Widespread screening mammography programmes mean that ductal carcinoma in situ (DCIS), a pre-invasive breast lesion, is now more frequently diagnosed. However, not all diagnosed DCIS lesions progress to invasive breast cancer, which presents a dilemma for clinicians. As such, there is much interest in studying DCIS in the laboratory, in order to help understand more about its biology and determine the characteristics of those that progress to invasion. Greater knowledge would lead to targeted and better DCIS treatment. Here, we outline some of the models available to study DCIS, with a particular focus on animal-free systems.
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A practical distribution pattern of α-SMA-positive carcinoma associated fibroblasts indicates poor prognosis of patients with pancreatic ductal adenocarcinoma.
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January 2025
Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Naval Medical University (Second Military Medical University), 168 Changhai Road, Shanghai 200433, China. Electronic address:
Purpose The present study aimed to clarify the distribution pattern of carcinoma associated fibroblasts (CAFs) across pancreatic ductal adenocarcinoma (PDAC) and its prognostic prediction value. Methods Data of two cohorts were retrospectively collected from consecutive patients who underwent primary pancreatic resection from January 2015 to December 2017. We used tumor specimens to screen out the most suitable markers for the spatial distribution analysis for CAFs subpopulations.
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World J Urol
January 2025
Department of Urology, Saint Marianna University School of Medicine, Kawasaki, Japan.
Purposes: This study aimed to clarify the clinical outcomes of Bacillus Calmette-Guérin (BCG) treatment in patients with urothelial carcinoma (UC) of the prostatic urethra.
Methods: Between August 2003 and January 2023, 428 patients with non-muscle-invasive UC received BCG treatment (Tokyo strain, 80 mg, ≥ 5 times) in our hospital; 39 had UC of the prostatic urethra. We evaluated the cumulative incidence of intravesical recurrence, progression (muscle-invasive bladder cancer [MIBC] or metastasis), and subsequent radical cystectomy after BCG treatment in patients with UC of the prostatic urethra.
The Current Role of Circulating Tumor DNA in the Management of Pancreatic Cancer.
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Division of Surgical Oncology, Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Pancreatic ductal adenocarcinoma (PDAC) is projected to be the second leading cause of cancer-related death by 2030. Early identification is rare, with a 5-year overall survival (OS) of less than 10%. Advances in the understanding of PDAC tumor biology are needed to improve these outcomes.
View Article and Find Full Text PDFAberrant E-cadherin Expression in Lobular Carcinoma In Situ: A Comprehensive Immunohistochemical Evaluation of N-terminal, Extracellular, and C-terminal E-cadherin Domains.
Am J Surg Pathol
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Instituto de Anatomia Patológica, Faculdade de Medicina da Universidade de Lisboa.
E-cadherin (E-cad) immunohistochemistry is commonly used to distinguish lobular carcinoma in situ (LCIS) from ductal carcinoma in situ in histologically uncertain or ambiguous cases. Although most LCIS cases show an absence of E-cad expression on the neoplastic cell membranes, some show aberrant E-cad expression which can lead to diagnostic confusion. Awareness and understanding of the frequency, patterns, and distribution of aberrant E-cad staining in LCIS is crucial to achieving a correct diagnosis.
View Article and Find Full Text PDFImpact of a 7-Gene Predictive Biosignature on Adjuvant Radiation Therapy Recommendations in Patients Undergoing Breast-Conserving Surgery for Ductal Carcinoma in Situ.
J Am Coll Surg
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Department of Surgery, Thomas Jefferson University, Philadelphia PA.
Background: Breast conservation therapy for patients with DCIS includes breast conserving surgery (BCS) with post-operative radiotherapy (RT). Because RT does not impact overall survival, identifying women who do not benefit from RT would allow de-escalation of therapy. We evaluated the impact of a novel 7-gene DCIS biosignature on adjuvant radiation recommendations for patients undergoing BCS for DCIS.
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