• Tuberculosis and Respiratory Diseases
• /
• 제70권2호
• /
• pp.160-164
• /
• 2011

Paraneoplastic neurologic syndrome is a group of assorted disorders resulting from damage to the nervous system in cancer, remote from primary site, and not related to metastasis, infection, or metabolic disorder associated with cancer. Patient with small cell lung cancer sometimes shows various neurological syndromes, but patient with non-small cell lung cancer rarely shows neurologic syndromes and few antineuronal antibodies have been found. Here, we report a case of 53-year-old male patient who developed ptosis and extraocular muscular limitation of left eye due to third and forth cranial nerve palsy in non-small cell lung cancer without brain metastasis. These neurologic symptoms improved after lobectomy without any other treatment immunotherapy.

• 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.

• 대한의생명과학회지
• /
• 제28권4호
• /
• pp.247-259
• /
• 2022

Immunotherapy, which uses an immune mechanism in the body, has received considerable attention for cancer treatment. Suberoylanilide hydroxamic acid (SAHA), also known as a histone deacetylase inhibitor (HDACi), is used as a cancer treatment to induce active immunity by increasing the expression of T cell-induced chemokines. However, this SAHA treatment has the disadvantage of causing PD-L1 overexpression in tumor cells. In this study, we prevented PD-L1 overexpression by blocking the PD-1/PD-L1 pathway using PD-L1 siRNA. We designed two types of liposomes, the neutral lipid 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholin (POPC) for SAHA, and 1,2-dioleoyl-3-trimethylammoniumpropane (DOTAP) for siRNA. To effectively target PD-L1 in cancer cells, we conjugated PD-L1 antibody with liposomes containing SAHA or PD-L1 siRNA. These immunoliposomes were also evaluated for cytotoxicity, gene silencing, and T-cell-induced chemokine expression in human non-small cell lung cancer A549 cells. It was confirmed that the combination of the two immunoliposomes increased the cancer cell suppression efficacy through Jurkat T cell induction more than twice compared to SAHA alone treatment. In conclusion, this combination of immunoliposomes containing a drug and nucleic acid has promising therapeutic potential for non-small-cell lung carcinoma (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
• /
• 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.

• Nutrition Research and Practice
• /
• 제14권2호
• /
• pp.127-133
• /
• 2020

BACKGROUND/OBJECTIVES: Non-small cell lung cancer is mostly recognized among other types of lung cancer with a poor prognosis by cause of chemotherapeutic resistance and increased metastasis. Luteolin has been found to decrease cell metastasis. However, its underlying mechanisms remain unresolved. The objective of this study was to examine the effect (and its mechanism) of luteolin on the migration and invasion of human non-small cell lung cancer A549 cells. MATERIALS/METHODS: Cell viability was investigated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Wound healing and transwell assays were evaluated to assess migration and invasion, respectively. Western blot analysis and immunofluorescence were further performed to investigate the role of luteolin and its mechanisms of action. RESULTS: Administration with up to 40 μM luteolin showed no cytotoxic activity on lung cancer A549 cells or non-cancer MRC-5 cells. Additionally, luteolin at 20-40 μM significantly suppressed A549 cells' migration, invasion, and the formation of filopodia in a concentration-dependent manner at 24 h. This is similar with western blot analysis, which revealed diminished the phosphorylated focal adhesion kinase (pFAK), phosphorylated non-receptor tyrosine kinase (pSrc), Ras-related C3 botulinum toxin substrate 1 (Rac1), cell division control protein 42 (Cdc42), and Ras homolog gene family member A (RhoA) expression levels. CONCLUSIONS: Overall, our data indicate that luteolin plays a role in controlling lung cancer cells' migration and invasion via Src/FAK and its downstream Rac1, Cdc42, and RhoA pathways. Luteolin might be considered a promising candidate for suppressing invasion and metastasis of lung cancer cells.

• 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.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권8호
• /
• pp.4819-4822
• /
• 2013

Background: Lung cancer is the leading cause of cancer mortality in the world. Many factors can protect against or facilitate its development. A TNF family member TRAIL, has a complex physiological role beyond that of merely activating the apoptotic pathway in cancer cells. Vitamin D is converted to its active form locally in the lung, and is also thought to play an important role in lung health. Our goal was to investigate the possible clinical significance of serum sTRAIL and 1,25-dihydroxyvitamin D(3) levels in patients with non-small cell lung cancer (NSCLC). Materials and Methods: Totals of 18 consecutive adenocarcinoma and 22 squamous cell carcinoma patients with stage-IV non-small cell lung cancer referred to our institute were included in this study. There were 12 men and 6 women, with ages ranging from 38 to 97 (mean 60.5) years with adenocarcinoma, and 20 men and 2 women, with ages ranging from 46 to 80 (mean 65) years with squamous cell carcinoma. Serum levels of sTRAIL and 1,25-dihydroxyvitamin D(3) were measured in all samples at the time of diagnosis. Results: sTRAIL levels in NSCLC patients were higher than in the control group. Although there was no correlation between patient survival and sTRAIL levels, the highest sTRAIL levels were correlated with age and cigarette smoking in the adenocarcinoma patients. sTRAIL level in healthy individuals were correlated with serum 1,25-dihydroxyvitamin D(3). Conclusions: Serum sTRAIL concentrations were increased in NSCLC patients, and correlated with age and smoking history, but not with overall survival.

• 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.

• Tuberculosis and Respiratory Diseases
• /
• 제48권3호
• /
• pp.324-330
• /
• 2000

연구배경 : IGFs는 다양한 종양세포에서 세포분열 및 성장에 관여하는 것으로 알려진 펩티드로써 폐암 조직에서 IGF-1에 대한 항체를 이용하여 면역조직화학염색을 실시하여 폐암세포에서 이의 발현 및 조직학적 형태에 따라 발현의 정도를 비교해 보고자 하였다. 방 법 : 15명의 소세포성 폐암 환자와 42명의 비소세포성 폐암 환자를 대상으로 IGF-1에 대한 면역조직화학적 염색을 실시하였다. 결 과 : 모든 폐암 조직애서 IGF-1의 발현을 보였고 비소세포성 폐암조직은 소세포성 폐암조직보다 IGF-1에 대한 발현의 정도가 유의하게 증가되어 있었다. 결 론 : 폐암세포는 IGF-1의 발현을 보이며 이에 대한 면역조직화학염색은 폐암세포의 조직학적 형태를 감별하는데 도움을 줄 수 있다.