Chronic UV irradiation of the skin not only causes skin cancer in humans but modifies immune responses generated within the epidermis, resulting in impaired immunity against a variety of infectious as well as noninfectious agents. In mice, tumors induced by chronic UV irradiation grow faster when transplanted into mice that are immunosuppressed by UV irradiation. To investigate epidermal cells ...

Background: Solitary fibrous tumor (SFT) is a mesenchymal tumor which is most commonly seen in the pleura; however it can be seen in other organs such as the meninge, gastrointestinal tract, soft tissue, bone, and skin. SFT should be differentiated from other mesenchymal tumors in these organs. Immunohistochemistry plays a pivotal role for the histopathologic diagnosis...

We generated a mouse strain lacking protein kinase Calpha (PKCalpha) and evaluated the significance of the enzyme in epithelial hyperplasia and tumor formation. PKCalpha-deficient mice exhibited increased susceptibility to tumor formation in two-stage skin carcinogenesis by single application of 7,12-dimethylbenz(a)anthracene (DMBA) for tumor initiation and repeated applications of 12-O-tetrade...

We generated a mouse strain lacking protein kinase CA (PKCA) and evaluated the significance of the enzyme in epithelial hyperplasia and tumor formation. PKCA-deficient mice exhibited increased susceptibility to tumor formation in two-stage skin carcinogenesis by single application of 7,12dimethylbenz(a)anthracene (DMBA) for tumor initiation and repeated applications of 12-O-tetradecanoylphorbol...

Wattenberg EV. Palytoxin: exploiting a novel skin tumor promoter to explore signal transduction and carcinogenesis. Am J Physiol Cell Physiol 292: C24–C32, 2007. First published July 19, 2006; doi:10.1152/ajpcell.00254.2006.—Palytoxin is a novel skin tumor promoter, which has been used to help probe the role of different types of signaling mechanisms in carcinogenesis. The multistage mouse skin...

Skin is a unique target for vaccination. Targeting keratinocytes to produce proinflammatory mediators improve immunity rational approach vaccine design. Keratinocytes genetically engineered overexpress the stress response related transcription factor x-box binding protein 1 (XBP1) increased production of and co-delivered antigen. Keratinocyte-specific overexpression XBP1 through cutaneous genet...

background:non-melanoma skin cancer (nmsc), the most prevalent types being squamous cell carcinoma (scc) and basal cell carcinoma (bcc), is the most common type of malignancy in human beings. these neoplasms are more frequent in the elderly and fair skinned people and mainly occur on sun-exposed sites of the body. ultraviolet b (uvb) has a well-known effect in induction and promotion of growth ...

Melanoma is originating from melanocytes, it a malignant tumor with high metastatic potential. It the leading cause of moratlity skin cancer, Nail melanoma rare form melanoma. we report new case this localization

Background: Basal cell carcinoma (BCC) is the most common cutaneous malignancy. UV light is an important risk factor for BCC, as well as X-ray and other ionizing radiations. The aim of this study was evaluation and risk factor assessment of BCC cases referred to Razi hospital tumor clinic. Methods: Patients referred from general clinics with skin biopsies consistent with Basal Cell Carcinoma we...

background: non-melanoma skin cancer is the most common malignant tumor in humans. the role of ultraviolet radiation is well-known in the pathogenesis of basal cell carcinoma (bcc) and squamous cell carcinoma (scc). cd10 is a zinc-dependent metallopeptidase known as common acute lymphoblastic leukemia antigen (calla). although cd10 expression has been investigated in some cutaneous tumors, to o...