細胞描述
C-myc DNA sequences are not amplified.No gross structural DNA abnormalities were detected.This is a cell line that grows as large aggregates in suspension. Only the aggregates are viable, but no meaningful viability percentage can be measured. The medium will normally contain large amounts of cell debris.The cells express an aberrant form of RB1 that is not phosphorylated, apparently due to a single point mutation at codon 706(Cys-> Phe).The line is a classic SCLC cell line which expresses elevated levels of four biochemical markers(neuron specific enolase, brain isoenzyme of creatine kinase, L-DOPA decarboxylase and bombesin-like immunoreactivity.The line produces normal amounts of p53 mRNA relative to normal lung.