1
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Duvaltier L, El Karoui K, Bosselut N, Boutan-Laroze A, Boffa JJ, Buob D, Brousse R. The Case | A paraneoplastic kidney injury? Kidney Int 2023; 104:401-402. [PMID: 37479389 DOI: 10.1016/j.kint.2023.05.017] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/15/2023] [Accepted: 05/25/2023] [Indexed: 07/23/2023]
Affiliation(s)
- Lucile Duvaltier
- Sorbonne Université, INSERM UMRS 1155, Nephrology Department, Assistance Publique Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - Khalil El Karoui
- Sorbonne Université, INSERM UMRS 1155, Nephrology Department, Assistance Publique Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - Nelly Bosselut
- Université Paris Cité, Department of Cellular Biology, Saint-Louis Hospital, Assistance Publique Hôpitaux de Paris, Paris, France
| | | | - Jean-Jacques Boffa
- Sorbonne Université, INSERM UMRS 1155, Nephrology Department, Assistance Publique Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - David Buob
- Sorbonne Université, Department of Pathology, Assistance Publique Hôpitaux de Paris, Hôpital Tenon, Paris, France
| | - Romain Brousse
- Sorbonne Université, INSERM UMRS 1155, Nephrology Department, Assistance Publique Hôpitaux de Paris, Hôpital Tenon, Paris, France.
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2
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Willekens C, Chahine C, Dragani M, Khalife‐Hachem S, Bigenwald C, Rossignol J, Castilla‐Llorente C, Danu A, Michot J, Saada V, Cotteret S, Marzac C, Renneville A, Plo I, Broutin S, Bosselut N, Cassinat B, Lazarovici J, Droin N, De Botton S. When monoclonal gammopathy-associated chronic neutrophilic leukemia is a reactive process distinct from a clonal myeloproliferative neoplasm: Lessons from mistakes. EJHaem 2023; 4:823-826. [PMID: 37601857 PMCID: PMC10435719 DOI: 10.1002/jha2.713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 08/22/2023]
Affiliation(s)
- Christophe Willekens
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
- Inserm U1287Gustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Claude Chahine
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Matteo Dragani
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | | | - Camille Bigenwald
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Julien Rossignol
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | | | - Alina Danu
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Jean‐Marie Michot
- Département d'Innovation Thérapeutique et d'Essais PrécocesGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Veronique Saada
- Département de Biologie et Pathologie MédicalesGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Sophie Cotteret
- Département de Biologie et Pathologie MédicalesGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Christophe Marzac
- Département de Biologie et Pathologie MédicalesGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Aline Renneville
- Inserm U1287Gustave RoussyUniversité Paris‐SaclayVillejuifFrance
- Département de Biologie et Pathologie MédicalesGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Isabelle Plo
- Inserm U1287Gustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Sophie Broutin
- Département de Biologie et Pathologie MédicalesGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Nelly Bosselut
- AP‐HPHôpital Saint‐Louis, Service de Biologie CellulaireParisFrance
| | - Bruno Cassinat
- AP‐HPHôpital Saint‐Louis, Service de Biologie CellulaireParisFrance
| | - Julien Lazarovici
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Nathalie Droin
- Inserm U1287Gustave RoussyUniversité Paris‐SaclayVillejuifFrance
| | - Stephane De Botton
- Département d'HématologieGustave RoussyUniversité Paris‐SaclayVillejuifFrance
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3
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Bouchahda M, Saffroy R, Karaboué A, Hamelin J, Innominato P, Saliba F, Bosselut N, Lemoine A, Lévi F. Reply to P. Gazzaniga et al. JCO Precis Oncol 2021; 5:391-392. [DOI: 10.1200/po.20.00465] [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)
- Mohamed Bouchahda
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Raphael Saffroy
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Abdoulaye Karaboué
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Jocelyne Hamelin
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Pasquale Innominato
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Faouzi Saliba
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Nelly Bosselut
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Antoinette Lemoine
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
| | - Francis Lévi
- Mohamed Bouchahda, MD, Medical Oncology Department, Paul Brousse Hospital, Villejuif, France; UPR “Chronotherapy, Cancer and Transplantation,” Medical School, Paris-Saclay University, Villejuif, France; Medical Oncology Unit, Clinique Saint Jean L'Ermitage, Melun, France; Medical Oncology Unit, Clinique du Mousseau, Evry, France; Raphael Saffroy, MD, Oncogenetics Department, APHP, Université Paris-Saclay, Paul Brousse Hospital, Villejuif, France; Abdoulaye Karaboué, MD, UPR “Chronotherapy, Cancer and
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4
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Bouchahda M, Saffroy R, Karaboué A, Hamelin J, Innominato P, Saliba F, Levi F, Bosselut N, Lemoine A. Efficacy of an anti-EGFR after ctDNA conversion from mutated RAS status of metastatic colorectal cancer: Results of a pilot study. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.e15574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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
e15574 Background: This pilot study aimed at the evaluation of the efficacy of anti-EGFR therapy in patients with initially RAS-mutated metastatic colorectal cancer, whose liquid biopsy found no RAS mutation after prior chemotherapy failure. Methods: Sixteen patients with RAS-mutated metastatic colorectal cancer in the solid tumor were included, after they had received 1 to 3 prior chemotherapy lines without anti-EGFR. Before inclusion, RAS genotyping was performed in circulating tumor DNA (ctDNA) from liquid biopsy, after a median duration of ̃24 months after the initial RAS status determination. No RAS mutation was detected in the circulating tumor DNA from 9 patients (56%), who then received cetuximab-FOLFIRI. The 7 patients who had persistent RAS mutation in the liquid biopsy (44%) were treated according to standard recommendations without anti-EGFR. Results: The median progression free survival was 8.2 months [95%CL, 4.5 – 11.8] in patients without detectable ctDNA RAS mutation, as compared to 3.5 months [2.1 – 4.9] in the ctDNA mutated patients (p < 0.001). The median overall survival was 22.3 months [17.3 - 27.3] in the patients with undetectable ctDNA RAS mutation, whereas it was 4.7 months [2.6 - 6.7] in those with ctDNA RAS mutation (p = 0.013). These results suggested the efficacy of cetuximab-based chemotherapy in patients with initially RAS mutated metastatic colorectal cancer, who later displayed no detectable ctDNA RAS mutation. Conclusions: The introduction of an anti-EGFR could provide an additional treatment option for patients with metastatic colorectal cancer with apparent conversion of initial RAS mutation, based on ctDNA assessment after prior failure on anti-EGFR-free chemotherapy.
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Affiliation(s)
| | - Raphael Saffroy
- Oncogenetics Department, APHP, Universite´ Paris- Saclay, Paul Brousse Hospital, Villejuif, France
| | | | - Jocelyne Hamelin
- Oncogenetics Department, APHP, Universite´ Paris- Saclay, Paul Brousse Hospital, Villejuif, France
| | | | - Faouzi Saliba
- Centre Hépato Biliaire, AP-HP, Hôpital Paul Brousse (APHP), Villejuif, France
| | | | - Nelly Bosselut
- Oncogenetics Department, APHP, Universite´ Paris- Saclay, Paul Brousse Hospital, Villejuif, France
| | - Antoinette Lemoine
- Hopital Paul Brousse Biochemistry Department, University Paris Sud, Villejuif, France
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5
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Bouchahda M, Saffroy R, Karaboué A, Hamelin J, Innominato P, Saliba F, Lévi F, Bosselut N, Lemoine A. Undetectable RAS-Mutant Clones in Plasma: Possible Implication for Anti-EGFR Therapy and Prognosis in Patients With RAS-Mutant Metastatic Colorectal Cancer. JCO Precis Oncol 2020; 4:1900400. [PMID: 33015528 PMCID: PMC7529530 DOI: 10.1200/po.19.00400] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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] [Accepted: 07/17/2020] [Indexed: 12/16/2022] Open
Abstract
PURPOSE Combining cetuximab with chemotherapy provides clinical benefit to 60% of the patients with RAS wild-type (RAS-wt) metastatic colorectal cancer (mCRC). This pilot study investigated the efficacy of cetuximab-based chemotherapy in a sample of patients (40%) with RAS mutation (RAS-mt) in their primary tumor whose circulating tumor DNA (ctDNA) was RAS-wt. MATERIALS AND METHODS The occurrence of Kirsten rat sarcoma viral oncogene homolog (KRAS), neuroblastoma rat sarcoma viral oncogene homolog (NRAS), V-raf murine sarcoma viral oncogene homolog B1 (BRAF), and PI3KCA mutations was determined in ctDNA by using a new ultrasensitive analysis based on mass spectrometry detection. All consenting patients with confirmed RAS-mt mCRC had disease progression on previous chemotherapy that contained no anti–epidermal growth factor receptor (EGFR). The patients with RAS-wt ctDNA received cetuximab + fluorouracil, leucovorin, and irinotecan (FOLFIRI), whereas those with RAS-mt ctDNA were treated with the oncologist’s choice of therapy. RESULTS Of 16 registered patients, 11 were male and five female. They were age 48 to 81 years, and they had unresectable metastatic adenocarcinoma from the colon (n = 11) or rectum (n = 5), with a median of two metastatic sites. They had received a median number of three previous chemotherapy protocols. Plasma genotyping identified RAS-mt in seven patients (44%) and RAS-wt in nine patients (56%). In the patients with wt ctDNA, objective tumor response rate was 50.0%, including one complete response and four partial responses after a median number of 6 courses of cetuximab + FOLFIRI (range, 1 to 16 courses). Two of the nine patients had stable disease, and two had progressive disease. No grade 3 to 4 toxicities were encountered. One-year survival rates were 60.0% for the patients with RAS-wt ctDNA and 17.9% for those with RAS-mt ctDNA. Median overall survival times were not reached and 4.7 months, respectively. CONCLUSION Patients with RAS-mt mCRC whose plasma biopsies contained RAS-wt could benefit from cetuximab-based therapy, a hypothesis to be tested in a prospective randomized trial.
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Affiliation(s)
- Mohamed Bouchahda
- Medical Oncology Department, Paul Brousse Hospital, Villejuif, France.,Medical Oncology Unit, Clinique du Mousseau, Evry, France
| | - Raphael Saffroy
- Oncogenetics Department, Assistance Publique-Hôpitaux de Paris, Paul Brousse Hospital, Université Paris-Saclay, Villejuif, France
| | - Abdoulaye Karaboué
- French National Institute for Health and Medical Research (INSERM), Unit 935, Villejuif, France.,Medical Oncology Unit, Groupe Hospitalier Intercommunal Le Raincy-Montfermeil, Montfermeil, France
| | - Jocelyne Hamelin
- Oncogenetics Department, Assistance Publique-Hôpitaux de Paris, Paul Brousse Hospital, Université Paris-Saclay, Villejuif, France
| | - Pasquale Innominato
- French National Institute for Health and Medical Research (INSERM), Unit 935, Villejuif, France.,North Wales Cancer Centre, Ysbyty Gwynedd, Betsi Cadwaladr University Health Board, Bangor, United Kingdom.,Cancer Chronotherapy Team, Cancer Research Centre, Division of Biomedical Sciences, Warwick Medical School, Coventry, United Kingdom
| | - Faouzi Saliba
- Centre Hépato Biliaire, Assistance Publique-Hôpitaux de Paris, Hôpital Paul Brousse, Villejuif, France
| | - Francis Lévi
- Medical Oncology Department, Paul Brousse Hospital, Villejuif, France.,French National Institute for Health and Medical Research (INSERM), Unit 935, Villejuif, France.,Cancer Chronotherapy Team, Cancer Research Centre, Division of Biomedical Sciences, Warwick Medical School, Coventry, United Kingdom
| | - Nelly Bosselut
- Oncogenetics Department, Assistance Publique-Hôpitaux de Paris, Paul Brousse Hospital, Université Paris-Saclay, Villejuif, France
| | - Antoinette Lemoine
- Oncogenetics Department, Assistance Publique-Hôpitaux de Paris, Paul Brousse Hospital, Université Paris-Saclay, Villejuif, France
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6
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Bouchahda M, Karaboué A, Saffroy R, Hamelin J, Bosselut N, Lemoine A. Undetectable RAS mutant clones in plasma: Possible implication for therapy and prognosis in the patient with RAS mutant metastatic colorectal cancer? Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.069] [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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7
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Ruiz A, Sebagh M, Saffroy R, Allard MA, Bosselut N, Hardoin G, Vasseur J, Hamelin J, Adam R, Morère JF, Lemoine A. Chronological occurrence of PI3KCA mutations in breast cancer liver metastases after repeat partial liver resection. BMC Cancer 2019; 19:169. [PMID: 30795751 PMCID: PMC6387498 DOI: 10.1186/s12885-019-5365-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 02/11/2019] [Indexed: 12/31/2022] Open
Abstract
Background Liver metastases of breast cancer are frequent and can recur even after “complete/R0” resection in combination with systemic and hormonal treatments. The aim of this study was to analyze throughout repeat hepatectomies for liver metastases the evolution of PI3KCA gene mutational status. Methods All liver metastases nodules (n = 70) from 19 women who underwent at least 2 liver resections were reexamined. DNA extraction from archived tumoral tissue was performed and the major ‘hot spot’ mutations in the helical and catalytic domains of PI3KCA have been analyzed using Massarray platform (Agena Bioscience) based on allelic discrimination PCR amplification followed by sensitive mass spectrometry detection. Results The two major somatic hot spot PI3KCA mutations were found in 27 (38.6%) nodules corresponding to 8 of the 19 patients (42%). The frequency of women whose breast cancer liver metastases (BCLM) carries PI3KCA mutations increased from the first to the third hepatectomy. Tumors carrying PI3KCA mutations are significantly larger and more frequently observed when resections were R0 compared to patients with no PI3KCA mutation. Conclusion PI3KCA mutations are frequently observed in BCLM and persist along with the recurrence. Their identification in circulating tumor cells should become a useful biomarker in the routine practice of breast cancer management to prevent tumor recurrence and overcome the problems of intra- and inter-tumoral heterogeneity of the current biomarkers,
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Affiliation(s)
- Aldrick Ruiz
- Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.,AP-HP Hôpital Paul Brousse, Centre Hépato-Biliaire, Villejuif, France
| | - Mylène Sebagh
- Department de Pathologie, AP-HP Hôpital Paul Brousse, Villejuif, France.,Inserm UMR-S 1193, Université Paris-Sud, Orsay, France
| | - Raphaël Saffroy
- Inserm UMR-S 1193, Université Paris-Sud, Orsay, France.,AP-HP Hôpital Paul Brousse, Department Oncogénétique, Villejuif, France
| | - Marc-Antoine Allard
- AP-HP Hôpital Paul Brousse, Centre Hépato-Biliaire, Villejuif, France.,Inserm UMR-S 1193, Université Paris-Sud, Orsay, France.,AP-HP Hôpital Paul Brousse, Department Oncogénétique, Villejuif, France
| | - Nelly Bosselut
- Inserm UMR-S 1193, Université Paris-Sud, Orsay, France.,AP-HP Hôpital Paul Brousse, Department Oncogénétique, Villejuif, France
| | - Giulia Hardoin
- Inserm UMR-S 1193, Université Paris-Sud, Orsay, France.,AP-HP Hôpital Paul Brousse, Department Oncogénétique, Villejuif, France
| | - Julie Vasseur
- Inserm UMR-S 1193, Université Paris-Sud, Orsay, France.,AP-HP Hôpital Paul Brousse, Department Oncogénétique, Villejuif, France
| | - Jocelyne Hamelin
- Inserm UMR-S 1193, Université Paris-Sud, Orsay, France.,AP-HP Hôpital Paul Brousse, Department Oncogénétique, Villejuif, France
| | - René Adam
- AP-HP Hôpital Paul Brousse, Centre Hépato-Biliaire, Villejuif, France.,Inserm UMR-S 985, Université Paris-Sud, Orsay, France
| | - Jean-François Morère
- Inserm UMR-S 1193, Université Paris-Sud, Orsay, France.,Department. Cancérologie, AP-HP Hôpital Paul Brousse, Villejuif, France
| | - Antoinette Lemoine
- Inserm UMR-S 1193, Université Paris-Sud, Orsay, France. .,AP-HP Hôpital Paul Brousse, Department Oncogénétique, Villejuif, France. .,Departement of Oncogenetics, APHP, GH Paris-Sud, Hôpital Paul Brousse, Inserm UMR-S 1193, Université Paris-Saclay, 14 Avenue Paul Vaillant Couturier, 94800, Villejuif, France.
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8
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Sebagh M, Bosselut N, Santos AD, Allard MA, Ruiz A, Saffroy R, Cherqui D, Vibert E, Castaing D, Adam R, Cunha AS, Lemoine A. Rare genetic heterogeneity within single tumor discovered for the first time in colorectal liver metastases after liver resection. Oncotarget 2018; 9:21921-21929. [PMID: 29774112 PMCID: PMC5955166 DOI: 10.18632/oncotarget.25119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 03/21/2018] [Indexed: 02/07/2023] Open
Abstract
Effective individualized treatment of patients with colorectal liver metastases (CLM) requires tumor genotyping, usually based on the analysis of one single sample per patient. Therapy failure may partially be explained by sampling errors and/or intratumoral genetic heterogeneity. We aimed to demonstrate intratumoral genetic heterogeneity in CLM and enable pathologists to select tumor tissue for genotyping. All the tumors of 86 patients who underwent liver resection for a single CLM were reviewed. Of the 86 patients, 66 patients received chemotherapy and 20 patients did not receive chemotherapy before liver resection. All the tumor areas sampled were analyzed for KRAS, BRAF, PIK3CA, and NRAS mutations. The mutational status was tested in 74 cases, 7 cases had no tumoral cells due to complete responses and 5 blocks were unavailable. Of the 59/74 CLM with > 1 sample, 56 showed the same mutational status between the samples. The remaining 3 cases (5% of all cases) showed genetic heterogeneity for KRAS in 2 and BRAF in 1 patient. Genetic heterogeneity correlated with lower rate of viable tumor cells (p=0.009) and higher rate of mucin pools (p=0.013). We demonstrate for the first time the existence of genetic intratumoral heterogeneity in 5% of CLM. In routine practice, this low incidence does not require the genotyping of additional tumor samples. The correlation between the genetic heterogeneity and some histological components of the CLM should be verified by further in situ mutation assay.
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Affiliation(s)
- Mylène Sebagh
- AP-HP Hôpital Paul Brousse, Laboratoire d'Anatomie Pathologique, Villejuif, France.,Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France
| | - Nelly Bosselut
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul Brousse, Département d'Oncogénétique, Villejuif, France
| | - Alexandre Dos Santos
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France
| | - Marc-Antoine Allard
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Villejuif, France.,Inserm, Unité 935, Université Paris-Saclay, Villejuif, France
| | - Aldrick Ruiz
- AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Villejuif, France.,University Medical Center Utrecht, Department of Surgery, Utrecht, The Netherlands
| | - Raphaël Saffroy
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul Brousse, Département d'Oncogénétique, Villejuif, France
| | - Daniel Cherqui
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Villejuif, France
| | - Eric Vibert
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Villejuif, France
| | - Denis Castaing
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Villejuif, France
| | - René Adam
- Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Villejuif, France.,Inserm, Unité 935, Université Paris-Saclay, Villejuif, France
| | - Antonio Sa Cunha
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Villejuif, France
| | - Antoinette Lemoine
- Inserm, Unité 1193, Université Paris-Saclay, Villejuif, France.,Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Villejuif, France.,DHU Hepatinov, Villejuif, France.,AP-HP Hôpital Paul Brousse, Département d'Oncogénétique, Villejuif, France
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9
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Sebagh M, Allard MA, Bosselut N, Dao M, Vibert E, Lewin M, Lemoine A, Cherqui D, Adam R, Sa Cunha A. Evidence of intermetastatic heterogeneity for pathological response and genetic mutations within colorectal liver metastases following preoperative chemotherapy. Oncotarget 2017; 7:21591-600. [PMID: 26943031 PMCID: PMC5008308 DOI: 10.18632/oncotarget.7809] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 01/29/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND In patients receiving preoperative chemotherapy, colorectal liver metastases (CLM) are expected to demonstrate a similar behaviour because of similar organ microenvironment and tumour cell chemosensitivity. We focused on the occurrence of pathological and genetic heterogeneity within CLM. METHODS Patients resected for multiple CLM between 2004 and 2011 after > three cycles of chemotherapy were included. Pathological heterogeneity was arbitrarily defined as a > 50% difference in the percentage of remaining tumour cells between individual CLM. In patients with pathological heterogeneity, the mutational genotyping (KRAS, NRAS, BRAF and PIK3CA) was determined from the most heterogeneous CLM. RESULTS Pathological heterogeneity was observed in 31 of 157 patients with multiple CLM (median = 4, range, 2-32) (19.7%). In 72.4% of them, we found a concordance of the mutation status between the paired CLM: both wild-type in 55%, and both mutated in 17.2%. We observed a discordance of the mutation status of 27.6% between CLM: one mutated and the other wild-type. The mutated CLM was the less florid one in 75% of patients with genetic heterogeneity. CONCLUSIONS Pathological heterogeneity is present in 19.7% of patients with multiple CLM. Genetic heterogeneity is present in 27.6% of patients with pathological heterogeneity. Heterogeneity could refine guide management for tissue sampling.
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Affiliation(s)
- Mylène Sebagh
- AP-HP Hôpital Paul Brousse, Department of Pathology, Villejuif, France.,Inserm U1193, Paris-Sud University, Villejuif, France
| | - Marc-Antoine Allard
- AP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France.,Inserm U935, Paris-Sud University, Villejuif, France
| | - Nelly Bosselut
- Inserm U1193, Paris-Sud University, Villejuif, France.,AP-HP Hôpital Paul Brousse, Department of Oncogenetics, Villejuif, France
| | - Myriam Dao
- AP-HP Hôpital Paul Brousse, Department of Pathology, Villejuif, France
| | - Eric Vibert
- Inserm U1193, Paris-Sud University, Villejuif, France.,AP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France
| | - Maïté Lewin
- AP-HP Hôpital Paul Brousse, Radiology, Villejuif, France
| | - Antoinette Lemoine
- Inserm U1193, Paris-Sud University, Villejuif, France.,AP-HP Hôpital Paul Brousse, Department of Oncogenetics, Villejuif, France
| | - Daniel Cherqui
- Inserm U1193, Paris-Sud University, Villejuif, France.,AP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France
| | - René Adam
- AP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France.,Inserm U935, Paris-Sud University, Villejuif, France
| | - Antonio Sa Cunha
- AP-HP Hôpital Paul Brousse, Hepatobiliary Centre, Villejuif, France.,Inserm U935, Paris-Sud University, Villejuif, France
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10
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Taibi L, Boyd A, Bosselut N, Bottero J, Guéchot J, Lacombe K, Lasnier E, Baudin B, Vaubourdolle M. Diagnostic accuracy of the Coopscore © to predict liver fibrosis in human immunodeficiency virus/hepatitis B virus co-infection. Ann Clin Biochem 2017; 55:236-243. [PMID: 28661201 DOI: 10.1177/0004563217707979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background Non-invasive methods for assessing liver fibrosis are increasingly used as an alternative to liver biopsy. Recently, a score-based biochemical blood test (Coopscore©) was developed in a cohort of patients chronically infected with hepatitis C virus, showing higher diagnostic performances than Fibrometer®, Fibrotest®, Hepascore® and Fibroscan™. Here, we assess its performance in patients co-infected with the human immunodeficiency virus and hepatitis B virus. Methods Ninety-seven human immunodeficiency virus/hepatitis B virus co-infected patients with liver biopsies were included from a previously described cohort. Histological fibrosis staging using METAVIR criteria was used as the reference. Coopscore©, Fibrotest®, Fibrometer®, Hepascore® and Zeng score were computed and compared with the Coopscore© using the Obuchowski index and area under the receiving operator characteristic curves. Results The distribution of liver fibrosis levels was as follows: F0-F1 ( n = 42), F2 ( n = 25), F3 ( n = 15) and F4 ( n = 15). The Obuchowski index was higher for Coopscore© (0.774) than Fibrometer® (0.668), Hepascore® (0.690) and Zeng scores (0.704) ( P < 0.05), reflecting a better ability to discriminate between fibrosis stages. Similarly, when predicting significant fibrosis (≥F2), the AUROC was significantly greater for the Coopscore© (0.836) than the Hepascore® (0.727) and Zeng scores (0.746), but not for the Fibrotest® (0.778, P = 0.14) or Fibrometer® (0.790, P = 0.19). The Coopscore© did not show a higher capacity than other scores to predict advanced fibrosis (≥F3) or cirrhosis (F4). Conclusions This study supports the diagnostic value of the Coospcore© in fibrosis staging among human immunodeficiency virus/hepatitis B virus co-infected patients, especially to predict significant fibrosis.
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Affiliation(s)
- Ludmia Taibi
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Anders Boyd
- 2 INSERM, UMR_S1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
| | - Nelly Bosselut
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France.,3 INSERM, UMR-S 938, F-75012, Paris, France
| | - Julie Bottero
- 4 Service des Maladies Infectieuses et Tropicales, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - Jérôme Guéchot
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Karine Lacombe
- 2 INSERM, UMR_S1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France.,5 Institut Pierre Louis d'Epidémiologie et de Santé Publique, Sorbonne Universités, Paris, France
| | - Elisabeth Lasnier
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Bruno Baudin
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Michel Vaubourdolle
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
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11
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Saffroy R, Morère JF, Bosselut N, Innominato PF, Hamelin J, Trédaniel J, Masse S, Dussaule-Duchatelle V, Balaton A, Validire P, Guettier C, Bouchahda M, Lemoine A. Impact of country of birth on genetic testing of metastatic lung adenocarcinomas in France: African women exhibit a mutational spectrum more similar to Asians than to Caucasians. Oncotarget 2017; 8:50792-50803. [PMID: 28881604 PMCID: PMC5584205 DOI: 10.18632/oncotarget.15132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 01/09/2017] [Indexed: 01/15/2023] Open
Abstract
Background Limited data are available on the prevalence of oncogenic driver mutations in Caucasian populations, and especially in Europeans. Aim To evaluate the targetable mutational spectra in unselected patients with lung adenocarcinoma in routine clinical practice from several French hospitals, using the same molecular platform. Patients and Methods Samples from 2,219 consecutive patients with histologically-proven advanced lung adenocarcinoma were centrally analysed at a referenced and certified diagnostic platform in order to test for activating and resistance mutations in EGFR, KRAS, BRAF, ERBB2 and PI3KCA. Demographic and clinical features were retrieved from the medical charts. Multivariate binary logistic regression was used to determine the independent predictive factors for the occurrence of specific mutations, in the whole study population or in selected subgroups. Findings The overall respective incidence of EGFR, KRAS, BRAF, ERBB2 and PI3KCA mutations was 10.5%, 0.9%, 25%, 1.5%, 2.1% and 1.4%, in our study sample including 87.4% white Caucasians, 10.8% Africans and 1.8% Asians; 60.6% men, 30.7% never smoker (median age: 68.3 years). Ethnicity was an independent predictor for EGFR, KRAS and ERBB2 gene abnormalities. In all cases, a significantly higher prevalence of targetable EGFR and ERBB2, and a lower prevalence of resistance KRAS mutations were observed in African women as compared to African men or Caucasians. Conclusions In real life conditions of routine genetic testing, we have identified subsets of patients with specific targetable activating somatic mutations according to ethnicity, who could preferentially benefit from anti-EGFR and anti-ERBB2 targeted therapies.
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Affiliation(s)
- Raphael Saffroy
- AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Biochiemistry and Oncogenetics, Platform Oncomolpath/INCa, Villejuif, France.,INSERM UMR-S 1193, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Jean-François Morère
- INSERM UMR-S 1193, Université Paris-Sud, Université Paris-Saclay, Villejuif, France.,AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Medical Oncology, Villejuif, France
| | - Nelly Bosselut
- AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Biochiemistry and Oncogenetics, Platform Oncomolpath/INCa, Villejuif, France.,INSERM UMR-S 1193, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Pasquale F Innominato
- AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Medical Oncology, Villejuif, France.,INSERM UMR-935, Université Paris-Sud, Hôpital Paul Brousse, Villejuif, France.,Cancer Chronotherapy Unit, Cancer Research Centre, Warwick Medical School, University of Warwick, Coventry, United Kingdom.,Department of Oncology, Queen Elizabeth Hospital Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Jocelyne Hamelin
- AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Biochiemistry and Oncogenetics, Platform Oncomolpath/INCa, Villejuif, France.,INSERM UMR-S 1193, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Jean Trédaniel
- Hôpital Saint Joseph, Department of Respiratory Medicine, Université Paris 5, Paris, France
| | - Sophie Masse
- Groupe Hospitalier Nord Essonne, Department of Pathology, Longjumeau, France
| | | | - André Balaton
- Hôpital Saint Joseph, Department of Pathology, Paris, France.,ACP Bievres-les Ulis, Department of Pathology, Les Ulis, France
| | - Pierre Validire
- Institut Mutualiste Montsouris, Department of Pathology, Paris, France
| | - Catherine Guettier
- AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Pathology, Platform Oncomolpath/INCa, Villejuif, France
| | - Mohamed Bouchahda
- AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Medical Oncology, Villejuif, France.,Ramsay-GDS Clinique du Mousseau, Department of Medical Oncology, Evry, France
| | - Antoinette Lemoine
- AP-HP, GH Paris-Sud, Hôpital Paul Brousse, Department of Biochiemistry and Oncogenetics, Platform Oncomolpath/INCa, Villejuif, France.,INSERM UMR-S 1193, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
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12
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Saffroy R, Suybeng V, Bosselut N, Hamelin J, Becker M, Pham P, Khoja C, Morère JF, Lemoine A. Ultra-sensitive mass spectrometry allows 33% increased detection of somatic EGFR T790M mutation in plasma cfDNA samples. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.11] [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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13
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Ruiz A, Sebagh M, Saffroy R, Allard MA, Bouvet De La Maisonneuve P, Bosselut N, Adam R, Lemoine A, Morere JF. Abstract P4-05-14: The PI3KCA mutations are frequent and remain along with recurrence of liver metastases from breast cancer in women who underwent up to 3 liver resections. Cancer Res 2015. [DOI: 10.1158/1538-7445.sabcs14-p4-05-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The Liver resection associated with anticancer and hormonal treatments for metastatic breast cancer results in improved patient survival. However, many patients have tumor recurrence. The frequently observed mutations in PIK3CA that have been associated with resistance to chemotherapy and to anti-HER2 or anti-estrogen therapies treatment, could be involved in the recurrence of liver metastases (and targeted in the future). Therefore, we have analyzed the incidence of the two major 'hot spot' mutations in the helical and catalytic domains of PI3KCA in the liver metastases from breast cancer (LMBC) isolated in a selected cohort of 20 women who underwent at least 2 liver resections with curative intent. Twelve of them had a third hepatectomy. The first hepatectomy was between 1 to 6 yrs after the diagnosis of primary tumors. A total of 73 LMBC were analyzed.
The characteristics of the LMBC at the first hepatectomy : the median age was 52 yrs (range: 30 to 64). Five patients had a solitary tumor whereas the others had up to 5 nodules. The tumor stages varied from stage IA to IIIA and were ductal tumors for 80% of them. Hormonal status varied from the negativity for the receptors to estrogen (ER), progesterone (PR) and HER2 (n=4), to the clearcut positivity ER (n=2), PR (n=3), HER2 (n=4). Out of 20 patients, 6 had LMBC carrying PI3KCA mutations (1 H1047R, 6 E545K). When LMBC were multinodular, all the nodules except one harbored the PI3KCA mutation.
The characteristics of the recurrent LMBC: out of the 6 LMBC with PI3KCA mutations, 4 recurred and underwent a third hepatectomy. One patient whose LMBC did not harbor any PI3KCA mutations at the first liver resection had mutant PI3KCA in the LMBC from the second to the fourth liver resection. All the nodules of the 5 women harbored the same PI3KCA mutation. In parallel, 7 women underwent a third liver resection with no PI3KCA mutations in any of the nodules analyzed. There was no relationship between the recurrence of LMBC with PI3KCA mutations and the surgical margins. The frequency of women whose LMBC carry PI3KCA mutations increased at the third hepatectomy
In conclusion, PI3KCA mutations are frequently observed in LMBC in all the nodules and persist along with the recurrence. However, PI3KCA could constitute a new target in the neoadjuvant setting before hepatectomy.
Citation Format: Archie Ruiz, Mylène Sebagh, Raphaël Saffroy, Marc-Antoine Allard, Philippe Bouvet De La Maisonneuve, Nelly Bosselut, René Adam, Antoinette Lemoine, Jean-François Morere. The PI3KCA mutations are frequent and remain along with recurrence of liver metastases from breast cancer in women who underwent up to 3 liver resections [abstract]. In: Proceedings of the Thirty-Seventh Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2014 Dec 9-13; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2015;75(9 Suppl):Abstract nr P4-05-14.
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Affiliation(s)
- Archie Ruiz
- 1Centre Hépato-Biliaire-Chirurgie Digestive, Hôpital Paul Brousse
| | | | | | - Marc-Antoine Allard
- 1Centre Hépato-Biliaire-Chirurgie Digestive, Hôpital Paul Brousse
- 3Hôpital Paul Brousse
| | | | | | - René Adam
- 1Centre Hépato-Biliaire-Chirurgie Digestive, Hôpital Paul Brousse
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14
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Lemoinne S, Cadoret A, Rautou PE, El Mourabit H, Ratziu V, Corpechot C, Rey C, Bosselut N, Barbu V, Wendum D, Feldmann G, Boulanger C, Henegar C, Housset C, Thabut D. Portal myofibroblasts promote vascular remodeling underlying cirrhosis formation through the release of microparticles. Hepatology 2015; 61:1041-55. [PMID: 25043701 DOI: 10.1002/hep.27318] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 07/10/2014] [Indexed: 12/19/2022]
Abstract
UNLABELLED Liver fibrosis expanding from portal tracts and vascular remodeling are determinant factors in the progression of liver diseases to cirrhosis. In the present study, we examined the potential contribution of portal myofibroblasts (PMFs) to the vascular changes leading to cirrhosis. The analyses of liver cells based on the transcriptome of rat PMFs, compared to hepatic stellate cell HSC-derived myofibroblasts in culture, identified collagen, type XV, alpha 1 (COL15A1) as a marker of PMFs. Normal liver contained rare COL15A1-immunoreactive cells adjacent to the bile ducts and canals of Hering in the portal area. A marked increase in COL15A1 expression occurred together with that of the endothelial marker, von Willebrand factor, in human and rat liver tissue, at advanced stages of fibrosis caused by either biliary or hepatocellular injury. In cirrhotic liver, COL15A1-expressing PMFs adopted a perivascular distribution outlining vascular capillaries proximal to reactive ductules, within large fibrotic septa. The effect of PMFs on endothelial cells (ECs) was evaluated by in vitro and in vivo angiogenesis assays. PMF-conditioned medium increased the migration and tubulogenesis of liver ECs as well as human umbilical vein ECs and triggered angiogenesis within Matrigel plugs in mice. In coculture, PMFs developed intercellular junctions with ECs and enhanced the formation of vascular structures. PMFs released vascular endothelial growth factor (VEGF)A-containing microparticles, which activated VEGF receptor 2 in ECs and largely mediated their proangiogenic effect. Cholangiocytes potentiated the angiogenic properties of PMFs by increasing VEGFA expression and microparticle shedding in these cells. CONCLUSION PMFs are key cells in hepatic vascular remodeling. They signal to ECs through VEGFA-laden microparticles and act as mural cells for newly formed vessels, driving scar progression from portal tracts into the parenchyma.
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Affiliation(s)
- Sara Lemoinne
- Sorbonne Universités, UPMC Université Paris 06, CDR Saint-Antoine and Institute of Cardiometabolism and Nutrition (ICAN), Paris, France; INSERM, UMR_S 938, Paris, France
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15
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Lemoine A, Saffroy R, Bosselut N, Lecorche E, Etessami R, Allard MA, Tredaniel J, Balaton A, Validire P, Morere JF. Abstract 2231: The prevalence of EGFR and KRAS mutations in a population of African immigrants in France is closer to that of Asian populations than to white Europeans. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-2231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The choice of treatment for patients with NSCLC relies on the EGFR and KRAS mutational status. Previous studies have reported differences in prevalence of mutations between Asiatics, Hispanics and Caucasians. However, there is few data with respect to the frequencies of EGFR and KRAS mutations in patients originated from Africa, who represent the largest immigrant population in France.
Between May 2011 and November 2013, a mutational analysis for KRAS and EGRF has been performed in tumor samples from 1,973 consecutive patients with NSCLC at a single oncogenetic platform. Demographic and clinical data of all these patients were extracted from their electronic medical record and analyzed.
Our study population included 1,739 (88%) white Europeans, 204 (10%) patients from Africa and 30 (2%) patients from Asia (mostly from Vietnam or Cambodge).
As expected, the higher prevalence of EGFR mutations was found in Asiatic women (50%), the lower was observed in Caucasian women population (17%, p<0.001). This low frequency of EGFR mutations has already been reported in other European populations. Surprisingly, EGFR mutations rate was as high as 32% in African women patients (p<0.001), whereas African men exhibited a very low frequency of EGFR mutations (5%, p<0.001) as well as the French non immigrant patients (6%).
KRAS mutation rate was higher among white European (26%) than Asiatic (10%) or African (10%) patients. Although KRAS mutation rate did not differ by sex in white Europeans (men 25% versus women 27%, respectively), it was 3 fold more frequent in men than in women among African (19% versus 5%, respectively, p<0.001) and Asiatic patients.Therefore EGFR or KRAS mutation rates in African immigrant population in France are closer to those observed in Asians or even Hispanics, than in Caucasians. These frequencies also differ from those reported in African Americans. The ancestral and recent migration of populations as well as social habits could explain these results.
Citation Format: Antoinette Lemoine, Raphael Saffroy, Nelly Bosselut, Emmanuel Lecorche, Reza Etessami, Marc A. Allard, Jean Tredaniel, Andre Balaton, Pierre Validire, Jean F. Morere. The prevalence of EGFR and KRAS mutations in a population of African immigrants in France is closer to that of Asian populations than to white Europeans. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2231. doi:10.1158/1538-7445.AM2014-2231
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Affiliation(s)
- Antoinette Lemoine
- 1Oncogenetic Platform, Paul Brousse Hospital GH Paris Sud, Villejuif, France
| | - Raphael Saffroy
- 1Oncogenetic Platform, Paul Brousse Hospital GH Paris Sud, Villejuif, France
| | - Nelly Bosselut
- 1Oncogenetic Platform, Paul Brousse Hospital GH Paris Sud, Villejuif, France
| | - Emmanuel Lecorche
- 1Oncogenetic Platform, Paul Brousse Hospital GH Paris Sud, Villejuif, France
| | - Reza Etessami
- 2Oncology Dpt., Paul Brousse Hospital, GH Paris Sud, Villejuif, France
| | - Marc A. Allard
- 1Oncogenetic Platform, Paul Brousse Hospital GH Paris Sud, Villejuif, France
| | | | | | | | - Jean F. Morere
- 2Oncology Dpt., Paul Brousse Hospital, GH Paris Sud, Villejuif, France
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16
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Bosselut N, Taibi L, Guéchot J, Zarski JP, Sturm N, Gelineau MC, Poggi B, Thoret S, Lasnier E, Baudin B, Housset C, Vaubourdolle M. Including osteoprotegerin and collagen IV in a score-based blood test for liver fibrosis increases diagnostic accuracy. Clin Chim Acta 2012; 415:63-8. [PMID: 23022619 DOI: 10.1016/j.cca.2012.09.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 09/18/2012] [Accepted: 09/19/2012] [Indexed: 01/06/2023]
Abstract
BACKGROUND Noninvasive methods for liver fibrosis evaluation in chronic liver diseases have been recently developed, i.e. transient elastography (Fibroscan™) and blood tests (Fibrometer®, Fibrotest®, and Hepascore®). In this study, we aimed to design a new score in chronic hepatitis C (CHC) by selecting blood markers in a large panel and we compared its diagnostic performance with those of other noninvasive methods. METHODS Sixteen blood tests were performed in 306 untreated CHC patients included in a multicenter prospective study (ANRS HC EP 23 Fibrostar) using METAVIR histological fibrosis stage as reference. The new score was constructed by non linear regression using the most accurate biomarkers. RESULTS Five markers (alpha-2-macroglobulin, apolipoprotein-A1, AST, collagen IV and osteoprotegerin) were included in the new function called Coopscore©. Using the Obuchowski Index, Coopscore© shows higher diagnostic performances than for Fibrometer®, Fibrotest®, Hepascore® and Fibroscan™ in CHC. Association between Fibroscan™ and Coopscore© might avoid 68% of liver biopsies for the diagnosis of significant fibrosis. CONCLUSION Coopscore© provides higher accuracy than other noninvasive methods for the diagnosis of liver fibrosis in CHC. The association of Coopscore© with Fibroscan™ increases its predictive value.
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Affiliation(s)
- Nelly Bosselut
- Laboratoire de Biochimie A, Hôpitaux Universitaires Paris-Est, site Saint-Antoine, AP-HP, F-75012, Paris, France.
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17
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Bosselut N, Housset C, Marcelo P, Rey C, Burmester T, Vinh J, Vaubourdolle M, Cadoret A, Baudin B. Distinct proteomic features of two fibrogenic liver cell populations: Hepatic stellate cells and portal myofibroblasts. Proteomics Clin Appl 2010. [DOI: 10.1002/prca.201090036] [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: 11/11/2022]
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18
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Bosselut N, Housset C, Marcelo P, Rey C, Burmester T, Vinh J, Vaubourdolle M, Cadoret A, Baudin B. Distinct proteomic features of two fibrogenic liver cell populations: hepatic stellate cells and portal myofibroblasts. Proteomics 2010; 10:1017-28. [PMID: 20049859 DOI: 10.1002/pmic.200900257] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In chronic liver diseases, the accumulation of extracellular matrix leading to fibrosis is caused by myofibroblasts, the origins of which are debatable. We performed a comparative proteomic study to identify markers and gain insight into distinct functions of myofibroblasts derived either from hepatic stellate cells (HSCs) or from portal mesenchymal cells. After isolation from normal liver and culture in similar conditions, myofibroblastic HSCs (MF-HSCs) presented enlarged cytoplasms whereas portal myofibroblasts (PMFs) were more proliferative, and formed more stress fibers. The two cell types were subjected to comparative analyses by 2-D MS/MS. Six proteins were overexpressed in PMFs, with myofibroblast-related typical functions. Among them, cofilin-1 showed the greatest difference in expression and a lower pI than expected. Immunoblot demonstrated higher levels of phosphorylation, a modification of the protein implicated in stress fiber formation. Eleven proteins, mostly involved in stress response, were overexpressed in MF-HSCs. Cytoglobin had the highest level of overexpression, as confirmed by reverse transcription quantitative real-time PCR, immunoblot and immunocytochemical analyses. These results identify cytoglobin as the best marker for distinguishing MF-HSCs from PMFs and suggest different functions for the two cell populations in the liver wound healing response, with a prominent role for PMFs in scar formation.
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Affiliation(s)
- Nelly Bosselut
- AP-HP, Hôpital Saint-Antoine, Biochimie A, Paris, France
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Abstract
We describe a protocol for easy isolation and culture of human umbilical vein endothelial cells (HUVECs) to supply every researcher with a method that can be applied in cell biology laboratories with minimum equipment. Endothelial cells (ECs) are isolated from umbilical vein vascular wall by a collagenase treatment, then seeded on fibronectin-coated plates and cultured in a medium with Earles' salts and fetal calf serum (FCS), but without growth factor supplementation, for 7 days in a 37 degrees C-5% CO2 incubator. Cell confluency can be monitored by phase-contrast microscopy; ECs can be characterized using cell surface or intracellular markers and checked for contamination. Various protocols can be applied to HUVECs, from simple harvesting to a particular solubilization of proteins for proteomic analysis.
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Affiliation(s)
- Bruno Baudin
- Laboratoire de Biochimie et Biologie Cellulaire-UPRES JE 2493, UFR de Pharmacie, Université Paris-Sud 11, 3 rue Jean-Baptiste Clément, 92290 Châtenay-Malabry, France.
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Claverie M, Dirlewanger E, Cosson P, Bosselut N, Lecouls AC, Voisin R, Kleinhentz M, Lafargue B, Caboche M, Chalhoub B, Esmenjaud D. High-resolution mapping and chromosome landing at the root-know nematode resistance locus Ma from Myrobalan plum using a large-insert BAC DNA library. Theor Appl Genet 2004; 109:1318-1327. [PMID: 15322755 DOI: 10.1007/s00122-004-1749-y] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The Ma gene for root-knot nematode (RKN)resistance from Myrobalan plum (Prunus cerasifera L.)confers a complete-spectrum and a heat-stable resistance to Meloidogvne spp., conversely to Mi-I from tomato,which has a more restricted spectrum and a reduced efficiency at high temperature. This gene was identified from a perennial self-incompatible near-wild rootstock species and lies in cosegregation with the SCAR marker SCAFLP2 on the Prunus linkage group 7 in a 2.3 cM interval between the SCAR SCAL19 and SSR pchgms6 markers. We initiated a map-based cloning of Ma and report here the strategy that rapidly led to fine mapping and direct chromosome landing at the locus. Three pairs of bulks, totaling 90 individuals from half-sibling progenies derived from the Ma-heterozygous resistant accession P.2175, were constructed using mapping data, and saturation of the Ma region was performed by bulked segregant analysis (BSA) of 320 AFLP primer pair combinations. The closest three AFLP markers were transformed into codominant SCARs or CAPS designatedSCAFLP3, SCAFLP4 and SCAFLP5. By completing the mapping population up to 1,332 offspring from P.2175,Ma and SCAFLP2 were mapped in a 0.8 cM interval between SCAFLP3 and SCAFLP4. A large-insert bacterial artificial chromosome (BAC) DNA library of P.2175,totaling 30,720 clones with a mean insert size of 145 kb and a 14-15x Prunus haploid genome coverage was constructed and used to land on the Ma spanning interval with few BAC clones. As P.2175 is heterozygous for the gene, we constructed the resistant and susceptible physical contigs by PCR screening of the library with codominant markers. Additional microsatellite markers were then designed from BAC subcloning or BAC end sequencing. In the resistant contig, a single 280 kb BAC clone was shown to carry the Ma gene; this BAC contains two flanking markers on each side of the gene as well as two cosegregating markers. These results should allow future cloning of the Ma gene in this perennial species.
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Affiliation(s)
- M Claverie
- UMR Interactions Plantes-Microorganismes et Santé Végétale, Equipe de Nématologie, Institut National de la Recherche Agronomique, Sophia Antipolis, France
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21
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Dirlewanger E, Cosson P, Howad W, Capdeville G, Bosselut N, Claverie M, Voisin R, Poizat C, Lafargue B, Baron O, Laigret F, Kleinhentz M, Arús P, Esmenjaud D. Microsatellite genetic linkage maps of myrobalan plum and an almond-peach hybrid--location of root-knot nematode resistance genes. Theor Appl Genet 2004; 109:827-38. [PMID: 15241595 DOI: 10.1007/s00122-004-1694-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2003] [Accepted: 03/29/2004] [Indexed: 05/23/2023]
Abstract
Inheritance and linkage studies were carried out with microsatellite [or simple sequence repeat (SSR)] markers in a F(1) progeny including 101 individuals of a cross between Myrobalan plum ( Prunus cerasifera Ehrh) clone P.2175 and the almond (Prunus dulcis Mill.)-peach ( Prunus persica L. Batsch) hybrid clone GN22 ["Garfi" (G) almond x "Nemared" (N) peach]. This three-way interspecific Prunus progeny was produced in order to associate high root-knot nematode (RKN) resistances from Myrobalan and peach with other favorable traits for Prunus rootstocks from plum, peach and almond. The RKN resistance genes, Ma from the Myrobalan plum clone P.2175 and R(MiaNem) from the 'N' peach, are each heterozygous in the parents P.2175 and GN22, respectively. Two hundred and seventy seven Prunus SSRs were tested for their polymorphism. One genetic map was constructed for each parent according to the "double pseudo-testcross" analysis model. The Ma gene and 93 markers [two sequence characterized amplified regions (SCARs), 91 SSRs] were placed on the P.2175 Myrobalan map covering 524.8 cM. The R(MiaNem) gene, the Gr gene controlling the color of peach leaves, and 166 markers (one SCAR, 165 SSRs) were mapped to seven linkage groups instead of the expected eight in Prunus. Markers belonging to groups 6 and 8 in previous maps formed a single group in the GN22 map. A reciprocal translocation, already reported in a G x N F(2), was detected near the Gr gene. By separating markers from linkage groups 6 and 8 from the GN22 map, it was possible to compare the eight homologous linkage groups between the two maps using the 68 SSR markers heterozygous in both parents (anchor loci). All but one of these 68 anchor markers are in the same order in the Myrobalan plum map and in the almond-peach map, as expected from the high level of synteny within Prunus. The Ma and R(MiaNem)genes confirmed their previous location in the Myrobalan linkage group 7 and in the GN22 linkage group 2, respectively. Using a GN22 F(2) progeny of 78 individuals, a microsatellite map of linkage group 2 was also constructed and provided additional evidence for the telomeric position of R(MiaNem) in group 2 of the Prunus genome.
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Affiliation(s)
- E Dirlewanger
- INRA, Unité de Recherches sur les Espèces Fruitières et la Vigne (UREFV), B.P. 81, 33883 Villenave d'Ornon Cedex, France.
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Claverie M, Bosselut N, Lecouls AC, Voisin R, Lafargue B, Poizat C, Kleinhentz M, Laigret F, Dirlewanger E, Esmenjaud D. Location of independent root-knot nematode resistance genes in plum and peach. Theor Appl Genet 2004; 108:765-773. [PMID: 14569426 DOI: 10.1007/s00122-003-1463-1] [Citation(s) in RCA: 16] [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] [Subscribe] [Scholar Register] [Received: 03/26/2003] [Accepted: 08/18/2003] [Indexed: 05/24/2023]
Abstract
Prunus species express different ranges and levels of resistance to the root-knot nematodes (RKN) Meloidogyne spp. In Myrobalan plum ( Prunus cerasifera), the dominant Ma gene confers a high-level and wide-spectrum resistance to the predominant RKN, Meloidogyne arenaria, Meloidogyne incognita, Meloidogyne javanica and the isolate Meloidogyne sp. Florida which overcomes the resistance of the Amygdalus sources. In Japanese plum ( Prunus salicina), a similar wide-spectrum dominant resistance gene, termed R(jap), has been hypothesized from an intraspecific segregating cross. In peach, two crosses segregating for resistance to both M. incognita and M. arenaria were used to identify single genes that each control both RKN species in the Shalil ( R(Mia557)) and Nemared ( R(MiaNem)) sources. Localisation of these genes was made possible using the RFLP and SSR- saturated reference Prunus map TxE, combined with a BSA approach applied to some of the genes. The Ma1 allele carried by the Myrobalan plum accession P.2175 was localised on the linkage group 7 at an approximate distance of 2 cM from the SSR marker pchgms6. In the Japanese plum accession J.222, the gene R(jap) was mapped at the same position in co-segregation with the SSR markers pchgms6 and CPPCT022. The peach genes R(Mia557) and R(MiaNem), carried by two a priori unrelated resistance sources, were co-localized in a subtelomeric position on linkage group 2. This location was different from the more centromeric position previously proposed by Lu et al. (1999) for the resistance gene Mij to M. incognita and M. javanica in Nemared, near the SSR pchgms1 and the STS EAA/MCAT10. By contrast, R(Mia557) and R(MiaNem) were flanked by STS markers obtained by Yamamoto and Hayashi (2002) for the resistance gene Mia to M. incognita in the Japanese peach source Juseitou. Concordant results for the three independent sources, Shalil, Nemared and Juseitou, suggest that these peach RKN sources share at least one major gene resistance to M. incognita located in this subtelomeric position. We showed that plum and peach genes are independent and, thus, can be pyramided into interspecific hybrid rootstocks based on the plum and peach species.
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Affiliation(s)
- M Claverie
- Unité "Interactions Plantes-Microorganismes et Santé Végétale", Equipe de Nématologie, Institut National de la Recherche Agronomique, B.P. 2078, 06606 Antibes Cedex, France
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