Journal: International Journal of Molecular Sciences
Article Title: Comprehensive Analysis of Exosomal MicroRNAs Derived from UVB-Irradiated Keratinocytes as Potential Melanogenesis Regulators
doi: 10.3390/ijms25063095
Figure Lengend Snippet: Exosomes derived from UVB-irradiated keratinocytes are isolated and characterized by their size. ( A ) Confirmation of exosome specific markers such as CD9 and CD81 using Western blot. Negative exosomal marker calnexin was lost in the samples. ( B ) Exosome size distribution measured using electrophoretic trace. ( C ) Size distribution of microvesicles (nm) assessed using nanoparticle tracking analysis. The NTA results of keratinocyte cell-derived exosomes showed a 114 ± 6.5 nm mode size of the exosomes.
Article Snippet: The antibodies used were as follows: B-actin antibody (Sigma, St. Louis, MO, USA), MITF antibody (ThermoFisher Scientific, Fremont, CA, USA), rabbit anti-tyrosinase (Abcam, Cambridge, UK: ab170905), rabbit anti-TRP1 (Abcam, ab178676), rabbit anti-TRP2/DCT (Abcam, ab221144), anti-CD63 antibody (mouse monoclonal to CD63, ab59479), anti-human CD9 IgG rabbit polyclonal (System Biosciences, Palo Alto, CA, USA), and anti-human calnexin rabbit polyclonal (Cell signaling Technology, Danvers, MA, USA, Beverly; National Institute of Health, Bethesda, MD, USA).
Techniques: Derivative Assay, Irradiation, Isolation, Western Blot, Marker