New inflammatory indicators for cell-based liquid biopsy: association of the circulating CD44+/CD24- non-hematopoietic rare cell phenotype with breast cancer residual disease.
In: Journal of cancer research and clinical oncology, Jg. 149 (2023-07-01), Heft 8, S. 4347-4358
Online
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Zugriff:
Background: Breast cancer residual disease assessment in early-stage patients has been challenging and lacks routine identification of adjuvant therapy benefit and objective measure of therapy success. Liquid biopsy assays targeting tumor-derived entities are investigated for minimal residual disease detection, yet perform low in clinical sensitivity. We propose the detection of CD44-related systemic inflammation for the assessment of residual cancer.
Methods: Circulating CD44+/CD45- rare cells from healthy, noncancer- and cancer-afflicted donors were enriched by CD45 depletion and analyzed by immuno-fluorescence microscopy. CD44+ rare cell subtyping was based on cytological feature analysis and referred to as morphological index. AUC analysis was employed for identification of the most cancer-specific CD44+ subtype.
Results: The EpCam-/CD44+/CD24-/CD71-/CD45-/DNA+ phenotype alludes to a distinct cell type and was found frequently at concentrations below 5 cells per 5 mL in healthy donors. Marker elevation by at least 5 × on average was observed in all afflicted cohorts. The positive predicted value for the prediction of malignancy-associated systemic inflammation of a CD44+ rare cell subtype with a higher morphological index was 87%. An outlook for the frequency of sustained inflammation in residual cancer may be given to measure 78%.
Conclusion: The CD44+ rare cell and subtype denotes improvement in detection of residual cancer disease and may provide an objective and alternative measure of disease burden in early-stage breast cancer.
(© 2022. The Author(s).)
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New inflammatory indicators for cell-based liquid biopsy: association of the circulating CD44+/CD24- non-hematopoietic rare cell phenotype with breast cancer residual disease.
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Autor/in / Beteiligte Person: | Schreier, S ; Budchart, P ; Borwornpinyo, S ; Arpornwirat, W ; Lertsithichai, P ; Chirappapha, P ; Triampo, W |
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Zeitschrift: | Journal of cancer research and clinical oncology, Jg. 149 (2023-07-01), Heft 8, S. 4347-4358 |
Veröffentlichung: | Berlin ; New York : Springer-Verlag., 2023 |
Medientyp: | academicJournal |
ISSN: | 1432-1335 (electronic) |
DOI: | 10.1007/s00432-022-04330-5 |
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