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Effects of TGF-β on Hyaluronan Anabolism in Fibroblasts Derived from the Synovial Membrane of the Rabbit Temporomandibular Joint
K. Tanimoto*,
A. Suzuki,
S. Ohno,
K. Honda,
N. Tanaka,
T. Doi,
K. Yoneno,
M. Ohno-Nakahara,
Y. Nakatani,
M. Ueki and
K. Tanne
Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan;

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Figure 1. Amounts of hyaluronan (HA) in synovial membrane fibroblast cultures treated with and without transforming growth factor beta 1 (TGF-β1) measured by means of high-performance liquid chromatography and differential refractometer. (A) < 300 kDa HA in the conditioned medium (mean ± SD, n = 3). (B) < 300 kDa HA in the cell layer (mean ± SD, n = 3). (C) 300 ~ 1900 kDa HA in the conditioned medium (mean ± SD, n = 3). (D) 300 ~ 1900 kDa HA in the cell layer (mean ± SD, n = 3). (E) > 1900 kDa HA in the conditioned medium (mean ± SD, n = 3). (F) > 1900 kDa HA in the cell layer (mean ± SD, n = 3). The amount of HA with TGF-β1 treatment for 12 to 72 hrs was compared with the non-treatment control by Students t test. *p < 0.05, **p < 0.01.
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Figure 2. Hyaluronan synthases (HASs) mRNA levels in synovial membrane fibroblast cultures treated with and without transforming growth factor beta 1 (TGF-β1) determined by a real-time polymerase chain-reaction analysis (PCR). (A) Dose-dependent effects of TGF-β1 on HAS2 mRNA levels (mean ± SD, n = 3). (B) Time-dependent effects of TGF-β1 on HAS2 mRNA levels (mean ± SD, n = 3). (C) Dose-dependent effects of TGF-β1 on HAS3 mRNA levels (mean ± SD, n = 3). (D) Time-dependent effects of TGF-β1 on HAS3 mRNA level (mean ± SD, n = 3). Data were normalized relative to the expression of glyceraldehyde 3-phosphate dehydrogenase (G3PDH) and shown as a fold increase in mRNA expression. The dotted line indicates the control level of HAS mRNAs. Fold increases in the expression of HASs mRNAs by TGF-β1 treatment were compared with the control levels dose- (0.1 ~ 100 ng/mL) and time- (1 ~ 12 hrs) dependently by Students t test. *p < 0.05, **p < 0.01.
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Journal of Dental Research, Vol. 83, No. 1,
40-44 (2004)
DOI: 10.1177/154405910408300108

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