The Development of Brain Tumours
At this stage we speak of pluripotent cells, capable of differentiating into any cell, neurons, heart cells, liver cells… Some cells, however, retain this ability to multiply, they are called stem cells and their role is to replace the cells in our body that die during our lifetime.
The vast majority of cells then receive a second signal that commits them to a location, such as the brain, liver, heart, etc.
Then a third signal from the organ itself, leads to their differentiation into a particular cell type with very specific functions and morphology, for example in the brain, neurons, oligodendrocytes, astrocytes….
In adulthood, the cells that make up our organism are, for the most part, highly specialized and have lost their ability to proliferate.
At the origin of tumours in the brain or any other organ, there is a reappearance of the capacity of cells to multiply infinitely. These cells multiply anarchically and continuously forming a cluster, the tumour.
