PCM (Pericentrion Material)

PCM, or Pericentriolar Material, is a dense, protein-rich area surrounding the centrioles within a cell's centrosome. It plays a critical role in organizing and anchoring microtubules, which are structural components essential for cell shape, transport, and division. Think of PCM as a hub that helps coordinate the cellular "skeleton," ensuring that microtubules are correctly assembled and positioned. Its function is vital for proper cell division and maintaining cellular organization, making it a key player in cell biology and overall cellular health.