1
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El-Sayed MM, Bianco JR, Li Y, Fabian Z. Tumor-Agnostic Therapy-The Final Step Forward in the Cure for Human Neoplasms? Cells 2024; 13:1071. [PMID: 38920700 PMCID: PMC11201516 DOI: 10.3390/cells13121071] [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: 05/01/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024] Open
Abstract
Cancer accounted for 10 million deaths in 2020, nearly one in every six deaths annually. Despite advancements, the contemporary clinical management of human neoplasms faces a number of challenges. Surgical removal of tumor tissues is often not possible technically, while radiation and chemotherapy pose the risk of damaging healthy cells, tissues, and organs, presenting complex clinical challenges. These require a paradigm shift in developing new therapeutic modalities moving towards a more personalized and targeted approach. The tumor-agnostic philosophy, one of these new modalities, focuses on characteristic molecular signatures of transformed cells independently of their traditional histopathological classification. These include commonly occurring DNA aberrations in cancer cells, shared metabolic features of their homeostasis or immune evasion measures of the tumor tissues. The first dedicated, FDA-approved tumor-agnostic agent's profound progression-free survival of 78% in mismatch repair-deficient colorectal cancer paved the way for the accelerated FDA approvals of novel tumor-agnostic therapeutic compounds. Here, we review the historical background, current status, and future perspectives of this new era of clinical oncology.
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Affiliation(s)
| | | | | | - Zsolt Fabian
- School of Medicine and Dentistry, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, UK; (M.M.E.-S.); (J.R.B.); (Y.L.)
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2
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Kostyuk AI, Rapota DD, Morozova KI, Fedotova AA, Jappy D, Semyanov AV, Belousov VV, Brazhe NA, Bilan DS. Modern optical approaches in redox biology: Genetically encoded sensors and Raman spectroscopy. Free Radic Biol Med 2024; 217:68-115. [PMID: 38508405 DOI: 10.1016/j.freeradbiomed.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/10/2024] [Accepted: 03/13/2024] [Indexed: 03/22/2024]
Abstract
The objective of the current review is to summarize the current state of optical methods in redox biology. It consists of two parts, the first is dedicated to genetically encoded fluorescent indicators and the second to Raman spectroscopy. In the first part, we provide a detailed classification of the currently available redox biosensors based on their target analytes. We thoroughly discuss the main architecture types of these proteins, the underlying engineering strategies for their development, the biochemical properties of existing tools and their advantages and disadvantages from a practical point of view. Particular attention is paid to fluorescence lifetime imaging microscopy as a possible readout technique, since it is less prone to certain artifacts than traditional intensiometric measurements. In the second part, the characteristic Raman peaks of the most important redox intermediates are listed, and examples of how this knowledge can be implemented in biological studies are given. This part covers such fields as estimation of the redox states and concentrations of Fe-S clusters, cytochromes, other heme-containing proteins, oxidative derivatives of thiols, lipids, and nucleotides. Finally, we touch on the issue of multiparameter imaging, in which biosensors are combined with other visualization methods for simultaneous assessment of several cellular parameters.
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Affiliation(s)
- Alexander I Kostyuk
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Pirogov Russian National Research Medical University, 117997, Moscow, Russia
| | - Diana D Rapota
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - Kseniia I Morozova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia
| | - Anna A Fedotova
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia
| | - David Jappy
- Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, Moscow, 117997, Russia
| | - Alexey V Semyanov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia; Sechenov First Moscow State Medical University, Moscow, 119435, Russia; College of Medicine, Jiaxing University, Jiaxing, Zhejiang Province, 314001, China
| | - Vsevolod V Belousov
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Pirogov Russian National Research Medical University, 117997, Moscow, Russia; Federal Center of Brain Research and Neurotechnologies, Federal Medical Biological Agency, Moscow, 117997, Russia; Life Improvement by Future Technologies (LIFT) Center, Skolkovo, Moscow, 143025, Russia
| | - Nadezda A Brazhe
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, 119234, Russia.
| | - Dmitry S Bilan
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia; Pirogov Russian National Research Medical University, 117997, Moscow, Russia.
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3
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Ebrahimnejad P, Mohammadi Z, Babaei A, Ahmadi M, Amirkhanloo S, Asare-Addo K, Nokhodchid A. Novel Strategies Using Sagacious Targeting for Site-Specific Drug Delivery in Breast Cancer Treatment: Clinical Potential and Applications. Crit Rev Ther Drug Carrier Syst 2024; 41:35-84. [PMID: 37824418 DOI: 10.1615/critrevtherdrugcarriersyst.v41.i1.20] [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: 10/14/2023]
Abstract
For more than a decade, researchers have been working to achieve new strategies and smart targeting drug delivery techniques and technologies to treat breast cancer (BC). Nanotechnology presents a hopeful strategy for targeted drug delivery into the building of new therapeutics using the properties of nanomaterials. Nanoparticles are of high regard in the field of diagnosis and the treatment of cancer. The use of these nanoparticles as an encouraging approach in the treatment of various cancers has drawn the interest of researchers in recent years. In order to achieve the maximum therapeutic effectiveness in the treatment of BC, combination therapy has also been adopted, leading to minimal side effects and thus an enhancement in the quality of life for patients. This review article compares, discusses and criticizes the approaches to treat BC using novel design strategies and smart targeting of site-specific drug delivery systems.
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Affiliation(s)
- Pedram Ebrahimnejad
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran; Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Zahra Mohammadi
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Amirhossein Babaei
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Melika Ahmadi
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shervin Amirkhanloo
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Kofi Asare-Addo
- Department of Pharmacy, University of Huddersfield, Huddersfield, UK
| | - Ali Nokhodchid
- Lupin Pharmaceutical Research Center, Coral Springs, Florida, USA; Pharmaceutics Research Lab, Arundel Building, School of Life Sciences, University of Sussex, Brighton, UK
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4
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Wooten J, Mavingire N, Damar K, Loaiza-Perez A, Brantley E. Triumphs and challenges in exploiting poly(ADP-ribose) polymerase inhibition to combat triple-negative breast cancer. J Cell Physiol 2023; 238:1625-1640. [PMID: 37042191 DOI: 10.1002/jcp.31015] [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: 01/12/2023] [Accepted: 03/14/2023] [Indexed: 04/13/2023]
Abstract
Poly(ADP-ribose) polymerase 1 (PARP1) regulates a myriad of DNA repair mechanisms to preserve genomic integrity following DNA damage. PARP inhibitors (PARPi) confer synthetic lethality in malignancies with a deficiency in the homologous recombination (HR) pathway. Patients with triple-negative breast cancer (TNBC) fail to respond to most targeted therapies because their tumors lack expression of the estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2. Certain patients with TNBC harbor mutations in HR mediators such as breast cancer susceptibility gene 1 (BRCA1) and breast cancer susceptibility gene 2 (BRCA2), enabling them to respond to PARPi. PARPi exploits the synthetic lethality of BRCA-mutant cells. However, de novo and acquired PARPi resistance frequently ensue. In this review, we discuss the roles of PARP in mediating DNA repair processes in breast epithelial cells, mechanisms of PARPi resistance in TNBC, and recent advances in the development of agents designed to overcome PARPi resistance in TNBC.
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Affiliation(s)
- Jonathan Wooten
- Department of Basic Sciences, Division of Pharmacology, School of Medicine, Loma Linda University Health, Loma Linda, California, USA
- Center for Health Disparities and Molecular Medicine, School of Medicine, Loma Linda University Health, Loma Linda, California, USA
| | - Nicole Mavingire
- Department of Basic Sciences, Division of Pharmacology, School of Medicine, Loma Linda University Health, Loma Linda, California, USA
| | - Katherine Damar
- Department of Basic Sciences, Division of Pharmacology, School of Medicine, Loma Linda University Health, Loma Linda, California, USA
| | - Andrea Loaiza-Perez
- Facultad de Medicina, Instituto de Oncología Ángel H. Roffo (IOAHR), Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Eileen Brantley
- Department of Basic Sciences, Division of Pharmacology, School of Medicine, Loma Linda University Health, Loma Linda, California, USA
- Center for Health Disparities and Molecular Medicine, School of Medicine, Loma Linda University Health, Loma Linda, California, USA
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5
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Wooten J, Mavingire N, Araújo CA, Aja J, Wauchope S, Delgoda R, Brantley E. Dibenzyl trisulfide induces caspase-independent death and lysosomal membrane permeabilization of triple-negative breast cancer cells. Fitoterapia 2022; 160:105203. [PMID: 35489582 PMCID: PMC9979099 DOI: 10.1016/j.fitote.2022.105203] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/21/2022] [Accepted: 04/23/2022] [Indexed: 01/25/2023]
Abstract
The Petiveria alliacea L. (P. alliacea) plant is traditionally used in folklore medicine throughout tropical regions of the world to treat arthritis, asthma, and cancer. Dibenzyl trisulfide (DTS) is one of the active ingredients within the P. alliacea plant. Triple-negative breast cancer (TNBC) is associated with a poor prognosis, particularly among women of West African ancestry, due in part to limited effective therapy. Though potent anticancer actions of DTS have been reported in a TNBC cell line, the mechanism of DTS-mediated cytotoxicity and cell death remains ill-defined. In the current study, we show that DTS exhibits cytotoxicity in a panel of triple-negative breast cancer (TNBC) cells derived from patients of European and West African ancestry. We found that DTS inhibits proliferation and migration of CRL-2335 cells derived from a patient of West African ancestry. DTS induces the expression of pro-apoptotic genes BAK1, GADD45a, and LTA in CRL2335 cells though it primarily promotes caspase-independent CRL-2335 cell death. DTS also promotes destabilization of the lysosomal membrane resulting in cathepsin B release in CRL-2335 cells. Finally, Kaplan-Meier survival curves reveal that higher expression of BAK1 and LTA in tumors from patients with TNBC is associated with longer relapse-free survival. Collectively, our data suggest that DTS confers promising antitumor efficacy in TNBC, in part, via lysosomal-mediated, caspase-independent cell death to warrant furthering its development as an anticancer agent.
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Affiliation(s)
- Jonathan Wooten
- Department of Basic Sciences, Loma Linda University Health School of Medicine, Loma Linda, CA, United States of America; Center for Health Disparities and Molecular Medicine, Loma Linda University Health School of Medicine, Loma Linda, CA, United States of America.
| | - Nicole Mavingire
- Department of Basic Sciences, Loma Linda University Health School of Medicine, Loma Linda, CA, United States of America.
| | - Cristina A. Araújo
- Department of Basic Sciences, Loma Linda University Health School of Medicine, Loma Linda, CA, US,Center for Health Disparities and Molecular Medicine, Loma Linda University Health School of Medicine, Loma Linda, CA, US
| | - Joyce Aja
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines.
| | - Shaniece Wauchope
- Natural Products Institute, University of the West Indies, Mona, Kingston 7, Jamaica.
| | - Rupika Delgoda
- Natural Products Institute, University of the West Indies, Mona, Kingston 7, Jamaica.
| | - Eileen Brantley
- Department of Basic Sciences, Loma Linda University Health School of Medicine, Loma Linda, CA, United States of America; Center for Health Disparities and Molecular Medicine, Loma Linda University Health School of Medicine, Loma Linda, CA, United States of America.
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6
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Emincik A, Gungor ZB, Guzel E. Effects of salubrinal on ER stress in an experimental model of polycystic ovary syndrome. Ultrastruct Pathol 2021; 44:422-435. [PMID: 33393432 DOI: 10.1080/01913123.2020.1850963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This study aimed to investigate the role of endoplasmic reticulum (ER) stress in polycystic ovary syndrome (PCOS) and the effect of salubrinal (SAL) on this role. Animals were divided into four groups as control, PCOS, PCOS+SAL and SAL. Weights and serum testosterone levels were increased in the PCOS group while serum LH and ATF4 expressions were decreased. Morphometrically, number of follicles with a diameter between 150 and 300 µm were declined and number of follicles larger than 300 µm as well as the percentage of cystic follicles (CFs) were increased. Immunoreactivities of GRP78 and p-eIF2α were decreased, whereas oxidative stress (OS) dependent PAR expression was increased. Ultrastructurally, the PCOS group had no ER enlargement which was observed in the control group, while there were mitochondrial damage in granulosa cells (GCs). Elevated OS levels did not induce but rather decreased ER stress in GCs, and SAL injection in the PCOS model was ineffective on searched parameters. Since ER stress plays roles in certain physiological processes, we suggest that inhibitors of ER stress may not be always useful for reproductive tissues.
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Affiliation(s)
- Asli Emincik
- Department of Histology & Embryology, Faculty of Medicine, Beykent University , Istanbul, Turkey.,Department of Histology & Embryology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa , Istanbul, Turkey
| | - Zeynep Banu Gungor
- Department of Biochemistry, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa , Istanbul, Turkey
| | - Elif Guzel
- Department of Histology & Embryology, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa , Istanbul, Turkey
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7
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Carvalho MR, Mendonça MLM, Oliveira JML, Romanenghi RB, Morais CS, Ota GE, Lima ARR, Oliveira RJ, Filiú WFO, Okoshi K, Okoshi MP, Oliveira-Junior SA, Martinez PF. Influence of high-intensity interval training and intermittent fasting on myocardium apoptosis pathway and cardiac morphology of healthy rats. Life Sci 2021; 264:118697. [PMID: 33130084 DOI: 10.1016/j.lfs.2020.118697] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/22/2020] [Accepted: 10/28/2020] [Indexed: 10/23/2022]
Abstract
AIM To evaluate the influence of intermittent fasting and high-intensity interval training (HIIT) on myocardial apoptosis signaling and cardiac morphological characteristics in healthy rats. METHODS Male Wistar rats (n = 60) were divided into four groups: sedentary control (SED-C), intermittent fasting (SED-IF), high-intensity interval training (HIIT-C), and high-intensity interval training plus intermittent fasting (HIIT-IF). SED-C and HIIT-C groups were treated daily with ad libitum chow; SED-IF and HIIT-IF received the same standard chow every other day. HIIT-C and HIIT-IF rats were submitted to an HIIT protocol five times a week for 12 weeks. At the end of the experiment, functional capacity, cardiac morphology, and expression of apoptosis signaling pathways-related proteins were analyzed. KEY FINDINGS HIIT increased cardiomyocyte cross-sectional area, collagen interstitial fraction, and the pro-apoptotic proteins AIF and caspase-3 expression, and reduced pro-apoptotic protein CYTC expression and the cleaved-to-non-cleaved PARP-1 ratio in myocardium. Intermittent fasting reduced cardiomyocyte cross-sectional area, collagen interstitial fraction, and expression of Bax, CYTC and cleaved PARP-1, and increased expression of the anti-apoptotic protein BCL-2. SMAC, ARC, and caspase-8 expression was not changed by HIIT or intermittent fasting. SIGNIFICANCE HIIT promotes cardiomyocyte hypertrophy and interstitial fibrosis, and modulates the apoptosis signaling pathway in healthy rat myocardium. Intermittent fasting reduces pro-apoptotic and increases antiapoptotic signaling, besides attenuating HIIT-induced cardiomyocyte hypertrophy and myocardial interstitial fibrosis.
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Affiliation(s)
- Marianna R Carvalho
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Maria Lua M Mendonça
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Jéssica M L Oliveira
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Rodrigo B Romanenghi
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Camila S Morais
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Gabriel E Ota
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Aline R R Lima
- Internal Medicine Department, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Rodrigo J Oliveira
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Wander F O Filiú
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Katashi Okoshi
- Internal Medicine Department, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Marina P Okoshi
- Internal Medicine Department, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Silvio A Oliveira-Junior
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Paula F Martinez
- Striated Muscle Study Laboratory, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil.
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8
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Aguilar-Rojas A, Castellanos-Castro S, Matondo M, Gianetto QG, Varet H, Sismeiro O, Legendre R, Fernandes J, Hardy D, Coppée JY, Olivo-Marin JC, Guillen N. Insights into amebiasis using a human 3D-intestinal model. Cell Microbiol 2020; 22:e13203. [PMID: 32175652 DOI: 10.1111/cmi.13203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/27/2020] [Accepted: 03/04/2020] [Indexed: 12/15/2022]
Abstract
Entamoeba histolytica is the causative agent of amebiasis, an infectious disease targeting the intestine and the liver in humans. Two types of intestinal infection are caused by this parasite: silent infection, which occurs in the majority of cases, and invasive disease, which affects 10% of infected persons. To understand the intestinal pathogenic process, several in vitro models, such as cell cultures, human tissue explants or human intestine xenografts in mice, have been employed. Nevertheless, our knowledge on the early steps of amebic intestinal infection and the molecules involved during human-parasite interaction is scarce, in part due to limitations in the experimental settings. In the present work, we took advantage of tissue engineering approaches to build a three-dimensional (3D)-intestinal model that is able to replicate the general characteristics of the human colon. This system consists of an epithelial layer that develops tight and adherens junctions, a mucus layer and a lamina propria-like compartment made up of collagen containing macrophages and fibroblast. By means of microscopy imaging, omics assays and the evaluation of immune responses, we show a very dynamic interaction between E. histolytica and the 3D-intestinal model. Our data highlight the importance of several virulence markers occurring in patients or in experimental models, but they also demonstrate the involvement of under described molecules and regulatory factors in the amoebic invasive process.
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Affiliation(s)
- Arturo Aguilar-Rojas
- Institut Pasteur, Bioimage Analysis Unit, Paris, France.,Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Medicina Reproductiva, Ciudad de México, Mexico
| | - Silvia Castellanos-Castro
- Institut Pasteur, Bioimage Analysis Unit, Paris, France.,Universidad Autónoma de la Ciudad de México, Colegio de Ciencias y Humanidades, Ciudad de México, Mexico
| | - Mariette Matondo
- Institut Pasteur, Plateforme Protéomique, Unité de Spectrométrie de Masse pour la Biologie (MSBio), Centrede Ressources et Recherches Technologiques (C2RT), Paris, France
| | - Quentin Giai Gianetto
- Institut Pasteur, Plateforme Protéomique, Unité de Spectrométrie de Masse pour la Biologie (MSBio), Centrede Ressources et Recherches Technologiques (C2RT), Paris, France.,Institut Pasteur, Plate-forme Transcriptome et EpiGenome, Biomics, Centre de Ressources et Recherches Technologiques (C2RT), Paris, France
| | - Hugo Varet
- Institut Pasteur, Plate-forme Transcriptome et EpiGenome, Biomics, Centre de Ressources et Recherches Technologiques (C2RT), Paris, France.,Institut Pasteur, Hub Bioinformatique et Biostatistique, Département de Biologie Computationnelle (USR3756 IP CNRS), Paris, France
| | - Odile Sismeiro
- Institut Pasteur, Plate-forme Transcriptome et EpiGenome, Biomics, Centre de Ressources et Recherches Technologiques (C2RT), Paris, France
| | - Rachel Legendre
- Institut Pasteur, Plate-forme Transcriptome et EpiGenome, Biomics, Centre de Ressources et Recherches Technologiques (C2RT), Paris, France.,Institut Pasteur, Hub Bioinformatique et Biostatistique, Département de Biologie Computationnelle (USR3756 IP CNRS), Paris, France
| | - Julien Fernandes
- Institut Pasteur, UTechSPBI, Centre de Ressources et Recherches Technologiques (C2RT), Paris, France
| | - David Hardy
- Institut Pasteur, Experimental Neuropathology Unit, Paris, France
| | - Jean-Yves Coppée
- Institut Pasteur, Plate-forme Transcriptome et EpiGenome, Biomics, Centre de Ressources et Recherches Technologiques (C2RT), Paris, France
| | | | - Nancy Guillen
- Institut Pasteur, Paris, France.,Centre National de la Recherche Scientifique, Paris, France
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9
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Xiao G, Lundine D, Annor GK, Canar J, Ellison V, Polotskaia A, Donabedian PL, Reiner T, Khramtsova GF, Olopade OI, Mazo A, Bargonetti J. Gain-of-Function Mutant p53 R273H Interacts with Replicating DNA and PARP1 in Breast Cancer. Cancer Res 2020; 80:394-405. [PMID: 31776133 PMCID: PMC7002183 DOI: 10.1158/0008-5472.can-19-1036] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 09/13/2019] [Accepted: 11/22/2019] [Indexed: 12/25/2022]
Abstract
Over 80% of triple-negative breast cancers (TNBC) express mutant p53 (mtp53) and some contain oncogenic gain-of-function (GOF) p53. We previously reported that GOF mtp53 R273H upregulates the chromatin association of mini chromosome maintenance (MCM) proteins MCM2-7 and PARP and named this the mtp53-PARP-MCM axis. In this study, we dissected the function and association between mtp53 and PARP using a number of different cell lines, patient-derived xenografts (PDX), tissue microarrays (TMA), and The Cancer Genome Atlas (TCGA) database. Endogenous mtp53 R273H and exogenously expressed R273H and R248W bound to nascent 5-ethynyl-2´-deoxyuridine-labeled replicating DNA. Increased mtp53 R273H enhanced the association of mtp53 and PARP on replicating DNA. Blocking poly-ADP-ribose gylcohydrolase also enhanced this association. Moreover, mtp53 R273H expression enhanced overall MCM2 levels, promoted cell proliferation, and improved the synergistic cytotoxicity of treatment with the alkylating agent temozolomide in combination with the PARP inhibitor (PARPi) talazoparib. Staining of p53 and PARP1 in breast cancer TMAs and comparison with the TCGA database indicated a higher double-positive signal in basal-like breast cancer than in luminal A or luminal B subtypes. Higher PARP1 protein levels and PAR proteins were detected in mtp53 R273H than in wild-type p53-expressing PDX samples. These results indicate that mtp53 R273H and PARP1 interact with replicating DNA and should be considered as dual biomarkers for identifying breast cancers that may respond to combination PARPi treatments. SIGNIFICANCE: p53 gain-of-function mutant 273H and PARP1 interact with replication forks and could serve as potential biomarkers for breast cancer sensitivity to PARP inhibitors. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/80/3/394/F1.large.jpg.
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Affiliation(s)
- Gu Xiao
- The Department of Biological Sciences Hunter College, Belfer Building, City University of New York, New York, New York
| | - Devon Lundine
- The Department of Biological Sciences Hunter College, Belfer Building, City University of New York, New York, New York
- The Graduate Center Biology and Biochemistry PhD Programs of City University of New York, New York, New York
| | - George K Annor
- The Department of Biological Sciences Hunter College, Belfer Building, City University of New York, New York, New York
- The Graduate Center Biology and Biochemistry PhD Programs of City University of New York, New York, New York
| | - Jorge Canar
- The Department of Biological Sciences Hunter College, Belfer Building, City University of New York, New York, New York
| | - Viola Ellison
- The Department of Biological Sciences Hunter College, Belfer Building, City University of New York, New York, New York
| | - Alla Polotskaia
- The Department of Biological Sciences Hunter College, Belfer Building, City University of New York, New York, New York
| | - Patrick L Donabedian
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Thomas Reiner
- Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York
- Department of Radiology, Weill Cornell Medical College, New York City, New York
- Chemical Biology Program, Memorial Sloan Kettering Cancer Center, New York City, New York
| | - Galina F Khramtsova
- Center for Clinical Cancer Genetics and Global Health and Section of Hematology and Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Olufunmilayo I Olopade
- Center for Clinical Cancer Genetics and Global Health and Section of Hematology and Oncology, Department of Medicine, University of Chicago, Chicago, Illinois
| | - Alexander Mazo
- Department of Biochemistry and Molecular Biology and Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Jill Bargonetti
- The Department of Biological Sciences Hunter College, Belfer Building, City University of New York, New York, New York.
- The Graduate Center Biology and Biochemistry PhD Programs of City University of New York, New York, New York
- Department of Cell and Developmental Biology, Weill Cornell Medical College, New York, New York
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10
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Macciò A, Madeddu C. The mechanism of cancer cell death by PARP inhibitors goes beyond DNA damage alone. Int J Cancer 2019; 145:2594-2596. [PMID: 31070782 DOI: 10.1002/ijc.32392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 09/27/2023]
Affiliation(s)
- Antonio Macciò
- Department of Gynecologic Oncology, Azienda Ospedaliera Brotzu, Cagliari, Italy
| | - Clelia Madeddu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
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11
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De Vincentis G, Gerritsen W, Gschwend JE, Hacker M, Lewington V, O'Sullivan JM, Oya M, Pacilio M, Parker C, Shore N, Sartor O. Advances in targeted alpha therapy for prostate cancer. Ann Oncol 2019; 30:1728-1739. [PMID: 31418764 PMCID: PMC6927314 DOI: 10.1093/annonc/mdz270] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Amongst therapeutic radiopharmaceuticals, targeted alpha therapy (TαT) can deliver potent and local radiation selectively to cancer cells as well as the tumor microenvironment and thereby control cancer while minimizing toxicity. In this review, we discuss the history, progress, and future potential of TαT in the treatment of prostate cancer, including dosimetry-individualized treatment planning, combinations with small-molecule therapies, and conjugation to molecules directed against antigens expressed by prostate cancer cells, such as prostate-specific membrane antigen (PSMA) or components of the tumor microenvironment. A clinical proof of concept that TαT is efficacious in treating bone-metastatic castration-resistant prostate cancer has been demonstrated by radium-223 via improved overall survival and long-term safety/tolerability in the phase III ALSYMPCA trial. Dosimetry calculation and pharmacokinetic measurements of TαT provide the potential for optimization and individualized treatment planning for a precision medicine-based cancer management paradigm. The ability to combine TαTs with other agents, including chemotherapy, androgen receptor-targeting agents, DNA repair inhibitors, and immuno-oncology agents, is under investigation. Currently, TαTs that specifically target prostate cancer cells expressing PSMA represents a promising therapeutic approach. Both PSMA-targeted actinium-225 and thorium-227 conjugates are under investigation. The described clinical benefit, safety and tolerability of radium-223 and the recent progress in TαT trial development suggest that TαT occupies an important new role in prostate cancer treatment. Ongoing studies with newer dosimetry methods, PSMA targeting, and novel approaches to combination therapies should expand the utility of TαT in prostate cancer treatment.
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Affiliation(s)
- G De Vincentis
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, Sapienza, University of Rome, Rome, Italy
| | - W Gerritsen
- Department of Medical Oncology, Radboud UMC, Nijmegen, The Netherlands
| | - J E Gschwend
- Department of Urology, Technical University of Munich, Rechts der Isar Medical Center, Munich, Germany
| | - M Hacker
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - V Lewington
- Department of Imaging Sciences and Biomedical Engineering, King's College, London, UK
| | - J M O'Sullivan
- Center for Cancer Research and Cell Biology, Queen's University Belfast, Northern Ireland Cancer Center, Belfast City Hospital, Belfast, Northern Ireland
| | - M Oya
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - M Pacilio
- Medical Physics Department, "Policlinico Umberto I" University Hospital, Rome, Italy
| | - C Parker
- The Royal Marsden Hospital, Sutton, UK
| | - N Shore
- Carolina Urologic Research Center, Myrtle Beach
| | - O Sartor
- Tulane Cancer Center, Tulane University, New Orleans, USA.
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12
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Kovacs K, Vaczy A, Fekete K, Kovari P, Atlasz T, Reglodi D, Gabriel R, Gallyas F, Sumegi B. PARP Inhibitor Protects Against Chronic Hypoxia/Reoxygenation-Induced Retinal Injury by Regulation of MAPKs, HIF1α, Nrf2, and NFκB. Invest Ophthalmol Vis Sci 2019; 60:1478-1490. [PMID: 30973576 DOI: 10.1167/iovs.18-25936] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose In the eye, chronic hypoxia/reoxygenation (H/R) contributes to the development of a number of ocular disorders. H/R induces the production of reactive oxygen species (ROS), leading to poly(ADP-ribose) polymerase-1 (PARP1) activation that promotes inflammation, cell death, and disease progression. Here, we analyzed the protective effects of the PARP1 inhibitor olaparib in H/R-induced retina injury and investigated the signaling mechanisms involved. Methods A rat retinal H/R model was used to detect histologic and biochemical changes in the retina. Results H/R induced reductions in the thickness of most retinal layers, which were prevented by olaparib. Furthermore, H/R caused increased levels of Akt and glycogen synthase kinase-3β phosphorylation, which were further increased by olaparib, contributing to retina protection. By contrast, H/R-induced c-Jun N-terminal kinase and p38 mitogen-activated protein kinases (MAPK) phosphorylation and activation were reduced by olaparib, via mitogen-activated protein kinase phosphatase 1 (MKP-1) expression. In addition, H/R-induced hypoxia-inducible factor 1α (HIF1α) levels were decreased by olaparib, which possibly contributed to reduced VEGF expression. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) expression was slightly increased by H/R and was further activated by olaparib. Nuclear factor-κB (NFκB) was also activated by H/R through phosphorylation (Ser536) and acetylation (Lys310) of the p65 subunit, although this was significantly reduced by olaparib. Conclusions Olaparib reduced H/R-induced degenerative changes in retinal morphology. The protective mechanisms of olaparib most probably involved Nrf2 activation and ROS reduction, as well as normalization of HIF1α and related VEGF expression. In addition, olaparib reduced inflammation by NFκB dephosphorylation/inactivation, possibly via the PARP1 inhibition-MKP-1 activation-p38 MAPK inhibition pathway. PARP inhibitors represent potential therapeutics in H/R-induced retinal disease.
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Affiliation(s)
- Krisztina Kovacs
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, Pécs, Hungary
| | - Alexandra Vaczy
- Department of Anatomy, MTA-PTE PACAP Research Group, University of Pécs Medical School, Pécs, Hungary
| | - Katalin Fekete
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, Pécs, Hungary
| | - Petra Kovari
- Department of Anatomy, MTA-PTE PACAP Research Group, University of Pécs Medical School, Pécs, Hungary
| | - Tamas Atlasz
- Department of Anatomy, MTA-PTE PACAP Research Group, University of Pécs Medical School, Pécs, Hungary.,Department of Sportbiology, Faculty of Sciences, University of Pécs, Pécs, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary
| | - Dora Reglodi
- Department of Anatomy, MTA-PTE PACAP Research Group, University of Pécs Medical School, Pécs, Hungary
| | - Robert Gabriel
- Department of Biology, Faculty of Sciences, University of Pécs, Pécs, Hungary
| | - Ferenc Gallyas
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, Pécs, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary
| | - Balazs Sumegi
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, Pécs, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary
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13
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Cseh AM, Fabian Z, Quintana-Cabrera R, Szabo A, Eros K, Soriano ME, Gallyas F, Scorrano L, Sumegi B. PARP Inhibitor PJ34 Protects Mitochondria and Induces DNA-Damage Mediated Apoptosis in Combination With Cisplatin or Temozolomide in B16F10 Melanoma Cells. Front Physiol 2019; 10:538. [PMID: 31133874 PMCID: PMC6514236 DOI: 10.3389/fphys.2019.00538] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 04/15/2019] [Indexed: 12/24/2022] Open
Abstract
PARP-1 inhibition has recently been employed in both mono- and combination therapies in various malignancies including melanoma with both promising and contradicting results reported. Although deeper understanding of the underlying molecular mechanisms may help improving clinical modalities, the complex cellular effects of PARP inhibitors make disentangling of the mechanisms involved in combination therapies difficult. Here, we used two cytostatic agents used in melanoma therapies in combination with PARP inhibition to have an insight into cellular events using the B16F10 melanoma model. We found that, when used in combination with cisplatin or temozolomide, pharmacologic blockade of PARP-1 by PJ34 augmented the DNA-damaging and cytotoxic effects of both alkylating compounds. Interestingly, however, this synergism unfolds relatively slowly and is preceded by molecular events that are traditionally believed to support cell survival including the stabilization of mitochondrial membrane potential and morphology. Our data indicate that the PARP inhibitor PJ34 has, apparently, opposing effects on the mitochondrial structure and cell survival. While, initially, it stimulates mitochondrial fusion and hyperpolarization, hallmarks of mitochondrial protection, it enhances the cytotoxic effects of alkylating agents at later stages. These findings may contribute to the optimization of PARP inhibitor-based antineoplastic modalities.
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Affiliation(s)
- Anna Maria Cseh
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Department of Biology, University of Padova, Padua, Italy
| | - Zsolt Fabian
- Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Ruben Quintana-Cabrera
- Institute of Functional Biology and Genomics, University of Salamanca, Consejo Superior de Investigaciones Científicas, Salamanca, Spain.,Institute of Biomedical Research of Salamanca, University Hospital of Salamanca, University of Salamanca, Consejo Superior de Investigaciones Científicas, Salamanca, Spain.,CIBERFES, Instituto de Salud Carlos III, Madrid, Spain
| | - Aliz Szabo
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary
| | - Krisztian Eros
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary
| | - Maria Eugenia Soriano
- Department of Biology, University of Padova, Padua, Italy.,Venetian Institute of Molecular Medicine, Padua, Italy
| | - Ferenc Gallyas
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary
| | - Luca Scorrano
- Department of Biology, University of Padova, Padua, Italy.,Venetian Institute of Molecular Medicine, Padua, Italy
| | - Balazs Sumegi
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, Hungary.,Nuclear-Mitochondrial Interactions Research Group, Hungarian Academy of Sciences, Budapest, Hungary.,Szentagothai Research Centre, University of Pécs, Pécs, Hungary
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14
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Siraj AK, Pratheeshkumar P, Parvathareddy SK, Divya SP, Al-Dayel F, Tulbah A, Ajarim D, Al-Kuraya KS. Overexpression of PARP is an independent prognostic marker for poor survival in Middle Eastern breast cancer and its inhibition can be enhanced with embelin co-treatment. Oncotarget 2018; 9:37319-37332. [PMID: 30647872 PMCID: PMC6324669 DOI: 10.18632/oncotarget.26470] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 12/04/2018] [Indexed: 12/29/2022] Open
Abstract
Patients with aggressive breast cancer (BC) subtypes usually don’t have favorable prognosis despite the improvement in treatment modalities. These cancers still remain a major cause of morbidity and mortality in females. This has fostered a major effort to discover actionable molecular targets to treat these patients. Poly ADP ribose polymerase (PARP) is one of these molecular targets that are under comprehensive investigation for treatment of such tumors. However, its role in the pathogenesis of BC from Middle Eastern ethnicity has not yet been explored. Therefore, we examined the expression of PARP protein in a large cohort of over 1000 Middle Eastern BC cases by immunohistochemistry. Correlation with clinico-pathological parameters were performed. Nuclear PARP overexpression was observed in 44.7% of all BC cases and was significantly associated with aggressive clinico-pathological markers. Interestingly, nuclear PARP overexpression was an independent predictor of poor prognosis. PARP overexpression was also directly associated with XIAP overexpression, with PARP and XIAP co-expression in 15.8% (159/1008) of our cases. We showed that combined inhibition of PARP by olaparib and XIAP by embelin significantly and synergistically inhibited cell growth and induced apoptosis in BC cell lines. Finally, co-treatment of olaparib and embelin regressed BC xenograft tumor growth in nude mice. Our results revealed the role of PARP in Middle Eastern BC pathogenesis and prognosis. Furthermore, our data support the potential clinical development of combined inhibition of PARP and XIAP, which eventually could extend the utility of olaparib beyond BRCA deficient cancer.
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Affiliation(s)
- Abdul Khalid Siraj
- Human Cancer Genomic Research, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Poyil Pratheeshkumar
- Human Cancer Genomic Research, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | | | - Sasidharan Padmaja Divya
- Human Cancer Genomic Research, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Fouad Al-Dayel
- Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Asma Tulbah
- Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Dahish Ajarim
- Department of Oncology Centre, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Khawla S Al-Kuraya
- Human Cancer Genomic Research, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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15
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Datta A, Brosh RM. New Insights Into DNA Helicases as Druggable Targets for Cancer Therapy. Front Mol Biosci 2018; 5:59. [PMID: 29998112 PMCID: PMC6028597 DOI: 10.3389/fmolb.2018.00059] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 06/06/2018] [Indexed: 12/28/2022] Open
Abstract
Small molecules that deter the functions of DNA damage response machinery are postulated to be useful for enhancing the DNA damaging effects of chemotherapy or ionizing radiation treatments to combat cancer by impairing the proliferative capacity of rapidly dividing cells that accumulate replicative lesions. Chemically induced or genetic synthetic lethality is a promising area in personalized medicine, but it remains to be optimized. A new target in cancer therapy is DNA unwinding enzymes known as helicases. Helicases play critical roles in all aspects of nucleic acid metabolism. We and others have investigated small molecule targeted inhibition of helicase function by compound screens using biochemical and cell-based approaches. Small molecule-induced trapping of DNA helicases may represent a generalized mechanism exemplified by certain topoisomerase and PARP inhibitors that exert poisonous consequences, especially in rapidly dividing cancer cells. Taking the lead from the broader field of DNA repair inhibitors and new information gleaned from structural and biochemical studies of DNA helicases, we predict that an emerging strategy to identify useful helicase-interacting compounds will be structure-based molecular docking interfaced with a computational approach. Potency, specificity, drug resistance, and bioavailability of helicase inhibitor drugs and targeting such compounds to subcellular compartments where the respective helicases operate must be addressed. Beyond cancer therapy, continued and new developments in this area may lead to the discovery of helicase-interacting compounds that chemically rescue clinically relevant helicase missense mutant proteins or activate the catalytic function of wild-type DNA helicases, which may have novel therapeutic application.
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Affiliation(s)
- Arindam Datta
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, NIH Biomedical Research Center, Baltimore, MD, United States
| | - Robert M Brosh
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, NIH Biomedical Research Center, Baltimore, MD, United States
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16
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Targeting Oxidatively Induced DNA Damage Response in Cancer: Opportunities for Novel Cancer Therapies. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2389523. [PMID: 29770165 PMCID: PMC5892224 DOI: 10.1155/2018/2389523] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 01/22/2018] [Indexed: 12/17/2022]
Abstract
Cancer is a death cause in economically developed countries that results growing also in developing countries. Improved outcome through targeted interventions faces the scarce selectivity of the therapies and the development of resistance to them that compromise the therapeutic effects. Genomic instability is a typical cancer hallmark due to DNA damage by genetic mutations, reactive oxygen and nitrogen species, ionizing radiation, and chemotherapeutic agents. DNA lesions can induce and/or support various diseases, including cancer. The DNA damage response (DDR) is a crucial signaling-transduction network that promotes cell cycle arrest or cell death to repair DNA lesions. DDR dysregulation favors tumor growth as downregulated or defective DDR generates genomic instability, while upregulated DDR may confer treatment resistance. Redox homeostasis deeply and capillary affects DDR as ROS activate/inhibit proteins and enzymes integral to DDR both in healthy and cancer cells, although by different routes. DDR regulation through modulating ROS homeostasis is under investigation as anticancer opportunity, also in combination with other treatments since ROS affect DDR differently in the patients during cancer development and treatment. Here, we highlight ROS-sensitive proteins whose regulation in oxidatively induced DDR might allow for selective strategies against cancer that are better tailored to the patients.
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17
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Glorieux M, Dok R, Nuyts S. Novel DNA targeted therapies for head and neck cancers: clinical potential and biomarkers. Oncotarget 2017; 8:81662-81678. [PMID: 29113422 PMCID: PMC5655317 DOI: 10.18632/oncotarget.20953] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/27/2017] [Indexed: 01/24/2023] Open
Abstract
Head and neck squamous cell carcinoma is the sixth most common cancer worldwide and despite advances in treatment over the last years, there is still a relapse rate of 50%. New therapeutic agents are awaited to increase the survival of patients. DNA repair targeted agents in combination with standard DNA damaging therapies are a recent evolution in cancer treatment. These agents focus on the DNA damage repair pathways in cancer cells, which are often involved in therapeutic resistance. Interesting targets to overcome these cancer defense mechanisms are: PARP, DNA-PK, PI3K, ATM, ATR, CHK1/2, and WEE1 inhibitors. The application of DNA targeted agents in head and neck squamous cell cancer showed promising preclinical results which are translated to multiple ongoing clinical trials, although no FDA approval has emerged yet. Biomarkers are necessary to select the patients that can benefit the most from this treatment, although adequate biomarkers are limited and validation is needed to predict therapeutic response.
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Affiliation(s)
- Mary Glorieux
- KU Leuven, University of Leuven, Department of Oncology, Laboratory of Experimental Radiotherapy, 3000 Leuven, Belgium
| | - Rüveyda Dok
- KU Leuven, University of Leuven, Department of Oncology, Laboratory of Experimental Radiotherapy, 3000 Leuven, Belgium
| | - Sandra Nuyts
- KU Leuven, University of Leuven, Department of Oncology, Laboratory of Experimental Radiotherapy, 3000 Leuven, Belgium
- Department of Radiation Oncology, Leuven Cancer Institute, UZ Leuven, 3000 Leuven, Belgium
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