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Immunohistochemistry for CK7 of a metastatic undifferentiated carcinoma to a lymph node. Because the keratin-7 antigen is found in both healthy and neoplastic cells, antibodies to CK7 can be used in immunohistochemistry to distinguish ovarian and transitional cell carcinomas (staining positive) from colonic and prostate cancers (negative), respectively.
A Toker cell is an epithelial cell with clear cytoplasm in the nipple of some women. [1] Toker cells are believed to develop from sebaceous glands. [1] They are cytokeratin 7 (CK7) positive, in contrast to squamous epithelium. [1]
In 2006 a new systematic nomenclature for mammalian keratins was created, and the proteins previously called cytokeratins are simply called keratins (human epithelial category). For example, cytokeratin-4 (CK-4) has been renamed keratin-4 (K4). [3]
Overall, keratin type 2 plays a crucial role in maintaining the strength and integrity of the skin, hair, and nails. Mutations in keratin genes can lead to various genetic disorders that affect these tissues, such as epidermolysis bullosa simplex, a rare condition characterized by blistering and erosion of the skin and mucous membranes. [3]
Microscopy of keratin filaments inside cells. Keratin (/ ˈ k ɛr ə t ɪ n / [1] [2]) is one of a family of structural fibrous proteins also known as scleroproteins.It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, and the outer layer of skin in vertebrates.
The incidence and quality of physical activity education in early childhood education have a strong positive effect on the cognitive, social and physical development of young children. [12] Early childhood is a stage of rapid growth, development and learning and each child makes progress at different speeds and rates. [13]
It is especially valuable for estrogen receptor positive breast cancers but is less sensitive (435-66% elevated), although still more valuable than many other markers, for diagnosing triple-negative breast cancers. This analysis is widely used as a clinically valuable marker for breast cancer.
3815 16590 Ensembl ENSG00000157404 ENSMUSG00000005672 UniProt P10721 P05532 RefSeq (mRNA) NM_000222 NM_001093772 NM_001122733 NM_021099 RefSeq (protein) NP_000213 NP_001087241 NP_001116205 NP_066922 Location (UCSC) Chr 4: 54.66 – 54.74 Mb Chr 5: 75.74 – 75.82 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Proto-oncogene c-KIT is the gene encoding the receptor tyrosine kinase ...