Endogenous reactive oxygen species (ROS) control is important for the maintenance of self-renewal of embryonic stem (ES) cells. Although miRNAs have been found to be critically involved in the regulation of the self-renewal, whether miRNAs can regulate the signaling axis to control ROS in ES cells is unclear. Here we show that miR-29b specifically regulates the self-renewal of mouse ES cells in response to ROS generated by antioxidant-free culture. Sirt1 is the direct target of miR-29b and can also make mES cells sensitive to ROS and regulate the self-renewal of mES cells during the response of ROS. We further found that Sirt1 could attenuate the miR-29b function in regulating mES cells' self-renewal in response to ROS. Our results determined that miR-29b-Sirt1 axis regulates self-renewal of mES cells in response to ROS.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.cellsig.2014.03.010 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Current landscape and future prospects of interleukin-2 receptor (IL-2R) agonists in cancer immunotherapy.
Oncoimmunology
December 2025
Earle A. Chiles Research Institute, Providence Cancer Institute, Portland, OR, USA.
Immune checkpoint blockade (ICB) has significantly improved the survival for many patients with advanced malignancy. However, fewer than 50% of patients benefit from ICB, highlighting the need for more effective immunotherapy options. High-dose interleukin-2 (HD IL-2) immunotherapy, which is approved for patients with metastatic melanoma and renal cell carcinoma, stimulates CD8 T cells and NK cells and can generate durable responses in a subset of patients.
View Article and Find Full Text PDFGastric Cancer Models Developed via GelMA 3D Bioprinting Accurately Mimic Cancer Hallmarks, Tumor Microenvironment Features, and Drug Responses.
Small
January 2025
Department of Surgical Oncology and General Surgery Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.
Current in vitro models for gastric cancer research, such as 2D cell cultures and organoid systems, often fail to replicate the complex extracellular matrix (ECM) found in vivo. For the first time, this study utilizes a gelatin methacryloyl (GelMA) hydrogel, a biomimetic ECM-like material, in 3D bioprinting to construct a physiologically relevant gastric cancer model. GelMA's tunable mechanical properties allow for the precise manipulation of cellular behavior within physiological ranges.
View Article and Find Full Text PDFA Mitochondria-Related Signature in Diffuse Large B-Cell Lymphoma: Prognosis, Immune and Therapeutic Features.
Cancer Med
January 2025
Department of Pharmacology, College of Pharmacy, Jinan University, Guangzhou, China.
Background: Distinctive heterogeneity characterizes diffuse large B-cell lymphoma (DLBCL), one of the most frequent types of non-Hodgkin's lymphoma. Mitochondria have been demonstrated to be closely involved in tumorigenesis and progression, particularly in DLBCL.
Objective: The purposes of this study were to identify the prognostic mitochondria-related genes (MRGs) in DLBCL, and to develop a risk model based on MRGs and machine learning algorithms.
Cellular senescence is characterized by a stable cell cycle arrest and a hypersecretory, proinflammatory phenotype in response to various stress stimuli. Traditionally, this state has been viewed as a tumor-suppressing mechanism that prevents the proliferation of damaged cells while activating the immune response for their clearance. However, senescence is increasingly recognized as a contributing factor to tumor progression.
View Article and Find Full Text PDFExtracellular vesicles in liquid biopsies: there is hope for oral squamous cell carcinoma.
Extracell Vesicles Circ Nucl Acids
December 2024
Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong 00000, China.
Current approaches to oral cancer diagnosis primarily involve physical examination, tissue biopsy, and advanced computer-aided imaging techniques. However, despite these advances, patient survival rates have not significantly improved. Hence, there is a critical need to develop minimally invasive tools with high sensitivity and specificity to improve patient survival and quality of life.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!