Ki-67 and p53 correlation prognostic value in squamous cell carcinomas of the oral cavity and tongue.
Epidermoid carcinomas represent from 90% to 95% of oral cavity malignant neoplasias, making up 13,470 cases/year.


OBJECTIVE
To correlate p53 and Ki-67 expressions in mouth and tongue carcinomas with lymph node status, gender, histological grade, tumor volume and pathological stage.


METHODS
We carried out a retrospective study of 28 cases of mouth and tongue epidermoid carcinomas. They were submitted to immunohistochemical study in order to check the expression of p53 and Ki-67 antibodies and statistically compare them in terms of lymph node status, gender, histological grade, tumor volume and pathological staging.


RESULTS
The individually analyzed p53 proved to have statistical significance (p<0.05) when compared to tumor volume (p=0.029). Despite a strong tendency, the p53/tumor volume relation was not significant. When p53 + Ki67 were analyzed, tumor volume had p < 0.05 (p = 0.029).


CONCLUSIONS
Literature shows that the expression of p53 and Ki-67 is related to the presence of metastasis to lymph nodes and a worse prognosis.


CONCLUSIONS
In oral cavity and tongue epidermoid carcinomas, p53 and Ki-67 are related to larger tumors, metastasis to lymph nodes and very likely to a worse prognosis.
Universidade Luterana Do Brasil - ULBRA Departamento de Patologia, Brazil.
Rafael Da Ros
Rda R
Motta
Claudio Galeano
CG
Zettler
Eduardo
E
Cambruzzi
Geraldo Pereira
GP
Jotz
Renata Brutti
RB
Berni
D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology / Q000556:secondary; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000378:metabolism*; D008297:Male; D009062:Mouth Neoplasms / Q000378:metabolism* / Q000473:pathology; D009367:Neoplasm Staging; D011379:Prognosis; D014062:Tongue Neoplasms / Q000378:metabolism* / Q000473:pathology; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism*
D019394:Ki-67 Antigen; D016159:Tumor Suppressor Protein p53