TACR1 and laryngeal carcinoma: Our group demonstrated, in a wide variety of tumour cell lines, that SP induced neoplastic growth and the NK1R antagonists exerted antitumour activity, inducing apoptosis (as an example, cells lines from laryngeal carcinoma, melanoma, glioma, retinoblastoma, neuroblastoma, among others) [10,62,63,98,99].