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논문 기본 정보

자료유형
학술저널
저자정보
Soo Nam Kim (안전성평가연구소) Jinsoo Lee (안전성평가연구소) Hyo-Seon Yang (안전성평가연구소) Jae-Woo Cho (안전성평가연구소) Soonjin Kwon (안전성평가연구소) Young-Beom Kim (안전성평가연구소) Jeong-Doo Her (안전성평가연구소) Kyu-Hyuk Cho (안전성평가연구소) Chang-Woo Song (안전성평가연구소) Kyuhong Lee (안전성평가연구소)
저널정보
한국독성학회 Toxicological Research Toxicological Research Vol.26 No.3
발행연도
2010.9
수록면
217 - 222 (6page)

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Many studies have reported that bleomycin, anti-cancer drug, induces pulmonary fibrosis as a side effect. However, few investigations have focused on the dose-response effects of bleomycin on pulmonary fibrosis. Therefore, in the present study, we investigated the effects of different doses of bleomycin in male mice. ICR mice were given 3 consecutive doses of bleomycin: 1, 2, or 4 ㎎/㎏ in bleomycin-treated (BT) groups and saline only in vehicle control (VC) groups. The animals were sacrificed at 7 and 24 days postinstillation. The severity of pulmonary fibrosis was evaluated according to inflammatory cell count and lactate dehydrogenase (LDH) activity in the broncho alveolar lavage fluid (BALF), and lung tissues were histologically evaluated after hematoxylin and eosin (H&E), and Masson’s trichrome staining. BT groups exhibited changed cellular profiles in BAL fluid compared to the VC group, which had an increased number of total cells, neutrophils, and lymphocytes and a modest increase in the number of macrophages at 7 days post-bleomycin instillation. Moreover, BT groups showed a dose-dependent increase in LDH levels and inflammatory cell counts. However, at 24 days after treatment, collagen deposition, interstitial thickening, and granulomatous lesions were observed in the alveolar spaces in addition to a decrease in inflammatory cells. These results indicate that pulmonary fibrosis induced by 4 ㎎/㎏ bleomycin was more severe than that induced by 1 or 2 ㎎/㎏. These data will be utilized in experimental animal models and as basic data to evaluate therapeutic candidates through non-invasive monitoring using the pulmonary fibrosis mouse model established in this study.

목차

INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
ACKNOWLEDGMENTS
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2010-513-002817546