Single nucleotide polymorphisms (SNPs) clustered in the first intron of the fat mass and obesity-associated (FTO) gene has been associated with obesity. FTO expression is ubiquitous, with particularly high levels in the hypothalamic area of the brain. To investigate the region-specific role of FTO, AAV technology was applied to knockdown FTO in the ventromedial hypothalamus (VMH). No effect of FTO knockdown was observed on bodyweight or parameters of energy balance. Animals were exposed twice to an overnight fast, followed by a high-fat high-sucrose (HFHS) diet for 1 week. FTO knockdown did not result in a different response to the diets. A region-specific role for FTO in the VMH in the regulation of energy balance could not be found.
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http://dx.doi.org/10.14814/phy2.12152 | DOI Listing |
Cancer Lett
December 2024
Digestive Diseases Center, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China. Electronic address:
Cancer associated fibroblasts (CAFs) are the predominant stromal cells in the tumor microenvironment of gastric cancer (GC), interacting with both immune and tumor cells to drive cancer progression. However, the precise link between these interactions and their potential as therapeutic targets remains poorly understood. In this study, we identified for the first time that nicotinamide N-methyltransferase (NNMT) derived from CAFs promoted M2 macrophage polarization, which, in turn, facilitated the proliferation and migration of GC cells.
View Article and Find Full Text PDFCancer Med
December 2024
Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Background: The incidence rate and mortality of cervical cancer rank the fourth in the global female cancer. N6-methyladenosine (m6A) always plays an important role in tumor progression, and fat mass and obesity-associated gene (FTO) works as the m6A demethylase.
Aims: Our study aimed to narrate the biological function and potential mechanisms for FTO in cervical cancer malignancy.
Proc Natl Acad Sci U S A
December 2024
Department of Medicine, Section of Dermatology, University of Chicago, Chicago, IL 60637.
Here, we show that vitamin E succinate (VES) acts as a degrader for the mA RNA demethylase fat mass and obesity-associated protein (FTO), thus suppressing tumor growth and resistance to immunotherapy. FTO is ubiquitinated by its E3 ligase DTX2, followed by UFD1 recruitment and subsequent degradation in the proteasome. VES binds to FTO and DTX2, leading to enhanced FTO-DTX2 interaction, FTO ubiquitination, and degradation in FTO-dependent tumor cells.
View Article and Find Full Text PDFHeliyon
December 2024
Traditional Chinese Medicine Department, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518000, China.
Background: Parkinson's disease (PD) characterized by inflammation and protein erroneous deposition, whose pathological mechanisms have not been elucidated. NcRNA plays important role in PD, especially when circRNA sponges miRNA, which leads to the breakdown of downstream regulation. The aim of this study is to investigate the dynamic changes between upregulated circRNA and downregulated miRNA during the pathogenesis of PD and their impact on downstream miRNA targets.
View Article and Find Full Text PDFMol Neurobiol
November 2024
Key Laboratory of Molecular Biology, School of Basic Medical Sciences, Guizhou Medical University, Guiyang, Guizhou, China.
Ischemic stroke (IS) is one of the most common causes of death in the world. The lack of effective pharmacological treatments for IS was primarily due to a lack of understanding of its pathogenesis. Gα-Interacting vesicle-associated protein (GIV/Girdin) is a multi-modular signal transducer and guanine nucleotide exchange factor that controls important signaling downstream of multiple receptors.
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