hAM-pe soluble extract increases human keratinocyte HaCaT cell-line mobility in scratch assays
- 1Instituto de Fisica de Liquidos y Sistemas Biologicos (IFLySiB-UNLP-CONICET)
Abstract
We have studied the impact of human amniotic membrane (hAM-pe) on wound closing speed in a scratch assay of human keratinocytes (HaCaT). Though not without limitations, scratch assays are useful for studying collective cellular displacement as a model of wound healing. We show that the treatment is effective in decreasing the average time that the cells need to completely close the wound, in agreement with previous \emph{in vivo} experiments. We developed an automated segmentation software, and verified that a linear fit, though not completely describing the wound edge dynamics, is a robust method for comparing treatments and control measurements. By tracking the individual motion of a subset of cells, we found that individual treatment does not cause an increase in individual speed enough to explain the effect of the treatment at the collective (wound edge) level. Instead, the mean squared displacement and numerical simulations of a simple model of interacting active Brownian particles support the view that the main effect of the treatment at the individual level is to increase the persistence of cellular motion.
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BibTeX
@misc{soprano2026hampe,
title = {{hAM-pe soluble extract increases human keratinocyte HaCaT cell-line mobility in scratch assays}},
author = {C. M. Soprano and M. X. Guerbi and F. M. Michelini and A. Berra and G. N. Moreno and T. S. Grigera},
howpublished = {bioRxiv},
year = {2026},
month = nov,
doi = {10.64898/2026.11.04.764050},
url = {https://www.biorxiv.org/content/10.64898/2026.11.04.764050v1},
note = {CC BY-NC-ND},
}
RIS
TY - UNPB
TI - hAM-pe soluble extract increases human keratinocyte HaCaT cell-line mobility in scratch assays
AU - C. M. Soprano
AU - M. X. Guerbi
AU - F. M. Michelini
AU - A. Berra
AU - G. N. Moreno
AU - T. S. Grigera
PY - 2026
DA - 2026/11/04
PB - bioRxiv
DO - 10.64898/2026.11.04.764050
UR - https://www.biorxiv.org/content/10.64898/2026.11.04.764050v1
AB - We have studied the impact of human amniotic membrane (hAM-pe) on wound closing speed in a scratch assay of human keratinocytes (HaCaT). Though not without limitations, scratch assays are useful for studying collective cellular displacement as a model of wound healing. We show that the treatment is effective in decreasing the average time that the cells need to completely close the wound, in agreement with previous \emph{in vivo} experiments. We developed an automated segmentation software, and verified that a linear fit, though not completely describing the wound edge dynamics, is a robust method for comparing treatments and control measurements. By tracking the individual motion of a subset of cells, we found that individual treatment does not cause an increase in individual speed enough to explain the effect of the treatment at the collective (wound edge) level. Instead, the mean squared displacement and numerical simulations of a simple model of interacting active Brownian particles support the view that the main effect of the treatment at the individual level is to increase the persistence of cellular motion.
ER -