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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Ghantous, Akram Nusslé, Semira Gonseth Nassar, Farah J. Spitz, Natalia Novoloaca, Alexei Krali, Olga Nickels, Eric Cahais, Vincent Cuenin, Cyrille Roy, Ritu Li, Shaobo Caron, Maxime Lam, Dilys Fransquet, Peter Daniel Casement, John Strathdee, Gordon Pearce, Mark S. Hansen, Helen M. Lee, Hwi-Ho Lee, Yong Sun de Smith, Adam J. Sinnett, Daniel Håberg, Siri Eldevik McKay, Jill A. Nordlund, Jessica Magnus, Per Dwyer, Terence Saffery, Richard Wiemels, Joseph Leo Munthe-Kaas, Monica Cheng Herceg, Zdenko |
| Abstract | Background Cancer is the leading cause of disease-related mortality in children. Causes of leukemia, the most common form, are largely unknown. Growing evidence points to an origin in-utero, when global redistribution of DNA methylation occurs driving tissue differentiation. Methods Epigenome-wide DNA methylation was profiled in surrogate (blood) and target (bone marrow) tissues at birth, diagnosis, remission and relapse of pediatric pre-B acute lymphoblastic leukemia (pre-B ALL) patients. Double-blinded analyses was performed between prospective cohorts extending from birth to diagnosis and retrospective studies backtracking from clinical disease to birth. Validation was carried out using independent technologies and populations. Results The imprinted and immuno-modulating VTRNA2-1 was hypermethylated (FDR<0.05) at birth in nested cases relative to controls in all tested populations (totaling 317 cases and 483 controls), including European and Hispanic ancestries. VTRNA2-1 methylation was stable over follow-up years after birth and across surrogate, target and other tissues (n=5,023 tissues; 30 types). When profiled in leukemic tissues from two clinical cohorts (totaling 644 cases), VTRNA2-1 methylation exhibited higher levels at diagnosis relative to controls, it reset back to normal levels at remission, and then re-increased to above control levels at relapse. Hypermethylation was significantly associated with worse pre-B ALL patient survival and with reduced VTRNA2-1 expression (n=2,294 tissues; 26 types), supporting a functional and translational role for VTRNA2-1 methylation. Conclusion This study provides proof-of-concept to detect at birth epigenetic precursors of pediatric pre-B ALL. These alterations were reproducible with different technologies, in three continents and in two ethnicities, and can offer biomarkers for early detection and prognosis as well as actionable targets for therapy. |
| Related Links | https://molecular-cancer.biomedcentral.com/counter/pdf/10.1186/s12943-024-02118-4.pdf |
| Ending Page | 8 |
| Page Count | 8 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14764598 |
| DOI | 10.1186/s12943-024-02118-4 |
| Journal | Molecular Cancer |
| Issue Number | 1 |
| Volume Number | 23 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2024-10-23 |
| Access Restriction | Open |
| Subject Keyword | Cancer Research Oncology VTRNA2-1 Pediatric leukemia Epigenetics DNA methylation Birth cohort Neonatal blood spots |
| Content Type | Text |
| Resource Type | Correspondence |
| Subject | Oncology Molecular Medicine Cancer Research |
| Journal Impact Factor | 27.7/2023 |
| 5-Year Journal Impact Factor | 31.3/2023 |
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