Feder, Anna-Lena and Pion, Eric and Troebs, Johannes and Lenze, Ulrich and Prantl, Lukas and Htwe, Maung Mg and Phyo, Aung and Haerteis, Silke and Aung, Thiha (2020) Extended analysis of intratumoral heterogeneity of primary osteosarcoma tissue using 3D-in-vivo-tumor-model. CLINICAL HEMORHEOLOGY AND MICROCIRCULATION, 76 (2). pp. 133-141. ISSN 1386-0291, 1875-8622
Full text not available from this repository. (Request a copy)Abstract
BACKGROUND: Osteosarcomas are a rare, heterogeneous and malignant group of bone tumors that have a high potential for metastasis and aggressive growth patterns. Treatment of metastasized osteosarcoma is often insufficient and research is compromised by problems encountered when culturing cells or analyzing genetic alterations due to the high level of intratumoral and intertumoral heterogeneity. The chick chorioallantoic membrane (CAM) model, a 3D-in-vivo-tumor-model, could potentially facilitate the investigation of osteosarcoma heterogeneity at an individual and highly specified level. OBJECTIVE: Objective was to establish the grafting and transplantation of different primary osteosarcoma tissue parts onto several consecutive CAMs for tumor profiling and investigation of osteosarcoma heterogeneity. METHODS: Various parts of primary osteosarcoma tissue were grafted onto CAMs and were transplanted onto another CAM for five to seven consecutive times, enabling further experimental analyzes. RESULTS: Primary osteosarcoma tissue parts exhibited satisfactory growth patterns and displayed angiogenic development on the CAM. It was possible to graft and transplant different tumor parts several times while the tissue viability was still high and tumor profiling was performed. CONCLUSIONS: Primary osteosarcoma tissue grew on several different CAMs for an extended time period and neovascularization of serial transplanted tumor parts was observed, improving the versatility of the 3D-in-vivo-tumor-model.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CHICK CHORIOALLANTOIC MEMBRANE; ANGIOGENESIS; SURVIVAL; OUTCOMES; SARCOMA; EMBRYO; MODEL; Osteosarcoma; sarcoma; cancer; tumor heterogeneity; intratumoral heterogeneity; CAM model; 3D-in-vivo-tumor-model |
| Subjects: | 500 Science > 570 Life sciences 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Plastische-, Hand- und Wiederherstellungschirurgie Biology, Preclinical Medicine > Institut für Anatomie Biology, Preclinical Medicine > Institut für Anatomie > Lehrstuhl für Molekulare und zelluläre Anatomie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Apr 2021 08:49 |
| Last Modified: | 06 Apr 2021 08:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/45398 |
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