Abstract
Alkaline conditions in the oral cavity may be caused by a variety of stimuli, including tobacco products, antacids, alkaline drinking water and bicarbonate toothpaste. However, the effects of an alkaline pH on the oral mucosa had not been elucidated. The purpose of this study was to investigate how basal keratinocytes are actively involved in re-epithelialization after alkaline chemical injury. We generated epithelial defects in the oral mucosa of mice by applying an alkaline chemical, and the localization of cytokeratin 13, cytokeratin 14, PCNA and p63 was investigated during the re-epithelialization process. PCNA- and p63-positive staining was seen in basal cells covering the wound surface at 1 day after the chemical injury. Cytokeratin 14-positive and PCNA-negative basal keratinocytes were localized in a few layers of the wound epithelium during epithelial outgrowth. Cytokeratin 14-positive and PCNA-positive basal keratinocytes, indicating proliferation, were localized over the entire layer of the epithelium at the wound margin. These results imply that basal keratinocytes at the wound margin migrate to the wound surface, provoke differentiation and keratinization during epithelial outgrowth and that epithelial cells are supplied from the wound margin to the epithelial outgrowth after alkaline chemical injury.
| Original language | English |
|---|---|
| Pages (from-to) | 195-201 |
| Number of pages | 7 |
| Journal | Acta Histochemica et Cytochemica |
| Volume | 47 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Pathology and Forensic Medicine
- Biochemistry
- Physiology
- Histology
- Cell Biology
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Re-epithelialization of the buccal mucosa after alkaline chemical injury. / Takaichi, Saneyuki; Muramatsu, Takashi; Lee, Jong Min; Jung, Han Sung; Shinozaki, Naoshi; Katakura, Akira; Yamane, Gen Yuki.
In: Acta Histochemica et Cytochemica, Vol. 47, No. 5, 01.01.2014, p. 195-201.Research output: Contribution to journal › Article
TY - JOUR
T1 - Re-epithelialization of the buccal mucosa after alkaline chemical injury
AU - Takaichi, Saneyuki
AU - Muramatsu, Takashi
AU - Lee, Jong Min
AU - Jung, Han Sung
AU - Shinozaki, Naoshi
AU - Katakura, Akira
AU - Yamane, Gen Yuki
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Alkaline conditions in the oral cavity may be caused by a variety of stimuli, including tobacco products, antacids, alkaline drinking water and bicarbonate toothpaste. However, the effects of an alkaline pH on the oral mucosa had not been elucidated. The purpose of this study was to investigate how basal keratinocytes are actively involved in re-epithelialization after alkaline chemical injury. We generated epithelial defects in the oral mucosa of mice by applying an alkaline chemical, and the localization of cytokeratin 13, cytokeratin 14, PCNA and p63 was investigated during the re-epithelialization process. PCNA- and p63-positive staining was seen in basal cells covering the wound surface at 1 day after the chemical injury. Cytokeratin 14-positive and PCNA-negative basal keratinocytes were localized in a few layers of the wound epithelium during epithelial outgrowth. Cytokeratin 14-positive and PCNA-positive basal keratinocytes, indicating proliferation, were localized over the entire layer of the epithelium at the wound margin. These results imply that basal keratinocytes at the wound margin migrate to the wound surface, provoke differentiation and keratinization during epithelial outgrowth and that epithelial cells are supplied from the wound margin to the epithelial outgrowth after alkaline chemical injury.
AB - Alkaline conditions in the oral cavity may be caused by a variety of stimuli, including tobacco products, antacids, alkaline drinking water and bicarbonate toothpaste. However, the effects of an alkaline pH on the oral mucosa had not been elucidated. The purpose of this study was to investigate how basal keratinocytes are actively involved in re-epithelialization after alkaline chemical injury. We generated epithelial defects in the oral mucosa of mice by applying an alkaline chemical, and the localization of cytokeratin 13, cytokeratin 14, PCNA and p63 was investigated during the re-epithelialization process. PCNA- and p63-positive staining was seen in basal cells covering the wound surface at 1 day after the chemical injury. Cytokeratin 14-positive and PCNA-negative basal keratinocytes were localized in a few layers of the wound epithelium during epithelial outgrowth. Cytokeratin 14-positive and PCNA-positive basal keratinocytes, indicating proliferation, were localized over the entire layer of the epithelium at the wound margin. These results imply that basal keratinocytes at the wound margin migrate to the wound surface, provoke differentiation and keratinization during epithelial outgrowth and that epithelial cells are supplied from the wound margin to the epithelial outgrowth after alkaline chemical injury.
UR - http://www.scopus.com/inward/record.url?scp=84908337704&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84908337704&partnerID=8YFLogxK
U2 - 10.1267/ahc.14015
DO - 10.1267/ahc.14015
M3 - Article
AN - SCOPUS:84908337704
VL - 47
SP - 195
EP - 201
JO - Acta Histochemica et Cytochemica
JF - Acta Histochemica et Cytochemica
SN - 0044-5991
IS - 5
ER -