21 results match your criteria: "Centre de Lutte contre le cancer Henri Becquerel[Affiliation]"

Supporting children of affected parents by cancer is challenging whether for patients, families and healthcare teams. Several care methods have been developed to support these children (e.g.

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[Contributions of molecular biology to the management of colorectal cancer].

Rev Prat

April 2024

Service d'hépatogastroentérologie, CHU de Rouen, France. Université de médecine de Rouen, France. Service d'oncologie médicale, centre de lutte contre le cancer Henri-Becquerel, Rouen, France.

CONTRIBUTIONS OF MOLECULAR BIOLOGY TO THE MANAGEMENT OF COLORECTAL CANCER. Colorectal cancer (CRC) is a major public health problem affecting almost 43.000 people a year and causing 17.

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Central nervous system vasculitis in VEXAS syndrome: A rare involvemen.

Clin Neurol Neurosurg

July 2024

Service de médecine interne, Hôpital Saint Antoine, Paris, France.

Introduction: VEXAS (Vacuoles, E1 Enzyme, X-linked, autoinflammatory, Somatic) syndrome is a recently described severe adult-onset autoinflammatory disorder mediated by X-linked gene UBA1 somatic mutations, responsible of recurrent fever, skin involvement, chondritis, macrocytic anemia and inflammatory syndrome. Neurological manifestations are rarely described, and predominantly involve peripheral nervous system (PNS) impairment.

Results: We report the first central nervous system (CNS) vasculitis in VEXAS syndrome, characterized by headache, cognitive dysfunction and focal signs (cerebellar ataxia).

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Exportin 1 (XPO1) is the main nuclear export receptor that controls the subcellular trafficking and the functions of major regulatory proteins. XPO1 is overexpressed in various cancers and small inhibitors of nuclear export (SINEs) have been developed to inhibit XPO1. In primary mediastinal B-cell lymphoma (PMBL) and classical Hodgkin's lymphoma (cHL), the XPO1 gene may be mutated on one nucleotide and encodes the mutant XPO1 .

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Article Synopsis
  • The study explored the role of cell-free DNA (cfDNA) and circulating tumor DNA (ctDNA) in monitoring treatment responses in patients with newly diagnosed glioblastoma and gliosarcoma.
  • A significant decrease in cfDNA levels was observed from baseline to before treatment, with an increase in patients experiencing disease progression, but this did not correlate with survival outcomes.
  • ctDNA was detected in only 3.8% of the patients, specifically in those with gliosarcoma, indicating limited utility in this group.
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The gene encodes exportin 1 (XPO1) that controls the nuclear export of cargo proteins and RNAs. Almost 25% of primary mediastinal B-cell lymphoma (PMBL) and classical Hodgkin lymphoma (cHL) cases harboured a recurrent point mutation (NM_003400, chr2:g61718472C>T) resulting in the E571K substitution within the hydrophobic groove of the protein, the site of cargo binding. We investigated the impact of the mutation using PMBL/cHL cells having various statuses and CRISPR-Cas9-edited cells in which the E571K mutation was either introduced or knocked-out.

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[The evolving career profile of radiation therapists].

Cancer Radiother

October 2020

Département de radiothérapie, centre de lutte contre le cancer Henri-Becquerel, 1 rue d'Amiens, 76038 Rouen, France. Electronic address:

Over the last few years, the radiation therapist profession has undergone major developments. In radiotherapy, the teams, and their organization as well as the techniques have changed, however always with the goal of improving treatment quality for patients. Throughout interviews, this article offers to show three missions that have been assigned to French radiation therapists, such as the initial consultation, the role of the radiation therapist with the linear accelerator with onboard MRI, and paramedical research.

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Severe hypoxia [oxygen partial pressure (pO) below 5-10 mmHg] is more frequent in glioblastoma multiforme (GBM) compared to lower-grade gliomas. Seminal studies in the 1950s demonstrated that hypoxia was associated with increased resistance to low-linear energy transfer (LET) ionizing radiation. In experimental conditions, the total radiation dose has to be multiplied by a factor of 3 to achieve the same cell lethality in anoxic situations.

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Clonal chromosome abnormalities in Philadelphia-negative cells could concern chronic myeloid leukemia patients treated by tyrosine kinase inhibitors. The European LeukemiaNet distinguishes -7/del(7q) abnormalities as a "warning". However, the impact of clonal chromosome abnormalities, and specifically those of -7/del(7q), in Philadelphia-negative cells on clinical outcomes is unclear and based on case-reports showing morphological dysplasia and increased risk of acute myeloid leukemia, suggesting the coexistence of chronic myeloid leukemia and high-risk myelodysplastic syndrome.

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Diagnosis-to-Treatment Interval Is an Important Clinical Factor in Newly Diagnosed Diffuse Large B-Cell Lymphoma and Has Implication for Bias in Clinical Trials.

J Clin Oncol

June 2018

Matthew J. Maurer, Thomas M. Habermann, Carrie A. Thompson, Cristine Allmer, Patrick B. Johnston, Ivana N. Micallef, David J. Inwards, William R. Macon, Andrew L. Feldman, Susan L. Slager, Stephen M. Ansell, James R. Cerhan, Thomas E. Witzig, and Grzegorz S. Nowakowski, Mayo Clinic, Rochester, MN; Hervé Ghesquières and Gilles A. Salles, Université Claude Bernard, Lyon; Jean-Philippe Jais, Richard Delarue, Thierry J. Molina, Hopital Necker, Paris; Corinne Haioun, Groupe Hospitalier Mondor, Créteil; Frederic Peyrade, Centre Antoine Lacassagne, Nice; Olivier Fitoussi, Polyclinique Bordeaux Nord-Aquitaine, Bordeaux; Hervé Tilly, Centre de lutte Contre le Cancer Henri Becquerel, Rouen, France; Brian K. Link, Umar Farooq, Sergei Syrbu, and George J. Weiner, University of Iowa, Iowa City, IA; and Nicolas Ketterer, Clinique Bois-Cerf, Lausanne, Switzerland.

Purpose Selection bias in clinical trials has consequences for scientific validity and applicability of study results to the general population. There is concern that patients with clinically aggressive disease may not have enrolled in recent diffuse large B-cell lymphoma (DLBCL) trials due to the consent process and the inability to delay therapy for eligibility evaluation. We have examined the diagnosis-to-treatment interval (DTI) and its association with clinical factors and outcome in a clinic-based observational cohort of patients with DLBCL from the United States.

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Chronic lymphocytic leukemia (CLL) with 17p deletion (17p-) is associated with a lack of response to standard treatment and thus the worst possible clinical outcome. Various chromosomal abnormalities (including unbalanced translocations, deletions, ring chromosomes and isochromosomes) result in the loss of 17p and one copy of the TP53 gene. The objective of the present study was to determine whether the type of chromosomal abnormality leading to 17p- and the additional aberrations influenced the prognosis in a series of 195 patients with 17p-CLL.

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Background: Mantle cell lymphoma (MCL) is a B-cell hemopathy characterized by the t(11;14) translocation and the aberrant overexpression of cyclin D1. This results in an unrestrained cell proliferation. Other genetic alterations are common in MCL cells such as SOX11 expression, mutations of ATM and/or TP53 genes, activation of the NF-κB signaling pathway and NOTCH receptors.

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Article Synopsis
  • Non-Hodgkin's lymphomas encompass various disorders, with the 2008 WHO classification emphasizing the importance of a multidisciplinary approach, integrating cytogenetics for diagnosis and understanding clonality.
  • Recent developments have led to the identification of new provisional entities, like BCLU, highlighting the need for karyotype analysis to differentiate between similar lymphoid diseases.
  • Advances in karyotyping techniques and the use of next-generation sequencing are enhancing the diagnostic process and revealing key oncogenic mechanisms in these malignancies, underscoring the role of molecular biomarkers in treatment decisions.
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[Role of functional imaging in the definition of target volumes for lung cancer radiotherapy].

Cancer Radiother

October 2016

Département de médecine nucléaire, centre de lutte contre le cancer Henri-Becquerel, rue d'Amiens, 76000 Rouen, France; Laboratoire QuantIF, EA4108-Litis, FR CNRS 3638, 1, rue d'Amiens, 76000 Rouen, France.

Article Synopsis
  • Functional imaging with PET can enhance lung cancer radiotherapy by enabling more precise dose delivery.
  • Only FDG PET-CT is currently validated for staging and planning in lung cancer treatment.
  • Further research is needed to refine segmentation methods, explore "dose painting" techniques, and assess the benefits of adjusting treatment plans based on PET scans taken during therapy.
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Cytogenetic place in managing myelodysplastic syndromes: an update by the Groupe francophone de cytogénétique hématologique (GFCH).

Ann Biol Clin (Paris)

October 2016

Laboratoire de cytogénétique et de biologie moléculaire, Service d'hématologie biologique, CBPAS, GHS, Hospices civils de Lyon, Pierre-Bénite, France.

The myelodysplastic syndromes (MDS) are preleukemic diseases of elderly patients characterized by defective maturation of clonal hematopoietic progenitor cells resulting in peripheral blood cytopenias. Clonal chromosomal abnormalities are heterogeneous and can be detected in less than 50% of patients with de novo MDS and more frequently in secondary MDS (up to 80%). The karyotype plays an important role in the pathogenesis, diagnosis, and prognosis to evaluate the risk of leukemic transformation and, more recently, in treatment allocation.

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Effect of lenalidomide treatment on clonal architecture of myelodysplastic syndromes without 5q deletion.

Blood

February 2016

Assistance Publique-Hôpitaux de Paris, Service d'Hématologie Biologique, Hôpitaux Universitaires Paris Centre, Paris, France; Institut Cochin, INSERM U1016, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8104, Université Paris Descartes, Paris, France;

Non-del(5q) transfusion-dependent low/intermediate-1 myelodysplastic syndrome (MDS) patients achieve an erythroid response with lenalidomide in 25% of cases. Addition of an erythropoiesis-stimulating agent could improve response rate. The impact of recurrent somatic mutations identified in the diseased clone in response to lenalidomide and the drug's effects on clonal evolution remain unknown.

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[Benefits of functional imaging in radiotherapy].

Cancer Radiother

October 2015

Département de médecine nucléaire, centre de lutte contre le cancer Henri-Becquerel, 1, rue d'Amiens, 76000 Rouen, France; Département de radiothérapie, centre de lutte contre le cancer Henri-Becquerel, rue d'Amiens, 76000 Rouen, France; FR CNRS 3638, laboratoire QuantIF (EA4108-Litis), rue d'Amiens, 76000 Rouen, France.

Functional imaging with positron emission tomography (PET) is interesting to optimize radiotherapy planning, and probably to perform dose redistribution in many cancers. However, in 2015, fluorodeoxyglucose (FDG)-PET is validated only for therapy planning for lung cancer. The interest of dose painting, PET in non-lung cancers, the interest of other tracers (even PET hypoxia tracers), DW-MRI, and PET-MR for radiotherapy needs to be demonstrated in prospective multicentric phase III studies on large series of patients.

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Treatment outcomes for older patients with acute myeloid leukemia (AML) have remained dismal. This randomized, phase 2 trial in AML patients not considered suitable for intensive induction therapy compared low-dose cytarabine (LDAC) with or without volasertib, a highly potent and selective inhibitor of polo-like kinases. Eighty-seven patients (median age 75 years) received LDAC 20 mg twice daily subcutaneously days 1-10 or LDAC + volasertib 350 mg IV days 1 + 15 every 4 weeks.

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Fusarium species are actually the second most common pathogenic mould in immunocompromised patients, and it is difficult to treat such fusarial infections with current antifungal agents. We report the case of a 53-year-old woman with Philadelphia-positive acute lymphoblastic leukaemia. During induction chemotherapy with febrile neutropenia, she developed a disseminated fusariosis, with persistent fever refractory to antibacterial agents and caspofungin (as empirical therapy), painful skin lesions and respiratory impairment.

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Article Synopsis
  • Pleural lymphomas can develop as a complication of long-standing pyothorax from pulmonary tuberculosis, primarily reported in Japan, with rare cases in the West.
  • Six cases were analyzed from 1,038 lymphoma patients (0.6%) over a decade, using histologic and immunohistochemical methods for diagnosis, including tests for Epstein-Barr virus.
  • The average patient age was 73, experiencing symptoms over 45 years after initial treatments, with outcomes showing poor prognosis and an average survival of five months due to aggressive tumor growth or infections, highlighting the need for awareness of additional risk factors.
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Introduction: Central nervous system, especially spinal cord involvement, is unusual in Hodgkin's disease. We report the case of a patient with refractory Hodgkin's disease who presented with intramedullary involvement.

Exegesis: A 36-year-old woman presented with weakness of the right lower extremity and sphincter dysfunction 13 years after initial diagnosis of Hodgkin's disease.

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