POU2F3 (POU Class 2 Homeobox 3): POU2F3 is a transcription factor primarily involved in the differentiation of epithelial cells, especially in the skin and sensory organs. It plays a critical role in the development of tuft cells, a type of chemosensory cell found in the lining of the respiratory and digestive tracts. POU2F3 is also implicated in the development of certain types of squamous cell carcinomas....