[Biphasic Pulmonary Blastoma without Recurrence for Six Years After Surgery:Report of a Case].

A 62-year-old man was referred to our hospital for a lung tumor. Computed tomography (CT) of the chest showed a 62×55×68 mm well-circumscribed tumor in the upper lobe of the right lung. A transbronchial lung biopsy was performed, but a diagnosis was not achieved.

TGF-beta and glutathione promote tissue repair in cigarette smoke induced injury.

We studied the effect of cigarette smoke extract (CSE) on a three-dimensional (3-D) co-culture model with epithelial cells and mesenchymal cells to clarify how epithelial cells protect lung tissue from cigarette smoke in-vivo. Two types of gels were prepared. The one was the co-culture of human fetal lung fibroblasts (HFL-I) embedded in type-I collagen gel, with alveolar epithelial cells (A549) cultured covering the top of the gel.