Intratracheal instillation of bone marrow-derived cell in an experimental model of silicosis

Roberta M. Lassance, Luiz Felipe M. Prota, Tatiana Maron-Gutierrez, Cristiane S.N.B. Garcia, Soraia C. Abreu, Caroline P. Pássaro, Debora G. Xisto, Raquel C. Castiglione, Humberto Carreira, Debora Santos Ornellas, Maria Cristina E. Santana, Sergio A.L. Souza, Bianca Gutfilen, Lea Miriam B. Fonseca, Patricia R.M. Rocco, Marcelo M. Morales

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

The time course of lung mechanics, histology, and inflammatory and fibrogenic mediators are analysed after intratracheal instillation (IT) of bone marrow-derived cells (BMDC) in a model of silicosis. C57BL/6 mice were randomly divided into SIL (silica, 20 mg IT) and control (CTRL) groups (saline IT). At day 15, mice received saline or BMDC (2 × 106 cells) IT. The biodistribution of technetium-99m BMDC was higher in lungs compared with other organs. At days 30 and 60, lung mechanics, the area of granulomatous nodules, and mRNA expression of IL-1β and TGF-β were higher in SIL than CTRL animals. BMDC minimized changes in lung mechanics, the area of granulomatous nodules, and total cell infiltration at day 30, but these effects were no longer observed at day 60. Conversely, BMDC avoided the expression of IL-1β at days 30 and 60 and TGF-β only at day 30. In conclusion, BMDC therapy improved lung mechanics and histology, but this beneficial effect was not maintained in the course of injury.

Original languageEnglish (US)
Pages (from-to)227-233
Number of pages7
JournalRespiratory Physiology and Neurobiology
Volume169
Issue number3
DOIs
StatePublished - Dec 31 2009
Externally publishedYes

Keywords

  • Bone marrow-derived cells
  • Morphometry
  • Pulmonary mechanics
  • Silicosis

ASJC Scopus subject areas

  • Neuroscience(all)
  • Physiology
  • Pulmonary and Respiratory Medicine

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  • Cite this

    Lassance, R. M., Prota, L. F. M., Maron-Gutierrez, T., Garcia, C. S. N. B., Abreu, S. C., Pássaro, C. P., Xisto, D. G., Castiglione, R. C., Carreira, H., Ornellas, D. S., Santana, M. C. E., Souza, S. A. L., Gutfilen, B., Fonseca, L. M. B., Rocco, P. R. M., & Morales, M. M. (2009). Intratracheal instillation of bone marrow-derived cell in an experimental model of silicosis. Respiratory Physiology and Neurobiology, 169(3), 227-233. https://doi.org/10.1016/j.resp.2009.09.004