Table 1.

Differential localization of human NK2 genes expression during development and adulthood.

NKX2 gene	Major Tissues Expression during development	Major Tissues Expression during adulthood
NKX2-1	lung, tracheoesophageal primordium, thyroid, diencephalon, hypothalamus, neurohypophysis, telencephalon, hypothalamus	lung, thyroid, hypothalamus, pituitary gland
NKX2-2	pancreas, intestine, diencephalon, hypothalamus, thalamus	pancreas, intestine, hypothalamus, pituitary gland
NKX2-4	telencephalon, hypothalamus	hypothalamus, pituitary gland
NKX2-8	thyroid, pharynx, lung, spinal cord, hindbrain	lung, thyroid, esophagus, hypothalamus, pituitary gland