Type XVI collagen is expressed in factor XIIIa+ monocyte-derived dermal dendrocytes and constitutes a potential substrate for factor XIIIa

被引:24
作者
Akagi, A
Tajima, S
Ishibashi, A
Matsubara, Y
Takehana, M
Kobayashi, S
Yamaguchi, N
机构
[1] Natl Def Med Coll, Dept Dermatol, Tokorozawa, Saitama 3598513, Japan
[2] Kyoritsu Coll Pharmaceut Sci, Dept Physiol & Anat, Tokyo, Japan
[3] Tokyo Med & Dent Univ, Med Res Inst, Dept Mol Pathogenesis, Tokyo, Japan
关键词
collagen XVI; cross-linking; dendrocyte; factor XIIIa; monocyte;
D O I
10.1046/j.0022-202x.2001.01666.x
中图分类号
R75 [皮肤病学与性病学];
学科分类号
100206 ;
摘要
We have previously reported that connective tissue cells in the superficial dermis preferentially express alpha(1)(XVI) collagen rather than those in the lower dermis. Double immunofluorescence labeling using the antibodies for alpha(1)(XVI) collagen and factor XIIIa (plasma transglutaminase), which is a marker of dermal dendrocytes, demonstrated that both antibodies reacted with the same cells in the superficial dermis of normal skin as well as the lesional skins of dermal dendrocyte-related disorders, dermatofibroma, and psoriasis. Dermal dendrocytes are considered to be established by a culture of peripheral blood monocytes in the presence of granulocyte macrophage-colony stimulating factor and interleukin-4. Reverse transcription-polymerase chain reaction, metabolic labeling, and immunofluorescence studies demonstrated that treatment of CD14(+) peripheral blood monocytes with granulocyte macrophage-colony stimulating factor/interleukin-4 over a period of 8 d resulted in the induction of alpha(1)(XVI) collagen as well as factor XIIIa. The physiologic significance of colocalization of alpha(1)(XVI) collagen and factor XIIIa in the tissue and their coordinate induction in CD14(+) monocyte-derived dendritic cells in vitro was studied. Considerable incorporation of [H-3]putrescine by factor XIIIa into recombinant noncollagenous domain (NC) 11 but not into collagenous domain (COL) 1.NC1 domain of the alpha(1)(XVI) polypeptide was found. Incubation of recombinant NC11 of alpha(1)(XVI) polypeptide with factor XIIIa in vitro produced a covalent cross-linking complex on sodium dodecylsulfate-polyacrylamide gel electrophoresis. The results indicate that alpha(1)(XVI) collagen is constitutively expressed by most dermal dendrocytes in the skin and dendritic cells differentiated from peripheral blood monocytes in vitro. Type XVI collagen is expressed in factor XIIIa(+) dermal dendrocytes and may form an intermolecular cross-linking through NC11 domain by the reaction catalyzed by factor XIIIa contributing to the structural integrity of factor XIIIa(+) dendritic cell-rich tissues.
引用
收藏
页码:267 / 274
页数:8
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