Kim, Myung-Soo;Lee, Ji-Hae;Ha, Bo-Ram;Lee, Re-Na;Lee, Kyung-Ja;Suh, Hyun-Suk
Radiation Oncology Journal
/
v.29
no.3
/
pp.181-190
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2011
Purpose: Thoracic radiotherapy is a major treatment modality of stage III non-small cell lung cancer. The normal lung tissue is sensitive to radiation and radiation pneumonitis is the most important dose-limiting complication of thoracic radiation therapy. This study was performed to identify the clinical and dosimetric parameters related to the risk of radiation pneumonitis after definitive radiotherapy in stage III non-small cell cancer patients. Materials and Methods: The medical records were reviewed for 49 patients who completed definitive radiation therapy for locally advanced non-small cell lung cancer from August 2000 to February 2010. Radiation therapy was delivered with the daily dose of 1.8 Gy to 2.0 Gy and the total radiation dose ranged from 50.0 Gy to 70.2 Gy (median, 61.2 Gy). Elective nodal irradiation was delivered at a dose of 45.0 Gy to 50.0 Gy. Seven patients (14.3%) were treated with radiation therapy alone and forty two patients (85.7%) were treated with chemotherapy either sequentially or concurrently. Results: Twenty-five cases (51.0%) out of 49 cases experienced radiation pneumonitis. According to the radiation pneumonitis grade, 10 (20.4%) were grade 1, 9 (18.4%) were grade 2, 4 (8.2%) were grade 3, and 2 (4.1%) were grade 4. In the univariate analyses, no clinical factors including age, sex, performance status, smoking history, underlying lung disease, tumor location, total radiation dose and chemotherapy were associated with grade ${\geq}2$ radiation pneumonitis. In the subgroup analysis of the chemotherapy group, concurrent rather than sequential chemotherapy was significantly related to grade ${\geq}2$ radiation pneumonitis comparing sequential chemotherapy. In the univariate analysis with dosimetric factors, mean lung dose (MLD), $V_{20}$, $V_{30}$, $V_{40}$, MLDipsi, $V_{20}$ipsi, $V_{30}$ipsi, and $V_{40}$ipsi were associated with grade ${\geq}2$ radiation pneumonitis. In addition, multivariate analysis showed that MLD and V30 were independent predicting factors for grade ${\geq}2$ radiation pneumonitis. Conclusion: Concurrent chemotherapy, MLD and $V_{30}$ were statistically significant predictors of grade ${\geq}2$ radiation pneumonitis in patients with stage III non-small cell lung cancer undergoing definitive radiotherapy. The cutoff values for MLD and $V_{30}$ were 16 Gy and 18%, respectively.
Central Cancer Registry of Korean National Cancer Center in 1999 reported that mortality from lung cancer is higher than mortality from stomach cancer or hepatocellular carcinoma in Korean male. Lung cancer is classified into small cell cancer and non-small cell lung cancer (NSCLC), and NSCLC patients account for $70\%$ of the whole lung cancer patients. The purpose of this study was to evaluate the efficacy and toxicity of docetaxel and cisplatin combination in Korean patients with NSCLC. All patients who had received the combination therapy of docetaxel and cisplatin for histologically confirmed NSCLC in Ajou University Hospital between 2000. $2\~2001$. 4 were retrospectively evaluated for the responses and toxicities of that combination therapy. Nineteen patients were treated with docetaxel 75 $mg/m^2$ on Day 1 and cisplatin 25 $mg/m^2$ on Day 1-3 every 4 weeks. The response for combination regimen was evaluated by CT scans after 2 or 3 cycles of treatments. Seventeen patients were evaluated for the responses and the 19 patients far the toxicities. Among the 19 patients (14 men and 5 women), there were one patient $(5.3\%)$ with stage I disease, 4 patients $(21.1\%)$ with stage III disease, and 14 patients $(73.1\%)$ with stage IV disease. Of the 17 patients who were evaluable for response, complete response (CR) was not observed in any patient while partial response (PR) was observed in 5 patients $(29.4\%)$. The overall response rate (CR+PR) was $29.4\%$. Stable disease (SD) was observed in 11 patients $(64.7\%)$ and progressive disease (PD) in 1 patient $(5.9\%)$. The toxicities were graded by NCI (National Cancer Institute) Common Toxicity Criteria for the evaluable 70 cycles. Grade 3 or 4 neutropenia occurred in 53 cycles $(76\%)$. Four patients were hospitalized due to febrile neutropenia. The combination chemotherapy of docetaxel and cisplatin was effective as NSCLC treatments, however, the regimen must be administered carefully due to its hematological side effects.
Purpose: This study investigates the alterations in A549 human non-small-cell lung cancer (NSCLC) cells exposed to Citrus junos extract (CJE). We further examine the antiproliferative and apoptotic effects of CJE on NSCLC cells. Methods: Inhibition of proliferation was examined by applying the 3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium bromide (MTT) colorimetric assay on CJE-treated A549 NSCLC cells. The lactate dehydrogenase (LDH) assay was performed to measure the degree of toxicity of CJE on NSCLC cells. The effect on migratory proliferation was confirmed using the scratch wound healing assay. The antiproliferative effect of the CJE on human lung cancer cells was verified through morphological observation, fluorescence microscopy, and caspase-3 colorimetry. Results: Exposure of NSCLC cells to CJE resulted in a dose- and time-dependent decrease in cell activity and increased toxicity to the cells. In addition, microscopic observation revealed a reduced ability of the cancer cells to migrate and proliferate after exposure to the CJE, with simultaneous morphological apoptotic changes. Fluorescence staining and microscopic examination revealed that this death was a process of self-programmed cell death of NSCLC cells. Compared to unexposed NSCLC cells, the expression of caspase-3 was significantly increased in cells exposed to CJE. Conclusion: Exposure of A549 human NSCLC cells to CJE inhibits the proliferation, increases the cytotoxicity, and decreases the ability of cells to migrate and grow. Moreover, the expression of caspase-3 increases after CJE treatment, suggesting that the apoptosis of NSCLC cells is induced by a chain reaction initiated by caspase-3. These results indicate that Citrus junos is a potential therapeutic agent for human non-small-cell lung cancer.
Background: Small cell lung cancer (SCLC) tends to grow more rapidly and spread much faster than non-small cell lung cancer (NSCLC). A concurrent combination of chemotherapy and thoracic radiotherapy is suggested as the standard conventional treatment, but it is more challenging for elderly patients having pulmonary and cardiovascular comorbidities. Case presentation: Here we present a case of an 80-year-old male, current smoker diagnosed with SCLC in limited stage T3N0M0 (36mm right upper lobe, satellite nodule) in Dec, 2015. The standard concurrent chemoradiotherapy was not available for his comorbidities, which included chronic obstructive pulmonary disease (COPD) and angina pectoris. Furthermore, he and his family refused the recommended chemotherapy or radiotherapy exclusively. Alternatively, he received various non-conventional treatments including local radiofrequency hyperthermia, mistletoe, and Traditional Korean medicine including acupuncture, moxibustion and herbs since Jan. 2016. Despite the progression in primary tumor size, there have been no other distant relapse so far, and the patient has been in stable condition ever since. Conclusion: We suggest that a combination of various alternative treatments could be a candidate for elderly patients intolerable to conventional cytotoxic treatments.
Objective: To determine clinical efficacy, safety and prognostic factors of pemetrexed plus platinum as first-line treatment in patients with advanced non-small cell lung cancer (NSCLC). Materials and Methods: Clinical characteristics, short-term efficacy, survival and adverse reactions of 47 advanced non-squamous NSCLC patients who had received pemetrexed plus platinum as first-line treatment in Shanghai Pulmonary Hospital from January 2009 to June 2011 were retrospectively analyzed. The Chi-squared test was applied to statistically analyze the overall response rate (ORR), disease control rate (DCR) and toxicity reactions in both groups, while survival data wereanalyzed by Kaplan-Meier and logrank methods, and the COX proportional hazards model was adopted for a series of multi-factor analyses. Results: Only two patients were lost to follow-up. The ORR, DCR, medium progression-free survival time (PFS) and medium overall survival (OS) were 31.9%, 74.5%, 5 months and 15.2 months, while 1- and 2-year survival rates were 63.8% (30/47) and 19.2% (9/47), respectively. Single-factor analysis showed that tumor pathological patterns and efficacy were in association with medium PFS (P<0.05), whereas tumor pathological patterns, smoking history and efficacy were closely connected with medium OS (P<0.05). Multi-factor analyses demonstrated that pathological patterns and efficacy were independent factors influencing OS (P<0.05). The rate of toxicity reactions in degree III/IV was low, including hematologic toxicity marked by decline in white blood cell count and decrease in the platelet count (PLT), and non-hematologic toxicity manifested by gastrointestinal reactions, such as nausea and vomiting. Conclusions: Pemetrexed plus platinum as first-line treatment has excellent efficacy and slight adverse reactions with favorable drug-tolerance in patients with advanced non-squamous NSCLC.
Objective: To observe the clinical efficacy of bevacizumab concomitant with pemetrexed in patients with advanced non-small cell lung cancer (NSCLC). Materials and Methods: A total of 72 patients were randomly divided into a combination group (pemetrexed+bevacizumab, n=36) and a pemetrexed group (n=36) and assessed for disease control (CR+PR+SD) after 4-cycles of first-line GP chemotherapy (gemcitabine+cisplatin). Clinical efficacy, progression-free survival time (PFS), overall survival time (OS), overall response rate (ORR), disease control rate (DCR) and rate of adverse responses between two groups were observed and compared. Results: ORR and DCR were 27.8% and 83.4% in combination group, and 16.7% and 69.5% in the pemetrexed group, respectively, but there were no significant differences (P>0.05). PFS in combination group and pemetrexed group were 4.6 months and 3.9 months respectively (P=0.09), whereas OS in the combination group was 14 months, evidently higher than in the pemetrexed group (11 months, P=0.004). Adverse responses in both groups included high blood pressure, bleeding, thrombocytopenia, anemia, elevated transaminase, diarrhea, vomiting and proteinuria, but there were no significant differences (P>0.05). Conclusions: Bevacizumab concomitant with pemetrexed has better clinical efficacy and safety, giving rise to prolonged survival time in patients with advanced NSCLC.
Microsatellites are short tandem repeated nucleotide sequences that are present throughout the human genome. Variations in the repeat number or a loss of heterozygosity around the microsatellites have been termed a microsatellite alteration (MA). A MA reflects the genetic instability caused by an impairment in the DNA mismatch repair system and is suggested to be a novel tumorigenic mechanism. A number of studies have reported that MA in the DNA extracted from the plasma occurs at varying frequencies among patients with a non-small cell lung carcinoma (NSCLC). The genomic DNA from 9 subjects with a non-small cell lung cancer (squamous cell cancer 6, adenocarcinoma 2, non-small cell lung cancer1) and 9 age matched non-cancer control subjects (AMC: tuberculosis 3, other inflammatory lung disease 6) and 12 normal control subjects (NC) were extracted from the peripheral blood leukocytes and plasma. Three microsatellite loci were amplified with the primers targeting the Gene Bank sequence D21S1245, D3S1300, and D3S1234. MA in the form of an allelic loss or a band shift was examined with 6% polyacrylamide gel electrophoresis and silver staining. None (0/12) of the NC subjects less than 40 years of age showed a MA in any of the three markers, while 88.9%(8/9) of the AMC above 40 showed a MA in at least one of the three markers (p<0.05). Sixty percent(6/10) of the control subjects with a smoking history showed a MA in one of the three markers, while 9.1%(1/11) of the control subjects without smoking history showed a MA (p<0.05). However, not only did 66.7%(6/9) of lung cancer patients show a MA in at least one of the three markers but so did 88.9%(8/21) of the AMC patients (p>0.05). In conclusion, a MA in the D21S1245, D3S1300, and D3S1234 loci using DNA extracted from the plasma was detected in 66.7% of lung cancer while no MA was found in the young non-smoking control subjects. However, many of the non-cancer control subjects (aged smokers) also showed a MA, which compromised the specificity of the MA analysis as a screening test. Therefore, a further study with a larger sample size will be needed.
Kim, Byeong-Cheol;Moon, Doo-Seop;Yoon, Su-Mi;Yang, Seok-Chul;Yoon, Ho-Yoo;Shin, Dong-Ho;Park, Sung-Soo;Lee, Jung-Hee
Tuberculosis and Respiratory Diseases
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v.47
no.3
/
pp.339-346
/
1999
Background : Non-small cell lung carcinoma is a common tumor with a poor prognosis. Of all malignancies, it is the main cause of death for male and female patients in the Western world. Resection remains the most effective treatment when feasible. Accurate description and classification of the extent of cancer growth are important in planning treatment, estimating prognosis, evaluating end results of therapy, and exchanging information on human cancer research. Until effective systemic therapy is available for non-small cell lung cancer, development of new treatment strategies depends on knowledge of the end results achieved for carefully staged groups of patients in the lung cancer populations. For these reasons, we investigated the survival rate in radically resected non-small cell lung cancer patients by newly revised staging system adopted by the American Joint Committee on Cancer and the Union Internationale Contre le Cancer. Methods: Clinical, surgical-pathologic and follow-up informations on 84 consecutive, previously untreated, patients who received their primary treatment for non-small cell lung cancer were investigated. Staging definitions for the T(primary tumor), N(reginal lymph node), and M(distant metastasis) components were according to the International Staging System for Lung Cancer. Death from any causes was the primary target of the evaluation. Results: The median survival rates were as follows; stage I ;79.1 months, stage II ;47.3 months, stage IIIa; 22.7 months, stage IIIb; 16.1 months, and stage IV;15.2 months versus newly revised stage Ia;58.5 months, stage I b;76.0 months, stage IIa; not available, stage IIb;43.0 months, stage IIIa;22.5 months, stage IIIb; 16.1 months, and stage IV;15.2 months. The survival rates were not significantly different between old and newly revised staging system. Cumulative percent survival at 36months after treatment was 100% in stage Ia, 80% in stage Ib, not available in stage IIa, 26 % in stage IIb, and 21 % in stage m a respectively. Conclusions: Although these data were not significantly different statistically, the newly revised lung cancer staging system might be more promising for the accurate evaluation of the prognosis in the non-small cell lung caner patients.
Kim, Hyun-Joong;Kim, Hong-Gi;Kim, Jin-Young;Kam, Cheol-Woo;Park, Dong-Il
Journal of Physiology & Pathology in Korean Medicine
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v.22
no.3
/
pp.630-641
/
2008
Gamisamgibopae-tang (GMSGBPT) is a traditional Korean medicine, which has been used for patients suffering from a lung disease in Oriental medicine. In the present study, we examined the biochemical mechanisms of apoptosis by GMSGBPT in NCI-H460 and A549 human non-small-cell lung cancer cell lines. It was found that GMSGBPT could inhibit the cell proliferation of A549 cells in a concentration-dependent manner, however GMSGBPT did not affect the cell proliferation of NCI-H460 cells. Apoptotic cell death in A549 cells were detected using DAPI staining and annexin V fluorescein methods. The induction of apoptotic cell death by GMSGBPT was connected with a down-regulation of anti-apoptotic Bcl-2 and Bcl-xL expression, and proteolytic activation of caspase-3 and caspase-9 in A549 cells. However, GMSGBPT did not affect the levels of pro-apoptotic Bax and Bad expression, and activity of caspase-8. GMSGBPT treatment also concomitant degradation and/or inhibition of poly (ADP-ribose) polymerase (PARP), ${\beta}$-catenin, phospholipase C-1 (PLC${\gamma}$1) and DNA fragmentation factor 45/inhibitor of caspase-activated DNase (DFF45/ICAD). Taken together, these findings suggest that GMSGBPT may be a potential chemotherapeutic agent for the control of human non-small-cell lung cancer cells and further studies will be needed to identify the active compounds that confer the anti-cancer activity of GMSGBPT.
Background:The aim of the research was to explore a cost effective, fast, easy to perform, and sensitive method for epidermal growth factor receptor (EGFR) mutation testing. Methods: High resolution melting analysis (HRM) was introduced to evaluate the efficacy of the analysis for dectecting EGFR mutations in exons 18 to 21 using formalin-fixed paraffin-embedded (FFPE) tissues and plasma free DNA from 120 patients. Results: The total EGFR mutation rate was 37.5% (45/120) detected by direct sequencing. There were 48 mutations in 120 FFPE tissues assessed by HRM. For plasma free DNA, the EGFR mutation rate was 25.8% (31/120). The sensitivity of HRM assays in FFPE samples was 100% by HRM. There was a low false-positive mutation rate but a high false-negative rate in plasma free DNA detected by HRM. Conclusions: Our results show that HRM analysis has the advantage of small tumor sample need. HRM applied with plasma free DNA showed a high false-negative rate but a low false-positive rate. Further research into appropriate methods and analysis needs to be performed before HRM for plasma free DNA could be accepted as an option in diagnostic or screening settings.
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