Publications by authors named "Maria Ahonen"

Golgi membrane protein 1 (GOLM1) is a Golgi-resident type 2 transmembrane protein known to be overexpressed in several cancers, including hepatocellular carcinoma (HCC), as well as in viral infections. However, the role of GOLM1 in lipid metabolism remains enigmatic. In this study, we employed siRNA-mediated GOLM1 depletion in Huh-7 HCC cells to study the role of GOLM1 in lipid metabolism.

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Background: Thyroid hormone responsive protein (THRSP) is a lipogenic nuclear protein that is highly expressed in murine adipose tissue, but its role in humans remains unknown.

Methods: We characterized the insulin regulation of THRSP in vivo in human adipose tissue biopsies and in vitro in Simpson-Golabi-Behmel syndrome (SGBS) adipocytes. To this end, we measured whole-body insulin sensitivity using the euglycemic insulin clamp technique in 36 subjects [age 40 ± 9 years, body mass index (BMI) 27.

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Article Synopsis
  • - MicroRNA-221-3p (miR-221-3p) impacts lipid metabolism and adipocyte differentiation, showing that overexpression inhibits fat storage and key adipogenic genes, while its inhibitor promotes fat accumulation.
  • - Global lipid analysis revealed that miR-221-3p overexpression disrupts fat synthesis and alters lipid profiles by increasing ceramides and sphingomyelins while decreasing diacylglycerols.
  • - Additionally, high levels of miR-221-3p in breast cancer patients' adipose tissue suggest it may enhance cancer cell growth and invasion, indicating a link between fat metabolism and cancer development.
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MicroRNA-107 (miR-107) plays a regulatory role in obesity and insulin resistance, but the mechanisms of its function in adipocytes have not been elucidated in detail. Here we show that overexpression of miR-107 in pre- and mature human Simpson-Golabi-Behmel syndrome (SGBS) adipocytes attenuates differentiation and lipid accumulation. Our results suggest that miR-107 controls adipocyte differentiation via CDK6 and Notch signaling.

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Context: Angiopoietin-like 8 (ANGPTL8) has been identified as a key regulator of lipid metabolism.

Design: We addressed the correlation between ANGPTL8 messenger RNA (mRNA) with hallmark insulin-regulated and lipogenic genes in human adipose tissue (AT). The regulation of ANGPTL8 expression in adipocytes was studied after inflammatory challenge, and the role of microRNA (miRNA)-221-3p therein was investigated.

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Introduction: Endodontic-related paresthesia is a potential complication despite the development of endodontic materials and techniques. We describe a case of periapical lesion-induced paresthesia that was successfully treated endodontically. The literature review of endodontic-related paresthesia is also presented.

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