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Tseng HC, Kuo CY, Liao WT, Chou TS, Hsiao JK. Indocyanine green as a near-infrared theranostic agent for ferroptosis and apoptosis-based, photothermal, and photodynamic cancer therapy. Front Mol Biosci 2022; 9:1045885. [PMID: 36567945 PMCID: PMC9768228 DOI: 10.3389/fmolb.2022.1045885] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Abstract
Ferroptosis is a recently discovered programmed cell death pathway initiated by reactive oxygen species (ROS). Cancer cells can escape ferroptosis, and strategies to promote cancer treatment are crucial. Indocyanine green (ICG) is a near-infrared (NIR) fluorescent molecule used in the imaging of residual tumor removal during surgery. Growing attention has been paid to the anticancer potential of ICG-NIR irradiation by inducing ROS production and theranostic effects. Organic anion transmembrane polypeptide (OATP) 1B3 is responsible for ICG metabolism. Additionally, the overexpression of OATP1B3 has been reported in several cancers. However, whether ICG combined with NIR exposure can cause ferroptosis remains unknown and the concept of treating OATP1B3-expressing cells with ICG-NIR irradiation has not been validated. We then used ICG as a theranostic molecule and an OATP1B3-transfected fibrosarcoma cell line, HT-1080 (HT-1080-OATP1B3), as a cell model. The HT-1080-OATP1B3 cell could promote the uptake of ICG into the cytoplasm. We observed that the HT-1080-OATP1B3 cells treated with ICG and exposed to 808-nm laser irradiation underwent apoptosis, as indicated by a reduction in mitochondrial membrane potential, and upregulation of cleaved Caspase-3 and Bax but downregulation of Bcl-2 expression. Moreover, lipid ROS production and consequent ferroptosis and hyperthermic effect were noted after ICG and laser administration. Finally, in vivo study findings also revealed that ICG with 808-nm laser irradiation has a significant effect on cancer suppression. ICG is a theranostic molecule that exerts synchronous apoptosis, ferroptosis, and hyperthermia effects and thus can be used in cancer treatment. Our findings may facilitate the development of treatment modalities for chemo-resistant cancers.
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Affiliation(s)
- Hsiang-Ching Tseng
- Department of Medical Imaging, Taipei Tzu Chi General Hospital, Buddhist Tzu-Chi Medical Foundation, New Taipei City, Taiwan,Department of Research, Taipei Tzu Chi General Hospital, Buddhist Tzu-Chi Medical Foundation, New Taipei City, Taiwan
| | - Chan-Yen Kuo
- Department of Research, Taipei Tzu Chi General Hospital, Buddhist Tzu-Chi Medical Foundation, New Taipei City, Taiwan
| | - Wei-Ting Liao
- Department of Research, Taipei Tzu Chi General Hospital, Buddhist Tzu-Chi Medical Foundation, New Taipei City, Taiwan
| | - Te-Sen Chou
- Department of Medical Imaging, Taipei Tzu Chi General Hospital, Buddhist Tzu-Chi Medical Foundation, New Taipei City, Taiwan,Department of Research, Taipei Tzu Chi General Hospital, Buddhist Tzu-Chi Medical Foundation, New Taipei City, Taiwan
| | - Jong-Kai Hsiao
- Department of Medical Imaging, Taipei Tzu Chi General Hospital, Buddhist Tzu-Chi Medical Foundation, New Taipei City, Taiwan,School of Medicine, Tzu Chi University, Hualien, Taiwan,*Correspondence: Jong-Kai Hsiao,
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Pan PK, Wang KT, Nan FH, Wu TM, Wu YS. Red Algae “Sarcodia suieae” Acetyl-Xylogalactan Downregulate Heat-Induced Macrophage Stress Factors Ddit3 and Hyou1 Compared to the Aquatic Animal Model of Nile Tilapia (Oreochromis niloticus) Brain Arachidonic Acid Expression. Int J Mol Sci 2022; 23:ijms232314662. [PMID: 36498988 PMCID: PMC9737935 DOI: 10.3390/ijms232314662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022] Open
Abstract
Anthropogenic climate change is known to be an increased stress that affects aquatic animal behavior and physiological alternations, which can induce the animal's death. In order to known whether the extracted acetyl-xylogalactan function on the regulation of the external high temperature induced death, we first selected the mammalian cell line "RAW 264.7" used in the previous experiment to evaluate the extracted acetyl-xylogalactan function. We aimed to evaluate the effects of the acetyl-xylogalactan on the RAW 264.7 macrophages and Nile Tilapia stress factor expression under the heat environment. In the in vitro cell observation, we assessed the cell survival, phagocytic activity, intracellular Ca2+ level, mitochondria potential exchange, apoptotic assay findings, galactosidase activity, RNA-seq by NGS and real-time polymerase chain reaction (QPCR) expression. In the in vivo Nile Tilapia observation aimed to evaluate the blood biochemical indicator, brain metabolites exchange and the liver morphology. In our evaluation of RAW 264.7 macrophages, the RNA sequencing and real-time polymerase chain reaction (PCR) was shown to upregulate the expression of the anti-apoptosis Cflar gene and downregulate the expression of the apoptosis factors Ddit3 and Hyou1 to protect macrophages under heat stress. We already knew the extracted acetyl-xylogalactan function on the mammalian "RAW 264.7" system. Following, we used the aquatic Nile Tilapia model as the anthropogenic climate change high temperature experiment. After feeding the Nile Tilapia with the acetyl-xylogalactan, it was found to reduce the brain arachidonic acid (AA) production, which is related to the NF-κB-induced apoptosis mechanism. Combined with the in vitro and in vivo findings, the acetyl-xylogalactan was able to reduce the heat induced cell or tissue stress.
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Affiliation(s)
- Po-Kai Pan
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Kuang-Teng Wang
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Fan-Hua Nan
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Tsung-Meng Wu
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
- Correspondence: (T.-M.W.); (Y.-S.W.); Tel.: +886-8-7703202 (ext. 6223) (Y.-S.W.)
| | - Yu-Sheng Wu
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
- Correspondence: (T.-M.W.); (Y.-S.W.); Tel.: +886-8-7703202 (ext. 6223) (Y.-S.W.)
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Swift L, Zhang C, Kovalchuk O, Boklan J, Trippett T, Narendran A. Dual functionality of the antimicrobial agent taurolidine which demonstrates effective anti-tumor properties in pediatric neuroblastoma. Invest New Drugs 2019; 38:690-699. [PMID: 31264069 DOI: 10.1007/s10637-019-00816-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 06/11/2019] [Indexed: 11/29/2022]
Abstract
High-risk, relapsed and refractory neuroblastoma are associated with poor 5-years survival rates, demonstrating the need for investigational therapeutic agents to treat this disease. Taurolidine is derived from the aminosulfoacid taurine and has known anti-microbial and anti-inflammatory properties. Taurolidine has also demonstrated anti-neoplastic effects in a range of cancers, providing the rationale to investigate the activity of taurolidine against neuroblastoma in preclinical studies. We investigated the in vitro activity of taurolidine against neuroblastoma using the alamar blue cytotoxicity assay, phase-contrast light microscopy, western blotting and analysis of global gene expression by RNA-Seq. In vivo activity of taurolidine was evaluated using mouse xenograft models. In vitro pre-clinical data show that taurolidine is cytotoxic to neuroblastoma cell lines, inducing cell death by apoptosis. Analysis of global gene expression and determination of signaling pathway activation scores using the in silico Pathway Activation Network Decomposition Analysis (iPANDA) platform indicates that taurolidine has an effect on the Notch, mitogen-activated protein kinase (MAPK) and interleukin-10 (IL-10) signaling pathways. In vivo experiments in xenograft mouse models show that taurolidine decreases tumor growth and improves survival. These results provide supportive pre-clinical data on the activity of taurolidine against neuroblastoma. The findings support the rationale for further evaluation of taurolidine for the treatment of relapsed/refractory neuroblastoma patients in an early phase clinical trial.
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Affiliation(s)
- Lucy Swift
- POETIC Laboratory for Preclinical and Drug Discovery Studies, University of Calgary, Calgary, Alberta, Canada.,Division of Pediatric Oncology, Alberta Children's Hospital, 2888 Shaganappi Trail NW, Calgary, Alberta, T3B 6A8, Canada
| | - Chunfen Zhang
- POETIC Laboratory for Preclinical and Drug Discovery Studies, University of Calgary, Calgary, Alberta, Canada.,Division of Pediatric Oncology, Alberta Children's Hospital, 2888 Shaganappi Trail NW, Calgary, Alberta, T3B 6A8, Canada
| | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada
| | - Jessica Boklan
- Phoenix Children's Hospital, Center for Cancer and Blood Disorders, Phoenix, AZ, USA
| | - Tanya Trippett
- Department of Pediatrics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Aru Narendran
- POETIC Laboratory for Preclinical and Drug Discovery Studies, University of Calgary, Calgary, Alberta, Canada. .,Division of Pediatric Oncology, Alberta Children's Hospital, 2888 Shaganappi Trail NW, Calgary, Alberta, T3B 6A8, Canada.
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4
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Fahrner R, Möller A, Press AT, Kortgen A, Kiehntopf M, Rauchfuss F, Settmacher U, Mosig AS. Short-term treatment with taurolidine is associated with liver injury. BMC Pharmacol Toxicol 2017; 18:61. [PMID: 28800748 PMCID: PMC5553585 DOI: 10.1186/s40360-017-0168-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/04/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Taurolidine has been used for peritonitis, oncological and catheter-lock treatment because of its anti-inflammatory properties. It has been suggested that taurolidine has no severe side-effects, but after long-term use morphological and functional changes of the liver were reported. The aim of this study was to investigate the effect of short-term use of taurolidine on the liver. METHODS In HepaRG cell cultures and on a novel liver biochip dose-dependent effects of taurolidine treatment on hepatocyte adherence and cell viability was investigated. Furthermore, liver enzymes and interleukin- (IL-) 6 were measured in supernatants. Male rats were treated with low- or high-dose taurolidine, respectively, and compared to controls with physiological saline solution administration regarding blood serum parameters and histology. RESULTS In HepaRG cell cultures, hepatocyte adherence was significantly decreased, cell death and cleaved caspase-3 were significantly increased after administration of taurolidine in a dose-dependent manner. High-dose application of taurolidine led to elevated liver enzymes and IL-6 secretion in hepatic organoid. After 24 h a significant increase of serum GLDH and ASAT was observed in rats treated with high-dose taurolidine treatment. CONCLUSIONS Our results suggest that taurolidine caused liver injury after short-term use in in vitro and in vivo models probably due to direct toxic effects on hepatocytes. Therefore, the taurolidine dose should be titrated in further investigations regarding liver injury and inflammation.
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Affiliation(s)
- René Fahrner
- Department of General, Visceral and Vascular Surgery, University Hospital Jena, 07747, Jena, Germany. .,Center for Sepsis Control and Care (CSCC), University Hospital Jena, 07747, Jena, Germany.
| | - Anika Möller
- Department of General, Visceral and Vascular Surgery, University Hospital Jena, 07747, Jena, Germany
| | - Adrian T Press
- Center for Sepsis Control and Care (CSCC), University Hospital Jena, 07747, Jena, Germany.,Department of Anesthesiology and Intensive Care Therapy, University Hospital Jena, 07747, Jena, Germany
| | - Andreas Kortgen
- Center for Sepsis Control and Care (CSCC), University Hospital Jena, 07747, Jena, Germany.,Department of Anesthesiology and Intensive Care Therapy, University Hospital Jena, 07747, Jena, Germany
| | - Michael Kiehntopf
- Center for Sepsis Control and Care (CSCC), University Hospital Jena, 07747, Jena, Germany.,Department of Clinical Chemistry and Laboratory Diagnostics, University Hospital Jena, 07747, Jena, Germany
| | - Falk Rauchfuss
- Department of General, Visceral and Vascular Surgery, University Hospital Jena, 07747, Jena, Germany
| | - Utz Settmacher
- Department of General, Visceral and Vascular Surgery, University Hospital Jena, 07747, Jena, Germany
| | - Alexander S Mosig
- Center for Sepsis Control and Care (CSCC), University Hospital Jena, 07747, Jena, Germany
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5
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Harati K, Emmelmann S, Behr B, Goertz O, Hirsch T, Kapalschinski N, Kolbenschlag J, Stricker I, Tannapfel A, Lehnhardt M, Daigeler A. Evaluation of the safety and efficacy of TRAIL and taurolidine use on human fibrosarcoma xenografts in vivo. Oncol Lett 2016; 11:1955-1961. [PMID: 26998107 DOI: 10.3892/ol.2016.4118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 12/16/2015] [Indexed: 01/12/2023] Open
Abstract
Fibrosarcomas are rare malignant soft tissue tumours that exhibit a poor response to current therapeutic regimens. Previously, tumour necrosis factor-related apoptosis-inducing ligand (TRAIL) and taurolidine were observed to induce apoptosis synergistically in HT1080 human fibrosarcoma cells in vitro. Consequently, the present study aimed to assess the safety and efficacy of TRAIL in combination with taurolidine on the local growth of fibrosarcoma xenografts in vivo. HT1080 fibrosarcoma cells were inoculated subcutaneously into both flanks of 49 athymic nude mice in order to establish tumour xenografts. TRAIL and taurolidine were applied intraperitoneally at various single and cumulative treatment doses. After 12 days, the experiment was terminated and surviving animals were euthanised. Tumour progression was determined during and following treatment. To assess the potential toxic effects of the two compounds, the organs (lung, liver, kidney and heart) of all animals were examined histologically. The results revealed that combined treatment with TRAIL and taurolidine significantly inhibited the growth of HT1080 xenografts, whereas untreated animals had steadily increasing tumours. The most effective combination was TRAIL at 2 µg per application (cumulative dose, 16 µg) and taurolidine at 30/15 mg per application (cumulative dose, 180 mg), reducing the mean size of implanted xenografts to 10.9 mm2 following treatment (vs. 48.9 mm2 in the control group; P=0.0100). Despite distinct tumour mass reduction, the rate of mortality was significantly increased in animals treated with TRAIL and taurolidine in a taurolidine dose-dependent manner; however, histological examinations of relevant organs revealed no evidence of systemic toxicity (mean survival time, 7.9 days in the treated groups vs. 12 days in the control group; P<0.0010). In summary, whilst the combination of TRAIL and taurolidine synergistically inhibited the growth of fibrosarcoma xenografts in vivo, it was also accompanied by significantly increased mortality rate. Thus, although taurolidine is assumed to be a compound with an acceptable toxicity profile, and therefore increasingly used in clinical trials, the current findings raise concerns with regard to its safety and therapeutic index, and indicate the requirement for further detailed toxicity tests.
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Affiliation(s)
- Kamran Harati
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Sabine Emmelmann
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Björn Behr
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Ole Goertz
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Tobias Hirsch
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Nicolai Kapalschinski
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Jonas Kolbenschlag
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Ingo Stricker
- Institute of Pathology, Ruhr-University Bochum, Bochum D-44789, Germany
| | - Andrea Tannapfel
- Institute of Pathology, Ruhr-University Bochum, Bochum D-44789, Germany
| | - Marcus Lehnhardt
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
| | - Adrien Daigeler
- Department of Plastic Surgery, Burn Center, Hand Center, Sarcoma Reference Center, BG-University Hospital Bergmannsheil, Bochum D-44789, Germany
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HARATI KAMRAN, SLODNIK PAWEL, CHROMIK ANSGARMICHAEL, BEHR BJÖRN, GOERTZ OLE, HIRSCH TOBIAS, KAPALSCHINSKI NICOLAI, KLEIN-HITPASS LUDGER, KOLBENSCHLAG JONAS, UHL WALDEMAR, LEHNHARDT MARCUS, DAIGELER ADRIEN. Pro-apoptotic effects of pycnogenol on HT1080 human fibrosarcoma cells. Int J Oncol 2015; 46:1629-36. [DOI: 10.3892/ijo.2015.2854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 12/23/2014] [Indexed: 11/06/2022] Open
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MÖHLER HANS, PFIRMAN ROLFW, FREI KARL. Redox-directed cancer therapeutics: Taurolidine and Piperlongumine as broadly effective antineoplastic agents (review). Int J Oncol 2014; 45:1329-36. [PMID: 25175943 PMCID: PMC4151817 DOI: 10.3892/ijo.2014.2566] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 07/02/2014] [Indexed: 12/16/2022] Open
Abstract
Targeting the oxygen stress response pathway is considered a promising strategy to exert antineoplastic activity in a broad spectrum of tumor types. Supporting this view, we summarize the mechanism of action of Taurolidine and Piperlongumine, two antineoplastic agents with strikingly broad tumor selectivity. Taurolidine enhances the oxidative stress (ROS) selectively in tumor cells. Its cytotoxicity for various tumor cells in vitro and in vivo, which includes tumor stem cells, is based on the induction of programmed cell death, largely via apoptosis but also necroptosis and autophagy. The redox-directed mechanism of action of Taurolidine is apparent from the finding that reducing agents e.g., N-acetylcysteine or glutathione impair its cytotoxicity, while its effectiveness is enhanced by agents which inhibit the cellular anti‑oxidant capacity. A similar redox-directed antineoplastic action is shown by Piperlongumine, a recently described experimental drug of plant origin. Taurolidine is particularly advantageous in surgical oncology as this taurine-derivative can be applied perioperatively or systemically with good tolerability as shown in initial clinical applications.
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Affiliation(s)
- HANS MÖHLER
- Institute of Pharmacology, University of Zurich and Department of Chemistry and Applied Biosciences, ETH Zurich, 8057 Zurich, Switzerland
| | - ROLF W. PFIRMAN
- Geistlich Pharma AG, 6110 Wolhusen, University Hospital Zurich, 8091 Zurich, Switzerland
| | - KARL FREI
- Department of Neurosurgery, University Hospital Zurich, 8091 Zurich, Switzerland
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8
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Cancer cell growth inhibitory effect of bee venom via increase of death receptor 3 expression and inactivation of NF-kappa B in NSCLC cells. Toxins (Basel) 2014; 6:2210-28. [PMID: 25068924 PMCID: PMC4147578 DOI: 10.3390/toxins6082210] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/16/2014] [Accepted: 07/18/2014] [Indexed: 01/24/2023] Open
Abstract
Our previous findings have demonstrated that bee venom (BV) has anti-cancer activity in several cancer cells. However, the effects of BV on lung cancer cell growth have not been reported. Cell viability was determined with trypan blue uptake, soft agar formation as well as DAPI and TUNEL assay. Cell death related protein expression was determined with Western blotting. An EMSA was used for nuclear factor kappaB (NF-κB) activity assay. BV (1–5 μg/mL) inhibited growth of lung cancer cells by induction of apoptosis in a dose dependent manner in lung cancer cell lines A549 and NCI-H460. Consistent with apoptotic cell death, expression of DR3 and DR6 was significantly increased. However, deletion of DRs by small interfering RNA significantly reversed BV induced cell growth inhibitory effects. Expression of pro-apoptotic proteins (caspase-3 and Bax) was concomitantly increased, but the NF-κB activity and expression of Bcl-2 were inhibited. A combination treatment of tumor necrosis factor (TNF)-like weak inducer of apoptosis, TNF-related apoptosis-inducing ligand, docetaxel and cisplatin, with BV synergistically inhibited both A549 and NCI-H460 lung cancer cell growth with further down regulation of NF-κB activity. These results show that BV induces apoptotic cell death in lung cancer cells through the enhancement of DR3 expression and inhibition of NF-κB pathway.
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Kollipara PS, Jeong HS, Han SB, Hong JT. (E)-2,4-bis(p-hydroxyphenyl)-2-butenal has an antiproliferative effect on NSCLC cells induced by p38 MAPK-mediated suppression of NF-κB and up-regulation of TNFRSF10B (DR5). Br J Pharmacol 2013; 168:1471-84. [PMID: 23082969 DOI: 10.1111/bph.12024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 09/06/2012] [Accepted: 10/15/2012] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND AND PURPOSE The Maillard Reaction Products (MRPs) are known to be effective in chemoprevention. Here we focused on the anticancer effects of (E)-2,4-bis(p-hydroxyphenyl)-2-butenal (a MRP) on human non-small-cell lung cancer (NSCLC) cells and its mechanism of action. EXPERIMENTAL APPROACH We analysed the activity of (E)-2,4-bis(p-hydroxyphenyl)-2-butenal on NSCLC cells (NCI-H460 and A549) by use of Western blot analysis for major apoptotic proteins, MAPK, NF-κB and death receptor expression. We also used RT-PCR to determine its effects on death receptor mRNA expression, EMSA for effects on NF-κB DNA binding activity and colony formation assay for effects of inhibitors on (E)-2,4-bis(p-hydroxyphenyl)-2-butenal's actions. KEY RESULTS (E)-2,4-bis(p-hydroxyphenyl)-2-butenal induced a concentration (10-40 μg·mL⁻¹)- and time (30 min-72 h)-dependent inhibitory effect on the growth of NSCLC cells due to induction of apoptosis. Concomitantly, it significantly increased the expression of apoptotic proteins such as cleaved caspase-3, cleaved caspase-9, Bax and p53, but down-regulated the expression of anti-apoptotic proteins Bcl-2, cIAP1 and cIAP2. This effect was induced by up-regulation of MAPK and death receptor proteins TNFRSF12, TNFRSF10B and TNFRSF21, but suppression of NF-κB. Of the death receptors activated, only TNFRSF10B knock down with siRNA reversed the effect of (E)-2,4-bis(p-hydroxyphenyl)-2-butenal. Even though all the MAPKs were activated, only pretreatment with a p38 MAPK inhibitor reversed (E)-2,4-bis(p-hydroxyphenyl)-2-butenal-induced cell growth inhibition, increase in cleaved caspase-3, -9 and TNFRSF10B expression, and NF-κB inactivation. CONCLUSIONS AND IMPLICATIONS (E)-2,4-bis(p-hydroxyphenyl)-2-butenal induces apoptosis in NSCLC cells by p38 MAPK-mediated suppression of NF-κB and activation of TNFRSF10B, which then activates the caspase-3 and caspase-9 pathways.
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Karlisch C, Harati K, Chromik AM, Bulut D, Klein-Hitpass L, Goertz O, Hirsch T, Lehnhardt M, Uhl W, Daigeler A. Effects of TRAIL and taurolidine on apoptosis and proliferation in human rhabdomyosarcoma, leiomyosarcoma and epithelioid cell sarcoma. Int J Oncol 2013; 42:945-56. [PMID: 23338823 DOI: 10.3892/ijo.2013.1772] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 12/07/2012] [Indexed: 11/05/2022] Open
Abstract
Soft tissue sarcomas (STS) are a heterogeneous group of malignant tumours representing 1% of all malignancies in adults. Therapy for STS should be individualised and multimodal, but complete surgical resection with clear margins remains the mainstay of therapy. Disseminated soft tissue sarcoma still represents a therapeutic dilemma. Commonly used chemotherapeutic agents such as doxorubicin and ifosfamide have proven to be effective in fewer than 30% in these cases. Therefore, we tested the apoptotic and anti-proliferative in vitro effects of TNF-related apoptosis-inducing ligand (TRAIL) and taurolidine (TRD) on rhabdomyosarcoma (A-204), leiomyosarcoma (SK-LMS-1) and epithelioid cell sarcoma (VA-ES-BJ) cell lines. Viability, apoptosis and necrosis were quantified by FACS analysis (propidium iodide/Annexin V staining). Gene expression was analysed by DNA microarrays and the results validated for selected genes by rtPCR. Protein level changes were documented by western blot analysis. Cell proliferation was analysed by BrdU ELISA assay. The single substances TRAIL and TRD significantly induced apoptotic cell death and decreased proliferation in rhabdomyosarcoma and epithelioid cell sarcoma cells. The combined use of TRAIL and TRD resulted in a synergistic apoptotic effect in all three cell lines, especially in rhabdomyosarcoma cells leaving 18% viable cells after 48 h of incubation (p<0.05). Analysis of the differentially regulated genes revealed that TRD and TRAIL influence apoptotic pathways, including the TNF-receptor associated and the mitochondrial pathway. Microarray analysis revealed remarkable expression changes in a variety of genes, which are involved in different apoptotic pathways and cross talk to other pathways at multiple levels. This in vitro study demonstrates that TRAIL and TRD synergise in inducing apoptosis and inhibiting proliferation in different human STS cell lines. Effects on gene expression differ relevantly in the sarcoma entities. These results provide experimental support for in vivo trials assessing the effect of TRAIL and TRD in STS and sustain the approach of individualized therapy.
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Affiliation(s)
- C Karlisch
- Department of Gynecology and Obstetrics, Marienhospital Witten, Ruhr-University, D-58452 Witten, Germany
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11
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Wu SP, Huang TC, Lin CC, Hui CF, Lin CH, Chen JY. Pardaxin, a fish antimicrobial peptide, exhibits antitumor activity toward murine fibrosarcoma in vitro and in vivo. Mar Drugs 2012; 10:1852-1872. [PMID: 23015777 PMCID: PMC3447341 DOI: 10.3390/md10081852] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 07/18/2012] [Accepted: 08/14/2012] [Indexed: 12/11/2022] Open
Abstract
The antitumor activity of pardaxin, a fish antimicrobial peptide, has not been previously examined in in vitro and in vivo systems for treating murine fibrosarcoma. In this study, the antitumor activity of synthetic pardaxin was tested using murine MN-11 tumor cells as the study model. We show that pardaxin inhibits the proliferation of MN-11 cells and reduces colony formation in a soft agar assay. Transmission electron microscopy (TEM) showed that pardaxin altered the membrane structure similar to what a lytic peptide does, and also produced apoptotic features, such as hollow mitochondria, nuclear condensation, and disrupted cell membranes. A qRT-PCR and ELISA showed that pardaxin induced apoptosis, activated caspase-7 and interleukin (IL)-7r, and downregulated caspase-9, ATF 3, SOCS3, STAT3, cathelicidin, p65, and interferon (IFN)-γ suggesting that pardaxin induces apoptosis through the death receptor/nuclear factor (NF)-κB signaling pathway after 14 days of treatment in tumor-bearing mice. An antitumor effect was observed when pardaxin (25 mg/kg; 0.5 mg/day) was used to treat mice for 14 days, which caused significant inhibition of MN-11 cell growth in mice. Overall, these results indicate that pardaxin has the potential to be a novel therapeutic agent to treat fibrosarcomas.
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Affiliation(s)
- Shu-Ping Wu
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan; (S.-P.W.); (C.-H.L.)
| | - Tsui-Chin Huang
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10 Dahuen Rd., Jiaushi, Ilan 262, Taiwan;
| | - Ching-Chun Lin
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 115, Taiwan;
| | - Cho-Fat Hui
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 115, Taiwan;
- Authors to whom correspondence should be addressed; (J.-Y.C.); (C.-F.H.); Tel.: +886-920802111 (J.-Y.C.); +886-987836032 (C.-F.H.); Fax: +886-39871035
| | - Cheng-Hui Lin
- Department of Aquaculture, National Taiwan Ocean University, Keelung 202, Taiwan; (S.-P.W.); (C.-H.L.)
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10 Dahuen Rd., Jiaushi, Ilan 262, Taiwan;
- Authors to whom correspondence should be addressed; (J.-Y.C.); (C.-F.H.); Tel.: +886-920802111 (J.-Y.C.); +886-987836032 (C.-F.H.); Fax: +886-39871035
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Farshadpour F, Roepman P, Hordijk GJ, Koole R, Slootweg PJ. A gene expression profile for non-smoking and non-drinking patients with head and neck cancer. Oral Dis 2012; 18:178-83. [PMID: 22035108 DOI: 10.1111/j.1601-0825.2011.01861.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE A small subset of patients with head and neck squamous cell carcinoma are non-smoking and non-drinking and have distinct clinical characteristics. We aimed to identify a possible different genetic profile for these patients when compared with their smoking and drinking counterparts. MATERIALS AND METHODS The gene expression data previously detected from primary tumors located in the oral cavity and oropharynx, using DNA microarray was analyzed for their differential expression between non-smoking and non-drinking patients (n = 15) and smoking and drinking patients (n = 89). Student's T-test (P < 0.05) and 10-fold cross-validation procedure (100 times repeated) were performed to determine differentially expressed genes. RESULTS Non-smoking and non-drinking patients were older, mostly female and had oral cavity-localized tumors, whereas smoking and drinking patients were younger male patients with 81% oral cavity and 19% oropharynx tumors. A set of 49 differentially expressed genes were detected. Among others, seven genes related to interferon-γ were upregulated and two genes linked to NFKB pathway were downregulated. CONCLUSIONS Differentially expressed genes in non-smoking and non-drinking patients possibly indicate the presence of a different cellular response to carcinogenic events in these patients. Further studies are warranted to validate this gene set and explore possible therapeutic implications to improve prognosis for these patients.
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Affiliation(s)
- F Farshadpour
- Department of Otorhinolaryngology and Head and Neck Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
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13
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Dong B, Lv G, Wang Q, Wei F, Bellail AC, Hao C, Wang G. Targeting A20 enhances TRAIL-induced apoptosis in hepatocellular carcinoma cells. Biochem Biophys Res Commun 2012; 418:433-8. [PMID: 22285182 DOI: 10.1016/j.bbrc.2012.01.056] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 01/11/2012] [Indexed: 11/17/2022]
Abstract
A20 was initially identified as a primary gene product following TNF α treatment in human umbilical vein endothelial cells. Increased A20 expression is associated with tumorigenesis in many cancers, whereas the loss of A20 function is linked to lymphoma. It has been reported that A20 protects cells from TRAIL-induced apoptosis; however, the mechanism by which A20 is involved is still largely unknown. Our results indicate that TRAIL induces the hepatocellular carcinoma apoptosis associated with A20 knockdown in a concentration-dependent manner. TRAIL-induced apoptosis requires p18 caspase-8 activation, and, the activation of caspase-8 is at least in part, due to the direct cleavage of RIP1 by A20 knockdown. These findings suggest that A20 modulates the sensitivity to TRAIL by RIP1 ubiquitination, thereby repressing the recruitment and activation of pro-caspase-8 into the active form caspase-8. Thus, our study suggests that A20 protects against TRAIL-induced apoptosis through the regulation of RIP1 ubiquitination.
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Affiliation(s)
- Bingfei Dong
- Department of Hepatopancreatobiliary Surgery, First Hospital of Jilin University, Jilin University, 71 Xinmin Street, Changchun 130021, China
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14
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Lee MH, Han DW, Hyon SH, Park JC. Apoptosis of human fibrosarcoma HT-1080 cells by epigallocatechin-3-O-gallate via induction of p53 and caspases as well as suppression of Bcl-2 and phosphorylated nuclear factor-κB. Apoptosis 2011; 16:75-85. [PMID: 20963498 DOI: 10.1007/s10495-010-0548-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Animal tumor bioassays and in vitro cell culture systems have demonstrated that epigallocatechin-3-O-gallate (EGCG), the predominant catechin in green tea, possesses anti-proliferative and pro-apoptotic effects on various cancer cells and tumors. In this study, we investigated the effects of EGCG on cell growth, cell cycle progression, and apoptosis in human fibrosarcoma HT-1080 cells. The involvement of p53, Bcl-2, Bax, caspases, and nuclear factor-κB (NF-κB) was examined as a mechanism for the anti-cancer activity of EGCG. Time-dependent intracellular trafficking of EGCG was also determined using fluorescein isothiocyanate (FITC)-conjugated EGCG (FITC-EGCG). Our data show that EGCG treatment caused dose-dependent cell growth inhibition, cell cycle arrest at the G(0)/G(1) phase, and DNA fragmentation suggesting the induction of apoptosis in HT-1080 cells. Immunoblot analysis revealed that the expression of p53, caspase-7 and -9 as well as the ratio of Bax/Bcl-2 protein increased significantly with higher EGCG concentrations and longer incubation times. Moreover, expression of phosphorylated NF-κB/p65 in HT-1080 cells was inhibited by EGCG treatment in a dose-dependent manner, while that of unphosphorylated NF-κB/p65 remained unaffected. Here we also reveal time-dependent internalization of FITC-EGCG into the cytosol of HT-1080 cells and its subsequent nuclear translocation. These results suggest that EGCG may interrupt exogenous signals directed towards genes involved in proliferation and cell cycle progression. Taken together, our data indicate that HT-1080 apoptosis may be mediated through the induction of p53 and caspases by the pro-oxidant activity of internalized EGCG, as well as suppression of Bcl-2 and phosphorylated NF-κB by the antioxidant activity of EGCG.
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Affiliation(s)
- Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering, Yonsei University College of Medicine, 134 Shinchon-dong, Seodaemun-gu, Seoul, Korea
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15
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Daigeler A, Chromik AM, Haendschke K, Emmelmann S, Siepmann M, Hensel K, Schmitz G, Klein-Hitpass L, Steinau HU, Lehnhardt M, Hauser J. Synergistic effects of sonoporation and taurolidin/TRAIL on apoptosis in human fibrosarcoma. ULTRASOUND IN MEDICINE & BIOLOGY 2010; 36:1893-1906. [PMID: 20870344 DOI: 10.1016/j.ultrasmedbio.2010.08.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 07/30/2010] [Accepted: 08/13/2010] [Indexed: 05/29/2023]
Abstract
Sonodynamic therapy, in combination with ultrasound contrast agents, proved to enhance the uptake of chemotherapeutics in malignant cells. HT1080 fibrosarcoma cells were treated in vitro with a combination of ultrasound SonoVue™-microbubbles and taurolidine (TRD) plus tumor necrosis factor related apoptosis inducing ligand (TRAIL). Apoptosis was measured by TdT-mediated dUTP-biotin nick end labelling (TUNEL) assay and fluorescence activated cell sorting (FACS) analysis. Gene expression was analysed by RNA-microarray. The apoptotic effects of TRD and TRAIL on human fibrosarcoma are enhanced by sonodynamic therapy and additional application of contrast agents, such as SonoVue™ by 25%. A broad change in the expression of genes related to apoptotic pathways is observed when ultrasound and microbubbles act synchronously in combination with the chemotherapeutics (e.g. BIRC3, NFKBIA and TNFAIP3). Some of these genes have already been proven to play a role in programmed cell death in human fibrosarcoma (HSPA1A/HSPA1B, APAF1, PAWR, SOCS2) or were associated with sonication induced apoptosis (CD44). Further studies are needed to explore the options of sonodynamic therapy on soft tissue sarcoma and its molecular mechanisms.
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Affiliation(s)
- Adrien Daigeler
- Department of Hand, Plastic and Reconstructive Surgery, Burn Center, BG-Unfallkrankenhaus, Ludwigshafen, Germany.
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16
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Chromik AM, Hahn SA, Daigeler A, Flier A, Bulut D, May C, Harati K, Roschinsky J, Sülberg D, Weyhe D, Mittelkötter U, Uhl W. Gene expression analysis of cell death induction by taurolidine in different malignant cell lines. BMC Cancer 2010; 10:595. [PMID: 21034493 PMCID: PMC2988031 DOI: 10.1186/1471-2407-10-595] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Accepted: 10/30/2010] [Indexed: 11/24/2022] Open
Abstract
Background The anti-infective agent Taurolidine (TRD) has been shown to have cell death inducing properties, but the mechanism of its action is largely unknown. The aim of this study was to identify potential common target genes modulated at the transcriptional level following TRD treatment in tumour cell lines originating from different cancer types. Methods Five different malignant cell lines (HT29, Chang Liver, HT1080, AsPC-1 and BxPC-3) were incubated with TRD (100 μM, 250 μM and 1000 μM). Proliferation after 8 h and cell viability after 24 h were analyzed by BrdU assay and FACS analysis, respectively. Gene expression analyses were carried out using the Agilent -microarray platform to indentify genes which displayed conjoint regulation following the addition of TRD in all cell lines. Candidate genes were subjected to Ingenuity Pathways Analysis and selected genes were validated by qRT-PCR and Western Blot. Results TRD 250 μM caused a significant inhibition of proliferation as well as apoptotic cell death in all cell lines. Among cell death associated genes with the strongest regulation in gene expression, we identified pro-apoptotic transcription factors (EGR1, ATF3) as well as genes involved in the ER stress response (PPP1R15A), in ubiquitination (TRAF6) and mitochondrial apoptotic pathways (PMAIP1). Conclusions This is the first conjoint analysis of potential target genes of TRD which was performed simultaneously in different malignant cell lines. The results indicate that TRD might be involved in different signal transduction pathways leading to apoptosis.
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Affiliation(s)
- Ansgar M Chromik
- Department of Visceral and General Surgery, St. Josef Hospital, Ruhr-University Bochum, Gudrunstrasse 56, D-44791 Bochum, Germany.
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Chromik AM, Huss S, Osseili H, Daigeler A, Kersting S, Sülberg D, Mittelkötter U, Herdegen T, Uhl W, Müller AM. Oral administration of the anti-proliferative substance taurolidine has no impact on dextran sulfate sodium induced colitis-associated carcinogenesis in mice. J Carcinog 2010; 9:5. [PMID: 20442801 PMCID: PMC2862504 DOI: 10.4103/1477-3163.62536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Accepted: 03/14/2010] [Indexed: 12/11/2022] Open
Abstract
Background: New chemopreventive strategies for ulcerative colitis (UC)-associated dysplasia and cancer have to be evaluated. Taurolidine (TRD) has anti-inflammatory, anti-proliferative and anti-neoplastic properties with almost absent toxicity. The aim of the study was to determine whether TRD decreases dysplasia in the well-characterized Dextran Sulfate Sodium – Azoxymethane (DSS-AOM) animal model for UC-associated carcinogenesis. Material and Methods: The DSS-AOM model of carcinogenesis was induced in female inbred C57BL/6 mice. Half of the mice were treated with TRD, the other served as control. After 100 days macroscopic, histological and immunhistochemical (β-Catenin, E-Cadherin, SOX9, Ki-67, Cyclin-D1) examination of the colon was performed. Results: Incidence, multiplicity, grading and growth pattern of adenomas did not differ significantly between TRD and control group. In all animals, inflammatory changes were absent. Immunhistochemistry revealed increased expression of Ki-67, β-catenin, SOX9 and Cyclin-D1 in adenomas compared to normal mucosa – without significant difference between TRD and control treatment. Conclusion: Oral administration of TRD has no impact on DSS-induced colitis-associated carcinogenesis. However, SOX9 and Cyclin-D1 representing key members of the Wnt pathway have not yet been described in the DSS-AOM model of carcinogenesis – underlining the importance of this oncogenic pathway in this setting.
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Chromik AM, Daigeler A, Bulut D, Flier A, May C, Harati K, Roschinsky J, Sülberg D, Ritter PR, Mittelkötter U, Hahn SA, Uhl W. Comparative analysis of cell death induction by Taurolidine in different malignant human cancer cell lines. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2010; 29:21. [PMID: 20205945 PMCID: PMC2846881 DOI: 10.1186/1756-9966-29-21] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2010] [Accepted: 03/07/2010] [Indexed: 12/15/2022]
Abstract
Background Taurolidine (TRD) represents an anti-infective substance with anti-neoplastic activity in many malignant cell lines. So far, the knowledge about the cell death inducing mechanisms and pathways activated by TRD is limited. The aim of this study was therefore, to perform a comparative analysis of cell death induction by TRD simultaneously in different malignant cell lines. Materials and methods Five different malignant cell lines (HT29/Colon, Chang Liver/Liver, HT1080/fibrosarcoma, AsPC-1/pancreas and BxPC-3/pancreas) were incubated with increasing concentrations of TRD (100 μM, 250 μM and 1000 μM) for 6 h and 24 h. Cell viability, apoptosis and necrosis were analyzed by FACS analysis (Propidiumiodide/AnnexinV staining). Additionally, cells were co-incubated with the caspase Inhibitor z-VAD, the radical scavenger N-Acetylcystein (NAC) and the Gluthation depleting agent BSO to examine the contribution of caspase activation and reactive oxygen species in TRD induced cell death. Results All cell lines were susceptible to TRD induced cell death without resistance toward this anti-neoplastic agent. However, the dose response effects were varying largely between different cell lines. The effect of NAC and BSO co-treatment were highly different among cell lines - suggesting a cell line specific involvement of ROS in TRD induced cell death. Furthermore, impact of z-VAD mediated inhibition of caspases was differing strongly among the cell lines. Conclusion This is the first study providing a simultaneous evaluation of the anti-neoplastic action of TRD across several malignant cell lines. The involvement of ROS and caspase activation was highly variable among the five cell lines, although all were susceptible to TRD induced cell death. Our results indicate, that TRD is likely to provide multifaceted cell death mechanisms leading to a cell line specific diversity.
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Affiliation(s)
- Ansgar M Chromik
- Department of Visceral and General Surgery, St Josef Hospital, Ruhr-University Bochum, Germany.
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Neary PM, Hallihan P, Wang JH, Pfirrmann RW, Bouchier-Hayes DJ, Redmond HP. The evolving role of taurolidine in cancer therapy. Ann Surg Oncol 2009; 17:1135-43. [PMID: 20039217 DOI: 10.1245/s10434-009-0867-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2009] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND DESIGN Taurolidine consists of two taurinamide rings derived from the naturally occurring amino acid taurine. It has been utilized to prevent adhesions, as an antimicrobial, and as an anti-inflammatory agent. More recently, it has been found to exert antineoplastic activity. We reviewed the literature regarding taurolidine and its role in cancer treatment. RESULTS AND CONCLUSION Taurolidine induces cancer cell death through a variety of mechanisms. Even now, all the antineoplastic pathways it employs are not completely elucidated. It has been shown to enhance apoptosis, inhibit angiogenesis, reduce tumor adherence, downregulate proinflammatory cytokine release, and stimulate anticancer immune regulation following surgical trauma. Apoptosis is activated through both a mitochondrial cytochrome-c-dependent mechanism and an extrinsic direct pathway. A lot of in vitro and animal data support taurolidine's tumoricidal action. Taurolidine has been used as an antimicrobial agent in the clinical setting since the 1970s and thus far appears nontoxic. The nontoxic nature of taurolidine makes it a favorable option compared with current chemotherapeutic regimens. Few published clinical studies exist evaluating the role of taurolidine as a chemotherapeutic agent. The literature lacks a gold-standard level 1 randomized clinical trial to evaluate taurolidine's potential antineoplastic benefits. However, these trials are currently underway. Such randomized control studies are vital to clarify the role of taurolidine in modern cancer treatment.
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Affiliation(s)
- Peter M Neary
- Department of Academic Surgery, University College Cork, Cork University Hospital, Wilton, Cork, Ireland.
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Li H, Zhu X, Zhang Y, Xiang J, Chen H. Arsenic trioxide exerts synergistic effects with cisplatin on non-small cell lung cancer cells via apoptosis induction. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2009; 28:110. [PMID: 19664237 PMCID: PMC3225875 DOI: 10.1186/1756-9966-28-110] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2009] [Accepted: 08/08/2009] [Indexed: 11/10/2022]
Abstract
Background Despite multidisciplinary treatment, lung cancer remains a highly lethal disease due to poor response to chemotherapy. The identification of therapeutic agents with synergistic effects with traditional drugs is an alternative for lung cancer therapy. In this study, the synergistic effects of arsenic trioxide (As2O3) with cisplatin (DDP) on A549 and H460 non-small cell lung cancer (NSCLC) cells were explored. Methods A549 and H460 human lung cancer cells were treated with As2O3 and/or DDP. Cell growth curves, cell proliferation, cell cycle, and apoptosis of human cancer cell lines were determined by the 3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di-phenytetrazoliumromide (MTT) method, clonogenic assay, and flow cytometry (FCM). Apoptosis was further assessed by TUNEL staining. Cell cycle and apoptosis related protein p21, cyclin D1, Bcl-2, bax, clusterin, and caspase-3 were detected by western blot. Results MTT and clonogenic assay showed As2O3 within 10-2 μM to 10 μM exerted inhibition on the proliferation of NSCLC cells, and 2.5 μM As2O3 exerted synergistic inhibition on proliferation with 3 μg/ml DDP. The combination indices (CI) for A549 and H460 were 0.5 and 0.6, respectively, as confirmed by the synergism of As2O3 with DDP. FCM showed As2O3 did not affect the cell cycle. The G0/G1 fraction ranged from 57% to 62% for controlled A549 cells and cells treated with As2O3 and/or DDP. The G0/G1 fraction ranged from 37% to 42% for controlled H460 cells and cells treated with As2O3 and/or DDP. FCM and TUNEL staining illustrated that the combination of As2O3 and DDP provoked synergistic effects on apoptosis induction based on the analysis of the apoptosis index. Western blotting revealed that the expression of cell cycle related protein p21 and cyclin D1 were not affected by the treatments, whereas apoptosis related protein bax, Bcl-2, and clusterin were significantly regulated by As2O3 and/or DDP treatments compared with controls. The expression of caspase-3 in cells treated with the combination of As2O3 and DDP did not differ from that in cells treated with a single agent. Conclusion As2O3 exerted synergistic effects with DDP on NSCLC cells, and the synergistic effects were partly due to the induction of caspase-independent apoptosis.
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Affiliation(s)
- Hecheng Li
- Department of Thoracic Surgery, Fudan University Cancer Hospital/Cancer Institute, Shanghai, PR China.
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