In-vivo lung tissue-injury/repair models Female BRE-eGFP animals, between 12-16 weeks of age were treated with naphthalene or bleomycin. For naphthalene treatment, 300 mg/kg naphthalene in corn oil (vehicle) or vehicle alone was administered by intra-peritoneal injection. Lung tissues were collected on days 2, 3, 6, 9 post naphthalene-treatment. For bleomycin treatment, bleomycin (0.033 Units/mouse, Nippon Kayaku co ltd, Bleocin) diluted in PBS or PBS alone (vehicle) was administered intra-tracheally in 30 ml total volume. Lungs were collected on days 2, 4 and 12 post-bleomycin-treatment.