Exploring the Drug Repurposing Versatility of Valproic Acid as a Multifunctional Regulator of Innate and Adaptive Immune Cells
 March 2019   
in “
 Journal of immunology research 
”
 
    Valproic Acid  VPA  epigenetic changes  gene expression  cell cycle  differentiation  apoptosis  anti-inflammatory response  myeloid hematopoietic progenitors  macrophage activity  intracellular bacterial infections  tuberculosis  dendritic cell maturation  neutrophil function  natural killer cell function  NK cell function  eosinophils  basophils  mast cells  cytokine production  T lymphocyte function  B lymphocyte function  regulatory T cells  Treg  autoimmune diseases  cancer  infectious diseases  T cell function  B cell function   
   
   TLDR  Valproic Acid could potentially be used to treat immune-related conditions due to its ability to modify immune cell functions.   
  The document from 2019 reviews the impact of Valproic Acid (VPA) on immune cells, suggesting its potential as a drug for repurposing in immune-related conditions. VPA modulates epigenetic changes affecting gene expression related to the cell cycle, differentiation, and apoptosis in immune cells, leading to an anti-inflammatory response. It has been shown to induce apoptosis in tumor cells, affect the differentiation of myeloid hematopoietic progenitors, influence macrophage activity, and impact the control of intracellular bacterial infections like tuberculosis. VPA also disrupts dendritic cell maturation, impairs neutrophil and natural killer (NK) cell function, and has varying effects on other immune cells such as eosinophils, basophils, and mast cells. It interferes with cytokine production, affects T and B lymphocyte function, and promotes the generation of regulatory T cells (Treg). The document concludes that VPA's complex immunomodulatory role could be harnessed for therapeutic purposes in autoimmune diseases, cancer, and certain infectious diseases, but more research is needed to fully understand its effects.