Project 2: Role of LPCAT3 in Adipose Remodeling and Metabolic Diseases

项目2：LPCAT 3在脂肪重塑中的作用 Mi-Jeong Lee，助理教授，部门人类营养、食品和动物科学 肥胖症中功能失调的脂肪组织质量较高，会增加代谢疾病的风险，这是一个主要的公众问题。 健康问题。膳食因素是脂肪重塑和全身能量代谢的重要调节因子。 猪油为基础的高脂肪饮食诱导肥胖动物模型中脂肪组织的过度重塑， 代谢性疾病根据所使用的脂肪类型，它们对代谢健康的影响各不相同，omega-3多聚脂肪酸 鱼油中富含的不饱和脂肪酸对健康有益，而饱和脂肪酸会损害胰岛素信号传导 并诱导促炎反应。我们工作的目标是阐明分子细节， omega-3与饱和脂肪对脂肪组织功能发挥保护作用的机制， 全身代谢我们将测试一个新的假设，即欧米茄-3多不饱和脂肪酸导致健康 通过掺入改变膜生物学的膜磷脂来重塑脂肪组织 和生物活性脂质的产生。我们将评估磷脂重塑酶的重要性 溶血磷脂酰胆碱酰基转移酶（LPCAT）3，其优先将多不饱和脂肪酸添加到 膜磷脂，介导ω-3多不饱和脂肪酸的有益作用。的 预期所提出的研究将确定改善脂肪组织功能的新策略， 代谢健康

Project 2: Role of LPCAT3 in Adipose Remodeling Mi-Jeong Lee, Assistant Professor, Dept. of Human Nutrition, Food and Animal Sciences, CTAHR Higher mass of dysfunctional adipose tissues in obesity increases risk of metabolic diseases, a major public health concern. Dietary factors are important regulators of adipose remodeling and systemic energy metabolism. Lard-based high fat diets induce excessive remodeling of adipose tissues in animal models of obesity and metabolic diseases. Depending on types of fat used, their effects on metabolic health vary and omega-3 poly- unsaturated fatty acids enriched in fish oil have health benefits while saturated fatty acids impair insulin signaling and induce proinflammatory responses. The objective of our work is to elucidate the molecular details and mechanisms through which omega-3 vs. saturated fat exerts protective effects on adipose tissue function and systemic metabolism. We will test a novel hypothesis that omega-3 poly-unsaturated fatty acids lead to healthier remodeling of adipose tissues through incorporation into membrane phospholipids altering membrane biology and production of bioactive lipids. We will assess the importance of a phospholipid remodeling enzyme lysophosphatidylcholine acyltransferase (LPCAT) 3, which preferentially add poly-unsaturated fatty acids into membrane phospholipids, in mediating the beneficial effects of omega-3 poly-unsaturated fatty acids. The proposed studies are expected to identify new strategies to improve adipose tissue function and hence, systemic metabolic health.