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Roy Chaudhuri T, Lin Q, Stachowiak EK, Rosario SR, Spernyak JA, Ma WW, Stachowiak MK, Greene MK, Quinn GP, McDade SS, Clynes M, Scott CJ, Straubinger RM. Dual-Hit Strategy for Therapeutic Targeting of Pancreatic Cancer in Patient-Derived Xenograft Tumors. Clin Cancer Res 2024; 30:1367-1381. [PMID: 38270582 PMCID: PMC11019863 DOI: 10.1158/1078-0432.ccr-23-0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/21/2023] [Accepted: 01/23/2024] [Indexed: 01/26/2024]
Abstract
PURPOSE Paracrine activation of pro-fibrotic hedgehog (HH) signaling in pancreatic ductal adenocarcinoma (PDAC) results in stromal amplification that compromises tumor drug delivery, efficacy, and patient survival. Interdiction of HH-mediated tumor-stroma crosstalk with smoothened (SMO) inhibitors (SHHi) "primes" PDAC patient-derived xenograft (PDX) tumors for increased drug delivery by transiently increasing vascular patency/permeability, and thereby macromolecule delivery. However, patient tumor isolates vary in their responsiveness, and responders show co-induction of epithelial-mesenchymal transition (EMT). We aimed to identify the signal derangements responsible for EMT induction and reverse them and devise approaches to stratify SHHi-responsive tumors noninvasively based on clinically-quantifiable parameters. EXPERIMENTAL DESIGN Animals underwent diffusion-weighted magnetic resonance (DW-MR) imaging for measurement of intratumor diffusivity. In parallel, tissue-level deposition of nanoparticle probes was quantified as a marker of vascular permeability/perfusion. Transcriptomic and bioinformatic analysis was employed to investigate SHHi-induced gene reprogramming and identify key "nodes" responsible for EMT induction. RESULTS Multiple patient tumor isolates responded to short-term SHH inhibitor exposure with increased vascular patency and permeability, with proportionate increases in tumor diffusivity. Nonresponding PDXs did not. SHHi-treated tumors showed elevated FGF drive and distinctly higher nuclear localization of fibroblast growth factor receptor (FGFR1) in EMT-polarized tumor cells. Pan-FGFR inhibitor NVP-BGJ398 (Infigratinib) reversed the SHHi-induced EMT marker expression and nuclear FGFR1 accumulation without compromising the enhanced permeability effect. CONCLUSIONS This dual-hit strategy of SMO and FGFR inhibition provides a clinically-translatable approach to compromise the profound impermeability of PDAC tumors. Furthermore, clinical deployment of DW-MR imaging could fulfill the essential clinical-translational requirement for patient stratification.
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Affiliation(s)
- Tista Roy Chaudhuri
- Department of Pharmaceutical Sciences, University at
Buffalo, State University of New York, Buffalo, NY 14214
| | - Qingxiang Lin
- Department of Cell Stress Biology, Roswell Park
Comprehensive Cancer Center, Buffalo, NY 14263
| | - Ewa K. Stachowiak
- Department of Pathology and Anatomical Sciences, University
at Buffalo, State University of New York, Buffalo, NY 14214
| | - Spencer R. Rosario
- Department of Bioinformatics and Biostatistics, Roswell
Park Comprehensive Cancer Center, Buffalo, NY 14263
| | - Joseph A. Spernyak
- Department of Cell Stress Biology, Roswell Park
Comprehensive Cancer Center, Buffalo, NY 14263
| | - Wen Wee Ma
- Department of Hematology and Oncology, Taussig Cancer
Institute, Cleveland Clinic, Cleveland, OH, 44106
| | - Michal K. Stachowiak
- Department of Pathology and Anatomical Sciences, University
at Buffalo, State University of New York, Buffalo, NY 14214
| | - Michelle K. Greene
- The Patrick G Johnston Centre for Cancer Research, School
of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast,
Belfast BT9 7AE, UK
| | - Gerard P. Quinn
- The Patrick G Johnston Centre for Cancer Research, School
of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast,
Belfast BT9 7AE, UK
| | - Simon S. McDade
- The Patrick G Johnston Centre for Cancer Research, School
of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast,
Belfast BT9 7AE, UK
| | - Martin Clynes
- The National Institute for Cellular Biotechnology, Dublin
City University, Glasnevin 9, Dublin, Ireland
| | - Christopher J. Scott
- The Patrick G Johnston Centre for Cancer Research, School
of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast,
Belfast BT9 7AE, UK
| | - Robert M. Straubinger
- Department of Pharmaceutical Sciences, University at
Buffalo, State University of New York, Buffalo, NY 14214
- Department of Cell Stress Biology, Roswell Park
Comprehensive Cancer Center, Buffalo, NY 14263
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2
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Lin Q, Serratore A, Niu J, Shen S, Roy Chaudhuri T, Ma WW, Qu J, Kandel ES, Straubinger RM. Fibroblast growth factor receptor 1 inhibition suppresses pancreatic cancer chemoresistance and chemotherapy-driven aggressiveness. Drug Resist Updat 2024; 73:101064. [PMID: 38387284 DOI: 10.1016/j.drup.2024.101064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/26/2023] [Accepted: 02/01/2024] [Indexed: 02/24/2024]
Abstract
AIMS Pancreatic ductal adenocarcinoma (PDAC) is often intrinsically-resistant to standard-of-care chemotherapies such as gemcitabine. Acquired gemcitabine resistance (GemR) can arise from treatment of initially-sensitive tumors, and chemotherapy can increase tumor aggressiveness. We investigated the molecular mechanisms of chemoresistance and chemotherapy-driven tumor aggressiveness, which are understood incompletely. METHODS Differential proteomic analysis was employed to investigate chemotherapy-driven chemoresistance drivers and responses of PDAC cells and patient-derived tumor xenografts (PDX) having different chemosensitivities. We also investigated the prognostic value of FGFR1 expression in the efficacy of selective pan-FGFR inhibitor (FGFRi)-gemcitabine combinations. RESULTS Quantitative proteomic analysis of a highly-GemR cell line revealed fibroblast growth factor receptor 1 (FGFR1) as the highest-expressed receptor tyrosine kinase. FGFR1 knockdown or FGFRi co-treatment enhanced gemcitabine efficacy and decreased GemR marker expression, implicating FGFR1 in augmentation of GemR. FGFRi treatment reduced PDX tumor progression and prolonged survival significantly, even in highly-resistant tumors in which neither single-agent showed efficacy. Gemcitabine exacerbated aggressiveness of highly-GemR tumors, based upon proliferation and metastatic markers. Combining FGFRi with gemcitabine or gemcitabine+nab-paclitaxel reversed tumor aggressiveness and progression, and prolonged survival significantly. In multiple PDAC PDXs, FGFR1 expression correlated with intrinsic tumor gemcitabine sensitivity. CONCLUSION FGFR1 drives chemoresistance and tumor aggressiveness, which FGFRi can reverse.
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Affiliation(s)
- Qingxiang Lin
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; New York State Center of Excellence in Bioinformatics & Life Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA; Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Andrea Serratore
- New York State Center of Excellence in Bioinformatics & Life Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA; Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Jin Niu
- New York State Center of Excellence in Bioinformatics & Life Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA; Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Shichen Shen
- New York State Center of Excellence in Bioinformatics & Life Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA; Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Tista Roy Chaudhuri
- New York State Center of Excellence in Bioinformatics & Life Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA; Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Wen Wee Ma
- Department of Hematology and Medical Oncology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Jun Qu
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; New York State Center of Excellence in Bioinformatics & Life Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA; Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Eugene S Kandel
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Robert M Straubinger
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; New York State Center of Excellence in Bioinformatics & Life Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA; Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA; Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA.
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Wang X, Niu J, Qian S, Shen S, Straubinger RM, Qu J. Species-Deconvolved Proteomics for In Situ Investigation of Tumor-Stroma Interactions after Treatment of Pancreatic Cancer Patient-Derived Xenografts with Combined Gemcitabine and Paclitaxel. J Proteome Res 2023; 22:2436-2449. [PMID: 37311110 PMCID: PMC10561664 DOI: 10.1021/acs.jproteome.3c00164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Tumor-stroma interactions are critical in pancreatic ductal adenocarcinoma (PDAC) progression and therapeutics. Patient-derived xenograft (PDX) models recapitulate tumor-stroma interactions, but the conventional antibody-based immunoassay is inadequate to discriminate tumor and stromal proteins. Here, we describe a species-deconvolved proteomics approach embedded in IonStar that can unambiguously quantify the tumor (human-derived) and stromal (mouse-derived) proteins in PDX samples, enabling unbiased investigation of tumor and stromal proteomes with excellent quantitative reproducibility. With this strategy, we studied tumor-stroma interactions in PDAC PDXs that responded differently to Gemcitabine combined with nab-Paclitaxel (GEM+PTX) treatment. By analyzing 48 PDX animals 24 h/192 h after treatment with/without GEM+PTX, we quantified 7262 species-specific proteins under stringent cutoff criteria, with high reproducibility. For the PDX sensitive to GEM+PTX, the drug-dysregulated proteins in tumor cells were involved in suppressed oxidative phosphorylation and the TCA cycle, and in the stroma, inhibition of glycolytic activity was predominant, suggesting a relieved reverse Warburg effect by the treatment. In GEM+PTX-resistant PDXs, protein changes suggested extracellular matrix deposition and activation of tumor cell proliferation. Key findings were validated by immunohistochemistry (IHC). Overall, this approach provides a species-deconvolved proteomic platform that could advance cancer therapeutic studies by enabling unbiased exploration of tumor-stroma interactions in the large number of PDX samples required for such investigations.
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Affiliation(s)
- Xue Wang
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, New York 14203, United States
| | - Jin Niu
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, New York 14203, United States
| | - Shuo Qian
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, New York 14203, United States
| | - Shichen Shen
- New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York 14203, United States
| | - Robert M. Straubinger
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, New York 14203, United States
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, New York 14203, United States
- New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York 14203, United States
| | - Jun Qu
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, New York 14203, United States
- Department of Pharmaceutical Sciences, University at Buffalo, SUNY, Buffalo, New York 14203, United States
- New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York 14203, United States
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Moloney C, Roy Chaudhuri T, Spernyak JA, Straubinger RM, Brougham DF. Long-circulating magnetoliposomes as surrogates for assessing pancreatic tumour permeability and nanoparticle deposition. Acta Biomater 2023; 158:611-624. [PMID: 36603732 PMCID: PMC10022638 DOI: 10.1016/j.actbio.2022.12.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/29/2022] [Accepted: 12/26/2022] [Indexed: 01/03/2023]
Abstract
Nanocarriers are candidates for cancer chemotherapy delivery, with growing numbers of clinically-approved nano-liposomal formulations such as Doxil® and Onivyde® (liposomal doxorubicin and irinotecan) providing proof-of-concept. However, their complex biodistribution and the varying susceptibility of individual patient tumours to nanoparticle deposition remains a clinical challenge. Here we describe the preparation, characterisation, and biological evaluation of phospholipidic structures containing solid magnetic cores (SMLs) as an MRI-trackable surrogate that could aid in the clinical development and deployment of nano-liposomal formulations. Through the sequential assembly of size-defined iron oxide nanoparticle clusters with a stabilizing anionic phospholipid inner monolayer and an outer monolayer of independently-selectable composition, SMLs can mimic physiologically a wide range of nano-liposomal carrier compositions. In patient-derived xenograft models of pancreatic adenocarcinoma, similar tumour deposition of SML and their nano-liposomal counterparts of identical bilayer composition was observed in vivo, both at the tissue level (fluorescence intensities of 1.5 × 108 ± 1.8 × 107 and 1.2 × 108 ± 6.3 × 107, respectively; ns, 99% confidence interval) and non-invasively using MR imaging. We observed superior capabilities of SML as a surrogate for nano-liposomal formulations as compared to other clinically-approved iron oxide nano-formulations (ferumoxytol). In combination with diagnostic and therapeutic imaging tools, SMLs have high clinical translational potential to predict nano-liposomal drug carrier deposition and could assist in stratifying patients into treatment regimens that promote optimal tumour deposition of nanoparticulate chemotherapy carriers. STATEMENT OF SIGNIFICANCE: Solid magnetoliposomes (SMLs) with compositions resembling that of FDA-approved agents such as Doxil® and Onivyde® offer potential application as non-invasive MRI stratification agents to assess extent of tumour deposition of nano-liposomal therapeutics prior to administration. In animals with pancreatic adenocarcinoma (PDAC), SML-PEG exhibited (i) tumour deposition comparable to liposomes of the same composition; (ii) extended circulation times, with continued tumour deposition up to 24 hours post-injection; and (iii) MRI capabilities to determine tumour deposition up to 1 week post-injection, and confirmation of patient-to-patient variation in nanoparticulate deposition in tumours. Hence SMLs with controlled formulation are a step towards non-invasive MRI stratification approaches for patients, enabled by evaluation of the extent of deposition in tumours prior to administration of nano-liposomal therapeutics.
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Affiliation(s)
- Cara Moloney
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Tista Roy Chaudhuri
- Dept. of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Joseph A Spernyak
- Department of Cell Stress Biology Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Robert M Straubinger
- Dept. of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA; Department of Cell Stress Biology Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA.
| | - Dermot F Brougham
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
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5
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Zhang T, Li S, Li J, Yin F, Hua Y, Wang Z, Wang H, Zuo D, Xu J, Cai Z. Pectolinarigenin acts as a potential anti-osteosarcoma agent via mediating SHP-1/JAK2/STAT3 signaling. Biomed Pharmacother 2022; 153:113323. [PMID: 35752008 DOI: 10.1016/j.biopha.2022.113323] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 06/10/2022] [Accepted: 06/20/2022] [Indexed: 11/28/2022] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) plays essential roles in cancer progression and has been considered as a promising target for cancer therapy. Here, we used a dual luciferase assay to identify that pectolinarigenin inhibited STAT3 transcriptional activity. Further, results showed pectolinarigenin inhibited constitutive and IL6 induced STAT3 signaling, diminished the accumulation of STAT3 in the nucleus, dimerization and blocked STAT3 DNA binding activity. Mechanism investigations indicated that pectolinarigenin disturbed the STAT3/DNMT1/HDAC1 complex formation in the promoter region of SHP-1, which reversely mediates STAT3 signaling, leading to the upregulation of SHP-1 expression in osteosarcoma. We also found pectolinarigenin significantly suppressed osteosarcoma growth, induced apoptosis. In addition, pectolinarigenin blocked tumor cells migration, invasion and reserved EMT phenotype. In spontaneous tibial injection and patient-derived xenograft models of osteosarcoma, we identified administration (i.p.) of pectolinarigenin (20 mg/kg/2 days and 50 mg/kg/2 days) blocked STAT3 activation and disturbed tumor growth and metastasis with superior pharmacodynamic properties. Taken together, our findings demonstrate that pectolinarigenin may be a candidate for osteosarcoma intervention linked to its STAT3 signaling inhibitory activity.
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Affiliation(s)
- Tao Zhang
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China.
| | - Suoyuan Li
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China; Suzhou Municipal Hospital, Suzhou, PR China
| | - Jingjie Li
- Translational Medicine Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Fei Yin
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Yingqi Hua
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Zhuoying Wang
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Hongsheng Wang
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Dongqing Zuo
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Jing Xu
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China
| | - Zhengdong Cai
- Department of Orthopedics, Shanghai Bone Tumor Institution, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, PR China.
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6
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Ghosh S, Sun B, Jahagirdar D, Luo D, Ortega J, Straubinger RM, Lovell JF. Single-treatment tumor ablation with photodynamic liposomal irinotecan sucrosulfate. Transl Oncol 2022; 19:101390. [PMID: 35290919 PMCID: PMC8918863 DOI: 10.1016/j.tranon.2022.101390] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 02/21/2022] [Accepted: 03/01/2022] [Indexed: 12/28/2022] Open
Abstract
Irinotecan (IRI) loaded actively into PEGylated liposomes via a sucrosulfate gradient has been approved recently to treat advanced pancreatic cancer. In this study, a similar liposomal composition was developed that includes a low mole fraction (1 mol.%) of porphyrin-phospholipid (PoP), a photosensitizer that stably incorporates into liposomes, to confer light-triggered IRI release. IRI-loaded PoP liposomes containing ammonium sucrosulfate (ASOS) as a complexing agent were more stable in serum compared to liposomes employing the more conventional ammonium sulfate. Without irradiation, PoP IRI liposomes released less than 5% IRI during 8 h of incubation in bovine serum at 37 °C, but released over 90% of the drug within minutes of exposure to red light (665 nm) irradiation. A single treatment with IRI-PoP liposomes and light exposure (15 mg/kg IRI with 250 J/cm2) resulted in tumor eradication in mice bearing either MIA PaCa-2 tumors or low-passage patient-derived tumor xenografts that recapitulate characteristics of the clinical disease. Analogous monotherapies of IRI or photodynamic therapy were ineffective in controlling tumor growth. Enhanced drug uptake could be visualized within laser-treated tumors by direct in situ imaging of irinotecan. Biodistribution analysis of IRI, its active metabolite (SN-38), and major metabolite (SN-38 G) showed that laser treatment significantly increased tumor accumulation of all IRI-derived molecular species. A pharmacokinetic model that hypothesized tumor vasculature permeabilization as the primary reason underlying the increased drug deposition accounted for the enhanced drug influx into tumors.
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Affiliation(s)
- Sanjana Ghosh
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, United States of America
| | - Boyang Sun
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Buffalo, New York, 14260, United States of America
| | - Dushyant Jahagirdar
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A 0C7, Canada
| | - Dandan Luo
- CSL Behring LLC, 1020 1st Avenue, King of Prussia, PA, 19406, United States of America
| | - Joaquin Ortega
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A 0C7, Canada
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY United States of America
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, United States of America.
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7
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Ghosh S, Lovell JF. Two Laser Treatments Can Improve Tumor Ablation Efficiency of Chemophototherapy. Pharmaceutics 2021; 13:pharmaceutics13122183. [PMID: 34959464 PMCID: PMC8704214 DOI: 10.3390/pharmaceutics13122183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022] Open
Abstract
Chemophototherapy is an emerging tumor ablation modality that can improve local delivery of chemotherapeutic agents. Long circulating doxorubicin (Dox) in porphyrin-phospholipid (PoP) liposomes (LC-Dox-PoP) has previously been developed as an effective chemophototherapy agent. In the present study, we observed that in mice, LC-Dox-PoP showed enhanced accumulation in human pancreatic tumor xenografts even with suboptimal light doses, as assessed by fluorometric analysis of tissue homogenates and microscopic imaging of Dox and PoP in tumor slices. A second laser treatment, at a time point in which tumors had greater drug accumulation as a result of the first laser treatment, induced potent tumor ablation. Efficacy studies were carried out in two human pancreatic cancer subcutaneous mouse tumor models; MIA PaCa-2 or low-passage patient derived pancreatic cancer xenografts. A single treatment of 3 mg/kg LC-Dox-PoP and an initial 150 J/cm2 laser treatment 1 h after drug administration, followed by second laser treatment of 50 J/cm2 8 h after drug administration, was more effective than a single laser treatment of 200 J/cm2 at either of those time points. Thus, this study presents proof-of-principle and rationale for using two discrete laser treatments to enhance the efficacy of chemophototherapy.
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Yoo JD, Bae SM, Seo J, Jeon IS, Vadevoo SMP, Kim SY, Kim IS, Lee B, Kim S. Designed ferritin nanocages displaying trimeric TRAIL and tumor-targeting peptides confer superior anti-tumor efficacy. Sci Rep 2020; 10:19997. [PMID: 33203916 PMCID: PMC7672110 DOI: 10.1038/s41598-020-77095-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 11/05/2020] [Indexed: 12/15/2022] Open
Abstract
TRAIL is considered a promising target for cancer therapy because it mediates activation of the extrinsic apoptosis pathway in a tumor-specific manner by binding to and trimerizing its functional receptors, DR4 or DR5. Although recombinant human TRAIL has shown high potency and specificity for killing cancer cells in preclinical studies, it has failed in multiple clinical trials for several reasons, including a very short half-life mainly caused by instability of the monomeric form of TRAIL and rapid renal clearance of the off-targeted TRAIL. To overcome such obstacles, we developed a TRAIL-active trimer nanocage (TRAIL-ATNC) that presents the TRAIL ligand in its trimer-like conformation by connecting it to a triple helix sequence that links to the threefold axis of the ferritin nanocage. We also ligated the tumor-targeting peptide, IL4rP, to TRAIL-ATNC to enhance tumor targeting. The developed TRAIL-ATNCIL4rP showed enhanced agonistic activity compared with monomeric TRAIL. The in vivo serum half-life of TRAIL-ATNCIL4rP was ~ 16-times longer than that of native TRAIL. As a consequence of these properties, TRAIL-ATNCIL4rP exhibited efficacy as an anti-tumor agent in vivo against xenograft breast cancer as well as orthotopic pancreatic cancer models, highlighting the promise of this system for development as novel therapeutics against cancer.
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Affiliation(s)
- Jae Do Yoo
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea
| | - Sang Mun Bae
- PrismCDX, Inc., 593-16, Dongtangiheung-ro, Hwaseong-si, Gyeonggi-do, 18469, Republic of Korea
| | - Junyoung Seo
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea
| | - In Seon Jeon
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea
| | - Sri Murugan Poongkavithai Vadevoo
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea
| | - Sang-Yeob Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 138-736, Republic of Korea
- Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - In-San Kim
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea
| | - Byungheon Lee
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea
| | - Soyoun Kim
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea.
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9
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Wang J, Chan DKW, Sen A, Ma WW, Straubinger RM. Tumor Priming by SMO Inhibition Enhances Antibody Delivery and Efficacy in a Pancreatic Ductal Adenocarcinoma Model. Mol Cancer Ther 2019; 18:2074-2084. [PMID: 31363010 DOI: 10.1158/1535-7163.mct-18-0354] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 09/12/2018] [Accepted: 07/25/2019] [Indexed: 01/04/2023]
Abstract
Despite frequent overexpression of numerous growth factor receptors by pancreatic ductal adenocarcinomas (PDAC), such as EGFR, therapeutic antibodies have not proven effective. Desmoplasia, hypovascularity, and hypoperfusion create a functional drug delivery barrier that contributes to treatment resistance. Drug combinations that target tumor/stroma interactions could enhance tumor deposition of therapeutic antibodies, although clinical trials have yet to support this strategy. We hypothesize that macromolecular or nanoparticulate therapeutic agents may best exploit stroma-targeting "tumor priming" strategies, based on the fundamental principles of the Enhanced Permeability and Retention phenomenon. Therefore, we investigated the molecular and pharmacologic tumor responses to NVP-LDE225, an SMO inhibitor of sonic hedgehog signaling (sHHI), of patient-derived xenograft models that recapitulate the desmoplasia and drug delivery barrier properties of PDAC. Short-term sHHI exposure mediated dose- and time-dependent changes in tumor microvessel patency, extracellular matrix architecture, and interstitial pressure, which waned with prolonged sHHI exposure, and increased nanoparticulate permeability probe deposition in multiple PDAC patient-derived xenograft isolates. During sHHI-mediated priming, deposition and intratumor distribution of both a nontargeted mAb and a mAb targeting EGFR, cetuximab, were enhanced. Sequencing the sHH inhibitor with cetuximab administration resulted in marked tumor growth inhibition compared with cetuximab alone. These studies suggest that PDAC drug delivery barriers confound efforts to employ mAb against targets in PDAC, and that short-term, intermittent exposure to stromal modulators can increase tumor cell exposure to therapeutic antibodies, improving their efficacy, and potentially minimize adverse effects that may accompany longer-term, continuous sHHI treatment.
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Affiliation(s)
- Jun Wang
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York
| | - Darren K W Chan
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York
| | - Arindam Sen
- Department of Physiology and Biophysics, University at Buffalo, State University of New York, Buffalo, New York.,Department of Cell Stress Biochemistry and Biophysics, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Wen Wee Ma
- Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York. .,Department of Cell Stress Biochemistry and Biophysics, Roswell Park Comprehensive Cancer Center, Buffalo, New York.,Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, New York
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10
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Luo D, Carter KA, Molins EAG, Straubinger NL, Geng J, Shao S, Jusko WJ, Straubinger RM, Lovell JF. Pharmacokinetics and pharmacodynamics of liposomal chemophototherapy with short drug-light intervals. J Control Release 2019; 297:39-47. [PMID: 30684512 PMCID: PMC6399029 DOI: 10.1016/j.jconrel.2019.01.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 11/18/2018] [Accepted: 01/22/2019] [Indexed: 12/12/2022]
Abstract
Chemophototherapy (CPT) merges photodynamic therapy with chemotherapy and can substantially enhance drug delivery. Using a singular liposomal formulation for CPT, we describe a semi-mechanistic pharmacokinetic-pharmacodynamic (PK/PD) model to investigate observed antitumor effects. Long-circulating, sterically-stabilized liposomes loaded with doxorubicin (Dox) stably incorporate small amounts of a porphyrin-phospholipid (PoP) photosensitizer in the bilayer. These were administered intravenously to mice bearing low-passage, patient-derived pancreatic cancer xenografts (PDX). Dox PK was described with a two-compartment model and tumor drug disposition kinetics were modeled with first-order influx and efflux rates. Tumor irradiation with 665 nm laser light (200 J/cm2) 1 h after liposome administration increased tumor vascular permeabilization and drug accumulation, which was accounted for in the PK/PD model with increased tumor influx and efflux rates by approximately 12- and 4- fold, respectively. This modeling approach provided an overall 7-fold increase in Dox area under the curve in the tumor, matching experimental data (7.4-fold). A signal transduction model based on nonlinear direct cell killing accounted for observed tumor growth patterns. This PK/PD model adequately describes the CPT anti-PDX tumor response based on enhanced drug delivery at the short drug-light interval used.
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Affiliation(s)
- Dandan Luo
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Kevin A Carter
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Emilie A G Molins
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Ninfa L Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Jumin Geng
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Shuai Shao
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - William J Jusko
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA.
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11
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Spano C, Grisendi G, Golinelli G, Rossignoli F, Prapa M, Bestagno M, Candini O, Petrachi T, Recchia A, Miselli F, Rovesti G, Orsi G, Maiorana A, Manni P, Veronesi E, Piccinno MS, Murgia A, Pinelli M, Horwitz EM, Cascinu S, Conte P, Dominici M. Soluble TRAIL Armed Human MSC As Gene Therapy For Pancreatic Cancer. Sci Rep 2019; 9:1788. [PMID: 30742129 PMCID: PMC6370785 DOI: 10.1038/s41598-018-37433-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/06/2018] [Indexed: 12/22/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is still one of the most aggressive adult cancers with an unacceptable prognosis. For this reason novel therapies accounting for PDAC peculiarities, such as the relevant stromal reaction, are urgently needed. Here adipose mesenchymal stromal/stem cells (AD-MSC) have been armed to constantly release a soluble trimeric and multimeric variant of the known anti-cancer TNF-related apoptosis-inducing ligand (sTRAIL). This cancer gene therapy strategy was in vitro challenged demonstrating that sTRAIL was thermally stable and able to induce apoptosis in the PDAC lines BxPC-3, MIA PaCa-2 and against primary PDAC cells. sTRAIL released by AD-MSC relocated into the tumor stroma was able to significantly counteract tumor growth in vivo with a significant reduction in tumor size, in cytokeratin-7+ cells and by an anti-angiogenic effect. In parallel, histology on PDAC specimens form patients (n = 19) was performed to investigate the levels of TRAIL DR4, DR5 and OPG receptors generating promising insights on the possible clinical translation of our approach. These results indicate that adipose MSC can very efficiently vehicle a novel TRAIL variant opening unexplored opportunities for PDAC treatment.
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Affiliation(s)
- Carlotta Spano
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy.,Rigenerand srl, Medolla, Modena, Italy
| | - Giulia Grisendi
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy.,Rigenerand srl, Medolla, Modena, Italy
| | - Giulia Golinelli
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Filippo Rossignoli
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Malvina Prapa
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Marco Bestagno
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Olivia Candini
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy.,Rigenerand srl, Medolla, Modena, Italy
| | | | - Alessandra Recchia
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Miselli
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Giulia Rovesti
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Giulia Orsi
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Antonino Maiorana
- Department of Diagnostic and Clinical Medicine and of Public Health, Institute of Pathology, University of Modena and Reggio Emilia, Modena, Italy
| | - Paola Manni
- Department of Diagnostic and Clinical Medicine and of Public Health, Institute of Pathology, University of Modena and Reggio Emilia, Modena, Italy
| | - Elena Veronesi
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy.,Technopole of Mirandola TPM, Mirandola, Modena, Italy
| | | | - Alba Murgia
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Massimo Pinelli
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Edwin M Horwitz
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta and Emory University Department of Pediatrics, Atlanta, GA, USA
| | - Stefano Cascinu
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Pierfranco Conte
- Department of Surgery, Oncology and Gastroenerology University of Padova, Istituto Oncologico Veneto IRCCS, Padova, Italy
| | - Massimo Dominici
- Division of Oncology, Department of Medical and Surgical Sciences for Children & Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy. .,Rigenerand srl, Medolla, Modena, Italy. .,Technopole of Mirandola TPM, Mirandola, Modena, Italy.
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12
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An ABCG2 non-substrate anticancer agent FL118 targets drug-resistant cancer stem-like cells and overcomes treatment resistance of human pancreatic cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:240. [PMID: 30285798 PMCID: PMC6169080 DOI: 10.1186/s13046-018-0899-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 08/31/2018] [Indexed: 01/05/2023]
Abstract
Background Pancreatic cancer is a deadly disease with a very low 5-year patient survival rate of 6–8%. The major challenges of eliminating pancreatic cancer are treatment resistance and stromal barriers to optimal drug access within the tumor. Therefore, effective molecular targeting drugs with high intra-tumor access and retention are urgently needed for managing this devastating disease in the clinic. Methods This study has used the following in vitro and in vivo techniques for the investigation of exceptional anticancer drug FL118’s efficacy in treatment of resistant pancreatic cancer: cell culture; immunoblotting analysis to test protein expression; DNA sub-G1 flow cytometry analyses to test cell death; MTT assay to test cell viability; pancreatic cancer stem cell assays (fluorescence microscopy tracing; matrigel assay; CD44-positive cell colony formation assay); human luciferase-labeled pancreatic tumor orthotopic animal model in vivo imaging; pancreatic cancer patient-derived xenograft (PDX) animal models; and toxicology studies with immune-competent BALB/cj mice and beagle dogs. Results Our studies found that FL118 alone preferentially killed cisplatin-resistant cancer cells, while a combination of FL118 with cisplatin synergistically killed resistant pancreatic cancer cells and reduced spheroid formation of treatment-resistant pancreatic cancer stem-like cells. Furthermore, using in vivo-imaging, we found that FL118 in combination with cisplatin strongly inhibited both drug-resistant pancreatic xenograft tumor growth and metastasis. In PDX model, we demonstrated that FL118 alone effectively eliminated PDX tumors, while FL118 in combination with gemcitabine eliminated PDX tumors that showed relative resistance (less sensitivity) to treatment with FL118. These FL118 efficacy results are consistent with our molecular-targeting data showing that FL118 inhibited the expression of multiple antiapoptotic proteins (survivin, Mcl-1, XIAP, cIAP2) and ERCC6, a critical regulator of DNA repair, in treatment-resistant pancreatic stem-like cancer cells. Furthermore, FL118 toxicity studies in BALB/cj mice and beagle dogs indicated that FL118 exhibits favorable hematopoietic and biochemical toxicities. Conclusion Together, our studies suggest that FL118 is a promising anticancer drug for further clinical development to effectively treat drug-resistant pancreatic cancer alone or in combination with other pancreatic cancer chemotherapeutic drugs.
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13
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Natural product pectolinarigenin inhibits osteosarcoma growth and metastasis via SHP-1-mediated STAT3 signaling inhibition. Cell Death Dis 2016; 7:e2421. [PMID: 27735939 PMCID: PMC5133974 DOI: 10.1038/cddis.2016.305] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/24/2016] [Accepted: 08/26/2016] [Indexed: 12/22/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) has important roles in cancer aggressiveness and has been confirmed as an attractive target for cancer therapy. In this study, we used a dual-luciferase assay to identify that pectolinarigenin inhibited STAT3 activity. Further studies showed pectolinarigenin inhibited constitutive and interleukin-6-induced STAT3 signaling, diminished the accumulation of STAT3 in the nucleus and blocked STAT3 DNA-binding activity in osteosarcoma cells. Mechanism investigations indicated that pectolinarigenin disturbed the STAT3/DNA methyltransferase 1/HDAC1 histone deacetylase 1 complex formation in the promoter region of SHP-1, which reversely mediates STAT3 signaling, leading to the upregulation of SHP-1 expression in osteosarcoma. We also found pectolinarigenin significantly suppressed osteosarcoma cell proliferation, induced apoptosis and reduced the level of STAT3 downstream proteins cyclin D1, Survivin, B-cell lymphoma 2 (Bcl-2), B-cell lymphoma extra-large (Bcl-xl) and myeloid cell leukemia 1 (Mcl-1). In addition, pectolinarigenin inhibited migration, invasion and reserved epithelial–mesenchymal transition (EMT) phenotype in osteosarcoma cells. In spontaneous and patient-derived xenograft models of osteosarcoma, we identified administration (intraperitoneal) of pectolinarigenin (20 mg/kg/2 days and 50 mg/kg/2 days) blocked STAT3 activation and impaired tumor growth and metastasis with superior pharmacodynamic properties. Taken together, our findings demonstrate that pectolinarigenin may be a candidate for osteosarcoma intervention linked to its STAT3 signaling inhibitory activity.
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14
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Eng JWL, Mace TA, Sharma R, Twum DYF, Peng P, Gibbs JF, Pitoniak R, Reed CB, Abrams SI, Repasky EA, Hylander BL. Pancreatic cancer stem cells in patient pancreatic xenografts are sensitive to drozitumab, an agonistic antibody against DR5. J Immunother Cancer 2016; 4:33. [PMID: 27330806 PMCID: PMC4915140 DOI: 10.1186/s40425-016-0136-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 05/16/2016] [Indexed: 02/07/2023] Open
Abstract
Background Therapeutic resistance and tumor recurrence are two major hurdles in the treatment of pancreatic ductal adenocarcinoma. Recent findings suggest that both of these attributes are associated with a small subset of pancreatic tumor initiating cancer stem cells (CSCs). Here, we demonstrate that drozitumab, a human agonistic monoclonal antibody which binds the death receptor DR5, selectively eliminates CSCs, resulting in tumor growth inhibition and even regression of pancreatic tumors. Methods To examine the efficacy of drozitumab against pancreatic CSCs, we treated patient-derived pancreatic tumor xenografts (PDX) in immunocompromised SCID mice and evaluated tumor control. To assess apoptosis following drozitumab treatment, we identified the CSCs as CD24+, CD44+, and EpCAM+ by FACS analysis, and measured in vivo and in vitro levels of cleaved caspase-3. Lastly, in vitro evaluation of DR5 re-expression was performed using isolated patient pancreatic cancer xenograft cells along with the cell line, Panc-1. After treatment with drozitumab, the remaining DR5- cells were assessed by FACS analysis for DR5 expression at the cell surface at 8, 24 and 48 h post-treatment. All in vivo growth data was analyzed by 2-way Anova, incidence data was analyzed using Mantel-Cox, and in vitro studies statistics were performed with a t-test. Results We find that while 75–100 % of CSCs express DR5, only 25 % of bulk tumor cells express the death receptors at any one time. Consequently, drozitumab treatment of SCID mice bearing PDX kills higher percentages of CSCs than bulk tumor cells. Additionally, SCID mice implanted with isolated CSCs and then immediately treated with drozitumab fail to ever develop tumors. In vitro studies demonstrate that while drozitumab treatment reduces the DR5+ cell population, the remaining tumor cells begin to express DR5, suggesting a mechanism by which continuous administration of drozitumab can ultimately result in tumor regression despite the initially low percentage of DR5+ cells. Conclusions Overall, our work reveals that treatment of pancreatic tumors with the drozitumab can lead to long-term tumor control by targeting both bulk cells and CSCs. Electronic supplementary material The online version of this article (doi:10.1186/s40425-016-0136-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jason W-L Eng
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
| | - Thomas A Mace
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA.,Present Address: Division of Medical Oncology, Department Internal Medicine, The Ohio State University, Columbus, OH 43210 USA
| | - Rohit Sharma
- Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, 14263 NY USA.,Present Address: Department of Surgery, Lehigh Valley Physician Group, Allentown, 18103 PA USA
| | - Danielle Y F Twum
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
| | - Peng Peng
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
| | - John F Gibbs
- Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, 14263 NY USA.,Present address: Department of Surgery Chief of Surgical Oncology, Jersey Shore University Medical Center, 1945 State Highway 33, Neptune, NJ 07753 USA
| | - Rosemarie Pitoniak
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
| | - Chelsey B Reed
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
| | - Scott I Abrams
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
| | - Elizabeth A Repasky
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
| | - Bonnie L Hylander
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263 USA
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15
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Miles MA, Shekhar TM, Hall NE, Hawkins CJ. TRAIL causes deletions at the HPRT and TK1 loci of clonogenically competent cells. Mutat Res 2016; 787:15-31. [PMID: 26943263 DOI: 10.1016/j.mrfmmm.2016.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/05/2016] [Accepted: 02/02/2016] [Indexed: 12/22/2022]
Abstract
When chemotherapy and radiotherapy are effective, they function by inducing DNA damage in cancerous cells, which respond by undergoing apoptosis. Some adverse effects can result from collateral destruction of non-cancerous cells, via the same mechanism. Therapy-related cancers, a particularly serious adverse effect of anti-cancer treatments, develop due to oncogenic mutations created in non-cancerous cells by the DNA damaging therapies used to eliminate the original cancer. Physiologically achievable concentrations of direct apoptosis inducing anti-cancer drugs that target Bcl-2 and IAP proteins possess negligible mutagenic activity, however death receptor agonists like TRAIL/Apo2L can provoke mutations in surviving cells, probably via caspase-mediated activation of the nuclease CAD. In this study we compared the types of mutations sustained in the HPRT and TK1 loci of clonogenically competent cells following treatment with TRAIL or the alkylating agent ethyl methanesulfonate (EMS). As expected, the loss-of-function mutations in the HPRT or TK1 loci triggered by exposure to EMS were almost all transitions. In contrast, only a minority of the mutations identified in TRAIL-treated clones lacking HPRT or TK1 activity were substitutions. Almost three quarters of the TRAIL-induced mutations were partial or complete deletions of the HPRT or TK1 genes, consistent with sub-lethal TRAIL treatment provoking double strand breaks, which may be mis-repaired by non-homologous end joining (NHEJ). Mis-repair of double-strand breaks following exposure to chemotherapy drugs has been implicated in the pathogenesis of therapy-related cancers. These data suggest that TRAIL too may provoke oncogenic damage to the genomes of surviving cells.
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Affiliation(s)
- Mark A Miles
- Department of Biochemistry and Genetics, La Trobe University, Bundoora, Victoria, Australia; La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, Australia
| | - Tanmay M Shekhar
- Department of Biochemistry and Genetics, La Trobe University, Bundoora, Victoria, Australia; La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, Australia
| | - Nathan E Hall
- La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, Australia; Life Sciences Computation Centre, Victorian Life Sciences Computation Initiative, Melbourne, Victoria, Australia
| | - Christine J Hawkins
- Department of Biochemistry and Genetics, La Trobe University, Bundoora, Victoria, Australia; La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, Australia.
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16
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Roy Chaudhuri T, Straubinger NL, Pitoniak RF, Hylander BL, Repasky EA, Ma WW, Straubinger RM. Tumor-Priming Smoothened Inhibitor Enhances Deposition and Efficacy of Cytotoxic Nanoparticles in a Pancreatic Cancer Model. Mol Cancer Ther 2015; 15:84-93. [PMID: 26516158 DOI: 10.1158/1535-7163.mct-15-0602] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/01/2015] [Indexed: 12/13/2022]
Abstract
Most pancreatic adenocarcinoma patients present with unresectable disease and benefit little from chemotherapy. Poor tumor perfusion and vascular permeability limit drug deposition. Previous work showed that Smoothened inhibitors of hedgehog signaling (sHHI) promote neovascularization in spontaneous mouse models of pancreatic cancer (PaCA) and enhance tumor permeability to low-molecular weight compounds. Here, we tested the hypothesis that sHHI can enhance tumor deposition and efficacy of drug-containing nanoparticles consisting of 80 to 100 nm sterically-stabilized liposomes (SSL) containing doxorubicin (SSL-DXR). SCID mice bearing low-passage patient-derived PaCA xenografts (PDX) were pretreated p.o. for 10 days with 40 mg/kg/d NVP-LDE225 (erismodegib), followed by i.v. SSL-DXR. Microvessel density, permeability, perfusion, and morphology were compared with untreated controls, as was SSL deposition and therapeutic efficacy. The sHHI alone affected tumor growth minimally, but markedly increased extravasation of nanoparticles into adenocarcinoma cell-enriched regions of the tumor. Immunostaining showed that sHHI treatment decreased pericyte coverage (α-SMA(+)) of CD31(+) vascular endothelium structures, and increased the abundance of endothelium-poor (CD31(-)) basement membrane structures (collagen IV(+)), suggesting increased immature microvessels. SSL-DXR (15 mg/kg) administered after sHHI pretreatment arrested tumor volume progression and decreased tumor perfusion/permeability, suggesting an initial vascular pruning response. Compared with controls, one cycle of 10-day sHHI pretreatment followed by 6 mg/kg SSL-DXR doubled median tumor progression time. Three cycles of treatment with sHHI and SSL-DXR, with a 10-day between-cycle drug holiday, nearly tripled median tumor progression time. Based upon these data, short-term sHHI treatment sequenced with nanoparticulate drug carriers constitutes a potential strategy to enhance efficacy of pancreatic cancer therapy.
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Affiliation(s)
- Tista Roy Chaudhuri
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York. Department of Molecular and Cellular Biophysics and Biochemistry, Roswell Park Cancer Institute, Buffalo, New York
| | - Ninfa L Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York
| | | | - Bonnie L Hylander
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, New York
| | | | - Wen Wee Ma
- Department of Medicine, Roswell Park Cancer Institute, Buffalo, New York
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, New York. Department of Molecular and Cellular Biophysics and Biochemistry, Roswell Park Cancer Institute, Buffalo, New York. Department of Cancer Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, New York. New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, New York.
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17
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Activation of surrogate death receptor signaling triggers peroxynitrite-dependent execution of cisplatin-resistant cancer cells. Cell Death Dis 2015; 6:e1926. [PMID: 26492363 PMCID: PMC4632318 DOI: 10.1038/cddis.2015.299] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 09/14/2015] [Accepted: 09/15/2015] [Indexed: 01/03/2023]
Abstract
Platinum-based drugs remain as the cornerstone of cancer chemotherapy; however, development of multidrug resistance presents a therapeutic challenge. This study aims at understanding the molecular mechanisms underlying resistance to cisplatin and unraveling surrogate signaling networks that could revert sensitivity to apoptosis stimuli. We made use of three different sets of cell lines, A549 and H2030 non-small-cell lung cancer (NSCLC) and A2780 ovarian cancer cells and their cisplatin-resistant variants. Here we report that cisplatin-resistant cell lines displayed a multidrug-resistant phenotype. Changes in mitochondrial metabolism and defective mitochondrial signaling were unraveled in the resistant cells. More interestingly, a marked increase in sensitivity of the resistant cells to death receptor-induced apoptosis, in particular TRAIL (TNF-related apoptosis-inducing ligand)-mediated execution, was observed. Although this was not associated with an increase in gene transcription, a significant increase in the localization of TRAIL death receptor, DR4, to the lipid raft subdomains of plasma membrane was detected in the resistant variants. Furthermore, exposure of cisplatin-resistant cells to TRAIL resulted in upregulation of inducible nitric oxide synthase (iNOS) and increase in nitric oxide (NO) production that triggered the generation of peroxynitrite (ONOO−). Scavenging ONOO− rescued cells from TRAIL-induced apoptosis, thereby suggesting a critical role of ONOO− in TRAIL-induced execution of cisplatin-resistant cells. Notably, preincubation of cells with TRAIL restored sensitivity of resistant cells to cisplatin. These data provide compelling evidence for employing strategies to trigger death receptor signaling as a second-line treatment for cisplatin-resistant cancers.
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18
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Miyashita T, Miki K, Kamigaki T, Makino I, Nakagawara H, Tajima H, Takamura H, Kitagawa H, Fushida S, Ahmed AK, Duncan MD, Harmon JW, Ohta T. Low-dose gemcitabine induces major histocompatibility complex class I-related chain A/B expression and enhances an antitumor innate immune response in pancreatic cancer. Clin Exp Med 2015; 17:19-31. [PMID: 26449615 DOI: 10.1007/s10238-015-0394-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 09/12/2015] [Indexed: 02/06/2023]
Abstract
We investigated the effect of gemcitabine (GEM), a key drug for pancreatic cancer treatment, on the expression of cell surface MICA/B in pancreatic cancer cells and resulting cytotoxicity of γδ T cells. We assessed the effect of GEM on the upregulation of cell surface MICA/B expression by flow cytometry, utilizing six pancreatic cancer cell lines. MICA and CD16 expressions from resected pancreatic cancer patient specimens, which received neoadjuvant chemotherapy (NAC) with GEM, were analyzed by immunohistochemistry. GEM could increase MICA/B expression on cell surface in pancreatic cancer cell lines (in 2 of 6 cell lines). This effect was most effectively at concentration not affecting cell growth of GEM (0.001 μM), because MICA/B negative population was appeared at concentration at cytostatic and cytotoxic effect to cell growth (0.1 and 10 μM). The cytotoxic activity of γδ T cells against PANC-1 was detected and functions through interactions between NKG2D and MICA/B. However, the enhancement of NKG2D-dependent cytotoxicity with increased MICA/B expression, by GEM treatment, was not observed. In addition, soluble MIC molecules were released from pancreatic cancer cell lines in culture supernatant with GEM treatment. Immunohistochemical staining demonstrated that MICA expression in tumor cells and CD16 positive cells surrounding tumors were significantly higher in the NAC group compared to that of the control group. There was a significant correlation between NAC and MICA expression, as well as NAC and CD16 positive cell expression. The present results indicate that low-dose GEM-induced MICA/B expression enhances innate immune function rather than cytotoxicity in pancreatic cancer. In addition, our result suggests that the inhibition of cleavage and release of MIC molecules from the tumor surface could potentially improve NKG2D-dependent cytotoxicity.
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Affiliation(s)
- Tomoharu Miyashita
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Kenji Miki
- Medinet Medical Institute, MEDINET Co., Ltd., 2-2-8 Tamagawadai, Setagaya-ku, Tokyo, 158-0096, Japan
| | - Takashi Kamigaki
- Medinet Medical Institute, MEDINET Co., Ltd., 2-2-8 Tamagawadai, Setagaya-ku, Tokyo, 158-0096, Japan
| | - Isamu Makino
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hisatoshi Nakagawara
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hidehiro Tajima
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hiroyuki Takamura
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hirohisa Kitagawa
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Sachio Fushida
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Ali K Ahmed
- Department of Surgery, Johns Hopkins University School of Medicine, 4940 Eastern Avenue, Baltimore, MD, 21224, USA
| | - Mark D Duncan
- Department of Surgery, Johns Hopkins University School of Medicine, 4940 Eastern Avenue, Baltimore, MD, 21224, USA
| | - John W Harmon
- Department of Surgery, Johns Hopkins University School of Medicine, 4940 Eastern Avenue, Baltimore, MD, 21224, USA
| | - Tetsuo Ohta
- Department of Gastroenterological Surgery, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
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19
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Hylander BL, Sen A, Beachy SH, Pitoniak R, Ullas S, Gibbs JF, Qiu J, Prey JD, Fetterly GJ, Repasky EA. Tumor priming by Apo2L/TRAIL reduces interstitial fluid pressure and enhances efficacy of liposomal gemcitabine in a patient derived xenograft tumor model. J Control Release 2015; 217:160-9. [PMID: 26342663 DOI: 10.1016/j.jconrel.2015.08.047] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/10/2015] [Accepted: 08/24/2015] [Indexed: 12/20/2022]
Abstract
Interstitial fluid pressure (IFP) is elevated in tumors and high IFP, a negative cancer prognosticator, is known to limit the uptake and efficacy of anti-tumor therapeutics. Approaches that alter the tumor microenvironment and enhance uptake of therapeutics are collectively referred to as tumor "priming". Here we show that the cytotoxic biological therapy Apo2L/TRAIL can prime the tumor microenvironment and significantly lower IFP in three different human tumor xenograft models (Colo205, MiaPaca-2 and a patient gastrointestinal adenocarcinoma tumor xenograft). We found that a single dose of Apo2L/TRAIL resulted in a wave of apoptosis which reached a maximum at 8h post-treatment. Apoptotic debris subsequently disappeared concurrent with an increase in macrophage infiltration. By 24h post-treatment, treated tumors appeared less condensed with widening of the stromal areas which increased at 48 and 72h. Analysis of tumor vasculature demonstrated a significant increase in overall vessel size at 48 and 72h although the number of vessels did not change. Notably, IFP was significantly reduced in these tumors by 48h after Apo2L/TRAIL treatment. Administration of gemcitabine at this time resulted in increased tumor uptake of both gemcitabine and liposomal gemcitabine and significantly improved anti-tumor efficacy of liposomal gemcitabine. These results suggest that Apo2L/TRAIL has a potential as a tumor priming agent and provides a rationale for developing a sequencing schema for combination therapy such that an initial dose of Apo2L/TRAIL would precede administration of gemcitabine or other therapies.
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Affiliation(s)
- Bonnie L Hylander
- Dept. of Immunology, Roswell Park Cancer Institute, Buffalo, NY, USA.
| | - Arindam Sen
- Dept. of Immunology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Sarah H Beachy
- Dept. of Cell Stress, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Rose Pitoniak
- Dept. of Immunology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Soumya Ullas
- Dept. of Cell Stress, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - John F Gibbs
- Dept. of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Jingxin Qiu
- Dept. of Pathology, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Joshua D Prey
- Dept. of Medicine, Roswell Park Cancer Institute, Buffalo, NY, USA
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20
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Zhou H, Qian W, Uckun FM, Wang L, Wang YA, Chen H, Kooby D, Yu Q, Lipowska M, Staley CA, Mao H, Yang L. IGF1 Receptor Targeted Theranostic Nanoparticles for Targeted and Image-Guided Therapy of Pancreatic Cancer. ACS NANO 2015; 9:7976-91. [PMID: 26242412 PMCID: PMC4908958 DOI: 10.1021/acsnano.5b01288] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Overcoming resistance to chemotherapy is a major and unmet medical challenge in the treatment of pancreatic cancer. Poor drug delivery due to stromal barriers in the tumor microenvironment and aggressive tumor biology are additional impediments toward a more successful treatment of pancreatic cancer. In attempts to address these challenges, we developed IGF1 receptor (IGF1R)-directed, multifunctional theranostic nanoparticles for targeted delivery of therapeutic agents into IGF1R-expressing drug-resistant tumor cells and tumor-associated stromal cells. These nanoparticles were prepared by conjugating recombinant human IGF1 to magnetic iron oxide nanoparticles (IONPs) carrying the anthracycline doxorubicin (Dox) as the chemotherapeutic payload. Intravenously administered IGF1-IONPs exhibited excellent tumor targeting and penetration in an orthotopic patient-derived xenograft (PDX) model of pancreatic cancer featuring enriched tumor stroma and heterogeneous cancer cells. IGF1R-targeted therapy using the theranostic IGF1-IONP-Dox significantly inhibited the growth of pancreatic PDX tumors. The effects of the intratumoral nanoparticle delivery and therapeutic responses in the orthotopic pancreatic PDX tumors could be detected by magnetic resonance imaging (MRI) with IONP-induced contrasts. Histological analysis showed that IGF1R-targeted delivery of Dox significantly inhibited cell proliferation and induced apoptotic cell death of pancreatic cancer cells. Therefore, further development of IGF1R-targeted theranostic IONPs and MRI-guided cancer therapy as a precision nanomedicine may provide the basis for more effective treatment of pancreatic cancer.
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Affiliation(s)
- Hongyu Zhou
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Weiping Qian
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Fatih M. Uckun
- University of Southern California Norris Comprehensive Cancer Center, Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Los Angeles, California 90027, United States
| | - Liya Wang
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Y. Andrew Wang
- Ocean Nanotech, LLC, San Diego, California 92126, United States
| | - Hongyu Chen
- Ocean Nanotech, LLC, San Diego, California 92126, United States
| | - David Kooby
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Qian Yu
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Malgorzata Lipowska
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Charles A. Staley
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Hui Mao
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Lily Yang
- Department of Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Departments of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Address correspondence to .
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21
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Enhancing the antitumor efficacy of a cell-surface death ligand by covalent membrane display. Proc Natl Acad Sci U S A 2015; 112:5679-84. [PMID: 25902490 DOI: 10.1073/pnas.1418962112] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
TNF superfamily death ligands are expressed on the surface of immune cells and can trigger apoptosis in susceptible cancer cells by engaging cognate death receptors. A recombinant soluble protein comprising the ectodomain of Apo2 ligand/TNF-related apoptosis-inducing ligand (Apo2L/TRAIL) has shown remarkable preclinical anticancer activity but lacked broad efficacy in patients, possibly owing to insufficient exposure or potency. We observed that antibody cross-linking substantially enhanced cytotoxicity of soluble Apo2L/TRAIL against diverse cancer cell lines. Presentation of the ligand on glass-supported lipid bilayers enhanced its ability to drive receptor microclustering and apoptotic signaling. Furthermore, covalent surface attachment of Apo2L/TRAIL onto liposomes--synthetic lipid-bilayer nanospheres--similarly augmented activity. In vivo, liposome-displayed Apo2L/TRAIL achieved markedly better exposure and antitumor activity. Thus, covalent synthetic-membrane attachment of a cell-surface ligand enhances efficacy, increasing therapeutic potential. These findings have translational implications for liposomal approaches as well as for Apo2L/TRAIL and other clinically relevant TNF ligands.
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22
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Dao P, Smith N, Scott-Algara D, Garbay C, Herbeuval J, Chen H. Restoration of TRAIL-induced apoptosis in resistant human pancreatic cancer cells by a novel FAK inhibitor, PH11. Cancer Lett 2015; 360:48-59. [DOI: 10.1016/j.canlet.2015.02.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 01/13/2015] [Accepted: 02/03/2015] [Indexed: 11/27/2022]
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23
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Housing temperature-induced stress drives therapeutic resistance in murine tumour models through β2-adrenergic receptor activation. Nat Commun 2015; 6:6426. [PMID: 25756236 DOI: 10.1038/ncomms7426] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 01/28/2015] [Indexed: 01/04/2023] Open
Abstract
Cancer research relies heavily on murine models for evaluating the anti-tumour efficacy of therapies. Here we show that the sensitivity of several pancreatic tumour models to cytotoxic therapies is significantly increased when mice are housed at a thermoneutral ambient temperature of 30 °C compared with the standard temperature of 22 °C. Further, we find that baseline levels of norepinephrine as well as the levels of several anti-apoptotic molecules are elevated in tumours from mice housed at 22 °C. The sensitivity of tumours to cytotoxic therapies is also enhanced by administering a β-adrenergic receptor antagonist to mice housed at 22 °C. These data demonstrate that standard housing causes a degree of cold stress sufficient to impact the signalling pathways related to tumour-cell survival and affect the outcome of pre-clinical experiments. Furthermore, these data highlight the significant role of host physiological factors in regulating the sensitivity of tumours to therapy.
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24
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Synergistic Antitumor Activity of Recombinant Human Apo2L/Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL) in Combination with Carboplatin and Pemetrexed in Malignant Pleural Mesothelioma. J Thorac Oncol 2014; 9:1008-1017. [DOI: 10.1097/jto.0000000000000198] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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25
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Cancer therapeutics: Targeting the apoptotic pathway. Crit Rev Oncol Hematol 2014; 90:200-19. [DOI: 10.1016/j.critrevonc.2013.12.012] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 12/05/2013] [Accepted: 12/12/2013] [Indexed: 01/20/2023] Open
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Abstract
OBJECTIVES We have previously demonstrated activity of Apo2L/TRAIL against patient pancreatic tumor xenografts. Here, we have examined the influence of the tumor implantation site on therapeutic response of orthotopic tumors and their metastases to Apo2L/TRAIL. METHODS Sensitivity of 6 patient pancreatic tumor xenografts to Apo2L/TRAIL was determined in a subcutaneous model. To compare the response of orthotopic tumors, cells from subcutaneous xenografts were injected into the pancreas. Tumor growth was confirmed by histological examination of selected mice, and then treatment was started. When all control mice developed externally palpable tumors, the experiment was terminated, and pancreatic weights compared between control and treated groups. Magnetic resonance imaging was used to quantitate the response of orthotopic and metastatic tumors. RESULTS The sensitivity to Apo2L/TRAIL observed in subcutaneous tumors was maintained in orthotopic tumors. Metastatic spread was observed with orthotopic tumor implantation. In an orthotopic model of a sensitive tumor, primary and metastatic tumor burden was significantly reduced, and median survival significantly extended by Apo2L/TRAIL therapy. CONCLUSIONS Our data provide evidence that the site of tumor engraftment does not alter the inherent sensitivity of patient xenografts to Apo2L/TRAIL, and these results highlight the potential of Apo2L/TRAIL therapy against primary and metastatic pancreatic cancer.
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Holland PM. Death receptor agonist therapies for cancer, which is the right TRAIL? Cytokine Growth Factor Rev 2013; 25:185-93. [PMID: 24418173 DOI: 10.1016/j.cytogfr.2013.12.009] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 12/15/2013] [Indexed: 01/28/2023]
Abstract
The activation of cell-surface death receptors represents an attractive therapeutic strategy to promote apoptosis of tumor cells. Several investigational therapeutics that target this extrinsic pathway, including recombinant human Apo2L/TRAIL and monoclonal agonist antibodies directed against death receptors-4 (DR4) or -5 (DR5), have been evaluated in the clinic. Although Phase 1/1b studies provided encouraging preliminary results, findings from randomized Phase 2 studies failed to demonstrate significant clinical benefit. This has raised multiple questions as to why pre-clinical data were not predictive of clinical response. Results from clinical studies and insight into why current agents have failed to yield robust responses are discussed. In addition, new strategies for the development of next generation death receptor agonists are reviewed.
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Affiliation(s)
- Pamela M Holland
- Therapeutic Innovation Unit, Amgen Inc., 360 Binney Street, Cambridge, MA 02142, United States.
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28
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Zhang H, Hylander BL, LeVea C, Repasky EA, Straubinger RM, Adjei AA, Ma WW. Enhanced FGFR signalling predisposes pancreatic cancer to the effect of a potent FGFR inhibitor in preclinical models. Br J Cancer 2013; 110:320-9. [PMID: 24327018 PMCID: PMC3899776 DOI: 10.1038/bjc.2013.754] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 10/22/2013] [Accepted: 10/29/2013] [Indexed: 11/20/2022] Open
Abstract
Background: Fibroblast growth factor receptor (FGFR) signalling has been implicated in pancreas carcinogenesis. We investigated the effect of FGFR inhibition in pancreatic cancer in complementary cancer models derived from cell lines and patient-derived primary tumour explants. Methods: The effects of FGFR signalling inhibition in pancreatic cancer were evaluated using anti-FRS2 shRNA and dovitinib. Pancreatic cancers with varying sensitivity to dovitinib were evaluated to determine potential predictive biomarkers of efficacy. Primary pancreatic explants with opposite extreme of biomarker expression were selected from 13 tumours for in vivo dovitinib treatment. Results: Treatment with anti-FRS2 shRNA induced significant in vitro cell kill in pancreatic cancer cells. Dovitinib treatment achieved similar effects and was mediated by Akt/Mcl-1 signalling in sensitive cells. Dovitinib efficacy correlated with FRS2 phosphorylation status, FGFR2 mRNA level and FGFR2 IIIb expression but not phosphorylation status of VEGFR2 and PDGFRβ. Using FGFR2 mRNA level, a proof-of-concept study using primary pancreatic cancer explants correctly identified the tumours' sensitivity to dovitinib. Conclusion: Inhibiting FGFR signalling using shRNA and dovitinib achieved significant anti-cancer cancer effects in pancreatic cancer. The effect was more pronounced in FGFR2 IIIb overexpressing pancreatic cancer that may be dependent on aberrant stimulation by stromal-derived FGF ligands.
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Affiliation(s)
- H Zhang
- Department of Medicine, Roswell Park Cancer Institute, Elm & Carlton streets, Buffalo, NY 14263, USA
| | - B L Hylander
- Department of Immunity, Roswell Park Cancer Institute, Elm & Carlton streets, Buffalo, NY 14263, USA
| | - C LeVea
- Department of Medicine, Roswell Park Cancer Institute, Elm & Carlton streets, Buffalo, NY 14263, USA
| | - E A Repasky
- Department of Immunity, Roswell Park Cancer Institute, Elm & Carlton streets, Buffalo, NY 14263, USA
| | - R M Straubinger
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - A A Adjei
- Department of Medicine, Roswell Park Cancer Institute, Elm & Carlton streets, Buffalo, NY 14263, USA
| | - W W Ma
- Department of Medicine, Roswell Park Cancer Institute, Elm & Carlton streets, Buffalo, NY 14263, USA
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Han Y, Park S, Kinyua AW, Andera L, Kim KW, Kim I. Emetine enhances the tumor necrosis factor-related apoptosis-inducing ligand-induced apoptosis of pancreatic cancer cells by downregulation of myeloid cell leukemia sequence-1 protein. Oncol Rep 2013; 31:456-62. [PMID: 24213797 DOI: 10.3892/or.2013.2838] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 10/14/2013] [Indexed: 11/06/2022] Open
Abstract
Although the tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promising cancer therapeutic agent, it shows limited efficacy in human pancreatic cancer cells. Protein synthesis inhibition has been reported to sensitize cancer cells to apoptosis-inducing agents, but the detailed mechanism by which protein synthesis inhibition sensitize cells to TRAIL has not been determined. To investigate the mechanism underlying pancreatic cancer cell resistance to TRAIL, we performed a small scale high-throughput compound screening in AsPC-1 pancreatic cancer cells using a bioactive small molecule library. We identified 8 compounds that reproducibly sensitize AsPC-1 cells to TRAIL-induced apoptosis. One of these compounds, emetine hydrochloride, when combined with subtoxic concentrations of TRAIL, induced massive apoptosis in AsPC-1 and BxPC-3 pancreatic cancer cells. Cell death analysis revealed that the sensitizing effects of emetine were specific to TRAIL. Emetine downregulated the expression of the TRAIL-related anti-apoptotic protein Mcl-1 in a dose- and time-dependent manner. Furthermore, specific knockdown of Mcl-1 using small interfering RNA without emetine treatment sensitized pancreatic cancer cells to TRAIL. Emetine sensitization of pancreatic cancer cells to TRAIL via Mcl-1 was confirmed under hypoxic conditions. Taken together, these findings strongly suggest that Mcl-1 is involved in pancreatic cancer cell resistance to TRAIL, and emetine facilitates the apoptosis of TRAIL-tolerant pancreatic cancer cells by specifically inhibiting Mcl-1 function.
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Affiliation(s)
- Yujeong Han
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 138-736, Republic of Korea
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30
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Histological advantages of the tumor graft: a murine model involving transplantation of human pancreatic cancer tissue fragments. Pancreas 2013; 42:1275-82. [PMID: 24152953 DOI: 10.1097/mpa.0b013e318296f866] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVES Experimental data based on cell line-derived xenograft models (cell xenograft) seldom reproduce the clinical situation, and therefore we demonstrated here the superiority of a murine model involving transplantation of human pancreatic cancer tissue fragments (tumor graft), focusing on the histological features and drug delivery characteristics. METHODS Tumor pieces from 10 pancreatic cancer patients were transplanted into SCID (severe combined immunodeficient) mice. Histological characteristics of tumor grafts, including morphology, desmoplastic reaction, and vascularization, were compared with those of cell xenografts. Drug delivery was evaluated by quantifying the concentrations of injected drug, and the results were compared with its histological features. RESULTS Eight of the 10 transplanted tumors successfully engrafted. Histological comparisons between tumor grafts and cell xenografts revealed the following: the amount of stroma was more (22.9% ± 11.8% vs 10.8% ± 5.4%; P < 0.05), vessel-cancer cell distance was longer (35.3 ± 39.0 vs 3.9 ± 3.1 μm; P < 0.001), and microvessel density was lower (6.8 ± 1.9 vs 10.8 ± 2.1 vessels/0.4 mm(2); P < 0.05) in tumor grafts. Drug concentrations in tumor grafts were lower than those in cell xenografts (3.3 ± 1.2 vs 6.0±0.2 μg/mL; P = 0.003), and the differences were correlated with the histological differences. CONCLUSIONS Pancreatic tumor grafts better reproduce the histological nature of clinical cancer and thus provide a more realistic model that is applicable for pharmacokinetic studies.
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Wang W, Zhang M, Sun W, Yang S, Su Y, Zhang H, Liu C, Li X, Lin L, Kim S, Okunieff P, Zhang Z, Zhang L. Reduction of decoy receptor 3 enhances TRAIL-mediated apoptosis in pancreatic cancer. PLoS One 2013; 8:e74272. [PMID: 24204567 PMCID: PMC3808375 DOI: 10.1371/journal.pone.0074272] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Accepted: 07/29/2013] [Indexed: 01/06/2023] Open
Abstract
Most human pancreatic cancer cells are resistant to tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL)-mediated apoptosis. However, the mechanisms by which pancreatic cancer cells utilize their extracellular molecules to counteract the proapoptotic signaling mediated by the TNF family are largely unknown. In this study, we demonstrate for the first time that DcR3, a secreted decoy receptor that malignant pancreatic cancer cells express at a high level, acts as an extracellular antiapoptotic molecule by binding to TRAIL and counteracting its death-promoting function. The reduction of DcR3 with siRNA unmasked TRAIL and greatly enhanced TRAIL-induced apoptosis. Gemcitabine, a first-line drug for pancreatic cancer, also reduced the level of DcR3. The addition of DcR3 siRNA further enhanced gemcitabine-induced apoptosis. Notably, our in vivo study demonstrated that the therapeutic effect of gemcitabine could be enhanced via further reduction of DcR3, suggesting that downregulation of DcR3 in tumor cells could tip the balance of pancreatic cells towards apoptosis and potentially serve as a new strategy for pancreatic cancer therapy.
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Affiliation(s)
- Wei Wang
- Department of General Surgery, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
- * E-mail: (WW); (LZ)
| | - Mei Zhang
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, United States of America
| | - Weimin Sun
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, United States of America
- Department of Immunology, Second Military Medical College, Shanghai, China
| | - Shanmin Yang
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, United States of America
| | - Ying Su
- Department of General Surgery, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Hengshan Zhang
- Central Laboratory, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Chaomei Liu
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, United States of America
| | - Xinfeng Li
- Department of General Surgery, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Ling Lin
- Department of General Surgery, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Sunghee Kim
- BioPowerTech, Tuscaloosa, Alabama, United States of America
| | - Paul Okunieff
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, United States of America
| | - Zhenhuan Zhang
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, United States of America
| | - Lurong Zhang
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, United States of America
- Central Laboratory, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
- * E-mail: (WW); (LZ)
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Garcia PL, Council LN, Christein JD, Arnoletti JP, Heslin MJ, Gamblin TL, Richardson JH, Bjornsti MA, Yoon KJ. Development and histopathological characterization of tumorgraft models of pancreatic ductal adenocarcinoma. PLoS One 2013; 8:e78183. [PMID: 24194913 PMCID: PMC3806809 DOI: 10.1371/journal.pone.0078183] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 09/09/2013] [Indexed: 12/20/2022] Open
Abstract
Pancreatic cancer is the one of the deadliest of all malignancies. The five year survival rate for patients with this disease is 3-5%. Thus, there is a compelling need for novel therapeutic strategies to improve the clinical outcome for patients with pancreatic cancer. Several groups have demonstrated for other types of solid tumors that early passage human tumor xenograft models can be used to define some genetic and molecular characteristics of specific human tumors. Published studies also suggest that murine tumorgraft models (early passage xenografts derived from direct implantation of primary tumor specimens) may be useful in identifying compounds with efficacy against specific tumor types. Because pancreatic cancer is a fatal disease and few well-characterized model systems are available for translational research, we developed and characterized a panel of pancreatic tumorgraft models for biological evaluation and therapeutic drug testing. Of the 41 primary tumor specimens implanted subcutaneously into mice, 35 produced viable tumorgraft models. We document the fidelity of histological and morphological characteristics and of KRAS mutation status among primary (F0), F1, and F2 tumors for the twenty models that have progressed to the F3 generation. Importantly, our procedures produced a take rate of 85%, higher than any reported in the literature. Primary tumor specimens that failed to produce tumorgrafts were those that either contained <10% tumor cells or that were obtained from significantly smaller primary tumors. In view of the fidelity of characteristics of primary tumor specimens through at least the F2 generation in mice, we propose that these tumorgraft models represent a useful tool for identifying critical characteristics of pancreatic tumors and for evaluating potential therapies.
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Affiliation(s)
- Patrick L. Garcia
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Leona N. Council
- Division of Anatomic Pathology, Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - John D. Christein
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - J. Pablo Arnoletti
- Division of General Surgery, Surgical Oncology, Department of Surgery, University of Alabama at Birmingham, Alabama, United States of America
| | - Marty J. Heslin
- Division of General Surgery, Surgical Oncology, Department of Surgery, University of Alabama at Birmingham, Alabama, United States of America
| | - Tracy L. Gamblin
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Joseph H. Richardson
- Division of General Surgery, Surgical Oncology, Department of Surgery, University of Alabama at Birmingham, Alabama, United States of America
| | - Mary-Ann Bjornsti
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Karina J. Yoon
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
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Bates DJP, Lewis LD. Manipulating the apoptotic pathway: potential therapeutics for cancer patients. Br J Clin Pharmacol 2013; 76:381-95. [PMID: 23782006 PMCID: PMC3769666 DOI: 10.1111/bcp.12193] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 05/20/2013] [Indexed: 12/14/2022] Open
Abstract
This review summarizes the current state of scientific understanding of the apoptosis pathway, with a focus on the proteins involved in the pathway, their interactions and functions. This forms the rationale for detailing the preclinical and clinical pharmacology of drugs that modulate the pivotal proteins in this pathway, with emphasis on drugs that are furthest advanced in clinical development as anticancer agents. There is a focus on describing drugs that modulate three of the most promising targets in the apoptosis pathway, namely antibodies that bind and activate the death receptors, small molecules that inhibit the anti-apoptotic Bcl-2 family proteins, and small molecules and antisense oligonucleotides that inactivate the inhibitors of apoptosis, all of which drive the equilibrium of the apoptotic pathway towards apoptosis. These structurally different yet functionally related groups of drugs represent a promising novel approach to anticancer therapeutics whether used as monotherapy or in combination with either classical cytotoxic or other molecularly targeted anticancer agents.
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Affiliation(s)
- Darcy J P Bates
- Department of Pharmacology and Toxicology, Geisel School of Medicine at Dartmouth, The Norris Cotton Cancer Center, Lebanon, NH, USA
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Zhang XC, Zhang J, Li M, Huang XS, Yang XN, Zhong WZ, Xie L, Zhang L, Zhou M, Gavine P, Su X, Zheng L, Zhu G, Zhan P, Ji Q, Wu YL. Establishment of patient-derived non-small cell lung cancer xenograft models with genetic aberrations within EGFR, KRAS and FGFR1: useful tools for preclinical studies of targeted therapies. J Transl Med 2013; 11:168. [PMID: 23842453 PMCID: PMC3716998 DOI: 10.1186/1479-5876-11-168] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 07/08/2013] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Patient-derived tumor xenograft models have been established and increasingly used for preclinical studies of targeted therapies in recent years. However, patient-derived non-small cell lung cancer (NSCLC) xenograft mouse models are relatively few in number and are limited in their degree of genetic characterization and validation. In this study, we aimed to establish a variety of patient-derived NSCLC models and characterize these for common genetic aberrations to provide more informative models for preclinical drug efficacy testing. METHODS NSCLC tissues from thirty-one patients were collected and implanted into immunodeficient mice. Established xenograft models were characterized for common genetic aberrations, including detection of gene mutations within EGFR and KRAS, and genetic amplification of FGFR1 and cMET. Finally, gefitinib anti-tumor efficacy was tested in these patient-derived NSCLC xenograft models. RESULTS Ten passable patient-derived NSCLC xenograft models were established by implantation of NSCLC specimens of thirty-one patients into immunodeficient mice. Genetic aberrations were detected in six of the models, including one model with an EGFR activating mutation (Exon19 Del), one model with KRAS mutation, one model with both KRAS mutation and cMET gene amplification, and three models with FGFR1 amplification. Anti-tumor efficacy studies using gefitinib demonstrated that the EGFR activating mutation model had superior sensitivity and that the KRAS mutation models were resistant to gefitinib. The range of gefitinib responses in the patient-derived NSCLC xenograft models were consistent with the results reported from clinical trials. Furthermore, we observed that patient-derived NSCLC models with FGFR1 gene amplification were insensitive to gefitinib treatment. CONCLUSIONS Ten patient-derived NSCLC xenograft models were established containing a variety of genetic aberrations including EGFR activating mutation, KRAS mutation, and FGFR1 and cMET amplification. Gefitinib anti-tumor efficacy in these patient-derived NSCLC xenografts containing EGFR and KRAS mutation was consistent with the reported results from previous clinical trials. Thus, data from our panel of patient-derived NSCLC xenograft models confirms the utility of these models in furthering our understanding of this disease and aiding the development of personalized therapies for NSCLC patients.
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Affiliation(s)
- Xu-chao Zhang
- Medical Research Center of Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangdong Lung Cancer Institute Guangzhou 510080, PR China
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Origin of the vasculature supporting growth of primary patient tumor xenografts. J Transl Med 2013; 11:110. [PMID: 23639003 PMCID: PMC3660244 DOI: 10.1186/1479-5876-11-110] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 04/29/2013] [Indexed: 01/11/2023] Open
Abstract
Background Studies of primary patient tumor xenografts grown in immunodeficient mice have shown that these tumors histologically and genetically closely resemble the original tumors. These patient xenograft models are becoming widely used for therapeutic efficacy studies. Because many therapies are directed at tumor stromal components and because the tumor microenvironment also is known to influence the response of a tumor to therapy, it is important to understand the nature of the stroma and, in particular, the vascular supply of patient xenografts. Methods Patient tumor xenografts were established by implanting undisrupted pieces of patient tumors in SCID mice. For this study, formalin fixed, paraffin embedded specimens from several types of solid tumors were selected and, using species-specific antibodies which react with formalin fixed antigens, we analyzed the species origin of the stroma and blood vessels that supported tumor growth in these models. Additionally, we investigated the kinetics of the vascularization process in a colon tumor and a mesothelioma xenograft. In mice bearing a head and neck xenograft, a perfusion study was performed to compare the functionality of the human and mouse tumor vessels. Results In patient tumors which successfully engrafted, the human stroma and vessels which were engrafted as part of the original tumor did not survive and were no longer detectable at the time of first passage (15–25 weeks). Uniformly, the stroma and vessels supporting the growth of these tumors were of murine origin. The results of the kinetic studies showed that the loss of the human vessels and vascularization by host vessels occurred more rapidly in a colon tumor (by 3 weeks) than in a mesothelioma (by 9 weeks). Finally, the perfusion studies revealed that while mouse vessels in the periphery of the tumor were perfused, those in the central regions were rarely perfused. No vessels of human origin were detected in this model. Conclusions In the tumors we investigated, we found no evidence that the human stromal cells and vessels contained in the original implant either survived or contributed in any substantive way to the growth of these xenografts.
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Holland PM. Targeting Apo2L/TRAIL receptors by soluble Apo2L/TRAIL. Cancer Lett 2013; 332:156-62. [DOI: 10.1016/j.canlet.2010.11.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 10/26/2010] [Accepted: 11/01/2010] [Indexed: 01/13/2023]
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Pospisilova J, Vit O, Lorkova L, Klanova M, Zivny J, Klener P, Petrak J. Resistance to TRAIL in mantle cell lymphoma cells is associated with the decreased expression of purine metabolism enzymes. Int J Mol Med 2013; 31:1273-9. [PMID: 23503700 DOI: 10.3892/ijmm.2013.1302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 03/01/2013] [Indexed: 11/05/2022] Open
Abstract
Mantle cell lymphoma (MCL) is a rare aggressive type of B-cell non-Hodgkin's lymphoma. Response to chemotherapy tends to be short and virtually all patients sooner or later relapse. The prognosis of relapsed patients is extremely poor. The tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is considered one of the novel experimental molecules with strong antitumor effects. TRAIL triggers extrinsic apoptotis in tumor cells by binding to TRAIL 'death receptors' on the cell surface. Recombinant TRAIL has shown promising pro-apoptotic effects in a variety of malignancies including lymphoma. However, as with other drugs, lymphoma cells can develop resistance to TRAIL. Therefore, the aim of this study was to identify the molecular mechanisms responsible for, and associated with TRAIL resistance in MCL cells. If identified, these features may be used as molecular targets for the effective elimination of TRAIL-resistant lymphoma cells. From an established TRAIL-sensitive mantle cell lymphoma cell line (HBL-2) we derived a TRAIL-resistant HBL-2/R subclone. By TRAIL receptor analysis and differential proteomic analysis of HBL-2 and HBL-2/R cells we revealed a marked downregulation of all TRAIL receptors and, among others, the decreased expression of 3 key enzymes of purine nucleotide metabolism, namely purine nucleoside phosphorylase, adenine phosphoribosyltransferase and inosine-5'-monophosphate dehydrogenase 2, in the resistant HBL-2/R cells. The downregulation of the 3 key enzymes of purine metabolism can have profound effects on nucleotide homeostasis in TRAIL-resistant lymphoma cells and can render such cells vulnerable to any further disruption of purine nucleotide metabolism. This pathway represents a 'weakness' of the TRAIL-resistant MCL cells and has potential as a therapeutic target for the selective elimination of such cells.
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Affiliation(s)
- Jana Pospisilova
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University in Prague, 128 53 Prague, Czech Republic.
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Physiologically based pharmacokinetic models for everolimus and sorafenib in mice. Cancer Chemother Pharmacol 2013; 71:1219-29. [PMID: 23455451 DOI: 10.1007/s00280-013-2116-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 02/05/2013] [Indexed: 12/30/2022]
Abstract
PURPOSE Everolimus is a mammalian target of rapamycin (mTOR) inhibitor approved as an immunosuppressant and for second-line therapy of hepatocellular carcinoma (HCC) and renal cell carcinoma (RCC). Sorafenib is a multikinase inhibitor used as first-line therapy in HCC and RCC. This study assessed the pharmacokinetics (PK) of everolimus and sorafenib alone and in combination in plasma and tissues, developed physiologically based pharmacokinetic (PBPK) models in mice, and assessed the possibility of PK drug interactions. METHODS Single and multiple oral doses of everolimus and sorafenib were administered alone and in combination in immunocompetent male mice and to severe combined immune-deficient (SCID) mice bearing low-passage, patient-derived pancreatic adenocarcinoma in seven different studies. Plasma and tissue samples including tumor were collected over a 24-h period and analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Distribution of everolimus and sorafenib to the brain, muscle, adipose, lungs, kidneys, pancreas, spleen, liver, GI, and tumor was modeled as perfusion rate-limited, and all data from the diverse studies were fitted simultaneously using a population approach. RESULTS PBPK models were developed for everolimus and sorafenib. PBPK analysis showed that the two drugs in combination had the same PK as each drug given alone. A twofold increase in sorafenib dose increased tumor exposure tenfold, thus suggesting involvement of transporters in tumor deposition of sorafenib. CONCLUSIONS The developed PBPK models suggested the absence of PK interaction between the two drugs in mice. These studies provide the basis for pharmacodynamic evaluation of these drugs in patient-derived primary pancreatic adenocarcinomas explants.
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Synergistic interactions between sorafenib and everolimus in pancreatic cancer xenografts in mice. Cancer Chemother Pharmacol 2013; 71:1231-40. [PMID: 23455452 DOI: 10.1007/s00280-013-2117-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 02/05/2013] [Indexed: 12/22/2022]
Abstract
PURPOSE Molecular targeting of cellular signaling pathways is a promising approach in cancer therapy, but often fails to achieve sustained benefit because of the activation of collateral cancer cell survival and proliferation pathways. We tested the hypothesis that a combination of targeted agents that inhibit compensatory pathways would be more effective than single agents in controlling pancreatic cancer cell growth. We investigated whether everolimus, an mTOR inhibitor, and sorafenib, a multi-kinase inhibitor, would together inhibit growth of low-passage, patient-derived pancreatic cancer xenografts in mice more efficaciously than either agent alone. METHODS Tumor volume progression was measured following treatment with both drugs as single agents, in combination, and at multiple doses. Pharmacokinetics in tumors and other tissues was also assessed. Pharmacodynamic interactions were evaluated quantitatively. RESULTS A 5-week regimen of daily oral doses of 10 mg/kg sorafenib and 0.5 mg/kg everolimus, alone and in combination, did not achieve significant tumor growth inhibition. Higher doses (20 mg/kg of sorafenib and 1 mg/kg of everolimus) inhibited tumor growth significantly when given alone and caused complete inhibition of growth when given in combination. Tumor volume progression was described by a linear growth model, and drug effects were described by Hill-type inhibition. Using population modeling approaches, dual-interaction parameter estimates indicated a highly synergistic pharmacodynamic interaction between the two drugs. CONCLUSIONS The results indicate that combinations of mTOR and multi-kinase inhibitors may offer greater efficacy in pancreatic cancer than either drug alone. Drug effects upon tumor stromal elements may contribute to the enhanced anti-tumor efficacy.
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Shao H, Gao C, Tang H, Zhang H, Roberts LR, Hylander BL, Repasky EA, Ma WW, Qiu J, Adjei AA, Dy GK, Yu C. Dual targeting of mTORC1/C2 complexes enhances histone deacetylase inhibitor-mediated anti-tumor efficacy in primary HCC cancer in vitro and in vivo. J Hepatol 2012; 56:176-83. [PMID: 21835141 DOI: 10.1016/j.jhep.2011.07.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Revised: 07/05/2011] [Accepted: 07/07/2011] [Indexed: 12/22/2022]
Abstract
BACKGROUND & AIMS The mammalian target of rapamycin (mTOR) plays a pivotal role in hepatocellular carcinoma (HCC). Previous studies indicated that inhibition of mTORC1 enhanced histone deacetylase inhibitors (HDACis)-mediated anti-tumor activity, accompanied with feedback activation of AKT. Therefore, dual targeting of mTORC1/C2 should be more efficient in suppressing AKT activity and in enhancing the anti-tumor activity of HDACi in HCC. METHODS The interactions between mTOR kinase inhibitors (mTORKis) (i.e., Pp242, AZD8055, OSI027) and HDACis (i.e., SAHA, LBH589) were examined in vitro using HCC cell lines and in vivo using patient-derived primary HCC xenografts on SCID mice. RESULTS mTORKis significantly enhanced HDACi-induced apoptosis in HCC cells. The inhibition of both mTORC1/2 not only efficiently blocked mTORC1 signaling, but also abrogated AKT-feedback activation caused by selective mTORC1 inhibition. The co-treatment of mTORKi and HDACi further inhibited AKT signaling and upregulated Bim. Dysfunction of mTORC2 by shRNA significantly lowered the threshold of HDACi-induced cytotoxicity by abrogating AKT activation. Knockdown of AKT1 sensitized Pp242/HDACi-induced apoptosis and ectopic expression of constitutively active AKT1 abrogated the combination-induced cytotoxicity, indicating AKT plays a vital role in the combination-induced effects. Knockdown of Bim prevented Pp242/HDACis-induced cytotoxicity in HCC. Lastly, in vivo studies indicated that the combination of AZD8055 and SAHA almost completely inhibited tumor-growth, without obvious adverse effects, by abrogating AKT and upregulating Bim; while either agent alone shows only 30% inhibition in primary HCC xenografts. CONCLUSIONS Our findings suggest that a combining-regimen of mTORKi and HDACi may be an effective therapeutic strategy for HCC.
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Affiliation(s)
- Huanjie Shao
- Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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Soria JC, Márk Z, Zatloukal P, Szima B, Albert I, Juhász E, Pujol JL, Kozielski J, Baker N, Smethurst D, Hei YJ, Ashkenazi A, Stern H, Amler L, Pan Y, Blackhall F. Randomized phase II study of dulanermin in combination with paclitaxel, carboplatin, and bevacizumab in advanced non-small-cell lung cancer. J Clin Oncol 2011; 29:4442-51. [PMID: 22010015 DOI: 10.1200/jco.2011.37.2623] [Citation(s) in RCA: 183] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To evaluate the efficacy and safety of dulanermin combined with paclitaxel and carboplatin (PC) and bevacizumab (PCB) as first-line treatment for advanced or recurrent non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS Patients with squamous NSCLC and/or CNS metastases received PC every 3 weeks alone (arm 1) or with dulanermin 8 mg/kg for 5 days (arm 2). Patients with nonsquamous NSCLC received PCB alone (arm 3) or with dulanermin 8 mg/kg for 5 days (arm 4) or 20 mg/kg for 2 days (arm 5). The primary end point was the objective response rate (ORR). RESULTS Overall, 213 patients were randomly assigned (arm 1, n = 41; arm 2, n = 39; arm 3, n = 42; arm 4, n = 40; arm 5, n = 41). The ORR in arms 1 to 5 was 39% (95% CI, 24% to 56%), 38% (95% CI, 24% to 54%), 50% (95% CI, 35% to 65%), 40% (95% CI, 25% to 56%), and 40% (95% CI, 25% to 56%), respectively. The odds ratio for ORR was 1.04 (P = 1.000) for arm 1 versus arm 2, 1.53 (P = .391) for arm 3 and versus arm 4, and 1.53 (P = .391) for arm 3 versus arm 5. The most common grade ≥ 3 adverse events were neutropenia, asthenia, anemia, thrombocytopenia, and hemoptysis. Of 161 available serum samples, a trend toward increased caspase-cleaved cytokeratin-18 was observed after dulanermin treatment in cycles 1 and 2. Among 84 patients evaluated for GalNT14 expression, there was a trend toward favorable progression-free survival and overall survival with dulanermin treatment in those with high GalNT14 expression. CONCLUSION The addition of dulanermin to PC and PCB did not improve outcomes in unselected patients with previously untreated advanced or recurrent NSCLC.
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Kim H, Folks KD, Guo L, Stockard CR, Fineberg NS, Grizzle WE, George JF, Buchsbaum DJ, Morgan DE, Zinn KR. DCE-MRI detects early vascular response in breast tumor xenografts following anti-DR5 therapy. Mol Imaging Biol 2011; 13:94-103. [PMID: 20383593 DOI: 10.1007/s11307-010-0320-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
PURPOSE Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) measured the early vascular changes after administration of TRA-8, bevacizumab, or TRA-8 combined with bevacizumab in breast tumor xenografts. PROCEDURES Groups 1-4 of nude mice bearing human breast carcinoma were injected with phosphate-buffered saline, TRA-8, bevacizumab, and TRA-8 + bevacizumab on day 0, respectively. DCE-MRI was performed on days 0, 1, 2, and 3, and thereafter tumors were collected for terminal deoxynucleotidyl transferase-mediated dUT nick end labeling and CD31 staining. RESULTS DCE-MRI measured a significant K (trans) change within 3 days after TRA-8 therapy that correlated with tumor growth arrest, which was not shown with statistical significance by histopathology at these early time points posttreatment. The K (trans) changes followed quadratic polynomial curves. CONCLUSION DCE-MRI detected significantly lower K (trans) levels in breast tumor xenografts following TRA-8 monotherapy or combined therapy with bevacizumab.
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Affiliation(s)
- Hyunki Kim
- The Department of Radiology, University of Alabama at Birmingham, AL 35294, USA.
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van Dijk M, Murphy E, Morrell R, Knapper S, O'Dwyer M, Samali A, Szegezdi E. The Proteasome Inhibitor Bortezomib Sensitizes AML with Myelomonocytic Differentiation to TRAIL Mediated Apoptosis. Cancers (Basel) 2011; 3:1329-50. [PMID: 24212664 PMCID: PMC3756416 DOI: 10.3390/cancers3011329] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Revised: 02/15/2011] [Accepted: 03/10/2011] [Indexed: 11/16/2022] Open
Abstract
Acute myeloid leukemia (AML) is an aggressive stem cell malignancy that is difficult to treat. There are limitations to the current treatment regimes especially after disease relapse, and therefore new therapeutic agents are urgently required which can overcome drug resistance whilst avoiding unnecessary toxicity. Among newer targeted agents, both tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) and proteasome inhibitors show particular promise. In this report we show that a combination of the proteasome inhibitor bortezomib and TRAIL is effective against AML cell lines, in particular, AML cell lines displaying myelomonocytic/monocytic phenotype (M4/M5 AML based on FAB classification), which account for 20-30% of AML cases. We show that the underlying mechanism of sensitization is at least in part due to bortezomib mediated downregulation of c-FLIP and XIAP, which is likely to be regulated by NF-κB. Blockage of NF-κB activation with BMS-345541 equally sensitized myelomonocytic AML cell lines and primary AML blasts to TRAIL.
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Affiliation(s)
- Marianne van Dijk
- Apoptosis Research Center, National University of Ireland, University Road, Galway, Ireland; E-Mails: (M.V.D); (E.M); (R.M); (A.S); (M.O.)
- School of Natural Sciences, National University of Ireland, University Road, Galway, Ireland
| | - Eoin Murphy
- Apoptosis Research Center, National University of Ireland, University Road, Galway, Ireland; E-Mails: (M.V.D); (E.M); (R.M); (A.S); (M.O.)
- School of Natural Sciences, National University of Ireland, University Road, Galway, Ireland
| | - Ruth Morrell
- Apoptosis Research Center, National University of Ireland, University Road, Galway, Ireland; E-Mails: (M.V.D); (E.M); (R.M); (A.S); (M.O.)
- School of Natural Sciences, National University of Ireland, University Road, Galway, Ireland
- School of Medicine, National University of Ireland, University Road, Galway, Ireland
| | - Steven Knapper
- Department of Haematology, School of Medicine, Cardiff University, Heath Park, CF14 4XN Cardiff, UK; E-Mail:
| | - Michael O'Dwyer
- Apoptosis Research Center, National University of Ireland, University Road, Galway, Ireland; E-Mails: (M.V.D); (E.M); (R.M); (A.S); (M.O.)
- School of Medicine, National University of Ireland, University Road, Galway, Ireland
| | - Afshin Samali
- Apoptosis Research Center, National University of Ireland, University Road, Galway, Ireland; E-Mails: (M.V.D); (E.M); (R.M); (A.S); (M.O.)
- School of Natural Sciences, National University of Ireland, University Road, Galway, Ireland
| | - Eva Szegezdi
- Apoptosis Research Center, National University of Ireland, University Road, Galway, Ireland; E-Mails: (M.V.D); (E.M); (R.M); (A.S); (M.O.)
- School of Natural Sciences, National University of Ireland, University Road, Galway, Ireland
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +353-91-495037; Fax: +353-91-494-596
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Fulda S. Targeting apoptosis signaling in pancreatic cancer. Cancers (Basel) 2011; 3:241-51. [PMID: 24212616 PMCID: PMC3756359 DOI: 10.3390/cancers3010241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 01/05/2011] [Accepted: 01/06/2011] [Indexed: 12/14/2022] Open
Abstract
The ability to escape apoptosis or programmed cell death is a hallmark of human cancers, for example pancreatic cancer. This can promote tumorigenesis, since too little cell death by apoptosis disturbs tissue homeostasis. Additionally, defective apoptosis signaling is the underlying cause of failure to respond to current treatment approaches, since therapy-mediated antitumor activity requires the intactness of apoptosis signaling pathways in cancer cells. Thus, the elucidation of defects in the regulation of apoptosis in pancreatic carcinoma can result in the identification of novel targets for therapeutic interference and for exploitation for cancer drug discovery.
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Affiliation(s)
- Simone Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528 Frankfurt, Germany.
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Doi T, Murakami H, Ohtsu A, Fuse N, Yoshino T, Yamamoto N, Boku N, Onozawa Y, Hsu CP, Gorski KS, Friberg G, Kawaguchi T, Sasaki T. Phase 1 study of conatumumab, a pro-apoptotic death receptor 5 agonist antibody, in Japanese patients with advanced solid tumors. Cancer Chemother Pharmacol 2010; 68:733-41. [PMID: 21161528 DOI: 10.1007/s00280-010-1544-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Accepted: 11/26/2010] [Indexed: 01/16/2023]
Abstract
PURPOSE Conatumumab is a fully human monoclonal agonist antibody against human death receptor 5 (DR5). The primary objectives of this phase 1 study were to assess the safety, tolerability, and pharmacokinetics (PK) of conatumumab in Japanese patients with advanced solid tumors. METHODS This is an open-label ascending dose study with a starting dose level of 3 mg/kg. Subsequent doses of 10 and 20 mg/kg were planned. Six patients were enrolled into 1 of 3 dose cohorts (3, 10, or 20 mg/kg) of conatumumab administered intravenously once every 2 weeks as a single agent. No conatumumab was administered on day 43 to allow the assessment of terminal PK parameters. The primary endpoints were the incidence of dose-limiting toxicities (DLTs) and assessment of PK parameters of conatumumab. RESULTS Eighteen patients received at least 1 dose of conatumumab. There were no DLTs observed as defined in the protocol. No patients had an adverse event leading to conatumumab discontinuation. Conatumumab demonstrated dose-linear kinetics. A best response of stable disease was reported in nine patients. Monocytes were found to express DR5 and showed a high degree of conatumumab receptor occupancy after treatment at all dose levels. CONCLUSIONS Conatumumab administered up to 20 mg/kg once every 2 weeks was well tolerated in Japanese patients with advanced solid tumors. Adverse events and PK in these patients were similar to those in the first in human (FIH) study.
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Affiliation(s)
- T Doi
- Gastrointestinal/Oncology Division, National Cancer Center Hospital East, Kashiwa, Chiba, Japan.
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Yang A, Wilson NS, Ashkenazi A. Proapoptotic DR4 and DR5 signaling in cancer cells: toward clinical translation. Curr Opin Cell Biol 2010; 22:837-44. [DOI: 10.1016/j.ceb.2010.08.001] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 08/04/2010] [Accepted: 08/05/2010] [Indexed: 01/14/2023]
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Potent antitumoral activity of TRAIL through generation of tumor-targeted single-chain fusion proteins. Cell Death Dis 2010; 1:e68. [PMID: 21364672 PMCID: PMC3032523 DOI: 10.1038/cddis.2010.45] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In an attempt to improve TRAIL's (tumor necrosis factor-related apoptosis-inducing ligand) tumor selective activity a variant was designed, in which the three TRAIL protomers are expressed as a single polypeptide chain (scTRAIL). By genetic fusion with a single-chain antibody fragment (scFv) recognizing the extracellular domain of ErbB2, we further equipped scTRAIL with tumor-targeting properties. We studied tumor targeting and apoptosis induction of scFv–scTRAIL in comparison with non-targeted scTRAIL. Importantly, the tumor antigen-targeted scTRAIL fusion protein showed higher apoptotic activity in vitro, with a predominant action by TRAIL-R2 signaling. Pharmacokinetic studies revealed increased plasma half-life of the targeted scTRAIL fusion protein compared with scTRAIL. In vivo studies in a mouse tumor model with xenotransplanted Colo205 cells confirmed greater response to the ErbB2-specific scTRAIL fusion protein compared with non-targeted scTRAIL both under local and systemic application regimen. Together, in vitro and in vivo data give proof of concept of higher therapeutic activity of tumor-targeted scFv–scTRAIL molecules. Further, we envisage that through targeting of scTRAIL, potential side effects should be minimized. We propose that scFv-mediated tumor targeting of single-chain TRAIL represents a promising strategy to improve TRAIL's antitumoral action and to minimize potential unwanted actions on normal tissues.
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TRAIL and other TRAIL receptor agonists as novel cancer therapeutics. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2010; 647:195-206. [PMID: 19760076 DOI: 10.1007/978-0-387-89520-8_14] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL), also known as Apo2L, is a member of the TNF superfamily (TNFSF) of cytokines. TRAIL gained much attention during the past decade due to the demonstration of its therapeutic potential as a tumor-specific apoptosis inducer. TRAIL was identified as a protein with high homology to other members of the TNF cytokine family, especially to the ligand of Fas/Apo-1 (CD95), CD95L (FasL/APO-1L). TRAIL has been shown to induce apoptosis selectively in many tumor cell lines without affecting normal cells and tissues, making TRAIL itself as well as agonists of the two human receptors of TRAIL which can submit an apoptotic signal, TRAIL-R1 (DR4) and TRAIL-R2 (DR5), promising novel biotherapeutics for cancer therapy. An increasing number of publications now shows that TRAIL resistance in primary human tumor cells will have to be overcome and that sensitization to TRAIL-induced apoptosis will be required in many cases. Therefore, it will also be instrumental to develop suitable diagnostic tests to identify patients who will benefit from TRAIL-based novel anticancer therapeutics and those who will not. Interestingly, the first clinical results even in monotherapy with TRAIL as well as various agonistic TRAIL receptor-specific antibodies have shown encouraging results. This chapter provides a compact overview on the biochemistry of the TRAIL/TRAIL-R system, the physiological role of TRAIL and its receptors and the results of clinical trials with TRAIL and various TRAIL-R agonistic antibodies.
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Herbst RS, Eckhardt SG, Kurzrock R, Ebbinghaus S, O'Dwyer PJ, Gordon MS, Novotny W, Goldwasser MA, Tohnya TM, Lum BL, Ashkenazi A, Jubb AM, Mendelson DS. Phase I dose-escalation study of recombinant human Apo2L/TRAIL, a dual proapoptotic receptor agonist, in patients with advanced cancer. J Clin Oncol 2010; 28:2839-46. [PMID: 20458040 DOI: 10.1200/jco.2009.25.1991] [Citation(s) in RCA: 342] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
PURPOSE Apoptosis ligand 2/tumor necrosis factor-related apoptosis-inducing ligand (Apo2L/TRAIL)-a member of the tumor necrosis factor cytokine family-induces apoptosis by activating the extrinsic pathway through the proapoptotic death receptors DR4 and DR5. Recombinant human Apo2L/TRAIL (rhApo2L/TRAIL) has broad potential as a cancer therapy. To the best of our knowledge, this is the first in-human clinical trial to assess the safety, tolerability, pharmacokinetics, and antitumor activity of multiple intravenous doses of rhApo2L/TRAIL in patients with advanced cancer. PATIENTS AND METHODS This phase I, open-label, dose-escalation study treated patients with advanced cancer with rhApo2L/TRAIL doses ranging from 0.5 to 30 mg/kg/d, with parallel dose escalation for patients without liver metastases and with normal liver function (cohort 1) and for patients with liver metastases and normal or mildly abnormal liver function (cohort 2). Doses were given daily for 5 days, with cycles repeating every 3 weeks. Assessments included adverse events (AEs), laboratory tests, pharmacokinetics, and imaging to evaluate antitumor activity. RESULTS Seventy-one patients received a mean of 18.3 doses; seven patients completed all eight treatment cycles. The AE profile of rhApo2L/TRAIL was similar in cohorts 1 and 2. The most common AEs were fatigue (38%), nausea (28%), vomiting (23%), fever (23%), anemia (18%), and constipation (18%). Liver enzyme elevations were concurrent with progressive metastatic liver disease. Two patients with sarcoma (synovial and undifferentiated) experienced serious AEs associated with rapid tumor necrosis. Two patients with chondrosarcoma experienced durable partial responses to rhApo2L/TRAIL. CONCLUSION At the tested schedule and dose range, rhApo2L/TRAIL was safe and well tolerated. Dose escalation achieved peak rhApo2L/TRAIL serum concentrations equivalent to those associated with preclinical antitumor efficacy.
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Affiliation(s)
- Roy S Herbst
- University of Texas M D Anderson Cancer Center, Thoracic Head and Neck Medicine Clinic, 1515 Holcombe Blvd, Unit 432, Houston, TX 77030, USA.
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Kauh J, Fan S, Xia M, Yue P, Yang L, Khuri FR, Sun SY. c-FLIP degradation mediates sensitization of pancreatic cancer cells to TRAIL-induced apoptosis by the histone deacetylase inhibitor LBH589. PLoS One 2010; 5:e10376. [PMID: 20442774 PMCID: PMC2860986 DOI: 10.1371/journal.pone.0010376] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Accepted: 04/07/2010] [Indexed: 11/19/2022] Open
Abstract
Great efforts have been made to develop novel and efficacious therapeutics against pancreatic cancer to improve the treatment outcomes. Tumor-necrosis factor-related apoptosis-inducing ligand (TRAIL) is such a therapeutic cytokine with selective killing effect toward malignant cells. However, some human pancreatic cancers are intrinsically resistant to TRAIL-mediated apoptosis or therapy. In this study, we have shown that the histone deacetylase inhibitor LBH589 can synergize with TRAIL to augment apoptosis even in TRAIL-resistant cells. LBH589 decreased c-FLIP levels in every tested cell line and survivin levels in some of the tested cell lines. Enforced expression of ectopic c-FLIP, but not survivin, abolished the cooperative induction of apoptosis by the combination of LBH589 and TRAIL, indicating that c-FLIP downregulation plays a critical role in LBH589 sensitization of pancreatic cancer cells to TRAIL. Moreover, LBH589 decreased c-FLIP stability and the presence of the proteasome inhibitor MG132 prevented c-FLIP from reduction by LBH589. Correspondingly, we detected increased levels of ubiqutinated c-FLIP in LBH589-treated cells. These data thus indicate that LBH589 promotes ubiqutin/proteasome-mediated degradation of c-FLIP, leading to downregulation of c-FLIP. Collectively, LBH589 induces c-FLIP degradation and accordingly sensitizes pancreatic cancer cells to TRAIL-induced apoptosis, highlighting a novel therapeutic regimen against pancreatic cancer.
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Affiliation(s)
- John Kauh
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, Georgia, United States of America
| | - Songqing Fan
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, Georgia, United States of America
| | - Mingjing Xia
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, Georgia, United States of America
| | - Ping Yue
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, Georgia, United States of America
| | - Lily Yang
- Department of Surgery, Emory University School of Medicine and Winship Cancer Institute, Atlanta, Georgia, United States of America
| | - Fadlo R. Khuri
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, Georgia, United States of America
| | - Shi-Yong Sun
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, Georgia, United States of America
- * E-mail:
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