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Membrane Dynamics in Health and Disease: Impact on Cellular Signalling

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Abstract

Biological membranes display a staggering complexity of lipids and proteins orchestrating cellular functions. Superior analytical tools coupled with numerous functional cellular screens have enabled us to query their role in cellular signalling, trafficking, guiding protein structure and function–all of which rely on the dynamic membrane lipid properties indispensable for proper cellular functions. Alteration of these has led to emergence of various pathological conditions, thus opening an area of lipid-centric therapeutic approaches. This perspective is a short summary of the dynamic properties of membranes essential for proper cellular functions, dictating both protein and lipid functions, and mis-regulated in diseases. Towards the end, we focus on some challenges lying ahead and potential means to tackle the same, mainly underscored by multi-disciplinary approaches.

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adapted in part with permission from (Bigay and Antonny 2012)

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Abbreviations

lo :

Liquid ordered domains

lLd :

Liquid disordered domains/phase

PALM:

Photoactivated localization microscopy

STED:

Stimulated emission depletion

NSOM:

Near-field scanning optical microscopy

FRET:

Förster resonance energy transfer

iSCAT:

Interferometric scattering microscopy

SANS:

Small-angle neutron scattering

SPT:

Single particle tracking

FCS:

Fluorescence correlation spectroscopy

svFCS:

Spot variation fluorescence correlation spectroscopy

GUVs:

Giant unilamellar vesicles

AFM:

Atomic force microscopy

PH:

Pleckstrin homology

COPI:

Coat protein I

SM:

Sphingomyelin

GPCR:

G protein-coupled receptor

GTP:

Guanosine triphosphate

PIP2:

Phosphatidyl inositol 4, 5 bisphosphate

IgE:

Immunoglobulin E

FCϵRI:

High affinity IgE receptor

PS:

Phosphatidyl serine

PE:

Phosphatidyl ethanolamine

CD44:

Cluster of differentiation 44

CD24:

Cluster of differentiation 24

EGFR:

Epidermal growth factor receptor

PI:

Phosphatidyl inositols

Arp 2/3:

Actin related proteins 2/3

WASP:

Wiskott–Aldrich syndrome protein

TDM:

Trehalose Dimycolate

MLT:

Membrane lipid therapy

PI3K:

Phosphoinositide 3 kinase

CDC42:

Cell division control protein 42

RAC1:

Ras-related C3 botulinum toxin substrate 1

Caspase:

Cysteine-aspartic proteases

FADD:

Fas-associated death domain-containing protein

DISC:

Death-inducing signalling complex

PPARα:

Peroxisome proliferator-activated receptor alpha

DAG:

Diacyl glycerol

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Acknowledgements

We thank Dr. Rishikesh Narayan for comments on this manuscript. The work in our lab is supported by DBT-Ramalingaswami fellowship and DST Inspire Faculty Award awarded to SK. PA acknowledges DBT for PhD fellowship.

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Correspondence to Shobhna Kapoor.

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The authors declare that they have no conflicts of interest.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Adhyapak, P., Kapoor, S. Membrane Dynamics in Health and Disease: Impact on Cellular Signalling. J Membrane Biol 252, 213–226 (2019). https://doi.org/10.1007/s00232-019-00087-0

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  • DOI: https://doi.org/10.1007/s00232-019-00087-0

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