ABSTRACT
<p><b>OBJECTIVE</b>To analyze the expression and clinical values of HPV L1 capsid protein and p16INK4a protein in uterine cervical lesions.</p><p><b>METHODS</b>Fifty-four cervical intraepithelial neoplasias CIN1, 44 CIN2, 78 CIN3, and 48 squamous cell carcinoma were included in this study. All CIN and squamous carcinomas were stained with anti-HPV L1 capsid protein antibodies and anti-p16INK4a antibody. Forty-five CIN1 patients were followed up for 6 years.</p><p><b>RESULTS</b>Forty-five CIN1 patients were followed up for 6 years, among them 6 cases showed a progression (One case changed to CIN3, 5 cases to CIN2). L1 positivity was found in 50 cases which decreased with CIN increasing (χ(2) = 259.923, P < 0.001) while p16INK4a positivity was found in 177 cases which co-increased with CIN (χ(2) = 48.842, P < 0.001). L1(-)p16INK4a (-) or L1(+)p16INK4a(-) appeared mainly in CIN1 while L1(-)p16INK4a(+) appeared mainly in CIN2 lesions. No progression was found in the group of L1(-)p16INK4a(-) CIN1 patients. The risk of CIN1 progression in L1(-)p16INK4a(+) group was 66.7% while L1(+)p16INK4a(-) group was 9.5%, and L1(+)p16INK4a(+) group was 33.3%.</p><p><b>CONCLUSIONS</b>The expression of p16INK4a together with HPV L1 are different in various cervical lesions, and the combined detection of p16INK4a and HPV L1 can be helpful for estimating the biological potentiality of CIN lesions.</p>
Subject(s)
Adult , Aged , Female , Humans , Middle Aged , Young Adult , Capsid Proteins , Metabolism , Carcinoma, Squamous Cell , Metabolism , Pathology , Virology , Uterine Cervical Dysplasia , Metabolism , Pathology , Virology , Cyclin-Dependent Kinase Inhibitor p16 , Metabolism , Disease Progression , Follow-Up Studies , Oncogene Proteins, Viral , Metabolism , Papillomavirus Infections , Uterine Cervical Neoplasms , Metabolism , Pathology , VirologyABSTRACT
<p><b>OBJECTIVE</b>To determine how patients with infiltrating lobular carcinoma (ILC) differ from patients with the more common infiltrating ductal carcinoma (IDC), and observe the different expression patterns of E-cadherin and p120-catenin proteins in both ILCs and IDCs.</p><p><b>METHODS</b>The patients with ILC admitted to our hospital from Jan 1999 to Dec 2006 and patients with IDC from Jan 2000 to Dec 2000 were included in this study. All their pathological slides were reviewed, and their clinical data and treatment variables were analyzed retrospectively. Then the expression patterns of E-cadherin and p120-catenin proteins in both ILCs and IDCs were detected by immunohistochemistry on tissue microarray.</p><p><b>RESULTS</b>The 5-year overall survival was 81.7% for ILCs and 79.1% for IDCs (P = 0.055). The 5-year disease-free survival was 61.8% for ILCs and 83.7% for IDCs (P < 0.001). Cytoplasmic localization of p120-catenin and loss of E-cadherin expression were more common in ILCs than in IDCs. The complete losses of E-cadherin in ILCs and IDCs were 55.6% (20/36) and 20.4% (45/221, P < 0.001), respectively. The p120-catenin showed a diffuse cytoplasmic localization in 66.7% (24/36) of ILCs and 16.3% (36/221) of IDCs (P < 0.001). Interestingly, the cytoplasmic localization of p120-catenin was clearly associated with the absence of E-cadherin expression in ILCs (P = 0.002), cytoplasmic localization of p120-catenin and absence of E-cadherin expression were observed 55.6% (20/36) in ILCs compared with 4.1% (9/221) in IDCs (P < 0.001).</p><p><b>CONCLUSION</b>ILC has several specific biological and prognostic characteristics which are different in IDC. Different expression patterns of E-cadherin and p120-catenin proteins can be helpful to recognize ILC from IDC.</p>
Subject(s)
Female , Humans , Male , Middle Aged , Bone Neoplasms , Breast Neoplasms , Metabolism , Pathology , Cadherins , Metabolism , Carcinoma, Ductal, Breast , Metabolism , Pathology , Carcinoma, Lobular , Metabolism , Pathology , Catenins , Metabolism , Cytoplasm , Metabolism , Diagnosis, Differential , Disease-Free Survival , Follow-Up Studies , Gene Expression Regulation, Neoplastic , Lung Neoplasms , Neoplasm Recurrence, Local , Retrospective Studies , Survival RateABSTRACT
<p><b>OBJECTIVE</b>To determine the diagnostic value of B72.3, BerEP4 and calretinin in differentiating metastatic carcinoma cells from reactive mesothelial cells (RMC) in serous effusions by using immunocytochemical method (ICC), and to investigate the feasibility of ThinPrep (TP) preparation for ICC.</p><p><b>METHODS</b>One hundred fifty eight serous effusion specimens were examined by ICC on cell block (CB) sections (CB-ICC) using antibodies against of B72.3, BerEP4 and calretinin. Fourty-nine of the samples, ICC on ThinPrep slides (TP-ICC) and CB-ICC were performed concurrently.</p><p><b>RESULTS</b>The sensitivities of B72.3 and Ber-EP4 for detecting carcimoma cells were 76.9% and 69.2% respectively, and when combined the sensitivity was increased to 89.7%. The sensitivity and specificity of Calretinin for detecting mesothelial cells were 90.9% and 87.2% respectively. The sensitivity of B72.3 in differentiating cancer cells from reactive mesothelial cells by CB-ICC and TP-ICC was 78.9% and 68.4%. It was 78.9% and 68.4% of BerEP4 respectively. No statistical significance was observed between CB-ICC and TP-ICC in differentiating metastatic carcinoma cells from reactive mesothelial cells.</p><p><b>CONCLUSION</b>The combination of antibodies of B72.3, Ber-EP4 and calretinin is quite helpful as an auxiliary in differentiating metastatic carcinoma cells from reactive mesothelial cells. ThinPrep preparation slides may effectively replace the cell block sections for ICC in differential diagnosis of serous effusions.</p>