Abstract
Glycosylation changes of cancer cells are known to be associated with malignant progression and metastases and potentially determine the organ-selective nature of metastasis as theorized by Paget (Lancet 1:571–573, 1889). Cellular glycans play a variety of roles in the processes of metastasis and may be unique to the cells that metastasize to different organs. We analyzed the glycosylation profiles of the primary tumor and tumors metastasized to lymph node, liver, lung, brain, bone, thyroid, kidney, adrenal, small intestine and pancreas in an autopsy case of breast cancer employing a lectin microarray with 45 lectins. Clustering analysis of the data revealed that metastatic breast cancer cells were categorized into several clusters according to their glycosylation profiles. Our results provide a biological basis to understand differential phenotypes of metastatic breast cancer cells potentially reflecting clonal origin, which does not directly reflect genomic or genetic changes or microenvironmental effects but connects to glycosylation profiles.
References
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Acknowledgements
We would like to express our deepest gratitude to this patient and her family for consenting to the pathological autopsy. We also wish to thank the members of the Laboratory of Morphology and Image Analysis, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, for technical assistance.
Funding
Funding was provided by Japan Agency for Medical Research and Development (Grant No. JP19ae0101026) and by Japan Society for the Promotion of Science (KAKENHI Grant No. 23K06748).
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Conceptualization: YH, TI; Methodology: KD-N, MN, HF, HS, MA; Formal analysis and investigation: MTH, YH; Statistical analysis: SS; Writing-original draft: TI, YH; Writing-review and editing: TI, KI-S, YH; Funding acquisition: TI, MS; Resources: MS, YH; Supervision: YH, TI. All authors reviewed the manuscript.
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The authors have no relevant financial or non-financial interests to disclose.
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Ethical approval was obtained from the Ethics Committee of Juntendo University Hospital (no. H19-0289).
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Regarding informed consent, the patient could see the research plan on the website of the hospital and was offered the choice to opt out of the study at any time. Consent to the use of autopsy tumor tissue was obtained from the family of the deceased patient.
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Horimoto, Y., Hlaing, M.T., Saeki, H. et al. Glycosylation profiles of breast cancer cells may represent clonal variations of multiple organ metastases. Clin Exp Metastasis 41, 267–270 (2024). https://doi.org/10.1007/s10585-023-10253-3
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DOI: https://doi.org/10.1007/s10585-023-10253-3