title: Tumor grafts derived from sarcoma patients retain tumor morphology, viability, and invasion potential and indicate disease outcomes in the chick chorioallantoic membrane model.
abstract: The chick chorioallantoic membrane (CAM) assay was used to evaluate whether xenotransplanted sarcomas retain the histological characteristics and functional behavior of the original tumors. Metabolically active tumor tissue, identified by dynamic-contrast MRI, from 28 patients with a bone or soft-tissue tumors was applied to the CAM. Angiogenesis and graft and host behaviors were evaluated. The essential features and immunohistochemical characteristics of the original tumors were maintained, illustrating the diversity of sarcomas. Graft viability was inversely related to patient survival, but longer follow-up and more patients are needed to relate tumor graft behavior to natural history. We conclude that the CAM assay is a potential prognostic and predictive preclinical xenograft model for tumors that are difficult to culture in vitro, such as sarcomas; therefore, the use of the CAM assay may facilitate personalized medicine.
authors: Department of Orthopaedic Surgery and Traumatology, Ghent University Hospital, De Pintelaan 185, B-9000 Ghent, Belgium. gwensys@hotmail.com
authors: Gwen
authors: G
authors: Sys
authors: Mieke
authors: M
authors: Van Bockstal
authors: Ramses
authors: R
authors: Forsyth
authors: Maurice
authors: M
authors: Balke
authors: Bart
authors: B
authors: Poffyn
authors: Dirk
authors: D
authors: Uyttendaele
authors: Marc
authors: M
authors: Bracke
authors: Olivier
authors: O
authors: De Wever
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D001859:Bone Neoplasms / Q000098:blood supply / Q000473:pathology*; D002642:Chick Embryo; D002648:Child; D049033:Chorioallantoic Membrane; D005260:Female; D006085:Graft Survival; D006801:Humans; D008297:Male; D008875:Middle Aged; D009389:Neovascularization, Pathologic; D012509:Sarcoma / Q000098:blood supply / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000098:blood supply / Q000473:pathology*; D023041:Xenograft Model Antitumor Assays / Q000379:methods*; D055815:Young Adult