Publications by authors named "Akiko Abiru"

Article Synopsis
  • Cancer-associated fibroblasts (CAFs) are crucial for tumor growth and immune suppression, with their behavior varying significantly between 2D and 3D culture conditions.
  • In 2D cultures, CAFs adopt a myofibroblast subtype, while in 3D spheroid models, they become more inflammatory and support cancer cell growth, leading to protective effects against natural killer (NK) cell attacks.
  • This study highlights the importance of 3D models for understanding CAF functionality and suggests that these models can improve drug discovery efforts by mimicking the more clinically relevant tumor microenvironment.
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Since impaired mitochondrial ATP production in cardiomyocytes is thought to lead to heart failure, a drug that protects mitochondria and improves ATP production under disease conditions would be an attractive treatment option. In this study, we identified small-molecule drugs, including the anti-parasitic agent, ivermectin, that maintain mitochondrial ATP levels under hypoxia in cardiomyocytes. Mechanistically, transcriptomic analysis and gene silencing experiments revealed that ivermectin increased mitochondrial ATP production by inducing Cox6a2, a subunit of the mitochondrial respiratory chain.

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Fasiglifam (TAK-875) is a free fatty acid receptor 1 (FFAR1)/G-protein-coupled receptor 40 (GPR40) agonist that improves glycemic control in type 2 diabetes with minimum risk of hypoglycemia. Fasiglifam potentiates glucose-stimulated insulin secretion (GSIS) from pancreatic β-cells glucose dependently, although the precise mechanism underlying the glucose dependency still remains unknown. Here, we investigated key cross-talk between the GSIS pathway and FFAR1 signaling, and Ca(2+) dynamics using mouse insulinoma MIN6 cells.

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