An immune response taking place in the brain or nervous system.

Any process that increases the rate, frequency or extent of macrophage chemotaxis. Macrophage chemotaxis is the movement of a macrophage in response to an external stimulus.

The process in which a relatively unspecialized cell acquires specialized features of a microglial cell. Microglia are glial cells that act as the immune cells of the central nervous system. They form part of the supporting structure of this system.

The process in which a relatively unspecialized cell acquires specialized features of a melanocyte.

The process whose specific outcome is the progression of a osteoclast from its formation to the mature structure. Cell development does not include the steps involved in committing a cell to a specific fate. An osteoclast is a specialized phagocytic cell associated with the absorption and removal of the mineralized matrix of bone tissue.

The accumulation of pigment in an organism, tissue or cell, either by increased deposition or by increased number of cells.

The developmental process that results in the deposition of coloring matter in an organism, tissue or cell.

The developmental process that results in the deposition of coloring matter in an organism, tissue or cell.

The movement of a macrophage in response to an external stimulus.

The process in which a relatively unspecialized cell acquires the specialized features of a xanthophore cell. Xanthophores are pigment cells derived from the neural crest. They contain pteridine and/or carotenoid pigments in structures called pterinosomes or xanthosomes. This makes them yellow to orange in appearance.

Any process that increases the rate, frequency, or extent of neural retina development, the progression of the neural retina over time from its initial formation to the mature structure. The neural retina is the part of the retina that contains neurons and photoreceptor cells.

The orderly movement of melanocytes from one site to another, often during the development of a multicellular organism. A melanocyte is a pigment cell derived from the neural crest. It contains melanin-filled pigment granules, which give a brown to black appearance.