Skip to Content
Merck
  • 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
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Carbon, mesoporous, less than 100 ppm Al, Ti, Fe, Ni, Cu, and Zn combined
Sigma-Aldrich
Carbon, mesoporous, nanopowder, less than 500 ppm Al, Ti, Fe, Ni, Cu, and Zn combined
Sigma-Aldrich
Carbon, mesoporous, nanopowder, graphitized, less than 250 ppm Al, Ti, Fe, Ni, Cu, and Zn combined
Supelco
Ethanol solution, certified reference material, 2000 μg/mL in methanol
Supelco
Dehydrated Alcohol, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Carbon, mesoporous, hydrophilic pore surface
Sigma-Aldrich
Carbon, mesoporous
USP
Dehydrated Alcohol, United States Pharmacopeia (USP) Reference Standard
Sigma-Aldrich
Activated Charcoal Norit®, Norit® GAC 1240W, from coal, for potable water processing, steam activated, granular
Sigma-Aldrich
Activated Charcoal Norit®, Norit® RB3, for gas purification, steam activated, rod
Sigma-Aldrich
Activated Charcoal Norit®, Norit® SX2, powder, from peat, multi-purpose activated charcoal, steam activated and acid washed
Sigma-Aldrich
Activated Charcoal Norit®, Norit® PK 1-3, from peat, steam activated, granular
Sigma-Aldrich
Activated Charcoal Norit®, Norit® SX ultra, from peat, corresponds U.S. Food chemicals codex (3rd Ed.), steam activated and acid washed, highly purified, powder
Sigma-Aldrich
Hexamethyldisilazane, produced by Wacker Chemie AG, Burghausen, Germany, ≥97.0% (GC)
Supelco
Hexamethyldisilazane, for GC derivatization, LiChropur, ≥99.0% (GC)
Sigma-Aldrich
Carbon nanofibers, pyrolitically stripped, platelets(conical), >98% carbon basis, D × L 100 nm × 20-200 μm
Supelco
Activated Charcoal Norit®, Norit® RBAA-3, rod
Supelco
N,O-Bis(trimethylsilyl)acetamide, for GC derivatization, LiChropur, ≥98.5% (GC)
Sigma-Aldrich
Hexamethyldisilazane, reagent grade, ≥99%
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, anhydrous, ≥99.5%
Sigma-Aldrich
N,O-Bis(trimethylsilyl)acetamide, synthesis grade, ≥95%
Sigma-Aldrich
Methane-12C, 13C-depleted, 99.9 atom % 12C
Sigma-Aldrich
Hexamethyldisilazane, ReagentPlus®, 99.9%
Sigma-Aldrich
Ethyl alcohol, Pure, 190 proof, ACS spectrophotometric grade, 95.0%
Supelco
Ethanol standards 10% (v/v), 10 % (v/v) in H2O, analytical standard
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, for molecular biology
Sigma-Aldrich
Ethanol, purum, fine spirit, denaturated with 4.8% methanol, F25 METHYL1, ~96% (based on denaturant-free substance)
Sigma-Aldrich
Ethanol, purum, absolute ethanol, denaturated with 2% 2-butanone, A15 MEK1, ≥99.8% (based on denaturant-free substance)
Sigma-Aldrich
Ethanol, ACS reagent, prima fine spirit, without additive, F15 o1
Sigma-Aldrich
Ethyl alcohol, Pure, 200 proof, HPLC/spectrophotometric grade