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Mechanisms of Homoarginine: Looking Beyond Clinical Outcomes.
Acta Physiol (Oxf)
February 2025
Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
Purpose: Homoarginine (hArg) is an arginine metabolite that has been known for years, but its physiological role in the body remains poorly understood. For instance, it is well known that high hArg concentrations in the blood are protective against several disease states, yet the mechanisms behind these health benefits are unclear. This review compiles what is known about hArg, namely its synthetic pathways, its role in different diseases and conditions, and its proposed mechanisms of action in humans and experimental animals.
View Article and Find Full Text PDFA trigger-inducible split-Csy4 architecture for programmable RNA modulation.
Nucleic Acids Res
January 2025
Research Center for Life Sciences Computing, Zhejiang Lab, Kechuang Avenue, Yuhang District, Hangzhou, Zhejiang, 311121, China.
The CRISPR-derived endoribonuclease Csy4 is a popular tool for controlling transgene expression in various therapeutically relevant settings, but adverse effects potentially arising from non-specific RNA cleavage remains largely unexplored. Here, we report a split-Csy4 architecture that was carefully optimized for in vivo usage. First, we separated Csy4 into two independent protein moieties whose full catalytic activity can be restored via various constitutive or conditional protein dimerization systems.
View Article and Find Full Text PDFAdrenomedullin 2/Intermedin Exerts Cardioprotective Effects by Regulating Cardiomyocyte Mitochondrial Function.
Hypertension
January 2025
Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Nagano, Japan. (Y. Zhao, T. Sakurai, A.K., M.T., Y.I.-S., H.K., Y.M., Y. Zhang, Q.G., P.L., K.H., M.H., J.L., T. Shindo).
Background: Adrenomedullin 2 (AM2) plays critical roles in regulating blood pressure and fluid balance. However, the specific involvement of AM2 in cardiac hypertrophy has not been comprehensively elucidated, warranting further investigation into its molecular mechanisms and therapeutic implications.
Methods: Cardiac hypertrophy was induced in adult mice lacking AM2 (AM2-/-) using transverse aortic constriction surgery.
Revisiting the unobtrusive role of exogenous stem cells beyond neural circuits replacement in spinal cord injury repair.
Theranostics
January 2025
Department of biochemistry and molecular biology, College of Life Sciences, Central South University, Changsha, 410078, Hunan, China.
Stem cell transplantation is a promising strategy to establish neural relays in situ for spinal cord injury (SCI) repair. Recent research has reported short-term survival of exogenous cells, irrespective of immunosuppressive drugs (ISD), results in similar function recovery, though the mechanisms remain unclear. This study aims to validate this short-term repair effect and the potential mechanisms in large animals.
View Article and Find Full Text PDFCircRNAs: A promising target for intervention regarding glycolysis in gastric cancer.
Heliyon
July 2024
The First Hospital of Lanzhou University, Lanzhou, China, 730000.
Gastric cancer is characterized by a high incidence and mortality rate, with therapeutic efficacy currently constrained by substantial limitations. Aerobic glycolysis in cancer constitutes a pivotal aspect of the reprogramming of energy metabolism in tumor cells and profoundly influences the malignant progression of cancer. CircRNAs, serving as stable endogenous RNA, have been shown to regulate downstream targets by sponging miRNAs, which in turn are involved in the regulation of multiple malignant behaviors in a variety of cancers through the CircRNA-miRNA axis, suggesting that CircRNAs could be used as potential therapeutic targets for cancer.
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