2024
Orthotopic model for the analysis of melanoma circulating tumor cells
PICKOVÁ, Markéta, Zuzana KAHOUNOVÁ, Tomasz Witold RADASZKIEWICZ, Jiřina PROCHÁZKOVÁ, Radek FEDR et. al.Základní údaje
Originální název
Orthotopic model for the analysis of melanoma circulating tumor cells
Autoři
PICKOVÁ, Markéta, Zuzana KAHOUNOVÁ, Tomasz Witold RADASZKIEWICZ, Jiřina PROCHÁZKOVÁ, Radek FEDR, Michaela NOSKOVA, Katarzyna Anna RADASZKIEWICZ, Petra OVESNA, Vítězslav BRYJA a Karel SOUČEK
Vydání
Nature Scientific Reports, BERLIN, NATURE PORTFOLIO, 2024, 2045-2322
Další údaje
Typ výsledku
Článek v odborném periodiku
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.800 v roce 2023
UT WoS
001273217900058
Klíčová slova anglicky
In vivo model; Melanoma; Circulating tumor cells; Metastasis; Tumorectomy
Změněno: 24. 3. 2025 10:00, Mgr. Jiřina Procházková, Ph.D.
Anotace
V originále
Metastatic melanoma, a highly lethal form of skin cancer, presents significant clinical challenges due to limited therapeutic options and high metastatic capacity. Recent studies have demonstrated that cancer dissemination can occur earlier, before the diagnosis of the primary tumor. The progress in understanding the kinetics of cancer dissemination is limited by the lack of animal models that accurately mimic disease progression. We have established a xenograft model of human melanoma that spontaneously metastasizes to lymph nodes and lungs. This model allows precise monitoring of melanoma progression and is suitable for the quantitative and qualitative analysis of circulating tumor cells (CTCs). We have validated a flow cytometry-based protocol for CTCs enumeration and isolation. We could demonstrate that (i) CTCs were detectable in the bloodstream from the fourth week after tumor initiation, coinciding with the lymph node metastases appearance, (ii) excision of the primary tumor accelerated the formation of metastases in lymph nodes and lungs as early as one-week post-surgery, accompanied by the increased numbers of CTCs, and (iii) CTCs change their surface protein signature. In summary, we present a model of human melanoma that can be effectively utilized for future drug efficacy studies.