RBL-2H3 Mast Cell Receptor Dynamics in the Immunological Synapse

The RBL-2H3 mast cell immunological synapse dynamics is often simulated with reaction–diffusion and Fokker–Planck equations. The equations focus on how the cell synapse captures receptors following an immune response, where the receptor capture at the immunological site appears to be a delayed proce...

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Main Authors: Ming Chih Tsai, Kathrin Spendier
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Biophysica
Subjects:
Online Access:https://www.mdpi.com/2673-4125/2/4/38
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author Ming Chih Tsai
Kathrin Spendier
author_facet Ming Chih Tsai
Kathrin Spendier
author_sort Ming Chih Tsai
collection DOAJ
description The RBL-2H3 mast cell immunological synapse dynamics is often simulated with reaction–diffusion and Fokker–Planck equations. The equations focus on how the cell synapse captures receptors following an immune response, where the receptor capture at the immunological site appears to be a delayed process. This article investigates the physical nature and mathematics behind such time-dependent delays. Using signal processing methods, convolution and cross-correlation-type delay capture simulations give a χ-squared range of 22 to 60, in good agreement with experimental results. The cell polarization event is offered as a possible explanation for these capture delays, where polarizing rates measure how fast the cell polarization event occurs. In the case of RBL-2H3 mast cells, polarization appears to be associated with cytoskeletal rearrangement; thus, both cytoskeletal and diffusional components are considered. From these simulations, a maximum polarizing rate ranging from 0.0057 s<sup>−2</sup> to 0.031 s<sup>−2</sup> is obtained. These results indicate that RBL-2H3 mast cells possess both temporal and spatial memory, and cell polarization is possibly linked to a Turing-type pattern formation.
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spelling doaj.art-e2bda44367744084902caa998c5028b52023-11-24T13:35:36ZengMDPI AGBiophysica2673-41252022-11-012442843910.3390/biophysica2040038RBL-2H3 Mast Cell Receptor Dynamics in the Immunological SynapseMing Chih Tsai0Kathrin Spendier1Department of Physics and Energy Science, University of Colorado Colorado Springs, Colorado Springs, CO 80918, USABioFrontiers Center, University of Colorado Colorado Springs, Colorado Springs, CO 80918, USAThe RBL-2H3 mast cell immunological synapse dynamics is often simulated with reaction–diffusion and Fokker–Planck equations. The equations focus on how the cell synapse captures receptors following an immune response, where the receptor capture at the immunological site appears to be a delayed process. This article investigates the physical nature and mathematics behind such time-dependent delays. Using signal processing methods, convolution and cross-correlation-type delay capture simulations give a χ-squared range of 22 to 60, in good agreement with experimental results. The cell polarization event is offered as a possible explanation for these capture delays, where polarizing rates measure how fast the cell polarization event occurs. In the case of RBL-2H3 mast cells, polarization appears to be associated with cytoskeletal rearrangement; thus, both cytoskeletal and diffusional components are considered. From these simulations, a maximum polarizing rate ranging from 0.0057 s<sup>−2</sup> to 0.031 s<sup>−2</sup> is obtained. These results indicate that RBL-2H3 mast cells possess both temporal and spatial memory, and cell polarization is possibly linked to a Turing-type pattern formation.https://www.mdpi.com/2673-4125/2/4/38mast cellimmunological synapseconvolutioncross-correlationpolarizationcell memory
spellingShingle Ming Chih Tsai
Kathrin Spendier
RBL-2H3 Mast Cell Receptor Dynamics in the Immunological Synapse
Biophysica
mast cell
immunological synapse
convolution
cross-correlation
polarization
cell memory
title RBL-2H3 Mast Cell Receptor Dynamics in the Immunological Synapse
title_full RBL-2H3 Mast Cell Receptor Dynamics in the Immunological Synapse
title_fullStr RBL-2H3 Mast Cell Receptor Dynamics in the Immunological Synapse
title_full_unstemmed RBL-2H3 Mast Cell Receptor Dynamics in the Immunological Synapse
title_short RBL-2H3 Mast Cell Receptor Dynamics in the Immunological Synapse
title_sort rbl 2h3 mast cell receptor dynamics in the immunological synapse
topic mast cell
immunological synapse
convolution
cross-correlation
polarization
cell memory
url https://www.mdpi.com/2673-4125/2/4/38
work_keys_str_mv AT mingchihtsai rbl2h3mastcellreceptordynamicsintheimmunologicalsynapse
AT kathrinspendier rbl2h3mastcellreceptordynamicsintheimmunologicalsynapse