Purpose: Metallothionein, a low molecular weight intracellular protein, binds mitomycin with high affinity protecting the tumor DNA. We prospectively studied the relationship of metallothionein expression in bladder transitional cell carcinoma and resistance to intravesical mitomycin.
Materials And Methods: A series of 45 consecutive patients with superficial transitional cell carcinoma treated with intravesical mitomycin were studied. Resected tumor tissues were stained with metallothionein monoclonal antibody E9. Two pathologists scored staining intensity and distribution. All patients were followed with regular flexible cystoscopy.
Results: Median patient age was 73 years (range 44 to 89). Tumor grade was 1 to 3 in 6, 33 and 6 cases, respectively. In 20 patients (44.44%) tumor recurred after mitomycin therapy. Median cytoplasmic staining scores for recurrent and nonrecurrent tumors were 5 (range 0 to 61) and 0 (0 to 14), respectively. Median nuclear staining scores for recurrent and nonrecurrent tumors were 3 (range 0 to 56) and 0 (0 to 11), respectively. Median followup of patients without recurrence was 18 months (range 12 to 36). Nuclear and cytoplasmic staining scores were significantly higher in recurrent than in nonrecurrent tumors. There was no significant relationship of metallothionein expression with tumor grade.
Conclusions: Over expression of metallothionein predicts the resistance of bladder transitional cell carcinoma to intravesical mitomycin therapy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/01.ju.0000036757.81027.b8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Highly multiplexed imaging reveals prognostic immune and stromal spatial biomarkers in breast cancer.
JCI Insight
January 2025
Department of Biomedical Engineering, Oregon Health and Science University, Portland, United States of America.
Spatial profiling of tissues promises to elucidate tumor-microenvironment interactions and generate prognostic and predictive biomarkers. We analyzed single-cell, spatial data from three multiplex imaging technologies: cyclic immunofluorescence (CycIF) data we generated from 102 breast cancer patients with clinical follow-up, and publicly available imaging mass cytometry and multiplex ion-beam imaging datasets. Similar single-cell phenotyping results across imaging platforms enabled combined analysis of epithelial phenotypes to delineate prognostic subtypes among estrogen-receptor positive (ER+) patients.
View Article and Find Full Text PDFBaicalein attenuates ovalbumin-induced allergic rhinitis through the activation of nuclear receptor subfamily 4 group a member 1.
Immunol Res
January 2025
Department of Otolaryngology, Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao Hiser Hospital Affiliated of Qingdao University, Qingdao, 266033, Shandong, People's Republic of China.
Baicalein, one of the major active flavonoids found in Scutellaria baicalensis, has been revealed to exhibit potent anti-inflammatory properties in allergic airway inflammation. This study aimed to explore the role of baicalein and its relevant mechanism in the treatment of allergic rhinitis (AR). The bioinformatics tools were used to predict the targets of baicalein and AR-related genes.
View Article and Find Full Text PDFNarciclasine attenuates sepsis-associated acute kidney injury through the ESR1/S100A11 axis.
Funct Integr Genomics
January 2025
Department of Emergency and Critical Care Medicine, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, People's Republic of China.
Narciclasine (Ncs) was effective in sepsis management due to its antioxidant properties. The present study dissected the protective effects of Ncs against sepsis-associated acute kidney injury (SA-AKI) and the molecular mechanisms. The SA-AKI mice were developed using cecum ligation and puncture and pretreated with Ncs and adenoviruses.
View Article and Find Full Text PDFCharacterization and design of dipeptide media formulation for scalable therapeutic production.
Appl Microbiol Biotechnol
January 2025
School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-Ro, Jangan-GuGyeonggi-Do 16419, Suwon-Si, South Korea.
Process intensification and simplification in biopharmaceutical manufacturing have driven the exploration of advanced feeding strategies to improve culture performance and process consistency. Conventional media design strategies, however, are often constrained by the stability and solubility challenges of amino acids, particularly in large-scale applications. As a result, dipeptides have emerged as promising alternatives.
View Article and Find Full Text PDFClinical outcome of BCG treatment for patients with urothelial carcinoma of the prostatic urethra: Implications for early cystectomy.
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.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!