Adherence of B16-F10 melanoma cells to elastin
Conference
·
· Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States)
OSTI ID:5006957
B16-F10 melanoma cells selectivity colonize lung tissue in vivo. The authors have previously shown that these cells adhere preferentially to lung tissue in vitro. To quantify the binding of B16-F10 cells to isolated components of lung tissue, the authors devised a dot-blot cell adhesion assay. Samples were absorbed to 4 mm dots of nylon based paper under non-denaturing conditions, blocked with albumin or hemoglobin, and incubated with radiolabelled cells for 30 min. at 4/sup 0/C. /sup 125/-I labelled B16-F10 cells demonstrated a dose dependent binding to mouse lung elastin. Autoradiography and scanning electron microscopy demonstrated that cells localized preferentially to the elastin dots. The melanoma cells bound more strongly to elastin relative to laminin, fibronectin, collagen types I and IV or heparan sulfate. Neither elastin-associated microfibrillar protein nor fragments of elastin produced by alkali or acid treatment demonstrated significant binding activity for these cells. The findings demonstrate that in addition to its unique mechanical properties that confer elasticity to tissues, elastin can also function as a cell adhesion molecule. The localization of elastin in the lung and its adhesive properties reported here suggest that elastin may facilitate the arrest and eventual colonization of circulating B16-F10 melanoma cells in the mouse lung.
- Research Organization:
- Harvard Medical School, Boston, MA
- OSTI ID:
- 5006957
- Report Number(s):
- CONF-8604222-
- Conference Information:
- Journal Name: Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States) Journal Volume: 45:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550901* -- Pathology-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ADHESION
ANIMAL CELLS
ANIMALS
AUTORADIOGRAPHY
BETA DECAY RADIOISOTOPES
BIOCHEMICAL REACTION KINETICS
BIOLOGICAL LOCALIZATION
BODY
DAYS LIVING RADIOISOTOPES
DISEASES
DOSE-RESPONSE RELATIONSHIPS
ELECTRON CAPTURE RADIOISOTOPES
ELECTRON MICROSCOPY
INTERMEDIATE MASS NUCLEI
IODINE 125
IODINE ISOTOPES
ISOTOPES
KINETICS
LUNGS
MAMMALS
MECHANICAL PROPERTIES
MELANOMAS
MICE
MICROSCOPY
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
RADIOISOTOPES
REACTION KINETICS
RESPIRATORY SYSTEM
RODENTS
SCANNING ELECTRON MICROSCOPY
TUMOR CELLS
VERTEBRATES
59 BASIC BIOLOGICAL SCIENCES
ADHESION
ANIMAL CELLS
ANIMALS
AUTORADIOGRAPHY
BETA DECAY RADIOISOTOPES
BIOCHEMICAL REACTION KINETICS
BIOLOGICAL LOCALIZATION
BODY
DAYS LIVING RADIOISOTOPES
DISEASES
DOSE-RESPONSE RELATIONSHIPS
ELECTRON CAPTURE RADIOISOTOPES
ELECTRON MICROSCOPY
INTERMEDIATE MASS NUCLEI
IODINE 125
IODINE ISOTOPES
ISOTOPES
KINETICS
LUNGS
MAMMALS
MECHANICAL PROPERTIES
MELANOMAS
MICE
MICROSCOPY
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
RADIOISOTOPES
REACTION KINETICS
RESPIRATORY SYSTEM
RODENTS
SCANNING ELECTRON MICROSCOPY
TUMOR CELLS
VERTEBRATES