Term Name:	T-helper 9 cell
Synonyms:	T helper cells type 9, T(H)-9 cell, Th9
Definition:	A T-helper cell that is characterized by secreting interleukin 9 and responding to helminth infections. This cell-type can derives from Th2 cells in the presence of TGF-beta and IL-4. Th2 cytokine production is surpressed.
Ontology:	Cell Ontology [CL:0002061]