Breast Cancer : Basic and Clinical Research最新文献

{"title":"CT Texture Analysis in Breast Cancer Patients Undergoing CT-Guided Bone Biopsy: Correlations With Histopathology.","authors":"Silvio Wermelskirchen, Jakob Leonhardi, Anne-Kathrin Höhn, Georg Osterhoff, Nikolas Schopow, Susanne Briest, Timm Denecke, Hans-Jonas Meyer","doi":"10.1177/11782234241305886","DOIUrl":"https://doi.org/10.1177/11782234241305886","url":null,"abstract":"<p><strong>Background: </strong>Texture analysis has the potential to deliver quantitative imaging markers. Patients receiving computed tomography (CT)-guided percutaneous bone biopsies could be characterized using texture analysis derived from CT. Especially for breast cancer (BC) patients, it could be crucial to better predict the outcome of the biopsy to better reflect the immunohistochemistry status of the tumor.</p><p><strong>Objectives: </strong>The present study examined the relationship between texture features and outcomes in patients with BC receiving CT-guided bone biopsies.</p><p><strong>Design: </strong>This study is based on a retrospective analysis.</p><p><strong>Methods: </strong>The present study included a total of 66 patients. All patients proceeded to undergo a CT-guided percutaneous bone biopsy, using an 11-gauge coaxial needle. Clinical and imaging characteristics as well as CT texture analysis were included in the analysis. Logistic regression analysis was performed to predict negative biopsy results.</p><p><strong>Results: </strong>Overall, 33 patients had osteolytic metastases (50%) and 33 had osteoblastic metastases (50%). The overall positivity rate for the biopsy was 75%. The clinical model exhibited a predictive accuracy for a positive biopsy result, as indicated by an area under the curve (AUC) of 0.73 [95% confidence interval (CI) = 0.63-0.83]. Several CT texture features were different between Luminal A and Luminal B cancers; the best discrimination was reached for \"WavEnHH_s-3\" with a <i>P</i>-value of .002. When comparing triple-negative to non-triple-negative cancers, several CT texture features were different, the best discrimination achieved \"S(5,5)SumVarnc\" with a <i>P</i>-value of .01. For the Her 2 discrimination, only 3 parameters reached statistical significance, \"S(4,-4)SumOfSqs\" with a <i>P</i>-value of .01.</p><p><strong>Conclusions: </strong>The utilization of CT texture features may facilitate a more accurate characterization of bone metastases in patients with BC. There is the potential to predict the immunohistochemical subtype with a high degree of accuracy. The identified parameters may prove useful in clinical decision-making and could help to identify patients at risk of a negative biopsy result.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"19 ","pages":"11782234241305886"},"PeriodicalIF":1.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11775983/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143063619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Absence of Cysteine and Iron Chelation Induces Ferroptosis in Triple-Negative Breast Cancer Cells.","authors":"Manvi Agarwal Neeraj, JunJeong Choi","doi":"10.1177/11782234241311012","DOIUrl":"10.1177/11782234241311012","url":null,"abstract":"<p><strong>Background: </strong>Ferroptosis is a recently studied form of programmed cell death characterized by lipid peroxides accumulation in the cells. This process occurs when a cell's antioxidant capacity is disturbed resulting in the inability of the cell to detoxify the toxic peroxides. Two major components that regulate ferroptosis are cysteine and iron.</p><p><strong>Objective: </strong>This study aimed to determine the effect of cysteine deficiency and iron chelation on triple-negative breast cancer (TNBC) ferroptosis in a lipid-enriched microenvironment.</p><p><strong>Design: </strong>The study has a laboratory-based experimental design. This study used the MDA-MB-231 cell line in various in vitro cell culture systems to investigate the research question.</p><p><strong>Methods: </strong>For the first part of the study, we subjected MDA-MB-231 cells to grow in cysteine-absent adipocyte-conditioned media. In the second half, we treated MDA-MB-231 cells with iron chelator, deferoxamine. BODIPY imaging and western blot were carried out to observe ferroptosis in the cells under the 2 conditions.</p><p><strong>Results: </strong>The results showed that cysteine absence in the conditioned media was able to reduce the formation of lipid droplets, which increased the greater access to free fatty acids to undergo oxidation, therefore inducing ferroptosis. On the contrary, cells when treated with deferoxamine along with erastin (ferroptosis-inducing drug), showed an increase in cell iron content was observed, later inducing ferroptosis.</p><p><strong>Conclusion: </strong>Our results show an alternative function of cysteine and deferoxamine, one regulating lipid droplets and the other inducing ferroptosis, although an inhibitor of the same, respectively.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"19 ","pages":"11782234241311012"},"PeriodicalIF":1.8,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11736731/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143000131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare Cell Population Analysis in Early-Stage Breast Cancer Patients.","authors":"Stefan Schreier, Prapaphan Budchart, Suparerk Borwornpinyo, Lakkana Adireklarpwong, Prakasit Chirappapha, Wannapong Triampo, Panuwat Lertsithichai","doi":"10.1177/11782234241310596","DOIUrl":"10.1177/11782234241310596","url":null,"abstract":"<p><strong>Background: </strong>Circulating rare cells participate in breast cancer evolution as systemic components of the disease and thus, are a source of theranostic information. Exploration of cancer-associated rare cells is in its infancy.</p><p><strong>Objectives: </strong>We aimed to investigate and classify abnormalities in the circulating rare cell population among early-stage breast cancer patients using fluorescence marker identification and cytomorphology. In addition, we sought to determine the dependency of these markers on the presence of tumors.</p><p><strong>Design: </strong>We evaluated the validity of a multi-rare-cell detection platform and demonstrated the utility of a specific rare cell subset as a novel approach to characterize the breast cancer system. Sampling was conducted both before and after tumor resection.</p><p><strong>Methods: </strong>Linearity of the Rarmax platform was established using a spike-in approach. The platform includes red blood cell lysis, leukocyte depletion and high-resolution fluorescence image recording. Rare cell analysis was conducted on 28 samples (before and after surgery) from 14 patients with breast cancer, 20 healthy volunteers and 9 noncancer control volunteers. In-depth identification of rare cells, including circulating tumor cells, endothelial-like cells, erythroblasts, and inflammation-associated cells, was performed using a phenotype and morphology-based classification system.</p><p><strong>Results: </strong>The platform performed linearly over a range of 5 to 950 spiked cells, with an average recovery of 84.6%. Circulating epithelial and endothelial-like cell subsets have been demonstrated to be associated with or independent of cancer with tumor presence. Furthermore, certain cell profile patterns may be associated with treatment-related adverse effects. The sensitivity in detecting tumor-presence and cancer-associated abnormality before surgery was 43% and 85.7%, respectively, and the specificity was 100% and 96.6%, respectively.</p><p><strong>Conclusion: </strong>This study supports the idea of a cancer-associated rare cell abnormality to represent tumor entities as well as systemic cancer. The latter is independent of the apparent clinical cancer.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"19 ","pages":"11782234241310596"},"PeriodicalIF":1.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11724413/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142969654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occult Breast Cancer in High-Risk Gene-Positive Pakistani Women Undergoing Contralateral Prophylactic Mastectomy/Prophylactic Mastectomy: Implications for Sentinel Lymph Node Biopsy.","authors":"Mehwish Mooghal, Wajiha Khan, Saba Anjum, Hafsa Shaikh, Safna Naozer Virji, Lubna M Vohra","doi":"10.1177/11782234241311018","DOIUrl":"https://doi.org/10.1177/11782234241311018","url":null,"abstract":"<p><strong>Introduction: </strong>Sentinel lymph node biopsy (SLNB) of the axilla is standard in breast cancer (BC) management; however, its role in prophylactic/contralateral prophylactic mastectomy (CPM) is still questioned. To avoid future consequences on surgical morbidity and socioeconomic aspects in low and middle-income countries (LMICs), we intend to determine the prevalence of occult breast cancer (OBC) among CPM cases.</p><p><strong>Objective: </strong>To determine the prevalence of OBC in patients undergoing prophylactic mastectomy (PM).</p><p><strong>Design: </strong>This is a retrospective cohort study.</p><p><strong>Materials and methods: </strong>This retrospective cohort study is conducted at a tertiary-care hospital from January 2017 to December 2022. All individuals with the positive genetic test for high-risk breast cancer (HRBC) genes who underwent PMs/CPM at our centre were included. We analysed data using SPSS version 23.0.</p><p><strong>Results: </strong>Twenty-six mutation-positive females underwent PM/CPM (16.1%). Two (7.69%) of 26 had later post-PM recurrence. Only 8 (30.76%) patients had SLNB and all were negative. No OBC was seen in PM/CPM specimens, whereas 3 (11.5%) had atypical ductal hyperplasia (ADH). Two of the ADH had BI-RADS-1, whereas 1 was BI-RADS-4 (33.3%) on the preoperative assessment. Results also showed that with an increase in the tumour grade of the diseased breast, the BI-RADS score of the asymptomatic breast was subsequently increased (<i>P</i> = .029).</p><p><strong>Conclusion: </strong>Our study shows negative OBCs in PM/CPM cases with persistently negative SLNB results; however, ADH is identified in 11.5% of specimens. Our results suggest that SLNB can be safely omitted in patients undergoing CPM, but, preoperatively, patient and disease factors should be considered.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"19 ","pages":"11782234241311018"},"PeriodicalIF":1.8,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11694291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142930313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trastuzumab Induces Apoptosis and Cell Cycle Arrest in Triple-Negative Breast Cancer, Suggesting Repurposing Potential.","authors":"Shaimaa Abdel-Ghany, Yasmin Khalid, Soha Mohamed, Gehan Mohamed, Engy Mohdy, Abeer Ezzat, Engy F Madian, Osama A Said, Mohamed A Abdel-Hakeem, Mahmoud Nazih, Ahmed Khoder, Hussein Sabit","doi":"10.1177/11782234241285411","DOIUrl":"10.1177/11782234241285411","url":null,"abstract":"<p><strong>Background: </strong>Breast cancer remains the most common invasive cancer in women worldwide. Triple-negative breast cancer (TNBC) is an aggressive subtype with limited treatment options. Trastuzumab (Tz) is typically used to treat HER2-positive breast cancers, but its potential in TNBC is unclear.</p><p><strong>Objectives: </strong>To investigate the effects of trastuzumab on cell viability, apoptosis, cell cycle progression, and gene expression in TNBC cell lines compared with HER2-positive and normal cell lines.</p><p><strong>Design: </strong>This is an in vitro experimental pre-clinical study using cultured cancer cell lines.</p><p><strong>Methods: </strong>MDA-MB-231 and 4T1 (TNBC), MCF-7 (<i>HER2</i>-positive), and HSF (normal) cell lines were treated with 20 μg/mL trastuzumab for 24 hours. Cell viability was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, apoptosis by flow cytometry, cell cycle progression by DNA content analysis, and gene expression by qPCR.</p><p><strong>Results: </strong>Trastuzumab significantly reduced cell viability and induced apoptosis in TNBC cell lines, comparable to effects in HER2-positive MCF-7 cells. Cell cycle analysis revealed G2/M phase arrest in TNBC cells. Gene expression analysis showed upregulation of ERBB2, <i>NOTCH1</i>, <i>EGFR</i>, <i>PIK3CA</i>, and <i>PTEN</i> in MDA-MB-231 cells, while 4T1 cells exhibited downregulation of most genes except <i>NOTCH1</i>.</p><p><strong>Conclusion: </strong>This study provides initial evidence for trastuzumab's potential therapeutic effects in TNBC, despite low <i>HER2</i> expression. The observed cytotoxicity, apoptosis induction, and cell cycle modulation in TNBC cells warrant further investigation into trastuzumab's mechanisms of action in <i>HER2</i>-negative contexts and its potential repurposing for TNBC treatment.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"18 ","pages":"11782234241285411"},"PeriodicalIF":1.8,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11603482/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142749951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Histopathology of Abemaciclib-Induced Interstitial Lung Disease: A First Case Report With Transbronchial Lung Cryobiopsy.","authors":"Shota Kaburaki, Toru Tanaka, Akari Murata, Koichiro Kamio, Yosuke Tanaka, Yasuhiro Terasaki, Kazuo Kasahara, Masahiro Seike","doi":"10.1177/11782234241301314","DOIUrl":"10.1177/11782234241301314","url":null,"abstract":"<p><p>Abemaciclib, a cyclin-dependent kinase 4/6 inhibitor, is crucial in treating hormone receptor-positive, human epidermal growth factor receptor 2-negative metastatic or recurrent breast cancer. However, its association with drug-induced interstitial lung disease (DI-ILD) is concerning. We present an 82-year-old woman with breast cancer receiving abemaciclib, who developed persistent cough and malaise. Initial diagnostics suggested pneumonia, supported by ground-glass opacities and consolidations on chest high-resolution computed tomography. Suspecting DI-ILD, a transbronchial lung cryobiopsy (TBLC) was performed, revealing fibrosing organizing pneumonia and confirming abemaciclib-induced ILD. Discontinuing abemaciclib led to significant symptom improvement, supporting the diagnosis. This case report describes the clinical presentation and diagnostic approach in a patient with suspected abemaciclib-induced ILD, including the use. To our knowledge, this is the first reported case of fibrosing organizing pneumonia as a histopathological pattern in abemaciclib-induced ILD, expanding knowledge of this therapy's pulmonary adverse events. Histopathological features included diffuse lymphocytic infiltration, polypoid intra-alveolar fibrosis, intraluminal granulation tissue plugs with dense hyalinization, hyalinized fibrotic alveolar septa lesions, and obliterative fibrotic processes affecting alveolar ducts. Our case suggests that TBLC might be useful in recognizing DI-ILD by providing detailed lung tissue examination, which can facilitate early diagnosis and guide management. Identifying fibrosing organizing pneumonia indicated a potentially corticosteroid-responsive pathology, suggesting a more favorable prognosis compared with patterns like diffuse alveolar damage. This case highlights the potential for abemaciclib-induced ILD to occur even after prolonged treatment periods, emphasizing the importance of vigilance and consideration of diagnostic intervention for patients on cyclin-dependent kinase 4/6 inhibitors presenting with respiratory symptoms. Timely recognition and appropriate management may mitigate adverse outcomes. Further studies are needed to confirm these findings and to better understand the role of TBLC and histopathological examination in diagnosing and managing abemaciclib-induced ILD.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"18 ","pages":"11782234241301314"},"PeriodicalIF":1.8,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11587177/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Breast Cancer Knowledge and Attitude Toward Breast Cancer Screening Practice Among Catholic Nuns in Lake Zone-Tanzania.","authors":"Gotfrida Marandu, Kija Malale, Rose Laisser, Joseph Mwanga, Peter Rambau","doi":"10.1177/11782234241301312","DOIUrl":"10.1177/11782234241301312","url":null,"abstract":"<p><strong>Background: </strong>Breast cancer poses a significant public health challenge in Tanzania. Limited knowledge about breast cancer and negative attitudes toward screening practices contributes to delayed diagnoses and poorer patient outcomes. Catholic nuns, who are often nulliparous, represent a population with an increased risk of developing breast cancer. Despite this risk, they remain an understudied group regarding breast cancer awareness and screening practices.</p><p><strong>Objective: </strong>This study aimed to assess breast cancer knowledge and attitudes toward screening practices among Catholic nuns residing in Tanzania's Lake Zone.</p><p><strong>Study design: </strong>The study was a cross-sectional design.</p><p><strong>Methods: </strong>A total of 385 Catholic nuns participated in the study. To ensure a representative sample, nuns were chosen through simple random sampling, giving each Catholic nun an equal probability of being selected. Data were collected using a self-administered questionnaire and then analyzed using STATA version 18.0. Both descriptive and inferential statistics were used to draw conclusions. In inferential statistics, logistic regression was used to test for associations between categorical variables. The test statistics were considered significant when the <i>P</i>-value was less than .05 at a 95% confidence interval (CI).</p><p><strong>Results: </strong>This study enrolled 385 catholic nuns. 57.1% (95% CI, 52.0%-62.1%) of all surveyed catholic nuns had inadequate knowledge of breast cancer. Misconceptions also emerged as significant risk factors for inadequate knowledge. Thus, lack of awareness of breast cancer risk factors increased the odds by 5.57 times (adjusted odds ratio [AOR]: 5.57; 95% CI: 2.84-10.92; <i>P</i> < .001). In addition, believing cancer was not inheritable (AOR: 2.65; 95% CI: 1.14-6.15; <i>P</i> = .024), misperceiving oneself as being in a low-risk group (AOR: 1.65; 95% CI: 1.03-2.66; <i>P</i> = .039), and underestimating the vulnerable age group (believing it is not above 40 years) (AOR: 2.60; 95% CI: 1.49-4.51; <i>P</i> = .001) were all significantly associated with higher odds of inadequate knowledge. Regarding the attitude toward breast cancer screening practices, 62.3% (95% CI, 57.3%-67.2%) of the catholic nuns had negative attitudes.</p><p><strong>Conclusion: </strong>These findings highlight the need for breast health intervention educational programs to improve breast cancer awareness among Catholic nuns. Such programs should address risk factors, symptoms, screening methods, and treatment options, dispelling misconceptions. By empowering nuns with knowledge, they can make informed decisions about their health and take charge of their well-being.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"18 ","pages":"11782234241301312"},"PeriodicalIF":1.8,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11587181/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multicenter Prospective Study in HER2-Positive Early Breast Cancer for Detecting Minimal Residual Disease by Circulating Tumor DNA Analysis With Neoadjuvant Chemotherapy: HARMONY Study.","authors":"Momoko Tokura, Mark Malalay Ando, Yuki Kojima, Rui Kitadai, Shu Yazaki, Cyrielle Marie N Atutubo, Rubi K Li, Minda Z Perez, Agnes E Gorospe, Manuelito A Madrid, Mel Valerie C Ordinario, Marcelo Severino B Imasa, Kazuki Sudo, Tatsunori Shimoi, Akihiko Suto, Shinji Kohsaka, Ryunosuke Machida, Ryo Sadachi, Masayuki Yoshida, Yasushi Yatabe, Tomomi Hata, Kenichi Nakamura, Kan Yonemori, Sho Shiino","doi":"10.1177/11782234241288671","DOIUrl":"10.1177/11782234241288671","url":null,"abstract":"<p><strong>Background: </strong>Biomarkers to predict the recurrence risk are required to optimize perioperative treatment. Adjuvant chemotherapy for patients with human epidermal growth factor 2-positive (HER2-positive) early breast cancer is decided by pathological responses of neoadjuvant chemotherapy (NAC). However, whether pathological responses are appropriate biomarkers is unclear. Currently, there are several studies using minimal residual disease (MRD) as a predictor of prognosis in solid tumors. However, there is no standard method for detecting MRD.</p><p><strong>Objectives: </strong>This study aimed at prospectively evaluating the relationship between MRD detection and recurrence in Asian patients with HER2-positive early breast cancer.</p><p><strong>Design: </strong>Prospective, observational, single-group, and exploratory. This study will include 60 patients from 2 institutions in Japan and the Philippines. The invasive disease-free survival (IDFS) rates of the MRD-positive and MRD-negative groups are compared in patients with HER2-positive early breast cancer who undergo surgery after receiving NAC.</p><p><strong>Methods and analysis: </strong>Circulating tumor DNA (ctDNA) levels of patients will be evaluated 6 times: before NAC, after NAC, after surgery, and annually after surgery for 3 years. We will analyze the genetic profile of blood and tissue samples using the Todai OncoPanel (TOP) and the methylation level of DNA. The primary endpoint is IDFS. Secondary endpoints include overall survival (OS) and disease-free survival (DFS). Patient enrollment began in June 2022, and new participants are still being recruited.</p><p><strong>Ethics: </strong>This study has been approved by the National Cancer Center Hospital Certified Review Board in March 2022 and has been approved by the Research Ethics Board of the participating center.</p><p><strong>Discussion: </strong>Our findings will contribute to determining whether MRD detection using TOP is useful for predicting the recurrence of HER2-positive early breast cancer. If this is proven, MRD detected by TOP could be used in the future as a biomarker to assist in the de-/escalation of treatment strategies in the next interventional trial, thereby avoiding overtreatment in patients at low risk, and in the addition of intensive treatment modalities for those in patients at high risk.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"18 ","pages":"11782234241288671"},"PeriodicalIF":1.8,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11528640/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ENO1 as a Biomarker of Breast Cancer Progression and Metastasis: A Bioinformatic Approach Using Available Databases.","authors":"Athina Giannoudis, Alistair Heath, Vijay Sharma","doi":"10.1177/11782234241285648","DOIUrl":"10.1177/11782234241285648","url":null,"abstract":"<p><strong>Background: </strong>Metabolic reprogramming is one of the hallmarks of cancer, and in breast cancer (BC), several metabolic enzymes are overexpressed and overactivated. One of these, Enolase 1 (ENO1), catalyses glycolysis and is involved in the regulation of multiple signalling pathways.</p><p><strong>Objectives: </strong>This study aimed to evaluate in silico the prognostic and predictive effects of ENO1 expression in BC.</p><p><strong>Design: </strong>This is a bioinformatic in silico analysis.</p><p><strong>Methods: </strong>Using available online platforms (Kaplan-Meier [KM] plotter, receiver operating characteristic curve [ROC] plotter, cBioPortal, Genotype-2-Outcome [G-2-O], MethSurv, and Tumour-Immune System Interaction Database [TISIDB]), we performed a bioinformatic in silico analysis to establish the prognostic and predictive effects related to ENO1 expression in BC. A network analysis was performed using the Oncomine platform, and signalling, epigenetic, and immune regulation pathways were explored.</p><p><strong>Results: </strong>ENO1 was overexpressed in all the analysed Oncomine, epigenetic, and immune pathways in triple-negative, but not in hormone receptor-positive BCs. In human epidermal growth factor receptor 2 (HER2)-positive BCs, ENO1 expression showed a mixed profile. Analysis on disease progression and histological types showed ENO1 overexpression in ductal in situ and invasive carcinoma, in high-grade tumours followed by advanced or metastasis and was linked to worse survival. High ENO1 expression was also associated with relapse-free, distant metastasis-free and overall survival, irrespectively of treatment and was mainly related to basal subtype.</p><p><strong>Conclusion: </strong>ENO1 overexpression recruits a range of signalling pathways during disease progression conferring a worse prognosis and can be potentially used as a biomarker of disease progression and therapeutic target, particularly in triple-negative and in ductal invasive carcinoma.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"18 ","pages":"11782234241285648"},"PeriodicalIF":1.8,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11526306/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142557172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quality of Life in Female Breast Cancer Patients and Survivors in a South African Municipality.","authors":"Rebecca Wilkinson, Lynn Smith","doi":"10.1177/11782234241282519","DOIUrl":"10.1177/11782234241282519","url":null,"abstract":"<p><strong>Background: </strong>Breast cancer diagnosis and treatment processes affect patients physically and mentally, and have an impact on their quality of life, even years after receiving treatment.</p><p><strong>Objectives: </strong>The objective of this study was to determine the quality of life in female breast cancer patients and survivors in a South African context. The municipality within which participants were recruited for this study was Ekurhuleni, based in the Gauteng province, South Africa.</p><p><strong>Design: </strong>This study followed a cross-sectional research design. Quantitative data was collected.</p><p><strong>Methods: </strong>The Quality-of-Life Patient/Cancer Survivor Version (2012) was used to determine participants' quality of life in 4 subscales, namely, physical, psychological, social, and spiritual. The questionnaire was accessible to participants via the online Google Forms platform as well as in hard-copy format at local medical facilities. The Statistical Package for Social Sciences (SPSS) was used to compute statistics, and the level of significance was set at 95% (<i>P</i> < .05).</p><p><strong>Results: </strong>One hundred female breast cancer patients and survivors from the region of Ekurhuleni, South Africa, took part in this study. The findings demonstrate that the quality-of-life subscale with the highest score was spiritual well-being (6.66 ± 2.07) and the lowest was psychological well-being (4.91 ± 1.93). No significant difference was found between quality of life and type of facility attended. Significant differences were found in quality-of-life ratings between breast cancer patient and breast cancer survivor populations.</p><p><strong>Conclusion: </strong>Breast cancer can result in a compromised quality of life, and with the increased prevalence and survival rate of breast cancer patients, both the short- and long-term effects of the condition and its treatments are heightened.</p>","PeriodicalId":9163,"journal":{"name":"Breast Cancer : Basic and Clinical Research","volume":"18 ","pages":"11782234241282519"},"PeriodicalIF":1.8,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11465291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142399410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}