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Expression of Bcl-2 predicts outcome in locally advanced non-small cell lung cancer patients treated with cisplatin-based concurrent chemoradiotherapy.

Jeong, SH; Jung, JH; Han, JH; Kim, JH; Choi, YW; Lee, HW; Kang, SY; Hwang, YH; Ahn, MS; Choi, JH; Oh, YT; Chun, M; Kang, S; Park, KJ; Hwang, SC; Sheen, SS
Lung cancer (Amsterdam, Netherlands), 68(2):288-294, 2010
Journal Title
Lung cancer (Amsterdam, Netherlands)
BACKGROUND: Platinum-based concurrent chemoradiotherapy (CCRT) is a standard treatment for locally advanced unresectable non-small cell lung cancer (NSCLC). The determination of parameters that may predict the result of the treatment has strong clinical implications.

PATIENTS AND METHODS: Pretreatment tumor biopsy specimens from 39 patients with locally advanced NSCLC (stage IIIA: 5, stage IIIB: 34) were analyzed for p53, Bcl-2, Bax and ERCC1 expression by immunohistochemistry. All patients were treated with cisplatin-based CCRT. Twenty-four patients received induction chemotherapy followed by CCRT (60Gy/30 fractions, 6mg/m(2) of cisplatin daily). The most commonly administered induction chemotherapy regimen was VIP (etoposide, ifosfamide, cisplatin; 20 patients). Fifteen patients received the same CCRT without induction chemotherapy.

RESULTS: High expression of p53, Bcl-2, Bax and ERCC1 was observed in 15 (38%), 19 (49%), 17 (44%) and 12 (31%) patients, respectively. High expression of Bcl-2 was significantly associated with longer survival duration (20 months vs. 9 months, P=0.008) and better response to the treatment (74% vs. 30%, P=0.01). In multivariate analysis, Bcl-2 expression was the only significant independent prognostic factor of overall survival (P=0.007) among the pretreatment patients characteristics.

CONCLUSIONS: High expression of Bcl-2 may be a useful prognostic factor in locally advanced NSCLC patients treated with cisplatin-based CCRT.
MeSH terms
AdultAgedAntineoplastic Agents/*administration & dosage/adverse effectsCarcinoma, Non-Small-CellCisplatin/*administration & dosage/adverse effectsDNA-Binding Proteins/genetics/metabolismDisease ProgressionEndonucleases/genetics/metabolismFemaleHumansLung Neoplasms/*diagnosis/mortality/pathology/physiopathology/therapyMaleMiddle AgedPrognosisProto-Oncogene Proteins c-bcl-2/genetics/*metabolismRadiotherapy, AdjuvantTreatment OutcomeTumor Suppressor Protein p53/genetics/metabolismbcl-2-Associated X Protein/genetics/metabolism
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Hematology-Oncology
Journal Papers > School of Medicine / Graduate School of Medicine > Pathology
Journal Papers > School of Medicine / Graduate School of Medicine > Radiation Oncology
Journal Papers > School of Medicine / Graduate School of Medicine > Pulmonary & Critical Care Medicine
Journal Papers > School of Medicine / Graduate School of Medicine > Medical Science
AJOU Authors
정, 성현한, 재호김, 장희이, 현우강, 석윤최, 진혁오, 영택전, 미선박, 광주황, 성철신, 승수
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