Adipose Tissue Dysfunction and Diabetic Cardiovascular Disease
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1 Adipose Tissue Dysfunction and Diabetic Cardiovascular Disease Xin-Liang Ma, MD, PhD Thomas Jefferson University Philadelphia, PA USA
2 CVD As The #1 Causes of Death In USA Male Female Heart Disease and Stroke Statistics Update: A Report From the American Heart Association, Circulation, 121, e46-215, 2010
3 Obesity/Diabetes = Common Soil for Cardiovascular Disease CHD Hypertension Stroke Heart failure Arrhythmia Disorder of Glucose Metabolism Disorder of Lipid Metabolism OBESITY
4 What Matters More? Quantity Vs. Quality
5 OBESE LEAN Adipose tissue Dysregulation ANTI-INFLAMMATORY PROFILE: IL-4,IL-10,IL-13 Normal metabolic function Normal vascularization Immune cells: M2 macrophages, eosinophils and Tregs PRO-INFLAMMATORY PROFILE: IFNᵧ, TNF-α,MCP-1,IL-6,IL-1β, Metabolic dysfunction, Severe hypoxia, Adipocyte necrosis Immune cells: M1 macrophages (crown-like structures), CD4 + T Iymphocytes, CD4 + T Iymphocytes, B Iymphocytes and mast cells Adipocyte M2 Macrophage Eosinophil Treg Capillaries M1 Macrophage B Lymphocyte Neutrophil Mast cells T Lymphocyte
6 Adipose Tissue Dysfunction Adipogenesis intact (minimal hypertrophy) Sufficient storage capacity Regulated lipolysis No inflammation Insulin sensitive Positive Energy balance Subcutaneous Adipose tissue expansion Decreased adipogenesis (adipocyte hypertrophy) Storage capacity compromised Increased lipolysis Low-grade inflammation Insulin resistance Pro-inflammatory adipokine profile Increased visceral adipose tissue Free fatty acids Adverse Impact Upon Liver, Skeletal Muscle, Endothelial Cells, and Cardiomyocytes
7 Adipokines, Adipocytokines Free Fatty Acids Lysophospholipid Lactate Glutamine Cytokines (TNF, Interleukins,PAI-1) Growth Factors (TGFb,IGF-1, IGFBP FGF, EGF, IGF-1 IGFBP, FGF, EGF) Hormones (Angiotensin, Estrogen, Prostaglandins) Leptin 1994 Adiponectin 1995
8 Largest Endocrine Organ Leptin Adiponectin Adipose Derived Hormones
9 Is Adipocyte Endocrine Function Altered in Obesity/Diabetes?
10 Association of Serum Leptin Concentration with BMS and Waist Circumference in Non-Diabetic and Diabetic Men and Women BMJ 1996;313:
11 Correlations between Serum Leptin and BMS and WBGU European Journal of Endocrinology (1998)
12 Paradoxical Decrease of Adiponectin in Obesity r=-0.66 p< r=-0.48 p< Non-obese subjects: men; 7.7 ± 3.1 µg/ml, women; 10.6 ± 7.3, p < Obese subjects: men; 2.8 ± 2.1 µg/ml, women; 4.8 ± 4.0, p < Arita, et al., BBRC 257;79,1999
13 Reduced Plasma Concentrations of Adiponectin in Type 2 Diabetic Patients Arterioscler Thromb Vasc Biol 2000;20;
14 Healthy Adiponectin Leptin
15 Adiponectin Obesity/Diabetes Leptin
16 Does Adipocyte Endocrine Unbalance Play Important Roles in Diabetic Heart Injury?
17 Leptin From a Fat Fighter to a Risk Factor Ob/ob Db/db Reduces Appetite
18 Reduced Adiponectin Level is Associated with Severity of Coronary Artery Disease Int Heart J 2007; 48:
19 Am J Cardiol 2007;100:
20 Serum Adiponectin is A Predictor of Coronary Heart Disease: A Population-Based 10-Year Follow-up Study in Elderly Men The Journal of Clinical Endocrinology & Metabolism 92(2):
21 Future Adverse Cardiac Events Can Be Predicted by Persistently Low Plasma Adiponectin Concentrations in Men and Marked Reductions of Adiponectin in Women after Acute Myocardial Infarction Atherosclerosis 194 (2007)
22 Usefulness of Adiponectin to Predict Myocardial Salvage Following Successful Reperfusion in Patients with Acute Myocardial Infarction Am J Cardiol 2008;101:
23 Three Questions for A Top-Down Translational Research Causative? Mechanisms? Target?
24 Obesity/Diabetes Adiponectin Vascular Injury Cardiomyocyte Injury Morbidity of IHD Mortality of IHD Tao et al, Circulation, 115: , 2007
25 Adiponectin Biological Functions AMPK Agonists Anti-Oxidative/Anti-Nitrative Anti-Oxidative/Anti-Nitrative Stress AMPK AMPK Anti-Inflammatory Metabolic/Insulin Sensitization Wang et al, Circulation, 119: ,2009
26 APPL1 ncdase AMPK Anti-Inflammatory Anti-Oxidative/Nitrative Insulin Sensitization Metabolic Regulation Wang et al, Circ Res, 114: ,2014
27 Normal Heart Diabetic Heart PKA AMPK Akt X PKA AMPK Akt Cardioprotection Loss of Cardioprotection Wang et al, ATVB, 32: , 2012
28 Obesity/Diabetes: Adipose Endocrine Dysfunction Adiponectin Leptin
29 APN in HF Is Controversy
30 High Adiponectin Levels Are Associated with Increased Mortality and Heart Failure NORMAL LEVEL
31
32 GRK2-Mediated AdipoR1 Phosphorylation Contributes to the Development of Ischemic Herat Failure APN X AdipoR1 P GRK2 Anti-Inflammatory Anti-Oxidative/Anti-Nitrative Stress Cardiometabolic Stimulation BNP Wang et al, Circulation. 2015;131:
33 Systemic Adiponectin Dysfunction Novel Player in Post-MI Cardiac Remodeling
34 Post-Ischemic Remodeling Remodeling
35 B e c l i n - 1 / S A F o l d O v e r S h a m M I / R p 6 2 / S A F o l d O v e r S h a m M I / R L A M P 2 / S A % o f S h a m M I / R D o t s / F i e l d F o l d O v e r S h a m M I / R D o t s / F i e l d F o l d O v e r S h a m M I / R Merged L C 3 I I / S A F o l d O v e r S h a m M I / R RFP GFP A LC3I LC3II Sham MI/R NC DB MI/R NC DB 14kD 16kD B Sham MI/R N DB RFP-GFP-LC3 C N C MI/R DB αsa 43kD * N C D B N C D B Sham MI/R MI/R 0 N D H F D C ** * ** 4 2 ** 0 N C D B N C D B 0 N C D B 0 N C D B N C D B 0 N C D B Sham MI/R MI/R Sham MI/R MI/R Autophagosome Autolysosome D 60kD 43kD 1. 0 Sham MI/R NC DB MI/R NC DB Beclin-1 αsa 2. 0 E 62kD 43kD 1. 0 Sham MI/R NC DB MI/R NC DB p62 αsa F 110kD 43kD 0. 8 LAMP2 αsa * * ** * * ** ** N C D B N C D B N C D B N C D B N C D B N C D B N C D B N C D B Sham MI/R MI/R Sham MI/R MI/R Sham MI/R MI/R 0 N D H F D
36 D o t s / F i e l d F o l d O v e r S h a m M I / R D o t s / F i e l d F o l d O v e r S h a m M I / R Merged RFP GFP p 6 2 / S A F o l d O v e r S h a m M I / R L A M P 2 / S A % o f S h a m M I / R L C 3 I I / S A F o l d O v e r S h a m M I / R B e c l i n - 1 / S A F o l d O v e r S h a m M I / R A WT APNKO LC3I LC3II Beclin-1 Sham MI/R MI/R Sham MI/R MI/R 14kD 16kD 60kD * * * αsa 43kD 0. 0 W T A P N K O W T A P N K O 0. 0 W T A P N K O 0. 0 W T A P N K O W T A P N K O 0. 0 W T A P N K O Sham MI/R MI/R Sham MI/R MI/R B P62 LAMP2 WT APNKO Sham MI/R MI/R Sham MI/R MI/R 62kD 110kD * ** * ** ** αsa 43kD 0. 0 W T A P N K O W T A P N K O Sham MI/R MI/R 0 W T A P N K O 0. 0 W T A P N K O W T A P N K O Sham MI/R MI/R 0 W T A P N K O C WT APNKO Sham MI/R MI/R Sham MI/R MI/R ** ** 4 ** W T A P N K O W T A P N K O 0 W T A P K N O 0 W T A P N K O W T A P N K O 0 W T A P N K O Sham MI/R MI/R Autophagosome Sham MI/R MI/R Autolysosome
37 AKNOWLEDGEMENTS Current Members Yajing Wang, MD, PhD Wayne Bond Lau, MD Yaping Guo, MD Yue Chen, MD Han Wang, MD Wenjun Yan, MD,PhD Lu Gan, PhD Bernard Lopez, MD, MS Theodore A. Christopher, MD Ma s Laboratory Past Key Members Feng Gao, MD,PhD Huirong Liu, MD,PhD Ling Tao, MD,PhD Jun Pu, MD, PhD Wei Yi, MD, PhD Yang Sun, MD, PhD Key Collaborators Erhe Gao, MD, PhD Walter Koch, PhD
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