Nature Communications (Feb 2024)

Unraveling the role of the mitochondrial one-carbon pathway in undifferentiated thyroid cancer by multi-omics analyses

  • Seong Eun Lee,
  • Seongyeol Park,
  • Shinae Yi,
  • Na Rae Choi,
  • Mi Ae Lim,
  • Jae Won Chang,
  • Ho-Ryun Won,
  • Je Ryong Kim,
  • Hye Mi Ko,
  • Eun-Jae Chung,
  • Young Joo Park,
  • Sun Wook Cho,
  • Hyeong Won Yu,
  • June Young Choi,
  • Min-Kyung Yeo,
  • Boram Yi,
  • Kijong Yi,
  • Joonoh Lim,
  • Jun-Young Koh,
  • Min Jeong Lee,
  • Jun Young Heo,
  • Sang Jun Yoon,
  • Sung Won Kwon,
  • Jong-Lyul Park,
  • In Sun Chu,
  • Jin Man Kim,
  • Seon-Young Kim,
  • Yujuan Shan,
  • Lihua Liu,
  • Sung-A Hong,
  • Dong Wook Choi,
  • Junyoung O. Park,
  • Young Seok Ju,
  • Minho Shong,
  • Seon-Kyu Kim,
  • Bon Seok Koo,
  • Yea Eun Kang

DOI
https://doi.org/10.1038/s41467-024-45366-0
Journal volume & issue
Vol. 15, no. 1
pp. 1 – 17

Abstract

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Abstract The role of the serine/glycine metabolic pathway (SGP) has recently been demonstrated in tumors; however, the pathological relevance of the SGP in thyroid cancer remains unexplored. Here, we perform metabolomic profiling of 17 tumor-normal pairs; bulk transcriptomics of 263 normal thyroid, 348 papillary, and 21 undifferentiated thyroid cancer samples; and single-cell transcriptomes from 15 cases, showing the impact of mitochondrial one-carbon metabolism in thyroid tumors. High expression of serine hydroxymethyltransferase-2 (SHMT2) and methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is associated with low thyroid differentiation scores and poor clinical features. A subpopulation of tumor cells with high mitochondrial one-carbon pathway activity is observed in the single-cell dataset. SHMT2 inhibition significantly compromises mitochondrial respiration and decreases cell proliferation and tumor size in vitro and in vivo. Collectively, our results highlight the importance of the mitochondrial one-carbon pathway in undifferentiated thyroid cancer and suggest that SHMT2 is a potent therapeutic target.