Cancers (Basel)
September 2024
Mucosal melanoma of the head and neck (HNMM) is a rare but highly aggressive malignancy, often diagnosed at an advanced stage with poor prognosis. This review discusses current treatment strategies, emphasizing the role of radiotherapy in managing this challenging disease. A comprehensive analysis of 33 studies provides updated information on techniques and outcomes, highlighting the consistent benefit of adjuvant radiation in improving local control.
View Article and Find Full Text PDFWe tested the effect of substituents at the (1) C3´, C3´N, (2) C10, and (3) C2-meta-benzoate positions of taxane derivatives on their activity against sensitive versus counterpart paclitaxel-resistant breast (MCF-7) and ovarian (SK-OV-3) cancer cells. We found that (1) non-aromatic groups at both C3´ and C3´N positions, when compared with phenyl groups at the same positions of a taxane derivative, significantly reduced the resistance of ABCB1 expressing MCF-7/PacR and SK-OV-3/PacR cancer cells. This is, at least in the case of the SB-T-1216 series, accompanied by an ineffective decrease of intracellular levels in MCF-7/PacR cells.
View Article and Find Full Text PDFIntroduction: Early studies show conflicting findings regarding particulate matter ≤ 2.5 μm in diameter (PM) exposure and development of head and neck cancers (HNC). We analyzed the relationship between PM exposure and various types of HNC in a nationally representative ecological sample.
View Article and Find Full Text PDFProper immobilization is critical for the delivery of high-quality radiation therapy. In cases when traditional immobilization is not feasible, 3-dimensional (3D) printing may provide a better-tolerated custom immobilization that is comparably effective. We present the successful treatment of a patient with inoperable oropharyngeal squamous cell carcinoma who was unable to tolerate traditional immobilization.
View Article and Find Full Text PDFBackground: We aim to describe outcomes of elderly patients undergoing salvage surgery for laryngeal cancer and to characterize the interplay of age with various other factors in this growing population.
Methods: Using the National Cancer Database, we identified cases of salvage laryngectomy in patients who failed chemoradiation. An age cutoff of 70 years was used to separate subjects into two groups.
Curr Treat Options Oncol
June 2023
Epidermal growth factor receptor (EGFR) is commonly overexpressed in many head and neck squamous cell carcinomas (HNSCC). With the success of EGFR inhibition in other cancer types, there was optimism for efficacy in HNSCC. Unfortunately, the clinical outcomes of EGFR-directed therapy have not provided overwhelming benefit.
View Article and Find Full Text PDFA limited number of studies are devoted to regulating expression in cancer. Hence, we aimed to unveil the regulation of expression in MCF-7 breast cancer cells (with high expression) and taxane-resistant MCF-7 sublines (manifesting even higher expression). We found that transcription is regulated primarily by the cyclic AMP response element (CRE) in hypomethylated proximal promoters in both taxane-sensitive and taxane-resistant MCF-7 cells.
View Article and Find Full Text PDFIntroduction With the incorporation of modernized radiotherapy, chemotherapy, and immunotherapy, treatment outcomes have improved for patients with locally advanced, unresectable diseases. Elderly or poor performance status patients comprise more than half of non-small cell lung cancer (NSCLC) patients, but they are often underrepresented or excluded in clinical trials. Split-course concurrent chemoradiotherapy can be an effective treatment, showing good adherence and a favorable toxicity profile for unresectable, locally advanced NSCLC.
View Article and Find Full Text PDFBackground/aim: There is significant variation in post-treatment surveillance imaging for sinonasal malignancies. This study examined the utility of surveillance imaging in detecting recurrence in patients treated for sinonasal malignancies.
Patients And Methods: We performed a retrospective review on an IRB-approved dataset of patients with sinonasal malignancies treated at a single institution between 2005 to 2021.
Recently, we described a phenomenon whereby apoptotic cells generate and release CrkI-containing microvesicles, which stimulate proliferation in surrounding cells upon contact to compensate for their own demise. We termed these microvesicles "ACPSVs" for Apoptotic Compensatory Proliferation Signaling microvesicles. As immune cells and a majority of current cancer therapeutics destroy tumor cells primarily by apoptosis, we conducted a small pilot study to assess the possibility that ACPSVs may also be generated in squamous cell carcinomas.
View Article and Find Full Text PDFThe main problem precluding successful therapy with conventional taxanes is de novo or acquired resistance to taxanes. Therefore, novel experimental taxane derivatives (Stony Brook taxanes; SB-Ts) are synthesized and tested as potential drugs against resistant solid tumors. Recently, we reported alterations in , , and gene expression in a breast cancer cell line resistant to paclitaxel.
View Article and Find Full Text PDFIntroduction: Previous studies have evaluated stereotactic body radiotherapy (SBRT) in oligometastatic patients with NSCLC, including multimodality treatment with anti-programmed cell death protein-1 monotherapy. Questions remain regarding the timing of SBRT and immunotherapy, safety with dual checkpoint blockade, and the utility in widely metastatic patients. This randomized phase 1 trial combined nivolumab and ipilimumab with sequential or concurrent multisite SBRT in patients with stage IV NSCLC to evaluate safety and obtain preliminary activity data.
View Article and Find Full Text PDFObjectives: We report the results of this phase I study to evaluate the maximum tolerated dose (MTD) and safety of veliparib, a poly(ADP-ribose) polymerase (PARP) inhibitor, combined with carboplatin and paclitaxel induction chemotherapy (IC) for locoregionally advanced head and neck squamous cell carcinoma (HNSCC).
Materials And Methods: In a 3 + 3 cohort design, patients with stage IVA-B human papillomavirus-negative HNSCC received 2 cycles of carboplatin (AUC 6, day 1), paclitaxel (100 mg/m, days 1, 8, 15) and veliparib (days 1-7) every 21 days followed by standard curative-intent chemoradiotherapy. Primary endpoint: MTD and recommended phase II dose (RP2D) as determined by the first IC cycle.
Osimertinib, a third‐generation EGFR tyrosine kinase inhibitor (TKI), is the new first line standard of care in metastatic non‐small cell lung cancer (NSCLC) based on improvements in overall survival (OS), control of central nervous system (CNS) disease, and a superior toxicity profile. This commentary highlights interim results from the ADAURA trial, continuing the effort to establish a role for EGFR TKIs in the adjuvant setting.
View Article and Find Full Text PDFAt least half of all heart failure (CHF) patients will have a comorbidity that could be undertreated, requires additional speciality input and/or polypharmacy. These patients are then at risk of iatrogenic and disease-related complications and readmissions if not closely supervised. Common comorbidities of relevance are cardiorenal and cardiometabolic syndromes (DM, obesity, OSA), chronic airways disease, elderly age, and accompanying pharmacotherapies.
View Article and Find Full Text PDFMany compounds have the potential to harm pancreatic beta-cells; organochlorine pollutants belong to those compounds. In this work, we aimed to find markers of acute toxicity of p,p'-DDT exposure among proteins expressed in NES2Y human pancreatic beta-cells employing 2-D electrophoresis. We exposed NES2Y cells to a high concentration (150 μM, LC96 after 72 hours) of p,p'-DDT for 24 and 30 hours and determined proteins with changed expression using 2-D electrophoresis.
View Article and Find Full Text PDFBackground: There are well-documented treatment gaps in secondary prevention of coronary heart disease with a lack of clearly defined strategies to assist early physical activity after acute coronary syndromes (ACS). Smartphone technology may provide an innovative platform to close these gaps.
Objectives: The primary goal of this study was to assess whether a smartphone-based, early cardiac rehabilitation program improved exercise capacity in patients with ACS.
Background: The coronavirus disease 2019 (COVID-19) pandemic has introduced a major disruption to the delivery of routine health care across the world. This provides challenges for the use of secondary prevention measures in patients with established atherosclerotic cardiovascular disease (CVD). The aim of this Position Statement is to review the implications for effective delivery of secondary prevention strategies during the COVID-19 pandemic.
View Article and Find Full Text PDFMicrotubule-targeting agents (MTAs) constitute a diverse group of chemical compounds that bind to microtubules and affect their properties and function. Disruption of microtubules induces various cellular responses often leading to cell cycle arrest or cell death, the most common effect of MTAs. MTAs have found a plethora of practical applications in weed control, as fungicides and antiparasitics, and particularly in cancer treatment.
View Article and Find Full Text PDFPersistent organochlorine pollutants (POPs) gradually accumulate in the human organism due to their presence in the environment. Some studies have described a correlation between the level of POPs in the human body and the incidence of diabetes, but we know little about the direct effect of POPs on pancreatic beta-cells. We exposed pancreatic beta-cells INS1E to non-lethal concentrations of p,p'-DDT (1,1'-(2,2,2-Trichloroethane-1,1-diyl)bis(4-chlorobenzene)) and p,p'-DDE (1,1'-(2,2-dichloroethene-1,1-diyl)bis(4-chlorobenzene)) for 1 month, and assessed changes in protein expression and the intracellular insulin level.
View Article and Find Full Text PDFIdentification of novel proteins with changed expression in resistant cancer cells could be helpful in elucidation mechanisms involved in the development of acquired resistance to paclitaxel. In this study, we carried out a 2D-PAGE using the mitochondrial-enriched fraction from paclitaxel-resistant MCF7/PacR cells compared to original paclitaxel-sensitive MCF7 breast cancer cells. Differentially expressed proteins were identified employing mass spectrometry.
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