ArticleBritish journal of cancer2024
Mitochondrial DNA copy number plays opposing roles in T-lymphocyte infiltration of colorectal cancer based on mismatch repair status: new directions for immunotherapy?
Article in British journal of cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 5 citations in OpenAlex.
- Recent research progress and clinical status of immunotherapy for colorectal cancer.Journal of advanced research · 2026Review
- Unraveling the telomere-mitochondrial axis in colorectal cancer: Results from a prospectively followed cohort.Molecular medicine (Cambridge, Mass.) · 2026Article
- Mitochondrial dysfunction as a metabolic checkpoint of immunotherapy response in colorectal cancer.Frontiers in immunology · 2026Review
- The mitochondrial DNA-cGAS-STING axis in colorectal cancer: a focused review of context-dependent roles and therapeutic opportunities.Frontiers in molecular biosciences · 2026Review
- Epigenetic regulation of NR5A2 influences colorectal cancer cell stemness via a stemness-related transcription factor NANOG.Cell communication and signaling : CCS · 2025Article
- Identification and validation of a ferroptosis-related long non-coding RNA signature as a prognostic biomarker for hepatocellular carcinoma.Journal of gastrointestinal oncology · 2025Article
- Oxidized Low-Density Lipoprotein as a Potential Target for Enhancing Immune Checkpoint Inhibitor Therapy in Microsatellite-Stable Colorectal Cancer.Antioxidants (Basel, Switzerland) · 2025Review
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundResearchers have previously reported that mitochondrial DNA copy number (mtDNA-CN) can play different roles in microsatellite instable/mismatch repair-deficient (MSI/dMMR) and microsatellite stable/mismatch repair-proficient (MSS/pMMR) colorectal cancer (CRC). To support malignancy, dMMR CRC relies on glycolysis, while pMMR CRC favors oxidative phosphorylation. However, it is unclear whether mtDNA-CN changes are related to T cell infiltration in CRC.
methodsThe mtDNA-CN was detected by qRT-PCR in 532 patients, and the expression of CD3 and CD8 in 485 patients was detected by immunohistochemistry. The correlation between mtDNA-CN and the prognosis of CRC patients was further analyzed, and the correlation between mtDNA-CN and T lymphocyte infiltration was also analyzed. Biopsy specimens from the immune checkpoint inhibitors (ICIs) treatment cohort were obtained to verify the correlation between mtDNA-CN and the efficacy of ICIs. The effects of mtDNA-CN and MMR status on gene expression were analyzed by RNA-seq.
resultsOur results show that mtDNA-CN has inverse relationships to CRC prognosis in cases with different MMR statuses, potentially inducing the U-shaped association in CRC. The opposing correlations between mtDNA-CN and T lymphocyte infiltration in cases of dMMR CRC and pMMR CRC further suggest that mtDNA-CN might play an important role in CRC development. More importantly, cases of pMMR CRC with lower mtDNA-CN and of dMMR CRC with higher mtDNA-CN can benefit more dramatically from ICIs. Furthermore, RNA-seq revealed a link between the level of mtDNA-CN and T lymphocyte infiltration in CRC cases with different MMR statuses.
conclusionOur study found a potential relationship between mtDNA-CN and CRC development that differs by MMR status, potentially providing a rationale for the use of mtDNA-CN as both a predictive biomarker and a therapeutic target for ICIs.
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