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Sökning: WFRF:(Fumagalli Caterina)

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1.
  • Guerini-Rocco, Elena, et al. (författare)
  • Genomic aberrations and late recurrence in postmenopausal women with hormone receptor-positive early breast cancer: Results from the SOLE Trial.
  • 2021
  • Ingår i: Clinical cancer research : an official journal of the American Association for Cancer Research. - 1078-0432. ; 27:2, s. 504-512
  • Tidskriftsartikel (refereegranskat)abstract
    • Women with hormone-receptor-positive early breast cancers have a persistent risk of relapse and biomarkers for late recurrence are needed. We sought to identify tumor genomic aberrations associated with increased late recurrence risk.In a secondary analysis of Study of Letrozole Extension (SOLE) trial, a case-cohort-like sampling selected 598 primary breast cancer for targeted next-generation sequencing (NGS) analysis of gene mutations and copy number gains (CNG). Correlations of genomic aberrations with clinicopathologic factors and breast and distant recurrence free-intervals (BCFI and DRFI) were analyzed using weighted Cox models.Analysis of mutations and CNG was successfully performed for 403 and 350 samples, including 148 and 134 patients with breast cancer recurrences (median follow-up time: 5.2 years), respectively. The most frequent alterations were PIK3CA mutations (42%) and CNGs of CCND1 (15%), ERBB2 (10%), FGFR1 (8%) and MYC (8%). PIK3CA mutations and MYC CNG were associated with lower (p=0.03) and higher (p=0.004) tumor grade respectively; a higher Ki67 was seen in tumor with CCND1, ERBB2 and MYC CNGs (p=0.01, <0.001 and 0.03 respectively). FGFR1 CNG was associated with an increased risk of late events in univariate analyses (17/29 patients; BCFI: HR=3.2, 95%CI: 1.48-6.92, p =0.003; DRFI: HR=3.5, 95%CI: 1.61-7.75, p=0.002) and in multivariable models adjusted for clinicopathologic factors.Postmenopausal women with hormone receptor-positive early breast cancer harboring FGFR1 CNG had an increased risk of late recurrence despite extended therapy. FGFR1 CNG may represent a useful prognostic biomarker for late recurrence and a therapeutic target.
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2.
  • Koumarianou, Anna, et al. (författare)
  • Temozolomide in Advanced Neuroendocrine Neoplasms : Pharmacological and Clinical Aspects
  • 2015
  • Ingår i: Neuroendocrinology. - 0028-3835 .- 1423-0194. ; 101:4, s. 274-288
  • Tidskriftsartikel (refereegranskat)abstract
    • Alkylating agents, such as streptozocin and dacarbazine, have been reported as active in neuroendocrine neoplasms (NENs). Temozolomide (TMZ) is an oral, potentially less toxic derivative of dacarbazine, which has shown activity both as a single agent and in combination with other drugs. Nevertheless, its role in NENs has not been well defined. Several retrospective and prospective phase I-II studies have been published describing its use in a variety of NENs. In a retrospective series, the combination of capecitabine and TMZ was reported to be associated with a particularly high tumour response in pancreatic NENs as a first-line treatment. Although in NENs, determination of the CP-nnethylguanineDNA methyltransferase (MGMT) status has been suggested as a predictive biomarker of response, its role still remains investigational, awaiting validation along with the establishment of the optimal detection method. Metronomic schedules have been reported to potentially overcome MGMT-related drug resistance. Toxicity is manageable if well monitored. We reviewed the literature regarding pharmacological and clinical aspects of TMZ, focusing on specific settings of NENs, different schedules, toxicity and safety profiles, and potential predictive biomarkers of response. 
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