Distribution of Collagen Type IV α1-6 Chains and MMP in Carcinogenesis in Oral Squamous Cell Carcinoma

Ryo Tamamura, Hitoshi Nagatsuka, You Jin Lee, Jing Xiao, Noriyuki Nagai, Ichiro Naito, Yoshikazu Sado, Toshiyuki Kawakami

Research output: Contribution to journalArticle

Abstract

Destruction of basement membrane is an important element in invasion of cancer cells. Type IV collagen, the major component of basement membrane, has six distinct a chains. Matrix metalloproteinases (MMPs) are enzymes that resolve extracellular matrix. Oral squamous cell carcinoma occurs through precancerous lesion epithelial dysplasia and carcinoma in situ. We investigated localization of six a chains and MMPs in normal oral mucosal tissue, precancerous lesions, early squamous cell carcinoma immunohistochemically. In normal oral mucosal tissue and epithelial dysplasia, α1 (IV), α2 (IV), α5 (IV) and α6 (IV) chains were detected continuously along basement membrane. In carcinoma in situ and early squamous cell carcinoma, either α5 (IV) and α6 (IV) chains or all a chains were not stained. In contrast, MMP-2 and MMP-9 that are members of type IV collagenase were stained at the parts of disappearance of a chains. This study suggested that the disappearance of a chains is an important element in carcinogenesis of oral squamous cell carcinoma.

Original languageEnglish
Pages (from-to)117-123
Number of pages7
JournalJournal of Hard Tissue Biology
Volume13
Issue number3
DOIs
Publication statusPublished - 2004

Fingerprint

Collagen Type IV
Collagen Type I
Matrix Metalloproteinases
Collagen
Squamous Cell Carcinoma
Carcinogenesis
Basement Membrane
Carcinoma in Situ
Mucous Membrane
Matrix Metalloproteinase 2
Matrix Metalloproteinase 9
Collagenases
Extracellular Matrix
Enzymes
Cells
Epithelial Cells
Metalloproteases
Neoplasms

Keywords

  • basement membrane
  • carcinogenesis
  • matrix metalloproteinase(MMP)
  • squamous cell carcinoma
  • type IV collagen

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Biochemistry
  • Biomaterials
  • Orthopedics and Sports Medicine
  • Dentistry(all)
  • Cell Biology

Cite this

Distribution of Collagen Type IV α1-6 Chains and MMP in Carcinogenesis in Oral Squamous Cell Carcinoma. / Tamamura, Ryo; Nagatsuka, Hitoshi; Lee, You Jin; Xiao, Jing; Nagai, Noriyuki; Naito, Ichiro; Sado, Yoshikazu; Kawakami, Toshiyuki.

In: Journal of Hard Tissue Biology, Vol. 13, No. 3, 2004, p. 117-123.

Research output: Contribution to journalArticle

Tamamura, Ryo ; Nagatsuka, Hitoshi ; Lee, You Jin ; Xiao, Jing ; Nagai, Noriyuki ; Naito, Ichiro ; Sado, Yoshikazu ; Kawakami, Toshiyuki. / Distribution of Collagen Type IV α1-6 Chains and MMP in Carcinogenesis in Oral Squamous Cell Carcinoma. In: Journal of Hard Tissue Biology. 2004 ; Vol. 13, No. 3. pp. 117-123.
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