» Articles » PMID: 36083902

Heat Selection Enables Highly Scalable Methylome Profiling in Cell-free DNA for Noninvasive Monitoring of Cancer Patients

Abstract

Genome-wide analysis of cell-free DNA methylation profile is a promising approach for sensitive and specific detection of many cancers. However, scaling such assays for clinical translation is impractical because of the high cost of whole-genome bisulfite sequencing. We show that the small fraction of GC-rich genome is highly enriched in CpG sites and disproportionately harbors most of the cancer-specific methylation signature. Here, we report on the simple and effective heat enrichment of CpG-rich regions for bisulfite sequencing (Heatrich-BS) platform that allows for focused methylation profiling in these highly informative regions. Our novel method and bioinformatics algorithm enable accurate tumor burden estimation and quantitative tracking of colorectal cancer patient's response to treatment at much reduced sequencing cost suitable for frequent monitoring. We also show tumor epigenetic subtyping using Heatrich-BS, which could enable patient stratification. Heatrich-BS holds great potential for highly scalable screening and monitoring of cancer using liquid biopsy.

Citing Articles

Pioneering noninvasive colorectal cancer detection with an AI-enhanced breath volatilomics platform.

Liu Y, Ji Y, Chen J, Zhang Y, Li X, Li X Theranostics. 2024; 14(11):4240-4255.

PMID: 39113791 PMC: 11303087. DOI: 10.7150/thno.94950.


Programmable melanoma-targeted radio-immunotherapy via fusogenic liposomes functionalized with multivariate-gated aptamer assemblies.

Ren X, Xue R, Luo Y, Wang S, Ge X, Yao X Nat Commun. 2024; 15(1):5035.

PMID: 38866788 PMC: 11169524. DOI: 10.1038/s41467-024-49482-9.


Erasable and Field Programmable DNA Circuits Based on Configurable Logic Blocks.

Liu Y, Zhai Y, Hu H, Liao Y, Liu H, Liu X Adv Sci (Weinh). 2024; 11(26):e2400011.

PMID: 38698560 PMC: 11234411. DOI: 10.1002/advs.202400011.


DARESOME enables concurrent profiling of multiple DNA modifications with restriction enzymes in single cells and cell-free DNA.

Viswanathan R, Cheruba E, Wong P, Yi Y, Ngang S, Chong D Sci Adv. 2023; 9(37):eadi0197.

PMID: 37713482 PMC: 10881072. DOI: 10.1126/sciadv.adi0197.


Liquid biopsies for cancer: From bench to clinic.

Chen Z, Li C, Zhou Y, Yao Y, Liu J, Wu M MedComm (2020). 2023; 4(4):e329.

PMID: 37492785 PMC: 10363811. DOI: 10.1002/mco2.329.


References
1.
Doherty A, Wigley D . Functional domains of an ATP-dependent DNA ligase. J Mol Biol. 1999; 285(1):63-71. DOI: 10.1006/jmbi.1998.2301. View

2.
Carter S, Cibulskis K, Helman E, McKenna A, Shen H, Zack T . Absolute quantification of somatic DNA alterations in human cancer. Nat Biotechnol. 2012; 30(5):413-21. PMC: 4383288. DOI: 10.1038/nbt.2203. View

3.
Sproul D, Meehan R . Genomic insights into cancer-associated aberrant CpG island hypermethylation. Brief Funct Genomics. 2013; 12(3):174-90. PMC: 3662888. DOI: 10.1093/bfgp/els063. View

4.
Li W, Li Q, Kang S, Same M, Zhou Y, Sun C . CancerDetector: ultrasensitive and non-invasive cancer detection at the resolution of individual reads using cell-free DNA methylation sequencing data. Nucleic Acids Res. 2018; 46(15):e89. PMC: 6125664. DOI: 10.1093/nar/gky423. View

5.
Sun K, Jiang P, Chan K, Wong J, Cheng Y, Liang R . Plasma DNA tissue mapping by genome-wide methylation sequencing for noninvasive prenatal, cancer, and transplantation assessments. Proc Natl Acad Sci U S A. 2015; 112(40):E5503-12. PMC: 4603482. DOI: 10.1073/pnas.1508736112. View