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Tierarztliche Praxis. Ausgabe K,... Apr 2024A captive 15-year-old male common raven () was presented for post-mortem examination. It had been previously presented to a local veterinarian due to a 3-4 weeks long...
A captive 15-year-old male common raven () was presented for post-mortem examination. It had been previously presented to a local veterinarian due to a 3-4 weeks long history of abnormal respiratory sounds. Upon admission, the bird demonstrated severe dyspnea and a massive amount of mucous in the oropharynx. After symptomatic treatment, dyspnea deteriorated dramatically, and euthanasia was elicited because of poor prognosis. The necropsy revealed a 2.65 x 2.15 x 2.18 cm expansile and poorly delineated cauliflower-shaped mass around the glottis and extending inside the tracheal lumen. Additionally, a dilated salivary gland in the adjacent tissue and multifocal reddish-fleshy areas in the lung parenchyma were detected. Histopathological examination identified the mass as moderately differentiated, tubular adenocarcinoma with invasive growth and moderate to marked cellular atypia and numerous mitoses. The presumptive origin of the neoplasia was one of the salivary glands. Multiple metastases were identified in the lung both macroscopically and histologically. Bacterial culture and molecular testing for West Nile and Usutu viruses were negative. To the authors' knowledge, this is the first report of metastatic laryngeal and oropharyngeal adenocarcinoma in a common raven.
Topics: Animals; Male; Lung Neoplasms; Adenocarcinoma; Bird Diseases; Oropharyngeal Neoplasms; Laryngeal Neoplasms; Fatal Outcome
PubMed: 38701808
DOI: 10.1055/a-2289-1297 -
Laryngo- Rhino- Otologie May 2024
Topics: Humans; Papillomavirus Infections; Oropharyngeal Neoplasms; Carcinoma, Squamous Cell
PubMed: 38697086
DOI: 10.1055/a-2287-8402 -
Journal of Clinical Oncology : Official... Jun 2024Osteoradionecrosis of the jaw (ORN) can manifest in varying severity. The aim of this study is to identify ORN risk factors and develop a novel classification to depict...
PURPOSE
Osteoradionecrosis of the jaw (ORN) can manifest in varying severity. The aim of this study is to identify ORN risk factors and develop a novel classification to depict the severity of ORN.
METHODS
Consecutive patients with head and neck cancer (HNC) treated with curative-intent intensity-modulated radiation therapy (IMRT) (≥45 Gy) from 2011 to 2017 were included. Occurrence of ORN was identified from in-house prospective dental and clinical databases and charts. Multivariable logistic regression model was used to identify risk factors and stratify patients into high-risk and low-risk groups. A novel ORN classification system was developed to depict ORN severity by modifying existing systems and incorporating expert opinion. The performance of the novel system was compared with 15 existing systems for their ability to identify and predict serious ORN event (jaw fracture or requiring jaw resection).
RESULTS
ORN was identified in 219 of 2,732 (8%) consecutive patients with HNC. Factors associated with high risk of ORN were oral cavity or oropharyngeal primaries, received IMRT dose ≥60 Gy, current/ex-smokers, and/or stage III to IV periodontal condition. The ORN rate for high-risk versus low-risk patients was 12.7% versus 3.1% ( < .001) with an AUC of 0.71. Existing ORN systems overclassified serious ORN events and failed to recognize maxillary ORN. A novel ORN classification system, ClinRad, was proposed on the basis of vertical extent of bone necrosis and presence/absence of exposed bone/fistula. This system detected serious ORN events in 5.7% of patients and statistically outperformed existing systems.
CONCLUSION
We identified risk factors for ORN and proposed a novel ORN classification system on the basis of vertical extent of bone necrosis and presence/absence of exposed bone/fistula. It outperformed existing systems in depicting the seriousness of ORN and may facilitate clinical care and clinical trials.
Topics: Humans; Osteoradionecrosis; Male; Head and Neck Neoplasms; Female; Middle Aged; Aged; Radiotherapy, Intensity-Modulated; Risk Factors; Risk Assessment; Severity of Illness Index
PubMed: 38691822
DOI: 10.1200/JCO.23.01951 -
In Vivo (Athens, Greece) 2024Automated measurement of immunostained samples can enable more convenient and objective prediction of treatment outcome from radiotherapy. We aimed to validate the...
BACKGROUND/AIM
Automated measurement of immunostained samples can enable more convenient and objective prediction of treatment outcome from radiotherapy. We aimed to validate the performance of the QuPath image analysis software in immune cell markers detection by comparing QuPath cell counting results with those of physician manual cell counting.
PATIENTS AND METHODS
CD8- and FoxP3-stained cervical, CD8-stained oropharyngeal, and Ku70-stained prostate cancer tumor sections were analyzed in 104 cervical, 92 oropharyngeal, and 58 prostate cancer patients undergoing radiotherapy at our Institution.
RESULTS
QuPath and manual counts were highly correlated. When divided into two groups using ROC curves, the agreement between QuPath and manual counts was 89.4% for CD8 and 88.5% for FoxP3 in cervical cancer, 87.0% for CD8 in oropharyngeal cancer and 80.7% for Ku70 in prostate cancer. In cervical cancer, the high CD8 group based on QuPath counts had a better prognosis and the low CD8 group had a significantly worse prognosis [p=0.0003; 5-year overall survival (OS), 65.9% vs. 34.7%]. QuPath counts were more predictive than manual counts. Similar results were observed for FoxP3 in cervical cancer (p=0.002; 5-year OS, 62.1% vs. 33.6%) and CD8 in oropharyngeal cancer (p=0.013; 5-year OS, 80.2% vs. 47.2%). In prostate cancer, high Ku70 group had worse and low group significantly better outcome [p=0.007; 10-year progression-free survival (PFS), 56.0% vs. 93.8%].
CONCLUSION
QuPath showed a strong correlation with manual counting, confirming its utility and accuracy and potential applicability in clinical practice.
Topics: Humans; Male; Female; Prognosis; Middle Aged; Software; Aged; Treatment Outcome; Biomarkers, Tumor; Adult; Ku Autoantigen; Forkhead Transcription Factors; Prostatic Neoplasms; ROC Curve; CD8 Antigens; Image Processing, Computer-Assisted; Immunohistochemistry; Neoplasms
PubMed: 38688633
DOI: 10.21873/invivo.13593 -
Cureus Mar 2024With oropharyngeal cancer incidence rising globally, largely due to human papillomavirus (HPV), and hypopharyngeal cancer known for poor outcomes, innovative treatments... (Review)
Review
With oropharyngeal cancer incidence rising globally, largely due to human papillomavirus (HPV), and hypopharyngeal cancer known for poor outcomes, innovative treatments are needed. Transoral robotic surgery (TORS) offers a minimally invasive approach that may improve upon traditional open surgery and radiotherapy/chemoradiotherapy (RT/CRT) methods. We conducted a literature review and included 40 PubMed studies comparing TORS, open surgery, and RT/CRT for oropharyngeal and hypopharyngeal squamous cell carcinoma (SCC), focusing on survival rates and swallowing function outcomes. TORS provides favorable survival outcomes and typically results in superior swallowing function post-treatment compared to other therapeutic modalities in both oropharyngeal and hypopharyngeal SCCs. The clinical benefits of TORS, including improved operative precision and minimized tissue disruption, along with the elimination of surgical incision recovery and reduced RT toxicity, suggest it is a valuable surgical approach for head and neck cancers.
PubMed: 38681419
DOI: 10.7759/cureus.57186 -
Asian Pacific Journal of Cancer... Apr 2024To identify swallowing-related structures (SRSs) predicting post-radiotherapy dysphagia in oropharyngeal carcinoma patients.
OBJECTIVE
To identify swallowing-related structures (SRSs) predicting post-radiotherapy dysphagia in oropharyngeal carcinoma patients.
MATERIAL AND METHODS
Between September 2020 and October 2022, oropharyngeal cancer patients who had completed radiotherapy at least one year before without recurrence or residuals were selected. They underwent flexible endoscopic evaluation of swallowing (FEES) assessments and dysphagia grading. The mean radiation doses delivered to their SRSs were recalculated. The correlation between radiation doses to each SRS and FEES scores was analysed.
RESULTS
Twenty-nine participants, aged 51-73 years, were enrolled. Six patients had received two-dimensional radiotherapy, eight had undergone three-dimensional conformal radiotherapy, and fifteen had received intensity-modulated radiation therapy. Radiation doses to the inferior pharyngeal constrictor, cricopharyngeus and glottic larynx significantly predicted dysphagia for both semisolids (p = 0.023, 0.030 and 0.001) and liquid diets (p = 0.021, 0.013 and 0.002). The esophageal inlet significantly predicted swallowing outcomes for only the liquid diet (p = 0.007).
CONCLUSIONS
This study supports that SRS-sparing during radiotherapy for oropharyngeal cancers improves swallowing outcomes.
Topics: Humans; Deglutition Disorders; Middle Aged; Male; Oropharyngeal Neoplasms; Female; Aged; Radiotherapy, Intensity-Modulated; Follow-Up Studies; Prognosis; Deglutition; Radiation Injuries; Radiotherapy, Conformal; Radiotherapy Dosage; Organ Sparing Treatments
PubMed: 38680007
DOI: 10.31557/APJCP.2024.25.4.1451 -
Free Radical Biology & Medicine Aug 2024Cancer of the head and neck encompasses a wide range of cancers, including oral and oropharyngeal cancers. Oral cancer is often diagnosed at advanced stages and has a...
Marine-derived antimicrobial peptide piscidin-1 triggers extrinsic and intrinsic apoptosis in oral squamous cell carcinoma through reactive oxygen species production and inhibits angiogenesis.
Cancer of the head and neck encompasses a wide range of cancers, including oral and oropharyngeal cancers. Oral cancer is often diagnosed at advanced stages and has a dismal prognosis. Piscidin-1, a marine antimicrobial peptide (AMP) containing approximately 22 amino acids, also exhibits significant anticancer properties. We investigated the possible anti-oral cancer effects of piscidin-1 and clarified the mechanisms underlying these effects. We treated the oral squamous cell carcinoma cell lines OC2 and SCC4 with piscidin-1. Cell viability and the expression of different hallmark apoptotic molecules, including reactive oxygen species (ROS), were tested using the appropriate MTT assay, flow cytometry and western blotting assays, and human umbilical vein endothelial cell (HUVEC) wound healing, migration, and tube formation (angiogenesis) assays. Piscidin-1 increases cleaved caspase 3 levels to induce apoptosis. Piscidin-1 also increases ROS levels and intensifies oxidative stress in the endoplasmic reticulum and mitochondria, causing mitochondrial dysfunction. Additionally, it decreases the oxygen consumption rates and activity of mitochondrial complexes I-V. As expected, the antioxidants MitoTEMPOL and N-acetylcysteine reduce piscidin-1-induced ROS generation and intracellular calcium accumulation. Piscidin-1 also inhibits matrix metalloproteinase (MMP)-2/-9 expression in HUVECs, affecting migration and tube formation angiogenesis. We demonstrated that piscidin-1 can promote apoptosis via both intrinsic and extrinsic apoptotic pathways and findings indicate that piscidin-1 has anti-proliferative and anti-angiogenic properties in oral cancer treatment. Our study on piscidin-1 thus provides a basis for future translational anti-oral cancer drug research and a new theoretical approach for anti-oral cancer clinical research.
Topics: Humans; Reactive Oxygen Species; Apoptosis; Mouth Neoplasms; Neovascularization, Pathologic; Human Umbilical Vein Endothelial Cells; Antimicrobial Cationic Peptides; Cell Line, Tumor; Carcinoma, Squamous Cell; Fish Proteins; Mitochondria; Cell Movement; Cell Proliferation; Cell Survival; Oxidative Stress; Angiogenesis Inhibitors; Animals; Angiogenesis
PubMed: 38679300
DOI: 10.1016/j.freeradbiomed.2024.04.235 -
Anticancer Research May 2024Human papillomavirus positive (HPV) oropharyngeal squamous cell carcinoma (OPSCC) is rising in incidence. Compared to HPV-negative (HPV) OPSCC, HPV cases have a better...
BACKGROUND/AIM
Human papillomavirus positive (HPV) oropharyngeal squamous cell carcinoma (OPSCC) is rising in incidence. Compared to HPV-negative (HPV) OPSCC, HPV cases have a better 5-year survival. With its severe side-effects, today's chemoradiotherapy has not improved outcome compared to radiotherapy alone, so new therapies are needed. Mutations in phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA), fibroblast growth factor receptor 3 (FGFR3) and cell division cycle 27 (CDC27) are found in HPV OPSCC, and in vitro targeted therapy combining PI3K and FGFR inhibitors showed synergistic effects. Here the effects of targeting CDC27 with curcumin with/without various inhibitors or cisplatin on OPSCC cell lines were examined.
MATERIALS AND METHODS
Curcumin was administered to HPV OPSCC cell lines CU-OP-2, CU-OP-3 and CU-OP-20, and HPV CU-OP-17 with/without PI3K, cyclin-dependent kinase 4/6, FGFR, poly (ADP-ribose) polymerase or WEE1 inhibitors (BYL719, PD-0332991, JNJ-42756493, BMN-673 and MK-1775, respectively), or cisplatin. The cell lines were then assessed for 72 h after treatment for viability, proliferation and cytotoxicity.
RESULTS
Curcumin led to dose-dependent responses with reduced viability and proliferation; upon combining it with BYL719, additional positive effects were found for most OPSCC lines grown as monolayers, and these effects were validated in CU-OP-2 cells grown as spheroids. Curcumin with MK-1775 or PD-0332991 also elicited some positive effects on CU-OP-2 and CU-OP-17 cells.
CONCLUSION
Curcumin alone led to dose-dependent responses and when combined with BYL719, positive effects were revealed, as they were when it was combined with MK-1775 or PD-0332991, suggesting a potential use of some of these combinations for HPV OPSCC.
Topics: Humans; Curcumin; Cell Line, Tumor; Oropharyngeal Neoplasms; Phosphoinositide-3 Kinase Inhibitors; Cell Proliferation; Papillomavirus Infections; Antineoplastic Combined Chemotherapy Protocols; Papillomaviridae; Cisplatin
PubMed: 38677772
DOI: 10.21873/anticanres.16988 -
Diagnostic Cytopathology Apr 2024Malignancies of the parotid gland are relatively uncommon and in most cases are primary neoplasms; intraparotid metastases are rare. Oral and oropharyngeal squamous cell...
Malignancies of the parotid gland are relatively uncommon and in most cases are primary neoplasms; intraparotid metastases are rare. Oral and oropharyngeal squamous cell carcinoma (O- and OP-SCC) can potentially metastasize to the parotid gland or intraparotid lymph nodes. Fine-needle aspiration cytology (FNAC) serves as the initial diagnostic approach for this purpose. HPV status in FNAC specimens is relevant and can guide the diagnostic workup, indicating a potential oropharyngeal origin of the primary tumor. A small series of occult SCC metastases is presented below, in which HPV-DNA testing of FNAC specimens helped identify primary neoplasms located in the oropharynx. US-guided FNAC of parotid nodules was conducted by an experienced interventional cytopathologist in three cases. Each patient underwent assessment of direct smears, cell blocks, and liquid-based samples for HPV testing. The morphological and immunocytochemical features of SCC were documented, and real-time PCR was employed for the detection and genotyping of HPV. The role of HPV testing on FNAC specimens in pinpointing the primary neoplasms in the oropharynx is highlighted. Consequently, FNAC samples emerge as valuable diagnostic and prognostic tools in this context, providing essential insights for patient management.
PubMed: 38676309
DOI: 10.1002/dc.25334 -
Journal of Stomatology, Oral and... Apr 2024Tumors of minor salivary gland origin are uncommon lesions, representing 2-3 % of all malignant neoplasms of the upper aerodigestive tract and 9-23 % of all salivary...
INTRODUCTION
Tumors of minor salivary gland origin are uncommon lesions, representing 2-3 % of all malignant neoplasms of the upper aerodigestive tract and 9-23 % of all salivary gland tumors. The aim of this study is to report the demographic features, sites, histological types and the management and outcomes of oral and oropharyngeal minor salivary gland tumors diagnosed and treated in a University Hospital with a multidisciplinary head and neck team.
MATERIALS AND METHODS
A single-center retrospective observational study was conducted in a cohort of patients who received diagnosis of minor salivary gland carcinoma of oropharynx and oral cavity between July 30th 2000 and 30th September 2021. The following data of the included patients were collected: age, gender, smoke history, alcohol consumption, past medical history, comorbidities, anatomic location of the tumor, histopathology, staging, management, and outcomes.
RESULTS
A total of 30 cases (16 females, 14 males) of oral and oropharyngeal minor salivary gland tumors were reviewed. The most frequent histotype was polymorphous adenocarcinoma (12 patients). The majority of patients presented with low stage at diagnosis, with 66,66 % of the population classified as stage I or II at diagnosis. On the whole, 29 patients out of 30 benefitted from a surgical approach as first treatment. In 11 patients, adjuvant radiotherapy was performed and in 6 cases it was associated with chemotherapy. Brachytherapy with different timing was performed in 5 cases. The recurrence rate was 26.66 %. Overall disease specific survival at five and ten years was found to be approximately 81 % and 33 % respectively.
CONCLUSIONS
Surgery is still considered to be the gold standard of the treatment of minor salivary gland tumors. Radiation therapy, in spite of not being considered as a curative primary treatment for salivary malignancies, is extensively used as an adjuvant treatment.
PubMed: 38670345
DOI: 10.1016/j.jormas.2024.101893