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2016 ; 11
(3
): e0150004
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Membrane Blebbing Is Required for Mesenchymal Precursor Migration
#MMPMID26930466
de Lucas B
; Bernal A
; Pérez LM
; San Martín N
; Gálvez BG
PLoS One
2016[]; 11
(3
): e0150004
PMID26930466
show ga
Mesenchymal precursors (MPs) present some advantageous features, such as
differentiation and migration, which make them promising candidates for cell
therapy. A better understanding of MP migration characteristics would aid the
development of cell delivery protocols. Traditionally, cell migration is thought
to occur only through the formation of lamellipodia. More recently,
contractility-driven bleb formation has emerged as an alternative mechanism of
motility. Here we report that MPs derived from different tissues present
spontaneously dynamic cytoplasmic projections in sub-confluent culture, which
appear as a combination of lamellipodia with blebs in the leading edge. Upon
initial seeding, however, only bleb structures could be observed.
Immunofluorescence revealed the presence of pERM, RhoA and F-actin during the
blebbing process. Results from migration assays in the presence of blebbistatin,
a myosin II inhibitor, showed that bleb formation correlated with migratory
capacity, suggesting a functional role for blebs in migration. Bleb formation
might be a useful mechanism to improve cell migration in cellular therapy
protocols.