We have developed a model system for progression of human epithelial cells to malignancy, using a human papillomavirus type 18 (HPV-18)-immortalized human keratinocyte cell line. Cells of cell line FEP-1811 were nontumorigenic in athymic mice through at least 12 passages in culture, but after 32 passages were weakly tumorigenic, producing tumors that regressed. After 62 passages they produced i...

The epidermoid cyst is a development cyst, skin, filled with keratin and imprisoned by stratified squamous epithelium similar to skin. They are more frequent in males. Clinically presenting as flabby, prevalent over the face, neck and back. They are usually asymptomatic and its etiology is directly linked to trauma, as well as the imprisonment of epithelial rests during embryonic fusion. This s...

A semiempirical molecular orbital method (CAChe) was applied to delineate the relationship between cytotoxicity against the human squamous cell carcinoma line HSC-2 (evaluated by 50% cytotoxic concentration, CC50) of 20 coumarin (2H-pyran-2-one) derivatives and twelve physical parameters (descriptors) calculated by the CONFLEX/PM3 method. There was a highly significant correlation between the C...

Although TGF-β is known to be related tumor proliferation, invasion and epithelial-mesenchymal transition (EMT), its effects on oral carcinomas remain unclear. This study aimed elucidate the of squamous cell carcinoma (OSCC). In present in vitro study, three human OSCC lines; SAS (tongue cancer), Ca9-22 (mandibular gingival cancer) HSC-3 (cervical lymph nodes metastasis tongue were treated with...

Background – Reproductive tract infection (RTI) represents a major public health problem in developing countries.The consequences of RTI’s are several and may be severe in some cases. Objectives –To find out the prevalence of symptoms of RTI among the married women of 21-65 years, To identify clinical and cytological abnormalities among the symptomatic women, To find out association between soc...

We describe the pathology in a captive adult White lipped treefrog (Litoria infrafrenata) with a squamous cell carcinoma of the skin and a free-living adult Common green treefrog (L. caerulea) with an adenocarcinoma of the skin. Although many amphibian neoplasms have been reported world wide, none had been described in Australian species.

The most compelling reason and primary goal of treating actinic keratoses is to prevent malignant transformation into invasive squamous cell carcinoma, and although there are well established guidelines outlining treatment modalities and regimens for squamous cell carcinoma, the more commonly encountered precancerous actinic lesions have no such standard. Many options are available with variabl...

Department of Oncology, Radiation Oncology, University of Turin, Turin, Italy; Department of Oncology, Radiation Oncology, AOU Citta’ della Salute e della Scienza, Turin, Italy; Department of Surgery, General Surgery 2U and Liver Transplantation Center, AOU Citta’ della Salute e della Scienza, Turin, Italy; Department of Surgical Sciences, General Surgery 2U and Liver Transplantation Center, Un...

Objective To explore the effect of cigarette smoke (CS) on the development of squamous metaplasia in human airway epithelial cells and the role of MAPK- and FoxA2-signaling pathways in the process. Materials and methods In an in vitro study, we treated the bronchial epithelial cell line BEAS2B with CS extract, followed by treatment with the ERK inhibitor U0126, the JNK inhibitor SP600125, or ...