Intraarticular injection of hyaluronan (hyaluronic acid; HA) is the common way to treat osteoarthritis (OA) of knees. This treatment cannot only maintain the viscoelastic properties of knee but also release the OA pain. However, the exact molecular mechanism is unknown. In this study, after human sy
Transforming growth factor(TGF)-β1 induces leukemic cell-growth-promoting activity in fibroblast cells.
✍ Scribed by K. Komatsu; H. Nakamura; H. Akedo
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 362 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1065-6995
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✦ Synopsis
Abstract
The production of the leukemic cell‐growth‐promoting factor (LGF) in TGF‐β1‐treated fibroblast cells was studied. BALB/c3T3 mouse fibroblast(3T3) cells cultured in Eagle's medium containing a low concentration of TGF‐β1 (0.04‐1 ng/ml) secreted 3‐5 times more LGF than the cells cultured in the absence of TGF‐β1. The amount of LGF secretion was dose‐dependent on the concentration of post‐cultured medium and time‐dependent after the addition of TGF‐β1. Similar findings were obtained in human diploid fibroblasts, WI‐38 cells. LGF is a 18KD glycoprotein that is acid‐stable but heat‐unstable.
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