Background: Several promising biomarkers have been found for RCC, but none of them has been used in clinical practice for predicting tumour progression. The most widely used features for predicting tumour aggressiveness still remain the cancer stage, size and grade. Therefore, the aim of our study is to investigate the urinary peptidome to search and identify peptides whose concentrations in urine are linked to tumour growth measure and clinical data. Methods: A proteomic approach applied to ccRCC urinary peptidome (n = 117) based on prefractionation with activated magnetic beads followed by MALDI-TOF profiling was used. A systematic correlation study was performed on urinary peptide profiles obtained from MS analysis. Peptide identity was obtained by LC-ESI-MS/MS. Results: Fifteen, twenty-six and five peptides showed a statistically significant alteration of their urinary concentration according to tumour size, pT and grade, respectively. Furthermore, 15 and 9 signals were observed to have urinary levels statistically modified in patients at different pT or grade values, even at very early stages. Among them, C1RL, A1AGx, ZAG2G, PGBM, MMP23, GP162, ADA19, G3P, RSPH3, DREB, NOTC2 SAFB2 and CC168 were identified. Conclusions: We identified several peptides whose urinary abundance varied according to tumour size, stage and grade. Among them, several play a possible role in tumorigenesis, progression and aggressiveness. These results could be a useful starting point for future studies aimed at verifying their possible use in the managements of RCC patients.

Chinello, C., Cazzaniga, M., Sio, G., Smith, A., Grasso, A., Rocco, B., et al. (2015). Tumor size, stage and grade alterations of urinary peptidome in RCC. JOURNAL OF TRANSLATIONAL MEDICINE, 13(1), 332 [10.1186/s12967-015-0693-8].

Tumor size, stage and grade alterations of urinary peptidome in RCC

CHINELLO, CLIZIA
;
CAZZANIGA, MARTA
Secondo
;
SMITH, ANDREW JAMES;GRASSO, MARCO;ZOPPIS, ITALO FRANCESCO;MAURI, GIANCARLO
Penultimo
;
MAGNI, FULVIO
Ultimo
2015

Abstract

Background: Several promising biomarkers have been found for RCC, but none of them has been used in clinical practice for predicting tumour progression. The most widely used features for predicting tumour aggressiveness still remain the cancer stage, size and grade. Therefore, the aim of our study is to investigate the urinary peptidome to search and identify peptides whose concentrations in urine are linked to tumour growth measure and clinical data. Methods: A proteomic approach applied to ccRCC urinary peptidome (n = 117) based on prefractionation with activated magnetic beads followed by MALDI-TOF profiling was used. A systematic correlation study was performed on urinary peptide profiles obtained from MS analysis. Peptide identity was obtained by LC-ESI-MS/MS. Results: Fifteen, twenty-six and five peptides showed a statistically significant alteration of their urinary concentration according to tumour size, pT and grade, respectively. Furthermore, 15 and 9 signals were observed to have urinary levels statistically modified in patients at different pT or grade values, even at very early stages. Among them, C1RL, A1AGx, ZAG2G, PGBM, MMP23, GP162, ADA19, G3P, RSPH3, DREB, NOTC2 SAFB2 and CC168 were identified. Conclusions: We identified several peptides whose urinary abundance varied according to tumour size, stage and grade. Among them, several play a possible role in tumorigenesis, progression and aggressiveness. These results could be a useful starting point for future studies aimed at verifying their possible use in the managements of RCC patients.
Articolo in rivista - Articolo scientifico
Scientifica
Cancer; Grade; Mass spectrometry; Peptidomics; Proteomics; Renal cell carcinoma; Stage; Tumour progression; Tumour size; Urine;
Cancer; Grade; Mass spectrometry; Peptidomics; Proteomics; Renal cell carcinoma; Stage; Tumour progression; Tumour size; Urine; Biochemistry, Genetics and Molecular Biology (all); Medicine (all)
English
Chinello, C., Cazzaniga, M., Sio, G., Smith, A., Grasso, A., Rocco, B., et al. (2015). Tumor size, stage and grade alterations of urinary peptidome in RCC. JOURNAL OF TRANSLATIONAL MEDICINE, 13(1), 332 [10.1186/s12967-015-0693-8].
Chinello, C; Cazzaniga, M; Sio, G; Smith, A; Grasso, A; Rocco, B; Signorini, S; Grasso, M; Bosari, S; Zoppis, I; Mauri, G; Magni, F
File in questo prodotto:
File Dimensione Formato  
10281-95618.pdf

accesso aperto

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Dimensione 2.91 MB
Formato Adobe PDF
2.91 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/95618
Citazioni
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 25
Social impact