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The Global Standard Stratotype-section and Point （GSSP） for the base of the Eocene Series in the Dababiya section （Egypt）

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Episodes 2007年第4期30卷 271-286页

作者： Marie-Pierre Aubry Khaled Ouda christian dupuis William A., Berggren John A. Van Couvering 无 Department of Earth and Planetary Sciences Rutgers University 610 Taylor Road Piscataway New Jersey 08554 USA8 Department of Geology University of Assiut Assiut Egypt Géologie Fondamentale et Appliquée Mons PolytechnicsRue de Houdain 9 B-7000 Mons Belgium The Micropaleontology Project 256 Fifth Avenue New York NY 10001 USA the Members of the Working Group on the Paleocene/Eocene Boundary

The GSSP for the base of the Eocene Series is located at 1.58 m above the base of Section DBH in the Dababiya Quarry, on the east bank of the Nile River, about 35 km south of Luxor, Egypt. It is the base of Bed 1 of the Dababyia Quarry Beds of the El Mahmiya Member of the Esna Formation, interpreted as having recorded the basal inflection of the carbon isotope excursion （CIE）, a prominent （3 to 5%） geochemical signature which is recorded in marine （deep and shallow） and terrestrial settings around the world. The Paleocene/Eocene boundary is thus truly a globally correlatable chronostratigraphic level.

关键词：层型断面始新世第三纪下层埃及

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EGFR Expression Is Unreliable to Decide for Cetuximab Treatment in Patients with Metastatic Colorectal Cancer: Results from “ERBITUX-OUEST”

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Open Journal of Internal Medicine 2016年第2期6卷 56-67页

作者： Jean-Philippe Metges Erick Gamelin Alain Volant Olivier Capitain Jean-François Ramée Jean-Luc Raoul Jean-Yves Douillard Pierre-Luc Etienne Isabelle Cumin Olivier dupuis Roger Faroux Marie-Aude Coulon Philippe Deguiral Karine Bideau Nacr Eddine Achour Alain Gourlaouen Corinne Alleaume Annie Wdowik Laurent Miglianico Yann Touchefeu Vincent Klein Alain Penchet Ludovic Rosenfeld Daniel Martin Claire Stampfli Jean-Jacques Auger Alain Bargain Murielle Broyer-Petit Jérome Chettrit Louis-Rémi De Ybarlucea Serge Eloit Pierre Marie Girardot Nathalie Heresbach christian Laboisse Eric Lavoine Gilles Lemasson Claire Magois Sophie Michalak Norbert Padilla Joseph Politis Frédéric Staroz Bruno Turlin Arnaud Uguen Viorel Vasiliu Véronique Verriele Fanny Marhuenda Delphine Déniel Lagadec christian Riché Françoise Grudé Observatoire dédié au Cancer des régions Bretagne et Pays de la Loire France Centre Hospitalier Régional Universitaire (CHRU) Brest France Institut de Cancérologie de l’Ouest (ICO) Paul Papin Angers France Centre Catherine de Sienne Nantes France CRLCC Eugène Marquis Rennes France ICO René Gauducheau Nantes France Centre CARIO-HCPA Plérin France Centre Hospitalier Bretagne Sud (CHBS) Lorient France Clinique Victor Hugo Le Mans France Centre Hospitalier Départemental (CHD) La Roche-sur-Yon France CH Le Mans France Clinique Mutualiste de l’Estuaire Saint-Nazaire France CHIC Quimper France Clinique Pasteur Lanroze Brest France CH MORLAIX France CH Saint-Brieuc France CHBA Vannes France CHP Saint-Grégoire France CHU Nantes France Hopital Privé Océane Vannes France Clinique Saint-Michel et Sainte-Anne Quimper France Pole Santé Sarthe et Loire La Flèche France Polyclinique du Maine Laval France Polyclinique Sud Quimper France CH Laval France Polyclinique Cesson Sévigné France Laboratoire d’anatomie et de cytologie pathologiques Cholet France Cabinet d’anatomie et de cytologie pathologiques Saint-Malo France Laboratoire d’anatomie et de cytologie pathologiques Lorient France Institut d’histopathologie Nantes France Laboratoire de Pathologie Médicale Laval France ARMOR Pathologie Plérin France Laboratoire d’anatomie et de cytologie pathologiques Rennes France Laboratoire d’anatomie et de cytologie pathologiques Angers France Laboratoire Analyses Biologie Glasgow Brest France CHU Angers France Centre d’anatomie et de cytologie pathologiques Le Mans France Cabinet d’anatomie et de cytologie pathologiques Vannes France Laboratoire d’anatomie et de cytologie pathologiques Quimper France CHU Rennes France

Purpose: Although controversial, assessment of epidermal growth factor receptor (EGFR) expression is required for the approved indications of Cetuximab in metastatic colorectal cancer (mCRC). With the objective of improving patient selection, “ERBITUX-OUEST” study aimed at analyzing EGFR status in a large cohort of mCRC patients who received cetuximab without preliminary EGFR screening, and assessing the correlation between EGFR status and response to treatment retrospectively. Patients and methods: 332 patients treated with Irinotecan Cetuximab based regimen after progression on irinotecan or oxaliplatin therapy were included. EGFR status was assessed using three available immunohistochemistry (IHC) tests and in situ hybridization in case of negativity. Clinical outcomes of EGFR-positive and EGFR-non-detected (or considered as negative with at least one test) patients were compared. Results: Of the 332 samples centrally screened, 194 were classified as full-positive (i.e., EGFR-positive for all three tests), 86 as full-negative, and 52 as discordant. One third of the 131 negative samples with FDA approved test should be reclassified as positive with at least one of the two others tests. Regarding results from FDA approved test only, neither objective response rate (ORR), progression-free survival (PFS) nor overall survival (OS) differed significantly between EGFR-negative and EGFR-positive patients (P = 0.788, 0.326 and 0.888, respectively). Similarly, comparison of full-negative to other groups did not show any significant difference in terms of ORR (P = 0.507), PFS (P = 0.222) or OS (P = 0.686). Conclusion: These data strongly argue against mCRC patients selection for Cetuximab treatment based on EGFR expression as measured by currently available IHC technics.

关键词： Metastatic Colorectal Cancer Cetuximab EGFR Expression

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