Title:Cellular Uptake Pathways of Nanoparticles: Process of Endocytosis and
Factors Affecting their Fate
Volume: 23
Issue: 5
Author(s): Sameer Varma*, Smita Dey and Dhanabal Palanisamy
Affiliation:
- Department of Pharmaceutical Biotechnology, JSS Academy of Higher Education & Research, JSS College of
Pharmacy, Ooty, 643001, Tamil Nadu, India
Keywords:
Internalization, functionalization, permeation, magnetic field, ultrasound, phagocytosis, clathrin, caveolae, macropinocytosis.
Abstract: Background: Efficient and controlled internalization of NPs into the cells depends on
their physicochemical properties and dynamics of the plasma membrane. NPs-cell interaction is a
complex process that decides the fate of NPs internalization through different endocytosis
pathways.
Objectives: The aim of this review is to highlight the physicochemical properties of synthesized
nanoparticles (NPs) and their interaction with the cellular-dynamics and pathways like
phagocytosis, pinocytosis, macropinocytosis, clathrin, and caveolae-mediated endocytosis, and
the involvement of effector proteins domain such as clathrin, AP2, caveolin, Arf6, Cdc42,
dynamin and cell surface receptors in the endocytosis process of NPs.
Methods: An electronic search was performed to explore the focused reviews and research
articles on types of endocytosis and physicochemical properties of nanoparticles and their impact
on cellular internalizations. The search was limited to peer-reviewed journals in the PubMed
database.
Results: This article discusses in detail, how different types of NPs and their physicochemical
properties such as size, shape, aspect ratio, surface charge, hydrophobicity, elasticity, stiffness,
corona formation, and surface functionalization change the pattern of endocytosis in the presence
of different pharmacological blockers. Some external forces like a magnetic field, electric field,
and ultrasound exploit the cell membrane dynamics to permeabilize them for efficient
internalization with respect to fundamental principles of membrane bending and pore formation.
Conclusion: This review will be useful to attract and guide the audience to understand the
endocytosis mechanism and its pattern with respect to physicochemical properties of NPs to
improve their efficacy and targeting to achieve the impactful outcome in drug-delivery and
theranostic applications.