ArticleTranslational cancer research2021
Comparison of tumor angiogenesis in subcutaneous and orthotopic LNCaP mouse models using contrast-enhanced ultrasound imaging.
Article in Translational cancer research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- A Preliminary Evaluation ofPharmaceutics · 2026Article
- Inhibition of nuclear import suppresses androgen receptor action and overcomes resistance in prostate cancer.BMC cancer · 2026Article
- Biomimetic Tumour Model Systems for Pancreatic Ductal Adenocarcinoma in Relation to Photodynamic Therapy.International journal of molecular sciences · 2025Review
- Denfivontinib Activates Effector T Cells Through the NLRP3 Inflammasome, Yielding Potent Anticancer Effects by Combination with Pembrolizumab.Molecular cancer therapeutics · 2025Article
- Efficient ultrasound-mediated drug delivery to orthotopic liver tumors - Direct comparison of doxorubicin-loaded nanobubbles and microbubbles.Journal of controlled release : official journal of the Controlled Release Society · 2024Article
- A Comparative Analysis of Orthotopic and Subcutaneous Pancreatic Tumour Models: Tumour Microenvironment and Drug Delivery.Cancers · 2023Article
- Efficient ultrasound-mediated drug delivery to orthotopic liver tumors - Direct comparison of doxorubicin-loaded nanobubbles and microbubbles.bioRxiv : the preprint server for biology · 2023Article
- Fisheye piezo polymer detector for scanning optoacoustic angiography of experimental neoplasms.Photoacoustics · 2023Article
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5 authors.
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Abstract
backgroundUnderstanding angiogenesis in prostate cancer is essential. LNCaP prostate xenograft tumors are androgen responsive and closely mimic clinical disease. Orthotopic animal models replicate aspects of the cancer microenvironment and are more clinically relevant than subcutaneous models. Comparative studies investigating angiogenesis using contrast-enhanced ultrasound (CEUS) imaging in subcutaneous and orthotopic mouse models of prostate cancer have not been performed.
methodsTumor microcirculation and perfusion in subcutaneous and orthotopic LNCaP xenograft Balb/c athymic nude mice models were compared by investigating microbubble wash-in with CEUS.
resultsThe take rate of subcutaneous and orthotopic tumors were 58.3% and 68.2%, respectively. On CEUS, orthotopic prostate tumors enhanced more rapidly than subcutaneous tumors. Mean arrival-time (Atm) for subcutaneous tumors, orthotopic prostate tumors, and kidney were 4.21±1.86, 1.72±0.79, and 0.73±0.12 s, respectively. Mean Atm was significantly longer for subcutaneous tumors compared to orthotopic prostate tumors or kidney (P<0.01). Mean time to peak enhancement (TtoPk) for subcutaneous tumors, orthotopic prostate tumors, and kidney were 38.56±13.23, 12.39±7.17, and 3.74±1.41 s, respectively. Mean TtoPk were significantly shorter for orthotopic prostate tumors and kidney compared to subcutaneous tumors (P<0.01). Mean wash-in area under the curve (WiAuC) for subcutaneous tumors, orthotopic prostate tumors, and kidney were 611.11±247.52, 1,800.57±623.11, and 1,887.51±103.68 dB, respectively. Mean AUC was significantly higher for orthotopic prostate tumors and kidney compared to subcutaneous tumors (P<0.01). Parametric imaging confirmed these findings. The density of CD31-positive vessels was significantly higher in orthotopic prostate tumors (43.98±6.14 vessels/field) compared to subcutaneous tumors (15.44±3.74 vessels/field, P<0.01).
conclusionsThese findings demonstrate that orthotopic LNCaP xenografts better recreate a pro-angiogenic microenvironment than subcutaneous LNCaP xenografts.
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