JaLCDOI 10.18926/AMO/56649
フルテキストURL 73_2_135.pdf
著者 Maeba, Takahiro| Yonezawa, Tomoko| Ono, Mitsuaki| Tomono, Yasuko| Heljasvaara, Ritva| Pihlajaniemi, Taina| Inagawa, Kiichi| Oohashi, Toshitaka|
抄録 The basement membrane (BM) is composed of various extracellular molecules and regulates tissue regeneration and maintenance. Here, we demonstrate that collagen XVIII was spatiotemporally expressed in the BM during skin wound healing in a mouse excisional wound-splinting model. Re-epithelialization was detected at days 3 and 6 post-wounding. The ultrastructure of epidermal BM was discontinuous at day 3, whereas on day 6 a continuous BM was observed in the region proximal to the wound edge. Immunohistochemistry demonstrated that collagen XVIII was deposited in the BM zone beneath newly forming epidermis in day 3 and 6 wounds. Laminin-332, known to be the earliest BM component appearing in wounds, was colocalized with collagen XVIII in the epidermal BM zone at days 3 and 6. The deposition of α1(IV) collagen and nidogen-1 in the epidermal BM zone occurred later than that of collagen XVIII. We also observed the short isoform of collagen XVIII in the epidermal BM zone at day 3 post-wounding. Collectively, our results suggested that collagen XVIII plays a role in the formation of the dermal-epidermal junction during re-epithelialization, and that it is the short isoform that is involved in the early phase of re-epithelialization.
キーワード collagen XVIII basement membrane wound healing re-epithelialization skin
Amo Type Original Article
発行日 2019-04
出版物タイトル Acta Medica Okayama
73巻
2号
出版者 Okayama University Medical School
開始ページ 135
終了ページ 146
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2019 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 31015748