Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
Research Article
Morphological Characteristics of Echinocytes: Novel Quantification of Spicule Geometry Using Scanning Electron Microscopy
Author(s): Samantha Weber-Fishkin, Anna Eligulashvili, Lesley D Frame and Mary D Frame*
Healthy Red Blood Cells (RBCs) are biconcave discs, whose shape is mediated by the components of the
erythroid membrane. Pathologic conditions that alter the fluidity of the membrane bilayer result in less
deformable cells and, often, abnormal morphologies. Echinocytes are one such morphology characterized
by dispersed spicules on the RBC surface. Our objectives are (1) to quantify the well-established qualitative
descriptions of stage I, II, and III echinocytes, (2) to determine whether spicule size and symmetry are
maintained within a stage of echinocytes, and (3) to determine whether disrupting specific cytoskeletal and
transmembrane proteins will result in specific spicule morphologies in cold stored blood. RBCs obtained
from healthy human donors were analyzed using optical brightfield and Scanning Electron Microscopy
(SEM) imaging. Topology and topography measurements wer.. View more»