Aging Promotes Reactivation of the Barr Body at Distal Chromosome Regions

1. Academic Background: The Mysterious Link between X Chromosome Inactivation and Aging In mammals, females possess two X chromosomes while males have only one. To maintain gene dosage balance between the sexes, females undergo a process called X chromosome inactivation (XCI) early in development, in which one of the two X chromosomes is randomly s...

Monocytes Can Efficiently Replace All Brain Macrophages and Fetal Liver Monocytes Can Generate Bona Fide Sall1+ Microglia

Academic Background The homeostasis of the central nervous system (CNS) relies on two key types of macrophages: microglia and border-associated macrophages (BAMs). Traditionally, microglia are believed to originate from the embryonic yolk sac and possess lifelong self-renewal capabilities, while bone marrow (BM)-derived monocytes in adults cannot r...

Multisite DNA Methylation Alterations of Peripheral Blood Mononuclear Cells Serve as Novel Biomarkers for the Diagnosis of AIS/Stage I Lung Adenocarcinoma: A Multicenter Cohort Study

Novel Early Diagnosis Method for Lung Adenocarcinoma Based on DNA Methylation in Peripheral Blood Mononuclear Cells Background Lung adenocarcinoma (LUAD) is one of the leading causes of cancer-related deaths worldwide, accounting for approximately 40% of lung cancer cases. Despite significant advancements in treatment, the prognosis of LUAD remains...

Unravelling the Mosaic: Epigenetic Diversity in Glioblastoma

Epigenetic Diversity in Glioblastoma Academic Background Glioblastoma is the most common primary malignant brain tumor. Despite decades of research, its prognosis remains extremely poor, with an average survival of only 14 months after diagnosis. The significant heterogeneity of glioblastoma is one of the main reasons for the slow progress in its t...

Developmental Pluripotency-Associated 4 Increases Aggressiveness of Pituitary Neuroendocrine Tumors by Enhancing Cell Stemness

The Oncogenic Role of Dppa4 in Pituitary Neuroendocrine Tumors Academic Background Pituitary Neuroendocrine Tumors (PitNETs) are common intracranial tumors that often exhibit hormone-secreting functions and are a significant cause of hypogonadism and infertility in humans. Although most PitNETs can be controlled through surgery and medication, some...

Metabolic Rewiring Controlled by HIF-1α Tunes IgA-Producing B-Cell Differentiation and Intestinal Inflammation

Metabolic Rewiring Controlled by HIF-1α Tunes IgA-Producing B-Cell Differentiation and Intestinal Inflammation Background Introduction Germinal centers (GC) are critical sites for the clonal expansion of immune B cells and the affinity maturation of antibodies, as well as the occurrence of antibody class switching. Within the GC, B cells undergo so...

Epigenome-Wide Association Studies Identify Novel DNA Methylation Sites Associated with PTSD: A Meta-Analysis of 23 Military and Civilian Cohorts

Epigenome-wide DNA Methylation Study Highlights PTSD-Associated Sites: A Meta-Analysis Across 23 Military and Civilian Cohorts Background and Research Objectives Post-Traumatic Stress Disorder (PTSD) is a serious psychiatric condition triggered by exposure to traumatic events. It is characterized by intrusive memories, avoidance or emotional numbne...

Population-wide DNA Methylation Polymorphisms at Single-Nucleotide Resolution in 207 Cotton Accessions Reveal Epigenomic Contributions to Complex Traits

Cotton Population-Level DNA Methylation Polymorphism Study Reveals Epigenomic Contributions to Complex Traits Background and Research Motivation In recent decades, genome and genetic diversity have been extensively studied through genome-wide association studies (GWAS), providing a theoretical foundation for understanding crop trait variations. How...

Functional and Epigenetic Changes in Monocytes from Adults Immunized with an AS01-Adjuvanted Vaccine

Long-term Functional and Epigenetic Changes in Adult Monocytes Induced by AS01-adjuvanted Vaccine Background: Vaccine adjuvants are widely used to enhance the immune response of vaccines. In particular, the AS01 adjuvant, a key component in several approved vaccines, has demonstrated high immunogenicity and efficacy. AS01 exerts its adjuvant effect...

Uncovering Sex-Specific Epigenetic Regulatory Mechanism Involving H3K9me2 in Neural Inflammation, Damage, and Recovery in the Internal Carotid Artery Occlusion Mouse Model

Research Reveals Gender-Specific Epigenetic Regulatory Mechanisms in Neuroinflammation, Injury, and Recovery Background Ischemic stroke is one of the leading causes of death and disability worldwide. Due to limited understanding of its linked disease mechanisms, current treatments for alleviating acute ischemic brain injury are very limited. Recent...