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Human prostate cancer heterotransplants： a review on this experimental model

Asian Journal of Andrology 2010年第4期12卷 509-518页

作者： Lluis A. Lopez-Barcons Stanley S. Scott Cancer Center Louisiana State University Health Sciences Center New Orleans LA 70112 USA

A common model used for preclinical research was in vitro human tumor cell culture. An alternative model was the direct implantation of a unique patient＇s tumor biopsy specimens into immunodeficient host mice. Published data from PubMed （http：//***） and Current Contents Connect databases （http：//***/ products_services/science/science_roducts/a-z/current_contents_connect） were reviewed. Prostate cancer （PCa） heterotransplantation was evaluated using histopathology, morphology, cell differentiation, DNA content, tumor marker expression, metastases, tumor kinetics, tumor take rate and tumor vasculature in the first tumor heterotransplant. The heterotransplanted tumor retained the biological properties of the original tumor, such as morphology, degree of differentiation, pathology, secretory activity, expression of tumor markers and human vasculature. Human PCa heterotransplants have considerable experimental advantages over cell culture following xenotransplantation.

关键词： cancer experimental model heterotransplant nude mice prostate xenotransplant

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Small-cell neuroendocrine carcinoma of the prostate： are heterotransplants a better experimental model？

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Asian Journal of Andrology 2010年第3期12卷 308-314,I0007页

作者： Lluis-A. Lopez-Barcons Stanley S. Scott Cancer Center Louisiana State University Health Sciences Center New Orleans LA 70112 USA

Small-cell neuroendocrine carcinoma of the prostate （SCNCP） is an uncommon type of prostate cancer. However, it is of clinical importance because it is one of the most aggressive tumors of the prostate with a very poor prognosis. There exist few artificially cultured tumor cell lines to study SCNCE Then, another approach to that study consists in the use of fresh tumor tissue obtained from patients and its heterotransplantation into host mice. The purpose of this review is to integrate data from more than 20 years of heterotransplantation research in the study of small-cell neuroendocrine carcinoma of the prostate （SCNCP）. Heterotransplantation has provided data regarding the histopathology, karyotype, DNA content, cell cycle frequency, tumor markers, androgen receptor expression, metastasis and take rate of this prostate disease. When possible, comparisons between original in situ specimens removed from patients and heterotransplanted tissue from host mice have been made. There are advantages, as well as limitations, that have been identified for SCNCP heterotransplants versus xenotransplantation of cultured cells. Overall, heterotransplanted tumors are better than conventional tumor xenografts at retaining tumor morphology, pathology, secretory activity and expression of tumor markers of the patient＇s original specimen. Furthermore, heterotransplanted tissue preserves the three-dimensional tumor architecture of the prostate to maintain critical stromal-epithelial cell interactions.

关键词： heterotransplant nude mice prostate small-cell neuroendocrine carcinoma xenotransplant

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Human benign prostatic hyperplasia heterotransplants as an experimental model

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Asian Journal of Andrology 2010年第2期12卷 157-163页

作者： Lluis-A Lopez-Barcons Stanley S Scott Cancer Center Louisiana State UniversityHealth Sciences CenterNew OrleansLA 70112USA

Benign prostatic hyperplasia is a nonmalignant adenomatous enlargement of the pefiurethral prostate gland. It is a common disease in older men. In addition to man,spontaneous benign prostatic hyperplasia occurs in chimpanzee and the dog. Alternatives to these spontaneous models are induced benign prostatic hyperplasia,xenografts and in vitro models. Xenografts may be induced by cells cultured in vitro or by the heterotransplantation of primary surgical specimens into immunosuppressed mice. The purpose of this review is to integrate data from more than 30 years of heterotransplantation research in the study of benign hyperplasia of the prostate. Heterotransplantation has provided data regarding the histopathology,morphology,tissue markers,androgen receptor expression,tissue kinetics,take rate and tissue vasculature for this prostate *** are advantages,as well as limitations,that have been identified for human prostate disease heterotransplants versus xenotransplantation of cultured ***,heterotransplanted tissue is better at retaining tissue morphology,pathology,secretory activity,expression of tissue markers and human vasculature of the patient＇s original specimen. Furthermore,heterotransplanted tissue preserves the three-dimensional tissular architecture of the prostate to maintain critical stromal-epithelial cell interactions.

关键词： benign prostatic hyperplasia heterotransplant nude mice prostate xenotransplant

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