title: Altered RNA turnover in carcinogenesis. The diagnostic potential of modified base excretion.
abstract: Excretion of urinary modified nucleosides is frequently elevated in patients with oncogenic disease. Increases of urinary pseudouridine excretion are now demonstrated in patients with a variety of brain tumors. The potential use of urinary modified base excretion as a cancer marker is discussed and possible sources of the elevated nucleosides are detailed. The specific steps in RNA metabolism that result in increased levels of RNA nucleoside excretion are poorly understood. This knowledge will be necessary to understand the molecular mechanism and the clinical significance of urinary nucleoside excretion in treatment and diagnosis of oncogenic disease.
authors.affiliation: Department of Radiation Oncology, University of Southern California, Los Angeles.
authors.forename: C C
authors.initials: CC
authors.lastname: Marvel
authors.forename: J
authors.initials: J
authors.lastname: Del Rowe
authors.forename: E G
authors.initials: EG
authors.lastname: Bremer
authors.forename: J R
authors.initials: JR
authors.lastname: Moskal
mesh_terms: D000328:Adult; D000818:Animals; D014408:Biomarkers, Tumor / Q000652:urine*; D002648:Child; D005260:Female; D006801:Humans; D009369:Neoplasms / Q000175:diagnosis / Q000378:metabolism* / Q000628:therapy / Q000652:urine; D009374:Neoplasms, Experimental / Q000378:metabolism; D012313:RNA / Q000378:metabolism*; D012334:RNA, Neoplasm / Q000378:metabolism*; D012263:Ribonucleosides / Q000652:urine*
chemical_list: D014408:Biomarkers, Tumor; D012334:RNA, Neoplasm; D012263:Ribonucleosides; D012313:RNA