Adipose Tissue Dysfunction: A Multistep Process

被引:8
作者
Sun, Kai [1 ]
Scherer, Philipp E. [1 ]
机构
[1] Univ Texas SW Med Ctr Dallas, Dept Internal Med, Touchstone Diabet Ctr, Dallas, TX 75390 USA
来源
NOVEL INSIGHTS INTO ADIPOSE CELL FUNCTIONS | 2010年
关键词
ENDOPLASMIC-RETICULUM STRESS; ADIPOCYTE; OBESITY; INFLAMMATION; EXPRESSION; INDUCTION; HYPOXIA;
D O I
10.1007/978-3-642-13517-0_6
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
During the progression from the lean to the obese state, adipose tissue undergoes hyperplasia as well as hypertrophy in an attempt to cope with the increased demand for triglyceride storage. This process requires a high degree of plasticity at both the cellular and tissue levels. Even though adipose tissue as a whole seems to be a relatively static tissue containing many adipocytes that turn over relatively slowly, these cells are embedded in an environment that can rapidly adapt to the expansion needs and also accommodate newly differentiating adipocytes. The extracellular matrix of adipose tissue faces unique challenges with respect to adjusting to the need for remodeling and expansion. In parallel, the vasculature has to adapt to altered requirements for nutrient and oxygen exchange. A decrease in the plasticity of these processes leads to metabolic dysfunction. To maintain a healthy, non-inflamed phenotype, complex regulatory mechanisms are in place to ensure adipocytes and stromal vascular cells efficiently crosstalk to allow adipose tissue to expand upon increased demand for storage of triglycerides.
引用
收藏
页码:67 / 75
页数:9
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