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Przystupski D, Baczyńska D, Rossowska J, Kulbacka J, Ussowicz M. Calcium ion delivery by microbubble-assisted sonoporation stimulates cell death in human gastrointestinal cancer cells. Biomed Pharmacother 2024; 179:117339. [PMID: 39216448 DOI: 10.1016/j.biopha.2024.117339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Revised: 08/13/2024] [Accepted: 08/21/2024] [Indexed: 09/04/2024] Open
Abstract
Ultrasound-mediated cell membrane permeabilization - sonoporation, enhances drug delivery directly to tumor sites while reducing systemic side effects. The potential of ultrasound to augment intracellular calcium uptake - a critical regulator of cell death and proliferation - offers innovative alternative to conventional chemotherapy. However, calcium therapeutic applications remain underexplored in sonoporation studies. This research provides a comprehensive analysis of calcium sonoporation (CaSP), which combines ultrasound treatment with calcium ions and SonoVue microbubbles, on gastrointestinal cancer cells LoVo and HPAF-II. Initially, optimal sonoporation parameters were determined: an acoustic wave of 1 MHz frequency with a 50 % duty cycle at intensity of 2 W/cm2. Subsequently, various cellular bioeffects, such as viability, oxidative stress, metabolism, mitochondrial function, proliferation, and cell death, were assessed following CaSP treatment. CaSP significantly impaired cancer cell function by inducing oxidative and metabolic stress, evidenced by increased mitochondrial depolarization, decreased ATP levels, and elevated glucose uptake in a Ca2+ dose-dependent manner, leading to activation of the intrinsic apoptotic pathway. Cellular response to CaSP depended on the TP53 gene's mutational status: colon cancer cells were more susceptible to CaSP-induced apoptosis and G1 phase cell cycle arrest, whereas pancreatic cancer cells showed a higher necrotic response and G2 cell cycle arrest. These promising results encourage future research to optimize sonoporation parameters for clinical use, investigate synergistic effects with existing treatments, and assess long-term safety and efficacy in vivo. Our study highlights CaSP's clinical potential for improved safety and efficacy in cancer therapy, offering significant implications for the pharmaceutical and biomedical fields.
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Affiliation(s)
- Dawid Przystupski
- Department of Paediatric Bone Marrow Transplantation, Oncology and Haematology, Wroclaw Medical University, Borowska 213, Wroclaw 50-556, Poland.
| | - Dagmara Baczyńska
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, Wroclaw 50-556, Poland
| | - Joanna Rossowska
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, Wroclaw 53-114, Poland
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, Wroclaw 50-556, Poland; Department of Immunology and Bioelectrochemistry, State Research Institute Centre for Innovative Medicine, Santariškių 5, Vilnius 08410, Lithuania
| | - Marek Ussowicz
- Department of Paediatric Bone Marrow Transplantation, Oncology and Haematology, Wroclaw Medical University, Borowska 213, Wroclaw 50-556, Poland
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Hsu CW, Peterson CW, Eberhart CG, Meyer CF, Armstrong DK, Fiallos K, Campbell AA. Ocular adnexal sebaceous carcinoma in a patient with Li-Fraumeni syndrome. Orbit 2024:1-5. [PMID: 39072610 DOI: 10.1080/01676830.2024.2382268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Accepted: 07/14/2024] [Indexed: 07/30/2024]
Abstract
Li-Fraumeni syndrome (LFS) is caused by a pathogenic germline variant at the TP53 locus and is associated with an increased predisposition to a variety of cancers. The neoplasms most frequently associated with LFS are sarcomas, breast cancer, brain tumors, and adrenocortical carcinomas. In this case report, we present a 43-year-old male diagnosed with an ocular adnexal sebaceous carcinoma of the right upper eyelid who was confirmed to have LFS with subsequent genetic testing. The mutational profile of both the patient's genetic screen and tumor sequencing were congruent, demonstrating the same pathogenic loss-of-function TP53 variant. This case report highlights the importance of pursuing genetic testing in patients with a history of multiple tumor types, particularly those with uncommon diagnoses. In this case, confirmation of LFS had important implications for personalized patient care, including identification of contraindicated treatment interventions and the imaging modalities necessary for vigilant follow-up screening.
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Affiliation(s)
- Chia W Hsu
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Cornelia W Peterson
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Comparative Pathobiology, Tufts University Cummings School of Veterinary Medicine, North Grafton, Massachusetts, USA
| | - Charles G Eberhart
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Christian F Meyer
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Deborah K Armstrong
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Katie Fiallos
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ashley A Campbell
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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3
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Yan L, Shi J, Zhu J. Cellular and molecular events in colorectal cancer: biological mechanisms, cell death pathways, drug resistance and signalling network interactions. Discov Oncol 2024; 15:294. [PMID: 39031216 PMCID: PMC11265098 DOI: 10.1007/s12672-024-01163-1] [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: 05/27/2024] [Accepted: 07/15/2024] [Indexed: 07/22/2024] Open
Abstract
Colorectal cancer (CRC) is a leading cause of cancer-related deaths worldwide, affecting millions each year. It emerges from the colon or rectum, parts of the digestive system, and is closely linked to both genetic and environmental factors. In CRC, genetic mutations such as APC, KRAS, and TP53, along with epigenetic changes like DNA methylation and histone modifications, play crucial roles in tumor development and treatment responses. This paper delves into the complex biological underpinnings of CRC, highlighting the pivotal roles of genetic alterations, cell death pathways, and the intricate network of signaling interactions that contribute to the disease's progression. It explores the dysregulation of apoptosis, autophagy, and other cell death mechanisms, underscoring the aberrant activation of these pathways in CRC. Additionally, the paper examines how mutations in key molecular pathways, including Wnt, EGFR/MAPK, and PI3K, fuel CRC development, and how these alterations can serve as both diagnostic and prognostic markers. The dual function of autophagy in CRC, acting as a tumor suppressor or promoter depending on the context, is also scrutinized. Through a comprehensive analysis of cellular and molecular events, this research aims to deepen our understanding of CRC and pave the way for more effective diagnostics, prognostics, and therapeutic strategies.
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Affiliation(s)
- Lei Yan
- Medical Department, The Central Hospital of Shaoyang Affiliated to University of South China, Shaoyang, China
| | - Jia Shi
- Department of Obstetrics and Gynecology, The Central Hospital of Shaoyang Affiliated to University of South China, Shaoyang, China
| | - Jiazuo Zhu
- Department of Oncology, Xuancheng City Central Hospital, No. 117 Tong Road, Xuancheng, Anhui, China.
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4
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Lieu DJ, Crowder MK, Kryza JR, Tamilselvam B, Kaminski PJ, Kim IJ, Li Y, Jeong E, Enkhbaatar M, Chen H, Son SB, Mok H, Bradley KA, Phillips H, Blanke SR. Autophagy suppression in DNA damaged cells occurs through a newly identified p53-proteasome-LC3 axis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.21.595139. [PMID: 38826216 PMCID: PMC11142043 DOI: 10.1101/2024.05.21.595139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Macroautophagy is thought to have a critical role in shaping and refining cellular proteostasis in eukaryotic cells recovering from DNA damage. Here, we report a mechanism by which autophagy is suppressed in cells exposed to bacterial toxin-, chemical-, or radiation-mediated sources of genotoxicity. Autophagy suppression is directly linked to cellular responses to DNA damage, and specifically the stabilization of the tumor suppressor p53, which is both required and sufficient for regulating the ubiquitination and proteasome-dependent reduction in cellular pools of microtubule-associated protein 1 light chain 3 (LC3A/B), a key precursor of autophagosome biogenesis and maturation, in both epithelial cells and an ex vivo organoid model. Our data indicate that suppression of autophagy, through a newly identified p53-proteasome-LC3 axis, is a conserved cellular response to multiple sources of genotoxicity. Such a mechanism could potentially be important for realigning proteostasis in cells undergoing DNA damage repair.
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5
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Scelfo A, Barra V, Abdennur N, Spracklin G, Busato F, Salinas-Luypaert C, Bonaiti E, Velasco G, Bonhomme F, Chipont A, Tijhuis AE, Spierings DC, Guérin C, Arimondo P, Francastel C, Foijer F, Tost J, Mirny L, Fachinetti D. Tunable DNMT1 degradation reveals DNMT1/DNMT3B synergy in DNA methylation and genome organization. J Cell Biol 2024; 223:e202307026. [PMID: 38376465 PMCID: PMC10876481 DOI: 10.1083/jcb.202307026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/20/2023] [Accepted: 01/15/2024] [Indexed: 02/21/2024] Open
Abstract
DNA methylation (DNAme) is a key epigenetic mark that regulates critical biological processes maintaining overall genome stability. Given its pleiotropic function, studies of DNAme dynamics are crucial, but currently available tools to interfere with DNAme have limitations and major cytotoxic side effects. Here, we present cell models that allow inducible and reversible DNAme modulation through DNMT1 depletion. By dynamically assessing whole genome and locus-specific effects of induced passive demethylation through cell divisions, we reveal a cooperative activity between DNMT1 and DNMT3B, but not of DNMT3A, to maintain and control DNAme. We show that gradual loss of DNAme is accompanied by progressive and reversible changes in heterochromatin, compartmentalization, and peripheral localization. DNA methylation loss coincides with a gradual reduction of cell fitness due to G1 arrest, with minor levels of mitotic failure. Altogether, this system allows DNMTs and DNA methylation studies with fine temporal resolution, which may help to reveal the etiologic link between DNAme dysfunction and human disease.
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Affiliation(s)
- Andrea Scelfo
- Institut Curie, PSL Research University, Sorbonne Université, CNRS, UMR 144, Paris, France
| | - Viviana Barra
- Institut Curie, PSL Research University, Sorbonne Université, CNRS, UMR 144, Paris, France
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Palermo, Italy
| | - Nezar Abdennur
- Program in Bioinformatics and Integrative Biology, UMass Chan Medical School, Worcester, MA, USA
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - George Spracklin
- Department of Systems Biology, UMass Chan Medical School, Worcester, MA, USA
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Florence Busato
- Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Université Paris-Saclay, Evry, France
| | | | - Elena Bonaiti
- Institut Curie, PSL Research University, Sorbonne Université, CNRS, UMR 144, Paris, France
| | | | - Frédéric Bonhomme
- Epigenetic Chemical Biology, Institut Pasteur, CNRS UMR n°3523 Chem4Life, Université Paris Cité, Paris, France
| | - Anna Chipont
- Cytometry Platform, Institut Curie, Paris, France
| | - Andréa E. Tijhuis
- European Research Institute for the Biology of Ageing, University Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Diana C.J. Spierings
- European Research Institute for the Biology of Ageing, University Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Coralie Guérin
- Cytometry Platform, Institut Curie, Paris, France
- Université Paris Cité, INSERM, Paris, France
| | - Paola Arimondo
- Epigenetic Chemical Biology, Institut Pasteur, CNRS UMR n°3523 Chem4Life, Université Paris Cité, Paris, France
| | | | - Floris Foijer
- European Research Institute for the Biology of Ageing, University Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Jӧrg Tost
- Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Université Paris-Saclay, Evry, France
| | - Leonid Mirny
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Daniele Fachinetti
- Institut Curie, PSL Research University, Sorbonne Université, CNRS, UMR 144, Paris, France
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6
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Baldasso-Zanon A, Silva AO, Franco N, Picon RV, Lenz G, Lopez PLDC, Filippi-Chiela EC. The rational modulation of autophagy sensitizes colorectal cancer cells to 5-fluouracil and oxaliplatin. J Cell Biochem 2024; 125:e30517. [PMID: 38224178 DOI: 10.1002/jcb.30517] [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: 09/08/2023] [Revised: 11/25/2023] [Accepted: 12/18/2023] [Indexed: 01/16/2024]
Abstract
Colorectal cancer (CRC) is the third most common and deadliest cancer globally. Regimens using 5-fluorouracil (5FU) and Oxaliplatin (OXA) are the first-line treatment for CRC, but tumor recurrence is frequent. It is plausible to hypothesize that differential cellular responses are triggered after treatments depending on the genetic background of CRC cells and that the rational modulation of cell tolerance mechanisms like autophagy may reduce the regrowth of CRC cells. This study proposes investigating the cellular mechanisms triggered by CRC cells exposed to 5FU and OXA using a preclinical experimental design mimicking one cycle of the clinical regimen (i.e., 48 h of treatment repeated every 2 weeks). To test this, we treated CRC human cell lines HCT116 and HT29 with the 5FU and OXA, combined or not, for 48 h, followed by analysis for two additional weeks. Compared to single-drug treatments, the co-treatment reduced tumor cell regrowth, clonogenicity and stemness, phenotypes associated with tumor aggressiveness and poor prognosis in clinics. This effect was exerted by the induction of apoptosis and senescence only in the co-treatment. However, a week after treatment, cells that tolerated the treatment had high levels of autophagy features and restored the proliferative phenotype, resembling tumor recurrence. The pharmacologic suppression of early autophagy during its peak of occurrence, but not concomitant with chemotherapeutics, strongly reduced cell regrowth. Overall, our experimental model provides new insights into the cellular mechanisms that underlie the response and tolerance of CRC cells to 5FU and OXA, suggesting optimized, time-specific autophagy inhibition as a new avenue for improving the efficacy of current treatments.
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Affiliation(s)
- Andréa Baldasso-Zanon
- Programa de Pós-Graduação Ciências em Gastroenterologia e Hepatologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Centro de Pesquisas Experimental, Laboratório de Biologia Celular e Molecular, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Andrew Oliveira Silva
- Centro de Pesquisas Experimental, Laboratório de Biologia Celular e Molecular, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Unidade Centro RS, Faculdade Estácio do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Nayara Franco
- Programa de Pós-Graduação Ciências em Gastroenterologia e Hepatologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Centro de Pesquisas Experimental, Laboratório de Biologia Celular e Molecular, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Rafael V Picon
- Programa de Pós-Graduação Ciências em Gastroenterologia e Hepatologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Departamento de Medicina Interna, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Guido Lenz
- Departamento de Biofísica, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Patrícia Luciana da Costa Lopez
- Programa de Pós-Graduação Ciências em Gastroenterologia e Hepatologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Centro de Pesquisas Experimental, Laboratório de Biologia Celular e Molecular, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Eduardo C Filippi-Chiela
- Programa de Pós-Graduação Ciências em Gastroenterologia e Hepatologia, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Centro de Pesquisas Experimental, Laboratório de Biologia Celular e Molecular, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Departamento de Ciências Morfológicas, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
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Romo A, Rodríguez TM, Yu G, Dewey RA. Chimeric TβRII-SE/Fc overexpression by a lentiviral vector exerts strong antitumoral activity on colorectal cancer-derived cell lines in vitro and on xenografts. Cancer Gene Ther 2024; 31:174-185. [PMID: 37993543 DOI: 10.1038/s41417-023-00694-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 10/16/2023] [Accepted: 11/07/2023] [Indexed: 11/24/2023]
Abstract
The TGF signaling pathway is a key regulator of cancer progression. In this work, we report for the first time the antitumor activity of TβRII-SE/Fc, a novel peptibody whose targeting domain is comprised of the soluble endogenous isoform of the human TGF-β type II receptor (TβRII-SE). Overexpression of TβRIISE/Fc reduces in vitro cell proliferation and migration while inducing cell cycle arrest and apoptosis in human colorectal cancer-derived cell lines. Moreover, TβRII-SE/Fc overexpression reduces tumorigenicity in BALB/c nude athymic mice. Our results revealed that TRII-SE/Fc-expressing tumors were significantly reduced in size or were even incapable of developing. We also demonstrated that the novel peptibody has the ability to inhibit the canonical TGF-β and BMP signaling pathways while identifying SMAD-dependent and independent proteins involved in tumor progression that are modulated by TβRII-SE/Fc. These findings provide insights into the underlying mechanism responsible for the antitumor activity of TβRII-SE/Fc. Although more studies are required to demonstrate the effectiveness and safety of the novel peptibody as a new therapeutic for the treatment of cancer, our initial in vitro and in vivo results in human colorectal tumor-derived cell lines are highly encouraging. Our results may serve as the foundation for further research and development of a novel biopharmaceutical for oncology.
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Affiliation(s)
- Ana Romo
- Laboratorio de Terapia Génica y Células Madre, Instituto Tecnológico de Chascomús (INTECH), CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías, Universidad Nacional de San Martín (UNSAM), Buenos Aires, Argentina
- RADBIO S.A.S., Sunchales, Argentina
| | - Tania Melina Rodríguez
- Laboratorio de Terapia Génica y Células Madre, Instituto Tecnológico de Chascomús (INTECH), CONICET-UNSAM), Chascomús, Argentina
- Escuela de Bio y Nanotecnologías, Universidad Nacional de San Martín (UNSAM), Buenos Aires, Argentina
| | - Guo Yu
- Bio X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Ricardo Alfredo Dewey
- Laboratorio de Terapia Génica y Células Madre, Instituto Tecnológico de Chascomús (INTECH), CONICET-UNSAM), Chascomús, Argentina.
- Escuela de Bio y Nanotecnologías, Universidad Nacional de San Martín (UNSAM), Buenos Aires, Argentina.
- RADBIO S.A.S., Sunchales, Argentina.
- Centro de Medicina Traslacional (CEMET), Hospital de Alta Complejidad en Red "El Cruce" Nestor Carlos Kirchner, Florencio Varela, Argentina.
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Obreque J, Vergara-Gómez L, Venegas N, Weber H, Owen GI, Pérez-Moreno P, Leal P, Roa JC, Bizama C. Advances towards the use of gastrointestinal tumor patient-derived organoids as a therapeutic decision-making tool. Biol Res 2023; 56:63. [PMID: 38041132 PMCID: PMC10693174 DOI: 10.1186/s40659-023-00476-9] [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: 07/12/2023] [Accepted: 11/16/2023] [Indexed: 12/03/2023] Open
Abstract
In December 2022 the US Food and Drug Administration (FDA) removed the requirement that drugs in development must undergo animal testing before clinical evaluation, a declaration that now demands the establishment and verification of ex vivo preclinical models that closely represent tumor complexity and that can predict therapeutic response. Fortunately, the emergence of patient-derived organoid (PDOs) culture has enabled the ex vivo mimicking of the pathophysiology of human tumors with the reassembly of tissue-specific features. These features include histopathological variability, molecular expression profiles, genetic and cellular heterogeneity of parental tissue, and furthermore growing evidence suggests the ability to predict patient therapeutic response. Concentrating on the highly lethal and heterogeneous gastrointestinal (GI) tumors, herein we present the state-of-the-art and the current methodology of PDOs. We highlight the potential additions, improvements and testing required to allow the ex vivo of study the tumor microenvironment, as well as offering commentary on the predictive value of clinical response to treatments such as chemotherapy and immunotherapy.
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Affiliation(s)
- Javiera Obreque
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Office 526, 8330024, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile
- Centro de Prevención y Control de Cáncer (CECAN), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Luis Vergara-Gómez
- Centre of Excellence in Translational Medicine (CEMT) and Scientific and Technological Bioresource Nucleus (BIOREN), Biomedicine and Translational Research Lab, Universidad de La Frontera, 4810296, Temuco, Chile
| | - Nicolás Venegas
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Office 526, 8330024, Santiago, Chile
| | - Helga Weber
- Centre of Excellence in Translational Medicine (CEMT) and Scientific and Technological Bioresource Nucleus (BIOREN), Biomedicine and Translational Research Lab, Universidad de La Frontera, 4810296, Temuco, Chile
| | - Gareth I Owen
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile
- Centro de Prevención y Control de Cáncer (CECAN), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Pérez-Moreno
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Office 526, 8330024, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile
| | - Pamela Leal
- Centre of Excellence in Translational Medicine (CEMT) and Scientific and Technological Bioresource Nucleus (BIOREN), Biomedicine and Translational Research Lab, Universidad de La Frontera, 4810296, Temuco, Chile
| | - Juan Carlos Roa
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Office 526, 8330024, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile
- Centro de Prevención y Control de Cáncer (CECAN), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carolina Bizama
- Department of Pathology, School of Medicine, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Office 526, 8330024, Santiago, Chile.
- Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile.
- Advanced Center for Chronic Diseases, Pontificia Universidad Católica de Chile, Santiago, Chile.
- Centro de Prevención y Control de Cáncer (CECAN), Pontificia Universidad Católica de Chile, Santiago, Chile.
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Yermekova S, Orazgaliyeva M, Goncharova T, Rakhimbekova F, Kaidarova D, Shatkovskaya O. Characteristic Mutational Damages in Gastric and Colorectal Adenocarcinomas. Asian Pac J Cancer Prev 2023; 24:3939-3947. [PMID: 38019254 PMCID: PMC10772755 DOI: 10.31557/apjcp.2023.24.11.3939] [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: 08/08/2023] [Accepted: 11/19/2023] [Indexed: 11/30/2023] Open
Abstract
INTRODUCTION Gastric and colorectal adenocarcinomas are prevalent malignancies characterized by mutations in genes such as p53, RAS, and MDM2, which play crucial roles in tumorigenesis and cancer progression. Understanding the specific mutational patterns and their implications in these cancers was essential for identifying potential therapeutic targets. AIM To identify the nature of mutational disorders in the p53, p21Waf1, RAS and MDM2 genes, depending on the degree of cell differentiation by adenocarcinomas of the gastrointestinal tract. METHODS Genomic DNA was isolated from 200 samples of stomach tissue and 233 samples of colon and rectum adenocarcinomas. A total of 433 samples, including gastric adenocarcinomas, colon and rectum adenocarcinomas and adjacent tissues, were collected. RESULTS Genomic DNA was isolated, and mutational analysis of p53, RAS (HRAS, KRAS, NRAS), and MDM2 genes was performed using polymerase chain reaction, gel electrophoresis, and restriction enzyme analysis. The deletion of p53 exon-intron 5-6, as well as HRAS 12 and HRAS 61 mutations, were detected in 78% of poorly differentiated adenocarcinomas. The deletions of p53 exon-intron 7-9 - in 100% of moderately differentiated adenocarcinomas and 50-60% of adjacent tissues. The loss of WAF1 gene expression was registered in almost 90% of poorly differentiated adenocarcinomas and 20% of adjacent tissue samples. The KRAS and NRAS mutations in almost 63.9% of studied colon and rectal samples indicated autonomous cell growth. This explains the aggressive and metastatic growth of tumours and the ineffectiveness of growth factor inhibitors in colorectal cancer. Finding ways to influence specific substitutions in RAS genes could prevent and eliminate uncontrolled invasive tumour growth. CONCLUSION By identifying specific gene mutations and differences in genetic markers, the study provided insights for the development of targeted diagnostic methods and personalised treatment strategies, ultimately improving the clinical outcomes in the field of oncology.
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Affiliation(s)
- Saule Yermekova
- Department of Molecular Biology with General Chemistry and Biochemistry Course, Kazakh-Russian Medical University, Almaty, Republic of Kazakhstan.
| | - Madina Orazgaliyeva
- Molecular Genetic Research Center, Kazakh Institute of Oncology and Radiology, Almaty, Republic of Kazakhstan.
| | - Tatyana Goncharova
- Department of Scientific Management and Grant Research, Kazakh Institute of Oncology and Radiology, Almaty, Republic of Kazakhstan.
| | - Farida Rakhimbekova
- Department of Chemical Processes and Industrial Ecology, Satbayev University, Almaty, Republic of Kazakhstan.
| | - Dilyara Kaidarova
- Kazakh Institute of Oncology and Radiology, Almaty, Republic of Kazakhstan.
- Department of Oncology, Asfendiyarov Kazakh National Medical University, Almaty, Republic of Kazakhstan.
| | - Oxana Shatkovskaya
- Kazakh Institute of Oncology and Radiology, Almaty, Republic of Kazakhstan.
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10
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Moravčík R, Olejárová S, Zlacká J, Herichová I. Effect of miR-34a on the expression of clock and clock-controlled genes in DLD1 and Lovo human cancer cells with different backgrounds with respect to p53 functionality and 17β-estradiol-mediated regulation. PLoS One 2023; 18:e0292880. [PMID: 37831728 PMCID: PMC10575541 DOI: 10.1371/journal.pone.0292880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/01/2023] [Indexed: 10/15/2023] Open
Abstract
The small non-coding RNA miR-34a is a p53-regulated miRNA that acts as a tumour suppressor of colorectal cancer (CRC). Oncogenesis is also negatively influenced by deregulation of the circadian system in many types of tumours with various genetic backgrounds. As the clock gene per2 was recently recognized as one of the target genes of miR-34a, we focused on the miR-34a-mediated influence on the circadian oscillator in CRC cell lines DLD1 and LoVo, which differ in their p53 status. Previously, a sex-dependent association between the expression of per2 and that of miR-34a was demonstrated in CRC patients. Therefore, we also investigated the effect of 17β-estradiol (E2) on miR-34a oncostatic functions. miR-34a mimic caused a pronounced inhibition of per2 expression in both cell lines. Moreover, miR-34a mimic significantly inhibited bmal1 expression in LoVo and rev-erbα expression in DLD1 cells and induced clock gene expression in both cell lines. miR-34a mimic caused a pronounced decrease in sirt1 and cyclin D1 expression, which may be related to the inhibition of proliferation observed after mir-34a administration in DLD1 cells. E2 administration inhibited the migration and proliferation of DLD1 cells. E2 and miR-34a, when administered simultaneously, did not potentiate each other's effects. To conclude, miR-34a strongly influences the expression of components of the circadian oscillator without respect to p53 status and exerts its oncostatic effects via inhibition of sirt1 and cyclin D1 mRNA expression. E2 administration inhibits the growth of DLD1 cells; however, this effect seems to be independent of miR-34a-mediated action. With respect to the possible use of miR-34a in cancer treatment, clock genes can be considered as off-target genes, as changes in their expression induced by miR-34a treatment do not contribute to the oncostatic functions of miR-34a. Possible ambiguous oncogenic characteristics should be taken into consideration in future clinical studies focused on miR-34a.
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Affiliation(s)
- Roman Moravčík
- Faculty of Natural Sciences, Department of Animal Physiology and Ethology, Comenius University, Bratislava, Slovak Republic
| | - Soňa Olejárová
- Faculty of Natural Sciences, Department of Animal Physiology and Ethology, Comenius University, Bratislava, Slovak Republic
| | - Jana Zlacká
- Faculty of Natural Sciences, Department of Animal Physiology and Ethology, Comenius University, Bratislava, Slovak Republic
| | - Iveta Herichová
- Faculty of Natural Sciences, Department of Animal Physiology and Ethology, Comenius University, Bratislava, Slovak Republic
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11
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Shin D, Byun WS, Kang S, Kang I, Bae ES, An JS, Im JH, Park J, Kim E, Ko K, Hwang S, Lee H, Kwon Y, Ko YJ, Hong S, Nam SJ, Kim SB, Fenical W, Yoon YJ, Cho JC, Lee SK, Oh DC. Targeted and Logical Discovery of Piperazic Acid-Bearing Natural Products Based on Genomic and Spectroscopic Signatures. J Am Chem Soc 2023; 145:19676-19690. [PMID: 37642383 DOI: 10.1021/jacs.3c04699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
A targeted and logical discovery method was devised for natural products containing piperazic acid (Piz), which is biosynthesized from ornithine by l-ornithine N-hydroxylase (KtzI) and N-N bond formation enzyme (KtzT). Genomic signature-based screening of a bacterial DNA library (2020 strains) using polymerase chain reaction (PCR) primers targeting ktzT identified 62 strains (3.1%). The PCR amplicons of KtzT-encoding genes were phylogenetically analyzed to classify the 23 clades into two monophyletic groups, I and II. Cultivating hit strains in media supplemented with 15NH4Cl and applying 1H-15N heteronuclear multiple bond correlation (HMBC) along with 1H-15N heteronuclear single quantum coherence (HSQC) and 1H-15N HSQC-total correlation spectroscopy (HSQC-TOCSY) NMR experiments detected the spectroscopic signatures of Piz and modified Piz. Chemical investigation of the hit strains prioritized by genomic and spectroscopic signatures led to the identification of a new azinothricin congener, polyoxyperuin B seco acid (1), previously reported chloptosin (2) in group I, depsidomycin D (3) incorporating two dehydropiperazic acids (Dpz), and lenziamides A and B (4 and 5), structurally novel 31-membered cyclic decapeptides in group II. By consolidating the phylogenetic and chemical analyses, clade-structure relationships were elucidated for 19 of the 23 clades. Lenziamide A (4) inhibited STAT3 activation and induced G2/M cell cycle arrest, apoptotic cell death, and tumor growth suppression in human colorectal cancer cells. Moreover, lenziamide A (4) resensitized 5-fluorouracil (5-FU) activity in both in vitro cell cultures and the in vivo 5-FU-resistant tumor xenograft mouse model. This work demonstrates that the genomic and spectroscopic signature-based searches provide an efficient and general strategy for new bioactive natural products containing specific structural motifs.
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Affiliation(s)
- Daniel Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Woong Sub Byun
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sangwook Kang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ilnam Kang
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Eun Seo Bae
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Joon Soo An
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji Hyeon Im
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Jiyoon Park
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Eunji Kim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Keebeom Ko
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sunghoon Hwang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Honghui Lee
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Yun Kwon
- Research Institute of Pharmaceutical Science, College of Pharmacy, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Yoon-Joo Ko
- Laboratory of Nuclear Magnetic Resonance, National Center for Inter-University Research Facilities (NCIRF), Seoul National University, Seoul 08826, Republic of Korea
| | - Suckchang Hong
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Seung Bum Kim
- Department of Microbiology and Molecular Biology, College of Bioscience and Biotechnology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - William Fenical
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Yeo Joon Yoon
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
- MolGenBio Co., Ltd., Seoul 08826, Republic of Korea
| | - Jang-Cheon Cho
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Sang Kook Lee
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
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12
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Wang F, Dezfouli AB, Khosravi M, Sievert W, Stangl S, Schwab M, Wu Z, Steiger K, Ma H, Multhoff G. Cannabidiol-induced crosstalk of apoptosis and macroautophagy in colorectal cancer cells involves p53 and Hsp70. Cell Death Discov 2023; 9:286. [PMID: 37542074 PMCID: PMC10403543 DOI: 10.1038/s41420-023-01578-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 07/12/2023] [Accepted: 07/25/2023] [Indexed: 08/06/2023] Open
Abstract
Although it has been established that cannabidiol (CBD), the major non-psychoactive constituent of cannabis, exerts antitumoral activities, the exact mechanism(s) via which tumor cells are killed by CBD are not well understood. This study provides new insights into the potential mechanisms of CBD-induced mutual antagonism of apoptosis and macroautophagy using wild type (HCT116 p53wt, LS174T p53wt), knockout (HCT116 p53-/-) and mutant (SW480 p53mut) human colorectal cancer cells (CRC). CBD causes a more pronounced loss in the viability of p53wt cells than p53-/- and p53mut cells, and a 5-week treatment with CBD reduced the volume of HCT116 p53wt xenografts in mice, but had no effect on the volume of HCT116 p53-/- tumors. Mechanistically, we demonstrate that CBD only significantly elevates ROS production in cells harboring wild-type p53 (HCT116, LS174T) and that this is associated with an accumulation of PARP1. CBD-induced elevated ROS levels trigger G0/G1 cell cycle arrest, a reduction in CDK2, a p53-dependent caspase-8/9/3 activation and macroautophagy in p53wt cells. The ROS-induced macroautophagy which promotes the activation of keap1/Nrf2 pathway might be positively regulated by p53wt, since inhibition of p53 by pifithrin-α further attenuates autophagy after CBD treatment. Interestingly, an inhibition of heat shock protein 70 (Hsp70) expression significantly enhances caspase-3 mediated programmed cell death in p53wt cells, whereas autophagy-which is associated with a nuclear translocation of Nrf2-was blocked. Taken together, our results demonstrate an intricate interplay between apoptosis and macroautophagy in CBD-treated colorectal cancer cells, which is regulated by the complex interactions of p53wt and Hsp70.
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Affiliation(s)
- Fei Wang
- Radiation Immuno-Oncology Project Group, TranslaTUM-Central Institute for Translational Cancer Research, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
- Department of Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China.
| | - Ali Bashiri Dezfouli
- Radiation Immuno-Oncology Project Group, TranslaTUM-Central Institute for Translational Cancer Research, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Mohammad Khosravi
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Wolfgang Sievert
- Radiation Immuno-Oncology Project Group, TranslaTUM-Central Institute for Translational Cancer Research, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Stefan Stangl
- Radiation Immuno-Oncology Project Group, TranslaTUM-Central Institute for Translational Cancer Research, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Melissa Schwab
- Radiation Immuno-Oncology Project Group, TranslaTUM-Central Institute for Translational Cancer Research, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Zhiyuan Wu
- Radiation Immuno-Oncology Project Group, TranslaTUM-Central Institute for Translational Cancer Research, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Katja Steiger
- Institute for General Pathology and Pathological Anatomy, Technische Universität München, Munich, Germany
| | - Hu Ma
- Department of Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Gabriele Multhoff
- Radiation Immuno-Oncology Project Group, TranslaTUM-Central Institute for Translational Cancer Research, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
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13
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Rashno Z, Rismani E, Ghasemi JB, Mansouri M, Shabani M, Afgar A, Dabiri S, Rezaei Makhouri F, Hatami A, Harandi MF. Design of ion channel blocking, toxin-like Kunitz inhibitor peptides from the tapeworm, Echinococcus granulosus, with potential anti-cancer activity. Sci Rep 2023; 13:11465. [PMID: 37454225 PMCID: PMC10349847 DOI: 10.1038/s41598-023-38159-w] [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: 12/23/2022] [Accepted: 07/04/2023] [Indexed: 07/18/2023] Open
Abstract
Over-expression of K+ channels has been reported in human cancers and is associated with the poor prognosis of several malignancies. EAG1, a particular potassium ion channel, is widely expressed in the brain but poorly expressed in other normal tissues. Kunitz proteins are dominant in metazoan including the dog tapeworm, Echinococcus granulosus. Using computational analyses on one A-type potassium channel, EAG1, and in vitro cellular methods, including major cancer cell biomarkers expression, immunocytochemistry and whole-cell patch clamp, we demonstrated the anti-tumor activity of three synthetic small peptides derived from E. granulosus Kunitz4 protease inhibitors. Experiments showed induced significant apoptosis and inhibition of proliferation in both cancer cell lines via disruption in cell-cycle transition from the G0/G1 to S phase. Western blotting showed that the levels of cell cycle-related proteins including P27 and P53 were altered upon kunitz4-a and kunitz4-c treatment. Patch clamp analysis demonstrated a significant increase in spontaneous firing frequency in Purkinje neurons, and exposure to kunitz4-c was associated with an increase in the number of rebound action potentials after hyperpolarized current. This noteworthy component in nature could act as an ion channel blocker and is a potential candidate for cancer chemotherapy based on potassium channel blockage.
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Affiliation(s)
- Zahra Rashno
- Research Center for Hydatid Disease in Iran, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
| | - Elham Rismani
- Molecular Medicine Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Jahan B Ghasemi
- Faculty of Chemistry, School of Sciences, University of Tehran, Tehran, Iran
| | - Mehdi Mansouri
- Department of Agricultural Biotechnology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mohammad Shabani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afgar
- Research Center for Hydatid Disease in Iran, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
| | - Shahriar Dabiri
- Pathology and Stem Cell Research Center, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Abbas Hatami
- Pathology and Stem Cell Research Center, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Fasihi Harandi
- Research Center for Hydatid Disease in Iran, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran.
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14
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Aldwaik RK, Shian D, Thapa R, Vasudevan S, Ashqar MAA, Reich E, Kravchenko-Balasha N, Klutstein M. Overexpressed kinetochore genes are used by cancer cells as genome destabilizers and transformation catalysts. Transl Oncol 2023; 34:101703. [PMID: 37295219 DOI: 10.1016/j.tranon.2023.101703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/14/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Cancer cells have an altered transcriptome, which contributes to their abnormal behavior. Many tumors have high levels of kinetochore genes, which play important roles in genome stability. This overexpression could be utilized to destabilize cancer cell genomes, however this has not been proven specifically. We investigated the link between kinetochore gene overexpression, chromosomal number variations (CNVs) and genomic instability. Data on RNA expression and CNV from 12 different cancer types were evaluated using information theory. In all cancer types, we looked at the relationship between RNA expression and CNVs. Kinetochore gene expression was found to be substantially linked with CNV levels. In all cancer types, with the exception of thyroid cancer, highly expressed kinetochore genes were enriched in the most dominant cancer-specific co-expression subnetworks characterizing the largest patient subgroups. Except for thyroid cancer, kinetochore inner protein CENPA was among the transcripts most strongly associated with CNV values in all cancer types studied, with significantly higher expression levels in patients with high CNVs than in patients with low CNVs. CENPA function was investigated further in cell models by transfecting genomically stable (HCT116) and unstable (MCF7 and HT29) cancer cell lines using CENPA overexpression vectors. This overexpression increased the number of abnormal cell divisions in the stable cancer cell line HCT116 and, to a lesser extent, in the unstable cell lines MCF7 and HT29. Overexpression improved anchorage-independent growth properties of all cell lines. Our findings suggest that overexpression of kinetochore genes in general, and CENPA in particular, can cause genomic instability and cancer progression.
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Affiliation(s)
- Reem Kamal Aldwaik
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Denen Shian
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Roshina Thapa
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Swetha Vasudevan
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Mimi Abo-Ayoub Ashqar
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Eli Reich
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel
| | - Nataly Kravchenko-Balasha
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel.
| | - Michael Klutstein
- The Institute of Biomedical and Oral Research, Faculty of Dental Medicine, The Hebrew University of Jerusalem, P.O.B. 12272, Ein Kerem, Jerusalem 91120, Israel.
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15
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Shechter S, Ya'ar Bar S, Khattib H, Gage MJ, Avni D. Riok1, A Novel Potential Target in MSI-High p53 Mutant Colorectal Cancer Cells. Molecules 2023; 28:molecules28114452. [PMID: 37298928 DOI: 10.3390/molecules28114452] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/23/2023] [Accepted: 05/27/2023] [Indexed: 06/12/2023] Open
Abstract
The vulnerabilities of cancer cells constitute a promising strategy for drug therapeutics. This paper integrates proteomics, bioinformatics, and cell genotype together with in vitro cell proliferation assays to identify key biological processes and potential novel kinases that could account, at least in part, for the clinical differences observed in colorectal cancer (CRC) patients. This study started by focusing on CRC cell lines stratified by their microsatellite (MS) state and p53 genotype. It shows that cell-cycle checkpoint, metabolism of proteins and RNA, signal transduction, and WNT signaling processes are significantly more active in MSI-High p53-WT cell lines. Conversely, MSI-High cell lines with a mutant (Mut) p53 gene showed hyperactivation of cell signaling, DNA repair, and immune-system processes. Several kinases were linked to these phenotypes, from which RIOK1 was selected for additional exploration. We also included the KRAS genotype in our analysis. Our results showed that RIOK1's inhibition in CRC MSI-High cell lines was dependent on both the p53 and KRAS genotypes. Explicitly, Nintedanib showed relatively low cytotoxicity in MSI-High with both mutant p53 and KRAS (HCT-15) but no inhibition in p53 and KRAS WT (SW48) MSI-High cells. This trend was flipped in CRC MSI-High bearing opposite p53-KRAS genotypes (e.g., p53-Mut KRAS-WT or p53-WT KRAS-Mut), where observed cytotoxicity was more extensive compared to the p53-KRAS WT-WT or Mut-Mut cells, with HCT 116 (KRAS-Mut and p53-WT) being the most sensitive to RIOK1 inhibition. These results highlight the potential of our in silico computational approach to identify novel kinases in CRC sub-MSI-High populations as well as the importance of clinical genomics in determining drug potency.
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Affiliation(s)
- Sharon Shechter
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854-2874, USA
| | - Sapir Ya'ar Bar
- Department of Natural Compound, Nutrition, and Health, MIGAL Galilee Research Institute, Kiryat Shmona 1101600, Israel
| | - Hamdan Khattib
- Department of Natural Compound, Nutrition, and Health, MIGAL Galilee Research Institute, Kiryat Shmona 1101600, Israel
| | - Matthew J Gage
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854-2874, USA
| | - Dorit Avni
- Department of Natural Compound, Nutrition, and Health, MIGAL Galilee Research Institute, Kiryat Shmona 1101600, Israel
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16
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Rogers CB, Kram RE, Lin K, Myers CL, Sobeck A, Hendrickson EA, Bielinsky AK. Fanconi anemia-associated chromosomal radial formation is dependent on POLθ-mediated alternative end joining. Cell Rep 2023; 42:112428. [PMID: 37086407 DOI: 10.1016/j.celrep.2023.112428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/25/2023] [Accepted: 04/07/2023] [Indexed: 04/23/2023] Open
Abstract
Activation of the Fanconi anemia (FA) pathway after treatment with mitomycin C (MMC) is essential for preventing chromosome translocations termed "radials." When replication forks stall at MMC-induced interstrand crosslinks (ICLs), the FA pathway is activated to orchestrate ICL unhooking and repair of the DNA break intermediates. However, in FA-deficient cells, how ICL-associated breaks are resolved in a manner that leads to radials is unclear. Here, we demonstrate that MMC-induced radials are dependent on DNA polymerase theta (POLθ)-mediated alternative end joining (A-EJ). Specifically, we show that radials observed in FANCD2-/- cells are dependent on POLθ and DNA ligase III and occur independently of classical non-homologous end joining. Furthermore, treatment of FANCD2-/- cells with POLθ inhibitors abolishes radials and leads to the accumulation of breaks co-localizing with common fragile sites. Uniformly, these observations implicate A-EJ in radial formation and provide mechanistic insights into the treatment of FA pathway-deficient cancers with POLθ inhibitors.
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Affiliation(s)
- Colette B Rogers
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Rachel E Kram
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Kevin Lin
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Chad L Myers
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455, USA
| | - Alexandra Sobeck
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Eric A Hendrickson
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Anja-Katrin Bielinsky
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA.
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17
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Singh S, Rani H, Sharma N, Behl T, Zahoor I, Makeen HA, Albratty M, Alhazm HA, Aleya L. Targeting multifunctional magnetic nanowires for drug delivery in cancer cell death: an emerging paradigm. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:57219-57235. [PMID: 37010687 DOI: 10.1007/s11356-023-26650-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/21/2023] [Indexed: 05/10/2023]
Abstract
Apoptosis, often known as programmed cell death is a mechanism used by numerous species to maintain tissue homeostasis. The process leading to cell death is complicated because it requires the stimulation of caspases. According to several studies, nanowires have important medical benefits, can kill cells by adhering to cancer cells, destroying them, and killing the entire cell using a triple attack that integrates vibration, heat, and drug delivery to trigger apoptosis. The sewage effluents and industrial, fertilizer and organic wastes decomposition can produce elevated levels of chemicals in the environment which may interrupt the cell cycle and activate apoptosis. The purpose of this review is to give a thorough summary of the evidence that is currently available on apoptosis. Current review discussed topics like the morphological and biochemical alterations that occur during apoptosis, as well as the various mechanisms that cause cell death, including the intrinsic (or mitochondrial), extrinsic (or death receptor), and intrinsic endoplasmic reticulum pathway. The apoptosis reduction in cancer development is mediated by (i) an imbalance between pro- and anti-apoptotic proteins, such as members of the B-cell lymphoma-2 (BCL2) family of proteins, tumour protein 53 and inhibitor of apoptosis proteins, (ii) a reduction in caspase activity, and (iii) impaired death receptor signalling. This review does an excellent task of outlining the function of nanowires in both apoptosis induction and targeted drug delivery for cancer cells. A comprehensive summary of the relevance of nanowires synthesised for the purpose of inducing apoptosis in cancer cells has been compiled collectively.
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Affiliation(s)
- Sukhbir Singh
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, 133207, India
| | - Hema Rani
- GHG Khalsa College of Pharmacy, Gurusar Sadhar, Ludhiana, 141104, India
| | - Neelam Sharma
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, 133207, India.
| | - Tapan Behl
- School of Health Sciences &Technology, University of Petroleum and Energy Studies, Bidholi, Uttarakhand, 248007, Dehradun, India
| | - Ishrat Zahoor
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, 133207, India
| | - Hafiz A Makeen
- Pharmacy Practice Research Unit, Clinical Pharmacy Department, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Mohammed Albratty
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Hassan A Alhazm
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
- Substance Abuse and Toxicology Research Centre, Jazan University, Jazan, Saudi Arabia
| | - Lotfi Aleya
- Chrono-Environment Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, Besançon, France
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18
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Glutamine Starvation Affects Cell Cycle, Oxidative Homeostasis and Metabolism in Colorectal Cancer Cells. Antioxidants (Basel) 2023; 12:antiox12030683. [PMID: 36978930 PMCID: PMC10045305 DOI: 10.3390/antiox12030683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023] Open
Abstract
Cancer cells adjust their metabolism to meet energy demands. In particular, glutamine addiction represents a distinctive feature of several types of tumors, including colorectal cancer. In this study, four colorectal cancer cell lines (Caco-2, HCT116, HT29 and SW480) were cultured with or without glutamine. The growth and proliferation rate, colony-forming capacity, apoptosis, cell cycle, redox homeostasis and metabolomic analysis were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide test (MTT), flow cytometry, high-performance liquid chromatography and gas chromatography/mass spectrometry techniques. The results show that glutamine represents an important metabolite for cell growth and that its deprivation reduces the proliferation of colorectal cancer cells. Glutamine depletion induces cell death and cell cycle arrest in the GO/G1 phase by modulating energy metabolism, the amino acid content and antioxidant defenses. Moreover, the combined glutamine starvation with the glycolysis inhibitor 2-deoxy-D-glucose exerted a stronger cytotoxic effect. This study offers a strong rationale for targeting glutamine metabolism alone or in combination with glucose metabolism to achieve a therapeutic benefit in the treatment of colon cancer.
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Yang Y, Zhang M, Zhang Y, Liu K, Lu C. 5-Fluorouracil Suppresses Colon Tumor through Activating the p53-Fas Pathway to Sensitize Myeloid-Derived Suppressor Cells to FasL + Cytotoxic T Lymphocyte Cytotoxicity. Cancers (Basel) 2023; 15:1563. [PMID: 36900354 PMCID: PMC10001142 DOI: 10.3390/cancers15051563] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
Myelosuppression is a major adverse effect of 5-fluorouracil (5-FU) chemotherapy. However, recent findings indicate that 5-FU selectively suppresses myeloid-derived suppressor cells (MDSCs), to enhance antitumor immunity in tumor-bearing mice. 5-FU-mediated myelosuppression may thus have a beneficial effect for cancer patients. The molecular mechanism underlying 5-FU's suppression of MDSCs is currently unknown. We aimed at testing the hypothesis that 5-FU suppresses MDSCs through enhancing MDSC sensitivity to Fas-mediated apoptosis. We observed that, although FasL is highly expressed in T cells, Fas is weakly expressed in myeloid cells in human colon carcinoma, indicating that downregulation of Fas is a mechanism underlying myeloid cell survival and accumulation in human colon cancer. 5-FU treatment upregulated expression of both p53 and Fas, and knocking down p53 diminished 5-FU-induced Fas expression in MDSC-like cells, in vitro. 5-FU treatment also increased MDSC-like cell sensitivity to FasL-induced apoptosis in vitro. Furthermore, we determined that 5-FU therapy increased expression of Fas on MDSCs, suppressed MDSC accumulation, and increased CTL tumor infiltration in colon tumor-bearing mice. In human colorectal cancer patients, 5-FU chemotherapy decreased MDSC accumulation and increased CTL level. Our findings determine that 5-FU chemotherapy activates the p53-Fas pathway, to suppress MDSC accumulation, to increase CTL tumor infiltration.
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Affiliation(s)
- Yingcui Yang
- School of Life Sciences, Tianjin University, Tianjin 300072, China
| | - Mingqing Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 300121, China
| | - Yongdan Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 300121, China
| | - Kebin Liu
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta, GA 30912, USA
- Georgia Cancer Center, Augusta, GA 30912, USA
| | - Chunwan Lu
- School of Life Sciences, Tianjin University, Tianjin 300072, China
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20
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Kose O, Béal D, Motellier S, Pelissier N, Collin-Faure V, Blosi M, Bengalli R, Costa A, Furxhi I, Mantecca P, Carriere M. Physicochemical Transformations of Silver Nanoparticles in the Oro-Gastrointestinal Tract Mildly Affect Their Toxicity to Intestinal Cells In Vitro: An AOP-Oriented Testing Approach. TOXICS 2023; 11:199. [PMID: 36976964 PMCID: PMC10056345 DOI: 10.3390/toxics11030199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
The widespread use of silver nanoparticles (Ag NPs) in food and consumer products suggests the relevance of human oral exposure to these nanomaterials (NMs) and raises the possibility of adverse effects in the gastrointestinal tract. The aim of this study was to investigate the toxicity of Ag NPs in a human intestinal cell line, either uncoated or coated with polyvinylpyrrolidone (Ag PVP) or hydroxyethylcellulose (Ag HEC) and digested in simulated gastrointestinal fluids. Physicochemical transformations of Ag NPs during the different stages of in vitro digestion were identified prior to toxicity assessment. The strategy for evaluating toxicity was constructed on the basis of adverse outcome pathways (AOPs) showing Ag NPs as stressors. It consisted of assessing Ag NP cytotoxicity, oxidative stress, genotoxicity, perturbation of the cell cycle and apoptosis. Ag NPs caused a concentration-dependent loss of cell viability and increased the intracellular level of reactive oxygen species as well as DNA damage and perturbation of the cell cycle. In vitro digestion of Ag NPs did not significantly modulate their toxicological impact, except for their genotoxicity. Taken together, these results indicate the potential toxicity of ingested Ag NPs, which varied depending on their coating but did not differ from that of non-digested NPs.
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Affiliation(s)
- Ozge Kose
- Univ. Grenoble-Alpes, CEA, CNRS, IRIG, SyMMES, CIBEST, 38000 Grenoble, France
| | - David Béal
- Univ. Grenoble-Alpes, CEA, CNRS, IRIG, SyMMES, CIBEST, 38000 Grenoble, France
| | - Sylvie Motellier
- Univ. Grenoble-Alpes, Lab Measure Securing & Environm, LITEN, DTNM, STDC, CEA, 17 Av Martyrs, 38000 Grenoble, France
| | - Nathalie Pelissier
- Univ. Grenoble-Alpes, Lab of Advanced Characterization for Energy, LITEN, DTNM, STDC, CEA, 17 Av Martyrs, 38000 Grenoble, France
| | - Véronique Collin-Faure
- Univ. Grenoble-Alpes, CEA, CNRS UMR5249, IRIG DIESE CBM, Chem & Biol Met, 38054 Grenoble, France
| | - Magda Blosi
- CNR-ISTEC, Institute of Science and Technology for Ceramics-National Research Council of Italy, Via Granarolo 64, 48018 Faenza, Italy
| | - Rossella Bengalli
- Polaris Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza, 1, 20126 Milan, Italy
| | - Anna Costa
- CNR-ISTEC, Institute of Science and Technology for Ceramics-National Research Council of Italy, Via Granarolo 64, 48018 Faenza, Italy
| | - Irini Furxhi
- Transgero Ltd., Newcastle West, V42 V384 Limerick, Ireland
| | - Paride Mantecca
- Polaris Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza, 1, 20126 Milan, Italy
| | - Marie Carriere
- Univ. Grenoble-Alpes, CEA, CNRS, IRIG, SyMMES, CIBEST, 38000 Grenoble, France
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Khawaja H, Briggs R, Latimer CH, Rassel M, Griffin D, Hanson L, Bardelli A, Di Nicolantonio F, McDade SS, Scott CJ, Lambe S, Maurya M, Lindner AU, Prehn JH, Sousa J, Winnington C, LaBonte MJ, Ross S, Van Schaeybroeck S. Bcl-xL Is a Key Mediator of Apoptosis Following KRASG12C Inhibition in KRASG12C-mutant Colorectal Cancer. Mol Cancer Ther 2023; 22:135-149. [PMID: 36279564 PMCID: PMC9808374 DOI: 10.1158/1535-7163.mct-22-0301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/26/2022] [Accepted: 10/13/2022] [Indexed: 01/04/2023]
Abstract
Novel covalent inhibitors of KRASG12C have shown limited response rates in patients with KRASG12C-mutant (MT) colorectal cancer. Thus, novel KRASG12C inhibitor combination strategies that can achieve deep and durable responses are needed. Small-molecule KRASG12C inhibitors AZ'1569 and AZ'8037 were used. To identify novel candidate combination strategies for AZ'1569, we performed RNA sequencing, siRNA, and high-throughput drug screening. Top hits were validated in a panel of KRASG12CMT colorectal cancer cells and in vivo. AZ'1569-resistant colorectal cancer cells were generated and characterized. We found that response to AZ'1569 was heterogeneous across the KRASG12CMT models. AZ'1569 was ineffective at inducing apoptosis when used as a single agent or combined with chemotherapy or agents targeting the EGFR/KRAS/AKT axis. Using a systems biology approach, we identified the antiapoptotic BH3-family member BCL2L1/Bcl-xL as a top hit mediating resistance to AZ'1569. Further analyses identified acute increases in the proapoptotic protein BIM following AZ'1569 treatment. ABT-263 (navitoclax), a pharmacologic Bcl-2 family inhibitor that blocks the ability of Bcl-xL to bind and inhibit BIM, led to dramatic and universal apoptosis when combined with AZ'1569. Furthermore, this combination also resulted in dramatically attenuated tumor growth in KRASG12CMT xenografts. Finally, AZ'1569-resistant cells showed amplification of KRASG12C, EphA2/c-MET activation, increased proinflammatory chemokine profile and cross-resistance to several targeted agents. Importantly, KRAS amplification and AZ'1569 resistance were reversible upon drug withdrawal, arguing strongly for the use of drug holidays in the case of KRAS amplification. Taken together, combinatorial targeting of Bcl-xL and KRASG12C is highly effective, suggesting a novel therapeutic strategy for patients with KRASG12CMT colorectal cancer.
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Affiliation(s)
- Hajrah Khawaja
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Rebecca Briggs
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Cheryl H. Latimer
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Mustasin Rassel
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Daryl Griffin
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | | | - Alberto Bardelli
- Department of Oncology, University of Torino, Candiolo, Torino, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Frederica Di Nicolantonio
- Department of Oncology, University of Torino, Candiolo, Torino, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Simon S. McDade
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Christopher J. Scott
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Shauna Lambe
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Manisha Maurya
- Precision Medicine Centre of Excellence, Health Sciences Building, Queen's University Belfast, Belfast, United Kingdom
| | - Andreas U. Lindner
- Centre of Systems Medicine, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin 2, Ireland
| | - Jochen H.M. Prehn
- Centre of Systems Medicine, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin 2, Ireland
| | - Jose Sousa
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom.,Personal Health Data Science Group, Sano. Centre for Computational Personalised Medicine, Krakow, Poland
| | - Chris Winnington
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | - Melissa J. LaBonte
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom
| | | | - Sandra Van Schaeybroeck
- Drug Resistance Group, Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, United Kingdom.,Corresponding Author: Sandra Van Schaeybroeck, Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Lisburn Road 97, Belfast BT9 7AE, United Kingdom. Phone: 4428-9097-2954; Fax: 4428-9097-2776; E-mail:
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Zarneshan SN, Fakhri S, Bachtel G, Bishayee A. Exploiting pivotal mechanisms behind the senescence-like cell cycle arrest in cancer. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 135:1-19. [PMID: 37061329 DOI: 10.1016/bs.apcsb.2022.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Senescence-like cell cycle arrest is a critical state of cancer initiation and progression. Senescence is an irreversible cell cycle arrest in response to stress induced by extrinsic and intrinsic stimuli, including oxidative/genotoxic stress, oncogenic activation, irradiation, mitochondrial malfunction, or chemotherapeutic drugs. Several signaling pathways are involved in senescence-like cell cycle arrest, which is primarily induced by the activation of p53/p21-dependent apoptotic pathways and suppressing p16INK4A/retinoblastoma protein (pRB)-dependent oncogenic pathways. p21 is necessary for proper cell cycle advancement, is involved in cell death, and mediates p53-dependent cell cycle arrest caused by DNA damage. pRB's role in tumor suppression is through modulation of the G1 checkpoint in the cell cycle, as it has the ability to block S-phase entry and cell growth. The aforementioned pathways are also highly interconnected with significant crosstalk, such as cyclin-dependent kinases (CDK)/cyclin complexes, and the dimerization partner, RB-like, E2F and multi-vulval class B (DREAM) complex. The primary regulators of transcription are p53 and pRB, which maintain the senescent state through negative control of the cell cycle and process of tumorigenesis. Because CDK inhibitors comprise negative regulators of cell cycle progress, they are fundamental parts of each route. Prolonged overexpression of any of these four fundamental elements (p16, p53, p21, and pRB) suffices to induce senescence, demonstrating how the regulatory DREAM complex causes senescence and how its malfunction results in cell cycle progression. The present chapter aims at revealing the pivotal mechanisms behind the senescence-like cell cycle arrest in cancer.
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23
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Voon KJ, Sivasothy Y, Sundralingam U, Lalmahomed A, Goh APT. Cytotoxic Labdane Diterpenes, Norlabdane Diterpenes and Bis-Labdanic Diterpenes from the Zingiberaceae: A Systematic Review. Pharmaceuticals (Basel) 2022; 15:ph15121517. [PMID: 36558968 PMCID: PMC9783331 DOI: 10.3390/ph15121517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/12/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Over the years, labdane diterpenes, norlabdane diterpenes, and bis-labdanic diterpenes with cytotoxic activities have been identified across various families in the plant kingdom including the Zingiberaceae. The present review discusses the distribution of these labdane-type diterpenes within the Zingiberaceae; their extraction, isolation, and characterization from the respective Zingiberaceae species; the structural similarities and differences within each group and between the different groups of the labdane-type diterpenes; and their cytotoxic activities against breast, cervical, liver, colorectal, pancreatic, lung and prostate cancer cell lines. The review will also provide insight into how the cytotoxic activities of the labdane-type diterpenes are influenced by their structural features.
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24
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Solares MJ, Kelly DF. Complete Models of p53 Better Inform the Impact of Hotspot Mutations. Int J Mol Sci 2022; 23:ijms232315267. [PMID: 36499604 PMCID: PMC9740296 DOI: 10.3390/ijms232315267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Mutations in tumor suppressor genes often lead to cancerous phenotypes. Current treatments leverage signaling pathways that are often compromised by disease-derived deficiencies in tumor suppressors. P53 falls into this category as genetic mutations lead to physical changes in the protein that impact multiple cellular pathways. Here, we show the first complete structural models of mutated p53 to reveal how hotspot mutations physically deviate from the wild-type protein. We employed a recently determined structure for the p53 monomer to map seven frequent clinical mutations using computational modeling approaches. Results showed that missense mutations often changed the conformational structure of p53 in the DNA-binding site along with its electrostatic surface charges. We posit these changes may amplify the toxic effects of these hotspot mutations by destabilizing an important zinc ion coordination region in p53 to impede proper DNA interactions. These results highlight the imperative need for new studies on patient-derived proteins that may assist in redesigning structure-informed targeted therapies.
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Affiliation(s)
- Maria J. Solares
- Molecular, Cellular, and Integrative Biosciences Graduate Program, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA 16802, USA
| | - Deborah F. Kelly
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA 16802, USA
- Center for Structural Oncology, Pennsylvania State University, University Park, PA 16802, USA
- Correspondence:
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25
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Amaryllidaceae Alkaloids Decrease the Proliferation, Invasion, and Secretion of Clinically Relevant Cytokines by Cultured Human Colon Cancer Cells. Biomolecules 2022; 12:biom12091267. [PMID: 36139106 PMCID: PMC9496155 DOI: 10.3390/biom12091267] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/29/2022] [Accepted: 09/05/2022] [Indexed: 12/30/2022] Open
Abstract
Alkaloids isolated from members of the Amaryllidaceae plant family are promising anticancer agents. The purpose of the current study was to determine if the isocarbostyrils narciclasine, pancratistatin, lycorane, lycorine, crinane, and haemanthamine inhibit phenomena related to cancer progression in vitro. To achieve this, we examined the proliferation, adhesion, and invasion of cultured human colon cancer cells via MTT assay and Matrigel-coated Boyden chambers. In addition, Luminex assays were used to quantify the secretion of matrix metalloproteinases (MMP) and cytokines associated with poor clinical outcomes. We found that all alkaloids decreased cell proliferation regardless of TP53 status, with narciclasine exhibiting the greatest potency. The effects on cell proliferation also appear to be specific to cancer cells. Narciclasine, lycorine, and haemanthamine decrease both adhesion and invasion but with various potencies depending on the cell line. In addition, narciclasine, lycorine, and haemanthamine decreased the secretion of MMP-1, -2, and -7, as well as the secretion of the cytokines pentraxin 3 and vascular endothelial growth factor. In conclusion, the present study shows that Amaryllidaceae alkaloids decrease phenomena and cytokines associated with colorectal cancer progression, supporting future investigations regarding their potential as multifaceted drug candidates.
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26
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Ahmadi A, Sokunbi M, Patel T, Chang MW, Ahmad Z, Singh N. Influence of Critical Parameters on Cytotoxicity Induced by Mesoporous Silica Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2016. [PMID: 35745355 PMCID: PMC9228019 DOI: 10.3390/nano12122016] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 02/01/2023]
Abstract
Mesoporous Silica Nanoparticles (MSNs) have received increasing attention in biomedical applications due to their tuneable pore size, surface area, size, surface chemistry, and thermal stability. The biocompatibility of MSNs, although generally believed to be satisfactory, is unclear. Physicochemical properties of MSNs, such as diameter size, morphology, and surface charge, control their biological interactions and toxicity. Experimental conditions also play an essential role in influencing toxicological results. Therefore, the present study includes studies from the last five years to statistically analyse the effect of various physicochemical features on MSN-induced in-vitro cytotoxicity profiles. Due to non-normally distributed data and the presence of outliers, a Kruskal-Wallis H test was conducted on different physicochemical characteristics, including diameter sizes, zeta-potential measurements, and functionalisation of MSNs, based on the viability results, and statistical differences were obtained. Subsequently, pairwise comparisons were performed using Dunn's procedure with a Bonferroni correction for multiple comparisons. Other experimental parameters, such as type of cell line used, cell viability measurement assay, and incubation time, were also explored and analysed for statistically significant results.
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Affiliation(s)
- Amirsadra Ahmadi
- Leicester School of Allied Health Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (A.A.); (M.S.); (T.P.)
| | - Moses Sokunbi
- Leicester School of Allied Health Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (A.A.); (M.S.); (T.P.)
| | - Trisha Patel
- Leicester School of Allied Health Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (A.A.); (M.S.); (T.P.)
| | - Ming-Wei Chang
- Nanotechnology and Integrated Bioengineering Centre, Jordanstown Campus, University of Ulster, Newtownabbey BT37 0QB, UK;
| | - Zeeshan Ahmad
- Leicester School of Pharmaceutical Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK;
| | - Neenu Singh
- Leicester School of Allied Health Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (A.A.); (M.S.); (T.P.)
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27
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Ryu JY, Oh J, Kim SM, Kim WG, Jeong H, Ahn SA, Kim SH, Jang JY, Yoo BC, Kim CW, Lee CE. SOCS1 counteracts ROS-mediated survival signals and promotes apoptosis by modulating cell cycle to increase radiosensitivity of colorectal cancer cells. BMB Rep 2022. [PMID: 35321782 PMCID: PMC9058468 DOI: 10.5483/bmbrep.2022.55.4.191] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
As negative regulators of cytokine signaling pathways, suppressors of cytokine signaling (SOCS) proteins have been reported to possess both pro-tumor and anti-tumor functions. Our recent studies have demonstrated suppressive effects of SOCS1 on epithelial to mesenchymal signaling in colorectal cancer cells in response to fractionated ionizing radiation or oxidative stress. The objective of the present study was to determine the radiosensitizing action of SOCS1 as an anti-tumor mechanism in color-ectal cancer cell model. In HCT116 cells exposed to ionizing radiation, SOCS1 over-expression shifted cell cycle arrest from G2/M to G1 and promoted radiation-induced apoptosis in a p53-dependent manner with down-regulation of cyclin B and up-regulation of p21. On the other hand, SOCS1 knock-down resulted in a reduced apoptosis with a decrease in G1 arrest. The regulatory action of SOCS1 on the radiation response was mediated by inhibition of radiation-induced Jak3/STAT3 and Erk activities, thereby blocking G1 to S transition. Radiation-induced early ROS signal was responsible for the activation of Jak3/Erk/STAT3 that led to cell survival response. Our data col-lectively indicate that SOCS1 can promote radiosensitivity of colorectal cancer cells by counteracting ROS-mediated survival signal, thereby blocking cell cycle progression from G1 to S. The resulting increase in G1 arrest with p53 activation then contributes to the promotion of apoptotic response upon radiation. Thus, induction of SOCS1 expression may increase therapeutic efficacy of radiation in tumors with low SOCS1 levels.
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Affiliation(s)
- Ji-Yoon Ryu
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Jiyoung Oh
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Su-Min Kim
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Won-Gi Kim
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
- Colorectal Cancer Branch, Research Center, National Cancer Institute, Goyang 10408, Korea
| | - Hana Jeong
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Shin-Ae Ahn
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Seol-Hee Kim
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Ji-Young Jang
- Tumor Immunity Medical Research Center, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea
- Bioinfra Life Science Inc, Seoul 03127, Korea
| | - Byong Chul Yoo
- Colorectal Cancer Branch, Research Center, National Cancer Institute, Goyang 10408, Korea
| | - Chul Woo Kim
- Tumor Immunity Medical Research Center, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea
- Bioinfra Life Science Inc, Seoul 03127, Korea
| | - Choong-Eun Lee
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
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28
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Ryu JY, Oh J, Kim SM, Kim WG, Jeong H, Ahn SA, Kim SH, Jang JY, Yoo BC, Kim CW, Lee CE. SOCS1 counteracts ROS-mediated survival signals and promotes apoptosis by modulating cell cycle to increase radiosensitivity of colorectal cancer cells. BMB Rep 2022; 55:198-203. [PMID: 35321782 PMCID: PMC9058468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/09/2022] [Accepted: 03/03/2022] [Indexed: 09/17/2023] Open
Abstract
As negative regulators of cytokine signaling pathways, suppressors of cytokine signaling (SOCS) proteins have been reported to possess both pro-tumor and anti-tumor functions. Our recent studies have demonstrated suppressive effects of SOCS1 on epithelial to mesenchymal signaling in colorectal cancer cells in response to fractionated ionizing radiation or oxidative stress. The objective of the present study was to determine the radiosensitizing action of SOCS1 as an anti-tumor mechanism in colorectal cancer cell model. In HCT116 cells exposed to ionizing radiation, SOCS1 over-expression shifted cell cycle arrest from G2/M to G1 and promoted radiation-induced apoptosis in a p53-dependent manner with down-regulation of cyclin B and up-regulation of p21. On the other hand, SOCS1 knock-down resulted in a reduced apoptosis with a decrease in G1 arrest. The regulatory action of SOCS1 on the radiation response was mediated by inhibition of radiation-induced Jak3/STAT3 and Erk activities, thereby blocking G1 to S transition. Radiation-induced early ROS signal was responsible for the activation of Jak3/Erk/STAT3 that led to cell survival response. Our data collectively indicate that SOCS1 can promote radiosensitivity of colorectal cancer cells by counteracting ROS-mediated survival signal, thereby blocking cell cycle progression from G1 to S. The resulting increase in G1 arrest with p53 activation then contributes to the promotion of apoptotic response upon radiation. Thus, induction of SOCS1 expression may increase therapeutic efficacy of radiation in tumors with low SOCS1 levels. [BMB Reports 2022; 55(4): 198-203].
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Affiliation(s)
- Ji-Yoon Ryu
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Jiyoung Oh
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Su-Min Kim
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Won-Gi Kim
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
- Colorectal Cancer Branch, Research Center, National Cancer Institute, Goyang 10408, Korea
| | - Hana Jeong
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Shin-Ae Ahn
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Seol-Hee Kim
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
| | - Ji-Young Jang
- Tumor Immunity Medical Research Center, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea
- Bioinfra Life Science Inc, Seoul 03127, Korea
| | - Byong Chul Yoo
- Colorectal Cancer Branch, Research Center, National Cancer Institute, Goyang 10408, Korea
| | - Chul Woo Kim
- Tumor Immunity Medical Research Center, Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea
- Bioinfra Life Science Inc, Seoul 03127, Korea
| | - Choong-Eun Lee
- Laboratory of Immunology, Department of Biological Science, College of Natural Science, Sungkyunkwan University, Suwon 16419, Korea
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Islam SU, Ahmed MB, Sonn JK, Jin EJ, Lee YS. PRP4 Induces Epithelial–Mesenchymal Transition and Drug Resistance in Colon Cancer Cells via Activation of p53. Int J Mol Sci 2022; 23:ijms23063092. [PMID: 35328513 PMCID: PMC8955441 DOI: 10.3390/ijms23063092] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/16/2022] Open
Abstract
Pre-mRNA processing factor 4B (PRP4) promotes pre-mRNA splicing and signal transduction. Recent studies have shown that PRP4 modulates the assembly of actin cytoskeleton in cancer cells and induces epithelial–mesenchymal transition (EMT) and drug resistance. PRP4 displays kinase domain-like cyclin-dependent kinases and mitogen-activated protein kinases, making it capable of phosphorylating p53 and other target proteins. In the current study, we report that PRP4 induces drug resistance and EMT via direct binding to the p53 protein, inducing its phosphorylation. Moreover, PRP4 overexpression activates the transcription of miR-210 in a hypoxia-inducible factor 1α (HIF-1α)-dependent manner, which activates p53. The involvement of miR-210 in the activation of p53 was confirmed by utilizing si-miR210. si-miR210 blocked the PRP4-activated cell survival pathways and reversed the PRP4-induced EMT phenotype. Moreover, we used deferoxamine as a hypoxia-mimetic agent, and si-HIF to silence HIF-1α. This procedure demonstrated that PRP4-induced EMT and drug resistance emerged in response to consecutive activation of HIF-1α, miR-210, and p53 by PRP4 overexpression. Collectively, our findings suggest that the PRP4 contributes to EMT and drug resistance induction via direct interactions with p53 and actions that promote upregulation of HIF-1α and miR-210. We conclude that PRP4 is an essential factor promoting cancer development and progression. Specific PRP4 inhibition could benefit patients with colon cancer.
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Affiliation(s)
- Salman Ul Islam
- Department of Pharmacy, Cecos University, Hayatabad, Peshawar 25000, Pakistan;
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
| | - Muhammad Bilal Ahmed
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
| | - Jong-Kyung Sonn
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
| | - Eun-Jung Jin
- Department of Biological Science, College of Natural Science, Wonkwang University, Iksan 54538, Korea
- Correspondence: (E.-J.J.); (Y.-S.L.); Tel.: +82-63-8500-6197(E.-J.J.); +82-53-950-6353 (Y.-S.L.); Fax: +82-53-943-2762 (E.-J.J.)
| | - Young-Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
- Correspondence: (E.-J.J.); (Y.-S.L.); Tel.: +82-63-8500-6197(E.-J.J.); +82-53-950-6353 (Y.-S.L.); Fax: +82-53-943-2762 (E.-J.J.)
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The Class I HDAC Inhibitor, MS-275, Prevents Oxaliplatin-Induced Chronic Neuropathy and Potentiates Its Antiproliferative Activity in Mice. Int J Mol Sci 2021; 23:ijms23010098. [PMID: 35008525 PMCID: PMC8745279 DOI: 10.3390/ijms23010098] [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: 11/04/2021] [Revised: 12/17/2021] [Accepted: 12/17/2021] [Indexed: 12/18/2022] Open
Abstract
Oxaliplatin, the first-line chemotherapeutic agent against colorectal cancer (CRC), induces peripheral neuropathies, which can lead to dose limitation and treatment discontinuation. Downregulation of potassium channels, which involves histone deacetylase (HDAC) activity, has been identified as an important tuner of acute oxaliplatin-induced hypersensitivity. MS-275, a class I histone deacetylase inhibitor (HDACi), prevents acute oxaliplatin-induced peripheral neuropathy (OIPN). Moreover, MS-275 exerts anti-tumor activity in several types of cancers, including CRC. We thus hypothesized that MS-275 could exert both a preventive effect against OIPN and potentially a synergistic effect combined with oxaliplatin against CRC development. We first used RNAseq to assess transcriptional changes occurring in DRG neurons from mice treated by repeated injection of oxaliplatin. Moreover, we assessed the effects of MS-275 on chronic oxaliplatin-induced peripheral neuropathy development in vivo on APCMin/+ mice and on cancer progression when combined with oxaliplatin, both in vivo on APCMin/+ mice and in a mouse model of an orthotopic allograft of the CT26 cell line as well as in vitro in T84 and HT29 human CRC cell lines. We found 741 differentially expressed genes (DEGs) between oxaliplatin- and vehicle-treated animals. While acute OIPN is known as a channelopathy involving HDAC activity, chronic OIPN exerts weak ion channel transcriptional changes and no HDAC expression changes in peripheral neurons from OIPN mice. However, MS-275 prevents the development of sensory neuropathic symptoms induced by repeated oxaliplatin administration in APCMin/+ mice. Moreover, combined with oxaliplatin, MS-275 also exerts synergistic antiproliferative and increased survival effects in CT26-bearing mice. Consistently, combined drug associations exert synergic apoptotic and cell death effects in both T84 and HT29 human CRC cell lines. Our results strongly suggest combining oxaliplatin and MS-275 administration in CRC patients in order to potentiate the antiproliferative action of chemotherapy, while preventing its neurotoxic effect.
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A Quantitative Systems Approach to Define Novel Effects of Tumour p53 Mutations on Binding Oncoprotein MDM2. Int J Mol Sci 2021; 23:ijms23010053. [PMID: 35008477 PMCID: PMC8744954 DOI: 10.3390/ijms23010053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/13/2021] [Accepted: 12/16/2021] [Indexed: 11/30/2022] Open
Abstract
Understanding transient protein interactions biochemically at the proteome scale remains a long-standing challenge. Current tools developed to study protein interactions in high-throughput measure stable protein complexes and provide binary readouts; they do not elucidate dynamic and weak protein interactions in a proteome. The majority of protein interactions are transient and cover a wide range of affinities. Nucleic acid programmable protein arrays (NAPPA) are self-assembling protein microarrays produced by freshly translating full-length proteins in situ on the array surface. Herein, we have coupled NAPPA to surface plasmon resonance imaging (SPRi) to produce a novel label-free platform that measures many protein interactions in real-time allowing the determination of the KDs and rate constants. The developed novel NAPPA-SPRi technique showed excellent ability to study protein-protein interactions of clinical mutants of p53 with its regulator MDM2. Furthermore, this method was employed to identify mutant p53 proteins insensitive to the drug nutlin-3, currently in clinical practice, which usually disrupts the p53-MDM2 interactions. Thus, significant differences in the interactions were observed for p53 mutants on the DNA binding domain (Arg-273-Cys, Arg-273-His, Arg-248-Glu, Arg-280-Lys), on the structural domain (His-179-Tyr, Cys-176-Phe), on hydrophobic moieties in the DNA binding domain (Arg-280-Thr, Pro-151-Ser, Cys-176-Phe) and hot spot mutants (Gly-245-Cys, Arg-273-Leu, Arg-248-Glu, Arg-248-Gly), which signifies the importance of point mutations on the MDM2 interaction and nutlin3 effect, even in molecular locations related to other protein activities.
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Chen X, Zhou Y, Wan Y, Chen T, Zhu H, Cheng X. The expression of NLK is functionally associated with colorectal cancers (CRC). J Cancer 2021; 12:7088-7100. [PMID: 34729110 PMCID: PMC8558666 DOI: 10.7150/jca.62526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 10/01/2021] [Indexed: 01/15/2023] Open
Abstract
The regulatory mechanism of NLK in the carcinomagenesis and progression of colorectal cancer (CRC) remains unclear. Here, we identified a single nucleotide polymorphism (SNP) site of NLK (rs2125846) as a new susceptibility locus for CRC risk located within an intron of the human NLK gene in a Chinese population. NLK downregulation led to a decrease in the ability of proliferation and migration of RKO cells in vitro. The proportion of RKO apoptotic cells increased by interfering with the endogenous expression of NLK. We speculate that LncRNA XIST may upregulate NLK expression by downregulating miR-92b-3p, thereby promote the development of CRC. These results provide important information for the identification of novel potential targets for the prevention or treatment of CRC.
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Affiliation(s)
- Xinyan Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Yifan Zhou
- Department of Pathology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230036, China
| | - Yufeng Wan
- Department of Otolaryngology, The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui 238001, P.R. China
| | - Tingting Chen
- Department of Pathology, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Huaqing Zhu
- Laboratory of Molecular Biology and Department of Biochemistry, Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Xiaowen Cheng
- Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China.,Laboratory of Molecular Biology and Department of Biochemistry, Anhui Medical University, Hefei, Anhui 230022, P.R. China
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Ren Z, Raut NA, Lawal TO, Patel SR, Lee SM, Mahady GB. Peonidin-3-O-glucoside and cyanidin increase osteoblast differentiation and reduce RANKL-induced bone resorption in transgenic medaka. Phytother Res 2021; 35:6255-6269. [PMID: 34704297 DOI: 10.1002/ptr.7271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/23/2020] [Accepted: 01/23/2021] [Indexed: 11/07/2022]
Abstract
Experimental and clinical studies suggest a positive impact of anthocyanins on bone health; however, the mechanisms of anthocyanins altering the differentiation and function of osteoblasts and osteoclasts are not fully understood. This work demonstrates that dietary anthocyanins and resveratrol increased proliferation of cultured human hFOB 1.19 osteoblasts. In addition, treatment of serum starvation of hFOB osteoblasts with anthocyanins and resveratrol at 1.0 μg/ml reduced apoptosis, the Bax/Bcl-2 ratio, p53, and HDAC1 expression, but increased SIRT1/3 and PGC1α mRNA expression, suggesting mitochondrial and epigenetic regulation. In Sp7/osterix:mCherry transgenic medaka, peonidin-3-O-glucoside and resveratrol increased osteoblast differentiation and increased the expression of Sp7/osterix. Cyanidin, peonidin-3-O-glucoside, and resveratrol also reduced RANKL-induced ectopic osteoclast formation and bone resorption in col10α1:nlGFP/rankl:HSE:CFP medaka in doses of 1-4 μg/ml. The results indicate that both cyanidin and peonidin-3-O-glucoside have anabolic effects on bone, increasing osteoblast proliferation and differentiation, mitochondrial biogenesis, and by altering the osteoblast epigenome. Cyanidin and peonidin-3-O-glucoside also reduced RANKL-induced bone resorption in a transgenic medaka model of bone resorption. Thus, peonidin-3-O-glucoside and cyanidin appear to both increase bone formation and reduce bone loss, suggesting that they be further investigated as potential treatments for osteoporosis and osteomalacia.
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Affiliation(s)
- Zhitao Ren
- Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.,State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Nishikant A Raut
- Raman Fellow, Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.,Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Temitope O Lawal
- Schlumberger Fellow, Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.,Department of Pharmaceutical Microbiology, University of Ibadan, Ibadan, Nigeria
| | - Shital R Patel
- Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Simon M Lee
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Gail B Mahady
- Department of Pharmacy Practice, College of Pharmacy, WHO Collaborating Centre for Traditional Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
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34
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Antiproliferative and palliative activity of flavonoids in colorectal cancer. Biomed Pharmacother 2021; 143:112241. [PMID: 34649363 DOI: 10.1016/j.biopha.2021.112241] [Citation(s) in RCA: 128] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/10/2021] [Accepted: 09/21/2021] [Indexed: 12/21/2022] Open
Abstract
Flavonoids are plant bioactive compounds of great interest in nutrition and pharmacology, due to their remarkable properties as antioxidant, anti-inflammatory, antibacterial, antifungal and antitumor drugs. More than 5000 different flavonoids exist in nature, with a huge structural diversity and a plethora of interesting pharmacological properties. In this work, five flavonoids were tested for their potential use as antitumor drugs against three CRC cell lines (HCT116, HT-29 and T84). These cell lines represent three different stages of this tumor, one of which is metastatic. Xanthohumol showed the best antitumor activity on the three cancer cell lines, even better than that of the clinical drug 5-fluorouracil (5-FU), although no synergistic effect was observed in the combination therapy with this drug. On the other hand, apigenin and luteolin displayed slightly lower antitumor activities on these cancer cell lines but showed a synergistic effect in combination with 5-FU in the case of HTC116, which is of potential clinical interest. Furthermore, a literature review highlighted that these flavonoids show very interesting palliative effects on clinical symptoms such as diarrhea, mucositis, neuropathic pain and others often associated with the chemotherapy treatment of CRC. Flavonoids could provide a double effect for the combination treatment, potentiating the antitumor effect of 5-FU, and simultaneously, preventing important side effects of 5-FU chemotherapy.
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35
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Leischner C, Burkard M, Michel A, Berchtold S, Niessner H, Marongiu L, Busch C, Frank J, Lauer UM, Venturelli S. Comparative Analysis of the Antitumor Activity of Cis- and Trans-Resveratrol in Human Cancer Cells with Different p53 Status. Molecules 2021; 26:5586. [PMID: 34577057 PMCID: PMC8466563 DOI: 10.3390/molecules26185586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 11/17/2022] Open
Abstract
Resveratrol, a natural plant phytoalexin, is produced in response to fungal infection or- UV irradiation. It exists as an isomeric pair with cis- and trans-conformation. Whereas multiple physiological effects of the trans-form, including a pronounced anti-tumoral activity, are nowadays elucidated, much less knowledge exists concerning the cis-isomer. In our work, we analyzed the antiproliferative and cytotoxic properties of cis-resveratrol in four different human tumor entities in direct comparison to trans-resveratrol. We used human cell lines as tumor models for hepatocellular carcinoma (HCC; HepG2, Hep3B), colon carcinoma (HCT-116, HCT-116/p53(-/-)), pancreatic carcinoma (Capan-2, MiaPaCa-2), and renal cell carcinoma (A498, SN12C). Increased cytotoxicity in all investigated tumor cells was observed for the trans-isomer. To verify possible effects of the tumor suppressor p53 on resveratrol-induced cell death, we used wild type and p53-deleted or -mutated cell lines for every tested tumor entity. Applying viability and cytotoxicity assays, we demonstrated a differential, dose-dependent sensitivity towards cis- or trans-resveratrol among the respective tumor types.
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Affiliation(s)
- Christian Leischner
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany; (C.L.); (M.B.); (A.M.); (H.N.); (L.M.)
| | - Markus Burkard
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany; (C.L.); (M.B.); (A.M.); (H.N.); (L.M.)
| | - Anja Michel
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany; (C.L.); (M.B.); (A.M.); (H.N.); (L.M.)
- Department of Food Biofunctionality, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany;
| | - Susanne Berchtold
- Department of Internal Medicine VIII, University Hospital Tuebingen, 72076 Tuebingen, Germany; (S.B.); (U.M.L.)
| | - Heike Niessner
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany; (C.L.); (M.B.); (A.M.); (H.N.); (L.M.)
- Division of Dermatooncology, Department of Dermatology, University of Tuebingen, 72076 Tuebingen, Germany
| | - Luigi Marongiu
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany; (C.L.); (M.B.); (A.M.); (H.N.); (L.M.)
| | | | - Jan Frank
- Department of Food Biofunctionality, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany;
| | - Ulrich M. Lauer
- Department of Internal Medicine VIII, University Hospital Tuebingen, 72076 Tuebingen, Germany; (S.B.); (U.M.L.)
- German Cancer Consortium (DKTK), DKFZ Partner Site, 72076 Tuebingen, Germany
| | - Sascha Venturelli
- Department of Nutritional Biochemistry, Institute of Nutritional Sciences, University of Hohenheim, 70599 Stuttgart, Germany; (C.L.); (M.B.); (A.M.); (H.N.); (L.M.)
- Department of Vegetative and Clinical Physiology, Institute of Physiology, University of Tuebingen, 72074 Tuebingen, Germany
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Natural Merosesquiterpenes Activate the DNA Damage Response via DNA Strand Break Formation and Trigger Apoptotic Cell Death in p53-Wild-type and Mutant Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13133282. [PMID: 34209047 PMCID: PMC8268692 DOI: 10.3390/cancers13133282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/19/2021] [Accepted: 06/27/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Bowel cancer is a serious disease, which affects many people worldwide. Unfortunately, the disease is often diagnosed in an advanced stage, which impairs the chance of survival. Furthermore, resistance to therapy occurs frequently. Thus, novel therapeutic approaches are required to improve cancer therapy. Here, we studied whether merosesquiterpenes might be useful for cancer treatment. These compounds occur in marine sponges and were isolated by our group. We were able to identify three compounds with potent cytotoxic activity in different cell lines established from human large bowel cancer. Our experiments provided evidence that the compounds cause DNA damage and trigger cell death, so-called mitochondrial apoptosis, which was attested in cancer cells with expression of wild-type and mutated p53 tumor suppressor. Finally, we show that merosesquiterpenes also kill intestinal tumor organoids, an ex vivo model of large bowel cancer. Abstract Colorectal cancer (CRC) is a frequently occurring malignant disease with still low survival rates, highlighting the need for novel therapeutics. Merosesquiterpenes are secondary metabolites from marine sponges, which might be useful as antitumor agents. To address this issue, we made use of a compound library comprising 11 isolated merosesquiterpenes. The most cytotoxic compounds were smenospongine > ilimaquinone ≈ dactylospontriol, as shown in different human CRC cell lines. Alkaline Comet assays and γH2AX immunofluorescence microscopy demonstrated DNA strand break formation in CRC cells. Western blot analysis revealed an activation of the DNA damage response with CHK1 phosphorylation, stabilization of p53 and p21, which occurred both in CRC cells with p53 knockout and in p53-mutated CRC cells. This resulted in cell cycle arrest followed by a strong increase in the subG1 population, indicative of apoptosis, and typical morphological alterations. In consistency, cell death measurements showed apoptosis following exposure to merosesquiterpenes. Gene expression studies and analysis of caspase cleavage revealed mitochondrial apoptosis via BAX, BIM, and caspase-9 as the main cell death pathway. Interestingly, the compounds were equally effective in p53-wild-type and p53-mutant CRC cells. Finally, the cytotoxic activity of the merosesquiterpenes was corroborated in intestinal tumor organoids, emphasizing their potential for CRC chemotherapy.
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Özerkan D, Erol A, Altuner EM, Canlı K, Kuruca DS. Some Bryophytes Trigger Cytotoxicity of Stem Cell-like Population in 5-Fluorouracil Resistant Colon Cancer Cells. Nutr Cancer 2021; 74:1012-1022. [PMID: 34151658 DOI: 10.1080/01635581.2021.1933098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Colorectal cancer is the third most common cancer worldwide. Cancer stem cells are known to play an important role in relapse, and metastases of the disease after chemotherapy. Investigation of new drugs, and their combinations targeting these cells and thus eliminating cancer is one of the most urgent needs of today's chemotherapy. The aim of the present study was to evaluate the effects of Bryophytes like Abietinella abietina (AA), Homolothecium sericeum (HS), Tortella tortuosa (TT), Syntrichia ruralis (SR), and Bryoerythrophyllum rubrum (BR) species extracted with ethyl alcohol on 5-fluorouracil(5-FU) resistant colorectal cancer cell lines (HCT116 and HT29). After extraction, stock solutions of bryophytes were prepared, and IC50 values were detected in drug-resistant cells obtained with 5-FU application. CD24+, CD44+/CD133+ surface markers and P-glycoprotein (P-gp) mediated efflux were isolated from both 5-FU treated cells and analyzed using the flow cytometry. In all bryophyte-treated groups, the binding Rho123low (low Rho fluorescence) and Rhohigh (high Rho fluorescence) were sorted from 5-FU resistant HCT116, and HT-29 cells. All types of bryophytes were found cytotoxic. Bryophyte extract reduced the percentage of Rholow cells in cultures incubated with 5-FU. In summary, the implementation of these bryophytes might be regarded as an effective approach for treatment of colorectal cancer due to their cytotoxic effect that decreases the recurrence of the disease.Supplemental data for this article is available online at https://doi.org/10.1080/01635581.2021.1933098.
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Affiliation(s)
- Dilşad Özerkan
- Faculty of Health Sciences, Molecular Cancer Research Center, İstinye University, İstanbul, Turkey
| | - Ayşe Erol
- Department of Medical Biology, Faculty of Medicine, İstanbul University, İstanbul, Turkey
| | - Ergin Murat Altuner
- Department of Biology, Faculty of Science and Literature, Kastamonu University, Kastamonu, Turkey
| | - Kerem Canlı
- Department of Biology, Faculty of Sciences, Dokuz Eylül University, İzmir, Turkey
| | - Dürdane Serap Kuruca
- Department of Physiology, Faculty of Medicine, Istanbul University, İstanbul, Turkey
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Guardamagna I, Lonati L, Savio M, Stivala LA, Ottolenghi A, Baiocco G. An Integrated Analysis of the Response of Colorectal Adenocarcinoma Caco-2 Cells to X-Ray Exposure. Front Oncol 2021; 11:688919. [PMID: 34150657 PMCID: PMC8209426 DOI: 10.3389/fonc.2021.688919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/11/2021] [Indexed: 11/17/2022] Open
Abstract
Colorectal cancer is among the three top cancer types for incidence and the second in terms of mortality, usually managed with surgery, chemotherapy and radiotherapy. In particular, radiotherapeutic concepts are crucial for the management of advanced rectal cancer, but patients’ survival remains poor, despite advances in treatment modalities. The use of well-characterized in vitro cell culture systems offers an important preclinical strategy to study mechanisms at the basis of cell response to therapeutic agents, including ionizing radiation, possibly leading to a better understanding of the in vivo response to the treatment. In this context, we present an integrated analysis of results obtained in an extensive measurement campaign of radiation effects on Caco-2 cells, derived from human colorectal adenocarcinoma. Cells were exposed to X-rays with doses up to 10 Gy from a radiotherapy accelerator. We measured a variety of endpoints at different post-irradiation times: clonogenic survival after ~ 2 weeks; cell cycle distribution, cell death, frequency of micronucleated cells and atypical mitoses, activation of matrix metalloproteases (MMPs) and of different proteins involved in DNA damage response and cell cycle regulation at earlier time points, up to 48 h post-exposure. Combined techniques of flow cytometry, immunofluorescence microscopy, gelatin zymography and western blotting were used. For selected endpoints, we also addressed the impact of the irradiation protocol, comparing results obtained when cells are plated before irradiation or first-irradiated and then re-plated. Caco-2 resistance to radiation, previously assessed up to 72 h post exposure in terms of cell viability, does not translate into a high clonogenic survival. Survival is not affected by the irradiation protocol, while endpoints measured on a shorter time frame are. Radiation mainly induces a G2-phase arrest, confirmed by associated molecular markers. The activation of death pathways is dose- and time-dependent, and correlates with a dose-dependent inhibition of MMPs. Genomic aberrations are also found to be dose-dependent. The phosphorylated forms of several proteins involved in cell cycle regulation increase following exposure; the key regulator FoxM1 appears to be downregulated, also leading to inhibition of MMP-2. A unified molecular model of the chain of events initiated by radiation is proposed to interpret all experimental results.
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Affiliation(s)
- Isabella Guardamagna
- Laboratory of Radiation Biophysics and Radiobiology, Department of Physics, University of Pavia, Pavia, Italy
| | - Leonardo Lonati
- Laboratory of Radiation Biophysics and Radiobiology, Department of Physics, University of Pavia, Pavia, Italy
| | - Monica Savio
- Immunology and General Pathology Unit, Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Lucia A Stivala
- Immunology and General Pathology Unit, Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Andrea Ottolenghi
- Laboratory of Radiation Biophysics and Radiobiology, Department of Physics, University of Pavia, Pavia, Italy
| | - Giorgio Baiocco
- Laboratory of Radiation Biophysics and Radiobiology, Department of Physics, University of Pavia, Pavia, Italy
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Spyridopoulou K, Tryfonopoulou E, Aindelis G, Ypsilantis P, Sarafidis C, Kalogirou O, Chlichlia K. Biogenic selenium nanoparticles produced by Lactobacillus casei ATCC 393 inhibit colon cancer cell growth in vitro and in vivo. NANOSCALE ADVANCES 2021; 3:2516-2528. [PMID: 36134160 PMCID: PMC9417964 DOI: 10.1039/d0na00984a] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/08/2021] [Indexed: 05/10/2023]
Abstract
Selenium compounds exhibit excellent anticancer properties but have a narrow therapeutic window. Selenium nanoparticles, however, are less toxic compared to other selenium forms, and their biogenic production leads to improved bioavailability. Herein, we used the probiotic strain Lactobacillus casei ATCC 393, previously shown to inhibit colon cancer cell growth, to synthesize biogenic selenium nanoparticles. We examined the anticancer activity of orally administered L. casei, L. casei-derived selenium nanoparticles and selenium nanoparticle-enriched L. casei, and investigated their antitumor potential in the CT26 syngeneic colorectal cancer model in BALB/c mice. Our results indicate that L. casei-derived selenium nanoparticles and selenium nanoparticle-enriched L. casei exert cancer-specific antiproliferative activity in vitro. Moreover, the nanoparticles were found to induce apoptosis and elevate reactive oxygen species levels in cancer cells. It is noteworthy that, when administered orally, selenium nanoparticle-enriched L. casei attenuated the growth of colon carcinoma in mice more effectively than the isolated nanoparticles or L. casei, suggesting a potential additive effect of the nanoparticles and the probiotic. To the best of our knowledge this is the first comparative study examining the anticancer effects of selenium nanoparticles synthesized by a microorganism, the selenium nanoparticle-enriched microorganism and the sole microorganism.
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Affiliation(s)
- Katerina Spyridopoulou
- Department of Molecular Biology and Genetics, Democritus University of Thrace University Campus Dragana 68100 Alexandroupolis Greece
| | - Eleni Tryfonopoulou
- Department of Molecular Biology and Genetics, Democritus University of Thrace University Campus Dragana 68100 Alexandroupolis Greece
| | - Georgios Aindelis
- Department of Molecular Biology and Genetics, Democritus University of Thrace University Campus Dragana 68100 Alexandroupolis Greece
| | - Petros Ypsilantis
- Laboratory of Experimental Surgery and Surgical Research, Department of Medicine, Democritus University of Thrace 68100 Alexandroupolis Greece
| | - Charalampos Sarafidis
- Department of Physics, Aristotle University of Thessaloniki 54124 Thessaloniki Greece
| | - Orestis Kalogirou
- Department of Physics, Aristotle University of Thessaloniki 54124 Thessaloniki Greece
| | - Katerina Chlichlia
- Department of Molecular Biology and Genetics, Democritus University of Thrace University Campus Dragana 68100 Alexandroupolis Greece
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40
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Choi YJ, Lee J, Ha SH, Lee HK, Lim HM, Yu SH, Lee CM, Nam MJ, Yang YH, Park K, Choi YS, Jang KY, Park SH. 6,8-Diprenylorobol induces apoptosis in human colon cancer cells via activation of intracellular reactive oxygen species and p53. ENVIRONMENTAL TOXICOLOGY 2021; 36:914-925. [PMID: 33382531 DOI: 10.1002/tox.23093] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
6,8-Diprenylorobol is a natural compound mainly found in Glycyrrhiza uralensis fisch and Maclura tricuspidata, which has been used traditionally as food and medicine in Asia. So far, the antiproliferative effect of 6,8-diprenylorobol has not been studied yet in colon cancer. In this study, we aimed to evaluate the antiproliferative effects of 6,8-diprenylorobol in LoVo and HCT15, two kinds of human colon cancer cells. 6,8-Diprenylorobol inhibited the proliferation of LoVo and HCT15 cells in a dose- and time-dependent manner. A 40 μM of 6,8-diprenylorobol for 72 h reduced both of cell viability under 50%. After treatment of 6,8-diprenylorobol (40 and 60 μM) for 72 h, late apoptotic cell portion in LoVo and HCT15 cells were 24, 70% and 13, 90%, respectively, which was confirmed by checking DNA fragmentation in both cells. Mechanistically, 6,8-diprenylorobol activated p53 and its phosphorylated form (Ser15, Ser20, and Ser46) expression but suppressed Akt and mitogen-activated protein kinases (MAPKs) phosphorylation in LoVo and HCT15 cells. Interestingly, 6,8-diprenylorobol induced the generation of intracellular reactive oxygen species (ROS), which was attenuated with N-acetyl cysteine (NAC) treatment. Compared to the control, 60 μM of 6,8-diprenylorobol caused to increase ROS level to 210% in LoVo and HCT15, which was reduced into 161% and 124%, respectively with NAC. Furthermore, cell viability and apoptotic cell portion by 6,8-diprenylorobol was recovered by incubation with NAC. Taken together, these results indicate that 6,8-diprenylorobol has the potential antiproliferative effect against LoVo and HCT15 colon cancer cells through activation of p53 and generation of ROS.
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Affiliation(s)
- Yong Jun Choi
- Department of Bio and Chemical Engineering, Hongik University, Sejong, South Korea
| | - Jongsung Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, South Korea
| | - Sang Hoon Ha
- Division of Biotechnology, Jeonbuk National University, Iksan, South Korea
| | - Han Ki Lee
- Department of Biological Science, Gachon University, Seongnam, South Korea
| | - Heui Min Lim
- Department of Biological Science, Gachon University, Seongnam, South Korea
| | - Seon-Hak Yu
- Department of Bio and Chemical Engineering, Hongik University, Sejong, South Korea
| | - Chang Min Lee
- Department of Bio and Chemical Engineering, Hongik University, Sejong, South Korea
| | - Myeong Jin Nam
- Department of Biological Science, Gachon University, Seongnam, South Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, Konkuk University, Seoul, South Korea
| | - Kyungmoon Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong, South Korea
| | - Youn Soo Choi
- Department of Biomedical Sciences, Seoul National University, Graduate School, Seoul, South Korea
- Department of Medicine, College of Medicine, Seoul National University, Seoul, South Korea
| | - Kyu Yun Jang
- Department of Pathology, Jeonbuk National University Medical School, Jeonju, South Korea
- Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju, South Korea
- Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, South Korea
| | - See-Hyoung Park
- Department of Bio and Chemical Engineering, Hongik University, Sejong, South Korea
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41
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Ho K, Luo H, Zhu W, Tang Y. Critical role of SMG7 in activation of the ATR-CHK1 axis in response to genotoxic stress. Sci Rep 2021; 11:7502. [PMID: 33820915 PMCID: PMC8021557 DOI: 10.1038/s41598-021-86957-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/15/2021] [Indexed: 11/30/2022] Open
Abstract
CHK1 is a crucial DNA damage checkpoint kinase and its activation, which requires ATR and RAD17, leads to inhibition of DNA replication and cell cycle progression. Recently, we reported that SMG7 stabilizes and activates p53 to induce G1 arrest upon DNA damage; here we show that SMG7 plays a critical role in the activation of the ATR-CHK1 axis. Following genotoxic stress, SMG7-null cells exhibit deficient ATR signaling, indicated by the attenuated phosphorylation of CHK1 and RPA32, and importantly, unhindered DNA replication and fork progression. Through its 14-3-3 domain, SMG7 interacts directly with the Ser635-phosphorylated RAD17 and promotes chromatin retention of the 9-1-1 complex by the RAD17-RFC, an essential step to CHK1 activation. Furthermore, through maintenance of CHK1 activity, SMG7 controls G2-M transition and facilitates orderly cell cycle progression during recovery from replication stress. Taken together, our data reveals SMG7 as an indispensable signaling component in the ATR-CHK1 pathway during genotoxic stress response.
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Affiliation(s)
- Kathleen Ho
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, 47 New Scotland Ave, Albany, NY, 12208, USA
| | - Hongwei Luo
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, 47 New Scotland Ave, Albany, NY, 12208, USA
| | - Wei Zhu
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, 47 New Scotland Ave, Albany, NY, 12208, USA
- Key Laboratory of State Ethnic Affairs Commission for Biological Technology, College of Life Science, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Yi Tang
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, 47 New Scotland Ave, Albany, NY, 12208, USA.
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42
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Wu C, Cui Y, Liu X, Zhang F, Lu LY, Yu X. The RNF20/40 complex regulates p53-dependent gene transcription and mRNA splicing. J Mol Cell Biol 2021; 12:113-124. [PMID: 31152661 PMCID: PMC7109600 DOI: 10.1093/jmcb/mjz045] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 04/05/2019] [Accepted: 04/23/2019] [Indexed: 12/20/2022] Open
Abstract
p53 is a key transcription factor to regulate gene transcription. However, the molecular mechanism of chromatin-associated p53 on gene transcription remains elusive. Here, using unbiased protein affinity purification, we found that the RNF20/40 complex associated with p53 on the chromatin. Further analyses indicated that p53 mediated the recruitment of the RNF20/40 complex to p53 target gene loci including p21 and PUMA loci and regulated the transcription of p21 and PUMA via the RNF20/40 complex-dependent histone H2B ubiquitination (ubH2B). Lacking the RNF20/40 complex suppressed not only ubH2B but also the generation of the mature mRNA of p21 and PUMA. Moreover, ubH2B was recognized by the ubiquitin-binding motif of pre-mRNA processing splicing factor 8 (PRPF8), a subunit in the spliceosome, and PRPF8 was required for the maturation of the mRNA of p21 and PUMA. Our study unveils a novel p53-dependent pathway that regulates mRNA splicing for tumor suppression.
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Affiliation(s)
- Chen Wu
- College of Life Sciences, Hebei University, Baoding 071000, China.,Department of Cancer Genetics and Epigenetics, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Yaqi Cui
- College of Life Sciences, Hebei University, Baoding 071000, China.,Department of Cancer Genetics and Epigenetics, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Xiuhua Liu
- College of Life Sciences, Hebei University, Baoding 071000, China
| | - Feng Zhang
- College of Life and Environment Sciences, Shanghai Normal University, Shanghai, China
| | - Lin-Yu Lu
- Key Laboratory of Reproductive Genetics, Ministry of Education and Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Translational Medicine, Zhejiang University, Hangzhou, China
| | - Xiaochun Yu
- Department of Cancer Genetics and Epigenetics, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
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43
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Baliou S, Goulielmaki M, Ioannou P, Cheimonidi C, Trougakos IP, Nagl M, Kyriakopoulos AM, Zoumpourlis V. Bromamine T (BAT) Exerts Stronger Anti-Cancer Properties than Taurine (Tau). Cancers (Basel) 2021; 13:E182. [PMID: 33430276 PMCID: PMC7825693 DOI: 10.3390/cancers13020182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Taurine (Tau) ameliorates cancer pathogenesis. Researchers have focused on the functional properties of bromamine T (BAT), a stable active bromine molecule. Both N-bromotaurine (TauNHBr) and BAT exert potent anti-inflammatory properties, but the landscape remains obscure concerning the anti-cancer effect of BAT. METHODS We used Crystal Violet, colony formation, flow cytometry and Western blot experiments to evaluate the effect of BAT and Tau on the apoptosis and autophagy of cancer cells. Xenograft experiments were used to determine the in vivo cytotoxicity of either agent. RESULTS We demonstrated that both BAT and Tau inhibited the growth of human colon, breast, cervical and skin cancer cell lines. Among them, BAT exerted the greatest cytotoxic effect on both RKO and MDA-MB-468 cells. In particular, BAT increased the phosphorylation of c-Jun N-terminal kinases (JNK½), p38 mitogen-activated protein kinase (MAPK), and extracellular-signal-regulated kinases (ERK½), thereby inducing mitochondrial apoptosis and autophagy in RKO cells. In contrast, Tau exerted its cytotoxic effect by upregulating JNK½ forms, thus triggering mitochondrial apoptosis in RKO cells. Accordingly, colon cancer growth was impaired in vivo. CONCLUSIONS BAT and Tau exerted their anti-tumor properties through the induction of (i) mitochondrial apoptosis, (ii) the MAPK family, and iii) autophagy, providing novel anti-cancer therapeutic modalities.
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Affiliation(s)
- Stella Baliou
- Biomedical Application Unit, Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vas. Constantinou Ave., 11635 Athens, Greece; (S.B.); (M.G.)
| | - Maria Goulielmaki
- Biomedical Application Unit, Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vas. Constantinou Ave., 11635 Athens, Greece; (S.B.); (M.G.)
| | - Petros Ioannou
- Department of Internal Medicine & Infectious Diseases, University Hospital of Heraklion, 71110 Heraklion, Crete, Greece;
| | - Christina Cheimonidi
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece; (C.C.); (I.P.T.)
| | - Ioannis P. Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece; (C.C.); (I.P.T.)
| | - Markus Nagl
- Department of Hygiene, Microbiology and Public Health, Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, 6020 Innsbruck, Austria;
| | - Anthony M. Kyriakopoulos
- Department of Research and Development, Nasco AD Biotechnology Laboratory, 11 Sachtouri Str, 18536 Piraeus, Greece;
| | - Vassilis Zoumpourlis
- Biomedical Application Unit, Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vas. Constantinou Ave., 11635 Athens, Greece; (S.B.); (M.G.)
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44
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Molecular Mechanisms of Colon Cancer Progression and Metastasis: Recent Insights and Advancements. Int J Mol Sci 2020; 22:ijms22010130. [PMID: 33374459 PMCID: PMC7794761 DOI: 10.3390/ijms22010130] [Citation(s) in RCA: 155] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC), the third most common type of cancer, is the second leading cause of cancer-related mortality rates worldwide. Although modern research was able to shed light on the pathogenesis of CRC and provide enhanced screening strategies, the prevalence of CRC is still on the rise. Studies showed several cellular signaling pathways dysregulated in CRC, leading to the onset of malignant phenotypes. Therefore, analyzing signaling pathways involved in CRC metastasis is necessary to elucidate the underlying mechanism of CRC progression and pharmacotherapy. This review focused on target genes as well as various cellular signaling pathways including Wnt/β-catenin, p53, TGF-β/SMAD, NF-κB, Notch, VEGF, and JAKs/STAT3, which are associated with CRC progression and metastasis. Additionally, alternations in methylation patterns in relation with signaling pathways involved in regulating various cellular mechanisms such as cell cycle, transcription, apoptosis, and angiogenesis as well as invasion and metastasis were also reviewed. To date, understanding the genomic and epigenomic instability has identified candidate biomarkers that are validated for routine clinical use in CRC management. Nevertheless, better understanding of the onset and progression of CRC can aid in the development of early detection molecular markers and risk stratification methods to improve the clinical care of CRC patients.
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45
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STAT3 and p53: Dual Target for Cancer Therapy. Biomedicines 2020; 8:biomedicines8120637. [PMID: 33371351 PMCID: PMC7767392 DOI: 10.3390/biomedicines8120637] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/15/2020] [Accepted: 12/19/2020] [Indexed: 02/06/2023] Open
Abstract
The tumor suppressor p53 is considered the "guardian of the genome" that can protect cells against cancer by inducing cell cycle arrest followed by cell death. However, STAT3 is constitutively activated in several human cancers and plays crucial roles in promoting cancer cell proliferation and survival. Hence, STAT3 and p53 have opposing roles in cellular pathway regulation, as activation of STAT3 upregulates the survival pathway, whereas p53 triggers the apoptotic pathway. Constitutive activation of STAT3 and gain or loss of p53 function due to mutations are the most frequent events in numerous cancer types. Several studies have reported the association of STAT3 and/or p53 mutations with drug resistance in cancer treatment. This review discusses the relationship between STAT3 and p53 status in cancer, the molecular mechanism underlying the negative regulation of p53 by STAT3, and vice versa. Moreover, it underlines prospective therapies targeting both STAT3 and p53 to enhance chemotherapeutic outcomes.
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46
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Khan I, Mahfooz S, Faisal M, Alatar AA, Ansari IA. Andrographolide Induces Apoptosis and Cell Cycle Arrest through Inhibition of Aberrant Hedgehog Signaling Pathway in Colon Cancer Cells. Nutr Cancer 2020; 73:2428-2446. [PMID: 33030050 DOI: 10.1080/01635581.2020.1828942] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Hedgehog signaling pathway (Hh) is abnormally stimulated in colon cancer. Evidence suggests the therapeutic effectiveness of andrographolide against several cancers. This study attempts to delineate the effect of andrographolide on Hh signaling pathway in colon cancer HCT-116 cells. Methods: Effects of andrographolide were studied on HCT-116 cells by evaluating cytotoxicity by MTT assay, morphology assessment, trypan blue exclusion, and colony formation assay; migratory potential by scratch assay; apoptosis by DAPI, Hoechst staining, FITC-Annexin V assay, and caspases activation; mitochondrial membrane potential (ΔΨm) by Mito Tracker and Rhodamine 123. Intracellular ROS by DCFH-DA staining. Cell cycle regulation by flow cytometry. Expression of BAX, BAD, BCL2, Cyclin B1, CDK1, Smo, and Gli1 by qRT-PCR. Interaction between andrographolide and Smo protein by in-silico molecular docking. Results: Andrographolide induced antiproliferative effect on HCT-116 cells in a dose-dependent and time-dependent manner. It also induced apoptosis and anti-migratory effect in HCT-116 cells. In combination with 5FU, andrographolide exhibited synergistic effect. It Induced G2/M phase arrest through downregulating CDK1 and Cyclin B1. Andrographolide also inhibited Hh signaling by downregulating Smo and Gli1 in HCT-116 cells. It showed high affinity toward Smo protein in-silico. Conclusion: Andrographolide repressed the colon cancer cell growth via inhibiting Hh signaling pathway.
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Affiliation(s)
- Imran Khan
- Department of Molecular Biology, Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Istanbul, Turkey.,Department of Biosciences, Integral University, Lucknow, India
| | - Sadaf Mahfooz
- Department of Molecular Biology, Beykoz Institute of Life Sciences and Biotechnology, Bezmialem Vakif University, Istanbul, Turkey.,Department of Biosciences, Integral University, Lucknow, India
| | - Mohammad Faisal
- Departmentof Botany and Microbiology, College of Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abdulrahman A Alatar
- Departmentof Botany and Microbiology, College of Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Irfan A Ansari
- Department of Biosciences, Integral University, Lucknow, India
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47
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Heme oxygenase 1 protects human colonocytes against ROS formation, oxidative DNA damage and cytotoxicity induced by heme iron, but not inorganic iron. Cell Death Dis 2020; 11:787. [PMID: 32968051 PMCID: PMC7511955 DOI: 10.1038/s41419-020-02950-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/20/2020] [Accepted: 08/27/2020] [Indexed: 12/14/2022]
Abstract
The consumption of red meat is probably carcinogenic to humans and is associated with an increased risk to develop colorectal cancer (CRC). Red meat contains high amounts of heme iron, which is thought to play a causal role in tumor formation. In this study, we investigated the genotoxic and cytotoxic effects of heme iron (i.e., hemin) versus inorganic iron in human colonic epithelial cells (HCEC), human CRC cell lines and murine intestinal organoids. Hemin catalyzed the formation of reactive oxygen species (ROS) and induced oxidative DNA damage as well as DNA strand breaks in both HCEC and CRC cells. In contrast, inorganic iron hardly affected ROS levels and only slightly increased DNA damage. Hemin, but not inorganic iron, caused cell death and reduced cell viability. This occurred preferentially in non-malignant HCEC, which was corroborated in intestinal organoids. Both hemin and inorganic iron were taken up into HCEC and CRC cells, however with differential kinetics and efficiency. Hemin caused stabilization and nuclear translocation of Nrf2, which induced heme oxygenase-1 (HO-1) and ferritin heavy chain (FtH). This was not observed after inorganic iron treatment. Chemical inhibition or genetic knockdown of HO-1 potentiated hemin-triggered ROS generation and oxidative DNA damage preferentially in HCEC. Furthermore, HO-1 abrogation strongly augmented the cytotoxic effects of hemin in HCEC, revealing its pivotal function in colonocytes and highlighting the toxicity of free intracellular heme iron. Taken together, this study demonstrated that hemin, but not inorganic iron, induces ROS and DNA damage, resulting in a preferential cytotoxicity in non-malignant intestinal epithelial cells. Importantly, HO-1 conferred protection against the detrimental effects of hemin.
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48
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Alam E, Maaliki L, Nasr Z. Ribosomal protein S3 selectively affects colon cancer growth by modulating the levels of p53 and lactate dehydrogenase. Mol Biol Rep 2020; 47:6083-6090. [PMID: 32748020 DOI: 10.1007/s11033-020-05683-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 07/26/2020] [Indexed: 01/10/2023]
Abstract
Ribosomal protein S3 (RPS3) is a component of the 40S ribosomal subunit. It is known to function in ribosome biogenesis and as an endonuclease. RPS3 has been shown to be over expressed in colon adenocarcinoma but its role in colon cancer is still unknown. In this study, we aim at determining the expression levels of RPS3 in a colon cancer cell line Caco-2 compared to a normal colon mucosa cell line NCM-460 and study the effects of targeting this protein by siRNA on cellular behavior. RPS3 was found to be expressed in both cell lines. However, siRNA treatment showed a more protruding effect on Caco-2 cells compared to NCM-460 cells. RPS3 knockdown led to a significant decrease in the proliferation, survival, migration and invasion and an increase in the apoptosis of Caco-2 cells. Western blot analysis demonstrated that these effects correlated with an increase in the level of the tumor suppressor p53 and a decrease in the level and activity of lactate dehydrogenase (LDH), an enzyme involved in the metabolism of cancer cells. No significant effect was shown in normal colon NCM-460 cells. Targeting p53 by siRNA did not affect RPS3 levels indicating that p53 may be a downstream target of RPS3. However, the concurrent knockdown of RPS3 and p53 showed no change in LDH level in Caco-2 cells suggesting an interesting interplay among the three proteins. These findings might present RPS3 as a selective molecular marker in colon cancer and an attractive target for colon cancer therapy.
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Affiliation(s)
- Elie Alam
- Department of Biology, Faculty of Arts and Sciences, University of Balamand, P.O.B. 100, Tripoli, Lebanon
| | - Lama Maaliki
- Department of Biology, Faculty of Arts and Sciences, University of Balamand, P.O.B. 100, Tripoli, Lebanon
| | - Zeina Nasr
- Department of Biology, Faculty of Arts and Sciences, University of Balamand, P.O.B. 100, Tripoli, Lebanon.
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Kohata T, Ito S, Masuda T, Furuta T, Nakada M, Ohtsuki S. Laminin Subunit Alpha-4 and Osteopontin Are Glioblastoma-Selective Secreted Proteins That Are Increased in the Cerebrospinal Fluid of Glioblastoma Patients. J Proteome Res 2020; 19:3542-3553. [PMID: 32628487 DOI: 10.1021/acs.jproteome.0c00415] [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] [Indexed: 11/28/2022]
Abstract
Glioblastoma (GBM) is the most common and aggressive brain tumor in adults. The purpose of the present study was to identify GBM cell-selective secreted proteins by analyzing conditioned media (CM) from GBM, breast, and colon cancer cell lines using sequential window acquisition of all theoretical spectra-mass spectrometry (SWATH-MS) and targeted proteomics. We identified 2371 proteins in the CM from GBM and the other cancer cell lines. Among the proteins identified, 15 showed significantly higher expression in the CM from GBM cell lines than in those from other cancer cell lines. These GBM-selective secreted proteins were further quantified in the cerebrospinal fluid (CSF) from patients with GBM. Laminin subunit alpha-4 (LAMA4) and osteopontin (OPN) had increased expression levels in the CSF from GBM patients compared to those from non-brain tumor patients. In addition, the areas under the curves in a receiver operating characteristic analysis of LAMA4 and OPN were greater than 0.9, allowing for discrimination of GBM patients from non-brain tumor patients. The CSF levels of LAMA4 and OPN were also significantly correlated with the GBM tumor volume. These results suggest that LAMA4 and OPN are secreted from GBM cells into the CSF and appear to be candidates as diagnostic markers and therapeutic targets for GBM.
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Affiliation(s)
- Tomohiro Kohata
- Department of Pharmaceutical Microbiology, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Shingo Ito
- Department of Pharmaceutical Microbiology, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.,Department of Pharmaceutical Microbiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.,AMED-CREST, Tokyo, Japan
| | - Takeshi Masuda
- Department of Pharmaceutical Microbiology, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.,Department of Pharmaceutical Microbiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.,AMED-CREST, Tokyo, Japan
| | - Takuya Furuta
- Department of Pathology, Kurume University School of Medicine, Kurume, Japan.,Department of Neurosurgery, Kanazawa University, Kanazawa, Japan
| | | | - Sumio Ohtsuki
- Department of Pharmaceutical Microbiology, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.,Department of Pharmaceutical Microbiology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.,AMED-CREST, Tokyo, Japan
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50
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Abstract
DNA damage response (DDR) and DNA repair pathways determine neoplastic cell transformation and therapeutic responses, as well as the aging process. Altered DDR functioning results in accumulation of unrepaired DNA damage, increased frequency of tumorigenic mutations, and premature aging. Recent evidence suggests that polypeptide hormones play a role in modulating DDR and DNA damage repair, while DNA damage accumulation may also affect hormonal status. We review the available reports elucidating involvement of insulin-like growth factor 1 (IGF1), growth hormone (GH), α-melanocyte stimulating hormone (αMSH), and gonadotropin-releasing hormone (GnRH)/gonadotropins in DDR and DNA repair as well as the current understanding of pathways enabling these actions. We discuss effects of DNA damage pathway mutations, including Fanconi anemia, on endocrine function and consider mechanisms underlying these phenotypes. (Endocrine Reviews 41: 1 - 19, 2020).
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Affiliation(s)
- Vera Chesnokova
- Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Shlomo Melmed
- Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
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