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Bonde A, Eskesen TG, Steinmetz J, Schoof EM, Blicher LHD, Rasmussen LS, Sillesen M. Hemorrhage and saline resuscitation are associated with epigenetic and proteomic reprogramming in the rat lung. Injury 2021; 52:2095-2103. [PMID: 33814129 DOI: 10.1016/j.injury.2021.03.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/15/2021] [Accepted: 03/20/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Epigenetic changes have been described in trauma patients in the form of histone acetylation events, but whether DNA-methylation occurs remains unknown. We hypothesized that the combination of hemorrhage and saline resuscitation would alter DNA-methylation and associated proteomic profiles in the rat lung. METHODS Ten rats were subjected to a pressure-controlled hemorrhage and resuscitation model consisting of hemorrhage to a mean arterial pressure (MAP) of 35mmHg for 90 minutes, followed by saline resuscitation to a MAP >70mmHg for 90 minutes (n=5) or sham (only anesthesia and cannulation). Lungs were harvested and subjected to reduced genome wide DNA-methylation analysis through bisulphite sequencing as well as proteomics analysis. Data was analyzed for differentially methylated regions and associated alterations in proteomic networks through a weighted correlation network analysis (WCNA). Pathway analysis was used to establish biological relevance of findings. RESULTS Hemorrhage and saline resuscitation were associated with differential methylation of 353 sites across the genome compared to the sham group. Of these, 30 were localized to gene promoter regions, 31 to exon regions and 87 to intron regions. Network analysis identified an association between hemorrhage/resuscitation and DNA-methylation events located to genes involved in areas of endothelial and immune response signaling. The associated proteomic response was characterized by activations of mRNA processing as well as endothelial Nitric Oxide Synthase (eNOS) metabolism. CONCLUSION We demonstrated an association between DNA-methylation and hemorrhage/saline resuscitation. These results suggest a potential role of DNA-methylation in the host response to injury.
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Affiliation(s)
- Alexander Bonde
- Department of Surgical Gastroenterology, Rigshospitalet, University of Copenhagen, Denmark; Center for Surgical Translational and Artificial Intelligence Research (CSTAR), Rigshospitalet, University of Copenhagen, Denmark
| | - Trine G Eskesen
- Department of Anesthesia, Center of Head and Orthopedics, Rigshospitalet, University of Copenhagen, Denmark
| | - Jacob Steinmetz
- Department of Anesthesia, Center of Head and Orthopedics, Rigshospitalet, University of Copenhagen, Denmark
| | - Erwin M Schoof
- Proteomics Core, Technical University of Denmark, Lyngby, Denmark
| | - Lene H D Blicher
- Proteomics Core, Technical University of Denmark, Lyngby, Denmark
| | - Lars S Rasmussen
- Department of Anesthesia, Center of Head and Orthopedics, Rigshospitalet, University of Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Denmark
| | - Martin Sillesen
- Department of Surgical Gastroenterology, Rigshospitalet, University of Copenhagen, Denmark; Center for Surgical Translational and Artificial Intelligence Research (CSTAR), Rigshospitalet, University of Copenhagen, Denmark.; Department of Clinical Medicine, University of Copenhagen, Denmark.
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Pisano S, Wang X, Garcia-Parra J, Gazze A, Edwards K, Feltracco V, Hu Y, He L, Gonzalez D, Francis LW, Conlan RS, Li C. Nanomicelles potentiate histone deacetylase inhibitor efficacy in vitro. Cancer Nanotechnol 2020. [DOI: 10.1186/s12645-020-00070-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Abstract
Background
Amphiphilic block copolymers used as nanomicelle drug carriers can effectively overcome poor drug solubility and specificity issues. Hence, these platforms have a broad applicability in cancer treatment. In this study, Pluronic F127 was used to fabricate nanomicelles containing the histone deacetylase inhibitor SAHA, which has an epigenetic-driven anti-cancer effect in several tumor types. SAHA-loaded nanomicelles were prepared using a thin-film drying method and characterized for size, surface charge, drug content, and drug release properties. Loaded particles were tested for in vitro activity and their effect on cell cycle and markers of cancer progression.
Results
Following detailed particle characterization, cell proliferation experiments demonstrated that SAHA-loaded nanomicelles more effectively inhibited the growth of HeLa and MCF-7 cell lines compared with free drug formulations. The 30 nm SAHA containing nanoparticles were able to release up to 100% of the encapsulated drug over a 72 h time window. Moreover, gene and protein expression analyses suggested that their cytoreductive effect was achieved through the regulation of p21 and p53 expression. SAHA was also shown to up-regulate E-cadherin expression, potentially influencing tumor migration.
Conclusions
This study highlights the opportunity to exploit pluronic-based nanomicelles for the delivery of compounds that regulate epigenetic processes, thus inhibiting cancer development and progression.
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Nawaz M, Malik I, Hameed M, Hussain Kuthu Z, Zhou J. Modifications of histones in parasites as drug targets. Vet Parasitol 2020; 278:109029. [PMID: 31978703 DOI: 10.1016/j.vetpar.2020.109029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 02/06/2023]
Abstract
Post-translational modifications of histones and histone modifying enzymes play important roles in gene regulations and other physiological processes in parasites. Inhibitors of such modifying enzymes could be useful as novel therapeutics against parasitic diseases or as chemical probes for investigation of epigenetics. Development of parasitic histone modulators has got rapid expansion in the last few years. A number of highly potent and selective compounds have been reported, together with extensive preclinical studies of their biological activity. Some of these compounds have been widely used in humans targeting cancer and are found non-toxic. This review summarizes the antiparasitic activities of histone and histone modifying enzymes inhibitors evaluated in last few years. As the current chemotherapy against parasites is still not satisfactory, therefore, such compounds represents good starting points for the discovery of effective antiparasitic drugs.
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Affiliation(s)
- Mohsin Nawaz
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Irfan Malik
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Mudassar Hameed
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Zulfiqar Hussain Kuthu
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Jinlin Zhou
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China.
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Lian F, Zhao C, Qu J, Lian Y, Cui Y, Shan L, Yan J. Icariin attenuates titanium particle-induced inhibition of osteogenic differentiation and matrix mineralization via miR-21-5p. Cell Biol Int 2018; 42:931-939. [PMID: 29500883 DOI: 10.1002/cbin.10957] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 02/24/2018] [Indexed: 12/18/2022]
Abstract
Inhibition of bone regeneration by wear debris is the main cause of peri-prosthetic osteolysis. Here, we investigated the effect of icariin on cell proliferation, apoptosis, osteogenic differentiation and matrix mineralization of osteoblasts in an in vitro model of titanium (Ti) particle-induced osteolysis. In the present study, MC3T3-E1 cells were pretreated with 10-8 M icariin for 4 h and then incubated with Ti particles (0.1 mg/mL). The results showed that Ti particles inhibited cell proliferation and promoted cell apoptosis of MC3T3-E1 cells, whereas icariin pretreatment blocked the effect of Ti particles. In addition, we found that icariin stimulation alone increased ALP activity, accelerated matrix mineralization and upregulated the levels of bone morphogenetic protein 2 (BMP2), Runt-related transcription factor 2 (Runx2), osteocalcin (OCN) and miR-21-5p; whereas, Ti particles alone exerted the opposite effects. Icariin partly reversed the effect of Ti particles on cell differentiation and mineralization. Twenty hours after transfection with antagomiR-21-5p or antagomiR-NC, the cells were pretreated with icariin for 4 h and then incubated with Ti particles. Further studies showed that partial knockdown of miR-21-5p abolished the promotion effect of icariin on osteoblast differentiation and matrix mineralization in Ti particle-stimulated MC3T3-E1 cells. In conclusion, miR-21-5p may be a potential pro-osteogenesis regulator and icariin may protect against Ti particle-induced inhibition of osteogenic differentiation and mineralization through upregulation of miR-21-5p.
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Affiliation(s)
- Feng Lian
- Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Chengbin Zhao
- Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Jing Qu
- Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Yongyun Lian
- Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Yong Cui
- Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Liang Shan
- Department of Outpatient, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Jinglong Yan
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
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Li SC, Kabeer MH. Spatiotemporal switching signals for cancer stem cell activation in pediatric origins of adulthood cancer: Towards a watch-and-wait lifetime strategy for cancer treatment. World J Stem Cells 2018; 10:15-22. [PMID: 29531638 PMCID: PMC5840533 DOI: 10.4252/wjsc.v10.i2.15] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/06/2018] [Accepted: 03/06/2018] [Indexed: 02/06/2023] Open
Abstract
Pediatric origin of cancer stem cell hypothesis holds great promise and potential in adult cancer treatment, however; the road to innovation is full of obstacles as there are plenty of questions left unanswered. First, the key question is to characterize the nature of such stem cells (concept). Second, the quantitative imaging of pediatric stem cells should be implemented (technology). Conceptually, pediatric stem cell origins of adult cancer are based on the notion that plasticity in early life developmental programming evolves local environments to cancer. Technologically, such imaging in children is lacking as all imaging is designed for adult patients. We postulate that the need for quantitative imaging to measure space-time changes of plasticity in early life developmental programming in children may trigger research and development of the imaging technology. Such quantitative imaging of pediatric origin of adulthood cancer will help develop a spatiotemporal monitoring system to determine cancer initiation and progression. Clinical validation of such speculative hypothesis-that cancer originates in a pediatric environment-will help implement a wait-and-watch strategy for cancer treatment.
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Affiliation(s)
- Shengwen Calvin Li
- Neuro-oncology and Stem Cell Research Laboratory, Children’s Hospital of Orange County, Department of Neurology, University of California-Irvine School of Medicine, Orange, CA 92868-3874, United States
| | - Mustafa H Kabeer
- Children's Hospital of Orange County, Department of Surgery, University of California-Irvine School of Medicine, Orange, CA 92868-3874, United States
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