Publications by authors named "Marchis L"

Article Synopsis
  • Young women with breast cancer have a higher likelihood of carrying harmful BRCA gene variants, but data on tumor histology's prognostic value is limited.
  • A study involving 4,628 patients revealed that lobular tumors are generally diagnosed at a later stage and are more often linked to BRCA2 mutations, while ductal tumors are frequently associated with BRCA1 mutations.
  • Despite differences in tumor characteristics and treatment approaches, the study found no significant differences in disease-free or overall survival between those with ductal and lobular tumors, indicating that histology may not influence prognosis.
View Article and Find Full Text PDF

Background: Hormone receptor expression is a known positive prognostic and predictive factor in breast cancer; however, limited evidence exists on its prognostic impact on prognosis of young patients harboring a pathogenic variant (PV) in the BRCA1 and/or BRCA2 genes.

Patients And Methods: This international, multicenter, retrospective cohort study included young patients (aged ≤40 years) diagnosed with invasive breast cancer and harboring germline PVs in BRCA genes. We investigated the impact of hormone receptor status on clinical behavior and outcomes of breast cancer.

View Article and Find Full Text PDF
Article Synopsis
  • Breast cancer (BC) is rare in women aged ≤40 years with BRCA1/2 variants, but it often presents aggressive features; recent studies show HER2-low expression as a potential treatment target in this subset.
  • A study analyzed data from 3,547 young women with newly diagnosed HER2-negative BC, finding that 32.3% exhibited HER2-low status, which was more common in hormone receptor-positive and BRCA2 variant cases.
  • Results indicated that HER2-low BC had better disease-free survival (DFS) and overall survival (OS) compared to HER2-0, particularly in triple-negative tumors, with lower grades and more favorable outcomes linked to BRCA2 variants.
View Article and Find Full Text PDF

Importance: Young women with breast cancer who have germline pathogenic variants in BRCA1 or BRCA2 face unique challenges regarding fertility. Previous studies demonstrating the feasibility and safety of pregnancy in breast cancer survivors included limited data regarding BRCA carriers.

Objective: To investigate cumulative incidence of pregnancy and disease-free survival in young women who are BRCA carriers.

View Article and Find Full Text PDF
Article Synopsis
  • Germline pathogenic variants in the ATM gene are linked to increased risks for several cancers, especially early-onset gastric cancer, as seen in a family where three sisters had gastric cancer at various ages, highlighting the gene’s role in familial cancer syndromes.
  • Next-generation sequencing of the family revealed a specific truncating variant (c.5944C>T, p.(Gln1982*)) that segregated among affected and unaffected members, indicating a potential hereditary component in cancer risk.
  • Despite the identified variant, genotype-phenotype correlations are complex due to low penetrance and variable expressivity, making family history assessments crucial for effective prevention and diagnosis planning.
View Article and Find Full Text PDF

Background: Knowledge is growing on the safety of assisted reproductive techniques (ART) in cancer survivors. No data exist, however, for the specific population of breast cancer patients harboring germline BRCA1/2 pathogenic variants.

Patients And Methods: This is a multicenter retrospective cohort study across 30 centers worldwide including women diagnosed at ≤40 years with stage I-III breast cancer, between January 2000 and December 2012, harboring known germline BRCA1/2 pathogenic variants.

View Article and Find Full Text PDF
Article Synopsis
  • Young breast cancer patients with BRCA pathogenic variants show similar outcomes as non-carriers, but the effects of gene type (BRCA1 vs. BRCA2) and hormone receptor status (positive vs. negative) on their clinical outcomes are not well understood.
  • An international study of 1,236 young mBRCA patients revealed that BRCA1 carriers had higher rates of second primary cancers but less frequent distant recurrences compared to BRCA2 carriers.
  • The findings highlight the significant influence of gene type and hormone receptor status on breast cancer behavior, offering essential insights for better patient counseling regarding treatment and prevention.
View Article and Find Full Text PDF

The 5-10% of breast/ovarian cancers (BC and OC) are inherited, and germline pathogenic (P) variants in DNA damage repair (DDR) genes and explain only 10-20% of these cases. Currently, new DDR genes have been related to BC/OC and to pancreatic (PC) cancers, but the prevalence of P variants remains to be explored. The purpose of this study was to investigate the spectrum and the prevalence of pathogenic variants in DDR pathway genes other than and to correlate the genotype with the clinical phenotype.

View Article and Find Full Text PDF

Purpose: Young women with germline mutations have unique reproductive challenges. Pregnancy after breast cancer does not increase the risk of recurrence; however, very limited data are available in patients with mutations. This study investigated the impact of pregnancy on breast cancer outcomes in patients with germline mutations.

View Article and Find Full Text PDF

Pathogenic variants (PVs) carriers in or are associated with an elevated lifetime risk of developing breast cancer (BC) and/or ovarian cancer (OC). The prevalence of and germline alterations is extremely variable among different ethnic groups. Particularly, the rate of variants in Italian BC and/or OC families is rather controversial and ranges from 8% to 37%, according to different reports.

View Article and Find Full Text PDF

Molecular analysis of (# and ( #600185) genes is essential for familial breast and ovarian cancer prevention and treatment. An efficient, rapid, cost-effective accurate strategy for the detection of pathogenic variants is crucial. Mutations detection of genes includes screening for single nucleotide variants (SNVs), small insertions or deletions (indels), and Copy Number Variations (CNVs).

View Article and Find Full Text PDF

Chronic obstructive pulmonary disease (COPD) and asthma are lung inflammatory diseases that represent major public health problems. The primary, and often unique, method to evaluate lung function is spirometry, which reflects disease severity rather than disease activity. Moreover, its measurements strictly depend on patient's compliance, physician's expertise and data interpretation.

View Article and Find Full Text PDF

Smoking in hospitals is banned in most of European countries; nevertheless, implementing a total smoking ban is particularly difficult and policy breaches are frequent. Aim of our study was to monitor the compliance with the smoke-free policy within a hospital district by measuring particulate matters (PM2.5).

View Article and Find Full Text PDF

Antiangiogenic agents (AAs) have reported grater efficacy compared to interferon. Despite these advances, radiological complete response to therapy is rare. We meta-analyzed the incidence of complete response in patients treated with AAs and in controls in main randomized clinical trials for first-line therapy in metastatic renal cell carcinoma.

View Article and Find Full Text PDF

Objectives And Design: To date, no sufficiently sensitive and specific single marker has been found to predict the clinical course of sarcoidosis. We designed a cohort study to investigate whether a panel of biomarkers measured in bronchoalveolar lavage (BAL) and peripheral blood could help predict pulmonary function worsening during the clinical course of sarcoidosis.

Methods: We analyzed 30 individuals with histologically proven sarcoidosis.

View Article and Find Full Text PDF

Objective And Study Design: A parallel group study to investigate the effectiveness of a smoking cessation programme performed during routine rehabilitation practice for outpatients.

Patients And Methods: The study participants comprised an intervention group of 102 consecutive smokers who underwent a smoking cessation programme in a rehabilitation centre and a control group of 101 consecutive smokers who were referred to a smoking cessation centre in a pulmonary hospital. All participants underwent physical examination,pulmonary function tests and received identical behavioural and/or pharmacological treatment.

View Article and Find Full Text PDF

Loss of heterozygosity (LOH) on chromosome 17q21 has been detected in 30% of primary human breast tumours. The smallest common region deleted occurred in an interval between the D17S746 and D17S846 polymorphic sequences tagged sites that are located on two recombinant P1-bacteriophage clones of chromosome 17q21: 122F4 and 50H1, respectively. To identify the target gene for LOH, we defined a map of this chromosomal region.

View Article and Find Full Text PDF

The human cell lines VACO-235 and VACO-411 constitute a novel in vitro model of colon adenoma to carcinoma progression. By differential display RT-PCR we identified a transcript that is expressed in the parental nontumorigenic adenoma line (VACO-235E), but is not expressed in the tumorigenic daughter (VACO-235L) or granddaughter (VACO-411) lines. This cDNA represents a previously uncharacterized portion of the 3'UTR of human PIGR.

View Article and Find Full Text PDF

p53 and p185 expression in primary breast cancer with microsatellite instability (MSI) is still largely unexplored. To investigate the relationship between these oncoproteins and the pathways of genomic instability, we examined 52 primary invasive breast cancers stratified by the presence and absence of MSI. We determined the status of eight microsatellite loci using radioactive and silver staining methods, and evaluated the immunohistochemical expression of p53 and p185 in a consecutive series of Italian cancer patients characterized by clinical-pathological and biological parameters.

View Article and Find Full Text PDF

We have analyzed the functional activity of the p53 tumor suppressor in human T-cell lymphotropic virus type 2 (HTLV-2)-transformed cells. Abundant levels of the p53 protein were detected in both HTLV-2A and -2B virus-infected cell lines. The p53 was functionally inactive, however, both in transient-transfection assays using a p53 reporter plasmid and in induction of p53-responsive genes in response to gamma irradiation.

View Article and Find Full Text PDF

DNA ploidy and thymidine-labeling index (TLI) have been introduced as prognostic indicators to characterize the biological behavior of breast cancer for the selection of patients eligible for adjuvant therapy. The aim of this study was to evaluate the prognostic significance and correlation between ploidy status, TLI and other common histopathologic parameters such as histotype, stage, grading, lymph node metastasis, hormone receptors and recurrence. DNA ploidy and TLI were assessed for 68 breast cancer patients, 27 to 85 years of age.

View Article and Find Full Text PDF

We studied the presence of microsatellite instability (MSI) in a series of 108 gastric cancers (GCs) previously identified in an epidemiological study carried out in a high-risk area around Florence. To investigate associations between MSI and GC family history, 34 cases (31.5%) who had a GC-affected first-degree relative were included in the series.

View Article and Find Full Text PDF

Chemotherapy is the most effective treatment for inoperable patients (70%) affected with non-small cell lung cancer (NSCLC). The early detection of tumour progression is mandative in order to promptly shift these patients towards salvage or supportive therapy. The present authors investigated the clinical value of a panel of tumour markers, elaborated by means of discriminant analysis, as a follow-up indicator for the detection of tumour progression.

View Article and Find Full Text PDF

We analyzed 81 cases of primary breast carcinoma and 7 cases of fibroadenoma for microsatellite instability at eight loci. Twenty-seven cases (33.3%) manifested aberrant microsatellite alleles: 7 (8.

View Article and Find Full Text PDF