Cancers, Vol. 11, Pages 1367: Hyperspectral Imaging of Head and Neck Squamous Cell Carcinoma for Cancer Margin Detection in Surgical Specimens from 102 Patients Using Deep Learning

This study investigates the performance of label-free, reflectance-based hyperspectral imaging (HSI) and autofluorescence imaging for SCC detection at the cancer margin in excised tissue specimens from 102 patients and uses fluorescent dyes for comparison. Fresh surgical specimens (n = 293) were collected during H and N SCC resections (n = 102). The tissue specimens were imaged with reflectance-based HSI and autofluorescence imaging and afterwards with two fluorescent dyes for comparison. A histopathological ground truth was made. Deep learning tools were developed to detect SCC with new patient samples (inter-patient) and machine learning for intra-patient tissue samples. Area under the curve (AUC) of the receiver-operator characteristic was used as the main evaluation metric. Additionally, the performance was estimated in mm increments circumferentially from the tumor-normal margin. In intra-patient experiments, HSI classified conventional SCC with an AUC of 0.82 up to 3 mm from the cancer margin, which was more accurate than proflavin dye and autofluorescence (both p < 0.05). Intra-patient autofluorescence imaging detected human papilloma virus positive (HPV+) SCC with an AUC of 0.99 at 3 mm and greater accuracy than proflavin dye (p < 0.05). The inter-patient results showed that reflectance-based HSI and autofluorescence imaging outperformed proflavin dye and standard red, green, and blue (RGB) images (p < 0.05). In new patients, HSI detected conventi...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research

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Authors: Pfeifer CR, Irianto J, Discher DE Abstract As a cancer cell invades adjacent tissue, penetrates a basement membrane barrier, or squeezes into a blood capillary, its nucleus can be greatly constricted. Here, we examine: (1) the passive and active deformation of the nucleus during 3D migration; (2) the nuclear structures-namely, the lamina and chromatin-that govern nuclear deformability; (3) the effect of large nuclear deformation on DNA and nuclear factors; and (4) the downstream consequences of mechanically stressing the nucleus. We focus especially on recent studies showing that constricted migration caus...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
Authors: Schumacher L Abstract Collective cell migration is a key process in developmental biology, facilitating the bulk movement of cells in the morphogenesis of animal tissues. Predictive understanding in this field remains challenging due to the complexity of many interacting cells, their signalling, and microenvironmental factors - all of which can give rise to non-intuitive emergent behaviours. In this chapter we discuss biological examples of collective cell migration from a range of model systems, developmental stages, and spatial scales: border cell migration and haemocyte dispersal in Drosophila, gastrula...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
Authors: Banerjee S, Marchetti MC Abstract Collective cell migration plays a central role in tissue development, morphogenesis, wound repair and cancer progression. With the growing realization that physical forces mediate cell motility in development and physiology, a key biological question is how cells integrate molecular activities for force generation on multicellular scales. In this review we discuss recent advances in modeling collective cell migration using quantitative tools and approaches rooted in soft matter physics. We focus on theoretical models of cell aggregates as continuous active media, where the...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
Authors: Yang Y, Jolly MK, Levine H Abstract Collective cell migration plays key roles in various physiological and pathological processes in multicellular organisms, including embryonic development, wound healing, and formation of cancer metastases. Such collective migration involves complex crosstalk among cells and their environment at both biochemical and mechanical levels. Here, we review various computational modeling strategies that have been helpful in decoding the dynamics of collective cell migration. Most of such attempts have focused either aspect - mechanical or biochemical regulation of collective cel...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
CONCLUSION: In this review, the recent findings about the renoprotective agents were evaluated and screened with respect to the use of 99mTc-DMSA , which is preclinically and clinically used for animal cases and cancer patients under the treatment by radiotherapy and chemotherapy. PMID: 31612808 [PubMed - in process]
Source: Current Radiopharmaceuticals - Category: Radiology Tags: Curr Radiopharm Source Type: research
Conclusion: These observations disclosed that Ras-ERK1/2 promoted the development of lung cancer via decreasing H3K18ac through MDM2-mediated GCN5 degradation. These findings might provide a new therapeutic strategy for lung cancer. PMID: 31613681 [PubMed - in process]
Source: Pharmaceutical Biology - Category: Drugs & Pharmacology Tags: Pharm Biol Source Type: research
New J. Chem., 2019, Accepted Manuscript DOI: 10.1039/C9NJ02990G, PaperXin Fu, Hua-qin Zhang, JUN Zhao, Lu-lu Yu, Qing-rong Liang, Yu Zhang, xiuguang yi, yong-xiu Li, Ji-long Hu, yuanqiao he, Qun Tang Colloidal gadolinium arsenite has been developed as arsenic trioxide nanoparticle prodrug (ATONP) by our group in the past five years, and it has illustrated highly promising for cancer therapy. Here... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - New J. Chem. latest articles - Category: Chemistry Authors: Source Type: research
ConclusionRACRS is safe in the treatment of patients with stage I –III colorectal cancer. Oncological outcome did not differ between RACRS and LCRS groups. RACRS had lower conversion and intra-operative complication rates.
Source: Surgical Endoscopy - Category: Surgery Source Type: research
AbstractBackgroundThe purpose of this study is to compare the clinical outcomes of laparoscopic liver resection versus open liver resection for recurrent hepatocellular carcinoma (RHCC).MethodsPublished studies which investigated laparoscopic versus open liver resection for RHCC were identified, and meta-analysis was used for statistical analysis.ResultsSix studies were analyzed by meta-analysis method, and cumulative 335 cases were included in this study. Laparoscopic liver resection was performed in 145 cases, and open liver resection was performed in 190 cases. Meta-analysis showed that there was no difference in operat...
Source: Surgical Endoscopy - Category: Surgery Source Type: research
ConclusionThe fusion fascia of Fredet is useful to achieve CME and D3-L in right colon cancers with reduced risk of intraoperative complications. This structure is particularly suitable for minimally invasive surgery; therefore, we encourage awareness of the fascia of Fredet by colorectal surgeons.
Source: Surgical Endoscopy - Category: Surgery Source Type: research
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