Primary culture of microvascular endothelial cells from human benign prostatic hyperplasia. 2001

A Stachon, and T Schlüter, and M Köller, and H Weisser, and M Krieg
Institute of Clinical Chemistry, Transfusion, and Laboratory Medicine, University Clinic Bergmannsheil, Ruhr University of Bochum, Bochum, Germany. Axel.Stachon@ruhr-uni-bochum.de

BACKGROUND Prostate growth seems to be influenced by paracrine factors like IL-6 originating from the microvascular endothelium. Therefore, our efforts were focused on the primary culture and behavior of microvascular endothelial cells (HPEC) derived from tissue of human benign prostatic hyperplasia (BPH). Until now, the isolation and culture of HPEC from BPH have not been reported. METHODS BPH tissue was cut into small cubes and gently squeezed after incubation with dispase. HPEC were cultured from the resulting cell suspension after a stepwise selection by use of superparamagnetic beads coated with antibodies against endothelial specific antigens. HPEC were characterized by flow cytometry and immunohistochemistry. gamma-Glutamyl transpeptidase activity (specific for microvascular endothelium) was measured after dissolution of the HPEC with Triton X-100. After the incubation of HPEC either with ATP, VEGF, or TNF-alpha, the release of IL-6 was measured by enzyme linked immunosorbent assay (ELISA). RESULTS HPEC showed a typical endothelial morphology. They were positive for von Willebrand factor, CD31, CD62E (after stimulation with TNF-alpha), alpha-actin and were negative for fibroblastic antigens and PSA. Proliferation was stimulated by vascular endothelial growth factor (VEGF). gamma-Glutamyl transpeptidase activity in HPEC was 6.3 microIU/microg protein, whereas in human umbilical vein endothelial cells (HUVEC) no gamma-glutamyl transpeptidase activity was detectable. The IL-6 secretion of HPEC was stimulated by VEGF and TNF-alpha, but not by ATP and bradykinin. CONCLUSIONS For the first time, the primary culture of microvascular endothelial cells from BPH tissue was successfully performed. Our results suggest that HPEC may be actively involved in prostate growth, due to the secretion of regulatory factors such as IL-6.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008222 Lymphokines Soluble protein factors generated by activated lymphocytes that affect other cells, primarily those involved in cellular immunity. Lymphocyte Mediators,Mediators, Lymphocyte
D008297 Male Males
D008833 Microcirculation The circulation of the BLOOD through the MICROVASCULAR NETWORK. Microvascular Blood Flow,Microvascular Circulation,Blood Flow, Microvascular,Circulation, Microvascular,Flow, Microvascular Blood,Microvascular Blood Flows,Microvascular Circulations
D011470 Prostatic Hyperplasia Increase in constituent cells in the PROSTATE, leading to enlargement of the organ (hypertrophy) and adverse impact on the lower urinary tract function. This can be caused by increased rate of cell proliferation, reduced rate of cell death, or both. Adenoma, Prostatic,Benign Prostatic Hyperplasia,Prostatic Adenoma,Prostatic Hyperplasia, Benign,Prostatic Hypertrophy,Prostatic Hypertrophy, Benign,Adenomas, Prostatic,Benign Prostatic Hyperplasias,Benign Prostatic Hypertrophy,Hyperplasia, Benign Prostatic,Hyperplasia, Prostatic,Hyperplasias, Benign Prostatic,Hypertrophies, Prostatic,Hypertrophy, Benign Prostatic,Hypertrophy, Prostatic,Prostatic Adenomas,Prostatic Hyperplasias, Benign,Prostatic Hypertrophies
D004727 Endothelium A layer of epithelium that lines the heart, blood vessels (ENDOTHELIUM, VASCULAR), lymph vessels (ENDOTHELIUM, LYMPHATIC), and the serous cavities of the body. Endotheliums
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014409 Tumor Necrosis Factor-alpha Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS. Cachectin,TNF-alpha,Tumor Necrosis Factor Ligand Superfamily Member 2,Cachectin-Tumor Necrosis Factor,TNF Superfamily, Member 2,TNFalpha,Tumor Necrosis Factor,Cachectin Tumor Necrosis Factor,Tumor Necrosis Factor alpha
D015850 Interleukin-6 A cytokine that stimulates the growth and differentiation of B-LYMPHOCYTES and is also a growth factor for HYBRIDOMAS and plasmacytomas. It is produced by many different cells including T-LYMPHOCYTES; MONOCYTES; and FIBROBLASTS. Hepatocyte-Stimulating Factor,Hybridoma Growth Factor,IL-6,MGI-2,Myeloid Differentiation-Inducing Protein,Plasmacytoma Growth Factor,B Cell Stimulatory Factor-2,B-Cell Differentiation Factor,B-Cell Differentiation Factor-2,B-Cell Stimulatory Factor 2,B-Cell Stimulatory Factor-2,BSF-2,Differentiation Factor, B-Cell,Differentiation Factor-2, B-Cell,IFN-beta 2,IL6,Interferon beta-2,B Cell Differentiation Factor,B Cell Differentiation Factor 2,B Cell Stimulatory Factor 2,Differentiation Factor 2, B Cell,Differentiation Factor, B Cell,Differentiation-Inducing Protein, Myeloid,Growth Factor, Hybridoma,Growth Factor, Plasmacytoma,Hepatocyte Stimulating Factor,Interferon beta 2,Interleukin 6,Myeloid Differentiation Inducing Protein,beta-2, Interferon
D016228 Endothelial Growth Factors These growth factors are soluble mitogens secreted by a variety of organs. The factors are a mixture of two single chain polypeptides which have affinity to heparin. Their molecular weight are organ and species dependent. They have mitogenic and chemotactic effects and can stimulate endothelial cells to grow and synthesize DNA. The factors are related to both the basic and acidic FIBROBLAST GROWTH FACTORS but have different amino acid sequences. Endothelial Cell-Derived Growth Factors,alpha-Endothelial Growth Factor,beta-Endothelial Growth Factor,ECDGF,Endo-GF,Endothelial Growth Factor,Endothelial Growth Factor Polypeptides,Endothelial Cell Derived Growth Factors,Growth Factor, Endothelial,Growth Factor, alpha-Endothelial,Growth Factor, beta-Endothelial,Growth Factors, Endothelial,alpha Endothelial Growth Factor,beta Endothelial Growth Factor

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