scholarly journals Diagnostic model of saliva peptide finger print analysis of oral squamous cell carcinoma patients using weak cation exchange magnetic beads

2015 ◽  
Vol 35 (3) ◽  
Author(s):  
Wei-Peng Jiang ◽  
Zhen Wang ◽  
Li-Xin Xu ◽  
Xin Peng ◽  
Feng Chen

Whole saliva (WS) was used for diagnosis of oral squamous cell carcinoma (OSCC); two polypeptides may be used for OSCC diagnosis.

MicroRNA ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Soheila Manifar ◽  
Maryam Koopaie ◽  
Shahab Shokouhi Lahiji

Background: Squamous Cell Carcinoma (SCC) includes more than 90% of malignancies of the oral cavity. Early diagnosis could effectively improve patients' quality of life and treatment outcomes of oral cancers. MicroRNAs as non-encoding genes have great potential to initiate or suppress cancer progression. Recent studies have shown that disruption of micro-RNA regulation is a common occurrence in cancers. Objective: This study set out to evaluate the expression of microRNA-15a (miR-15a) and microRNA-16-1 (miR-16-1) in the saliva of Oral Squamous Cell Carcinoma (OSCC) patients in comparison with a healthy control group. Methods: This case-control study was performed on fifteen patients with OSCC and fifteen healthy volunteers as the control group. A 5 ml of non-stimulating whole saliva was collected by spitting method from patients and controls and stored at -70oC. The expression of miR-15a and miR-16-1 was investigated using quantitative Reverse-Transcription Polymerase Chain Reaction (RT-qPCR). Results: MiR-15a and miR-16-1 were downregulated in OSCC patients compared with the control group (p<0.001). The sensitivity of miR-15a and miR-16-1 in differentiating OSCC patients from healthy individuals was 93.3% and 86.67%, respectively, and their specificity was 86.67% and 92.33%, respectively. The diagnostic accuracy of miR-15a was 90%, and miR-16-1 was 93.3%. Conclusion: The present study showed a decrease in the relative expression of miR-15a and miR-16-1 in OSCC patients compared with healthy individuals. It is probable to introduce salivary values of miR-15a and miR-16-1 as a non-invasive tool for early detection of OSCC. Decreased expression of miR-15a and miR-16-1 in OSCC indicates the possible effective role of these genes in OSCC etiopathogenesis.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ivan Salarić ◽  
Ivana Karmelić ◽  
Jasna Lovrić ◽  
Ksenija Baždarić ◽  
Marko Rožman ◽  
...  

AbstractMelatonin’s role in circadian rhythm is well documented, as are its’ anti-oxidant, oncostatic and anti-inflammatory properties. Poor sleep quality has been associated as a potential risk factor for several malignancies, including head and neck cancers. The purpose of this study is to determine salivary melatonin (MLT) levels in oral squamous cell carcinoma (OSCC) patients, compare the salivary MLT levels with those in healthy individuals and compare the salivary and serum levels in OSCC patients. Furthermore, the aim is to investigate the potential relationship between sleep quality and salivary MLT levels in OSCC patients. Unstimulated (UWS) and stimulated (SWS) whole saliva was sampled from patients with T1N0M0 and T2N0M0 OSCC (N = 34) and 33 sex and age matched healthy subjects. Serum samples were taken from 11 OSCC patients. Sleep quality was measured using Pittsburgh Sleep Quality Index (PSQI) questionnaire. Melatonin levels in UWS and SWS were significantly higher in the OSCC group. Sleep quality was significantly lower in patients with OSCC (P = 0.0001). ROC analysis was found to be significant (P < 0.001) in evaluating MLT concentration limit in diagnosing OSCC. The expected relationship between sleep quality and salivary MLT levels in OSCC patients was not observed. Our results suggest salivary MLT as a potential biomarker that might facilitate non-invasive detection of early stage OSCC.


2018 ◽  
Vol 11 (2) ◽  
pp. 725-733
Author(s):  
Maysaa Kadhim Al-Malkey ◽  
Zainab Abdul Jabbar Aldhaher ◽  
Rasha Abbas Azeez ◽  
Sumaiah Ibrahim Hussein ◽  
Sinai Waleed Mohammed ◽  
...  

Oral squamous cell carcinoma (OSCC) is the most common malignant neoplasm of the oral mucosa. Human papillomavirus (HPV) virus cause a broad scope of diseases from benign to invasive tumors, types 16 and 18 classified as carcinogenic to humans. This study aimed to provide the first molecular characterization of HPV types in Iraq. Thirty-five unstimulated whole saliva samples were collected from histopathologically confirmed patients with oral cancer were enrolled in this study. Genomic DNA was extracted from exfoliating cells to amplify HPV-DNA using HPV-L1 gene sequence primers by polymerase chain reaction method (PCR), the viral genotyping was performed using direct sequencing method. HPV genotypes identified were deposited in GenBank. HPV DNA was detected in 20 of 35 OSCC patients representing (57%).The most frequent HPV genotypes were HPV-18 accounting for (75%) (15 out of 20 patients) followed by HPV-16 accounting for (20%) (4 out of 20), and HPV-11 accounting for (5%) (5 out of 20 patients). This study highlights the high-risk HPV genotypes in OSCC patients and their phylogenetic analysis tree and their homology to the ancestral sequence which may indicate emerging of a new biological entity of HPV-positive OSCC with a potential sexually transmission.


Cancers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 449
Author(s):  
Kodai Nakamura ◽  
Naomi Hiyake ◽  
Tomofumi Hamada ◽  
Seiya Yokoyama ◽  
Kazuki Mori ◽  
...  

A lack of reliable biomarkers for oral squamous cell carcinoma (OSCC) poses a major clinical issue. The sensitivity and specificity of classical serum tumor markers, such as the squamous cell carcinoma antigen (SCC-Ag), are quite poor, especially for early detection. This study aimed to identify specific serum miRNAs potentially serving as OSCC biomarkers. The expression levels of candidate miRNAs in serum samples from 40 OSCC patients and 40 healthy controls were quantitatively analyzed via microarray and reverse transcription PCR (RT-PCR) analyses. To enhance the accuracy of detection, we used Fisher’s linear discriminant analysis to establish a diagnostic model that incorporated a combination of selected miRNAs. Consequently, miR-19a and miR-20a were significantly upregulated in the patient group (p = 0.014 and 0.036, respectively), whereas miR-5100 was downregulated (p = 0.001). We found that a combination of six miRNAs (miR-24, miR-20a, miR-122, miR-150, miR-4419a, and miR-5100) could distinguish between OSCC and the control group with a higher degree of accuracy (Area Under the Curve, AUC: 0.844, sensitivity: 55%, and specificity: 92.5%). Furthermore, compared to serum SCC antigen, the 6-miRNA panel could accurately detect the presence of OSCC. The present specific miRNAs panel may serve as a novel candidate biomarker of oral cancer.


2013 ◽  
Vol 7 (3) ◽  
pp. 137-139
Author(s):  
U Sudhakar ◽  
JA Sivaranjani ◽  
MC Dayan

ABSTRACT AIM This biochemical study aimed at evaluating the level of interleukin-1beta in patients with oral squamous cell carcinoma as a reflection of amount of bone destruction leading to periodontitis in comparison with the normal healthy individuals. MATERIAL & METHOD The subjects were grouped under four major categories like chronic periodontits, chronic periodontitis with oral squamous cell carcinoma and squamous cell carcinoma alone and the control. Each group consisted of 10 subjects each. Unstimulated whole saliva was collected from each subject. IL-1 in saliva was measured by enzyme linked immunosorbent assay. RESULTS In the present study, IL-1 was significantly more in patients with cancer and periodontitis than patients with only cancer. When compared with the normal subjects IL-1 value was significantly more in subjects with carcinoma (0.016). CONCLUSION This study presents the first evidence of association between level of salivary biomarker interleukin 1 in subjects with periodontitis and in oral squamous cell carcinoma.


2013 ◽  
Vol 1 (2) ◽  
pp. 02-06
Author(s):  
SM Anwar Sadat ◽  
Sufia Nasrin Rita ◽  
Shoma Banik ◽  
Md Nazmul Hasan Khandker ◽  
Md Mahfuz Hossain ◽  
...  

A cross sectional study of 29 cases of oral squamous cell carcinoma with or without  cervical lymph node metastasis was done among Bangladeshi patients from January 2006 to December 2007. Majority of the study subjects (34.5%) belonged to the age group of 40-49 years. 58.6% of the study subjects were male, while remaining 41.4% of them were female. 51.7% of the lesions were located in the alveolar ridge where the other common sites were buccal mucosa (27.6%) and retro molar area (13.8%). Half of the study subjects (51.7%) were habituated to betel quid chewing followed by 37.9% and 10.3% were habituated to smoking and betel quid-smoking respectively. Grade I lesions was most prevalent (75.9%) in the study subjects.  Majority of cases presented with Stage IV lesions (55.2%). The sensitivity, specificity, positive predictive value, negative predictive value & accuracy of clinical palpation method for determining metastatic cervical lymph nodes were 93.33%, 64.29%, 73.68%, 90% and 79.3% respectively. Careful and repeated clinical palpation plays important role in evaluation of cervical lymph nodes though several modern techniques may help additionally in the management of oral cancer.DOI: http://dx.doi.org/10.3329/updcj.v1i2.13978 Update Dent. Coll. j. 2011: 1(2): 02-06


2011 ◽  
Vol 3 (6) ◽  
pp. 419-422
Author(s):  
Dr. Shool Rohit S Dr. Shool Rohit S ◽  
◽  
Dr. Anand P Zingade ◽  
Dr. Manish Kumar

Odonto ◽  
2011 ◽  
Vol 19 (38) ◽  
pp. 115-121
Author(s):  
S.O. Silva ◽  
K.P. Gatto ◽  
J.P. De Carli ◽  
P.H.C. Souza ◽  
C.S. Busin

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