Pan-cancer circulating tumor DNA detection in over 10,000 Chinese patients

  • Yongliang Zhang
  • , Yu Yao
  • , Yaping Xu
  • , Lifeng Li
  • , Yan Gong
  • , Kai Zhang
  • , Meng Zhang
  • , Yanfang Guan
  • , Lianpeng Chang
  • , Xuefeng Xia
  • , Lin Li
  • , Shuqin Jia
  • , Qiang Zeng

Research output: Contribution to journalArticlepeer-review

197 Scopus citations

Abstract

Circulating tumor DNA (ctDNA) provides a noninvasive approach to elucidate a patient’s genomic landscape and actionable information. Here, we design a ctDNA-based study of over 10,000 pan-cancer Chinese patients. Using parallel sequencing between plasma and white blood cells, 14% of plasma cell-free DNA samples contain clonal hematopoiesis (CH) variants, for which detectability increases with age. After eliminating CH variants, ctDNA is detected in 73.5% of plasma samples, with small cell lung cancer (91.1%) and prostate cancer (87.9%) showing the highest detectability. The landscape of putative driver genes revealed by ctDNA profiling is similar to that in a tissue-based database (R2 = 0.87, p < 0.001) but also shows some discrepancies, such as higher EGFR (44.8% versus 25.2%) and lower KRAS (6.8% versus 27.2%) frequencies in non-small cell lung cancer, and a higher TP53 frequency in hepatocellular carcinoma (53.1% versus 28.6%). Up to 41.2% of plasma samples harbor drug-sensitive alterations. These findings may be helpful for identifying therapeutic targets and combined treatment strategies.

Original languageEnglish
Article number11
JournalNature Communications
Volume12
Issue number1
DOIs
StatePublished - 1 Dec 2021
Externally publishedYes

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