Departments of Medicine and Developmental and Molecular Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Nutrients. 2018 Sep 29;10(10):1383. doi: 10.3390/nu10101383.
lipogenesis (DNL) is a complex and highly regulated process in which carbohydrates from circulation are converted into fatty acids that are then used for synthesizing either triglycerides or other lipid molecules. Dysregulation of DNL contributes to human diseases such as obesity, type 2 diabetes, and cardiovascular diseases. Thus, the lipogenic pathway may provide a new therapeutic opportunity for combating various pathological conditions that are associated with dysregulated lipid metabolism. Hepatic DNL has been well documented, but lipogenesis in adipocytes and its contribution to energy homeostasis and insulin sensitivity are less studied. Recent reports have gained significant insights into the signaling pathways that regulate lipogenic transcription factors and the role of DNL in adipose tissues. In this review, we will update the current knowledge of DNL in white and brown adipose tissues with the focus on transcriptional, post-translational, and central regulation of DNL. We will also summarize the recent findings of adipocyte DNL as a source of some signaling molecules that critically regulate energy metabolism.
脂肪生成(DNL)是一个复杂且高度调控的过程,在此过程中,循环中的碳水化合物被转化为脂肪酸,然后用于合成甘油三酯或其他脂质分子。DNL 的失调会导致人类疾病,如肥胖、2 型糖尿病和心血管疾病。因此,脂肪生成途径可能为治疗与脂质代谢失调相关的各种病理状况提供新的治疗机会。肝脂肪生成已有充分的文献记载,但脂肪细胞中的脂肪生成及其对能量平衡和胰岛素敏感性的贡献研究较少。最近的报告深入了解了调节脂肪生成转录因子的信号通路以及 DNL 在脂肪组织中的作用。在这篇综述中,我们将更新白色和棕色脂肪组织中 DNL 的最新知识,重点介绍 DNL 的转录、翻译后和中枢调控。我们还将总结脂肪细胞 DNL 作为一些关键调节能量代谢的信号分子来源的最新发现。