Low frequency variants associated with leukocyte telomere length in the Singapore Chinese population

  • Xuling Chang
  • , Resham L. Gurung
  • , Ling Wang
  • , Aizhen Jin
  • , Zheng Li
  • , Renwei Wang
  • , Kenneth B. Beckman
  • , Jennifer Adams-Haduch
  • , Wee Yang Meah
  • , Kar Seng Sim
  • , Weng Khong Lim
  • , Sonia Davila
  • , Patrick Tan
  • , Jing Xian Teo
  • , Khung Keong Yeo
  • , Yiamunaa M
  • , Sylvia Liu
  • , Su Chi Lim
  • , Jianjun Liu
  • , Rob M. van Dam
  • Yechiel Friedlander, Woon Puay Koh, Jian Min Yuan, Chiea Chuen Khor, Chew Kiat Heng, Rajkumar Dorajoo

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The role of low frequency variants associated with telomere length homeostasis in chronic diseases and mortalities is relatively understudied in the East-Asian population. Here we evaluated low frequency variants, including 1,915,154 Asian specific variants, for leukocyte telomere length (LTL) associations among 25,533 Singapore Chinese samples. Three East Asian specific variants in/near POT1, TERF1 and STN1 genes are associated with LTL (Meta-analysis P 2.49×10−14–6.94×10−10). Rs79314063, a missense variant (p.Asp410His) at POT1, shows effect 5.3 fold higher and independent of a previous common index SNP. TERF1 (rs79617270) and STN1 (rs139620151) are linked to LTL-associated common index SNPs at these loci. Rs79617270 is associated with cancer mortality [HR95%CI = 1.544 (1.173, 2.032), PAdj = 0.018] and 4.76% of the association between the rs79617270 and colon cancer is mediated through LTL. Overall, genetically determined LTL is particularly associated with lung adenocarcinoma [HR95%CI = 1.123 (1.051, 1.201), Padj = 0.007]. Ethnicity-specific low frequency variants may affect LTL homeostasis and associate with certain cancers.

Original languageEnglish (US)
Article number519
JournalCommunications biology
Volume4
Issue number1
DOIs
StatePublished - Dec 2021

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© 2021, The Author(s).

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