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4 results on '"G.J. Fleuren"'

1. Application of Monoclonal Antibodies in Tumor Pathology

Author

Dirk J. Ruiter, G.J. Fleuren, S.O. Warnaar, Dirk J. Ruiter, G.J. Fleuren, and S.O. Warnaar

Subjects
Cancer--Diagnosis--Congresses, Monoclonal antibodies--Diagnostic use--Congres, Tumor antigens--Analysis--Congresses, Immunodiagnosis--Congresses, Immunohistochemistry--Congresses, Antibodies, Monoclonal--congresses, Antigen--Antibody Reactions--congresses, Neoplasms--immunology--congresses
Abstract

The development of monoclonal antibodies to human tumor associated antigens has greatly facilitated the application of immunohistochemical techniques to analyze surgically removed tissues. During the last few years this approach has been utilized by a progressively increasing number of investigators to analyze malignant cells. Although monoclonal antibodies to tumor associated antigens have not become yet routine reagents in immunopathology, they have provided new information which could not be obtained with conventional antisera or histochemical procedures. The following are representative examples. TUmor associated antigens have been identified which display a restricted distribution in normal tissues and therefore may represent useful markers for radio­ imaging and appropriate targets for immunotherapy. In spite of undetec­ table differences with conventional histopathological approaches hetero­ geneity has been found in the antigenic profile of tumor cells within a lesion, in autologous lesions removed from different anatomic sites from a given patient and in lesions removed from different patients. Phenotypes of tumor cells have been identified which correlate with the biology of tumor cells and with the clinical course of the disease. From a practical view point the use of monoclonal antibodies in immunopathology has enhanced interactions between pathologists and immunologists, as exemplified by the present book. Such interactions have contributed to the application of basic research to clinical problems. The chapter of this book discuss investigations performed with monoclonal antibodies to antigens expressed by various types of normal and malignant human cells.

Published
2012

2. Expression of P-glycoprotein in relation to clinical manifestation, treatment and prognosis of adrenocortical cancer

Author

Harm R. Haak, A. P. van Seters, G.J. Fleuren, and A. J. Moolenaar

Subjects
Male, Cancer Research, medicine.medical_specialty, Pathology, medicine.medical_treatment, Clinical manifestation, Disease, Gastroenterology, Steroid, Internal medicine, medicine, Adrenocortical carcinoma, Humans, Mitotane, ATP Binding Cassette Transporter, Subfamily B, Member 1, P-glycoprotein, Membrane Glycoproteins, biology, Adrenal cortex, business.industry, medicine.disease, Prognosis, Adrenal Cortex Neoplasms, Neoplasm Proteins, Multiple drug resistance, medicine.anatomical_structure, Oncology, biology.protein, Female, business, Carrier Proteins, medicine.drug
Abstract

The presence of P-glycoprotein, associated with multiple drug resistance and present in the normal adrenal cortex, was studied in 15 cases of adrenocortical carcinoma. P-glycoprotein was found in eight tumours; no correlation was found with clinical presentation, steroid production or histological index. 10 patients received mitotane. Remarkably, 3 patients with P-glycoprotein-positive tumours achieved complete remission. On the other hand, 2 patients with P-glycoprotein-negative tumours showed progression of the disease despite mitotane treatment. These findings suggest that the expression of P-glycoprotein in adrenocortical carcinoma is not related to clinical manifestations, steroid production, histological index or response to mitotane therapy.

Published
1993

3. Contents, Vol. 3, 1980

Author

Jacques Chanard, Anton Szymanowicz, Kazuaki Yamada, Sarwan S. Kang, Eileen F. Smith, Gerard M. Turino, J. Rakotoarivony, Kenji Iesato, P.L. Oe, E. Maxa, Nishio Honda, J.M. Foidart, Jose R. Manaligod, G. D’Amico, A. Bellini, L.A.M. Stolte, P. Bardos, J.A. Velosa, Hans Jørgen G. Gundersen, Barbara A. McKenna, Farhad Khalil-Manesh, Wesley Fox, L. van Delden, M. Sternberg, G.J. Fleuren, W.A. Day, A.R. McGiven, L.H. Noel, L.O. Simpson, Tito Cavallo, Philippe Birembaut, Jean-Pierre Brunois, Dick Heinegård, Friedrich C. Luft, Thomas W. Huang, Paul D. Benya, Billy G. Hudson, S.-L. Ou, Ruth Østerby, Cristina Kenney, Eric Sanders, R.J. Winand, Raymond C. Duhamel, Arnold Pollak, J.H. Veerkamp, Kunio Okuda, K. Hempel, Edward C. Carlson, J. Yudkin, J.M. Suc, Rytter Nørgaard, J.R. Rüttner, Wilhelm Kriz, Sarah A. Taylor, Michael F. Bryson, Jared J. Grantham, Harro Buss, H.E. Abboud, J. Goldman, T. Heck, R.G. Spiro, G. Sperk, Peter Schneider, Godfrey Heathcote, J.C. Orfila, O.T. Uttendorfsky, Gareth J. Thomas, James L. Borke, Harold C. Slavkin, S.V. Shah, I. Molenaar, R. Habib, Paul Jacques Borel, W. Schurer, C.F. Lange, M. Levy, Rajinder P. Nayyar, Kelvin T. Hughes, D. Droz, E.C.M. Ooms, L.A.H. Monnens, G. Rauscher, Jörgen Wieslander, C. Dubois, N.W. Levin, H.U. Lange, G. Goffinet, Teruo Mori, Kjartan Seyer-Hansen, Michael E. Grant, K.H. Winterhalter, F. Dumler, Will W. Minuth, Earl P. Benditt, B.F. Odermatt, Masafumi Wakashin, Frederick I. Volini, Günter Hollweg, Richard D. Spall, P.R. Macdonald, Olivier Toupance, C. Dechenne, A.P. Evan, J.P.M. Langeveld, Eiich Matsuo, G. Lubec, Cecil A. Krakower, Barry S. Oemar, H. Takamiya, Rufino C. Pabico, Elias Meezan, S. Batsford, J. Leibowitch, Gerald A. Coles, P. Graaff, G. Simbruner, Gert Lubec, W. Romen, C. Naizot, Yasumasa Takaya, A. Pollak, Bonnie Anderson Bray, Shiro Ueda, G. Colasanti, A.P. Sahu, Ines Mandl, F.C. Luft, Malcolm Davies, Bernard J. Partner, P. Mahieu, A. Vogt, T.P. Dousa, Yoko Wakashin, J. Moran, Andrew P. Evan, P. Cortes, P.J. Hoedemaeker, Tadashi Ofuji, M. Spiess, J.B. Foidart, Sadia Muhammed, Per Gygren, Yoshio Mori, K.K. Venkatachalam, Mistumasa Nagase, Zensuke Ota, Izumi Takei, Y.S. Pirard, Ole Gøtzsche, B. Nabarra, J.P. Muh, E. Ratzenhofer, H. Coradello, Anne E. Jackson, Anna G. Brownell, Hirofumi Makino, O. Förster, P. Freychet, J.S. Hunt, M.C. Gubler, P.R. Mahieu, B.H. Spargo, Ralph J. Butkowski, E. Meezan, B. Trüeb, Klaus Brendel, T. Oite, and Robert G. Price

Subjects
Nephrology, General Medicine, Cardiology and Cardiovascular Medicine
Published
1980

4. A model for the glomerular filter

Author

P.J. Hoedemaeker, I. Molenaar, G.J. Fleuren, and W. Schurer

Subjects
Basement membrane, Chemical Phenomena, Fibrillar collagen, Chemistry, Macromolecular Substances, Glomerular basement membrane, Kidney Glomerulus, Membrane Proteins, Ultrafiltration, General Medicine, Models, Biological, Basement Membrane, Epithelium, medicine.anatomical_structure, Nephrology, Filter (video), medicine, Biophysics, Animals, Humans, Collagen, Cardiology and Cardiovascular Medicine, Procollagen
Abstract

The model for the glomerular filter presented here is based on the relationship between basement membrane collagen and fibrillar collagen. The glomerular basement membrane collagen is produced by the epithelial cell and present on its surface in a staggered organization as in fibrillar collagen. Binding and aggregation of the collagen molecules with a matrix protein results in a large ( ± 50 nm) meshwork controlled by collagen molecules and bound to the cell surface. Because the matrix proteins bind GAGs, the aggregates are recognizable as anionic sites. A continued production of glomerular basement membrane material will cause a movement towards the endothelial side accompanied with a degradation. This degradation results in a loss of carbohydrates, digesting of α-molecules in the triple helices and a loss of anionic sites. The loss of carbohydrates leads to cross-linking and narrowing of the meshes in the direction of the endothelial side of the GBM. Final digestion results in fragmented helices which will pass the GBM and probably be reabsorbed by the epithelial cells or which will pass the slit diaphragm. The slit diaphragm, a staggered collagen structure in plane, functions as a bridge between the epithelial foot processes and is able to regulate the flow and pressure.

Published
1980

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