NDLI: Heterogeneous expression of invasive and metastatic properties in a prostate tumor model

Content Provider	Springer Nature Link
Author	Luo, Jun Sharma, Navesh Seftor, Elisabeth A. Larco, Joseph De Heidger, Paul M. Hendrix, Mary J. C. Lubaroff, David M.
Copyright Year	1997
Abstract	Cellular heterogeneity of neoplasia is well demonstrated in the Dunning R-3327 rat prostate adenocarcinoma. In this study, we measured the differential expression of invasive and metastatic properties of this prostate model by cloning from a heterogeneous parental cell line. Four cell clones were derived and characterized by morphological studies, E-cadherin expression, and invasive and metastatic potential. Three of the clones (clones 5′A, 5′C, and 5′D) demonstrated a fibroblastic morphology and were anchored to the substrate by loose microvillous processes. The fourth clone (clone 5′B) grew in tight clusters and displayed many closely spaced microvilli, long overlapping cytoplasmic regions with well-defined junctional complexes. The parental line (R3327-5′) demonstrated a combination of both these growth patterns. E-cadherin expression was absent in clones 5′A, 5′C, and 5′D and very prominent in clone 5′B, when compared to the parental line. The absence of E-cadherin expression correlated with increased invasiveness, as measured in an in vitro invasion assay. Subcutaneous injections of clones 5′A, 5′C, and 5′D yielded lung metastases and no primary tumors at the site of inoculation while clone 5′B was tumorigenic and produced fewer lung metastases in vivo. These clones, therefore, provide a potential for studying a variety of molecules involved in prostate cancer invasion and metastasis, especially for the direct testing of the significance of E-cadherin expresssion in prostate cancer progression.
Starting Page	264
Ending Page	271
Page Count	8
File Format	PDF
ISSN	12194956
Journal	Pathology & Oncology Research
Volume Number	3
Issue Number	4
e-ISSN	15322807
Language	English
Publisher	Springer Netherlands
Publisher Date	1997-01-01
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	prostate cancer invasion metastasis E-cadherin heterogeneity Cancer Research Oncology Pathology Immunology Biomedicine general
Content Type	Text
Resource Type	Article
Subject	Cancer Research Pathology and Forensic Medicine Oncology

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