Expression of Podoplanin in Sinonasal Squamous Cell Carcinoma and Its Clinical Significance

2020 ◽  
Vol 34 (6) ◽  
pp. 800-809
Author(s):  
Huan Wang ◽  
Chunyan Hu ◽  
Xiaole Song ◽  
Li Hu ◽  
Wanpeng Li ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Prognostic Factor ◽  
Cell Carcinoma ◽  
Cancer Cells ◽  
Squamous Cell ◽  
Disease Free Survival ◽  
Positive Staining ◽  
Primary Tumor Site ◽  
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Background It was recently suggested that the upregulation of podoplanin (PDPN) in cancer cells plays a significant role in tumor invasion and metastasis and that it is significantly associated with poor prognosis in oral, cutaneous, and esophageal squamous cell carcinoma. The aim of this study was to investigate the expression pattern of PDPN in sinonasal squamous cell carcinoma (SNSCC) and to evaluate its role as a prognostic factor for survival outcome. Patients and methods This study included 59 subjects with SNSCC. We retrospectively collected the clinical features of these patients from medical records and retrieved the associated formalin-fixed, paraffin-embedded tissues for PDPN immunohistochemical staining. Furthermore, PDPN expression was analyzed in relation to the patients’ clinicopathological features and prognosis. Results We observed positive staining for PDPN in both cancer cells and stromal cancer-associated fibroblasts (CAFs). Positive expression of PDPN in cancer cells of patients with SNSCC was significantly correlated with the primary tumor site (p = 0.009) and local recurrence (p = 0.024). In addition, patients with PDPN-positive cancer cells had significantly lower overall survival (OS) and disease-free survival (DFS) rates than did patients with PDPN-negative cancer cells (both p < 0.05). Multivariate analysis revealed that PDPN expression in cancer cells was an independent prognostic factor for both OS (p = 0.038) and DFS (p = 0.039). Conclusions Our findings demonstrated that PDPN overexpression may be both an independent prognostic biomarker and a therapeutic target in SNSCC.

scholarly journals Label-Free Semiquantitative Liquid Chromatography-Tandem Mass Spectrometry Proteomics Analysis of Laryngeal/Hypopharyngeal Squamous Cell Carcinoma on Formalin-Fixed, Paraffin-Embedded Tissue Samples - a Pilot Study

2020 ◽  
Vol 26 (4) ◽  
pp. 2801-2807
Author(s):  
Andras Burian ◽  
Laszlo Lujber ◽  
Imre Gerlinger ◽  
Tamas Jarai ◽  
Eva Orosz ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Squamous Cell Carcinoma ◽  
Liquid Chromatography ◽  
Cell Carcinoma ◽  
Tumor Markers ◽  
Squamous Cell ◽  
Label Free ◽  
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Abstract Squamous cell carcinoma (SCC) of the head and neck region is the sixth most frequent malignancy with high mortality rate. Due to its poor prognosis it is considered a growing public health problem worldwide inspite of existing treatment modalities. Thus, early diagnosis of new diseases and recurrences is emerging on one hand, but on the other hand troublesome in the lack of reliable tumor markers in this field. The rapid development of proteomics has opened new perspectives in tumor marker discovery. Liquid chromatography/mass spectrometry (LC/MS) as the gold standard in proteomics enables the semi-quantitative analysis of proteins within various tissues. Abundance differences between tumor and normal tissue also can be interpreted as tumor specific changes. The aim of this study was to identify potential tumor markers of laryngeal/hypopharyngeal SCC by revealing abundance changes between cancerous and the surrounding phenotypically healthy tissue. After separating the phenotypically cancerous and healthy parts of formalin-fixed paraffin-embedded tissues, each sample underwent protein recovery process and tryptic digestion for label-free semi-quantitative LC/MS analysis. Eight proteins showed significantly higher abundance in tumor including tenascin, transmembrane emp24 domain-containing protein 2, cytoplasmic dynein light chain 1, coactosin-like protein, small proline-rich protein 2D, nucleolin, U5 small nuclear RNP 200-kDa helicase and fatty aldehyde dehydrogenase. Desmoglein-1 and keratin type I cytoskeletal 9 were down-regulated in tumor. Using Ingenuity Pathway Analysis we mapped the signaling pathways these proteins play role in regarding other tumors. Based on these findings these proteins may serve as promising biomarkers in the fight against laryngeal/hypopharyngeal SCCs.

scholarly journals Flow cytometric DNA analysis of oral squamous cell carcinoma in Iraqi patients

2002 ◽  
Vol 8 (2-3) ◽  
pp. 393-403
Author(s):  
B. T. Garib ◽  
S. Al Ani ◽  
N. Al Alwan ◽  
I. S. Tillawi
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Dna Analysis ◽  
Nuclear Dna ◽  
Treatment Strategies ◽  
Dna Index ◽  
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We studied the DNA content, DNA index and cell cycle parameters that are reliable markers for assessing the proliferative activity and aggressiveness of malignancies. Cytometric DNA analysis was performed on formalin-fixed paraffin embedded sections from 36 Iraqi patients with oral squamous cell carcinoma. The results showed that 20 of 36 cases [55.5%] were diploid, while 15 cases [41.7%] were aneuploid. Significantly higher S-phase fractions and higher DNA indices characterized aneuploid tumours. Nuclear DNA analysis as part of the evaluation of oral squamous cell carcinoma will influence the selection of appropriate treatment strategies.

scholarly journals IMMUNOHISTOCHEMICAL EXPRESSION OF LATENT MEMBRANE PROTEIN- 1 (LMP-1) AMONG SUDANESE PATIENTS WITH NASOPHARYNGEAL CARCINOMA

2015 ◽  
Vol 3 (9) ◽  
pp. 101-107
Author(s):  
Ibrahim BakhitYousif Elemam ◽  
Yousif Mohammed Yousif ◽  
SideegAbd Elaziz Mohammed
Keyword(s):  
Squamous Cell Carcinoma ◽  
Nasopharyngeal Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Original Data ◽  
Risk Area ◽  
Genetic Traits ◽  
Histological Types ◽  
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Nasopharyngeal carcinoma (NPC) has a unique and complex etiology that is not completely understood. The distinctive racial/ethnic and geographic distribution of NPC worldwide suggests that both environmental factors and genetic traits contribute to its development. The aims of this study was to investigate the association of LMP-1 EBV in theses tumors in Sudan To assess the expression pattern of LMP-1 immunohistochemical stain in the different histological types of NPC and to define any association between the expression of LMP-1 with the sex, the age and the histological types of NPC. Archival formalin-fixed, paraffin-embedded NPC biopsies were evaluated in 35 biopsies for the presence of LMP1 using immunohistochemistry (IHC). Histologically the cases were, (54%) (19/35) of squamous cell carcinomas subtypes, (26%) (9/35) of undifferentiated squamous cell carcinoma and (20%) (7/35) of keratinized squamous cell carcinomas.LAMP-1 detected in five (5/9) (55%) of undifferentiated squamous cell carcinoma, positive, four (4/19) (21%) of non keratinized squamous cell carcinoma and in two (28%) (2/7) of keratinized squamous cell carcinoma, with (P.value = 0.182), so there is no statistically significant different in the correlation of EBV with histological subtypes of nasopharyngeal carcinoma. This study confirms that EBV is present in a subset of Sudanese NPC patients. Our results are consistent with those reported by other studies concerning the same NPC endemic risk area and provide original data concerning Sudan.

scholarly journals CD73 Promotes Tumor Progression in Patients with Esophageal Squamous Cell Carcinoma

Cancers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 3982
Author(s):  
Yen-Hao Chen ◽  
Hung-I Lu ◽  
Chien-Ming Lo ◽  
Shau-Hsuan Li
Keyword(s):  
Squamous Cell Carcinoma ◽  
Prognostic Factor ◽  
Esophageal Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Disease Free Survival ◽  
Independent Prognostic Factor ◽  
Expression Levels ◽  
Invasion And Migration ◽  
Patient Responses

Cluster of differentiation (CD)-73 plays pivotal roles in the regulation of immune reactions via the production of extracellular adenosine, and the overexpression of CD73 is associated with worse outcomes in several types of cancers. Here, we identified 167 esophageal squamous cell carcinoma (ESCC) patients who underwent esophagectomy, including 64 and 103 patients with high and low expression levels of CD73, respectively. Univariate and multivariate analyses showed high expression of CD73 was an independent prognostic factor for worse disease-free survival and overall survival. In addition, we selected another cohort consisting of 38 ESCC patients receiving nivolumab or pembrolizumab and found that treatment response and survival benefit to immunotherapy were strongly correlated with the expression levels of CD73/programmed death ligand 1. Moreover, the transwell assay revealed knockdown of CD73 in two ESCC cell lines, TE1 and KYSE30, exhibited significantly reduced abilities of cell invasion and migration. CD73 silencing also showed that the protein expression levels of CD73, vimentin, and snail were downregulated, while those of E-cadherin were upregulated in Western blotting. The findings of our study indicate CD73 may be an independent prognostic factor for ESCC patients who underwent esophagectomy. Furthermore, it may be associated with the patient responses to immunotherapy.

scholarly journals SARS-CoV-2 detection in formalin-fixed paraffin-embedded tissue specimens from surgical resection of tongue squamous cell carcinoma

2020 ◽  
Vol 73 (11) ◽  
pp. 754-757 ◽  
Author(s):  
Elena Guerini-Rocco ◽  
Sergio Vincenzo Taormina ◽  
Davide Vacirca ◽  
Alberto Ranghiero ◽  
Alessandra Rappa ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Surgical Resection ◽  
Squamous Cell ◽  
Tongue Squamous Cell Carcinoma ◽  
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Tissue Specimens ◽  
Safety Procedures ◽  
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In the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, pathologists can be exposed to infection handling surgical specimens. Guidelines related to safety procedures in the laboratory have been released. However, there is a lack of studies performed on biopsy and surgical resection specimens. Here we report the detection of SARS-CoV-2 in formalin-fixed paraffin-embedded samples from surgical resection of tongue squamous cell carcinoma of a patient who developed COVID-19 postsurgery. RNA of SARS-CoV-2 strain was detected in the tumour and the normal submandibular gland samples using real-time PCR-based assay. No viral RNA was found in metastatic and reactive lymph nodes. We demonstrated that SARS-CoV-2 RNA can be detected in routine histopathological samples even before COVID-19 disease development. These findings may give important information on the possible sites of infection or virus reservoir, and highlight the necessity of proper handling and fixation before sample processing.

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