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http://dx.doi.org/10.5090/kjtcs.2010.43.4.394

The Correlation between TGF-beta 1 Blood Levels and the Formation of Bullae in Patients with Spontaneous Pneumothorax  

Kim, Young-Sam (Department of Thoracic and Cardiovascular Surgery, Inha Univercity Hospital)
Kim, Kwang-Ho (Department of Thoracic and Cardiovascular Surgery, College of Medicine, Inha University)
Baek, Wan-Ki (Department of Thoracic and Cardiovascular Surgery, College of Medicine, Inha University)
Kim, Joung-Taek (Department of Thoracic and Cardiovascular Surgery, College of Medicine, Inha University)
Cha, Il-Kyu (Department of Life Science, Handong Global University)
Kim, Ji-Hye (Department of Thoracic and Cardiovascular Surgery, College of Medicine, Inha University)
Song, Sun-U (Clinical Research Center, Inha University Hospital)
Choi, Mi-Sook (Clinical Research Center, Inha University Hospital)
Publication Information
Journal of Chest Surgery / v.43, no.4, 2010 , pp. 394-398 More about this Journal
Abstract
Background: The overexpression of transforming growth factor-beta 1 receptor II (TGF-${\beta}1$RII) and transforming growth factor-beta 1 (TGF-${\beta}1$) ligand may be involved in the formation of a bulla. In this study, we tested if serum TGF-${\beta}1$ ligand levels correlated with the expression level of TGF-${\beta}1$RII and TGF-${\beta}1$ in bullous tissues from patients with spontaneous pneumothorax. Material and Method: Bullous lung tissues and blood samples were obtained from 19 patients with spontaneous pneumothorax, 18 males and 1 female, aged 17 to 35 years old. The bullous tissues were obtained by video-assisted thoracic surgery (VATS), fixed in formalin, embedded in paraffin, and cut into $5{\sim}6{\mu}m$ thick slices. Sections were immunohistochemically stained with primary antibodies against TGF-${\beta}1$ or TGF-${\beta}1$RII, and serum levels of TGF-${\beta}1$ in patients and normal controls was measured by enzyme-linked immunosorbent assay (ELISA). Result: Of the 19 patients, 16 were TGF-${\beta}1$ positive and 10 were TGF-${\beta}1$RII positive. Among the 16 TGF-${\beta}1$ positives, 9 were also TGF-${\beta}1RII$ positive. As seen previously, strong immunohistochemical staining of TGF-${\beta}1$RII and TGF-${\beta}$ was detected in the boundary region between the bullous and normal lung tissues. Average TGF-${\beta}1$ blood levels of both TGF-${\beta}1$ and TGF-${\beta}1$RII positive patients was $38.36{\pm}16.2ng/mL$, and that of five controls was $54.06{\pm}15ng/mL$. Conclusion: These results suggest that overexpression of TGF-${\beta}1$ and TGF-${\beta}1$RII expression may be involved in the formation of bullae. TGF-${\beta}1$ blood levels in patients with primary spontaneous pneumothorax is lower than normal people, suggesting that the high level of local TGF-${\beta}1$ expression in the bullous tissue region, but not in the whole blood, may contribute more in the formation of bullae.
Keywords
Growth factor; Bulla; Pneumothorax;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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