• Korean Journal of Acupuncture
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• v.17 no.1
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• pp.1-10
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• 2000

Gamdutang aqua-acupuncture solution(GAS) and Gamdutang water-extracted solution(GWS) were prepared and tested for potential antitumor activites. It was shown to possess considerable toxicity toward various tumor cell lines. Concentration of $5{\times}\;and\;10{\times}$ of GAS resulted in more than 70% inhibition of growth in Ehrlich ascites tumor cells(EATC), hepa1c1c7 and A549. GAS at the concentration of $10{\times}\;and\;5{\times}$ revealed that more than 60% inhibition in HeLa. GWS showed more than 50% in hibition of growth with EATC, HeLa at the concentration of $5{\times}\;and\;10{\times}$. Toxicity assay with GWS in hepa1c1c7 and A549 revealed that more than 80% inhibition in growth at the concentration of $5{\times}\;and\;10{\times}$. In morphological study, the number of cells were decreased, and the shape of cells was round-form. Most of cells in detached in EATC, Hepa1c1c7, HeLa, and A549 with GAS. These results suggest that GAS has antitumor activity in vitro.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.1
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• pp.161-166
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• 2014

Lung cancer is the most common causes of cancer-related deaths worldwide, and a lack of effective methods for early diagnosis has greatly impacted the prognosis and survival rates of the affected patients. Tumor-initiating cells (TICs) are considered to be largely responsible for tumor genesis, resistance to tumor therapy, metastasis, and recurrence. In addition to representing a good potential treatment target, TICs can provide clues for the early diagnosis of cancer. MicroRNA (miRNA) alterations are known to be involved in the initiation and progression of human cancer, and the detection of related miRNAs in TICs is an important strategy for lung cancer early diagnosis. As Hsa-miR-155 (miR-155) can be used as a diagnostic marker for non-small cell lung cancer (NSCLC), a smart molecular beacon of miR-155 was designed to image the expression of miR-155 in NSCLC cases. TICs expressing CD133 and CD338 were obtained from A549 cells by applying an immune magnetic bead isolation system, and miR-155 was detected using laser-scanning confocal microscopy. We found that intracellular miR-155 could be successfully detected using smart miR-155 molecular beacons. Expression was higher in TICs than in A549 cells, indicating that miR-155 may play an important role in regulating bio-behavior of TICs. As a non-invasive approach, molecular beacons could be implemented with molecular imaging to diagnose lung cancer at early stages.

• The Journal of Korean Medicine
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• v.17 no.1 s.31
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• pp.111-131
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• 1996

For the development of antimetastatic agent 41 kinds of crude drugs were used for the evaluation of inhibitory effect of several crude drugs on cell adhesion of pulmonary cancer cells and platelet aggregation. Results were obtained as follows: 1. Water extracts of crude drugs inhibited cell adhesion of A549 to complex extracelluar matrix over 40 % of contol were Houttuyniae Herba, Mylabris, Rhei Radix et Rhizoma, Meliae Cortex, Ferula Resina, Oldenlandiae diffusae Herba at the higher concentration of $10^{-3}g／ml$ while those inhibiting cell adhesion of Bl6-Fo over 40 % of control were $10^{-5}g／ml$ of Houttuyniae Herba, Aurantii Fructus, Lithospermi Radix, Zedoariae Rhizoma. Prunellae Spica, Foeniculi Fructus, Rbei Radix, Scutellariae Radix, Meliae Cortex, Ferula Resina and Oldenlandiae diffusae Herba. 2. MeOH extracts of crude drugs at the concentration of $4{\times}10^{-4}g／ml$ inhibiting cell adhesion of A549 specifically to single extracelluar matrix over 40 % of control were Lithospermi Radix, Agrimoniae Herba, Rhei Radix and Ferula Resina to collagen I, Houttuyniae Herba, Lithospermi Radix, Bupleuri Radix, Salviae miltiorrhizae Radix, Orostachys Herba, Sappan Lignum, Meliae cortex ferula Resina and Coicis Semen to collagen Ⅳ, Mylabris, Agrimoniae Herba to laminin, Houttuyniae Herba and Meliae Cortex to fibronectin. 3. NeOH extracts of crude drugs at the concentration of $4{\times}10^{-4}g／ml$ inhibiting cell adhesion of B16-Fo specifically to single extracelluar matrix over 60 % of control were Lithospermi Radix, Salviae miltiorrhizae Radix, Meliae Cortex and Ferula Resina to collagen I, Lithospermi Radix, Bupleun Radix, Saiviae miltiorrhizae Radix, Ferula Resina and Acanthopanacis Cortex to collagen Ⅳ, Bupleuri Radix, Orostachys Herba to laminin, Houttuyniae Herba to fibronectin. 4. MeOH extracts of crude drugs inhibiting platelet aggregation over 40% of ADP control were at the concentration of $50{\mu}g/m{\ell}$ of Houttuyniae Herba, Angilicae gigantis Radix, Zedoariae Rhizoma. Coicis Semen and $100{\mu}g/m{\ell}$ of Ferula Resina, Orostachys Herba, Salviae miltiorrhizae Radix, Curcumac Radix, Carthami Flos, Lithospermi Radix, Gleditsiae Spina, Sappan Lignum, Acanthopanacis Cortex. These results suggest that several crude drugs including Ferula Resina, Houttuyniae Herba, Lithospermi Radix and Salviae miltiorrhizae Radix chiefly have more possibility to exert antimetastatic activity and require in vivo antimetastatic study.

• Journal of Microbiology and Biotechnology
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• v.14 no.6
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• pp.1176-1181
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• 2004

The cytotoxic activities of Cinnamomum cassia (Blume) bark-derived materials toward six human HeLa epithelioid cervix, A549 lung, SK-OV-3 ovarian, SK-MEL-2 melanoma, XF-498 central nerve system, and HCT-15 colon tumor cell lines were evaluated by using sulforhodamine B assay and compared to those of the anticancer agents, cisplatin and mitomycin C. The biologically active constituent of the Cinnamomum bark was characterized as trans­cinnamaldehyde by spectroscopic analysis. The cytotoxic activity of cinnamaldehyde against HeLa, SK-MEL-2, and HCT -15 cell lines was comparable to that of cisplatin and mitomycin C. The compound showed lower activity against A549, SK-OV-3, and XF-498 cell lines than the anticancer agents. Eugenol exhibited moderate activity against SK-OV­3, XF-498, and HCT-15 tumor cells, and trans-cinnamic acid, cinnamyl alcohol, $\alpha-pinene,\;and\;\beta-pinene$ showed little or no activity against model tumor cells. Cinnamaldehyde was not mutagenic against four strains (TA 98, TA 100, TA 1535, and TA 1537) of Salmonella typhimurium (Castel and Chalm). These results indicate at least one pharmacological action of C. cassia.

• Journal of Microbiology and Biotechnology
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• v.31 no.7
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• pp.921-932
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• 2021

LINC01272 is a long non-coding RNA (lncRNA) that has been considered as a biomarker for many diseases including lung squamous cell carcinoma. Here, we investigated the function and mechanism of LINC01272 on lung cancer (LC). The differential expression of LINC01272 in LC and normal samples was analyzed by GEPIA based on the data from TCGA-LUAD database, as survival prognosis was analyzed through Kaplan-Meier Plotter. LINC01272 overexpression plasmid and miR-7-5p mimic were transfected into A549 and PC-9 cells. LINC01272, miR-7-5p and cardiolipin synthase 1 (CRLS1) mRNA expression was measured by quantitative reverse transcription-polymerase chain reaction. Cell viability was detected through MTT assay. Cell multiplication was evaluated by cell formation assay. Cell apoptosis was assessed through flow cytometry assay. Through bioinformatics, the target miRNA of LINC01272 and downstream genes of miR-7-5p were predicted. The targeting relationship was tested by dual luciferase reporter analysis. CRLS1, B-cell lymphoma-2 (Bcl-2), BCL2-associated X (Bax) and cleaved caspase-3 protein levels were detected through western blot. LINC01272 was downregulated in LC and low LINC01272 expression had poor prognosis. In A549 and PC-9 cells, LINC01272 inhibited cell viability and multiplication and induced apoptosis. LINC01272 negatively regulated miR-7-5p and CRLS1 was a target of miR-7-5p. MiR-7-5p reversed the effect of LINC01272 on viability, multiplication, apoptosis and expression of miR-7-5p and CRLS1 as well as apoptosis-related factors (Bcl-2, Bax and cleaved caspase-3). LINC01272 suppressed cell multiplication and induced apoptosis via regulating the miR-7-5p/CRLS1 axis in LC.

• Proceedings of the PSK Conference
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• 2003.04a
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• pp.272.1-272.1
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• 2003

Cornis fructus were extracted by successive extraction and then fractionated with hexane extract to get active fractions. This study was performed to determine the cytotoxic effect of hexane extract from Cornis fructus on NIH 3T3 fibroblasts and cancer cell lines using MTT assay. Hexane extract showed cytotoxic effect against A549, B16 melanoma and MDA-MB-231. Further fractionation with hexane extract were performed to obtain effective fraction, fraction 3 showed the cytotoxic effect against A549 and MDA-MB-231 cell line.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.291.2-291.2
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• 2002

For the safety evaluation of adenovirus-mediated gene therapy. we have investigated gene and protein expression after transduction of adenoviral vector (Ad5CMV-p16) which contains tumor suppressor gene. p161NK4$\alpha$ in human non-small cell lung cancer (A549) cells. We compared the differential gene expression level in the A549 cells treated with Ad5CMV (null type) and Ad5CMV-p16 virus. respectively. by using cDNA membrane chip and oligonucleotide chip. (omitted)

• Korean Journal of Acupuncture
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• v.25 no.1
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• pp.131-138
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• 2008

목적 : 본 연구의 목적은 폐열해수, 장열번갈, 습열사리, 황달, 옹종정창등의 치료효능이 있는 연교약침액이 사람 기관지 상피세포주인 A549에 TNF-${\alpha}$ 및 IL-4를 투여하여 나타나는 케모카인의 발현에 미치는 영향을 관찰하고자 하는 것이다. 방법 : A549 세포주에 연교약침액을 농도별로 (0, 0.5, 1, 5, 10, 50 ${\mu}g/ml$) 전처치한 후, TNF-${\alpha}$ 및 IL-4를 투여하여 RANTES, eotaxin 및 TARC의 분비를 유도하고, 케모카인 분비량을 ELISA법을 이용하여 측정하였다. 실험에 사용한 연교약침액의 농도에 따른 세포 독성 유무를 관찰하고자 MTT assay를 수행하여 세포생존율을 측정하였다.결과 : 연교약침액의 농도가 세포내에서 독성을 일으키는지 MTT assay로 측정한 결과 세포독성은 관찰되지 않았으며, 연교약침액은 TNF-${\alpha}$ 및 IL-4투여로 인하여 증가된 RANTES, eotaxin 및 TARC의 분비를 통계학적으로 유의하게 감소시킴을 관찰하였다. 결론 : 연교약침액은 천식과 알레르기 질환에 관련이 있는 케모카인의 효과적인 감소를 이끌어 냄을 확인하였으며, 이러한 결과는 연교약침액이 천식 및 알레르기 환자에 대해 효과적인 임상 활용이 가능할 것으로 사료된다.

• Journal of the Korean Society of Tobacco Science
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• v.32 no.1
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• pp.19-27
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• 2010

The aim of this study is to compare the sensitivity of both two NCI-H292 and A549 cell types to acute inflammatory responses induced by cigarette smoke. For this, we treated two kinds of smoke fractions derived from 2R4F reference cigarettes: total particulate matter(TPM) collected onto a Cambridge filter pad and gas/vapor phase(GVP) prepared by bubbling through in buffer solution. When we measured cellular cytotoxicity by neutral red uptake assay after treatment for 24 hours, TPM and GVP induced cytotoxic effect in a dose-dependent manner in the range of 10-$100{\mu}g$/mL and 60-$300 {\mu}g$/mL., respectively, in both cell types without any cellular difference. Additionally, when we examined acute inflammatory responses by analyzing cytokines secreted into culture media including tumor necrosis factor-$\alpha$ (TNF-$\alpha$), interleukin-8(IL-8), and transforming growth factor-$\alpha$(TGF-$\alpha$) as well as matrix metalloproteinase-1(MMP-1), the treatment with smoke fractions increased those marker proteins in a dose-dependent manner in NCI-H292. Meanwhile, in A549 cells only MMP-1 was observed to be increased in a dose-dependent fashion. Collectively, our data indicate that NCI-H292 cell type is more sensitive to cigarette smoke-induced inflammatory response than A549 cells. This suggests that NCI-H292 could be useful as an in vitro evaluation tool to assess harmful effects of cigarette smoke.

• Journal of Physiology & Pathology in Korean Medicine
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• v.17 no.2
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• pp.451-456
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• 2003

We investigated the effects of Sabaek-san (SBS) water extract on the growth of human lung carcinoma A549 cells. Upon treatment with SBS extract, a concentration-dependent inhibition of cell viability was observed and cells developed many of the hallmark features of apoptosis. including condensation of chromatin. Flow cytometry analysis confirmed that SBS treatment increased populations of apoptotic-sub G1 phase. In addition. proteolytic cleavages of poly(ADP-ribose) polymerase and β-catenin protein were observed after treatment of SBS extract. These apoptotic effects of SBS in A549 cells were associated with marked inhibition of Bcl-2 and Bel-xL mRNA in a dose-dependent manner. however the levels of Bax expression were not affected, SBS treatment also induced a proteolytic activation of caspase-3. which is believed to play a central role In the apoptotic signaling pathway. The previous and present results indicated that SBS-induced inhibition of lung cancer cell proliferation is associated with the blockage of G1/S progression and the induction of apoptosis.