hypercortisolemia in the Development of the Metabolic Syndrome in Severely Obese Patients.

2010 ◽  
pp. P2-467-P2-467
Author(s):  
M Michalaki ◽  
V Kyriazopoulou ◽  
A Antonacopoulou ◽  
M Nikolaou ◽  
A Tsoukas ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
Obese Patients ◽  
The Metabolic Syndrome ◽  
Severely Obese

scholarly journals Mediterranean diet, endothelial function and vascular inflammatory markers

2006 ◽  
Vol 9 (8A) ◽  
pp. 1073-1076 ◽  
Author(s):  
Katherine Esposito ◽  
Miryam Ciotola ◽  
Dario Giugliano
Keyword(s):  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
Endothelial Dysfunction ◽  
Low Grade ◽  
The Metabolic Syndrome ◽  
Inflammatory State ◽  
Triggering Factor ◽  
Inflammatory Milieu ◽  
Visceral Adipose

AbstractObjectivesTo discuss present knowledge about the relation between adipose tissue, inflammation and the Mediterranean-style diet.DesignReview of the literature and personal perspectives.Setting and resultsRecent studies indicate that adipose tissue is an endocrine organ producing numerous proteins, collectively referred to as adipokines, with broad biological activity, which play an important autocrine role in obesity-associated complications. Adipose tissue in general and visceral fat in particular are thought to be key regulators of inflammation which is heavily involved in the onset and development of atherothrombotic disease. Moreover, chronic inflammation may also represent a triggering factor in the origin of the metabolic syndrome and type 2 diabetes mellitus. An increased release of proinflammatory adipokines from the visceral adipose tissue, associated with a reduced secretion of anti-inflammatory adipokines and cytokines, could determine a low-grade chronic inflammatory state which might play a role in the future development of the metabolic syndrome, diabetes and atherosclerosis through both insulin resistance and endothelial dysfunction. Interventions aimed at decreasing weight loss and improving adherence to a Mediterranean-style diet in people with obesity or metabolic syndrome decrease the inflammatory milieu and ameliorate both insulin resistance and endothelial dysfunction.ConclusionsAppropriate dietary patterns, as those associated with the eating model of Mediterranean-type diets, represent therapeutic strategies to reduce inflammation and the associated metabolic and cardiovascular risk.

scholarly journals Inflammation as a Link between Obesity and Metabolic Syndrome

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Faloia Emanuela ◽  
Michetti Grazia ◽  
De Robertis Marco ◽  
Luconi Maria Paola ◽  
Furlani Giorgio ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Visceral Obesity ◽  
Low Grade ◽  
Subsequent Increase ◽  
The Metabolic Syndrome ◽  
Increased Risk ◽  
Inflammatory State

The metabolic syndrome is a complex of clinical features leading to an increased risk for cardiovascular disease and type 2 diabetes mellitus in both sexes. Visceral obesity and insulin resistance are considered the main features determining the negative cardiovascular profile in metabolic syndrome. The aim of this paper is to highlight the central role of obesity in the development of a chronic low-grade inflammatory state that leads to insulin resistance, endothelial and microvascular dysfunctions. It is thought that the starting signal of this inflammation is overfeeding and the pathway origins in all the metabolic cells; the subsequent increase in cytokine production recruits immune cells in the extracellular environment inducing an overall systemic inflammation. This paper focuses on the molecular and cellular inflammatory mechanisms studied until now.

scholarly journals The Role of Plasminogen Activator Inhibitor-1 in the Metabolic Syndrome and Its Regulation

2014 ◽  
Vol 3 (6) ◽  
pp. 36 ◽  
Author(s):  
Martha Phelan ◽  
David M. Kerins
Keyword(s):  
Risk Factors ◽  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
Plasminogen Activator ◽  
Plasminogen Activator Inhibitor ◽  
Plasminogen Activator Inhibitor 1 ◽  
The Metabolic Syndrome ◽  
Activator Inhibitor ◽  
Pai 1

<p>Obesity is a major risk factor for cardiovascular disease (CVD). Lipid abnormalities, hypertension, impaired glucose tolerance or diabetes, are cardiovascular risk factors that are frequently present in patients with obesity. Haemostatic and fibrinolytic disturbances are also considered to be important risk factors for CVD hence, a potential link between CVD, obesity and the metabolic syndrome arises. Regulation of the fibrinolytic system can occur at the level of plasminogen activators and plasminogen activator inhibitor-1 (PAI-1). PAI-1, a glycoprotein, is one of the most important inhibitors of fibrinolysis. Regulation of this serine protease inhibitor may have a beneficial effect on other conditions associated with the metabolic syndrome. Human adipose tissue is a source of PAI-1. PAI-1 production may in turn be controlled by a number of hormones and cytokines which are secreted by adipose tissue in addition to dietary factors. In this review we summarise the current knowledge regarding the role of altered fibrinolytic function in obesity, CVD and hence the metabolic syndrome. Regulatory factors including different dietary components, weight loss and dietary intervention will also be discussed.</p>

Metabolic Syndrome, a Cardiovascular Disease Risk Factor: Role of Adipocytokines and Impact of Diet and Physical Activity

2004 ◽  
Vol 29 (6) ◽  
pp. 808-829 ◽  
Author(s):  
Lindsay E. Robinson ◽  
Terry E. Graham
Keyword(s):  
Physical Activity ◽  
Insulin Resistance ◽  
Cardiovascular Disease ◽  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
The Metabolic Syndrome ◽  
Key Words Insulin ◽  
Diet And Physical Activity ◽  
The Impact

The metabolic syndrome comprises an array of cardiovascular disease (CVD) risk factors such as abdominal obesity, dyslipidemia, hypertension, and glucose intolerance. Insulin resistance and/or increased abdominal (visceral) obesity have been suggested as potential etiological factors. More recently, increasing evidence has associated insulin resistance and subclinical inflammation involving cytokines derived from adipose tissue, or adipocytokines. Despite the fact that precise mechanisms have yet to be established, there is a significant role for both diet and physical activity to improve the many factors associated with the metabolic syndrome, including modulation of various adipocytokines. Although both diet and physical activity have been studied for their ability to modify cytokines in more traditional inflammatory conditions, such as rheumatoid arthritis, they have been less studied in relation to inflammation as an underlying cause of the metabolic syndrome and/or CVD. A more thorough understanding of the clustering of metabolic abnormalities and their underlying etiology will help to define diet and physical activity guidelines for preventing and treating the metabolic syndrome, an important aspect of CVD prevention. This paper will address potential underlying causes of the metabolic syndrome, with a focus on the putative mechanistic role of adipocytokines, and will discuss the impact of diet and physical activity on the metabolic syndrome. Key words: insulin resistance syndrome, obesity, adipose tissue, skeletal muscle, cytokines, TNF-α, IL-6, PAI-1, inflammation, nutrition, exercise

Metabolic syndrome, inflammation and atherothrombosis

2013 ◽  
Vol 33 (04) ◽  
pp. 283-294 ◽  
Author(s):  
T. W. Weiss ◽  
M. Rohla
Keyword(s):  
Physical Activity ◽  
Cardiovascular Disease ◽  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
Atherosclerotic Plaques ◽  
Traditional Concept ◽  
The Past ◽  
The Metabolic Syndrome ◽  
Inflammatory Pattern

SummaryExtensive research of the past decades altered our traditional concept about the genesis of atherosclerosis fundamentally. Today, the crucial role of inflammation in the formation and progression of atherosclerotic plaques is indisputable. Patients at high risk for developing cardiovascular disease, owing to poor diet, obesity and low physical activity have been shown to exhibit a particular inflammatory pattern.Therefore, the present review highlights the crosslink between the metabolic syndrome (MetS), adipose tissue, adipokines and selected inflammatory cytokines in the context of atherothrombosis and cardiovascular disease.

Mammary adipose tissue and cancer cell growth: The role of adipose tissue in the tumor microenvironment

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e22009-e22009
Author(s):  
P. A. Carroll ◽  
L. Healy ◽  
J. Lysaght ◽  
M. Griffin ◽  
B. Dunne ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metabolic Syndrome ◽  
Cell Proliferation ◽  
Adipose Tissue ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Breast Cancer Cell Lines ◽  
The Metabolic Syndrome ◽  
Proliferation Response

e22009 Background: Worldwide, the prevalence of obesity is rapidly increasing, correlating with a direct increase in cancer rates1. Adipose tissue is considered an important endocrine organ producing several important hormones and cytokines including leptin and adiponectin. Mechanisms for the role of obesity in cancer states includes the excess or unregulated secretion of adipocytokines from adipose tissue, and potentially the metabolic syndrome (a cluster of co-morbidities linked to metabolic dysregulation). Mammary adipose tissue is proposed to play a vital role in the microenvironment of normal and tumour states within the breast2. Breast adipose tissue is a good candidate to investigate effects of obesity and metabolic disturbances on cancer states. Methods: Peritumoural (PT) adipose tissue adjacent to the tumour and distal adipose tissue (D) within the breast was sampled in 10 patients. The tissue was processed and cultured for 72hrs in serum free minimal cytokine media. A-MB-231 and MCF-7 breast cancer cell lines were then cultured with this adipocyte conditioned media (ACM) and cell proliferation response was then measured using BrDU assays. The adipocytokine profile at the mRNA and protein level was measured in ACM and adipose tissue for comparative differences using RT-PCR, ELISA and Cytokine Profiler technology. Results: ACM from both sites promoted tumour cell survival. There was however, a differential cell proliferation response noted between the peritumoural (PT) ACM and that from the distant (D) ACM. Pro-inflammatory mediators (VEGF, TNF-α, EGF) were also demonstrated a trend to be differentially expressed between the 2 sites. Conclusions: Proliferation of breast cancer cell lines occurs in response to ACM, with differential effects seen between peritumoural ACM and distant ACM. This may be mediated through increased pro-inflammatory or pro- mitogenic adipocytokine production in adipose tissue surrounding tumour. Further analysis will determine what role obesity and the metabolic syndrome plays in the results noted. No significant financial relationships to disclose.

scholarly journals Adipose tissue at the crossroads in the development of the metabolic syndrome, inflammation and atherosclerosis

2009 ◽  
Vol 53 (2) ◽  
pp. 145-150 ◽  
Author(s):  
Bernardo Léo Wajchenberg ◽  
Marcia Nery ◽  
Maria Rosaria Cunha ◽  
Maria Elizabeth Rossi da Silva
Keyword(s):  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Adipose Tissue ◽  
Endothelial Dysfunction ◽  
Low Grade ◽  
Inflammatory Signaling ◽  
The Metabolic Syndrome ◽  
Inflammatory State ◽  
Low Grade Inflammation ◽  
Adipose Tissue Depot

The authors analyze insulin resistance, the metabolic syndrome and endothelial dysfunction as consequence of a common antecedent, a low grade inflammation, indicating that in obesity there is a chronically activated inflammatory state of the adipose tissue. Furthermore, the inflammatory signaling is discussed according to the adipose tissue depot, visceral or subcutaneous.

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