ABSTRACT: The aim of this study was to assess the expression levels of two proteins, such as PRDX6 and cyclophilin A (CypA), and to evaluate their relationship with clinicopathologic features and survival in tongue squamous cell carcinomas (TSCCs).
An immunohistochemical study was performed comprising a total of 42 tissue samples of patients suffering from TSCCs as well as 10 corresponding adjacent normal tissues. After detection of PRDX6 and CypA, their expression levels were semiquantitatively evaluated and correlated with clinicopathologic variables.
Both PRDX6 and CypA expressions were significantly higher in tissue samples of TSCCs compared with the 10 corresponding adjacent normal tissues (P < 0.01). A statistically significant correlation in TSCCs regarding the expression of PRDX6 and CypA was revealed (P = 0.005), and the lymphadenectasis was correlated with PRDX6 (P < 0.05). Results of a multivariate analysis revealed age, CypA expression, cervical lymph node metastases, and tongue cancer differentiation to be independent prognostic variables in respect of the overall survival rate (P < 0.05).
It could be detected that PRDX6 and CypA are associated with tumorigenesis in TSCCs. High levels of CypA expression may predict reduced survival time.
Oral Diseases 04/2011; 17(3):328-34. · 2.49 Impact Factor
ABSTRACT: Recent studies revealed that immune and immune-mediated inflammatory events may contribute to the pathogenesis of haemangioma. As a modulator of immune responses, the allograft inflammatory factor-1 (AIF-1) is involved in immune dysfunction and macrophage activation.
To investigate the possible role of AIF-1 in the progression of haemangioma.
In a retrospective study of haemangiomas in the oral and facial regions, we assessed lesional immunoreactivities for AIF-1, CD68 and Ki67. Negative controls were similarly confirmed, including 24 pyogenic granulomas, 26 vascular malformations, five samples of normal skin, 10 squamous cell carcinomas of the tongue and three placentas. Immunostaining for each antigen in the haemangiomas was compared with control tissues.
Out of all the samples, intense immunoreactivity for AIF-1 was detected in 17 of 19 (89%) haemangioma specimens, with a specific location in the endothelial cells. The intensity of AIF-1 immunostaining did not show remarkable difference among proliferating, involuting and involuted haemangiomas. CD68-positive endothelial cells were found in the neovessels of haemangiomas, as well as in pyogenic granulomas and squamous cell carcinoma.
The exclusive expression of AIF-1 on endothelial cells of haemangiomas suggests that it may play a significant role in the pathophysiology and progression of haemangiomas. AIF-1 can be used as an additional biomarker for infantile haemangiomas. CD68-positive cells participate in the neovessel formation during proliferative haemangioma and contribute to the promotion of haemangioma growth.
British Journal of Dermatology 09/2008; 159(4):811-9. · 3.67 Impact Factor
ABSTRACT: Wilms' tumour (nephroblastoma) is a renal tumour that develops in childhood; it is one of the most common malignant tumours in children under 5 years old. Bone metastases are extremely rare in Wilms' tumour. Reported here is a patient who underwent nephrectomy for Wilms' tumour at the age of 2 years and presented with a jawbone mass in her left mandible 9 months later.
International Journal of Oral and Maxillofacial Surgery 01/2007; 35(12):1160-1. · 1.51 Impact Factor