• Asian Pacific Journal of Cancer Prevention
• /
• 제15권6호
• /
• pp.2591-2596
• /
• 2014

Purpose: To evaluate the prognostic value of the expression of excision repair cross-complementation group l (ERCC1), MutS protein homolog 2 (MSH2) and poly ADP-ribose polymerase 1 (PARP1) in non-small-cell lung cancer patients receiving platinum-based postoperative adjuvant chemotherapy. Methods: Immunohistochemistry was applied to detect the expression of ERCC1, MSH2 and PARP1 in 111 cases of non-small cell lung cancer paraffin embedded surgical specimens. Through og-rank survival analysis, we evaluated the prognostic value of the ERCC1, MSH2, PARP1 and the related clinicopathological factors. COX regression analysis was used to determine whether ERCC1, MSH2 and PARP1 were independent prognostic factors. Results: In the enrolled 111 non-small cell lung cancer patients, the positive expression rate of ERCC1, MSH2 and RARP1 was 33.3%, 36.9% and 55.9%, respectively. ERCC1 (P<0.001) and PARP1 (P=0.033) were found to be correlated with the survival time while there was no correlation for MSH2 (P=0.298). Patients with both ERCC1 and PARP1 negative cancer had significantly longer survival time than those with ERCC1 (P=0.042) or PARP1 (P=0.027) positive alone. Similalry, the survival time of patients with both ERCC1 and PARP1 positive cancer was shorter than those with ERCC1 (P=0.048) or PARP1 (P=0.01) positive alone. Conclusion: Patients with ERCC1 or PARP1 negative non-small cell lung cancer appear to benefit from platinum-based postoperative adjuvant chemotherapy.

• 대한약침학회지
• /
• 제21권4호
• /
• pp.268-276
• /
• 2018

Objectives: The purpose of this study is to investigate the anti-cancer effects of different fractions of Astragalus membranaceus (AM) in human non-small cell lung cancer (NSCLC) cells. Methods: We isolated hexane, ethyl acetate, and butanol fractions from crude ethanol extract of AM. The cell death was examined by MTT assay and trypan blue exclusion assay. Apoptosis was detected by DAPI staining, annexin V-PI double staining and cell cycle analysis. The expression of apoptosis-related proteins and mitogen-activated protein kinases (MAPKs) was examined by western blot. Results: Among various fractions of AM, the ethyl acetate fraction of AM (EAM) showed the strongest cytotoxic effect in NSCLC cells. EAM reduced the cell proliferation in a time- and dose-dependent manner in NSCLC cells. In addition, EAM induced the chromatin condensation, and increased the population of sub-G1 phase and annexin V-positive cells in a time-dependent manner, indicating that EAM induced apoptosis in NSCLC cells. Consistently, EAM enhanced the expression of cleaved caspase-8 and -9, and induced the accumulation of cleaved- poly (ADP-ribose) polymerase (PARP). Among MAPK proteins, only ERK was dephosphorylated by EAM, suggesting that ERK might be related with EAM-induced apoptosis. Conclusion: Our results clearly demonstrate that EAM exhibited anti-cancer effects in NSCLC cells by induction of apoptosis. We provide a valuable evidence which suggests that AM could be a desirable therapeutic option for treatment of NSCLC.

• Tuberculosis and Respiratory Diseases
• /
• 제47권3호
• /
• pp.339-346
• /
• 1999

배경: 비소세포폐암에서 비슷한 병기의 환자들도 생존 가망성은 상당한 차이를 보이는데 이러한 상황에서 보다 환자에게 효율적인 치료를 제공할 수 있게 도울 수 있는 새로운 예측인자의 필요성이 대두되었는데 보다 정확하고 재현성이 있는 폐암 병기 판정이 환자의 치료와 예후에 가장 큰 영향을 보인다고 생각된다. 비소세포폐암의 병기 판정은 1986년 Mountain 이 표명한 T(primary tumor), N(regional lymph nodes), M(distant metastasis) 시스템과 이에 각각의 병기를 따르고 있는데 이후 같은 병기내에서도 서로 다른 예후를 보이고 보다 세분화된 병기의 구분점이 있어야겠다는 공론속에서 1996년 American Joint Committee on Cancer과 Union Internationale Contre le Cancer에 의해 새로 개정된 비소세포 폐암의 병기 판정 시스템이 천명되었다. 본 연구에서는 비소세포폐암 환자에서 새로운 병기판정에 따른 생존율을 알아보고 이에 따라 술전, 술후 환자의 예후에 대한 의의를 알아 보기 위해 이 연구를 진행하였다. 방법: 연구 방법은 1981년부터 1995년까지 한양대학교 부속병원에서 비소세포폐암으로 진단된 환자중 술전에 방사선 또는 항암화학요법 치료를 받은 적이 없는 환자로서 치료적 목적으로 광범위 폐절제 및 림프절제술을 받은 환자중 사망여부의 추적이 가능한 총 84예의 환자를 대상으로 술후 얻어진 조직학적 병기를 과거의 병기판정과 새로운 TNM 병기를 기준으로 이의 생존의 관찰치와 더불어 병리조직학적 특정과 임상적 특징을 알아보았다. 결과: 환자의 median survival은 과거의 병기에 따른 결과는 stage I ; 79.1개월, stage II ; 47.3 개월, stage IIIa;22.77개월, stage IIIb; 16.1개월, stage IV;15.2개월이었고 새로운 병기에 따른 결과는 stage Ia;58.5개월, stage IIb;76.0개월, stage IIa;적용불능, stage IIIb;43.0개월, stage IIIa;22.5개월, stage IIIb;16.1개월, stage IV;15.2개월이었고 술후 36개월 뒤의 누적 백분율 생존율은 stage Ia;100%, stage Ib;80%, stage IIa; 적용불능, stage IIb;26%, stage IIIa;21%을 보였고 과거의 병기와 새로운 병기 판정에 따른 생존율에 따른 차이는 보이지 않았다. 결론: 폐암은 전세계적으로 암으로 인한 사망률 원인의 1위를 보이는 암종으로 비소세포폐암에서 비슷한 병기의 환자들도 생존 가망성은 상당한 차이를 보이는데 이러한 상황에서 보다 정확한 생존 가망성을 예측하고 각각의 환자에게 보다 효율적인 치료를 제공할 수 있게 도울 수 있는 새로운 예측 측도가 필요하게 되었다. 본 연구에서 결과는 통계학적으로 확연한 차이를 보이지 않았지만 새로 개정된 폐암 병기 판정 체계는 폐암 환자의 생존율을 높이고 비소세포폐암 환자의 예후를 보다 세분하여 정확하게 판정하는데 도움이 될 수 있으리라 사료되며 앞으로 보다 많은 추가적인 연구가 필요하다고 본다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권8호
• /
• pp.4801-4804
• /
• 2013

Purpose: To investigate short-term response rate, quality of life and toxicities of mannan peptide combined with TP regimen in treating patients with non-small cell lung cancer (NSCLC). Patients and Methods: Forty one patients with NSCLC were divided into an experimental group treated with TP regimen combined with mannan peptide (21 patients) and a control group treated with TP alone (20 patients). Results: Response rates were 61.9% (13/21) for the experimental and 60% (12/20) for the control group (p>0.05). Regarding toxicity, white blood cell decreased more frequently in the control group (65%, 13/20) than in the experimental group (33.3%, 7/21) (p<0.05); nausea and vomiting also occurred more frequently in the control group (55%, 11/20 vs 23.8%, 5/21) (p<0.05). In terms of quality of life, this index was improved by 57.1% (12/21) and 25% (5/20) in experimental and control groups, respectively (p<0.05). Conclusions: Response rate of TP after combined with mannan peptide is mildly increased, while this combination alleviates bone marrow suppression as well as nausea and vomiting of TP, and improves quality of life when treating patients with NSCLC. However, this conclusion should be confirmed by randomized clinical trails.

• Asian Pacific Journal of Cancer Prevention
• /
• 제13권4호
• /
• pp.1557-1561
• /
• 2012

Objective: To investigate the promoter methylation status of the E-cadherin gene in non-small cell lung cancer (NSCLC) and its association with clinical pathological parameters, and to explore the relationship between downregulation of E-cadherin gene expression and the methylation status of its promoter region. Methods: Nested methylation-specific PCR was performed to examine CpG methylation within the 5' CpG island of the E-cadherin gene in lung cancer and para-cancerous tissue from 37 patients with primary non-small cell lung cancer. Quantitative real-time PCR was performed to measure the level of E-cadherin mRNA. Results: Of thirty-seven cases, 12 (32.4%) samples showed aberrant CpG methylation in tumor tissues compared with the corresponding normal tissues. In addition, a reduction in E-cadherin mRNA levels was observed in 11 of the 12 (91.7%) tumor tissues carrying a methylated E-cadherin gene. However, only 10 (43.5%) cases displayed reduced mRNA levels in tumor tissues from the remaining 23 cases (excluding 2 samples from which mRNA was unavailable) without methylation events. Downregulation of E-cadherin gene expression significantly correlated with the promoter methylation status of this gene. Conclusion: These results provide strong evidence that the methylation status of E-cadherin gene contributes to a reduction in the expression of E-cadherin mRNA, and may play a role in the development and progression of NSCLC.

• 대한암한의학회지
• /
• 제17권1호
• /
• pp.45-53
• /
• 2012

Objective : We introduce a case of non-small cell lung cancer patient treated with allergen removed Rhus verniciflua Stokes. Methods : This patient started Allergen-removed Rhus Verniciflua Stokes from Feb 2010 right after his firstline chemotherapy, and maintained his Oriental medicine regimen until now. Results : It shows 12.0 months of progression-free-survival since starting point of maintenance chemotherapy, and 9.3 months of overall-survival since progression disease after 2nd chemotherapy, compared with 6.3 months of its known overall survival. Conclusion : Allergen removed Rhus verniciflua Stokes prolonged overall survival and slowed disease progression of a non-small cell lung cancer patient.

• 대한의생명과학회지
• /
• 제20권2호
• /
• pp.49-55
• /
• 2014

RalBP1 is an ATP-dependent non-ABC transporter, responsible for the major transport function in many cells including many cancer cell lines, causing efflux of glutathione-electrophile conjugates of both endogenous metabolites and environmental toxins. RalBP1 is expressed in most human tissues, and is over-expressed in non-small cell lung cancer cell lines and in many other tumor types. Blockade of RalBP1 by various approaches has been shown to increase sensitivity to radiation and chemotherapeutic drugs, leading to cell apoptosis. In xenograft tumor models in mice, RalBP1 blockade or depletion results in complete and sustained regression across many cancer cell types including lung cancer cells. In addition to its transport function, RalBP1 has many other cellular and physiological functions, based on its domain structure which includes a unique Ral-binding domain and a RhoGAP catalytic domain, as well as docking sites for multiple signaling proteins. Additionally, RalBP1 is also important for stromal cell function in tumors, as it was recently shown to be required for efficient endothelial cell function and angiogenesis in solid tumors. In this review, we discuss the cellular and physiological functions of RalBP1 in normal and lung cancer cells.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권1호
• /
• pp.201-204
• /
• 2015

Background: This study was designed to determine the accuracy of bronchoalveolar lavage fluid cytology (BAL) using histopathologic examination of transbronchial biopsy specimens as the gold standard in diagnosis of lung carcinoma at our center. Materials and Methods: A retrospective study was conducted to investigate a total of 388 patients who were suspected of having lung cancer and had undergone fiberoptic bronchoscopy in Shahid Sadoughi hospital from 2006 to 2011. Lung masses were proven to be malignant by histology. Results: Transbronchial lung biopsy (TBLB) identified malignancy in 183 of the 388 cases, including 48 cases (26.2%) with adenocarcinoma, 4(2.1%) with bronchioloalveolar carcinoma, 47(25.6%)with squamous cell carcinoma, 34(18.5%) with well-diffentiated neuroendocrine carcinoma, 35(19.1%) with small cell carcinoma, 14 (7.6%) with non-small cell carcinoma, and 1 (0.54%) with large cell carcinoma. A total of 205 cases were correctly classified as negative. BAL was also performed in 388 patients; 86/103 cases were consistent with the final diagnosis of lung cancer and 188/285 cases were correctly classified as negative. The sensitivity of BAL was 46.9%(CI:41.9%, 51.8%)) and its specificity was 91.6%(CI:88.8%, 94.3%). BAL had a positive predictive value (PPV) of 83.4%(CI:79.7%, 87.1%) and a negative predictive value (NPV) of 65.8%(CI:61%, 70.5%). The overall accuracy of BAL was 70.5% and the exact concordance was 39%. Conclusions: Our findings suggest that BAL cytology is not sensitive but is a specific test for diagnosis of lung carcinoma. If transbronchial lung biopsy is combined with bronchoalveolar lavage, the positive diagnostic rate will be further elevated.

• Journal of Korean Neurosurgical Society
• /
• 제53권1호
• /
• pp.43-45
• /
• 2013

"Tumor-to-tumor" metastasis is a rare event; meningioma has been reported as the most common primary intracranial tumor to harbor cancer metastases. Several hypotheses have been previously proposed to explain this occurrence, but the exact mechanism by which these metastases develop into meningiomas is not yet understood. Magnetic resonance imaging and spectroscopy have been valuable diagnostic tools, but preoperative diagnosis of metastasis to meningioma remains highly difficult. We present a case report of a metastasis of non-small cell lung cancer into an intracranial meningioma.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권3호
• /
• pp.1391-1396
• /
• 2014

Non-small cell lung cancer (NSCLC) is the most common type of lung cancer and the most common cause of lung cancer death. Currently, the epidermal growth factor receptor inhibitor gefitinib is used for its treatment; however, drug resistance is a major obstacle. Expression of Met has been associated with both primary and acquired resistance to gefitinib, but the mechanisms regulating its expression are not fully understood. Recently, miRNAs such as miR-130a have been shown to play a role in gefitinib resistance, but importance in NSCLC and relationships with Met have not been fully explored. Here we show that miR-130a is over-expressed in gefitinibsensitive NSCLC cell lines, but is low in gefitinib-resistant NSCLC cell lines. Moreover, miR-130a expression was negatively correlated with that of Met. Further analysis revealed that over-expression of miR-130a increased cell apoptosis and inhibited proliferation of NSCLC cells treated with gefitinib, whereas lowering the expression of miR-130a decreased cell apoptosis and promoted cell proliferation after treatment with gefitinib in both gefitinib-sensitive and -resistant NSCLC cell lines, suggesting that miR-130a overcomes gefitinib resistance. We also demonstrated that miR-130a binds to the 3'-UTR of Met and significantly suppresses its expression. Finally, our results showed that over-expressing Met could "rescue" the functions of miR-130a regarding cell apoptosis and proliferation after cells are treated with gefitinib. These findings indicate that the miR-130a/Met axis plays an important role in gefitinib resistance in NSCLC. Thus, the miR-130a/Met axis may be an effective therapeutic target in gefitinib-resistant lung cancer patients.