title: Proliferating activity, DNA ploidy changes of lung cancer cells before and after chemotherapy.
abstract: To assess proliferating activity, DNA ploidy changes of lung cancer cells before and after chemotherapy, we performed a flow cytometry analysis (FC) using fresh bronchoscopy specimens from 38 patients with lung cancer. Among 33 males and 5 females, squamous cell carcinoma (NSLC) was recognized in 12 males, 15 males had small cell lung cancer (SCLC) and 6 males had lung cancer with no histological type (LC) defined. Three women had SCLC, 1 had NSCLC and one had LC. Control consisted of 11 COPD patients. The percentage of diploid cells was significantly lower and cells with hypoploid cells were significantly higher in study group before treatment. High percentage of G2M cells characterised NSCLC and LC groups, whether high number of S phase cells characterised NSCLC and SCLC group before treatment. The treatment lowered percentage of G2M cells in NSCLC and CA group, whether diploid, hypoploid and S phase cells did not differ than those from before treatment.
authors.affiliation: Department of Pneumology, Medical Academy, Bialystok, Poland. robmroz@poczta.onet.pl
authors.forename: R M
authors.initials: RM
authors.lastname: Mroz
authors.forename: E
authors.initials: E
authors.lastname: Chyczewska
authors.forename: A
authors.initials: A
authors.lastname: Holownia
authors.forename: T
authors.initials: T
authors.lastname: Izycki
authors.forename: L
authors.initials: L
authors.lastname: Chyczewski
authors.forename: J J
authors.initials: JJ
authors.lastname: Braszko
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D018288:Carcinoma, Small Cell / Q000188:drug therapy / Q000473:pathology; D002455:Cell Division; D005260:Female; D005434:Flow Cytometry; D016193:G1 Phase; D016195:G2 Phase; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D018307:Neoplasms, Squamous Cell / Q000188:drug therapy* / Q000473:pathology*; D011003:Ploidies; D016192:Resting Phase, Cell Cycle; D016196:S Phase