Regulation of histone H3K27 methylation in inflammation and cancer

Epigenetics' Responsibility in Endometriosis: A comprehensive assessment

Endometriosis is a chronic inflammatory disease characterized by the presence of endometrial-like tissue outside the uterus, affecting women of reproductive age. Despite extensive research, its pathophysiology remains unclear, with genetic, hormonal, and environmental factors playing interconnected roles. Epigenetic processes, including non-coding RNAs, histone modifications, and DNA methylation, have been implicated in the genesis and progression of endometriosis. These modifications impact physiological functions such as inflammation, cell division, apoptosis, and hormone sensitivity. Recent findings on epigenetic alterations in endometriosis highlight their role in the abnormal behavior of ectopic endometrial-like cells. Aberrant DNA methylation patterns in genes related to immunological control and oestrogen metabolism contribute to the invasiveness and durability of lesions. Histone modifications, such as methylation and acetylation, regulate gene expression by altering chromatin structure. Non-coding RNAs, particularly microRNAs, influence tissue remodeling and inflammation. Given the reversible nature of epigenetic modifications, they present promising therapeutic targets for innovative treatment strategies. Epigenetic-based therapies aim to reverse pathological gene expression patterns, offering hope for more personalized and effective management of endometriosis. Further research is needed to fully utilize epigenetic processes in treating this debilitating disease.

The Role of Extracellular Vesicles in the Pathogenesis of Metabolic Dysfunction-Associated Steatotic Liver Disease and Other Liver Diseases

The increasing prevalence of liver diseases, such as metabolic dysfunction-associated steatotic liver disease (MASLD), presents considerable medical challenges, particularly given the absence of approved pharmacological treatments, which underscores the necessity to comprehend its underlying mechanisms. Extracellular vesicles (EVs), which are tiny particles released by cells, play a crucial role in facilitating communication and can transport harmful molecules that promote inflammation and tissue damage. These EVs are involved in the progression of various types of liver disorders since they aggravate inflammation and oxidative stress. Because of their critical role, it is believed that EVs are widely involved in the initiation and progression of MASLD, as well as in viral hepatitis, alcoholic liver disease, drug-induced liver injury, and hepatocellular carcinoma. This review emphasizes recent findings regarding the functions of EVs in the above liver pathologies and underscores their potential as new therapeutic targets, paving the way for innovative approaches to address those detrimental liver conditions.