The establishment and characterization of 11 human lung cancer cell li
nes are described in this article. Nine of these cell lines were estab
lished over a 5-year period, from 1983 to 1988, from patients treated
at the Kingston Regional Cancer Centre. These include eight definite o
r probable small cell lung cancer (SCLC) lines and one adenocarcinoma
line. In addition, two other SCLC cell lines were characterized. All o
f the lines have been in continuous culture for more than 2 years. The
clinical histories of the patients from whom the cell lines were deri
ved are outlined here. Several features of the cell lines are presente
d, including the following: (1) a comparison of the histologic feature
s of the cell lines with the original biopsy specimens; (2) the expres
sion of various markers, including cytokeratin, carcinoembryonic antig
en, calcitonin, and neuron-specific enolase; (3) activities of the enz
ymes 1-dopa decarboxylase and the brain isoenzyme of creatine kinase;
(4) growth characteristics; (5) cloning efficiency in soft agar; (6) t
umorigenicity in nude mice; and (7) cytogenetic studies. These cell li
nes, obtained directly from patients with a spectrum of drug-sensitive
and drug-resistant tumors, will be valuable in vitro models of sensit
ivity and resistance to chemotherapy in lung cancer.