Mucocutaneous Squamous Cell Carcinoma in a Yucatan Minipig

2021 ◽  
pp. 019262332110360
Author(s):  
Sarah E. Coe ◽  
Shane Thellman ◽  
Andrew Petticoffer ◽  
Randall Pielemeier ◽  
Keith Nelson
Keyword(s):  
Squamous Cell Carcinoma ◽  
Epithelial Cells ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Lymphatic Vessels ◽  
Ultraviolet Exposure ◽  
Neoplastic Lesions ◽  
Mucocutaneous Junction

Minipigs are commonly utilized in dermal toxicology studies, necessitating documentation of background findings, including neoplastic lesions. We describe a case of a Yucatan minipig with a squamous cell carcinoma at the mucocutaneous junction of the lip. The neoplasm appeared grossly as a slightly raised area of skin with ulceration. Histologically, there were nests and trabeculae of neoplastic squamous epithelial cells undergoing keratinization. Multifocally, rafts of these cells were within lymphatic vessels. Squamous cell carcinoma has not previously been reported in Yucatan or other laboratory minipigs, however, has been reported uncommonly in nonlaboratory pot-bellied pigs. Although squamous cell carcinoma has been associated with ultraviolet exposure or papillomavirus in various species, this was unable to be confirmed in this case.

scholarly journals Assessing Various Control Samples for Microarray Gene Expression Profiling of Laryngeal Squamous Cell Carcinoma

Biomolecules ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 588
Author(s):  
Adam Ustaszewski ◽  
Magdalena Kostrzewska-Poczekaj ◽  
Joanna Janiszewska ◽  
Malgorzata Jarmuz-Szymczak ◽  
Malgorzata Wierzbicka ◽  
...  
Keyword(s):  
Gene Expression ◽  
Squamous Cell Carcinoma ◽  
Epithelial Cells ◽  
Cell Carcinoma ◽  
Gene Expression Profiling ◽  
Cell Lines ◽  
Squamous Cell ◽  
Expression Profiling ◽  
Laryngeal Squamous Cell Carcinoma ◽  
Control Samples

Selection of optimal control samples is crucial in expression profiling tumor samples. To address this issue, we performed microarray expression profiling of control samples routinely used in head and neck squamous cell carcinoma studies: human bronchial and tracheal epithelial cells, squamous cells obtained by laser uvulopalatoplasty and tumor surgical margins. We compared the results using multidimensional scaling and hierarchical clustering versus tumor samples and laryngeal squamous cell carcinoma cell lines. A general observation from our study is that the analyzed cohorts separated according to two dominant factors: “malignancy”, which separated controls from malignant samples and “cell culture-microenvironment” which reflected the differences between cultured and non-cultured samples. In conclusion, we advocate the use of cultured epithelial cells as controls for gene expression profiling of cancer cell lines. In contrast, comparisons of gene expression profiles of cancer cell lines versus surgical margin controls should be treated with caution, whereas fresh frozen surgical margins seem to be appropriate for gene expression profiling of tumor samples.

scholarly journals High relative density of lymphatic vessels predicts poor survival in tongue squamous cell carcinoma

2016 ◽  
Vol 273 (12) ◽  
pp. 4515-4524 ◽  
Author(s):  
Miia Seppälä ◽  
Konsta Pohjola ◽  
Jussi Laranne ◽  
Markus Rautiainen ◽  
Heini Huhtala ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Relative Density ◽  
Squamous Cell ◽  
Lymphatic Vessels ◽  
Tongue Squamous Cell Carcinoma ◽  
Poor Survival ◽  
High Relative Density

scholarly journals Expression of Angiopoietin and VEGF in cervical cancer and its clinical significance

2018 ◽  
Vol 13 (1) ◽  
pp. 527-532
Author(s):  
Qingyuan Lv ◽  
Weijuan Zhong ◽  
Xiabin Ye ◽  
Yang Lv ◽  
Haiying Liu ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Clinical Significance ◽  
Squamous Cell ◽  
Tumor Tissue ◽  
Neoadjuvant Chemoradiotherapy ◽  
Lymphatic Vessels ◽  
Cervical Squamous Cell Carcinoma ◽  
Positive Expression

AbstractObjectiveThe aim of this study was to evaluate the expression of Angiopoietin-1 (Ang-1), Angiopoietin-2 (Ang-2) and vascular endothelial growth factor (VEGF) in cervical cancer and its clinical significance.MethodsImmunohistochemical assay was used to examine the expression of Ang-1/2 and VEGF in tumor tissue from 56 cervical squamous cell carcinoma patients treated with operation only (SCC-O group), as well as 51 subjects with cervical squamous cell carcinoma treated with neoadjuvant radiotherapy (SCC-RCO group, n=28) or neoadjuvant chemotherapy (SCC-CO group, n=23). Both microvessel density (MVD) and lymphatic vessel density (LVD) were examined in the three groups through detection of CD34 and D2-40 expression in respective tissue samples.ResultsWith the progression of cervical cancer, the positive expression scores of Ang-2 and VEGF were significantly increased (p<0.05). Compared with surgical intervention, neoadjuvant chemoradiotherapy significantly reduced the positive expression scores of Ang-1, Ang-2, and VEGF in cervical cancer tissues (p<0.05). The MVD values of the SCC-CO and SCC-RO groups were significantly reduced as compared to the SCC-O group (p<0.05). Similarly, the LVD values of the SCC-CO and SCC-RO groups were also significantly reduced when compared to those of the SCC-O group (p<0.05). However, LVD values of the SCC-CO and SCC-RO groups were not statistical different (p>0.05).ConclusionAng-1, Ang-2 and VEGF may play an important role in the development of cervical cancer. Mutual synergism of Ang-2 and VEGF demonstrated a close relationship with the generation of cervical blood and lymphatic vessels. Cervical cancer radiotherapy and chemotherapy could significantly inhibit the formation of blood vessels and lymphatic vessels in tumor tissue.

Induction of squamous cell carcinoma after MAP3K8 overexpression in murine salivry gland epithelial cells

Head & Neck ◽  
2019 ◽  
Vol 41 (4) ◽  
pp. 924-929
Author(s):  
Jun‐Han Lee ◽  
Joseph H. Jeong ◽  
Tae‐Hwan Kim ◽  
So‐yeon Kim ◽  
Kyung‐Eun Kim ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Epithelial Cells ◽  
Cell Carcinoma ◽  
Squamous Cell

scholarly journals Histopathological Study of Upper Gastrointestinal Tract Endoscopic Biopsies

2019 ◽  
Vol 6 (1) ◽  
pp. 42-46
Author(s):  
Mosammat Suchana Nazrin ◽  
Nur E Jannatul Ferdous ◽  
Madhusudan Saha ◽  
Fahmi Iqbal Rabbi
Keyword(s):  
Squamous Cell Carcinoma ◽  
Gastrointestinal Tract ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Upper Gastrointestinal Tract ◽  
North East ◽  
Endoscopic Biopsies ◽  
Neoplastic Lesion ◽  
Neoplastic Lesions ◽  
Upper Gastrointestinal

Background: Diseases of gastrointestinal tract are a major cause of morbidity and mortality. Objective: This study was carried out to determine the spectrum of histopathological lesions of upper gastrointestinal tract. Methodology: This retrospective study was conducted in the Department of Pathology at North East Medical College, Sylhet, Bangladesh during a 36 months period from January 2013 to December 2015. Endoscopies were performed using Olympus 150, forward viewing upper GI endoscope. The biopsy specimens received were fixed in 10.0% formalin and routinely processed in Haematoxyline & Eosin stain. Results: The present study included 135 endoscopic biopsies. The mean age with SD of the study population was 53.20±16.09 years. Among 53 cases of esophageal biopsies 8(15.08%) cases showed non-neoplastic lesions and 45(84.92%) cases were neoplastic of which 39(73.6%) cases and 6(11.32%) cases were squamous cell carcinoma and adenocarcinoma respectively. Among 6 cases of gastro esophageal junction biopsies 3(50%) cases showed non-neoplastic lesions and 3(50%) were neoplastic, of which 2(33.33%) were adenocarcinoma and 1(16.67%) were squamous cell carcinoma. Among 61 cases of stomach biopsies 34(55.74%) showed non-neoplastic lesions and 27(44.26%) were neoplastic, of which 1(1.64%) case was adenoma and 25(40.98%) were adenocarcinoma. Among 15 cases of duodenal biopsies 13(86.67%) cases showed non-neoplastic lesions and 2(13.33%) were neoplastic one of which was adenocarcinoma (6.67%). Among 135 cases endoscopist reported 82(60.74%) cases as neoplastic and 53(39.26%) as non-neoplastic, whereas histopathology revealed 77(57.03%) cases neoplastic and 58(42.97%) cases non-neoplastic. Conclusion: Common site of upper GIT endoscopic biopsy is stomach which are mostly neoplastic lesion; however, most common malignancy is squamous cell carcinoma of the oesophagus. Journal of Current and Advance Medical Research 2019;6(1):42-46

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