Sci Transl Med 18 June 2014:
Vol. 6, Issue 241, p. 241ra77
Sci. Transl. Med. DOI: 10.1126/scitranslmed.3007803
Vol. 6, Issue 241, p. 241ra77
Sci. Transl. Med. DOI: 10.1126/scitranslmed.3007803
- RESEARCH ARTICLE
Circulating Cell-Free DNA Enables Noninvasive Diagnosis of Heart Transplant Rejection
- Iwijn De Vlaminck1,2,
- Hannah A. Valantine3,
- Thomas M. Snyder1,2,
- Calvin Strehl3,
- Garrett Cohen3,
- Helen Luikart3,
- Norma F. Neff1,2,
- Jennifer Okamoto1,2,
- Daniel Bernstein4,
- Dana Weisshaar5,
- Stephen R. Quake1,2,* and
- Kiran K. Khush3,*
+Author Affiliations
- ↵*Corresponding author. E-mail: kiran@stanford.edu (K.K.K.); quake@stanford.edu (S.R.Q.)
Abstract
Monitoring allograft health is an important component of posttransplant therapy. Endomyocardial biopsy is the current gold standard for cardiac allograft monitoring but is an expensive and invasive procedure. Proof of principle of a universal, noninvasive diagnostic method based on high-throughput screening of circulating cell-free donor-derived DNA (cfdDNA) was recently demonstrated in a small retrospective cohort. We present the results of a prospective cohort study (65 patients, 565 samples) that tested the utility of cfdDNA in measuring acute rejection after heart transplantation. Circulating cell-free DNA was purified from plasma and sequenced (mean depth, 1.2 giga–base pairs) to quantify the fraction of cfdDNA. Through a comparison with endomyocardial biopsy results, we demonstrate that cfdDNA enables diagnosis of acute rejection after heart transplantation, with an area under the receiver operating characteristic curve of 0.83 and sensitivity and specificity that are comparable to the intrinsic performance of the biopsy itself. This noninvasive genome transplant dynamics approach is a powerful and informative method for routine monitoring of allograft health without incurring the risk, discomfort, and expense of an invasive biopsy.
- Copyright © 2014, American Association for the Advancement of Science
Citation: Circulating Cell-Free DNA Enables Noninvasive Diagnosis of Heart Transplant Rejection. Sci. Transl. Med. 6, 241ra77 (2014).
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