In the 18th week of the prenatal life large light cells of mesenchymal origin enter the crypt epithelium of the palatine tonsil to start its reticularisation. They are considered precursors of Langerhans cells.

Over 80% of human cancers originate from the epithelium, which covers outer and inner surfaces organs blood vessels. In stratified bottom layers are occupied by stem stem-like cells that continually divide replenish upper layers. this work, we study spread premalignant mutant clones cancer initiation in epithelium using biased voter model on stacked two-dimensional lattices. Our main result is ...

Unicystic ameloblastoma is a slow-growing tumor originating from the odontogenic epithelium that can be localized within lining of cyst. It commonly affects younger individuals and frequently found in posterior mandible. The classification this based on histopathological characteristics, distinguishing between luminal, intraluminal, mural proliferation epithelium. Treatment options vary dependi...

Thyroid squamous cell carcinoma is very rare. At present, it limited to case reports. Since the thyroid follicular epithelium non-squamous epithelium, how primary (SCC) of occurs still a controversial issue. Hashimoto’s thyroiditis (HT) considered be an independent risk factor for cancer, under basis HT, tumor cells evolve and develop papillary (PTC), particularly de-differentiate into SCC elus...

We report the presence of a rare cell type, olfactory rod cell, in developing zebrafish epithelium. These cells each bear single actin-rich rod-like apical projection extending 5–10 ?m from epithelial surface. Live imaging with ubiquitous Lifeact-RFP label indicates that rods can oscillate. Olfactory arise within few hours pit opening, increase numbers and size during larval stages, develop abs...

due to the high economic value of ostrich and the farming industry to further promote increased productivity, knowledge in different fields of science, including detailed knowledge of tissue structures vital organs from this animal looks. ostrich’s eye is the cornea closest to the human eye because of the same anatomical features of the human cornea, corneal transplantation can be used ostrich....

Secretory component (SC) was studied by indirect immunofluorescence of the ocular surface epithelium. We find that conjunctival epithelium produces this component, and that it is absent in the corneal epithelium. Conjunctival epithelium loses its SC staining within 1 to 2 days as it grows over a denuded corneal stroma. This implies a very rapid turn-off of the SC gene and rapid export of the ge...

introduction: the implantation is a complex procedure that involves many molecules. one of these molecules is integrin specially &alphav;&beta3; which serves as receptor for components of extra cellular matrix to act as bridging molecules between the blastocyst and the endometrial surface during the implantation process. by blocking &alphav;&beta3; interactions, the implantation can be impaired...

introduction to evaluate the expression patterns of cytokeratin (k) 12, 13, and 19 in normal epithelium of the human ocular surface to determine whether k13 could be used as a marker for conjunctival epithelium. methods: total rna was isolated from the human conjunctiva and central cornea. those transcripts that had threefolds or higher expression levels in the conjunctiva than the cornea were ...

The epithelium lining the mouse larynx occupied the transitional zone between the keratinized stratified squamous epithelium lining the oral cavity and the ciliated columnar one continuing to the trachea. The epithelium showed gradations ranging from stratified squamous through stratified cuboidal to ciliated stratified low-columnar type. It is suggested that the epithelium is identical with th...