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Recent evidence has emphasized the importance of programmed cell death, or apoptosis, in the maintenance of tissue homeostasis and pathogenesis of tumors. This study analyzed the significance of apoptosis in relation to the expression of p53 and bcl-2 proteins, tissue proliferation defined by Ki-67 expression, and tissue histology in thyroid tissue. Extent(More)
Pancreatic cancer continues to be a major clinical problem and little is known of the various cellular and molecular events associated with this malignancy. Growth factors and their receptors have important functions in the process of tumor progression. We have examined by immunocytochemistry, the expression of epidermal growth factor (EGF), its receptor(More)
AIMS AND BACKGROUND Altered oncogenic activity is a feature associated with many malignant and premalignant conditions. Among the many oncogenes, ras and myc are commonly altered in many tumors. This study aims to evaluate the expression of ras and c-myc oncoproteins in a total of 204 cervical tissue samples, including premalignant and malignant lesions as(More)
Cell proliferation is an important biological aspect of a tumor cell population which can affect clinical outcome. In addition to other well established clinical and histopathological prognostic criteria? cell kinetic data have significant predictive value. This study evaluates the proliferative activity of benign, premalignant and malignant cervical tissue(More)
Acute lymphoblastic leukemia (ALL) is the most frequent childhood tumor. Although the cure rate has increased dramatically over the past few years, the molecular and cellular biology of this disease is still not fully understood. Important factors affecting prognosis include age, leucocyte count, cytogenetic abnormalities, immunophenotype and sex. However,(More)
N-acetyl D-galactosamine specific lectins were isolated from the seeds of Jack Fruit (Artocarpus integrifolia) and Winged bean (Psophocarpus tetragonolobus) and D-galactose specific lectin was isolated from peanut (Arachis hypogaea). These lectins were conjugated to Horse Radish Peroxidase (HRP) and were used to study the lectin binding properties of benign(More)
We studied the relationship between angiogenesis (using the CD34 antibody), the presence of human papilloma virus (HPV) infection, HPV E6 protein expression and the accumulation of p53 protein at various phases of tumour progression in the uterine cervix. Expression of CD34, p53 and HPV E6 protein was evaluated by immunocytochemistry. Presence of the mutant(More)
The relationship between molecular abnormalities of p53 tumor suppressor gene product and cancer has been well documented. That correlation may exist between immunocytochemically detectable amount of p53 protein and neoplasia is evidenced by several studies. Detection of p53 protein by immunocytochemistry varies depending on the methods and antibodies used.(More)
Immunocytochemical localization of the basement membrane (BM) proteins laminin, type-IV collagen and fibronectin were analyzed in normal cervical epithelium, low grade squamous intraepithelial lesions (SILs), high grade SILs and invasive squamous cell carcinoma (SCC) of the uterine cervix. A regular, thick and continuous BM was present in normal cervical(More)
Comprehensive childhood cancer treatment in the modern era means not only strenuous treatment regimens and meticulous nursing care, it also implies attention to social, psychological, and financial aspects of disease and treatment. In a developing country like ours, though it is possible to provide good medical and nursing care in government set-up, there(More)