منابع مشابه
Phenotypic characteristics of cells derived from precursors of human melanoma.
Of 66 specimens from benign melanocytic nevi, including common acquired and congenital nevi, Spitz tumors (epithelioid cell nevi), and melanocytic nevi with dysplasia, 57 could be grown in tissue culture. The cultured cells were identified as melanocytes by the presence of premelanosomes and melanosomes. Cells from 28 of 32 nevus cultures grew in an anchorage-independent way in soft agar with a...
متن کاملUltraviolet radiation A-induced precursors of cutaneous melanoma in Monodelphis domestica.
Two groups of 30 dorsally shaved opossums (Monodelphis domestica) were exposed three times per week for 81 weeks to 250 J/m2 of UV radiation from FS40 sunlamps (approximately 150 J/m2 of UV radiation B; UV-B), or to 2.5 x 10(4) J/m2 of UV radiation A (UV-A) from filtered F40BLB fluorescent lamps (black lights). Animals were monitored for the appearance of nonmelanoma skin tumors (NMSTs) and mel...
متن کاملMelanoma Patients with Low Frequency of CTL Precursors -specific CTLs from Peripheral Blood Lymphocytes
l'i plidi presentation by autologous dendritic cells (DCs) is a new to»!to activate tumor antigen-specific T cells in melanoma patients. However, it is not known whether autologous DCs, differentiated by two of the most efficient protocols (from CD34* progenitors or from monocytes), are equally effective as professional antigen-presenting cells (APCs) when the patients have a low frequency of ...
متن کاملEndothelin receptor B is required for the expansion of melanocyte precursors and malignant melanoma.
Since embryonic development and tumorigenesis share common characteristics, studying the role of genes during development can identify molecules that have similar functions in both processes. C-kit and Endothelin receptor B (EDNRB or ETRB) are crucial for melanocyte development in mice and humans but have different functions. While c-kit is needed for survival throughout development until late ...
متن کاملSynthesis and Characterization of Nanocrystalline Magnetic Pigment via Coordinated Precursors
Nanocrystalline cobalt ferrite as a magnetic black pigment was synthesized via coordinated precursors with a significant decrease of the synthesis temperature using citric acid as a coordinating agent. The structure and properties of the cobalt ferrite powder were characterized by X-ray diffraction (XRD), colorimetric analysis (L*a*b* color parameters), diffuse reflectance spectroscopy and vibr...
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ژورنال
عنوان ژورنال: South African Family Practice
سال: 2004
ISSN: 2078-6190,2078-6204
DOI: 10.1080/20786204.2004.10873105