What sort of lung cancer are you looking for? There are non-small cell lung cancers (NSCLC) as well as small cell lung cancer (SCLC), NSCLC includes adenocarcinomas, suamous cell carcinomas as well as a few additional NSCLC's. I added a link to the ATCC website for lung cancer and normal cell lines for all organisms, including mouse.
I found that Wi38 is a human lung fibroblast line, not from mouse. It is mentioned in the article you attached and also in the Sigma Aldrich website from where I wanted to get it.