AntiCancer, Inc., San Diego, CA, U.S.A.
Department of Surgery, University of California San Diego, San Diego, CA, U.S.A.
In Vivo. 2020 Nov-Dec;34(6):3225-3231. doi: 10.21873/invivo.12158.
BACKGROUND/AIM: A more realistic mouse model of bladder cancer is necessary to develop effective drugs for the disease. Tumor models enhanced by bright fluorescent-reporter genes to follow the disease in real-time would enhance the ability to accurately predict the efficacy of various therapeutics on this particularly-malignant human cancer.
A highly-fluorescent green fluorescent protein (GFP)-expressing bladder cancer model was orthotopically established in nude mice using the UM-UC-3 human bladder-cancer cell line (UM-UC-3-GFP). Fragments from a subcutaneous tumor of UM-UC-3-GFP were surgically implanted into the nude mouse bladder. Non-invasive and intra-vital fluorescence imaging was obtained with a simple imaging box.
The GFP-expressing orthotopic bladder tumor was imaged in real-time non-invasively as well as intra-vitally, with the two methods correlating at r=0.99.
This is the first non-invasive-fluorescence-imaging orthotopic model of bladder cancer and can be used for rapidly screening novel effective agents for this recalcitrant disease.
背景/目的:为了开发膀胱癌的有效药物,我们需要建立更逼真的膀胱癌小鼠模型。通过增强明亮的荧光报告基因来实时跟踪疾病的肿瘤模型,将提高准确预测各种治疗方法对这种特别恶性人类癌症疗效的能力。
使用人膀胱癌细胞系 UM-UC-3(UM-UC-3-GFP),通过将 GFP 表达的膀胱癌模型原位建立在裸鼠中。将 UM-UC-3-GFP 皮下肿瘤的片段通过手术植入裸鼠膀胱中。使用简单的成像盒获得非侵入性和活体荧光成像。
实时非侵入性和活体成像均可检测 GFP 表达的原位膀胱癌,两种方法的相关性 r=0.99。
这是首个非侵入性荧光成像的膀胱癌原位模型,可用于快速筛选这种难治性疾病的新型有效药物。