Comparison of L1 consensus primers with E6 type specific primers for detection of human papillomaviruses in paraffin sections of cervical neoplasia

In our comparative study of L1 consensus primers with E6 type-specific primers for detection of human papillomavirus (HPVs) by polymerase chain reaction (PCR) in 35 cases of cervical neoplasia, the detection rate by E6 primers (54%; 19/35) was significantly higher than that by L1 primers (25%; 9/35) (p < 0.01). And all specimens HPV-positive with L1 primers were also positive by E6 primers. HPV DNA could be amplified in 36% (9 of 25) of tissue by L1 consensus primers from which beta-globin gene was amplified as compared with 64% (16 of 25) of tissue by E6 type-specific primers. With the L1 consensus primers, 8 cases were positive for HPV-16 and 1 case was positive for HPV-33. These results show that the L1 consensus primers have inferior sensitivity to the E6 type-specific primers for the detection of HPV by PCR. But the L1 consensus primers have great value in making simultaneous detection of various HPV types in a single tube reaction, thus they permit reduction of time and the economic burden of the experiment.

DNA Patterns by Flow Cytometric Analysis of Squamous Carcinoma Cells of the Cervix Uteri : Relations with Prognosis and Biochemical Characteristics / 대한부인종양콜포스코피학회잡지

This study was performed to find out the relationship between DNA pattern by flow cytometry and the prognosis of cervical squamous cell carcinoma, The subjects were 71 patients who were admitted to Catholic University Medical College Kangnam St. Marys Hospital from September 1983 to May 1989 under the diagnosis of cervical squamous cell carainoma. Samples were obtained from the subjects before chemotherapy or radiation therapy, and a through follow up stduy was carried out an the subjects. The authors obserued the relations between flow cytometric DNA pattern and clinical stage, age of patients, histopathological findings and tumor markers, with the following results. 1. The S-phase of the cell cycle increased significantly in Stages I, ll and III-IV compared to that of Stage O.However, there was no difference between Stages in G0/G1 phase and G2/M phase. 2. The incidence of aneuploid tumor increased significantly according to stage with the rates of increase reaching 22, 22%, 31.57%, 44.44% and 68.75% respectively in Stages 0, I, II, and Ill-lV. 3. The incidence of aneuploid tumor increased significantly depending on the age of patients with the rates standing at 21.42%, 31.58%, 40.90% and 68.75% respectively in the groups of below 40, 41-50, 51-60, and 61 years and over. 4. As for the relation between histopathological findings and the incidenee of aneuploid tumor, no difference was found according to the degree of differentiation, but there were significant differences between the keratinization group(23.07%) and the non keratinization group(51.11%).