Biomaterial Database

Co-cultivation of retinoblastoma with fibroblasts, iris pigment epithelium, and retinal pigment epithelium in tissue culture. 1983

M J Weiner, and D M Albert, and B L Gallie, and J L Craft

Retinoblastoma cells of the Y79 line were co-cultivated with human fibroblasts and bovine iris and retinal pigment epithelium in tissue culture. The Y79 cells, which characteristically grow as a suspension culture, were found to attach directly to the fibroblasts and pigment epithelium on the flask surface. Electron microscopic examination of the fibroblast-retinoblastoma co-cultures revealed numerous pinocytotic vesicles lining the fibroblast cell borders that were in contact with the tumor cells. The retinoblastoma cells contained increased numbers of ribosomes, endoplasmic reticulum, and-mitochondria. Fibroblastic processes appeared to wrap around and engulf tumor cells. In both the iris and retinal pigment epithelium co-cultures with retinoblastoma cells, there were increased numbers of mitochondria in the tumor cells in areas adjacent to pigment epithelium but no pinocytotic vesicles were seen. The pigment epithelium attached to Y79 cells showed fewer processes than did the fibroblasts in co-culture. In summary, both fibroblast and pigment epithelium functioned as an effective carrier cell layer for retinoblastoma cells. In addition, we believe that the fibroblast layer removed substances secreted by the tumor cells via pinocytotic vesicles.

UI	MeSH Term	Description	Entries
D007498	Iris	The most anterior portion of the uveal layer, separating the anterior chamber from the posterior. It consists of two layers - the stroma and the pigmented epithelium. Color of the iris depends on the amount of melanin in the stroma on reflection from the pigmented epithelium.
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D010857	Pigment Epithelium of Eye	The layer of pigment-containing epithelial cells in the RETINA; the CILIARY BODY; and the IRIS in the eye.	Eye Pigment Epithelium
D002417	Cattle	Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.	Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002460	Cell Line	Established cell cultures that have the potential to propagate indefinitely.	Cell Lines,Line, Cell,Lines, Cell
D003228	Conjunctiva	The mucous membrane that covers the posterior surface of the eyelids and the anterior pericorneal surface of the eyeball.	Bulbar Conjunctiva,Palpebral Conjunctiva,Plica Semilunaris of Conjunctiva,Plicae Semilunares of Conjunctiva,Tunica Conjunctiva,Conjunctiva, Bulbar,Conjunctiva, Palpebral,Conjunctivas
D003584	Cytological Techniques	Methods used to study CELLS.	Cytologic Technics,Cytological Technic,Cytological Technics,Cytological Technique,Technic, Cytological,Technics, Cytological,Technique, Cytological,Techniques, Cytological,Cytologic Technic,Technic, Cytologic,Technics, Cytologic
D005134	Eye Neoplasms	Tumors or cancer of the EYE.	Cancer of Eye,Eye Cancer,Cancer of the Eye,Neoplasms, Eye,Cancer, Eye,Cancers, Eye,Eye Cancers,Eye Neoplasm,Neoplasm, Eye
D005347	Fibroblasts	Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules.	Fibroblast
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man