Serum neopterin concentrations and tryptophan degradation pattern in patients with late stage larynx carcinoma
As the disease-free 5-year-survival of late stage laryngeal carcinoma patients is extremely low, indoleamine-2,3-dioxygenase-1 (IDO)-induced tryptophan degradation may represent an immune escape mechanism which plays an important role in lightemupsequences.com cancer spreading in advanced stage laryngeal cancers.We examined whether the late stage l