Tryptophan degradation is a key metabolic pathway controlling immune reactions and evidence suggests that during cancer progression generation of tryptophan metabolites may be fundamental for immune escape promoting the malignant phenotype of cancer cells in an autocrine fashion. The present invention relates to methods of measuring mass tag labelled tryptophan and metabolites thereof and methods using the labelled molecules for monitoring in a subject the effectiveness of a treatment and of disease recurrence after treatment, for stratifying patients and for diagnosing suppression of an immune response in a subject.
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氨酸降解是控制免疫反应的关键代谢途径,有证据表明,在癌症发展过程中,色
氨酸代谢物的产生可能是免疫逃逸的基础,以自分泌方式促进癌细胞的恶性表型。本发明涉及测量质量标签标记的色
氨酸及其代谢物的方法,以及使用标记的分子监测受试者的治疗效果和治疗后疾病复发情况、对患者进行分层和诊断受试者免疫反应抑制情况的方法。