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Aparicio-Lopez CB, Timmerman S, Lorino G, Rogers T, Pyle M, Shrestha TB, Basel MT. Thermosensitive Liposomes for Gemcitabine Delivery to Pancreatic Ductal Adenocarcinoma. Cancers (Basel) 2024; 16:3048. [PMID: 39272906 PMCID: PMC11394165 DOI: 10.3390/cancers16173048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Revised: 08/26/2024] [Accepted: 08/28/2024] [Indexed: 09/15/2024] Open
Abstract
Treatment of pancreatic ductal adenocarcinoma with gemcitabine is limited by an increased desmoplasia, poor vascularization, and short plasma half-life. Heat-sensitive liposomes modified by polyethylene glycol (PEG; PEGylated liposomes) can increase plasma stability, reduce clearance, and decrease side effects. Nevertheless, translation of heat-sensitive liposomes to the clinic has been hindered by the low loading efficiency of gemcitabine and by the difficulty of inducing hyperthermia in vivo. This study was designed to investigate the effect of phospholipid content on the stability of liposomes at 37 °C and their release under hyperthermia conditions; this was accomplished by employing a two-stage heating approach. First the liposomes were heated at a fast rate, then they were transferred to a holding bath. Thermosensitive liposomes formulated with DPPC: DSPC: PEG2k (80:15:5, mole%) exhibited minimal release of carboxyfluorescein at 37 °C over 30 min, indicating stability under physiological conditions. However, upon exposure to hyperthermic conditions (43 °C and 45 °C), these liposomes demonstrated a rapid and significant release of their encapsulated content. The encapsulation efficiency for gemcitabine was calculated at 16.9%. Additionally, fluorescent analysis during the removal of unencapsulated gemcitabine revealed an increase in pH. In vitro tests with BxPC3 and KPC cell models showed that these thermosensitive liposomes induced a heat-dependent cytotoxic effect comparable to free gemcitabine at temperatures above 41 °C. This study highlights the effectiveness of the heating mechanism and cell models in understanding the current challenges in developing gemcitabine-loaded heat-sensitive liposomes.
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Affiliation(s)
- Cesar B Aparicio-Lopez
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Sarah Timmerman
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Gabriella Lorino
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Tatiana Rogers
- Department of Electrical and Computer Engineering, Kansas State University, Manhattan, KS 66506, USA
| | - Marla Pyle
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Tej B Shrestha
- Nanotechnology Innovation Center of Kansas State (NICKS), Kansas State University, Manhattan, KS 66506, USA
| | - Matthew T Basel
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
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Panebianco C, Pisati F, Villani A, Andolfo A, Ulaszewska M, Bellini E, Ferro C, Lombardi R, Orsenigo F, Latiano TP, Belmonte B, Tripodo C, Perri F, Pazienza V. Counteracting gemcitabine+nab-paclitaxel induced dysbiosis in KRAS wild type and KRAS G12D mutated pancreatic cancer in vivo model. Cell Death Discov 2023; 9:116. [PMID: 37019893 PMCID: PMC10076501 DOI: 10.1038/s41420-023-01397-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/28/2023] [Accepted: 03/03/2023] [Indexed: 04/07/2023] Open
Abstract
Pancreatic cancer (PC) has a very low survival rate mainly due to late diagnosis and refractoriness to therapies. The latter also cause adverse effects negatively affecting the patients' quality of life, often requiring dose reduction or discontinuation of scheduled treatments, compromising the chances of cure. We explored the effects of a specific probiotic blend on PC mice xenografted with KRAS wild-type or KRASG12D mutated cell lines alone or together with gemcitabine+nab-paclitaxel treatment to then assess tumor volume and clinical pathological variables. Beside a semi-quantitative histopathological evaluation of murine tumor and large intestine samples, histochemical and immunohistochemical analyses were carried out to evaluate collagen deposition, proliferation index Ki67, immunological microenvironment tumor-associated, DNA damage markers and also mucin production. Blood cellular and biochemical parameters and serum metabolomics were further analyzed. 16S sequencing was performed to analyze the composition of fecal microbiota. Gemcitabine+nab-paclitaxel treatment impaired gut microbial profile in KRAS wild-type and KRASG12D mice. Counteracting gemcitabine+nab-paclitaxel- induced dysbiosis through the administration of probiotics ameliorated chemotherapy side effects and decreased cancer-associated stromatogenesis. Milder intestinal damage and improved blood count were also observed upon probiotics treatment as well as a positive effect on fecal microbiota, yielding an increase in species richness and in short chain fatty acids producing- bacteria. Mice' serum metabolomic profiles revealed significant drops in many amino acids upon probiotics administration in KRAS wild-type mice while in animals transplanted with PANC-1 KRASG12D mutated all treated groups showed a sharp decline in serum levels of bile acids with respect to control mice. These results suggest that counteracting gemcitabine+nab-paclitaxel-induced dysbiosis ameliorates chemotherapy side effects by restoring a favorable microbiota composition. Relieving adverse effects of the chemotherapy through microbiota manipulation could be a desirable strategy in order to improve pancreatic cancer patients' quality of life and to increase the chance of cure.
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Affiliation(s)
- Concetta Panebianco
- Division of Gastroenterology, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale dei Cappuccini, 1, 71013, San Giovanni Rotondo, FG, Italy
| | - Federica Pisati
- Histopathology Unit, Cogentech S.C.a.R.L, FIRC Institute of Molecular Oncology (IFOM), Via Adamello, 16, 20139, Milan, MI, Italy
| | - Annacandida Villani
- Division of Gastroenterology, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale dei Cappuccini, 1, 71013, San Giovanni Rotondo, FG, Italy
| | - Annapaola Andolfo
- Proteomics and Metabolomics Facility (ProMeFa), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Marynka Ulaszewska
- Proteomics and Metabolomics Facility (ProMeFa), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Edoardo Bellini
- Proteomics and Metabolomics Facility (ProMeFa), IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy
| | - Carmelapia Ferro
- Division of Gastroenterology, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale dei Cappuccini, 1, 71013, San Giovanni Rotondo, FG, Italy
| | - Renato Lombardi
- Unit of Pharmacy, Department of Pharmaceuticals, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | | | - Tiziana Pia Latiano
- Oncology Unit Fondazione IRCCS Casa Sollievo della Sofferenza, Viale dei Cappuccini, 1, 71013, San Giovanni Rotondo, FG, Italy
| | - Beatrice Belmonte
- Tumor Immunology Unit, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties "G. D'Alessandro", University of Palermo, Via del Vespro 129, 90127, Palermo, Italy
| | - Claudio Tripodo
- Histopathology Unit, Cogentech S.C.a.R.L, FIRC Institute of Molecular Oncology (IFOM), Via Adamello, 16, 20139, Milan, MI, Italy
- Tumor Immunology Unit, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties "G. D'Alessandro", University of Palermo, Via del Vespro 129, 90127, Palermo, Italy
| | - Francesco Perri
- Division of Gastroenterology, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale dei Cappuccini, 1, 71013, San Giovanni Rotondo, FG, Italy
| | - Valerio Pazienza
- Division of Gastroenterology, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale dei Cappuccini, 1, 71013, San Giovanni Rotondo, FG, Italy.
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3
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Privitera A, Cardaci V, Weerasekara D, Saab MW, Diolosà L, Fidilio A, Jolivet RB, Lazzarino G, Amorini AM, Camarda M, Lunte SM, Caraci F, Caruso G. Microfluidic/HPLC combination to study carnosine protective activity on challenged human microglia: Focus on oxidative stress and energy metabolism. Front Pharmacol 2023; 14:1161794. [PMID: 37063279 PMCID: PMC10095171 DOI: 10.3389/fphar.2023.1161794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/03/2023] [Indexed: 03/31/2023] Open
Abstract
Carnosine (β-alanyl-L-histidine) is a naturally occurring endogenous peptide widely distributed in excitable tissues such as the brain. This dipeptide possesses well-demonstrated antioxidant, anti-inflammatory, and anti-aggregation properties, and it may be useful for treatment of pathologies characterized by oxidative stress and energy unbalance such as depression and Alzheimer's disease (AD). Microglia, the brain-resident macrophages, are involved in different physiological brain activities such synaptic plasticity and neurogenesis, but their dysregulation has been linked to the pathogenesis of numerous diseases. In AD brain, the activation of microglia towards a pro-oxidant and pro-inflammatory phenotype has found in an early phase of cognitive decline, reason why new pharmacological targets related to microglia activation are of great importance to develop innovative therapeutic strategies. In particular, microglia represent a common model of lipopolysaccharides (LPS)-induced activation to identify novel pharmacological targets for depression and AD and numerous studies have linked the impairment of energy metabolism, including ATP dyshomeostasis, to the onset of depressive episodes. In the present study, we first investigated the toxic potential of LPS + ATP in the absence or presence of carnosine. Our studies were carried out on human microglia (HMC3 cell line) in which LPS + ATP combination has shown the ability to promote cell death, oxidative stress, and inflammation. Additionally, to shed more light on the molecular mechanisms underlying the protective effect of carnosine, its ability to modulate reactive oxygen species production and the variation of parameters representative of cellular energy metabolism was evaluated by microchip electrophoresis coupled to laser-induced fluorescence and high performance liquid chromatography, respectively. In our experimental conditions, carnosine prevented LPS + ATP-induced cell death and oxidative stress, also completely restoring basal energy metabolism in human HMC3 microglia. Our results suggest a therapeutic potential of carnosine as a new pharmacological tool in the context of multifactorial disorders characterize by neuroinflammatory phenomena including depression and AD.
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Affiliation(s)
- Anna Privitera
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Vincenzo Cardaci
- Vita-Salute San Raffaele University, Milano, Italy
- Scuola Superiore di Catania, University of Catania, Catania, Italy
| | - Dhanushka Weerasekara
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, United States
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, United States
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Lidia Diolosà
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
| | - Annamaria Fidilio
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, Troina, Italy
| | - Renaud Blaise Jolivet
- Maastricht Centre for Systems Biology (MaCSBio), Maastricht University, Maastricht, Netherlands
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Susan Marie Lunte
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, United States
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, United States
- Department of Chemistry, University of Kansas, Lawrence, KS, United States
| | - Filippo Caraci
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, Troina, Italy
| | - Giuseppe Caruso
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, Troina, Italy
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4
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The Anti-Tubercular Aminolipopeptide Trichoderin A Displays Selective Toxicity against Human Pancreatic Ductal Adenocarcinoma Cells Cultured under Glucose Starvation. Pharmaceutics 2023; 15:pharmaceutics15010287. [PMID: 36678914 PMCID: PMC9866366 DOI: 10.3390/pharmaceutics15010287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Pancreatic ductal adenocarcinoma remains a highly debilitating condition with no effective disease-modifying interventions. In our search for natural products with promising anticancer activity, we identified the aminolipopeptide trichoderin A as a potential candidate. While it was initially isolated as an antitubercular peptide, we provide evidence that it is also selectively toxic against BxPC-3 and PANC-1 human pancreatic ductal adenocarcinoma cells cultured under glucose deprivation. This has critical implications for the pancreatic ductal adenocarcinoma, which is characterized by nutrient deprivation due to its hypovascularized network. We have also successfully simplified the trichoderin A peptide backbone, allowing greater accessibility to the peptide for further biological testing. In addition, we also conducted a preliminary investigation into the role of peptide lipidation at the N-terminus. This showed that analogues with longer fatty acyl chains exhibited superior cytotoxicity than those with shorter acyl chains. Further structural optimization of trichoderin A is anticipated to improve its biological activity, whilst ongoing mechanistic studies to elucidate its intracellular mechanism of action are conducted in parallel.
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5
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Unveiling Metabolic Vulnerability and Plasticity of Human Osteosarcoma Stem and Differentiated Cells to Improve Cancer Therapy. Biomedicines 2021; 10:biomedicines10010028. [PMID: 35052705 PMCID: PMC8773137 DOI: 10.3390/biomedicines10010028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/17/2021] [Accepted: 12/21/2021] [Indexed: 01/01/2023] Open
Abstract
Defining the metabolic phenotypes of cancer-initiating cells or cancer stem cells and of their differentiated counterparts might provide fundamental knowledge for improving or developing more effective therapies. In this context we extensively characterized the metabolic profiles of two osteosarcoma-derived cell lines, the 3AB-OS cancer stem cells and the parental MG-63 cells. To this aim Seahorse methodology-based metabolic flux analysis under a variety of conditions complemented with real time monitoring of cell growth by impedentiometric technique and confocal imaging were carried out. The results attained by selective substrate deprivation or metabolic pathway inhibition clearly show reliance of 3AB-OS on glycolysis and of MG-63 on glutamine oxidation. Treatment of the osteosarcoma cell lines with cisplatin resulted in additive inhibitory effects in MG-63 cells depleted of glutamine whereas it antagonized under selective withdrawal of glucose in 3AB-OS cells thereby manifesting a paradoxical pro-survival, cell-cycle arrest in S phase and antioxidant outcome. All together the results of this study highlight that the efficacy of specific metabolite starvation combined with chemotherapeutic drugs depends on the cancer compartment and suggest cautions in using it as a generalizable curative strategy.
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Schöller E, Marks J, Marchand V, Bruckmann A, Powell CA, Reichold M, Mutti CD, Dettmer K, Feederle R, Hüttelmaier S, Helm M, Oefner P, Minczuk M, Motorin Y, Hafner M, Meister G. Balancing of mitochondrial translation through METTL8-mediated m 3C modification of mitochondrial tRNAs. Mol Cell 2021; 81:4810-4825.e12. [PMID: 34774131 PMCID: PMC11214777 DOI: 10.1016/j.molcel.2021.10.018] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/19/2021] [Accepted: 10/18/2021] [Indexed: 02/08/2023]
Abstract
Mitochondria contain a specific translation machinery for the synthesis of mitochondria-encoded respiratory chain components. Mitochondrial tRNAs (mt-tRNAs) are also generated from the mitochondrial DNA and, similar to their cytoplasmic counterparts, are post-transcriptionally modified. Here, we find that the RNA methyltransferase METTL8 is a mitochondrial protein that facilitates 3-methyl-cytidine (m3C) methylation at position C32 of the mt-tRNASer(UCN) and mt-tRNAThr. METTL8 knockout cells show a reduction in respiratory chain activity, whereas overexpression increases activity. In pancreatic cancer, METTL8 levels are high, which correlates with lower patient survival and an enhanced respiratory chain activity. Mitochondrial ribosome profiling uncovered mitoribosome stalling on mt-tRNASer(UCN)- and mt-tRNAThr-dependent codons. Further analysis of the respiratory chain complexes using mass spectrometry revealed reduced incorporation of the mitochondrially encoded proteins ND6 and ND1 into complex I. The well-balanced translation of mt-tRNASer(UCN)- and mt-tRNAThr-dependent codons through METTL8-mediated m3C32 methylation might, therefore, facilitate the optimal composition and function of the mitochondrial respiratory chain.
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Affiliation(s)
- Eva Schöller
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany
| | - James Marks
- RNA Molecular Biology Group, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Virginie Marchand
- Université de Lorraine, CNRS, INSERM, UMS2008/US40 IBSLor, EpiRNA-Seq Core facility, 54000 Nancy, France
| | - Astrid Bruckmann
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany
| | - Christopher A Powell
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK
| | - Markus Reichold
- Medical Cell Biology, Institute of Physiology, University of Regensburg, 93053 Regensburg, Germany
| | - Christian Daniel Mutti
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK
| | - Katja Dettmer
- Institute of Functional Genomics, University of Regensburg, 93053 Regensburg, Germany
| | - Regina Feederle
- Monoclonal Antibody Core Facility, Institute for Diabetes and Obesity, Helmholtz-Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Stefan Hüttelmaier
- Institute of Molecular Medicine, Section for Molecular Cell Biology, Faculty of Medicine, Martin-Luther-University Halle-Wittenberg, 06120 Halle, Germany
| | - Mark Helm
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University, Staudingerweg 5, 55128 Mainz, Germany
| | - Peter Oefner
- Institute of Functional Genomics, University of Regensburg, 93053 Regensburg, Germany
| | - Michal Minczuk
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Hills Road, Cambridge CB2 0XY, UK
| | - Yuri Motorin
- Université de Lorraine, CNRS, INSERM, UMS2008/US40 IBSLor, EpiRNA-Seq Core facility, 54000 Nancy, France; Université de Lorraine, CNRS, UMR7365 IMoPA, 54000 Nancy, France
| | - Markus Hafner
- RNA Molecular Biology Group, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Gunter Meister
- Regensburg Center for Biochemistry (RCB), Laboratory for RNA Biology, University of Regensburg, 93053 Regensburg, Germany.
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Li Z, Yang H, Ye L, Quan R, Chen M. Role of exosomal miRNAs in brain metastasis affected by radiotherapy. Transl Neurosci 2021; 12:127-137. [PMID: 33821195 PMCID: PMC8012736 DOI: 10.1515/tnsci-2020-0163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/08/2021] [Accepted: 03/15/2021] [Indexed: 12/26/2022] Open
Abstract
In oncogenesis and development of malignant tumor, microRNAs (miRNAs) regulate the complex gene expression associated with the tumor pathogenesis. Currently, only few studies have been conducted to identify miRNAs and the potential pathways involved in the pathogenesis of brain metastasis in patients who underwent radiotherapy, especially miRNAs in the plasma exosomes. Therefore, this study is aimed to use small RNA analysis to identify miRNAs and their potential target genes in plasma exosomes during the initiation and development of brain metastasis in patients who underwent radiotherapy. Using high-throughput sequencing technologies, we identified 35 differentially expressed miRNAs in patients with brain metastasis who had undergone radiotherapy. In annotation of miRNA targets, gene ontology enrichment analysis revealed that the targets of the differentially expressed miRNAs were significantly enriched in the regulation of cellular processes. Kyoto Encyclopedia of Genes and Genomes revealed that most of the miRNA targets were cancer-related, including genes involved in the mitogen-activated protein kinase signaling pathway, cancer-related pathways, phosphatidylinositol 3-kinase-protein kinase B signaling pathway, microtubule-associated protein kinase signaling pathway, Ras signaling pathway, regulation of the actin cytoskeleton, and axon guidance. In conclusion, this study provides a new perspective to understand the possible function of these miRNAs in the pathogenesis of brain metastasis. This was the first time that a pilot study identified plasma exosomal miRNAs in five patients with brain metastasis before and after radiotherapy. This study is the beginning; more specimen and further research are needed to explore the functional role of specific miRNAs and their potential as therapeutic targets for brain metastasis.
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Affiliation(s)
- Zihuang Li
- Department of Radiation Oncology, The Second Clinical Medical College of Jinan University, Shenzhen Municipal People's Hospital, 1017 Dongmen North Road, Shenzhen, Guangdong, 518020, China
| | - Hongli Yang
- Department of Radiation Oncology, The Second Clinical Medical College of Jinan University, Shenzhen Municipal People's Hospital, 1017 Dongmen North Road, Shenzhen, Guangdong, 518020, China
| | - Ling Ye
- Department of oncology, The First Affiliated Hospital of Ji Nan University, Guangzhou, Guangdong, China
| | - Rencui Quan
- Department of Radiation Oncology, The Second Clinical Medical College of Jinan University, Shenzhen Municipal People's Hospital, 1017 Dongmen North Road, Shenzhen, Guangdong, 518020, China
| | - Meili Chen
- Department of Radiation Oncology, The Second Clinical Medical College of Jinan University, Shenzhen Municipal People's Hospital, 1017 Dongmen North Road, Shenzhen, Guangdong, 518020, China
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8
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Srivastava S, Widmann S, Ho C, Nguyen D, Nguyen A, Premaratne A, Gustafsson JÅ, Lin CY. Novel Liver X Receptor Ligand GAC0001E5 Disrupts Glutamine Metabolism and Induces Oxidative Stress in Pancreatic Cancer Cells. Int J Mol Sci 2020; 21:ijms21249622. [PMID: 33348693 PMCID: PMC7767092 DOI: 10.3390/ijms21249622] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/02/2020] [Accepted: 12/08/2020] [Indexed: 02/04/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the predominant form of pancreatic cancer with a high mortality rate due to the lack of early detection and effective treatment options for advanced diseases. Metabolic reprogramming, a common hallmark of malignant transformation in pancreatic cancer, is critical for the growth and survival of cancer cells and a potential target mechanism for the treatment of pancreatic cancer. PDAC cells have upregulated glutamine metabolism to meet their biosynthetic and oxidative demands. Liver X receptors (LXRs) are ligand-dependent transcription factors involved in maintaining metabolic homeostasis. LXRs regulate critical cancer-related processes and pathways, including cholesterol, glucose and lipid metabolism, and inflammatory and immune responses. Analysis of transcriptomic data from PDAC clinical samples reveals overexpression of LXRs and their target genes in tumors as compared to normal tissue controls. Targeting LXRs with the novel LXR inverse agonist and degrader GAC0001E5 inhibited PDAC cell proliferation. Using a metabolomics approach, we discovered that 1E5 inhibits glutamine anaplerosis and induces oxidative stress, which are detrimental to PDAC cells. These findings highlight a novel role for LXR in regulating cancer metabolism and the potential application of LXR modulators in targeting cancer metabolism in pancreatic cancer and other malignancies.
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Webb BA, Aloisio FM, Charafeddine RA, Cook J, Wittmann T, Barber DL. pHLARE: a new biosensor reveals decreased lysosome pH in cancer cells. Mol Biol Cell 2020; 32:131-142. [PMID: 33237838 PMCID: PMC8120692 DOI: 10.1091/mbc.e20-06-0383] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Many lysosome functions are determined by a lumenal pH of ∼5.0, including the activity of resident acid-activated hydrolases. Lysosome pH (pHlys) is often increased in neurodegenerative disorders and predicted to be decreased in cancers, making it a potential target for therapeutics to limit the progression of these diseases. Accurately measuring pHlys, however, is limited by currently used dyes that accumulate in multiple intracellular compartments and cannot be propagated in clonal cells for longitudinal studies or used for in vivo determinations. To resolve this limitation, we developed a genetically encoded ratiometric pHlys biosensor, pHLARE (pHLysosomal Activity REporter), which localizes predominantly in lysosomes, has a dynamic range of pH 4.0 to 6.5, and can be stably expressed in cells. Using pHLARE we show decreased pHlys with inhibiting activity of the mammalian target of rapamycin complex 1 (mTORC1). Also, cancer cells from different tissue origins have a lower pHlys than untransformed cells, and stably expressing oncogenic RasV12 in untransformed cells is sufficient to decrease pHlys. pHLARE is a new tool to accurately measure pHlys for improved understanding of lysosome dynamics, which is increasingly considered a therapeutic target.
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Affiliation(s)
- Bradley A Webb
- Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA 94941
| | - Francesca M Aloisio
- Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA 94941
| | - Rabab A Charafeddine
- Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA 94941
| | - Jessica Cook
- Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA 94941
| | - Torsten Wittmann
- Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA 94941
| | - Diane L Barber
- Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, CA 94941
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10
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Inhibition of pyruvate dehydrogenase kinase influence microbiota and metabolomic profile in pancreatic cancer xenograft mice. BMC Res Notes 2020; 13:540. [PMID: 33208188 PMCID: PMC7672971 DOI: 10.1186/s13104-020-05384-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/10/2020] [Indexed: 11/17/2022] Open
Abstract
Objective Despite recent advances in treatment options, pancreatic cancer remains the most deadly major cancer. Targeting metabolism represents an emerging anti-cancer strategy. Results Metagenomic 16S analysis was employed to explore the effect of Dichloroacetate (DCA) on the composition of the fecal microbiota and metabolomic profile was assessed on in vivo pancreatic cancer mouse xenograft model. Pancreatic cancer xenograft mice displayed a shift of microbiota’ profile as compared to control mice without DCA treatment and a significant decrease of the purine bases inosine xanthine together with their metabolically-related compound hypoxanthine were observed in the DCA treated group as compared to the control group. Two aminoacids methionine and aspartic acid resulted decreased and increased respectively. DCA affects tumor environment and studies are needed in order to understand whether DCA supplementation could be supportive as synergistic approach to enhance the efficacy of existing cancer treatments in pancreatic cancer patients.
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11
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Agriesti F, Tataranni T, Pacelli C, Scrima R, Laurenzana I, Ruggieri V, Cela O, Mazzoccoli C, Salerno M, Sessa F, Sani G, Pomara C, Capitanio N, Piccoli C. Nandrolone induces a stem cell-like phenotype in human hepatocarcinoma-derived cell line inhibiting mitochondrial respiratory activity. Sci Rep 2020; 10:2287. [PMID: 32041983 PMCID: PMC7010785 DOI: 10.1038/s41598-020-58871-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/22/2020] [Indexed: 12/14/2022] Open
Abstract
Nandrolone is a testosterone analogue with anabolic properties commonly abused worldwide, recently utilized also as therapeutic agent in chronic diseases, cancer included. Here we investigated the impact of nandrolone on the metabolic phenotype in HepG2 cell line. The results attained show that pharmacological dosage of nandrolone, slowing cell growth, repressed mitochondrial respiration, inhibited the respiratory chain complexes I and III and enhanced mitochondrial reactive oxygen species (ROS) production. Intriguingly, nandrolone caused a significant increase of stemness-markers in both 2D and 3D cultures, which resulted to be CxIII-ROS dependent. Notably, nandrolone negatively affected differentiation both in healthy hematopoietic and mesenchymal stem cells. Finally, nandrolone administration in mice confirmed the up-regulation of stemness-markers in liver, spleen and kidney. Our observations show, for the first time, that chronic administration of nandrolone, favoring maintenance of stem cells in different tissues would represent a precondition that, in addition to multiple hits, might enhance risk of carcinogenesis raising warnings about its abuse and therapeutic utilization.
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Affiliation(s)
- Francesca Agriesti
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028, Rionero in Vulture, Italy
| | - Tiziana Tataranni
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028, Rionero in Vulture, Italy
| | - Consiglia Pacelli
- Department of Clinical and Experimental Medicine, University of Foggia, via L. Pinto c/o OO.RR., 71100, Foggia, Italy
| | - Rosella Scrima
- Department of Clinical and Experimental Medicine, University of Foggia, via L. Pinto c/o OO.RR., 71100, Foggia, Italy
| | - Ilaria Laurenzana
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028, Rionero in Vulture, Italy
| | - Vitalba Ruggieri
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028, Rionero in Vulture, Italy
| | - Olga Cela
- Department of Clinical and Experimental Medicine, University of Foggia, via L. Pinto c/o OO.RR., 71100, Foggia, Italy
| | - Carmela Mazzoccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028, Rionero in Vulture, Italy
| | - Monica Salerno
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania - A.O.U. "Policlinico - V. Emanuele", via S. Sofia, 87 - Sector 10, Building B - 95123, Catania, Italy
| | - Francesco Sessa
- Department of Clinical and Experimental Medicine, University of Foggia, via L. Pinto c/o OO.RR., 71100, Foggia, Italy
| | - Gabriele Sani
- Department of Neuroscience, Section of Psychiatry, Università Cattolica del Sacro Cuore, Roma, Italy.,Department of Psychiatry, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Cristoforo Pomara
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania - A.O.U. "Policlinico - V. Emanuele", via S. Sofia, 87 - Sector 10, Building B - 95123, Catania, Italy
| | - Nazzareno Capitanio
- Department of Clinical and Experimental Medicine, University of Foggia, via L. Pinto c/o OO.RR., 71100, Foggia, Italy
| | - Claudia Piccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028, Rionero in Vulture, Italy. .,Department of Clinical and Experimental Medicine, University of Foggia, via L. Pinto c/o OO.RR., 71100, Foggia, Italy.
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12
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Fresta CG, Fidilio A, Lazzarino G, Musso N, Grasso M, Merlo S, Amorini AM, Bucolo C, Tavazzi B, Lazzarino G, Lunte SM, Caraci F, Caruso G. Modulation of Pro-Oxidant and Pro-Inflammatory Activities of M1 Macrophages by the Natural Dipeptide Carnosine. Int J Mol Sci 2020; 21:ijms21030776. [PMID: 31991717 PMCID: PMC7038063 DOI: 10.3390/ijms21030776] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/23/2019] [Accepted: 01/22/2020] [Indexed: 12/21/2022] Open
Abstract
Carnosine is a natural endogenous dipeptide widely distributed in mammalian tissues, existing at particularly high concentrations in the muscles and brain and possesses well-characterized antioxidant and anti-inflammatory activities. In an in vitro model of macrophage activation, induced by lipopolysaccharide + interferon-gamma (LPS + IFN-γ), we here report the ability of carnosine to modulate pro-oxidant and pro-inflammatory activities of macrophages, representing the primary cell type that is activated as a part of the immune response. An ample set of parameters aimed to evaluate cytotoxicity (MTT assay), energy metabolism (HPLC), gene expressions (high-throughput real-time PCR (qRT-PCR)), protein expressions (western blot) and nitric oxide production (qRT-PCR and HPLC), was used to assess the effects of carnosine on activated macrophages challenged with a non cytotoxic LPS (100 ng/mL) + IFN-γ (600 U/mL) concentration. In our experimental model, main carnosine beneficial effects were: (1) the modulation of nitric oxide production and metabolism; (2) the amelioration of the macrophage energy state; (3) the decrease of the expressions of pro-oxidant enzymes (Nox-2, Cox-2) and of the lipid peroxidation product malondialdehyde; (4) the restoration and/or increase of the expressions of antioxidant enzymes (Gpx1, SOD-2 and Cat); (5) the increase of the transforming growth factor-β1 (TGF-β1) and the down-regulation of the expressions of interleukins 1β and 6 (IL-1β and IL-6) and 6) the increase of the expressions of Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) and heme oxygenase-1 (HO-1). According to these results carnosine is worth being tested in the treatment of diseases characterized by elevated levels of oxidative stress and inflammation (atherosclerosis, cancer, depression, metabolic syndrome, and neurodegenerative diseases).
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Affiliation(s)
- Claudia G. Fresta
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA; (C.G.F.); (S.M.L.)
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA
| | - Annamaria Fidilio
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (A.F.); (M.G.); (F.C.)
| | - Giacomo Lazzarino
- UniCamillus—Saint Camillus International University of Health Sciences, 00131 Rome, Italy;
| | - Nicolò Musso
- Bio-nanotech Research and Innovation Tower (BRIT), University of Catania, 95125 Catania, Italy;
| | - Margherita Grasso
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (A.F.); (M.G.); (F.C.)
- Oasi Research Institute—IRCCS, 94018 Troina (EN), Italy
| | - Sara Merlo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
| | - Angela M. Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
| | - Claudio Bucolo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, 00168 Rome, Italy;
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
- Correspondence: (G.L.); (G.C.)
| | - Susan M. Lunte
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA; (C.G.F.); (S.M.L.)
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA
- Department of Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA
| | - Filippo Caraci
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (A.F.); (M.G.); (F.C.)
- Oasi Research Institute—IRCCS, 94018 Troina (EN), Italy
| | - Giuseppe Caruso
- Oasi Research Institute—IRCCS, 94018 Troina (EN), Italy
- Correspondence: (G.L.); (G.C.)
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Dichloroacetate (DCA) and Cancer: An Overview towards Clinical Applications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:8201079. [PMID: 31827705 PMCID: PMC6885244 DOI: 10.1155/2019/8201079] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/12/2019] [Accepted: 10/11/2019] [Indexed: 12/19/2022]
Abstract
An extensive body of literature describes anticancer property of dichloroacetate (DCA), but its effective clinical administration in cancer therapy is still limited to clinical trials. The occurrence of side effects such as neurotoxicity as well as the suspicion of DCA carcinogenicity still restricts the clinical use of DCA. However, in the last years, the number of reports supporting DCA employment against cancer increased also because of the great interest in targeting metabolism of tumour cells. Dissecting DCA mechanism of action helped to understand the bases of its selective efficacy against cancer cells. A successful coadministration of DCA with conventional chemotherapy, radiotherapy, other drugs, or natural compounds has been tested in several cancer models. New drug delivery systems and multiaction compounds containing DCA and other drugs seem to ameliorate bioavailability and appear more efficient thanks to a synergistic action of multiple agents. The spread of reports supporting the efficiency of DCA in cancer therapy has prompted additional studies that let to find other potential molecular targets of DCA. Interestingly, DCA could significantly affect cancer stem cell fraction and contribute to cancer eradication. Collectively, these findings provide a strong rationale towards novel clinical translational studies of DCA in cancer therapy.
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14
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Tataranni T, Mazzoccoli C, Agriesti F, De Luca L, Laurenzana I, Simeon V, Ruggieri V, Pacelli C, Della Sala G, Musto P, Capitanio N, Piccoli C. Deferasirox drives ROS-mediated differentiation and induces interferon-stimulated gene expression in human healthy haematopoietic stem/progenitor cells and in leukemia cells. Stem Cell Res Ther 2019; 10:171. [PMID: 31196186 PMCID: PMC6567456 DOI: 10.1186/s13287-019-1293-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 05/15/2019] [Accepted: 05/31/2019] [Indexed: 12/11/2022] Open
Abstract
Background Administration of the iron chelator deferasirox (DFX) in transfusion-dependent patients occasionally results in haematopoiesis recovery by a mechanism remaining elusive. This study aimed to investigate at a molecular level a general mechanism underlying DFX beneficial effects on haematopoiesis, both in healthy and pathological conditions. Methods Human healthy haematopoietic stem/progenitor cells (HS/PCs) and three leukemia cell lines were treated with DFX. N-Acetyl cysteine (NAC) and fludarabine were added as antioxidant and STAT1 inhibitor, respectively. In vitro colony-forming assays were assessed both in healthy and in leukemia cells. Intracellular and mitochondrial reactive oxygen species (ROS) as well as mitochondrial content were assessed by cytofluorimetric and confocal microscopy analysis; mtDNA was assessed by qRT-PCR. Differentiation markers were monitored by cytofluorimetric analysis. Gene expression analysis (GEA) was performed on healthy HS/PCs, and differently expressed genes were validated in healthy and leukemia cells by qRT-PCR. STAT1 expression and phosphorylation were assessed by Western blotting. Data were compared by an unpaired Student t test or one-way ANOVA. Results DFX, at clinically relevant concentrations, increased the clonogenic capacity of healthy human CD34+ HS/PCs to form erythroid colonies. Extension of this analysis to human-derived leukemia cell lines Kasumi-1, K562 and HL60 confirmed DFX capacity to upregulate the expression of specific markers of haematopoietic commitment. Notably, the abovementioned DFX-induced effects are all prevented by the antioxidant NAC and accompanied with overproduction of mitochondria-generated reactive oxygen species (ROS) and increase of mitochondrial content and mtDNA copy number. GEA unveiled upregulation of genes linked to interferon (IFN) signalling and tracked back to hyper-phosphorylation of STAT1. Treatment of leukemic cell lines with NAC prevented the DFX-mediated phosphorylation of STAT1 as well as the expression of the IFN-stimulated genes. However, STAT1 inhibition by fludarabine was not sufficient to affect differentiation processes in leukemic cell lines. Conclusions These findings suggest a significant involvement of redox signalling as a major regulator of multiple DFX-orchestrated events promoting differentiation in healthy and tumour cells. The understanding of molecular mechanisms underlying the haematological response by DFX would enable to predict patient’s ability to respond to the drug, to extend treatment to other patients or to anticipate the treatment, regardless of the iron overload. Electronic supplementary material The online version of this article (10.1186/s13287-019-1293-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tiziana Tataranni
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy
| | - Carmela Mazzoccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy
| | - Francesca Agriesti
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy
| | - Luciana De Luca
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy
| | - Ilaria Laurenzana
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy
| | - Vittorio Simeon
- Department of Public, Clinical and Preventive Medicine, Medical Statistics Unit, University of Campania Luigi Vanvitelli, Caserta, Italy
| | - Vitalba Ruggieri
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy
| | - Consiglia Pacelli
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Gerardo Della Sala
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy
| | - Pellegrino Musto
- Hematology Department of Basilicata, IRCCS-CROB Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Nazzareno Capitanio
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Claudia Piccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy. .,Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
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15
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Tataranni T, Agriesti F, Pacelli C, Ruggieri V, Laurenzana I, Mazzoccoli C, Sala GD, Panebianco C, Pazienza V, Capitanio N, Piccoli C. Dichloroacetate Affects Mitochondrial Function and Stemness-Associated Properties in Pancreatic Cancer Cell Lines. Cells 2019; 8:cells8050478. [PMID: 31109089 PMCID: PMC6562462 DOI: 10.3390/cells8050478] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 12/14/2022] Open
Abstract
Targeting metabolism represents a possible successful approach to treat cancer. Dichloroacetate (DCA) is a drug known to divert metabolism from anaerobic glycolysis to mitochondrial oxidative phosphorylation by stimulation of PDH. In this study, we investigated the response of two pancreatic cancer cell lines to DCA, in two-dimensional and three-dimension cell cultures, as well as in a mouse model. PANC-1 and BXPC-3 treated with DCA showed a marked decrease in cell proliferation and migration which did not correlate with enhanced apoptosis indicating a cytostatic rather than a cytotoxic effect. Despite PDH activation, DCA treatment resulted in reduced mitochondrial oxygen consumption without affecting glycolysis. Moreover, DCA caused enhancement of ROS production, mtDNA, and of the mitophagy-marker LC3B-II in both cell lines but reduced mitochondrial fusion markers only in BXPC-3. Notably, DCA downregulated the expression of the cancer stem cells markers CD24/CD44/EPCAM only in PANC-1 but inhibited spheroid formation/viability in both cell lines. In a xenograft pancreatic cancer mouse-model DCA treatment resulted in retarding cancer progression. Collectively, our results clearly indicate that the efficacy of DCA in inhibiting cancer growth mechanistically depends on the cell phenotype and on multiple off-target pathways. In this context, the novelty that DCA might affect the cancer stem cell compartment is therapeutically relevant.
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Affiliation(s)
- Tiziana Tataranni
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture (Pz), Italy.
| | - Francesca Agriesti
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture (Pz), Italy.
| | - Consiglia Pacelli
- Department of Clinical and Experimental Medicine, University of Foggia, 71100 Foggia, Italy.
| | - Vitalba Ruggieri
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture (Pz), Italy.
| | - Ilaria Laurenzana
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture (Pz), Italy.
| | - Carmela Mazzoccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture (Pz), Italy.
| | - Gerardo Della Sala
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture (Pz), Italy.
| | - Concetta Panebianco
- Division of Gastroenterology, IRCCS "Casa Sollievo della Sofferenza" Hospital, 71013 San Giovanni Rotondo, Italy.
| | - Valerio Pazienza
- Division of Gastroenterology, IRCCS "Casa Sollievo della Sofferenza" Hospital, 71013 San Giovanni Rotondo, Italy.
| | - Nazzareno Capitanio
- Department of Clinical and Experimental Medicine, University of Foggia, 71100 Foggia, Italy.
| | - Claudia Piccoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture (Pz), Italy.
- Department of Clinical and Experimental Medicine, University of Foggia, 71100 Foggia, Italy.
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Panebianco C, Villani A, Pazienza V. High Levels of Prebiotic Resistant Starch in Diet Modulate Gene Expression and Metabolomic Profile in Pancreatic Cancer Xenograft Mice. Nutrients 2019; 11:nu11040709. [PMID: 30934731 PMCID: PMC6521226 DOI: 10.3390/nu11040709] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/19/2019] [Accepted: 03/25/2019] [Indexed: 12/28/2022] Open
Abstract
Cancer initiation and protection mainly derives from a systemic metabolic environment regulated by dietary patterns. Less is known about the impact of nutritional interventions in people with a diagnosis of cancer. The aim of our study was to investigate the effect of a diet rich in resistant starch (RS) on cell pathways modulation and metabolomic phenotype in pancreatic cancer xenograft mice. RNA-Seq experiments on tumor tissue showed that 25 genes resulted in dysregulated pancreatic cancer in mice fed with an RS diet, as compared to those fed with control diet. Moreover, in these two different mice groups, six serum metabolites were deregulated as detected by LC–MS analysis. A bioinformatic prediction analysis showed the involvement of the differentially expressed genes on insulin receptor signaling, circadian rhythm signaling, and cancer drug resistance among the three top canonical pathways, whilst cell death and survival, gene expression, and neurological disease were among the three top disease and biological functions. These findings shed light on the genomic and metabolic phenotype, contributing to the knowledge of the mechanisms through which RS may act as a potential supportive approach for enhancing the efficacy of existing cancer treatments.
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Affiliation(s)
- Concetta Panebianco
- Gastroenterology Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy.
| | - Annacandida Villani
- Gastroenterology Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy.
| | - Valerio Pazienza
- Gastroenterology Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy.
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