Hematoporphyrin monomethyl ether-mediated sonodynamic therapy induces A-253 cell apoptosis.

Hematoporphyrin monomethyl ether-mediated sonodynamic therapy induces A-253 cell apoptosis. Oncol Lett. 2020 Apr;19(4):3223-3228 Authors: Zhang Y, Bi L, Hu Z, Cao W, Zhuang D Abstract It has been found that>90% of oral cancer patients suffer from squamous cell carcinoma (SCC). The 5-year survival rate of SCC is ~50%, despite the availability of different treatments. Sonodynamic therapy (SDT) has been developed as a novel therapy for cancer, resisting bacterial infection and inhibiting atherosclerotic plaque progression. The present study investigated the efficacy of hematoporphyrin monomethyl ether (HMME)-mediated SDT on the A-253 epidermoid cancer cell line. The cytotoxicity of HMME and the survival rate of cells following SDT were examined by the MTT assay. Apoptosis and necrosis of cells were detected using flow cytometry with Annexin V and propidium iodide (PI) staining, and fluorescence microscopy with Hoechst 33258 and PI staining. Intracellular reactive oxygen species (ROS) and Ca2+ levels were measured using a fluorescence microscope based on 2',7'-dichlorofluorescein diacetate and fluo-3/acetoxymethylester, respectively. Results of the MTT assay demonstrated that a lower concentration (
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research

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Publication date: Available online 7 February 2020Source: British Journal of Oral and Maxillofacial SurgeryAuthor(s): S.G. Brouwer de Koning, M.B. Karakullukcu, C.A.H. Lange, W.H. Schreuder, L.H.E. Karssemakers, T.J.M. RuersAbstractWe wanted to find out whether ultrasound (US) can be used to assess the deep resection margins after excision of squamous cell carcinoma (SCC) of the tongue, as intraoperative feedback on their condition might help to prevent them being too close. Resected specimens of cancers of the tongue from 31 patients with SCC of the tongue were suspended in US gel and scanned with a small 5-10 MHz US...
Source: British Journal of Oral and Maxillofacial Surgery - Category: ENT & OMF Source Type: research
Authors: Asai S, Fukaya M, Fujieda H, Igami T, Tsunoda N, Sakatoku Y, Kamei Y, Miyata K, Nagino M Abstract A 71-year-old woman with dysphagia was diagnosed with thoracic esophageal squamous cell carcinoma by endoscopic biopsy at another hospital. She had previously undergone partial breast excision with axillary lymph node dissection for right breast cancer eleven years earlier and subtotal stomach-preserving pancreatoduodenectomy with Child's reconstruction for ampullary cancer ten years earlier. Gastrointestinal endoscopy showed a stricture due to a bulging submucosal tumor in the mid-thoracic esophagus. The tumo...
Source: Nagoya Journal of Medical Science - Category: International Medicine & Public Health Tags: Nagoya J Med Sci Source Type: research
AbstractPurpose of ReviewSurgical management of locally advanced oral cavity squamous cell carcinomas (OCSCC) has long been recognized as a primary treatment modality. Technological advances have led to significant improvements in our surgical approach, from improvement in the visualization of tumors to more efficient and precise reconstruction. Here, we review the latest technological advances in surgical extirpation and reconstruction of locally advanced OCSCCs.Recent FindingsThe focus of technological innovation in surgical extirpation has been on improving visualization, with the use of intraoperative ultrasound for ma...
Source: Current Oncology Reports - Category: Cancer & Oncology Source Type: research
Conclusion: This study indicates that tumor margin demarcation combined with SN identification has potential but that some practical challenges need to be overcome if this technique is to mature as a surgical guidance concept. Future studies need to define whether the technology can improve the radical nature of the resections.
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Translational Source Type: research
This report supports that the novel mutation of RNF139 p.Q650R probably serve as a key role in HBs progression. Introduction Central nervous system hemangioblastomas (HBs) are benign tumors which usually occur in cerebellum (1), and the pathogenesis of HBs is still unknown. According to the revised World Health Organization (WHO) classification of tumors of the nervous system published in 2000, HBs were classified to the tumors of uncertain histogenesis. The morphology code of the International Classification of Diseases for Oncology (ICD-O)is 9161/1, grade I. HBs are composed of mesenchymal cells and abundant capi...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
This study was conducted to compare histological margins and duration of surgery between ultrasonic coagulation device and electrodiathermy in the resection of oral tongue tumours. A retrospective analysis was performed comprising patients undergoing wide excision for squamous cell carcinoma of the lateral tongue, with either ultrasonic coagulation device or conventional electrodiathermy at Our Institute in Mumbai, India, from October 2015 to December 2016. Single factor ANOVA with the level of significance set at 95% and alpha value of 0.05. Patients who underwent excision with ultrasonic coagulation devicebetter histolog...
Source: Indian Journal of Surgical Oncology - Category: Cancer & Oncology Source Type: research
Oral squamous cell carcinoma (OSCC) invades surrounding tissues by upregulating matrix metalloproteinases (MMPs) -2 and −9, which causes over-expression of the Hedgehog signaling proteins Shh and Gli-1 and deg...
Source: Journal of Experimental and Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Research Source Type: research
Conclusions: Population level of iAs% and DMA%, but not MMA%, were associated with arsenic exposure levels. Overall, study findings suggest that higher MMA% was associated with an increased risk of cancer and cardiovascular disease, while lower MMA% was associated with an increased risk of diabetes and metabolic syndrome. Additional population-based studies and experimental studies are needed to further evaluate and understand the role of arsenic exposure in arsenic metabolism and the role of arsenic metabolism in disease development. https://doi.org/10.1289/EHP577 Received: 01 June 2016 Revised: 26 February 2017 Acce...
Source: EHP Research - Category: Environmental Health Authors: Tags: Research Source Type: research
We present a case of a lingual lymph node metastasis from an early tongue cancer. Sonography demonstrated a small nonpalpable lingual node on the floor of the mouth. The patient underwent complete surgical resection and had no evidence of recurrence 5 years later. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound, 2017
Source: Journal of Clinical Ultrasound - Category: Radiology Authors: Tags: Case Report Source Type: research
Publication date: Available online 21 December 2016 Source:Journal of Cranio-Maxillofacial Surgery Author(s): Angel Rollon-Mayordomo, Teresa Creo-Martinez, Yolanda Marin-Lapeira, Juan-Andres Rodriguez-Ruiz, Pedro Infante-Cossio The aim of this study was to evaluate preoperative ultrasound criteria to detect lymph node (LN) cervical metastasis in patients with clinically node-negative neck (cN0) oral cavity squamous cell carcinoma (OCSCC). A prospective, single-center, observational study was conducted in 90 patients undergoing cancer excision with or without elective neck dissection (END) between 2005 and 2012. A surgeon ...
Source: Journal of Cranio Maxillofacial Surgery - Category: ENT & OMF Source Type: research
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