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Jiang, Xiaoyu,Lu, Xiaoqing,McNamara, George,Liu, Xiaofei,Cubedo, Elena,Sarosiek, Kristopher A.,Sá,nchez-Garcí,a, Isidro,Helfman, David M.,Lossos, Izidore S. American Society of Hematology 2010 Blood Vol.116 No.24
<B>Abstract</B><P>HGAL is a germinal center (GC)-specific gene that negatively regulates lymphocyte motility and whose expression predicts improved survival of patients with diffuse large B-cell lymphoma (DLBCL) and classical Hodgkin lymphoma (cHL). We demonstrate that HGAL serves as a regulator of the RhoA signaling pathway. HGAL enhances activation of RhoA and its down-stream effectors by a novel mechanism - direct binding to the catalytic DH-domain of the RhoA-specific guanine nucleotide exchange factors (RhoGEFs) PDZ-RhoGEF and LARG that stimulate the GDP-GTP exchange rate of RhoA. We delineate the structural domain of HGAL that mediates its interaction with the PDZ-RhoGEF protein. These observations reveal a novel molecular mechanism underlying the inhibitory effects of GC-specific HGAL protein on the motility of GC-derived lymphoma cells. This mechanism may underlie the limited dissemination and better outcome of patients with HGAL-expressing DLBCL and cHL.</P>
Jakub Mesinovic,Jackson J. Fyfe,Michael J. Wheeler,Michael J. Wheeler,Gloria K.W. Leung,Elena S. George,Melkamu T. Hunegnaw,Costas Glavas,Paul Jansons,Robin M. Daly,David Scott 대한당뇨병학회 2023 Diabetes and Metabolism Journal Vol.47 No.6
Type 2 diabetes mellitus (T2DM) and sarcopenia (low skeletal muscle mass and function) share a bidirectional relationship. The prevalence of these diseases increases with age and they share common risk factors. Skeletal muscle fat infiltration, commonly referred to as myosteatosis, may be a major contributor to both T2DM and sarcopenia in older adults via independent effects on insulin resistance and muscle health. Many strategies to manage T2DM result in energy restriction and subsequent weight loss, and this can lead to significant declines in muscle mass in the absence of resistance exercise, which is also a first-line treatment for sarcopenia. In this review, we highlight recent evidence on established treatments and emerging therapies targeting weight loss and muscle mass and function improvements in older adults with, or at risk of, T2DM and/or sarcopenia. This includes dietary, physical activity and exercise interventions, new generation incretin-based agonists and myostatin-based antagonists, and endoscopic bariatric therapies. We also highlight how digital health technologies and health literacy interventions can increase uptake of, and adherence to, established and emerging treatments and therapies in older adults with T2DM and/or sarcopenia.