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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1999-8-25
pubmed:abstractText
In this study we compared the metastatic rate of human renal cell carcinoma SN12C in two orthotopic nude mouse models: surgical orthotopic implantation (SOI) of histologically intact tumor tissue and cellular orthotopic injection (COI) of cell suspensions in the kidney. The primary tumors resulting from SOI were larger and much more locally invasive than primary tumors resulting from COI. SOI generated higher metastatic expression than COI. The differences in metastatic rates in the involved organs (lung, liver, and mediastinal lymph nodes) were 2-3 fold higher in SOI compared to COI (P < 0.05). Median survival time in the SOI model was 40 days, which was significantly shorter than that of COI (68 days) (P < 0.001). Histological observation of the primary tumors from the SOI model demonstrated a much richer vascular network than the COI model. Lymph node and lung metastases were larger and more cellular in the SOI model compared to COI. We conclude that the tissue architecture of the implanted tumor tissue in the SOI model plays an important role in the initiation of primary tumor growth, invasion, and distant metastasis. This study directly demonstrates that the implantation of histologically intact tumor tissue orthotopically allows accurate expression of the clinical features of human renal cancer in nude mice. This model should be of value in cancer research and antimetastatic drug discovery for renal cancer, a currently very poorly responding malignancy.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0262-0898
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
265-70
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:10432012-Adult, pubmed-meshheading:10432012-Animals, pubmed-meshheading:10432012-Carcinoma, Renal Cell, pubmed-meshheading:10432012-Cell Division, pubmed-meshheading:10432012-Cell Transplantation, pubmed-meshheading:10432012-Disease Models, Animal, pubmed-meshheading:10432012-Humans, pubmed-meshheading:10432012-Kidney Neoplasms, pubmed-meshheading:10432012-Liver Neoplasms, pubmed-meshheading:10432012-Lung Neoplasms, pubmed-meshheading:10432012-Lymphatic Metastasis, pubmed-meshheading:10432012-Male, pubmed-meshheading:10432012-Mice, pubmed-meshheading:10432012-Mice, Inbred BALB C, pubmed-meshheading:10432012-Mice, Nude, pubmed-meshheading:10432012-Neoplasm Metastasis, pubmed-meshheading:10432012-Neoplasm Transplantation, pubmed-meshheading:10432012-Subrenal Capsule Assay, pubmed-meshheading:10432012-Survival Rate
pubmed:year
1999
pubmed:articleTitle
Development of a high metastatic orthotopic model of human renal cell carcinoma in nude mice: benefits of fragment implantation compared to cell-suspension injection.
pubmed:affiliation
AntiCancer, Inc., San Diego, CA 92111, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.