Cells/colony Motion of Oral Keratinocytes Determined by Non-invasive and Quantitative Measurement Using Optical Flow Predicts Epithelial Regenerative Capacity

Overview

Journal Sci Rep

Specialty Science

Date 2021 May 18

PMID 34001929

Citations 4

Authors

Emi Hoshikawa

Taisuke Sato

Kenta Haga

Ayako Suzuki

Ryota Kobayashi

Koichi Tabeta

Kenji Izumi

Affiliations

Soon will be listed here.

Abstract

Cells/colony motion determined by non-invasive, quantitative measurements using the optical flow (OF) algorithm can indicate the oral keratinocyte proliferative capacity in early-phase primary cultures. This study aimed to determine a threshold for the cells/colony motion index to detect substandard cell populations in a subsequent subculture before manufacturing a tissue-engineered oral mucosa graft and to investigate the correlation with the epithelial regenerative capacity. The distinctive proliferating pattern of first-passage [passage 1 (p1)] cells reveals the motion of p1 cells/colonies, which can be measured in a non-invasive, quantitative manner using OF with fewer full-screen imaging analyses and cell segmentations. Our results demonstrate that the motion index lower than 40 μm/h reflects cellular damages by experimental metabolic challenges although this value shall only apply in case of our culture system. Nonetheless, the motion index can be used as the threshold to determine the quality of cultured cells while it may be affected by any different culture conditions. Because the p1 cells/colony motion index is correlated with epithelial regenerative capacity, it is a reliable index for quality control of oral keratinocytes.

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