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Liu BY, He XY, Zhuo RX, Cheng SX. Reversal of tumor malignization and modulation of cell behaviors through genome editing mediated by a multi-functional nanovector. NANOSCALE 2018; 10:21209-21218. [PMID: 30417194 DOI: 10.1039/c8nr07321j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To effectively reverse tumor malignization by genome editing, a multi-functional self-assembled nanovector for the delivery of a genome editing plasmid specifically to tumor cells was developed. The nanovector core consisting of protamine and calcium carbonate entrapping the CRISPR-Cas9 plasmid is decorated by aptamer incorporated heparin. Owing to a high affinity between a MUC1 specific aptamer and mucin 1 (MUC1) overexpressed in tumor cells as well as the interaction between AS1411 and nucleolin on the tumor cell surface and cell nuclei, the nanovector can target the nuclei of tumorous cells for the knockout of focal adhesion kinase (FAK). Notably, the genome editing mediated by our delivery systems can effectively modulate cell behaviors and thus reverse tumor malignization. Up-regulated p53, p16, p21, E-cadherin, CD80, MICA, MICB and Fas, together with down-regulated MMP-9, vimentin, VEGF, TGF-β, CD47 and CD133 in genome edited cells indicate that the genome editing system can inhibit cancerous cell growth, prevent tumor invasion and metastasis, reverse tumor-induced immune suppression, and inhibit cancer stemness. More importantly, the edited cells can maintain the modulated cellular function after succeeding subcultures.
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Affiliation(s)
- Bo-Ya Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China.
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Afrin S, Giampieri F, Gasparrini M, Forbes-Hernández TY, Cianciosi D, Reboredo-Rodriguez P, Zhang J, Manna PP, Daglia M, Atanasov AG, Battino M. Dietary phytochemicals in colorectal cancer prevention and treatment: A focus on the molecular mechanisms involved. Biotechnol Adv 2018; 38:107322. [PMID: 30476540 DOI: 10.1016/j.biotechadv.2018.11.011] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/20/2018] [Accepted: 11/20/2018] [Indexed: 12/11/2022]
Abstract
Worldwide, colorectal cancer (CRC) remains a major cancer type and leading cause of death. Unfortunately, current medical treatments are not sufficient due to lack of effective therapy, adverse side effects, chemoresistance and disease recurrence. In recent decades, epidemiologic observations have highlighted the association between the ingestion of several phytochemical-enriched foods and nutrients and the lower risk of CRC. According to preclinical studies, dietary phytochemicals exert chemopreventive effects on CRC by regulating different markers and signaling pathways; additionally, the gut microbiota plays a role as vital effector in CRC onset and progression, therefore, any dietary alterations in it may affect CRC occurrence. A high number of studies have displayed a key role of growth factors and their signaling pathways in the pathogenesis of CRC. Indeed, the efficiency of dietary phytochemicals to modulate carcinogenic processes through the alteration of different molecular targets, such as Wnt/β-catenin, PI3K/Akt/mTOR, MAPK (p38, JNK and Erk1/2), EGFR/Kras/Braf, TGF-β/Smad2/3, STAT1-STAT3, NF-кB, Nrf2 and cyclin-CDK complexes, has been proven, whereby many of these targets also represent the backbone of modern drug discovery programs. Furthermore, epigenetic analysis showed modified or reversed aberrant epigenetic changes exerted by dietary phytochemicals that led to possible CRC prevention or treatment. Therefore, our aim is to discuss the effects of some common dietary phytochemicals that might be useful in CRC as preventive or therapeutic agents. This review will provide new guidance for research, in order to identify the most studied phytochemicals, their occurrence in foods and to evaluate the therapeutic potential of dietary phytochemicals for the prevention or treatment of CRC by targeting several genes and signaling pathways, as well as epigenetic modifications. In addition, the results obtained by recent investigations aimed at improving the production of these phytochemicals in genetically modified plants have been reported. Overall, clinical data on phytochemicals against CRC are still not sufficient and therefore the preventive impacts of dietary phytochemicals on CRC development deserve further research so as to provide additional insights for human prospective studies.
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Affiliation(s)
- Sadia Afrin
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Ancona 60131, Italy
| | - Francesca Giampieri
- Nutrition and Food Science Group, Dept. of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo Campus, Vigo, (Spain); Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Ancona 60131, Italy
| | - Massimiliano Gasparrini
- Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Ancona 60131, Italy
| | - Tamara Y Forbes-Hernández
- Nutrition and Food Science Group, Dept. of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo Campus, Vigo, (Spain)
| | - Danila Cianciosi
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Ancona 60131, Italy
| | - Patricia Reboredo-Rodriguez
- Nutrition and Food Science Group, Dept. of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo Campus, Vigo, (Spain)
| | - Jiaojiao Zhang
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Ancona 60131, Italy
| | - Piera Pia Manna
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Ancona 60131, Italy
| | - Maria Daglia
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Pavia 27100, Italy
| | - Atanas Georgiev Atanasov
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, Vienna 1090, Austria; Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Postępu 36A Street, Jastrzebiec 05-552, Poland.
| | - Maurizio Battino
- Nutrition and Food Science Group, Dept. of Analytical and Food Chemistry, CITACA, CACTI, University of Vigo, Vigo Campus, Vigo, (Spain); Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Ancona 60131, Italy.
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Buhrmann C, Yazdi M, Popper B, Shayan P, Goel A, Aggarwal BB, Shakibaei M. Resveratrol Chemosensitizes TNF-β-Induced Survival of 5-FU-Treated Colorectal Cancer Cells. Nutrients 2018; 10:nu10070888. [PMID: 30002278 PMCID: PMC6073304 DOI: 10.3390/nu10070888] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 12/11/2022] Open
Abstract
Objective: Resveratrol, a safe and multitargeted natural agent, has been linked with inhibition of survival and invasion of tumor cells. Tumor Necrosis Factor-β (TNF-β) (Lymphotoxin α) is known as an inflammatory cytokine, however, the underlying mechanisms for its pro-carcinogenic effects and whether resveratrol can suppress these effects in the tumor microenvironment are poorly understood. Methods: We investigated whether resveratrol modulates the effects of 5-Fluorouracil (5-FU) and TNF-β on the malignant potential of human colorectal cancer (CRC) cells (HCT116) and their corresponding isogenic 5-FU-chemoresistant derived clones (HCT116R) in 3D-alginate tumor microenvironment. Results: CRC cells cultured in alginate were able to migrate from alginate and the numbers of migrated cells were significantly increased in the presence of TNF-β, similar to TNF-α, and dramatically decreased by resveratrol. We found that TNF-β promoted chemoresistance in CRC cells to 5-FU compared to control cultures and resveratrol chemosensitizes TNF-β-induced increased capacity for survival and invasion of HCT116 and HCT116R cells to 5-FU. Furthermore, TNF-β induced a more pronounced cancer stem cell-like (CSC) phenotype (CD133, CD44, ALDH1) and resveratrol suppressed formation of CSC cells in two different CRC cells and this was accompanied with a significant increase in apoptosis (caspase-3). It is noteworthy that resveratrol strongly suppressed TNF-β-induced activation of tumor-promoting factors (NF-κB, MMP-9, CXCR4) and epithelial-to-mesenchymal-transition-factors (increased vimentin and slug, decreased E-cadherin) in CRC cells. Conclusion: Our results clearly demonstrate for the first time that resveratrol modulates the TNF-β signaling pathway, induces apoptosis, suppresses NF-κB activation, epithelial-to-mesenchymal-transition (EMT), CSCs formation and chemosensitizes CRC cells to 5-FU in a tumor microenvironment.
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Affiliation(s)
- Constanze Buhrmann
- Musculoskeletal Research Group and Tumour Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany.
| | - Mina Yazdi
- Musculoskeletal Research Group and Tumour Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany.
| | - Bastian Popper
- Biomedical Center, Core facility animal models, Ludwig-Maximilian-University Munich, D-82152 Martinsried, Germany.
| | - Parviz Shayan
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran 141556453, Iran.
| | - Ajay Goel
- Center for Gastrointestinal Research; Center for Translational Genomics and Oncology, Baylor Scott & White Research Institute and Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, TX 75246, USA.
| | | | - Mehdi Shakibaei
- Musculoskeletal Research Group and Tumour Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilian-University Munich, Pettenkoferstrasse 11, D-80336 Munich, Germany.
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Beyond the Matrix: The Many Non-ECM Ligands for Integrins. Int J Mol Sci 2018; 19:ijms19020449. [PMID: 29393909 PMCID: PMC5855671 DOI: 10.3390/ijms19020449] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 01/21/2018] [Accepted: 01/30/2018] [Indexed: 12/17/2022] Open
Abstract
The traditional view of integrins portrays these highly conserved cell surface receptors as mediators of cellular attachment to the extracellular matrix (ECM), and to a lesser degree, as coordinators of leukocyte adhesion to the endothelium. These canonical activities are indispensable; however, there is also a wide variety of integrin functions mediated by non-ECM ligands that transcend the traditional roles of integrins. Some of these unorthodox roles involve cell-cell interactions and are engaged to support immune functions such as leukocyte transmigration, recognition of opsonization factors, and stimulation of neutrophil extracellular traps. Other cell-cell interactions mediated by integrins include hematopoietic stem cell and tumor cell homing to target tissues. Integrins also serve as cell-surface receptors for various growth factors, hormones, and small molecules. Interestingly, integrins have also been exploited by a wide variety of organisms including viruses and bacteria to support infectious activities such as cellular adhesion and/or cellular internalization. Additionally, the disruption of integrin function through the use of soluble integrin ligands is a common strategy adopted by several parasites in order to inhibit blood clotting during hematophagy, or by venomous snakes to kill prey. In this review, we strive to go beyond the matrix and summarize non-ECM ligands that interact with integrins in order to highlight these non-traditional functions of integrins.
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