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Ricordel C, Chaillot L, Vlachavas EI, Logotheti M, Jouannic A, Desvallees T, Lecuyer G, Aubry M, Kontogianni G, Mastrokalou C, Jouan F, Jarry U, Corre R, Le Guen Y, Guillaudeux T, Lena H, Chatziioannou A, Pedeux R. Genomic characteristics and clinical significance of CD56+ circulating tumor cells in small cell lung cancer. Sci Rep 2023; 13:3626. [PMID: 36869231 PMCID: PMC9984363 DOI: 10.1038/s41598-023-30536-9] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/24/2023] [Indexed: 03/05/2023] Open
Abstract
Circulating tumor cells (CTC) have been studied in various solid tumors but clinical utility of CTC in small cell lung cancer (SCLC) remains unclear. The aim of the CTC-CPC study was to develop an EpCAM-independent CTC isolation method allowing isolation of a broader range of living CTC from SCLC and decipher their genomic and biological characteristics. CTC-CPC is a monocentric prospective non-interventional study including treatment-naïve newly diagnosed SCLC. CD56+ CTC were isolated from whole blood samples, at diagnosis and relapse after first-line treatment and submitted to whole-exome-sequencing (WES). Phenotypic study confirms tumor lineage and tumorigenic properties of isolated cells for the 4 patients analyzed with WES. WES of CD56+ CTC and matched tumor biopsy reveal genomic alteration frequently impaired in SCLC. At diagnosis CD56+ CTC were characterized by a high mutation load, a distinct mutational profile and a unique genomic signature, compared to match tumors biopsies. In addition to classical pathways altered in SCLC, we found new biological processes specifically affected in CD56+ CTC at diagnosis. High numeration of CD56+ CTC (> 7/ml) at diagnosis was associated with ES-SCLC. Comparing CD56+ CTC isolated at diagnosis and relapse, we identify differentially altered oncogenic pathways (e.g. DLL3 or MAPK pathway). We report a versatile method of CD56+ CTC detection in SCLC. Numeration of CD56+ CTC at diagnosis is correlated with disease extension. Isolated CD56+ CTC are tumorigenic and show a distinct mutational profile. We report a minimal gene set as a unique signature of CD56+ CTC and identify new affected biological pathways enriched in EpCAM-independent isolated CTC in SCLC.
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Affiliation(s)
- Charles Ricordel
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France.
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France.
| | - L Chaillot
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - E I Vlachavas
- e-NIOS PC, Kallithea-Athens, Greece
- Division of Molecular Genome Analysis (B050), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | | | - A Jouannic
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - T Desvallees
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France
- Unité De Pharmacologie Préclinique, Biotrial Pharmacology, Rennes, France
| | - G Lecuyer
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - M Aubry
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - G Kontogianni
- Centre of Systems Biology, Biomedical Research Foundation of the Academy of Athens, 4 Soranou Ephessiou Street, 11527, Athens, Greece
| | | | - F Jouan
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
| | - U Jarry
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France
- Unité De Pharmacologie Préclinique, Biotrial Pharmacology, Rennes, France
| | - R Corre
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France
| | - Y Le Guen
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France
| | - T Guillaudeux
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France
| | - H Lena
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France
- Service de Pneumologie, Hôpital Pontchaillou, CHU Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France
| | - A Chatziioannou
- e-NIOS PC, Kallithea-Athens, Greece
- Centre of Systems Biology, Biomedical Research Foundation of the Academy of Athens, 4 Soranou Ephessiou Street, 11527, Athens, Greece
| | - Rémy Pedeux
- INSERM, OSS (Oncogenesis Stress Signaling), UMR_S 1242, CLCC Eugene Marquis, Univ Rennes 1, 35000, Rennes, France.
- CNRS, INSERM, BIOSIT UAR 3480, US_S 018, Oncotrial, Univ Rennes, 35000, Rennes, France.
- CLCC Eugène Marquis, INSERM U1242-OSS, Université Rennes 1, Rue Bataille Flandres Dunkerque, 35042, Rennes, France.
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Ricordel C, Chaillot L, Vlachavas EI, Logotheti M, Desvallees T, Aubry M, Kontogianni G, Mastrokalou C, Jouan F, Jarry U, Guillaudeux T, Léna H, Chatziioannou A, Pedeux R. EP16.02-004 Clinical Significance and Genomic Characteristics of CD56+ Circulating Tumor Cells in Small Cell Lung Carcinoma. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1035] [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: 11/25/2022]
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Mahévas T, Kottler D, Jouan F, Deschamps L, Abrial Y, Crickx B, Descamps V. Infiltration sclérodermiforme péribuccale : une localisation rare de l’amylose AL. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.399] [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: 10/20/2022]
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Chesnel F, Hascoet P, Gagné JP, Couturier A, Jouan F, Poirier GG, Le Goff C, Vigneau C, Danger Y, Verite F, Le Goff X, Arlot-Bonnemains Y. The von Hippel-Lindau tumour suppressor gene: uncovering the expression of the pVHL172 isoform. Br J Cancer 2015; 113:336-44. [PMID: 26035699 PMCID: PMC4506380 DOI: 10.1038/bjc.2015.189] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/20/2015] [Accepted: 04/29/2015] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND The von Hippel-Lindau (VHL) gene encodes two mRNA variants. Variant 1 encodes two protein isoforms, pVHL213 and pVHL160, that have been extensively documented in the literature. Variant 2 is produced by alternative splicing of exon 2 and encodes a pVHL isoform of 172 amino acids with a theoretical molecular weight of 19 kDa (pVHL172), the expression of which has never been demonstrated so far due to the absence of suitable antibodies. METHODS We have generated an anti-pVHL monoclonal antibody (JD-1956) using pVHL172 recombinant protein. We tested the antibody against exogenous or endogenous expressed proteins in different cell lines. We identified the pVHL172 using a silencing RNA strategy. The epitope of the antibody was mapped using a peptide array. RESULTS We efficiently detected the three different isoforms of pVHL in cell lines and tumorigenic tissues by western blotting and immunohistochemistry and confirmed for the first time the endogenous expression of pVHL172. CONCLUSIONS The endogenous expression of the three isoforms and particularly the pVHL172 has never been shown before due to a lack of a highly specific antibody since none of the available commercial antibodies distinguish the three isoforms of pVHL in cells or in both normal and cancerous human tissues. Evidence of pVHL172 expression emphasises the need to further study its implication in renal tumorigenesis and VHL disease.
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Affiliation(s)
- F Chesnel
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
| | - P Hascoet
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
| | - J P Gagné
- Centre de Recherche du CHU de Québec–Pavillon CHUL–Faculté de Médecine, Université Laval, 2705 Boulevard Laurier, Québec, G1V 4G2 QC, Canada
| | - A Couturier
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
| | - F Jouan
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
| | - G G Poirier
- Centre de Recherche du CHU de Québec–Pavillon CHUL–Faculté de Médecine, Université Laval, 2705 Boulevard Laurier, Québec, G1V 4G2 QC, Canada
| | - C Le Goff
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
| | - C Vigneau
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
| | - Y Danger
- EFS–LNPRM-Etablissement français du sang Rennes, Rue Pierre Jean Gineste, BP 91614, 35016 Rennes, France
| | - F Verite
- EFS–LNPRM-Etablissement français du sang Rennes, Rue Pierre Jean Gineste, BP 91614, 35016 Rennes, France
| | - X Le Goff
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
| | - Y Arlot-Bonnemains
- CNRS–UMR 6290 (IGDR)–Université Rennes 1-BIOSIT, 2 Avenue du Professeur L Bernard, 35042 Rennes, France
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Brunot A, Rioux-Leclercq N, Bensalah K, Verhoest G, Edeline J, Bellaud P, Viel R, Jouan F, Laguerre B, Kammerer-Jacquet SF. Overexpression of PD-1 and PD-L1 in renal cell carcinoma is associated with poor prognosis in metastatic patients treated with sunitinib. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv097.2] [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: 11/14/2022] Open
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Dugay F, Le Goff X, Rioux-Leclerq N, Chesnel F, Jouan F, Henry C, Cabillic F, Verhoest G, Vigneau C, Arlot-Bonnemains Y, Belaud-Rotureau MA. Overexpression of the polarity protein PAR-3 in clear cell renal cell carcinoma is associated with poor prognosis. Int J Cancer 2014; 134:2051-60. [PMID: 24136590 DOI: 10.1002/ijc.28548] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2013] [Accepted: 10/10/2013] [Indexed: 01/09/2023]
Abstract
The partition-defective 3 (PAR-3) protein is implicated in the development and maintenance of cell polarity and is associated with proteins that mediate the changes in cytoskeleton organization required for cell polarity establishment. In this work, we used two original primary cell lines (R-180 and R-305) derived from clear cell Renal Cell Carcinoma (ccRCC) surgical specimens of a patient with unfavorable clinical course (R-180 cells) and a patient with favorable prognosis (R-305 cells) to identify genetic and molecular features that may explain the survival difference of the two patients. The cytogenetic analysis of these cell lines revealed that the PARD3 gene was amplified only in the R-180 cell line that was derived from an aggressive ccRCC. PARD3 gene amplification was associated with overexpression of the encoded protein and altered cytoskeleton organization. Consistently, PARD3 knockdown in R-180 cells restored the cytoskeleton organization and reduced cell migration in comparison to non-transfected cells. Immunohistochemical analysis of ccRCC samples from a cohort of 96 patients with a follow-up of 6 years revealed that PAR-3 overexpression was correlated with poor survival. Our results suggest that PAR-3 has a role in the clinical aggressiveness of ccRCC, possibly by promoting cell migration.
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Verhoest G, Dolley-Hitze T, Jouan F, Bensalah K, Arlot-Bonnemains Y, Dugay F, Belaud-Rotureau MA, Rioux-Leclercq N, Vigneau C. Système rénine-angiotensine et cancers urologiques. Prog Urol 2014; 24:73-9. [DOI: 10.1016/j.purol.2013.09.010] [Citation(s) in RCA: 4] [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] [Received: 05/02/2013] [Revised: 09/12/2013] [Accepted: 09/13/2013] [Indexed: 01/10/2023]
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Gobert D, Jouan F, Sacre K, Socolovschi C, Parola P, Papo T. Vascularite systémique sévère, rickettsiose maligne et sclérodermie : une vasculopathie complexe. Rev Med Interne 2012. [DOI: 10.1016/j.revmed.2012.10.220] [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: 10/27/2022]
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Cerini C, Gondouin B, Dou L, Duval-Sabatier A, Brunet P, Dignat- George F, Burtey S, Okano K, Okano K, Iwasaki T, Jinnai H, Hibi A, Miwa N, Kimata N, Nitta K, Akiba T, Dolley-Hitze T, Verhoest G, Jouan F, Arlot-Bonnemains Y, Lavenu A, Belaud-Rotureau MA, Rioux-Leclercq N, Vigneau C, Cox SN, Sallustio F, Serino G, Loverre A, Pesce F, Gigante M, Zaza G, Stifanelli P, Ancona N, Schena FP, Marc P, Jacques T, Green JM, Mortensen RB, Verma R, Leu K, Schatz PJ, Wojchowski DM, Ihoriya C, Satoh M, Sasaki T, Kashihara N, Jung YJ, Kang KP, Lee AS, Lee JE, Lee S, Park SK, Kim W, Kang KP, Florian T, Tepel M, Ying L, Katharina K, Nora F, Antje W, Alexandra S, Chiu YT, Wu MJ, Liu ZH, Liang Y, Zheng CX, Chen ZH, Zeng CH, Ranzinger J, Rustom A, Kihm L, Heide D, Scheurich P, Zeier M, Schwenger V, Liu J, Liu J, Zhong F, Xu L, Zhou Q, Hao X, Wang W, Chen N, Zhong F, Zhong F, Liu X, Zhou Q, Hao X, Lu Y, Guo S, Wang W, Lin D, Chen N, Vilasi A, Deplano S, Deplano S, Cutillas P, Unwin R, Tam FWK, Medrano-Andres D, Lopez-Martinez V, Martinez-Miguel P, Cano JL, Arribas I, Rodiguez-Puyol M, Lopez-Ongil S, Kadoya H, Nagasu H, Satoh M, Sasaki T, Kashihara N, Lindeberg E, Grundstrom G, Alexandra S, Tepel M, Katharina K, Alexandra M, Ghosh CC, David S, Mukherjee A, John SG, Mcintyre CW, Haller H, Parikh SM, Troyano N, Del Nogal M, Olmos G, Mora I, DE Frutos S, Rodriguez-Puyol M, Ruiz MP, Rothe H, Rothe H, Shapiro W, Ketteler M, Ramakrishnan SK, Loupy A, Houillier P, Guilhermino Pereira L, Boim M, Aragao D, Casarini D, Jin Y, Jin Y, Chen N, Moon JY, Kim YG, Lee SH, Lee TW, Ihm CG, Kim EY, Lee HJ, Wi JG, Jeong KH, Ruan XZ, LI LC, Varghese Z, Chen JB, Lee CT, Moorhead J, Dou L, Gondouin B, Cerini C, Poitevin S, Brunet P, Dignat-George F, Stephane B, Bonanni A, Verzola D, Maggi D, Brunori G, Sofia A, Mannucci I, Maffioli S, Salani B, D'amato E, Saffioti S, Laudon A, Cordera R, Garibotto G, Maquigussa E, Boim M, Arnoni C, Guilhermino Pereira L. Cell signalling / Pathophysiology. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs213] [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: 11/12/2022] Open
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Rioux-Leclercq N, Dolley-Hitze T, Lorcy N, Belaud-Roturaud MA, Jouan F, Vigneau C. Registre RARe (reins sous antiangiogéniques) : résultats à un an. Ann Pathol 2011. [DOI: 10.1016/j.annpat.2011.09.047] [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: 11/27/2022]
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Perrin C, Patard JJ, Jouan F, Collet N, Théoleyre S, Edeline J, Zerrouki S, Laguerre B, Bellaud-Roturaud MA, Rioux-Leclercq N, Vigneau C. [The neutrophil gelatinase-associated lipocalin, or LCN 2, marker of aggressiveness in clear cell renal cell carcinoma]. Prog Urol 2011; 21:851-8. [PMID: 22035911 DOI: 10.1016/j.purol.2011.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 05/01/2011] [Accepted: 06/20/2011] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To determine the prognostic significance of the neutrophil gelatinase-associated lipocalin (NGAL) and the matrix metalloproteinase 9 (MMP-9) in clear cell renal cell carcinoma (CCRCC). PATIENTS AND METHODS NGAL and MMP-9 expression were quantified by immunohistochemistry in clear renal cell carcinoma tissues and in sera by Enzyme Linked Immunosorbent Assay (Elisa). Results were associated with clinicopathologic data. RESULTS Seventy-four patients operated for CCRCC in Rennes between 2003 and 2009 were included. High concentrations of NGAL-MMP-9 complex in serum were associated with short progression free survival (PFS) (33.3 months versus 47.3 months, P=0.016) and poor overall survival (42.5 months versus 51.9 months, P<0.047). High NGAL concentrations in serum were also associated with shorter PFS (13.6 months versus 41.6 months, P=0.04). However, no NGAL expression was observed in renal tumor cells. Interestingly, NGAL was expressed by neutrophils infiltrating CCRCC and we showed that the density of NGAL expressing neutrophils was associated with pejorative PFS and survival (36.9months versus 56.1 months, P<0.006). CONCLUSION In this study, we showed the pejorative significance of NGAL-MMP-9 complex and NGAL rates in serum of CCRCC. We also confirmed that density of NGAL expressing neutrophils in CCRCC was associated with poor outcome.
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Affiliation(s)
- C Perrin
- UMR CNRS 6061/IFR 140, Rennes équipe Cancer du rein, avenue du Professeur-Léon-Bernard, 35000 Rennes, France
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Vigneau C, Dolley Hitze T, Lorcy N, Jouan F, Belaud Rotureau MA, Rioux Leclercq N. Registre RARe (reins sous antiangiogéniques) : résultats à un an. Nephrol Ther 2011. [DOI: 10.1016/j.nephro.2011.07.020] [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: 11/29/2022]
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Dolley-Hitze T, Jouan F, Martin B, Mottier S, Edeline J, Moranne O, Le Pogamp P, Belaud-Rotureau MA, Patard JJ, Rioux-Leclercq N, Vigneau C. Angiotensin-2 receptors (AT1-R and AT2-R), new prognostic factors for renal clear-cell carcinoma? Br J Cancer 2010; 103:1698-705. [PMID: 21102591 PMCID: PMC2994218 DOI: 10.1038/sj.bjc.6605866] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background: The growth factor Angiotensin-2 signals through Angiotensin receptor type 1 (AT1-R) in a broad range of cell types and tumours and through the type-2 receptor (AT2-R) in a more restricted group of cell types. Although numerous forms of cancer have been shown to overexpress AT1-R, expression of AT1-R and AT2-R by human renal clear-cell carcinoma (RCCC) is not well understood. In this study, the expression of both angiotensin receptors was quantified in a retrospective series of RCCC and correlated with prognostic factors. Methods: Angiotensin receptor type 1 and AT2-R expressions were quantified on tumour tissues by immunohistochemistry (IHC), western blot and quantitative reverse transcriptase PCR (qRT–PCR). IHC results were correlated to Fuhrman's grade and patient progression-free survival (PFS). Results: A total of 84 RCCC were analysed. By IHC, AT1-R and AT2-R were expressed to a greater level in high-grade tumours (AT1-R: P<0.001, AT2-R: P<0.001). Univariate analysis showed a correlation between PFS and AT1-R or AT2-R expression (P=0.001). By multivariate analysis, only AT2-R expression correlated with PFS (HR 1.021, P=0.006) and cancer stage (P<0.001). By western blot, AT1-R and AT1-R were also found to be overexpressed in higher Fuhrman's grade (P<0.01 and P=0.001 respectively). By qRT–PCR, AT1-R but not AT2-R mRNA were downregulated (P=0.001 and P=0.118, respectively). Conclusion: Our results show that AT1-R and AT2-R proteins are overexpressed in the most aggressive forms of RCCC and that AT2-R expression correlates with PFS. AT1-R or AT2-R blockage could, therefore, offer novel directions for anti-RCCC therapy.
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Affiliation(s)
- T Dolley-Hitze
- CNRS UMR6061/IFR140, Faculté de Médecine Université de Rennes 1, 2 avenue du professeur Léon Bernard, CS34317, 35043 Rennes Cedex, France
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Patard JJ, Rioux-Leclercq N, Masson D, Zerrouki S, Jouan F, Collet N, Dubourg C, Lobel B, Denis M, Fergelot P. Absence of VHL gene alteration and high VEGF expression are associated with tumour aggressiveness and poor survival of renal-cell carcinoma. Br J Cancer 2009; 101:1417-24. [PMID: 19755989 PMCID: PMC2768461 DOI: 10.1038/sj.bjc.6605298] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: The von Hippel–Lindau gene (VHL) alteration, a common event in sporadic clear-cell renal-cell carcinoma (CCRCC), leads to highly vascularised tumours. Vascular endothelial growth factor (VEGF) is the major factor involved in angiogenesis, but the prognostic significance of both VHL inactivation and VEGF expression remain controversial. The aims of this study were to analyse the relationship between VHL genetic and epigenetic alterations, VHL expression and VEGF tumour or plasma expression, and to analyse their respective prognostic value in patients with CCRCC. Methods: A total of 102 patients with CCRCC were prospectively analysed. Alterations in VHL were determined by sequencing, Multiplex Ligation-dependent Probe Amplification (MLPA) and methylation-specific MLPA. Expression of pVHL and VEGF was determined by immunohistochemistry. Plasma VEGF was measured by enzyme-linked immunosorbent assay (ELISA). Results: VHL mutation, deletion and promoter methylation were identified in 70, 76 and 14 cases, respectively. Overall, at least one VHL-gene alteration occurred in 91 cases (89.2%). Both VEGF tumour and plasma expression appeared to be decreased in case of VHL alteration. Median progression-free survival and CCRCC-specific survival were significantly reduced in patients with wild-type VHL or altered VHL and high VEGF expression, which, therefore, represent two markers of tumour aggressiveness in CCRCC. Conclusion: Stratifying CCRCCs according to VHL and VEGF status may help tailor therapeutic strategy.
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Affiliation(s)
- J-J Patard
- Department of Urology, Rennes University Hospital, Rennes, France.
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Martin B, Jouan F, Stock N, Delcros J, Rioux N, Patard J, Arlot J, Fergelot P. Expression of Aurora kinases in clear cell renal carcinoma. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71484-8] [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: 10/21/2022] Open
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Patard J, Fergelot P, Verhoest G, Zerrouki S, Mottier S, Jouan F, Denis M, Rioux-LeClercq N. Wild type VHL clear cell renal carcinoma: Is it a distinct clinical and histological entity? J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.11057] [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: 11/20/2022] Open
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Rioux-Leclercq N, Patard J, Leray E, Lobel B, Guille F, Jouan F, Bellaud P, Epstein J. Évaluation du facteur de prolifération Ki67 dans le diagnositc différentiel néoplasie intra-épithéliale de haut grade de malignité vs adénocarcinome intracanalaire de prostate. Ann Pathol 2004. [DOI: 10.1016/s0242-6498(04)94217-4] [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: 10/28/2022]
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Hivet M, Jouan F, Jega A. [Revascularisation of the arteries of the digestive tract by retrosternal bypass from the left subclavian artery (author's transl)]. Nouv Presse Med 1978; 7:1109-11. [PMID: 662627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This technique of revascularisation of the digestive arteries is suggested when the infrarenal aorta cannot be used. The hepatic artery is reimplanted in the coeliac region. The vein graft is passed in the root of the transverse mesocolon and anastomosed with the superior mesenteric artery. The subclavian artery, frequently used in the revascularisation of the neck vessels, was felt to be preferable to the axillary artery. Passage of the graft retrosternally avoids any kinking or compression in the abdominal wall. The patient's own saphenous vein is the most suitable material. If this is not possible, a varicosity preserved by cold was felt to be preferable to a dacron tube.
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Couinaud C, Jouan F. [Biliary ileus. A very unusual form: duodenal calculi]. Arch Fr Mal App Dig 1968; 57:473-86. [PMID: 5741152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Porcher P, Cottet J, Lehmann R, Jouan F. [Results obtained in oral angiocholegraphy with 4114 Th (vesipaque)]. Arch Mal Appar Dig Mal Nutr 1954; 43:828-33; discussion, 833-4. [PMID: 13198374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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