Thymidine phosphorylase (TYMP) mRNA (TYMP mRNA)

Thymidine phosphorylase (TYMP) mRNA is the messenger RNA transcript that encodes the TYMP enzyme, also known as platelet-derived endothelial cell growth factor (PD-ECGF) [1, 2]. This molecule is a critical component of the pyrimidine salvage pathway, where the encoded enzyme catalyzes the conversion of thymidine to thymine and 2-deoxy-D-ribose-1-phosphate [1]. In the context of oncology, TYMP mRNA is frequently overexpressed in solid tumors, where it promotes angiogenesis, tumor cell survival, and metastasis [3, 4]. It serves as a vital predictive biomarker for fluoropyrimidine-based chemotherapies, such as capecitabine, because the TYMP enzyme is required to convert the prodrug into its active form, 5-fluorouracil [3]. Conversely, deficiency of this transcript due to genetic mutations leads to mitochondrial neurogastrointestinal encephalopathy (MNGIE), a severe metabolic disorder characterized by systemic accumulation of thymidine and deoxyuridine [5]. Current therapeutic interest involves using TYMP mRNA levels to stratify patients for chemotherapy or developing RNA-targeted therapies like siRNAs to inhibit its pro-angiogenic effects in cancer [4].

Other names

Platelet-derived endothelial cell growth factor mRNAPD-ECGF mRNAECGF1 mRNAGliostatin mRNATP mRNAPDECGF mRNA

Acts as the genetic template for the synthesis of thymidine phosphorylase, an enzyme that activates fluoropyrimidine prodrugs and induces angiogenesis; targeted by RNA-based therapeutics for gene silencing.