2
|
Ammanamanchi N, Yester J, Bargaje AP, Thomas D, Little KC, Janzef S, Francis K, Weinberg J, Johnson J, Seery T, Harris TH, Funari BJ, Rose-Felker K, Zinn M, Miller SA, West SC, Feingold B, Zhou H, Steinhauser ML, Csernica T, Michener R, Kühn B. Elimination of 15N-thymidine after oral administration in human infants. PLoS One 2024; 19:e0295651. [PMID: 38271331 PMCID: PMC10810423 DOI: 10.1371/journal.pone.0295651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/28/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND We have developed a new clinical research approach for the quantification of cellular proliferation in human infants to address unanswered questions about tissue renewal and regeneration. The approach consists of oral 15N-thymidine administration to label cells in S-phase, followed by Multi-isotope Imaging Mass Spectrometry for detection of the incorporated label in cell nuclei. To establish the approach, we performed an observational study to examine uptake and elimination of 15N-thymidine. We compared at-home label administration with in-hospital administration in infants with tetralogy of Fallot, a form of congenital heart disease, and infants with heart failure. METHODS We examined urine samples from 18 infants who received 15N-thymidine (50 mg/kg body weight) by mouth for five consecutive days. We used Isotope Ratio Mass Spectrometry to determine enrichment of 15N relative to 14N (%) in urine. RESULTS/FINDINGS 15N-thymidine dose administration produced periodic rises of 15N enrichment in urine. Infants with tetralogy of Fallot had a 3.2-fold increase and infants with heart failure had a 4.3-fold increase in mean peak 15N enrichment over baseline. The mean 15N enrichment was not statistically different between the two patient populations (p = 0.103). The time to peak 15N enrichment in tetralogy of Fallot infants was 6.3 ± 1 hr and in infants with heart failure 7.5 ± 2 hr (mean ± SEM). The duration of significant 15N enrichment after a dose was 18.5 ± 1.7 hr in tetralogy of Fallot and in heart failure 18.2 ± 1.8 hr (mean ± SEM). The time to peak enrichment and duration of enrichment were also not statistically different (p = 0.617 and p = 0.887). CONCLUSIONS The presented results support two conclusions of significance for future applications: (1) Demonstration that 15N-thymidine label administration at home is equivalent to in-hospital administration. (2) Two different types of heart disease show no differences in 15N-thymidine absorption and elimination. This enables the comparative analysis of cellular proliferation between different types of heart disease.
Collapse
Affiliation(s)
- Niyatie Ammanamanchi
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Jessie Yester
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Anita P. Bargaje
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Dawn Thomas
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Kathryn C. Little
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Clinical Research Support Services (CRSS), Department of Pediatrics, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
| | - Shannon Janzef
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Kimberly Francis
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Jacqueline Weinberg
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Jennifer Johnson
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Thomas Seery
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Tyler Hutchinson Harris
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Bryan J. Funari
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Kirsten Rose-Felker
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Matthew Zinn
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Susan A. Miller
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Shawn C. West
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Brian Feingold
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Hairu Zhou
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Matthew L. Steinhauser
- UPMC Heart and Vascular Institute, UPMC Presbyterian, Pittsburgh, PA, United States of America
- Aging Institute, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Timothy Csernica
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, United States of America
| | - Robert Michener
- Department of Biology, Boston University Stable Isotope Laboratory, Boston, MA, United States of America
| | - Bernhard Kühn
- Division of Pediatric Cardiology, Pediatric Institute for Heart Regeneration and Therapeutics (I-HRT), UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States of America
- McGowan Institute of Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| |
Collapse
|