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Gille AS, Givelet M, Pehlic D, Lapoujade C, Lassalle B, Barroca V, Bemelmans AP, Borderie D, Moison D, Livera G, Gauthier LR, Boussin FD, Thiounn N, Allemand I, Peyssonnaux C, Wolf JP, Barraud-Lange V, Riou L, Fouchet P. Impact of the hypoxic microenvironment on spermatogonial stem cells in culture. Front Cell Dev Biol 2024; 11:1293068. [PMID: 38304612 PMCID: PMC10830753 DOI: 10.3389/fcell.2023.1293068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/21/2023] [Indexed: 02/03/2024] Open
Abstract
The stem cell niche plays a crucial role in the decision to either self-renew or differentiate. Recent observations lead to the hypothesis that O2 supply by blood and local O2 tension could be key components of the testicular niche of spermatogonial stem cells (SSCs). In this study, we investigated the impact of different hypoxic conditions (3.5%, 1%, and 0.1% O2 tension) on murine and human SSCs in culture. We observed a deleterious effect of severe hypoxia (1% O2 and 0.1% O2) on the capacity of murine SSCs to form germ cell clusters when plated at low density. Severe effects on SSCs proliferation occur at an O2 tension ≤1% and hypoxia was shown to induce a slight differentiation bias under 1% and 0.1% O2 conditions. Exposure to hypoxia did not appear to change the mitochondrial mass and the potential of membrane of mitochondria in SSCs, but induced the generation of mitochondrial ROS at 3.5% and 1% O2. In 3.5% O2 conditions, the capacity of SSCs to form colonies was maintained at the level of 21% O2 at low cell density, but it was impossible to amplify and maintain stem cell number in high cell density culture. In addition, we observed that 3.5% hypoxia did not improve the maintenance and propagation of human SSCs. Finally, our data tend to show that the transcription factors HIF-1α and HIF-2α are not involved in the SSCs cell autonomous response to hypoxia.
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Affiliation(s)
- A. S. Gille
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Département de Génétique, Développement et Cancer. Team from Gametes to Birth, Institut Cochin, INSERM U1016, Paris, France
- Université Paris Cité, CNRS, INSERM, Institut Cochin, Paris, France
| | - M. Givelet
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Département de Génétique, Développement et Cancer. Team from Gametes to Birth, Institut Cochin, INSERM U1016, Paris, France
- Université Paris Cité, CNRS, INSERM, Institut Cochin, Paris, France
| | - D. Pehlic
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - C. Lapoujade
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - B. Lassalle
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - V. Barroca
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - A. P. Bemelmans
- CEA, IBFJ, Molecular Imaging Research Center (MIRCen), CNRS, Université Paris-Saclay, Fontenay-aux-Roses, France
| | - D. Borderie
- Université Paris Cité, Inserm, T3S, Paris, France
- Department of Biochemistry AP-HP, Cochin Hospital, Paris, France
| | - D. Moison
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - G. Livera
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - L. R. Gauthier
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - F. D. Boussin
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - N. Thiounn
- Université de Paris Cité, Service d’Urologie, Centre Hospitalier Georges Pompidou, Assistance Publique - Hôpitaux de Paris Centre, Paris, France
| | - I. Allemand
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - C. Peyssonnaux
- Université Paris Cité, CNRS, INSERM, Institut Cochin, Paris, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - J. P. Wolf
- Département de Génétique, Développement et Cancer. Team from Gametes to Birth, Institut Cochin, INSERM U1016, Paris, France
- Université Paris Cité, CNRS, INSERM, Institut Cochin, Paris, France
| | - V. Barraud-Lange
- Département de Génétique, Développement et Cancer. Team from Gametes to Birth, Institut Cochin, INSERM U1016, Paris, France
- Université Paris Cité, CNRS, INSERM, Institut Cochin, Paris, France
| | - L. Riou
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
| | - P. Fouchet
- Université Paris Cité, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
- Université Paris-Saclay, INSERM, CEA, Stabilité Génétique Cellules Souches et Radiations, Fontenay-aux-Roses, France
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Timsit MO, Terrier N, Toinet T, Dariane C, Debedde E, Panthier F, Thiounn N, Audenet F, Méjean A. Posterior transperitoneal robot-assisted partial nephrectomy in the treatment of renal tumors: Feasibility of a hybrid approach. Prog Urol 2022; 32:217-225. [DOI: 10.1016/j.purol.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/01/2022] [Accepted: 01/10/2022] [Indexed: 10/19/2022]
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Besombes T, Plassais C, Thiounn N, Dariane C, Timsit M, Mejean A, Audenet F. Faut-il fixer les prothèses testiculaires ? Enquête de satisfaction dans une cohorte de patients opérés. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Cosset JM, Belin L, Wakil G, Flam T, Thiounn N, Pierrat N, Pontvert D, Savignoni A, Chauveinc L. Second malignancies after permanent implant prostate cancer brachytherapy: A single-institution study of 675 patients treated between 1999 and 2003. Cancer Radiother 2017; 21:210-215. [PMID: 28499661 DOI: 10.1016/j.canrad.2017.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/16/2017] [Accepted: 02/23/2017] [Indexed: 11/29/2022]
Abstract
PURPOSE To analyse the rate of secondary malignancies observed in a series of 675 prostate cancer patients who underwent a permanent implant brachytherapy between 1999 and 2003, and to compare the incidence with the expected rate in a matched general French population. MATERIAL AND METHODS The cohort included low-risk patients and a selection of "favourable-intermediate" risk patients. All patients were homogeneously treated using an intraoperative dynamic planning prostate brachytherapy technique, with loose 125-iodine seeds and a prescription dose of 145Gy. The mean follow-up was 132 months. RESULTS The 10-year overall survival for the entire cohort was 92% (95% confidence interval [CI]: 90-94). The 10-year relapse-free survival rate was 82% (95% CI: 79-85). Overall, 61 second cancers were registered. When comparing with a matched general French population, the standard incidence ratio (SIR) for bladder cancer was 1.02 (95% CI: 0.46-1.93). For colorectal cancer, the SIR was 0.45 (95% CI: 0.19-0.89). For lung cancer, the SIR was 0.38 (95% CI: 0.17-0.76). The SIR for all cancers was 0.61 (95% CI: 0.47-0.79). When excluding secondary colorectal and lung cancers (both with low SIRs in this series), the SIR for all cancers was 1.06 (95% CI: 0.77-1.29). CONCLUSION With a mean follow-up of more than 11 years, this series does not detect any excess risk of second cancers associated with permanent implant prostate brachytherapy. However, due to power limitation, a small increase in the risk of secondary malignancies cannot be totally ruled out.
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Affiliation(s)
- J-M Cosset
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France; Centre Charlebourg-La Défense, groupe Amethyst, 92250 La Garenne-Colombes, France.
| | - L Belin
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - G Wakil
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France; Charles Lemoyne hospital, 3120, boulevard Taschereau, Greenfield Park, J4V 2H1 Montréal, QC, Canada
| | - T Flam
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France; Fondation Saint-Jean-de-Dieu-Oudinot, 19, rue Oudinot, 75007 Paris, France
| | - N Thiounn
- Hôpital européen Georges-Pompidou, 20, rue Leblanc, 75015 Paris, France
| | - N Pierrat
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - D Pontvert
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - A Savignoni
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - L Chauveinc
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France; Centre de radiothérapie Hartmann, 4, rue Kléber, 93200 Levallois-Perret, France
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Cosset JM, Flam T, Belin L, Thiounn N, Pierrat N, Pontvert D, Wakil G, Savignoni A, Chauveinc L. Long-term results of permanent implant prostate cancer brachytherapy: A single-institution study of 675 patients treated between 1999 and 2003. Cancer Radiother 2016; 20:261-7. [DOI: 10.1016/j.canrad.2016.02.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 02/01/2016] [Accepted: 02/05/2016] [Indexed: 10/21/2022]
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Cholley I, Correas J, Sanchez S, Ariane M, Fontaine E, Thiounn N, Hurel S, Le Guilchet T, Champy C, Audenet F, Pietak M, Méjean A, Timsit M. Comparaison de la chirurgie conservatrice vs ablation par radiofréquence pour le traitement du carcinome à cellules rénales après 75ans. Prog Urol 2015; 25:827-8. [DOI: 10.1016/j.purol.2015.08.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Salama S, Boitrelle F, Gauquelin A, Lesaffre C, Thiounn N, Desvaux P. [Squirting and female ejaculation in 2015?]. Gynecol Obstet Fertil 2015; 43:449-452. [PMID: 26004023 DOI: 10.1016/j.gyobfe.2015.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 04/20/2015] [Indexed: 06/04/2023]
Abstract
Since Antiquity, women who expulse a large quantity of liquid during sexual stimulation have remained a mystery. This phenomena is usually called "squirting". Many physicians have proposed different explications, however, there are very few scientific publications and their conclusions are discordant. Today, squirting is fashionable in the media, and some recent studies have brought new information. Through medical publications, we present the conclusions concerning the origin and the nature of squirting, the psychological experience of these squirting women and the feelings of their partners.
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Affiliation(s)
- S Salama
- Service de gynécologie et obstétrique, hôpital privé de Parly 2, 78150 Le Chesnay, France; AIUS (Association inter-disciplinaire post-universitaire de sexologie), 34470 Pérols, France.
| | - F Boitrelle
- Laboratoire de biologie de la reproduction, centre hospitalier inter-communal de Poissy-St-Germain, 78303 Poissy, France
| | - A Gauquelin
- Service de gynécologie et obstétrique, centre hospitalier inter-communal de Poissy-St-Germain, 78303 Poissy, France
| | - C Lesaffre
- Cabinet psychologue, 28/2, rue du Brun-Pain, 59200 Tourcoing, France
| | - N Thiounn
- AIUS (Association inter-disciplinaire post-universitaire de sexologie), 34470 Pérols, France; Service d'urologie de l'hôpital européen G.-Pompidou, 75015 Paris, France
| | - P Desvaux
- AIUS (Association inter-disciplinaire post-universitaire de sexologie), 34470 Pérols, France; Service d'urologie, hôpital Cochin, 75014 Paris, France
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8
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Tselikas L, Pellerin O, Di Primio M, Ben Arfi M, Joskin J, Beyssen B, Thiounn N, Sapoval M. Uretero-iliac fistula: Modern treatment via the endovascular route. Diagn Interv Imaging 2013; 94:311-8. [DOI: 10.1016/j.diii.2012.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Eiss D, Cornud F, Thiounn N, Wolf JP, Amar E, Ghouadni M, Hélénon O. Imagerie de l’hypofertilité masculine : technique et résultats. ACTA ACUST UNITED AC 2012; 40:481-9. [DOI: 10.1016/j.gyobfe.2012.07.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 07/05/2012] [Indexed: 10/28/2022]
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10
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Yassa M, Saliou M, De Rycke Y, Hemery C, Henni M, Bachaud J, Thiounn N, Cosset J, Giraud P. Male pattern baldness and the risk of prostate cancer. Ann Oncol 2011; 22:1824-7. [DOI: 10.1093/annonc/mdq695] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ganor Y, Zhou Z, Tudor D, Schmitt A, Vacher-Lavenu MC, Gibault L, Thiounn N, Tomasini J, Wolf JP, Bomsel M. Within 1 h, HIV-1 uses viral synapses to enter efficiently the inner, but not outer, foreskin mucosa and engages Langerhans-T cell conjugates. Mucosal Immunol 2010; 3:506-22. [PMID: 20571487 DOI: 10.1038/mi.2010.32] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Although circumcision reduces male acquisition of human immunodeficiency virus type-1 (HIV-1) by 60%, the initial mechanisms of HIV-1 transmission at the foreskin remain elusive. We have established two novel and complementary models of the human adult foreskin epithelium, namely, ex vivo foreskin explants and in vitro reconstructed immunocompetent foreskins. In these models, efficient HIV-1 transmission occurs after 1 h of polarized exposure of the inner, but not outer, foreskin to mononuclear cells highly infected with HIV-1, but not to cell-free virus. HIV-1-infected cells form viral synapses with apical foreskin keratinocytes, leading to polarized budding of HIV-1, which is rapidly internalized by Langerhans cells (LCs) in the inner foreskin. In turn, LCs migrate toward the epidermis-dermis interface to form conjugates with T cells, thereby transferring HIV-1. Seminal plasma mixed with cervicovaginal secretions inhibits HIV-1 translocation. This set of results rationalizes at the cellular level the apparent protective outcome of circumcision against HIV-1 acquisition by men.
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Affiliation(s)
- Y Ganor
- Mucosal Entry of HIV-1 and Mucosal Immunity, Cell Biology and Host Pathogen Interactions Department, Cochin Institute, Université Paris Descartes, CNRS (UMR 8104), Paris, France
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Castro Pena P, Thiounn N, Hijal T, Flam T, Chauveinc L, Pierrat N, Pontvert D, Cosset J. Long-term Preservation of Sexual Potency after Permanent Implant Prostate Brachytherapy. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Ganor Y, Zhou Z, Schmitt A, Vacher-Lavenu M, Gibault L, Thiounn N, Tomasini J, Wolf J, Bomsel M. OA011-01. Early events of human immunodeficiency virus type 1 (HIV-1) ex vivo penetration in the foreskin mimicking HIV-1 sexual transmission. Retrovirology 2009. [PMCID: PMC2767578 DOI: 10.1186/1742-4690-6-s3-o7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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14
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Peña P, Thiounn N, Hijal T, Flam T, Chauveinc L, Pierrat N, Pontvert D, Cosset JM. Conservation à long terme des capacités sexuelles après curiethérapie de prostate par implants permanents. Cancer Radiother 2009. [DOI: 10.1016/j.canrad.2009.07.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rouach Y, Timsit MO, Lebret T, Fontaine E, Yonneau L, Herve JM, Botto H, Thiounn N, Mejean A. Impact de l’indication impérative sur la morbidité et les résultats carcinologiques à long terme après néphrectomie partielle. Prog Urol 2009; 19:481-6. [DOI: 10.1016/j.purol.2009.01.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2008] [Revised: 01/18/2009] [Accepted: 01/19/2009] [Indexed: 10/20/2022]
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16
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Cohen D, Timsit MO, Chrétien Y, Thiounn N, Vassiliu V, Mamzer MF, Legendre C, Méjean A. Place de la néphrectomie chez les patients atteints de polykystose rénale autosomique dominante de l’adulte en attente de transplantation rénale. Prog Urol 2008; 18:642-9. [PMID: 18971106 DOI: 10.1016/j.purol.2008.06.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2008] [Revised: 06/06/2008] [Accepted: 06/11/2008] [Indexed: 11/28/2022]
Affiliation(s)
- D Cohen
- Service d'urologie, hôpital Necker, 149, rue de Sèvres, 75743 Paris cedex 15, France.
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Cosset JM, Flam T, Thiounn N, Pontvert D, Pierrat N, Vallancien G, Chauveinc L. La curiethérapie du cancer prostatique par implants permanents. Cancer Radiother 2008; 12:503-11. [DOI: 10.1016/j.canrad.2008.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Rouach Y, Timsit MO, Delongchamps NB, Fontaine E, Peyromaure M, Thiounn N, Thibault P, Méjean A. Néphrectomie partielle laparoscopique : courbe d’apprentissage d’un interne en urologie sur un modèle porcin. Prog Urol 2008; 18:344-50. [DOI: 10.1016/j.purol.2008.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2007] [Accepted: 03/04/2008] [Indexed: 10/22/2022]
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Chauveinc L, Flam T, Thiounn N, Gomme S, Rosenwald JC, Asselain B, Pontvert D, Henni M, Debré B, Cosset JM. Curiethérapie deprostate parimplantation permanente: résultats àcinqans dugroupe Curie–Cochin–Necker. Cancer Radiother 2007. [DOI: 10.1016/j.canrad.2007.09.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cosset JM, Gomme S, Peiffert D, Guerif S, Labib A, Hannoun-Lévi JM, Martin P, Quétin P, Nguyen TD, Flam T, Thiounn N, Henni M, Rosenwald JC, Housset M, Pontvert D, Asselain B, Chauveinc L. Analyse clinique et dosimétrique de 469 patients traités en France en 2005 par implantation prostatique de grains d'iode 125 IsoSeed Bebig: rapport pour le Comité économique des produits de santé (CEPS). Cancer Radiother 2007; 11:206-13. [PMID: 17604675 DOI: 10.1016/j.canrad.2007.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2007] [Revised: 05/21/2007] [Accepted: 05/31/2007] [Indexed: 10/23/2022]
Abstract
A French decree of February 3rd 2005, allowed the Iodin 125 seeds from several companies to be reimbursed after a permanent implantation brachytherapy for a prostate cancer. Within this frame, the French "Comité économique des produits de santé" (CEPS; Economic committee for health products) made mandatory the annual writing and publication of a follow-up study with three main aims; make sure that the seeds were used for prostate cancer patients with criterias corresponding to the national recommendations, analyze the quality of the dosimetric data, and report all side effects, complications and possible accidents. We therefore report here a clinical and dosimetric analysis of 469 patient cases treated in France in nine centers in 2005 with the Iodin 125 IsoSeed Bebig. This analysis shows that: 1) The national recommendations for selecting patients for exclusive prostate brachytherapy have been taken into account in 97% of the cases; 2) The dosimetric quality criterias totally fulfilled the recommendations in a large majority of cases; the intra-operative D90 was found to be superior to 145 Gy in 98% of the patients, and the intra-operative V100 was superior to 95% in 96% of the cases; 3) The early toxicity (mainly urinary) was found to be at the lower range of what is reported in the literature, with in particular a retention rate of 2.4%.
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Affiliation(s)
- J-M Cosset
- Institut Curie, 26, rue d'Ulm, 75005 Paris, France.
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Toledano A, Chauveinc L, Flam T, Thiounn N, Solignac S, Timbert M, Rosenwald JC, Cosset JM. Influence sur les résultats des rebonds du PSA après curiethérapie de prostate: étude de 295 cas avec trois ans de suivi. Cancer Radiother 2007; 11:105-10. [PMID: 17158082 DOI: 10.1016/j.canrad.2006.10.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2006] [Revised: 10/12/2006] [Accepted: 10/19/2006] [Indexed: 11/18/2022]
Abstract
PURPOSE To assess the frequency of the PSA "bouncing" phenomenon after a significant follow-up in a series of patients treated by permanent implant brachytherapy for a prostate cancer. To look for the clinical and dosimetric parameters possibly linked to this transitory secondary PSA increase. To evaluate in which percentage of cases this bouncing could have mimicked a biochemical relapse according to the ASTRO consensus criteria. PATIENTS AND METHODS From January 1999, to December 2001, 295 patients were treated by a permanent prostate implantation (real-time technique, with free (125)I seeds- Isoseed Bebig-) by the Institut Curie-Hôpital Cochin-Hôpital Necker Paris group. The mean follow-up is 40.3 months (9-66 months). The PSA level was regularly checked, at least every 6 months. We defined as a "bouncing" all increase in PSA, starting at 0.1 ng/ml, subsequently followed by a spontaneous (without any treatment) decrease, with return to the previous level or lower. We particularly focused on the patients fulfilling the criteria for a biochemical relapse according to the ASTRO consensus (Three successive increases in PSA). A multivariate analysis tried to identify independent factors among the usual clinical and dosimetric parameters. RESULTS In our series, 161 patients (55%) showed a transitory PSA increase (bouncing) of at least 0.1 ng/ml; 145 patients (49%) a bouncing of 0.2 ng/ml, 93 patients (32%) a bouncing of 0.4 ng/ml and 43 patients (15%) a bouncing of at least 1 ng/ml. Mean PSA bounce was 0.8 ng/ml (0.1-4.1), and mean time to bounce was 19 months. Thirty-two patients (11% of the total number) presented three successive PSA increases with a significant (3 months) interval between the dosages, and therefore were to be considered as being in biochemical relapse according to the ASTRO consensus criteria. Actually, among those 32 patients, 18 (56%) subsequently showed a complete normalization of their PSA, without any treatment. Ten patients went on increasing their PSA, and were considered to be really in biochemical relapse. For the last 4 patients, the situation still remains ambiguous. In multivariate analysis, age<70 years (P<0.00001) and D90>200 Gy (P<0.003) were identified as independent factors for a PSA bouncing of at least 0.4 ng/ml. CONCLUSIONS The observed rate of 32% of patients showing a PSA bouncing of at least 0.4 ng/ml in our series is in good agreement with what has been previously reported in the literature. Age<70 years and D90>200 Gy were found to be independent factors predicting for such a secondary transitory increase in PSA. Interestingly, among 32 patients fulfilling the classical criteria of the ASTRO for a biochemical relapse, 18 (56%) subsequently showed a spontaneous PSA decrease, demonstrating that the ASTRO consensus is not well adapted to the biochemical follow-up of our patients undergoing permanent implant prostate Brachytherapy.
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Affiliation(s)
- A Toledano
- Service d'oncologie radiothérapie, hôpital Tenon, APHP, 4, rue de la Chine, 75020 Paris, France.
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Gad S, Lefèvre SH, Khoo SK, Giraud S, Vieillefond A, Vasiliu V, Ferlicot S, Molinié V, Denoux Y, Thiounn N, Chrétien Y, Méjean A, Zerbib M, Benoît G, Hervé JM, Allègre G, Bressac-de Paillerets B, Teh BT, Richard S. Mutations in BHD and TP53 genes, but not in HNF1beta gene, in a large series of sporadic chromophobe renal cell carcinoma. Br J Cancer 2006; 96:336-40. [PMID: 17133269 PMCID: PMC2360004 DOI: 10.1038/sj.bjc.6603492] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BHD, TP53, and HNF1β on chromosome 17 were studied in 92 cases of renal cell carcinoma (46 chromophobe, 19 clear cell, 18 oncocytoma, and nine papillary). Six, thirteen, and zero cases had, respectively BHD, TP53, and HNF1β mutations, (84% mutations involved chromophobe), suggesting a role for BHD and TP53 in chromophobe subtype.
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Affiliation(s)
- S Gad
- Génétique Oncologique EPHE, CNRS FRE-2939, Institut de Cancérologie Gustave Roussy, 94800 Villejuif, France
- Faculté de Médecine Paris-Sud, 94270 Le Kremlin-Bicêtre, France
| | - S H Lefèvre
- Génétique Oncologique EPHE, CNRS FRE-2939, Institut de Cancérologie Gustave Roussy, 94800 Villejuif, France
- Faculté de Médecine Paris-Sud, 94270 Le Kremlin-Bicêtre, France
| | - S K Khoo
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - S Giraud
- Laboratoire de Génétique, Hôpital Herriot, 69003 Lyon, France
| | - A Vieillefond
- Laboratoire d'Anatomie Pathologique, Hôpital Cochin, AP-HP, 75014 Paris, France
| | - V Vasiliu
- Laboratoire d'Anatomie Pathologique, Hôpital Necker, AP-HP, 75015 Paris, France
| | - S Ferlicot
- Laboratoire d'Anatomie Pathologique, Hôpital de Bicêtre, AP-HP, 94270 Le Kremlin-Bicêtre, France
| | - V Molinié
- Laboratoire d'Anatomie Pathologique, Hôpital Foch, 92150 Suresnes, France
| | - Y Denoux
- Laboratoire d'Anatomie Pathologique, Hôpital Foch, 92150 Suresnes, France
| | - N Thiounn
- Service d'Urologie, Hôpital Necker, AP-HP, 75015 Paris, France
| | - Y Chrétien
- Service d'Urologie, Hôpital Necker, AP-HP, 75015 Paris, France
| | - A Méjean
- Service d'Urologie, Hôpital Necker, AP-HP, 75015 Paris, France
| | - M Zerbib
- Service d'Urologie, Hôpital Cochin, AP-HP, 75014 Paris, France
| | - G Benoît
- Consultation d'Oncogénétique Spécialisée, Service d'Urologie, Hôpital de Bicêtre, AP-HP, 94270 Le Kremlin-Bicêtre, France
| | - J M Hervé
- Service d'Urologie, Hôpital Foch, 92150 Suresnes, France
| | - G Allègre
- Génétique Oncologique EPHE, CNRS FRE-2939, Institut de Cancérologie Gustave Roussy, 94800 Villejuif, France
- Faculté de Médecine Paris-Sud, 94270 Le Kremlin-Bicêtre, France
| | | | - B T Teh
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - S Richard
- Génétique Oncologique EPHE, CNRS FRE-2939, Institut de Cancérologie Gustave Roussy, 94800 Villejuif, France
- Faculté de Médecine Paris-Sud, 94270 Le Kremlin-Bicêtre, France
- Consultation d'Oncogénétique Spécialisée, Service d'Urologie, Hôpital de Bicêtre, AP-HP, 94270 Le Kremlin-Bicêtre, France
- Génétique Oncologique EPHE, Faculté de Médecine Paris-Sud, 63 rue Gabriel Péri, 94270 Le Kremlin-Bicêtre, France. E-mail:
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Cosset JM, Flam T, Thiounn N, Rosenwald JC, Pontvert D, Timbert M, Solignac S, Chauveinc L. [Brachytherapy for prostate cancer: old concept, new techniques]. Bull Cancer 2006; 93:761-6. [PMID: 16935780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Whereas it has been proposed almost one century ago, brachytherapy for prostate cancer has only recently emerged, especially thanks to endorectal echography, allowing to visualize seed implantation, to the development of seeds for permanent delivery and of micro-sources for high-dose rate delivery, and also to the development of three-dimension dosimetry programs allowing real-time implantations. For selected patients with localized prostate cancer (PSA < 10, Gleason < 7, no extracapsular extension, volume < 50-60 g), prostate brachytherapy with permanent implants (iodine 125 or, less frequently, palladium 103) gives results which appear at 10-15 years comparable to those of surgery. Incontinence and impotence rates appear lower than those of classical surgery. However, the first post-implant months are usually accompanied by urinary toxicity that should not be minimized. High-dose rate brachytherapy (HDR) could find its indications, in combination with conformal radiotherapy, in the treatment of more advanced forms, presenting an intermediate risk. It could also be an alternative to brachytherapy with permanent implants for the low-risk forms mentioned above, especially in developing countries where the cost of radioactive seeds slows down the use of this technique. Brachytherapy for prostate cancer should, therefore, find more and more indications, because of the increased incidence of prostate cancer, due to population ageing, of the increased proportion of localized forms, due to better detection, of the patient's request for less toxicity, and of the expecting lowering of the costs, which are now equivalent to those of surgery and should further lower.
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Affiliation(s)
- J-M Cosset
- Département de radiothérapie, Institut Curie, 26, rue d'Ulm, 75005 Paris
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Oudard S, Thiounn N, Fridman H, Amsellem-Ouazana D, Colombel M, Jacqmin D, Malavaud B, Kravtzoff R. Pharmacokinetics (PK) and immunologic responses in a phase I/II study of a sustained release formulation of IL-2 in renal cell carcinoma (RCC) patients. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.2558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
2558 Background: The utility of interleukin-2 (IL-2) in treating RCC is limited by its significant toxicity, expense, and limited efficacy. Formulations that reduce post-injection peak concentration (Cmax) and support sustained therapeutic levels may improve efficacy and tolerability of IL-2 therapy. In preclinical studies, IL-2 formulated with Medusa (IL-2XL), a novel sustained drug delivery system, reduces Cmax and supports controlled release of IL-2 for up to 6 days. Methods: The open-label Phase I/II study was designed to accrue 12 patients (pts), with a goal of 10 evaluable pts. Pts aged 18–85 at high risk of recurrence after surgical resection of histologically confirmed RCC, and without CNS metastases, other malignancy, autoimmune disorders were eligible. Pts received one single subcutaneous (SC) injection of 10.6 MIU naked IL-2 (IL-2N) or IL-2XL. At least two weeks later, patients were crossed over to receive a single SC administration of 10.6 MIU of the other agent. Safety, PK, biological activity and immunological responses were assessed. Results: 8 patients have accrued and results from 6 pts evaluable to date show a 4-fold reduction in Cmax following IL-2XL injection compared with IL-2N. IL-2 was detectable in serum 7 days after IL-2XL treatment, compared with 2 days for IL-2N. Relative bioavailability of IL-2XL was approximately 150% of IL-2N, and Tmax was appoximately 48 hrs compared with 2–4 hrs. T50 also was higher following IL-2XL administration compared with IL-2N (48 vs. 8 hrs). Soluble CD25 and neopterine, markers of IL-2 activity, had much higher Cmax (159 vs. 63 pg/ml and 14 vs. 6 pM for sCD25 and neopterin) and AUC (14,749 vs. 7,701 pg/ml/hrs and 1,569 vs. 665 pM/hrs for sCD25 and neopterin) following IL-2XL treatment compared with IL-2N. Compared to IL-2N immunoflowcytometry showed an increase in percentage and activation of lymphocytes (CD3+/CD45+; CD8+/CD25+ and CD4+/CD25+). Conclusions: Weekly dosing of IL-2XL reduces Cmax, increases induction of IL-2 biomarkers and improves immunologic responses compared with IL-2N. Data support the development of IL-2-XL used on a weekly schedule for treating cancer and viral disease such as HIV. No significant financial relationships to disclose.
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Affiliation(s)
- S. Oudard
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
| | - N. Thiounn
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
| | - H. Fridman
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
| | - D. Amsellem-Ouazana
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
| | - M. Colombel
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
| | - D. Jacqmin
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
| | - B. Malavaud
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
| | - R. Kravtzoff
- Georges Pompidou European Hospital, Paris, France; Necker Enfants Malades Hospital, Paris, France; Cochin Hospital, Paris, France; Edouard Herriot Hospital, Lyon, France; Hôpitaux Universitaires, Strasbourg, France; Rangueil-Larrey Hosp., Toulouse, France; Flamel Technologies, Venissieux, France
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25
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Hubert D, Patrat C, Guibert J, Bienvenu T, Thiounn N, Viot G, Desmazes-Dufeu N, Jouannet P, Epelboin S. 288 Assisted reproductive technique in men with Cystic Fibrosis. J Cyst Fibros 2006. [DOI: 10.1016/s1569-1993(06)80263-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Buffat C, Patrat C, Merlet F, Guibert J, Epelboin S, Thiounn N, Vieillefond A, Adda-Lievin A, Lebon C, Jouannet P. ICSI outcomes in obstructive azoospermia: influence of the origin of surgically retrieved spermatozoa and the cause of obstruction. Hum Reprod 2005; 21:1018-24. [PMID: 16361290 DOI: 10.1093/humrep/dei418] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Spermatozoa can be retrieved from the testis and epididymis of men with obstructive azoospermia (OA) and used for ICSI. However, it is unknown whether the outcome of ICSI depends on the cause of obstruction or the origin of surgically retrieved spermatozoa. METHODS A cohort of 171 men with OA and normal spermatogenesis were included in this retrospective study. They were divided into three groups according to the site and origin of obstruction: 83 men had congenital bilateral absence of vas deferens; 55 and 33 had acquired epididymal and deferent duct obstructions, respectively. The outcome of 368 ICSI cycles was determined and compared according to the origin of spermatozoa: epididymal (n = 253) or testicular (n = 115). RESULTS Fertilization and clinical pregnancy rates did not differ between spermatozoa of different origin (58.9% versus 51.9% and 22.1% versus 24.3% with epididymal and testicular spermatozoa, respectively). However, the miscarriage rate was significantly higher for testicular spermatozoa (35.7% versus. 12.5% P < 0.05, chi2 test). Findings were similar whatever the aetiology of the OA. CONCLUSION This study suggests that the use of testicular spermatozoa, even those generated during normal spermatogenesis, alters embryonic development and that epididymal spermatozoa should be preferentially used, irrespective of the aetiology of OA.
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Affiliation(s)
- C Buffat
- Laboratoire de Biologie de la Reproduction; CECOS, Hôpital Cochin-Saint Vincent de Paul, Hôpitaux de Paris Université Paris V, Paris, France
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Banu A, Oudard S, Banu E, Kamioneur D, Housset M, Thiounn N, Scotte F, Jenabian A, Mejean A, Andrieu JM. Combination of prostate-specific antigen (PSA) exposure and Gleason score as prognostic factors for prostate cancer (PC) patients. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- A. Banu
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - S. Oudard
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - E. Banu
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - D. Kamioneur
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - M. Housset
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - N. Thiounn
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - F. Scotte
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - A. Jenabian
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - A. Mejean
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
| | - J. M. Andrieu
- Georges Pompidou European Hosp, Paris, France; Trappes Hosp, Trappes, France; Necker Hosp, Paris, France
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28
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Scotte F, Banu E, Oudard S, Banu A, Medioni J, Fabre Guillevin E, Mejean A, Fontaine E, Thiounn N, Andrieu JM. Prostate-specific antigen doubling-time (PSA DT) before onset of chemotherapy as survival predictor for hormone refractory prostate cancer (HRPC) patients. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4551] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- F. Scotte
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - E. Banu
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - S. Oudard
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - A. Banu
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - J. Medioni
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - E. Fabre Guillevin
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - A. Mejean
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - E. Fontaine
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - N. Thiounn
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
| | - J. M. Andrieu
- Georges Pompidou European Hosp, Paris, France; Necker Hosp, Paris, France
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Chauveinc L, Flam T, Solignac S, Thiounn N, Rosenwald J, Phlips P, Timbert M, Debre B, Cosset J. Early urinary morbidity after I125 transperineal interstitial permanent prostate brachytherapy. A multivariate analysis of 600 patients treated by the Institut Curie/Hopital Cochin/Hopital Necker Paris Group. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chauveinc L, Osseili A, Flam T, Thiounn N, Rosenwald JC, Savignoni A, Cosset JM. Migration des grains d'iode 125 après curiethérapie prostatique : étude d'une série de 170 patients. Cancer Radiother 2004; 8:211-6. [PMID: 15450513 DOI: 10.1016/j.canrad.2004.06.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2003] [Revised: 05/10/2004] [Accepted: 06/01/2004] [Indexed: 10/26/2022]
Abstract
PURPOSE To study the number of migrating seeds, the anatomical site of migration and possible predictive parameters of migration, after prostate cancer brachytherapy using a loose-seed (I125) implantation technique. PATIENTS AND METHODS The charts of the 170 patients consecutively treated by the Institut Curie/Hospital Cochin/Hospital Necker Group between September 1, 2001 and August 31, 2002, were analysed. All seeds having migrated to the lungs and seen on the chest X-ray systematically performed at 2 months, have been recorded, as well as the seeds lost by the urines (after sieving) or in the sperm (condom). RESULTS Among 12,179 implanted seeds, 44 were found to have migrated (0.36%). Most of the migrating seeds (32/44; 73%), were found in the lungs. Overall, one or several seed migrations were observed in 35 patients (21% of the total number of patients in this series). In the majority of cases (77%), only one seed migrated. A significant relationship (P = 0.04) was found between the number of migrating seeds and the number of implanted ones (or with the prostate volume, but those two parameters were closely linked in our series). More specifically, a significant relationship (P = 0.02) could be demonstrated between the number of seeds implanted at the periphery of the prostate and the number of seeds migrating to the lungs. CONCLUSION The percentage of migrating seeds observed in this series is low, actually one of the lowest found in the literature when using the loose-seed technique. There was no clinical consequences and the loss of-usually-only one seed is very unlikely to alter the quality of the dose distribution. However, the predominance of pulmonary migrations in our series led us to slightly modify our implantation technique. We now try to avoid too "peripheral" seed implantations, due to the risk of migration towards the periprostatic veins, and subsequently to the lungs.
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Affiliation(s)
- L Chauveinc
- Département d'oncologie-radiothérapie, institut Curie, 26, rue d'Ulm, 75005 Paris, France
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Abstract
This study confirmed several independent risk and protective factors for RCC identified in the authors' previous study. Protective factors such as oral contraceptive use and moderate alcohol consumption were identified only in women. Tobacco consumption and severe obesity were the main independent risk factors. There were other modifiable risk markers, however, such as occupational exposure, thiazidic drug intake, and urinary tract infections. The associations between risk factors and RCC were weak, even for tobacco, for which the association was weaker than that for lung cancer. The identified risks involve a large proportion of the population, however, and the risk attributable to these types of exposure is high. The authors' recommendations for the prevention of RCC are therefore similar to those for the prevention of cardiovascular disease and cancer, and should be disseminated to the general population. The high-risk groups identified are too large for a specific early-screening program for RCC, but such screening might be appropriate if restricted to selected age groups.
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Affiliation(s)
- R Dhote
- Service de Médecine Interne, Hôpital Avicenne, Université Paris XIII, AP-HP, 125 rue de Stalingrad, 93000 Bobigny, France.
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32
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Oudard S, Banu E, Thiounn N, Zerbib M, Flam T, Debré B, Banu A, Scotté F, Andrieu JMM. Corrected area under serum PSA curve as a predictor of survival after chemotherapy for hormone-refractory prostate cancer (HRPC) patients. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.9579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- S. Oudard
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - E. Banu
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - N. Thiounn
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - M. Zerbib
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - T. Flam
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - B. Debré
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - A. Banu
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - F. Scotté
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
| | - J.-M. M. Andrieu
- Georges Pompidou European Hospital, Paris, France; Necker Hospital, Paris, France; Cochin Hospital, Paris, France
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Abstract
OBJECTIVES To evaluate intermittent androgen suppression (IAS) in patients with prostate cancer and to try to define predictive factors for biochemical progression. PATIENTS AND METHODS From 1989 to 2001, 146 patients received IAS as a primary treatment for localized, advanced or metastatic prostate cancer (72 men) or as a treatment for prostate-specific antigen (PSA) recurrence after radical prostatectomy (RP) and/or radiation therapy (74 men). Androgen-deprivation treatment (ADT) was continued up to 6 months after PSA became undetectable or a nadir PSA level was reached. ADT was then re-instituted when the PSA level was> 4 ng/mL for patients who had RP or> 10 ng/mL for the others. RESULTS After a mean (range) follow-up of 45.6 (12-196.9) months, 24 patients had biochemical progression. These patients were younger than those with no biochemical progression (67 vs 72 years, P = 0.004) and had a statistically higher Gleason score (7.21 vs 6.52, P = 0.01) and PSA level (111.1 vs 32.1 ng/mL, P = 0.05), and a shorter first phase without treatment (7.6 vs 11.2 months, P = 0.05). Overall 5-year metastatic disease free survival of 91.3%. The overall 5-year biochemical recurrence-free survival was 68%. Using multivariate analysis, a Gleason score of >or= 8 (P = 0.021), first-phase duration with no treatment of < 1 year (P = 0.044), positive lymph nodes or metastatic disease at the time of starting IAS (P = 0.023) and age < 70 years (P = 0.037) were the strongest predictors of biochemical progression. CONCLUSION IAS appeared to be a feasible treatment; the best candidates being those aged> 70 years with localized prostate cancer and a Gleason score of <or= 7.
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de la Taille A, Flam TA, Thiounn N, Pontvert D, Saighi D, Zerbib M, Debré B. Predictive factors of radiation therapy for patients with prostate specific antigen recurrence after radical prostatectomy. BJU Int 2002; 90:887-92. [PMID: 12460351 DOI: 10.1046/j.1464-410x.2002.03055.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To assess the efficacy of salvage/adjuvant radiation therapy (RT) for patients with prostate-specific antigen (PSA) recurrence after radical prostatectomy (RP). PATIENTS AND METHODS Between 1997 and 2001, 52 patients were treated in our institution with RT for PSA recurrence after RP. The mean (range) delay between RP and RT was 30.5 (0.16-105.6) months. Eighteen patients received no hormonal therapy before RT. The failure of RT was defined as three consecutive increases in PSA levels with intervals of > or = 6 weeks. RESULTS Within a mean (range) follow-up of 27.7 (6-69) months, 18 patients presented with biochemical progression. The 3-year biochemical progression-free survival was 51%. Using univariate analysis, an age < 65 years (P = 0.0262), a Gleason score on the RP specimen of > or = 8 (P = 0.0024), stage pT3 (P = 0.02), a detectable nadir PSA after RT (P < 0.001) and the absence of hormonal therapy (P = 0.0359) were associated with a lower biochemical progression-free survival. However, only the Gleason score (P = 0.0395) and nadir serum PSA after RT (P = 0.028) remained independent predictive factors on multivariate analysis. CONCLUSION Half of the present patients treated with RT for an isolated high serum PSA level after RP were free of biochemical relapse at 3 years of follow-up. RT may be proposed to selected patients with mild morbidity. However, definitive evidence of the beneficial effect of adjuvant RT for patients with PSA recurrence after RP awaits the conclusion of randomized clinical trials.
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Affiliation(s)
- A de la Taille
- Department of Urology, CHU Cochin, and Department of Radiotherapy, Institut Curie, Paris, France.
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Chauveinc L, Flam T, Solignac S, Rosenwald JC, Thiounn N, Firmin F, Cosset JM. [Indications for curietherapy of the prostate using permanent implants]. Cancer Radiother 2002; 6:154-8. [PMID: 12116840 DOI: 10.1016/s1278-3218(02)00163-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In the last decade, brachytherapy emerged as a particularly appealing new way ot treating localized prostate cancer. Recently published 10-12 years biochemical control results appear to be superimposable to the best percentages achieved by surgery or conformal radiotherapy, with a small percentage of complications. This applied to severely patients. Only patients with T1/T2, PSA < 10 ng/mL, and Gleason score < 7 should be proposed such a treatment. The potential benefit of exploring patients with a endorectal coil MRI is being evaluated. The number of positive biopsies is also a parameter which should probably be considered in the therapeutic choice. Moreover, a prostate volume > 60 g, hip mobility limitations, a urinary obstructive syndrome and previous transurethral resection lead to difficulties in technical implantation and therefore must be taken into account when discussing brachytherapy. In conclusion, for adequately selected patients, brachytherapy offers a particularly applied alternative to surgery and external radiotherapy, with satisfactory long term biochemical control rates and limited complications.
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Affiliation(s)
- L Chauveinc
- Département de radiothérapie, institut Curie, 26, rue d'Ulm, 75005 Paris, France.
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Pagès F, Lebel-Binay S, Vieillefond A, Deneux L, Cambillau M, Soubrane O, Debré B, Tardy D, Lemonne JLR, Abastado JP, Fridman WH, Thiounn N. Local immunostimulation induced by intravesical administration of autologous interferon-gamma-activated macrophages in patients with superficial bladder cancer. Clin Exp Immunol 2002; 127:303-9. [PMID: 11876754 PMCID: PMC1906328 DOI: 10.1046/j.1365-2249.2002.01766.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We conducted a phase I/II clinical trial of the safety and efficacy of intravesical administration of autologous IFN-gamma-activated macrophages (MAK) in patients with superficial bladder cancer. Monocyte-derived MAK cells were prepared in vitro and patients received six instillations of 1.4 x 10(8) to 2.5 x 10(8) cells, once a week, for five consecutive weeks. Treatment was well tolerated, with seven grade 1 and five Grade 2 protocol-related adverse effects. Nine out of 17 included patients had no recurrences during the year following the first instillation of MAK. The aim of the present study was to search for immune parameters related to local immunostimulation induced by MAK. Monitoring of the patients showed that urinary IL-8, GM-CSF and, to a lesser extent, IL-18 were increased following MAK instillations, with inter-individual differences. The urinary IL-8 level was about 10-fold higher than that observed for other cytokines, and its biological activity was reflected by a concomitant increase of urinary elastase, indicating neutrophil activation and degranulation. We also showed that nine out of 12 patients investigated presented an increase of urinary neopterin, a marker of IFN-gamma-activated macrophages, 7 days after MAK instillation, while serum neopterin levels were almost stable. These results are in line with persistence of activated macrophages in the bladder wall after infusions. Moreover, there was evidence of macrophages in urine smears 2 months after the sixth MAK instillation, and the score of macrophages correlated with the quantity of neutrophils in the urine. Overall, this study provides evidence of a local immunostimulation induced by this novel and safe immunotherapeutic approach of MAK instillations in patients with superficial bladder cancer.
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Affiliation(s)
- F Pagès
- Hôpital Européen Georges Pompidou, Service d'Immunologie Biologique, Unité INSERM 255, France.
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Abstract
Mapping of methylation patterns in CpG islands has become an important tool for understanding tissue-specific gene expression in both normal and pathological situations. However, the inherent cellular heterogeneity of any given tissues can affect the outcome and interpretation of molecular studies. In order to analyse genomic DNA methylation on a pure cell population from tissue sample, we have developed a simple technique of single-cell microdissection from cryostat sections which can be combined with bisulfite-mediated sequencing of 5-methylcytosine. We report here our results on the methylation status of the androgen receptor gene studied by bisulfite genomic sequencing on purified cells isolated from human testis.
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Affiliation(s)
- A Kerjean
- Institut Cochin de Génétique Moléculaire, Laboratoire de Biologie de la Reproduction, Hôpital Cochin, 75014 Paris, France.
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Zinzindohoué F, Pagès F, Berger A, Danel C, Lazar V, Thiounn N, Fridman WH, Cugnenc PH. [Clinical relevance of interleukin-18 production in the intestinal mucosa]. Gastroenterol Clin Biol 2001; 25:761-9. [PMID: 11598537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- F Zinzindohoué
- Service de Chirurgie Digestive et Générale, Hôpital Européen Georges-Pompidou, Paris, France.
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Ferriès E, Connan F, Pagès F, Gaston J, Hagnéré AM, Vieillefond A, Thiounn N, Guillet J, Choppin J. Identification of p53 peptides recognized by CD8(+) T lymphocytes from patients with bladder cancer. Hum Immunol 2001; 62:791-8. [PMID: 11476902 DOI: 10.1016/s0198-8859(01)00266-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In many types of cancer, p53 frequently accumulates in tumor cells and anti-p53 antibodies can be detected. However, only four CD8(+) T-cell epitopes from p53 have been identified in humans so far. To further analyze the development of a T-cell response against p53, peptides having binding motifs specific for HLA-A1, -A2, -A3, -A24, -B7, -B35, -B44, and -B51 molecules have been defined. The HLA-binding capacity of those peptides was tested, and the stability of formed complexes was defined. Thirteen peptides that bound to HLA-A24 and -B44 molecules are presented. The positive peptides were then used to detect the anti-p53 response of CD8(+) T lymphocytes from patients with bladder cancer. Six peptides, presented by HLA-A2, -B51, or -A24, were able to stimulate T cells from two patients (among 16) with tumor cells that strongly accumulated p53. On the contrary, p53 peptides systematically failed to stimulate T cells from healthy donors or patients with low or undetectable levels of p53 in their tumor cells. These results have led to the identification of four new potential T CD8(+) epitopes from p53: 194-203 associating with HLA-B51 and 204-212, 211-218, and 235-243 associating with HLA-A24.
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Affiliation(s)
- E Ferriès
- INSERM U445, Laboratoire Associé No9 du Comité de Paris de la Ligue contre le Cancer, Institut Cochin de Génétique Moléculaire, Université René Descartes, Paris, France.
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Peyromaure M, Thiounn N, Vieillefond A, de Pinieux G, Zerbib M, Flam T, Debré B. [Chromophobe cell renal cancer, a distinct entity. Report of a series of 35 cases]. Prog Urol 2001; 11:209-14; discussion 214-6. [PMID: 11400480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
OBJECTIVE To describe the clinical and histological characteristics and natural history of clear cell renal carcinoma. PATIENTS AND METHODS The case files of 35 patients (22 men and 13 women, with a mean age of 58 +/- 13.8 years) operated for clear cell renal carcinoma were reviewed. The circumstances of diagnosis and the histological features of the tumour were analysed. The outcome of the patients was studied with a mean follow-up of 70 +/- 20.2 months. RESULTS The diagnosis was incidental in 66% of cases. The macroscopic appearance of the tumour was characteristic: homogeneous and beige or white colour. On light microscopy, tumours were composed of variable proportions of clear cells and eosinophilic cells. The were classified as 15 predominantly eosinophilic tumours (43%), 9 predominantly clear cell tumours (26%) and 11 tumours composed of equal number of clear cells and eosinophilic cells (31%). Nuclei were irregular and indented. Hale stain was positive in every case. The majority of tumours were confined to the kidney (T1: 65% and T2: 29%) with a low nuclear grade (91% of grades 1 and 2). No patient developed local recurrence or metastasis during follow-up. The overall 5-year survival rate was 92%. No death related to the disease was reported. CONCLUSION The histological diagnosis of clear cell renal cancer is now easy and can be suggested even on macroscopic examination of the operative specimen. This tumour appears to have a good prognosis, as it is usually confined to the kidney with a low nuclear grade.
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Affiliation(s)
- M Peyromaure
- Service d'Urologie, Hôpital Cochin, Paris, France
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Pagès F, Lazar V, Berger A, Danel C, Lebel-Binay S, Zinzindohoué F, Desreumaux P, Cellier C, Thiounn N, Bellet D, Cugnenc PH, Fridman WH. Analysis of interleukin-18, interleukin-1 converting enzyme (ICE) and interleukin-18-related cytokines in Crohn's disease lesions. Eur Cytokine Netw 2001; 12:97-104. [PMID: 11282552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
A local increase of interleukin-18 (IL-18) expression has been recently demonstrated in Crohn's disease (CD), suggesting a role for mature IL-18 (cleaved by ICE protease) in the induction of proinflammatory cytokines and Th1 polarization observed in CD lesions. The aim of this study was to investigate IL-18 modulation and its potential immune consequences in CD lesions. We showed increased IL-18 production in chronic CD lesions and identified epithelial cells and macrophages as IL-18-producing cells. A twofold increase in ICE alpha, beta, and/or gamma mRNA that encodes for the complete mature peptide was required for ICE activity, and a marked increase in IL-18R-positive immune cells was observed in chronic lesions compared to uninvolved areas or normal control samples. Chronic lesions also displayed intense transcription of IL-18-induced cytokines, IFN-gamma, IL-1beta, TNF-alpha, and IL-8. By contrast, when neither IL-18 nor ICE mRNAs were enhanced (early asymptomatic CD lesions), IL-18-induced cytokines were not up-regulated. These results are in accordance with a putative role of mature IL-18 in the pathogenesis of CD.
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Affiliation(s)
- F Pagès
- Laboratoire de Transfert en Imunologie, Universités Paris-V, France.
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Chauveinc L, Flam T, Rosenwald J, Araya P, Thiounn N, Firmin F, Debré B, Cosset J. 41 Iodine 125 brachytherapy for prostate cancer. Experience of the group Curie-Cochin. Radiother Oncol 2001. [DOI: 10.1016/s0167-8140(01)80048-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Saighi D, Zerbib M, Thiounn N, Flam T, Conquy S, Jacob L, Dall'Ava-Santucci J, Debré B, Dinh-Xuan AT. [In vitro study of the modulation of human ureteral tonus by nitric oxide and zaprinast, a phosphodiesterase inhibitor]. Prog Urol 2000; 10:1161-8. [PMID: 11217553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
AIM OF THE STUDY To assess the role of nitric oxide (NO) and its second messenger, cGMP, on the mechanisms underlying human ureteral smooth muscle relaxation. METHODS Proximal segments of ureter were dissected from nephrectomy, then cut into rings and suspended in organ chambers. Isometric tone was recorded at baseline and after preincubation with KCl (120 mumol). The Increasing concentration (10-8-10-4 M) of NO donors, Sodium nitroprusside, (SNP) and molsidomine (SIN-1) and a type V phosphodiesterase inhibitor, Zaprinast were added to the organ chambers and a dose response curve was constructed from each experiment. RESULTS Dose-dependent relaxation was seen with all compounds. This was, however, more pronounced with SNP as compared with SIN-1. Zaprinast alone had marginal relaxant effect but markedly potentiated the relaxing effect of the NO donor SNP (p < 0.05). Inhibition of NO synthesis by the arginine analogue L-NA increased electrical-induced contraction (98 +/- 4% vs 122 +/- 3%, p < 0.001). CONCLUSION Activation of the soluble guanylate cyclase by NO donors markedly relaxed significantly human ureteral smooth muscle but inhibition of phosphodiesterase did not affect the in vitro relaxation. Our results suggest that cGMP is an important second messenger in the transduction signalling pathway leading to relaxation of human ureteral smooth muscle. By contrast, basal activity of phosphodiesterase seems to be marginal under physiological condition.
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Affiliation(s)
- D Saighi
- Service d'Urologie, CHU Cochin, Paris, France.
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44
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Pages F, Berger A, Lebel-Binay S, Zinzindohoue F, Danel C, Piqueras B, Carriere O, Thiounn N, Cugnenc PH, Fridman WH. Proinflammatory and antitumor properties of interleukin-18 in the gastrointestinal tract. Immunol Lett 2000; 75:9-14. [PMID: 11163860 DOI: 10.1016/s0165-2478(00)00285-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Interleukin-18 (IL-18) plays a central role in the immune response by acting on Th1 cell differentiation, cell-mediated cytotoxicity and inflammation. The role of IL-18 in cancers and inflammatory diseases is discussed in the light of our investigations on IL-18 synthesis in normal colonic mucosa, colonic cancer and Crohn's disease (CD).
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Affiliation(s)
- F Pages
- Laboratoire Universitaire de Transfert en Immunologie, Universités Paris V, Paris VI/Laboratorie Pierre Fabre, France.
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Dhote R, Beuzeboc P, Thiounn N, Flam T, Zerbib M, Christoforov B, Debré B. High incidence of brain metastases in patients treated with an M-VAC regimen for advanced bladder cancer. Eur Urol 2000; 33:392-5. [PMID: 9612683 DOI: 10.1159/000019622] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE We report on central nervous system metastases from urothelial bladder carcinoma in patients treated with M-VAC chemotherapy. METHODS 50 patients with advanced transitional cell carcinoma of the bladder were treated with the M-VAC regimen at the Hôpital Cochin (Paris, France) between December 1989 and February 1995. Brain relapses were diagnosed by CT scanning. RESULTS We observed a surprising increase in the number of central nervous system relapses (8/50) in patients treated consecutively at the same institution. The mean time to metastatic recurrence in the brain from the initiation of first chemotherapy was 21 months (range 7-38). Six patients had single and 2 patients had multiple central nervous system metastases. Treatment consisted of radiotherapy alone (n = 5) or both surgery and radiotherapy (n = 3). Median survival time from the appearance of cerebral metastases was 3 months (range 1-10). CONCLUSION The prolonged duration of remissions which are achieved following M-VAC chemotherapy may explain the greater likelihood of the detection of cerebral involvement.
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Affiliation(s)
- R Dhote
- Service of Internal Medicine, Hôpital Cochin, Paris, France
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Thiounn N, Missirliu A, Zerbib M, Larrouy M, Dje K, Flam T, Debré B. Corporeal plication for surgical correction of penile curvature. Experience with 60 patients. Eur Urol 2000; 33:401-4. [PMID: 9612685 DOI: 10.1159/000019624] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To evaluate the efficacy of tunica albuginea plication without excision in patients with congenital and acquired penile curvature. METHODS Results were retrospectively analyzed in 60 consecutive patients treated from 1982 to 1996. Mean age was 42.8 years (range 16-77). 25 patients had congenital curvature and 35 patients had acquired curvature (29 Peyronie's disease, 5 postoperative and 1 posttrauma). All patients had penile curvature with angulation over 30 degrees and major intercourse difficulties. RESULTS Postoperatively, 52 patients (87%) had satisfactory cosmetic results and 49 (82%) had satisfactory functional results. All patients (100%) with congenital or postoperative curvature had satisfactory cosmetic results and satisfactory functional results. Patients with Peyronie's disease had a lower success rate with 81% satisfactory cosmetic results and 62% satisfactory functional results. CONCLUSION Tunica albuginea plication is a more simple procedure than tunica albuginea resection (Nesbit procedure) with a comparable success rate and minimal morbidity.
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Affiliation(s)
- N Thiounn
- Clinique Urologique de l'Hôpital Cochin, Paris, France.
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Cornud F, Hamida K, Flam T, Hélénon O, Chrétien Y, Thiounn N, Correas JM, Casanova JM, Moreau JF. Endorectal color doppler sonography and endorectal MR imaging features of nonpalpable prostate cancer: correlation with radical prostatectomy findings. AJR Am J Roentgenol 2000; 175:1161-8. [PMID: 11000183 DOI: 10.2214/ajr.175.4.1751161] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of this study was to describe endorectal sonography and color Doppler sonography features of nonpalpable prostate cancer and to assess the value of endorectal MR imaging for the preoperative local staging of these tumors. MATERIALS AND METHODS Ninety-four patients with nonsuspicious findings on digital rectal examination and a mean prostate-specific antigen level of 16.3 +/-10 ng/mL (median, 13 ng/mL) underwent endorectal sonography, color Doppler sonography, sextant endorectal sonographically guided biopsy, and endorectal MR imaging before radical prostatectomy. RESULTS Tumors were visible in 48 cases and not visible in 46. The mean Gleason biopsy score, the frequency of tumors involving three sextants or more of the prostate gland at biopsies, and the frequency of stage pT3 tumors were significantly higher in patients with visible tumors (5.9+/-0.9, 42%, and 37.5%) than in those with invisible tumors (5.4+/-1.1, 17%, and 17%). The 42 hypervascular tumors were hypoechoic in every case and had a higher rate of Gleason tumor grades 4 and 5 at biopsy than did the 52 hypovascular tumors (33% versus 11.5%). Six hypovascular tumors (6/52, 11.5%, two visible) had an insignificant tumor volume. Established extraprostatic tumor spread was detected on MR imaging in six of 18 cases (sensitivity, 33%; specificity, 100%0, all of which had the following four features: hypervascularity, prostate-specific antigen level greater than 20 ng/mL, three or more sextants of the gland having positive findings at biopsy, and seminal vesicle invasion. CONCLUSION Endorectal sonography and color Doppler sonography are useful to differentiate low-risk invisible and hypovascular tumors from high-risk visible and hypervascular tumors. However, MR imaging has a poor sensitivity for the detection of extraprostatic spread and is accurate only in a minority of highly selected high-risk hypervascular tumors.
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Affiliation(s)
- F Cornud
- Service de Radiologie, Hôpital Necker, 149 rue de Sèvres, 75015 Paris, France. Service d'Urologie, Hôpital Cochin, 24 Rue du Faubourg saint Jacques, 75014 Paris, France. Service d'Urologie, Hôpital Necker, 75015 Paris, France. Service
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48
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Affiliation(s)
- F Cornud
- Hôpital Necker, Service de radiologie, Paris, France.
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49
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Dhôte R, Pellicer-Coeuret M, Thiounn N, Debré B, Vidal-Trecan G. Risk factors for adult renal cell carcinoma: a systematic review and implications for prevention. BJU Int 2000; 86:20-7. [PMID: 10886077 DOI: 10.1046/j.1464-410x.2000.00708.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- R Dhôte
- Service de Santé Publique, Service de Médecine Interne, Université René Descartes, CHU Cochin Port-Royal, Saint-Jacques, Paris, France.
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Lebel-Binay S, Berger A, Zinzindohoué F, Cugnenc P, Thiounn N, Fridman WH, Pagès F. Interleukin-18: biological properties and clinical implications. Eur Cytokine Netw 2000; 11:15-26. [PMID: 10705295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
IL-18, originally identified as interferon-gamma inducing factor (IGIF), is related to the IL-1 family in terms of its structure, processing, receptor, signal transduction pathway and pro-inflammatory properties. IL-18 is also functionally related to IL-12, as it induces the production of Th1 cytokines and participates in cell-mediated immune cytotoxicity. This review summarizes the recent advances in the understanding of IL-18 structure, processing, receptor expression and immunoregulatory functions, and focuses on the role of IL-18 modulation in tumours, infections, and autoimmune and inflammatory diseases.
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Affiliation(s)
- S Lebel-Binay
- Luti/Laboratoire de Recherche Chirurgicale, Bât. Gustave-Roussy, 3e étage, Hôpital Cochin, 27, rue du Faubourg-St-Jacques, 75014 Paris, France.
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