- Exploring the human mesenchymal stem cell tubule communication network through electron microscopy.
Exploring the human mesenchymal stem cell tubule communication network through electron microscopy.
Ultrastructural pathology (2014-10-01)
Sabrina Valente, Roberta Rossi, Leonardo Resta, Gianandrea Pasquinelli
PMID25268461
要旨
Cells use several mechanisms to transfer information to other cells. In this study, we describe micro/nanotubular connections and exosome-like tubule fragments in multipotent mesenchymal stem cells (MSCs) from human arteries. Scanning and transmission electron microscopy allowed characterization of sinusoidal microtubular projections (700 nm average size, 200 µm average length, with bulging mitochondria and actin microfilaments); short, uniform, variously shaped nanotubular projections (100 nm, bidirectional communication); and tubule fragments (50 nm). This is the first study demonstrating that MSCs from human arteries constitutively interact through an articulate and dynamic tubule network allowing long-range cell to cell communication.
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活性炭Norit®, Norit® GAC 1240W, from coal, for potable water processing, steam activated, granular
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エタノール, purum, fine spirit, denaturated with 4.8% methanol, F25 METHYL1, ~96% (based on denaturant-free substance)
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カーボンナノファイバー, graphitized, platelets(conical), >98% carbon basis, D × L 100 nm × 20-200 μm
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活性炭Norit®, Norit® SX ultra, from peat, corresponds U.S. Food chemicals codex (3rd Ed.), steam activated and acid washed, highly purified, powder
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カーボンナノファイバー, pyrolitically stripped, platelets(conical), >98% carbon basis, D × L 100 nm × 20-200 μm
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活性炭Norit®, Norit® SX2, powder, from peat, multi-purpose activated charcoal, steam activated and acid washed
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グラファイト化炭素, nanopowder, graphitized, less than 250 ppm Al, Ti, Fe, Ni, Cu, and Zn combined