scholarly journals Corellation of p53 expressions and histopathological grading in oral cavity squamous cell carcinoma

2016 ◽  
Vol 49 (3) ◽  
pp. 120
Author(s):  
Silvi Kintawati
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cavity ◽  
Cell Carcinoma ◽  
Cancer Progression ◽  
Squamous Cell ◽  
P53 Mutation ◽  
Clinical Staging ◽  
P53 Expression ◽  
P53 Antibodies ◽  
Histopathological Grading

Background: Squamous cell carcinoma is a malignancy of oral cavity mostly occurred and can also metastasize. p53 gene is a tumor suppressor gene that plays an important role in carcinogenesis. The role of wild-type p53 is very important in suppressing the formation of a malignancy. p53 also has many other important functions. p53 is a suppressor of tumor/ cancer progression through the response of cell cycle to DNA damage and by giving time to repair DNA prior to replication of genes. p53 mutation, mostly occurs in a malignancy, so earlier histopathological transformation can be detected by observing p53 mutation. The prognosis of squamous cell carcinoma in oral cavity, therefore, depends on histopathological grading and clinical staging of the tumor. To enforce the histopathological grading, in addition based on histopathology differentiation, the earlier histopathological transformation can also be assessed. Purpose: This study aimed to determine the correlation of p53 expressions and histopathological grading in oral cavity squamous cell carcinoma. Method: This study was a retrospective study on 20 cases of oral cavity squamous cell carcinoma examined at Department of Pathology Anatomy in Hasan Sadikin Hospital in Bandung. Immunohistochemical examination was then performed using p53 antibodies to determine the correlation of p53 expression and histopathological grading in oral cavity squamous cell carcinoma to predict prognosis. Result: The overall results showed that there was no correlation between p53 expression and histopathological grading in oral cavity squamous cell carcinoma of the oral cavity although there was a very strong correlation between p53 expression and histopathological grading I (p<0.01). Conclusion: It can be concluded that there was no correlation between p53 expression and histopathological grading in oral cavity squamous cell carcinoma. Thus, p53 expression cannot be used to predict a prognosis.

scholarly journals Immunoexpression of Ki-67 in determining prognosis of oral cavity squamous cell carcinoma

2019 ◽  
Vol 31 (2) ◽  
pp. 147
Author(s):  
Silvi Kintawati ◽  
Hening Tjaturina Pramesti
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cavity ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Clinical Staging ◽  
Ki 67 ◽  
Strong Conclusion ◽  
Result Show ◽  
The Right ◽  
Histopathological Grading

Introduction: Several researchers have been stated that the right prognosis of oral squamous cell carcinoma (OSCC) can be achieved through assessment of tumor clinical staging and tumor histopathological grading as well. The use of biomarker in histopathological grading is obviously helpful to ensure the prognosis. Objective of this study was to determine the correlation between expression of Ki-67 and histopathological grading of OSCC. Methods: A retrospective study was conducted by assessing 20 cases of paraffin-embedded OSCC derived from the Department of Pathology Anatomy of Hasan Sadikin Hospital Bandung in 2013. The OSCC performing was stained by hematoxylin-eosin. While, antibodies Ki-67 was used in immunohistochemistry reaction to determine the relation of expression of Ki-67 with histopathologic grade of OSCC for predicting a prognosis. Results: The result show that distribution of Ki-67 expression were vary from 20% to 80% in each case. Ki-67 intensity was also distributed from weak, moderate and strong. Conclusion: There is a significant correlation between Ki-67 immunoexpression and the histopathological grading of squamous cell carcinoma (p < 0.01), thus, Ki-67 can be used to predict a prognosis.Keywords: Immunoexpression, Ki-67, prognosis, oral cavity squamous cell carcinoma

scholarly journals NLRP3 Inflammasome Inhibitor BAY-117082 Reduces Oral Squamous Cell Carcinoma Progression

2021 ◽  
Vol 22 (20) ◽  
pp. 11108
Author(s):  
Sarah Adriana Scuderi ◽  
Giovanna Casili ◽  
Rossella Basilotta ◽  
Marika Lanza ◽  
Alessia Filippone ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cancer ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Cancer Progression ◽  
Squamous Cell ◽  
Nlrp3 Inflammasome ◽  
P53 Expression

Oral cancer is one of the most common human malignancies, and its incidence is increasing worldwide. In particular, oral squamous cell carcinoma (OSCC) is characterized by high rates of proliferation, invasiveness, and metastasis. Currently, standard treatment for OSCC includes surgical removal, chemotherapy, and radiotherapy; however, the survival rate of patients with OSCC remains low, thus new therapies are needed. It has been proven that excessive NLRP3 inflammasome activation and apoptosis alteration may contribute to oral cancer progression. This study aimed to investigate the effect of BAY-117082, an NLRP3 inflammasome inhibitor, in an in vitro and in vivo xenograft model of oral cancer. In vitro results revealed that BAY-117082 at concentrations of 5, 10, and 30 µM was able to reduce OSCC cell viability. BAY-117082 at higher concentrations significantly reduced NLRP3, ASC, caspase-1, IL-1β, and IL-18 expression. Moreover, Bax, Bad, and p53 expression were increased, whereas Bcl-2 expression was reduced. Furthermore, the in vivo study demonstrated that BAY-117082 at doses of 2.5 and 5 mg/kg significantly decreased subcutaneous tumor mass, and also reduced NLRP3 inflammasome pathway activation. Therefore, based on these results, the use of BAY-117082 could be considered a promising strategy to counteract oral cancer progression, thanks its ability to modulate the NLRP3 inflammasome and apoptosis pathways.

scholarly journals p53 antibodies in the saliva of patients with squamous cell carcinoma of the oral cavity

1998 ◽  
Vol 78 (3) ◽  
pp. 390-391 ◽  
Author(s):  
Mahvash Tavassoli ◽  
Nadège Brunel ◽  
Rehana Maher ◽  
Newell W. Johnson ◽  
Thierry Soussi
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cavity ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
P53 Antibodies

Correlation between Imunnoexpression P53 and Human Telomerase Reverse Transcriptase (hTERT) with Grading of Oral Squamous Cell Carcinoma

2020 ◽  
Vol 48 ◽  
pp. 141-154
Author(s):  
Isnandar Isnandar ◽  
Harmas Yazid Yusuf ◽  
Bethy S. Hernowo
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cavity ◽  
Cell Carcinoma ◽  
Cancer Cells ◽  
Squamous Cell ◽  
P Value ◽  
Telomerase Reverse Transcriptase ◽  
Human Telomerase Reverse Transcriptase ◽  
Human Telomerase ◽  
Histopathological Grading

Oral cancer account for 30% of all malignant tumors in the head and neck, more than 90% of these cancers are squamous cell carcinoma. The p53 tumor suppressor gene known as "the guardian of the genome" has a major function in cell cycle control and act as a main defense against cancer, the occurrence of genomic instability causes inactivation and mutation of p53, which related to the progression of cancer cells and poor prognosis for patients. Human telomerase reverse transcriptase (hTERT), a catalytic protein subunit of the complex telomerase enzyme, prevents telomere erosion during DNA replication, thus allowing cells to escape the aging cell step. The relationship between hTERT and malignant transformation is around 90%, the detection of hTERT is associated with malignancy that leads to a worse prognosis which increases immortality or continuous growth in cancer cells. This study was conducted with retrospective cross sectional using immunohistochemical p53 and hTERT smear in 30 paraffin blocks of squamous cell carcinoma of the oral cavity, held at the Anatomical Pathology Department of Hasan Sadikin Hospital Bandung. P53 and hTERT immunoexpression were correlated with histopathological grading of squamous cell carcinoma of oral cavity (SCC) and statistically analyzed with Rank Spearman correlation with significance of p<0.05 (95%) and Kendall Coefficient of Concordance with significance of p <0.05% (95%). The results showed a significant positive correlation between p53 immunoexpression with histopathological grading (rs=0.497, p-value = 0.005), between hTERT immunoexpression and histopathological grading (rs=0.441, p-value=0.015), and between p53 and immunoexpression hTERT with histopathological grading (W=0.568, p-value=3.99E-08) Conclusion: the higher p53 and/or hTERT immunoexpression, the higher or worse the level of histopathological grading of oral cavity squamous cell carcinoma (poorly differentiated).

scholarly journals Comet and micronucleus assays do not correlate extent of DNA damage with clinical staging of oral cavity squamous cell carcinoma

2020 ◽  
Vol 49 ◽  
Author(s):  
Andreza Negreli Santos ◽  
Rodrigo Juliano Oliveira ◽  
Lucas Roberto Pessatto ◽  
Albert Schiavetto Souza ◽  
Andréia Conceição Milan Brochado Antoniolli-Silva ◽  
...  
Keyword(s):  
Dna Damage ◽  
Squamous Cell Carcinoma ◽  
Oral Cavity ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Clinical Staging

scholarly journals Evaluation of Molecular Positive Margins Using Surrogate P53 and Retinoblastoma Protein Expression and Correlation with Surgical Outcomes in Oral Squamous Cell Carcinoma

2021 ◽  
Vol 10 (42) ◽  
pp. 3639-3644
Author(s):  
Bimlesh Thakur ◽  
Ashish Singhal ◽  
Akash Agarwal ◽  
Rahat Hadi ◽  
Rajshekar Puttaswamy ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cancer ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
P53 Mutation ◽  
Tumour Tissue ◽  
P53 Expression ◽  
Positive Margins ◽  
Excision Margins

BACKGROUND p53 mutation and Rb over-expression have been extensively studied in oral squamous cell carcinoma (OSCC) but their clinical relevance with respect to excision margins is still controversial. The purpose of the study was to determine the expression of molecular markers (p53& Rb) for predicting early locoregional recurrence in oral cancer. METHODS Histopathological specimens of 93 patients of oral cavity squamous cell carcinoma were subjected to p53 mutation and Rb protein testing in tumour and at the closest negative margin on H &E using immunohistochemistry. The expression of p53 and Rb in tumour tissue and at excision margin was correlated with clinicopathologic parameters recurrence and survival over a 2 year follow up period. RESULTS p53 mutation expression in tumour tissue was associated with increased recurrence (22.5 % versus 11.3 % P = 0.13) and mortality (17.5 % versus 5.6 % P = 0.056). p53 expression at margins is also associated with higher recurrence and mortality. Rb overexpression in tumour tissue is not significantly associated with recurrence (15 % and 16.4 %). Rb overexpression at margins had higher recurrence (40 %; P = 0.627) and higher mortality (60 %) in comparison to Rb negative cases (16.4 %versus 6.8 % respectively). CONCLUSIONS Clinical and routine histopathological assessments of margins remain the standard method of prognosticating and planning adjuvant treatment. Determination of molecular positive margins using p53 & Rb in oral cancer may aid in identifying patients at high risk of development of recurrence despite negative pathological margins. KEYWORDS Rb, Margin, P53, Recurrence.

Hubungan ekspresi p53, Bcl-2, c-Myc dan MMP-9 dengan gambaran klinikopatologi karsinoma sel skuamosa kepala-leher

2016 ◽  
Vol 46 (1) ◽  
pp. 53
Author(s):  
Azwar Azwar ◽  
Sofia Mubarika ◽  
Agus Surono
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Squamous Cell ◽  
Tumor Location ◽  
Neck Squamous Cell Carcinoma ◽  
Second Primary ◽  
Cross Sectional ◽  
P53 Expression ◽  
Local Metastasis

Latar belakang: Karsinoma sel skuamosa kepala dan leher merupakan salah satu kanker terseringdi seluruh dunia. Pendekatan pengobatan agresif dan multidisiplin telah dilakukan, namun belum adapeningkatan yang signifikan dalam kelangsungan hidup 5 tahun, selama 20 tahun terakhir. Kegagalanpengobatan terjadi dalam bentuk kekambuhan lokoregional, metastasis jauh, dan/atau tumor primer kedua.Berbagai penanda molekular tumor telah diteliti untuk mengetahui potensinya dalam memprediksi hasilpenyakit atau respon terhadap terapi.Tujuan: Mengetahui hubungan ekspresi protein p53, Bcl-2, c-Myc,dan MMP-9 berdasarkan gambaran klinikopatologis karsinoma sel skuamosa kepala dan leher di RumahSakit dr. Zainoel Abidin.Metode: Studi menggunakan desain cross sectional. Sampel terdiri dari 60blok parafin karsinoma sel skuamosa kepala dan leher. Prosedur pewarnaan imunohistokimia dilakukandengan menggunakan antibodi monoklonal terhadap p53, Bcl-2, c-Myc, dan MMP-9. Ekspresi proteinp53, Bcl-2, c-Myc, dan MMP-9 dianalisis secara imunohistokimia pada karsinoma sel skuamosa kepaladan leher kemudian hasilnya dihubungkan dengan parameter klinikopatologis seperti usia, jenis kelamin,lokasi tumor, diferensiasi tumor, metastasis kelenjar getah bening dan stadium tumor, kemudian dianalisisstatistik dengan Chi square.Hasil: Hasil penelitian menunjukkan terdapat hubungan bermakna tingkatekspresi p53 dengan metastasis lokal (p=0,021) dan ada hubungan bermakna tingkat ekspresi MMP-9dengan lokasi tumor (p=0,026). Tidak terdapat hubungan ekspresi p53, Bcl-2, cMyc, dan MMP-9 terhadapusia, jenis kelamin, stadium tumor, diferensiasi histologi, tingkat T, N, dan metastasis jauh.Kesimpulan:Ada hubungan ekpresi p53 dengan metastasis kelenjar limfe regional dan ekspresi MMP-9 dengan lokasitumor pada karsinoma sel skuamosa kepala dan leher. Kata kunci: Karsinoma sel skuamosa kepala dan leher, p53, Bcl-2, c-Myc, MMP-9 ABSTRACTBackground: Head and neck squamous cell carcinoma (HNSCC) is one of the most commoncancers world wide. Although aggressive and multidisciplinary approach to the treatment has been done,there is no significant improvement in 5-year survival in the last 20 years. Treatment failure occurredin the form of locoregional recurrence, distant metastasis, and/or a second primary tumor. A variety oftumor molecular markers have been studied to determine their potential in predicting disease outcome orresponse to the therapy. Purpose: To investigate correlation p53, Bcl-2, c-Myc, and MMP-9 expressionto clinicopathologic parameter in head and neck squamous cell carcinoma patient in dr. Zainoel Abidinhospital. Methods: Cross sectional design study. The sample was consisted of 60 paraffin blocks ofhead and neck squamous cell carcinoma. Procedure of immunohistochemical staining used monoclonalantibodies against p53, Bcl-2, c-Myc, and MMP-9. Expression of p53 protein, Bcl-2, c-Myc, and MMP-9were analyzed by immunohistochemistry in head and neck squamous cell carcinoma. Then, the results were linked to clinicopathologic parameters such as age, sex, tumor location, tumor differentiation,lymph node metastasis and tumor stage, and statistically analyzed with Chi square. Results: The resultsshowed there were significant correlation between p53 expression level with local metastasis (p=0,021)and significant correlation of MMP-9 expression levels with tumor location (p=0,026). There were norelationship of p53, Bcl-2, cMyc and MMP-9 expressions based on age, sex, stage tumor, histologicdifferentiation, level of T, N, and distant metastases. Conclusion: There were relationships between p53expression with local metastasis and MMP-9 expression with tumor location in head and neck squamouscell carcinoma. Keywords: Head and neck squamous cell carcinoma, p53, Bcl-2, c-Myc, MMP-9

Spindle Cell Carcinoma of the Tongue: Fallacies in Its Diagnosis

2018 ◽  
Vol 3 (02) ◽  
Author(s):  
Amrit Kaur Kaler, Shweta C, Smitha Chandra B.C, Rajeev Naik
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Cavity ◽  
Cell Carcinoma ◽  
Cell Population ◽  
Squamous Cell ◽  
Spindle Cell ◽  
Spindle Cell Carcinoma ◽  
Biphasic Tumor ◽  
Carcinoma Of The Tongue ◽  
Ihc Markers

Spindle cell carcinoma is a rare aggressive biphasic tumor, composed of neoplastic proliferation of both epithelial (squamous) and spindle cell population. It constitutes about 1% of all oral cavity tumors 2a and is almost rare on the tongue; only few cases have been reported so far. This variant of squamous cell carcinoma, comprises major diagnostic problems due to its varied histomorphology and resemblance to sarcomatous lesion; hence diligent screening and IHC markers are mandatory for its diagnosis.

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