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  1. Article ; Online: Colorectal cancer chemoprevention: is aspirin still in the game?

    Grancher, Adrien / Michel, Pierre / Di Fiore, Frederic / Sefrioui, David

    Cancer biology & therapy

    2022  Volume 23, Issue 1, Page(s) 446–461

    Abstract: Screening strategies have demonstrated their potential for decreasing the incidence and mortality of cancers, particularly that of colorectal cancer (CRC). Another strategy that has been developed to reduce CRC occurrence is the use of chemoprevention ... ...

    Abstract Screening strategies have demonstrated their potential for decreasing the incidence and mortality of cancers, particularly that of colorectal cancer (CRC). Another strategy that has been developed to reduce CRC occurrence is the use of chemoprevention agents. Among them, aspirin is the most promising. Aspirin acts in colorectal tumourigenesis through several mechanisms, either directly in tumor cells or in their microenvironment, such as through its anti-inflammatory activity or its effect on the modulation of platelet function. Many retrospective studies, as well as follow-up of large cohorts from trials with primary cardiovascular end points, have shown that long-term treatment with daily low-dose aspirin decreases the incidence of adenomas and colorectal cancers. Therefore, aspirin is currently recommended by the United States Preventive Services Task Force (USPSTF) for primary prevention of CRC in all patients aged 50 to 59 with a 10-y risk of cardiovascular events greater than 10%. Furthermore, several studies have also reported that long-term aspirin treatment taking after CRC resection decreases recurrence risk and increases overall survival, especially in patients with
    MeSH term(s) Adenoma ; Anti-Inflammatory Agents, Non-Steroidal ; Aspirin/pharmacology ; Aspirin/therapeutic use ; Chemoprevention ; Colorectal Neoplasms/pathology ; Humans ; Retrospective Studies ; Tumor Microenvironment
    Chemical Substances Anti-Inflammatory Agents, Non-Steroidal ; Aspirin (R16CO5Y76E)
    Language English
    Publishing date 2022-07-29
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2146305-0
    ISSN 1555-8576 ; 1538-4047
    ISSN (online) 1555-8576
    ISSN 1538-4047
    DOI 10.1080/15384047.2022.2104561
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: [No title information]

    Vion, Roman / Fontanilles, Maxime / Di Fiore, Frédéric / Clatot, Florian

    Bulletin du cancer

    2021  Volume 108, Issue 11S, Page(s) 11S46–11S54

    Abstract: The tumor biopsy remains essential for breast cancer diagnosis and characterization. Indeed, the treatment is decided according to histological subtype, and according to the presence of targetable molecular alterations. Notably, the presence of hormone ... ...

    Title translation Place des biopsies liquides dans le diagnostic et la caractérisation moléculaire des cancers du sein: Role of liquid biopsies in the diagnosis and molecular characterization of breast cancer.
    Abstract The tumor biopsy remains essential for breast cancer diagnosis and characterization. Indeed, the treatment is decided according to histological subtype, and according to the presence of targetable molecular alterations. Notably, the presence of hormone receptors, ERBB2 hyperexpression or the existence of PIK3CA or ESR1 mutations are among the alterations commonly investigated. But these biological characteristics are determined only partially by tumor biopsy, due to tumor heterogeneity or tumor plasticity that happens spontaneously or under treatment. Liquid biopsy, and in particular circulating tumor DNA and circulating tumor cells, is a non-invasive method to identify and characterize the presence of cancer in the blood. The aim of this review is to determine the value of liquid biopsy to enhance or replace the data provided by a tumor biopsy.
    MeSH term(s) Breast Neoplasms/blood ; Breast Neoplasms/chemistry ; Breast Neoplasms/genetics ; Breast Neoplasms/pathology ; Circulating Tumor DNA/blood ; Class I Phosphatidylinositol 3-Kinases/genetics ; Estrogen Receptor alpha/genetics ; Female ; Gene Amplification ; Genes, erbB-2 ; Humans ; Liquid Biopsy ; Mutation ; Neoplastic Cells, Circulating/pathology ; Receptor, ErbB-2/analysis
    Chemical Substances Circulating Tumor DNA ; ESR1 protein, human ; Estrogen Receptor alpha ; Class I Phosphatidylinositol 3-Kinases (EC 2.7.1.137) ; PIK3CA protein, human (EC 2.7.1.137) ; ERBB2 protein, human (EC 2.7.10.1) ; Receptor, ErbB-2 (EC 2.7.10.1)
    Language French
    Publishing date 2021-12-30
    Publishing country France
    Document type Journal Article ; Review
    ZDB-ID 213270-9
    ISSN 1769-6917 ; 0007-4551
    ISSN (online) 1769-6917
    ISSN 0007-4551
    DOI 10.1016/S0007-4551(21)00636-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Prognostic value of circulating short-length DNA fragments in unresected glioblastoma patients.

    Daban, Arthur / Beaussire-Trouvay, Ludivine / Lévêque, Émilie / Alexandru, Cristina / Tennevet, Isabelle / Langlois, Olivier / Veresezan, Ovidiu / Marguet, Florent / Clatot, Florian / Di Fiore, Frédéric / Sarafan-Vasseur, Nasrin / Fontanilles, Maxime

    Translational oncology

    2024  Volume 42, Page(s) 101897

    Abstract: Background: Liquid biopsy application is still challenging in glioblastoma patients and the usefulness of short-length DNA (slDNA) fragments is not established. The aim was to investigate slDNA concentration as a prognostic marker in unresected ... ...

    Abstract Background: Liquid biopsy application is still challenging in glioblastoma patients and the usefulness of short-length DNA (slDNA) fragments is not established. The aim was to investigate slDNA concentration as a prognostic marker in unresected glioblastoma patients.
    Methods: Patients with unresected glioblastoma and treated by radiochemotherapy (RT/TMZ) were included. Plasmas were prospectively collected at three times: before (pre-) RT, after (post-) RT and at the time of progression. Primary objective was to investigate the impact on survival of slDNA concentration [slDNA] variation during RT/TMZ. Secondary objectives were to explore the association between tumor volume, corticosteroid exposition and [slDNA]; and the impact of slDNA detection at pre-RT on survival.
    Results: Thirty-six patients were analyzed: 11 patients (30.6 %) experienced [slDNA] decrease during RT/TMZ, 22 patients (61.1 %) experienced increase and 3 patients (8.3 %) had stability. Decrease of [slDNA] during RT/TMZ was associated with better outcome compared to increase or stability: median OS, since end of RT, of 13.2 months [11.4 - NA] vs 10.1 months [7.8 - 12.6] and 6.8 months [4.5 - NA], p = 0.015, respectively. slDNA detection at pre-RT time was associated with improved OS: 11.7 months in the slDNA(+) group versus 8.8 months in the slDNA(-) group, p = 0.004. [slDNA] was not associated with corticosteroids exposition or tumor volume. No influence on survival was observed for both whole cfDNA concentration or slDNA peak size.
    Conclusion: [slDNA] decrease during radiochemotherapy phase is a favorable prognostic marker on OS for unresected glioblastoma patients. Larger and independent cohorts are now required.
    Trial registration: ClinicalTrial, NCT02617745. Registered 1 December 2015, https://clinicaltrials.gov/ct2/show/NCT02617745?term=glioplak&draw=2&rank=1.
    Language English
    Publishing date 2024-02-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2443840-6
    ISSN 1936-5233
    ISSN 1936-5233
    DOI 10.1016/j.tranon.2024.101897
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: TERT

    Olympios, Nathalie / Gilard, Vianney / Marguet, Florent / Clatot, Florian / Di Fiore, Frédéric / Fontanilles, Maxime

    Cancers

    2021  Volume 13, Issue 5

    Abstract: Glioblastoma, the most frequent and aggressive primary malignant tumor, often presents with alterations in the telomerase reverse transcriptase promoter. Telomerase is responsible for the maintenance of telomere length to avoid cell death. Telomere ... ...

    Abstract Glioblastoma, the most frequent and aggressive primary malignant tumor, often presents with alterations in the telomerase reverse transcriptase promoter. Telomerase is responsible for the maintenance of telomere length to avoid cell death. Telomere lengthening is required for cancer cell survival and has led to the investigation of telomerase activity as a potential mechanism that enables cancer growth. The aim of this systematic review is to provide an overview of the available data concerning
    Language English
    Publishing date 2021-03-08
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers13051147
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Associated Factors with Breast Nurses Unplanned Interventions in Patients Treated for an Early Breast Cancer.

    Vion, Roman / Fleury, Patricia / Blazejewski, Valérie / Rigal, Olivier / Fontanilles, Maxime / Lequesne, Justine / Di Fiore, Frederic / Clatot, Florian

    Breast care (Basel, Switzerland)

    2023  Volume 18, Issue 2, Page(s) 113–121

    Abstract: Background: The presence of a breast nurse is recommended to advise and guide early breast cancer patients before and during chemotherapy/radiation therapy, and at the end of planned treatments. Nevertheless, some patients will need extra guidance. ... ...

    Abstract Background: The presence of a breast nurse is recommended to advise and guide early breast cancer patients before and during chemotherapy/radiation therapy, and at the end of planned treatments. Nevertheless, some patients will need extra guidance. Little is known about the predisposing factors for additional requests.
    Aim and objective: Determine time, reasons, and risk factors for breast nurse unplanned solicitations.
    Design and methods: This monocentric retrospective study included all early breast cancer patients treated with chemotherapy during 1 year. Unplanned solicitations (in person, by phone, or by e-mail) were recorded in the medical file. They were extracted and stratified in four categories: treatment adverse events, medical condition, psychological support, and counselling.
    Results: 368 unplanned solicitations were observed for 265 patients, 140 patients (52.8%) asked for at least one unplanned solicitation and 57 (21.5%) asked for at least three. There was no significant difference between the four categories. Most of unplanned solicitations occurred significantly during chemotherapy, essentially after first docetaxel infusion (57% of calls). In univariate and multivariate analyses, anxiolytic treatment was significantly associated with more unplanned solicitations (OR = 2,
    Conclusion: Breast nurse unplanned solicitations during adjuvant or neoadjuvant chemotherapy in early breast cancers are frequent. Even if patients with anxiolytic treatment have a slightly higher risk of solicitation, no typical profile of a patient who will need extra support exists. Because of its known toxicity, the first cycle of docetaxel is associated with a clear increase in solicitations. Despite physicians' consultations, breast nurses guidance, and leaflets on supportive care and treatments side effects, optimal patient management during early breast cancer remains challenging. Further randomized studies testing more customized tools are required to improve patient support.
    Language English
    Publishing date 2023-01-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2202236-3
    ISSN 1661-3805 ; 1661-3791
    ISSN (online) 1661-3805
    ISSN 1661-3791
    DOI 10.1159/000529104
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: ESR1 mutations in breast cancer.

    Clatot, Florian / Augusto, Laetitia / Di Fiore, Frédéric

    Aging

    2017  Volume 9, Issue 1, Page(s) 3–4

    MeSH term(s) Animals ; Breast Neoplasms/genetics ; Drug Resistance, Neoplasm/genetics ; Estrogen Receptor alpha/genetics ; Female ; Humans ; Mutation
    Chemical Substances ESR1 protein, human ; Estrogen Receptor alpha
    Language English
    Publishing date 2017-02-08
    Publishing country United States
    Document type Editorial
    ISSN 1945-4589
    ISSN (online) 1945-4589
    DOI 10.18632/aging.101165
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Are patients living far from hospital at higher risk of late adjuvant chemotherapy for colon cancer?

    Vermeulin, Thomas / Lahbib, Hana / Lucas, Mélodie / Czernichow, Pierre / Jusot, Florence / Di Fiore, Frédéric / Merle, Véronique

    British journal of clinical pharmacology

    2022  Volume 88, Issue 8, Page(s) 3903–3910

    Abstract: Aims: Late adjuvant chemotherapy (aCT) administration after colectomy (>56 d) is known to be associated with impaired prognosis. We aim to identify risk factors associated with late aCT, especially the travel time between patients' home and hospital.: ...

    Abstract Aims: Late adjuvant chemotherapy (aCT) administration after colectomy (>56 d) is known to be associated with impaired prognosis. We aim to identify risk factors associated with late aCT, especially the travel time between patients' home and hospital.
    Methods: We performed a retrospective monocentre cohort study. Patients included had a colectomy for a stage III or high risk stage II colon cancer between 2009 and 2015 performed at a French university hospital. Risk factors for late aCT were identified using a fractional polynomial logistic regression.
    Results: Ninety-four patients were included. The risk of late aCT was associated with travel time length, emergent colectomy, the need for scheduled care before aCT, and length of time between colectomy and postoperative multidisciplinary meeting advising aCT.
    Conclusion: Our study suggests that, in patients with colon cancer, factors unrelated to disease severity and complexity could be associated with a higher risk of late aCT.
    MeSH term(s) Chemotherapy, Adjuvant/adverse effects ; Cohort Studies ; Colonic Neoplasms/drug therapy ; Colonic Neoplasms/pathology ; Colonic Neoplasms/surgery ; Hospitals ; Humans ; Neoplasm Staging ; Retrospective Studies
    Language English
    Publishing date 2022-03-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 188974-6
    ISSN 1365-2125 ; 0306-5251 ; 0264-3774
    ISSN (online) 1365-2125
    ISSN 0306-5251 ; 0264-3774
    DOI 10.1111/bcp.15300
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Deprived social status is associated with decreased use of oral chemotherapy in patients with metastatic colorectal cancer: A retrospective cohort study on administrative databases in a French University Hospital.

    Gautier, Gwendoline / Lucas, Mélodie / Vermeulin, Thomas / Di Fiore, Frederic / Merle, Veronique

    Pharmacology research & perspectives

    2021  Volume 9, Issue 6, Page(s) e00888

    Abstract: Factors associated with the choice of oral versus intravenous CT are not clearly established. Our purpose was to evaluate the influence of social status and home distance to hospital on the use of oral CT in patients with metastatic colorectal cancer ( ... ...

    Abstract Factors associated with the choice of oral versus intravenous CT are not clearly established. Our purpose was to evaluate the influence of social status and home distance to hospital on the use of oral CT in patients with metastatic colorectal cancer (mCRC). This retrospective single-center study included mCRC patients between 2011 and 2017. Patient social status was assessed by European Deprivation Index (EDI) and home distance to the hospital was calculated. Univariable and multivariable logistic regression analyses were performed. One hundred and seventy-five mCRC patients were included, with 71 receiving oral CT. Most deprived patients received less oral CT (OR 0.5 [0.26, 0.96], p = .039). No association was found for road distance. Previous use of adjuvant oral CT was associated with oral CT in mCRC (OR 2.65 [1.06, 6.66], p = .038). Our results suggest that deprived social status is a factor associated with decreased use of oral CT in patients with mCRC. Clinical trial registration: no registration.
    MeSH term(s) Administration, Intravenous ; Administration, Oral ; Aged ; Aged, 80 and over ; Antineoplastic Agents/administration & dosage ; Cohort Studies ; Colorectal Neoplasms/drug therapy ; Databases, Factual ; Female ; France ; Hospitals, University ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Social Status
    Chemical Substances Antineoplastic Agents
    Language English
    Publishing date 2021-11-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2740389-0
    ISSN 2052-1707 ; 2052-1707
    ISSN (online) 2052-1707
    ISSN 2052-1707
    DOI 10.1002/prp2.888
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Evaluation of sarcopenia biomarkers in older patients undergoing major surgery for digestive cancer. SAXO prospective cohort study.

    Gagnat, Guillaume / Hobeika, Christian / Modzelewski, Romain / Collet, Celine Savoye / Di Fiore, Frederic / Druesne, Laurent / Tuech, Jean Jacques / Schwarz, Lilian

    European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology

    2022  Volume 49, Issue 1, Page(s) 285–292

    Abstract: Background: The aim of the study was to prospectively evaluate different biomarkers to identify the most reliable for anticipating complications after major abdominal surgery for digestive cancer in older patients and compare their performance to the ... ...

    Abstract Background: The aim of the study was to prospectively evaluate different biomarkers to identify the most reliable for anticipating complications after major abdominal surgery for digestive cancer in older patients and compare their performance to the existing definition and screening algorithm of sarcopenia from EWGSOP.
    Methods: Ninety-five consecutive patients aged over 65 years who underwent elective surgery for digestive cancer were prospectively included in the SAXO study. Sarcopenia was defined according to EWGSOP criteria (four level from no sarcopenia to severe sarcopenia). Strength and physical performance were evaluated with the handgrip test (HGT) and gait speed test (GST), respectively. CT scan analysis was used to calculate the skeletal muscle index (SMI), intermuscular adipose tissue (IMAT), visceral adipose tissue (VAT), and subcutaneous adipose tissue (SAT). Measures were adjusted to body mass index (BMI). Complication grading was performed using the Clavien‒Dindo classification. A doubly robust estimator with multivariable regression was used to limit bias.
    Results: Sixteen patients presented with sarcopenia. Adjusted to BMI, sarcopenic patients had an increased IMAT
    Discussion: Non-invasive and imaging related measures of IMAT, SAT and VAT seems to be valuable tools to refine risk-assessment of older patients in surgery and specially to detect myosteatosis in obese ones.
    MeSH term(s) Humans ; Aged ; Sarcopenia/diagnosis ; Sarcopenia/diagnostic imaging ; Hand Strength ; Prospective Studies ; Muscle, Skeletal/diagnostic imaging ; Obesity/complications ; Biomarkers ; Gastrointestinal Neoplasms
    Chemical Substances Biomarkers
    Language English
    Publishing date 2022-09-06
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 632519-1
    ISSN 1532-2157 ; 0748-7983
    ISSN (online) 1532-2157
    ISSN 0748-7983
    DOI 10.1016/j.ejso.2022.08.038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Clinical relevance of circulating ESR1 mutations during endocrine therapy for advanced hormone-dependent endometrial carcinoma.

    Drouyer, Aurélien / Beaussire, Ludivine / Jorda, Pauline / Leheurteur, Marianne / Guillemet, Cécile / Berghian, Anca / Georgescu, Dragos / Di Fiore, Frédéric / Perdrix, Anne / Clatot, Florian

    BMC cancer

    2023  Volume 23, Issue 1, Page(s) 1061

    Abstract: Objective: Endocrine therapy is frequently administered in patients with hormone dependent (HR+) metastatic endometrial cancer. ESR1 mutations have emerged as a key mechanism of aromatase inhibitor (AI) resistance in HR + metastatic breast cancer and ... ...

    Abstract Objective: Endocrine therapy is frequently administered in patients with hormone dependent (HR+) metastatic endometrial cancer. ESR1 mutations have emerged as a key mechanism of aromatase inhibitor (AI) resistance in HR + metastatic breast cancer and can be monitored using circulating tumor DNA (ctDNA). The aim of this study was to explore the incidence and clinical relevance of circulating ESR1 mutations in patients treated by AI or megestrol acetate (M) for advanced endometrial carcinoma.
    Methodology: This single-center retrospective study was performed at the Henri Becquerel Center (Rouen) and looked for circulating ESR1 gene mutations by droplet digital PCR (E380Q, L536R, Y537S, Y537N, Y537C, D538G, S463P) in patients with advanced HR + endometrial carcinoma treated between 2008 and 2020 for at least 30 days by AI or M. Analyses were performed before exposure and at progression/during endocrine therapy.
    Results: Twenty-two patients were included: 13 were treated with AI, 12 of whom progressed; 9 patients were treated with M, 8 of whom progressed. 68.1% of the patients had low-grade endometrial carcinoma and 54.5% had received chemotherapy in the metastatic setting. The median duration of treatment was 152 days (min 47 - max 629) with AI and 155 days (min 91-max 1297) with M. Under AI, there was no ESR1 mutation at baseline, and one Y537C mutation at progression with a variant allele frequency (VAF) of 0.14%. Under M, one patient had a Y537C (VAF 0.2%) at baseline that disappeared during treatment. Another patient had a Y537S mutation emergence at progression after 91 days of treatment (VAF 1.83%). There was no significant difference between the circulating DNA concentration before and after hormone therapy (p = 0.16).
    Conclusion: ESR1 mutations do not seem to be involved in the mechanisms of resistance to AI or M in HR+ endometrial cancer. The clinical relevance of their detection is not demonstrated.
    MeSH term(s) Female ; Humans ; Breast Neoplasms/pathology ; Clinical Relevance ; Endometrial Neoplasms/drug therapy ; Endometrial Neoplasms/genetics ; Estrogen Receptor alpha/genetics ; Hormones/therapeutic use ; Mutation ; Retrospective Studies
    Chemical Substances Estrogen Receptor alpha ; Hormones ; ESR1 protein, human
    Language English
    Publishing date 2023-11-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041352-X
    ISSN 1471-2407 ; 1471-2407
    ISSN (online) 1471-2407
    ISSN 1471-2407
    DOI 10.1186/s12885-023-11559-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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