VEGFA and neoplasm: Although metastases were not found in the donor GC patient (TNM Staging II, T3N1M0) by the time when surgical resection was performed, the tumor did metastasize in the PDX model GA0087, suggesting that additional host factors prior to tumor resection in patients, including CTC subtype status and/or VEGF-A expression, etc. could be the more significant “predictor” with respect to establishing a metastatic PDX (mPDX) model.