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Keshavarz Shahbaz S, Koushki K, Keshavarz Hedayati S, McCloskey AP, Kesharwani P, Naderi Y, Sahebkar A. Polymer nanotherapeutics: A promising approach toward microglial inhibition in neurodegenerative diseases. Med Res Rev 2024. [PMID: 39031446 DOI: 10.1002/med.22064] [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: 04/13/2022] [Revised: 01/30/2024] [Accepted: 07/01/2024] [Indexed: 07/22/2024]
Abstract
Nanoparticles (NPs) that target multiple transport mechanisms facilitate targeted delivery of active therapeutic agents to the central nervous system (CNS) and improve therapeutic transport and efficacy across the blood-brain barrier (BBB). CNS nanotherapeutics mostly target neurons and endothelial cells, however, microglial immune cells are the first line of defense against neuronal damage and brain infections. Through triggering release of inflammatory cytokines, chemokines and proteases, microglia can however precipitate neurological damage-a significant factor in neurodegenerative diseases. Thus, microglial inhibitory agents are attracting much attention among those researching and developing novel treatments for neurodegenerative disorders. The most established inhibitors of microglia investigated to date are resveratrol, curcumin, quercetin, and minocycline. Thus, there is great interest in developing novel agents that can bypass or easily cross the BBB. One such approach is the use of modified-nanocarriers as, or for, delivery of, therapeutic agents to the brain and wider CNS. For microglial inhibition, polymeric NPs are the preferred vehicles for choice. Here, we summarize the immunologic and neuroinflammatory role of microglia, established microglia inhibitor agents, challenges of CNS drug delivery, and the nanotherapeutics explored for microglia inhibition to date. We also discuss applications of the currently considered "most useful" polymeric NPs for microglial-inhibitor drug delivery in CNS-related diseases.
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Affiliation(s)
- Sanaz Keshavarz Shahbaz
- Cellular and Molecular Research Center, Research Institute for prevention of Non-Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran
- USERN Office, Qazvin University of Medical Science, Qazvin, Iran
| | - Khadije Koushki
- Department of Neurosurgery, University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | | | - Alice P McCloskey
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Yazdan Naderi
- Department of Pharmacology, Faculty of Medicine, Qazvin University of Medical Science, Qazvin, Iran
| | - Amirhossein Sahebkar
- Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Silant’ev VE, Belousov AS, Trukhin FO, Struppul NE, Shmelev ME, Patlay AA, Shatilov RA, Kumeiko VV. Rational Design of Pectin-Chitosan Polyelectrolyte Nanoparticles for Enhanced Temozolomide Delivery in Brain Tumor Therapy. Biomedicines 2024; 12:1393. [PMID: 39061967 PMCID: PMC11273711 DOI: 10.3390/biomedicines12071393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 07/28/2024] Open
Abstract
Conventional chemotherapeutic approaches currently used for brain tumor treatment have low efficiency in targeted drug delivery and often have non-target toxicity. Development of stable and effective drug delivery vehicles for the most incurable diseases is one of the urgent biomedical challenges. We have developed polymer nanoparticles (NPs) with improved temozolomide (TMZ) delivery for promising brain tumor therapy, performing a rational design of polyelectrolyte complexes of oppositely charged polysaccharides of cationic chitosan and anionic pectin. The NPs' diameter (30 to 330 nm) and zeta-potential (-29 to 73 mV) varied according to the initial mass ratios of the biopolymers. The evaluation of nanomechanical parameters of native NPs demonstrated changes in Young's modulus from 58 to 234 kPa and adhesion from -0.3 to -3.57 pN. Possible mechanisms of NPs' formation preliminary based on ionic interactions between ionogenic functional groups were proposed by IR spectroscopy and dynamic rheology. The study of the parameters and kinetics of TMZ sorption made it possible to identify compounds that most effectively immobilize and release the active substance in model liquids that simulate the internal environment of the body. A polyelectrolyte carrier based on an equal ratio of pectin-chitosan (0.1% by weight) was selected as the most effective for the delivery of TMZ among a series of obtained NPs, which indicates a promising approach to the treatment of brain tumors.
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Affiliation(s)
- Vladimir E. Silant’ev
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
- Laboratory of Electrochemical Processes, Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690022, Russia
| | - Andrei S. Belousov
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
| | - Fedor O. Trukhin
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
| | - Nadezhda E. Struppul
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
| | - Mikhail E. Shmelev
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690041, Russia
| | - Aleksandra A. Patlay
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
| | - Roman A. Shatilov
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
| | - Vadim V. Kumeiko
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok 690922, Russia; (A.S.B.); (F.O.T.); (N.E.S.); (M.E.S.); (A.A.P.); (R.A.S.)
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690041, Russia
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Dewi MK, Chaerunisaa AY, Muhaimin M, Joni IM. Improved Activity of Herbal Medicines through Nanotechnology. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12224073. [PMID: 36432358 PMCID: PMC9695685 DOI: 10.3390/nano12224073] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 06/12/2023]
Abstract
Phytochemicals or secondary metabolites are substances produced by plants that have been shown to have many biological activities, providing a scientific basis for using herbs in traditional medicine. In addition, the use of herbs is considered to be safe and more economical compared to synthetic medicine. However, herbal medicines have disadvantages, such as having low solubility, stability, and bioavailability. Some of them can undergo physical and chemical degradation, which reduces their pharmacological activity. In recent decades, nanotechnology-based herbal drug formulations have attracted attention due to their enhanced activity and potential for overcoming the problems associated with herbal medicine. Approaches using nanotechnology-based delivery systems that are biocompatible, biodegradable, and based on lipids, polymers, or nanoemulsions can increase the solubility, stability, bioavailability, and pharmacological activity of herbals. This review article aims to provide an overview of the latest advances in the development of nanotechnology-based herbal drug formulations for increased activity, as well as a summary of the challenges these delivery systems for herbal medicines face.
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Affiliation(s)
- Mayang Kusuma Dewi
- Doctoral Study Program, Faculty of Pharmacy, Universitas Padjadjaran, Jl. Raya Jatinangor Km 21,5, Sumedang 45363, Indonesia
| | - Anis Yohana Chaerunisaa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Muhaimin Muhaimin
- Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - I Made Joni
- Functional Nano Powder University Center of Excellence (FiNder U CoE), Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km 21, Jatinangor 45363, Indonesia
- Department of Physics, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, Jatinangor 45363, Indonesia
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Gvoic M, Vukmirovic S, Al-Salami H, Mooranian A, Mikov M, Stankov K. Bile acids as novel enhancers of CNS targeting antitumor drugs: a comprehensive review. Pharm Dev Technol 2021; 26:617-633. [PMID: 33882793 DOI: 10.1080/10837450.2021.1916032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Despite a relatively low prevalence of primary brain tumors, they continuously attract scientific interest because of the complexity of their treatment due to their location behind the blood-brain barrier. The main challenge in treatment of brain tumors is not the efficacy of the drugs, per se, but the low efficiency of drug delivery to malignant cells. At the core of the problem is the complex structure of the blood-brain barrier. Nowadays, there is evidence supporting the claim that bile acids have the ability to cross the blood-brain barrier. That ability can be exploited by taking a part in novel drug carrier designs. Bile acids represent a drug carrier system as a part of a mixed micelle composition, bilosomes and conjugates with various drugs. This review discusses the current knowledge related to bile acid molecules as drug penetration modifying agents, with the focus on central nervous system antitumor drug delivery.
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Affiliation(s)
- Marija Gvoic
- Department of Pharmacology and Toxicology and Clinical Pharmacology, Medical faculty of Novi Sad, University of Novi sad, Novi Sad, Serbia
| | - Sasa Vukmirovic
- Department of Pharmacology and Toxicology and Clinical Pharmacology, Medical faculty of Novi Sad, University of Novi sad, Novi Sad, Serbia
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
| | - Armin Mooranian
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
| | - Momir Mikov
- Department of Pharmacology and Toxicology and Clinical Pharmacology, Medical faculty of Novi Sad, University of Novi sad, Novi Sad, Serbia
| | - Karmen Stankov
- Department of Biochemistry, Medical faculty of Novi Sad, University of Novi Sad, Novi Sad, Serbia
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Di Cintio F, Dal Bo M, Baboci L, De Mattia E, Polano M, Toffoli G. The Molecular and Microenvironmental Landscape of Glioblastomas: Implications for the Novel Treatment Choices. Front Neurosci 2020; 14:603647. [PMID: 33324155 PMCID: PMC7724040 DOI: 10.3389/fnins.2020.603647] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/03/2020] [Indexed: 12/20/2022] Open
Abstract
Glioblastoma (GBM) is the most frequent and aggressive primary central nervous system tumor. Surgery followed by radiotherapy and chemotherapy with alkylating agents constitutes standard first-line treatment of GBM. Complete resection of the GBM tumors is generally not possible given its high invasive features. Although this combination therapy can prolong survival, the prognosis is still poor due to several factors including chemoresistance. In recent years, a comprehensive characterization of the GBM-associated molecular signature has been performed. This has allowed the possibility to introduce a more personalized therapeutic approach for GBM, in which novel targeted therapies, including those employing tyrosine kinase inhibitors (TKIs), could be employed. The GBM tumor microenvironment (TME) exerts a key role in GBM tumor progression, in particular by providing an immunosuppressive state with low numbers of tumor-infiltrating lymphocytes (TILs) and other immune effector cell types that contributes to tumor proliferation and growth. The use of immune checkpoint inhibitors (ICIs) has been successfully introduced in numerous advanced cancers as well as promising results have been shown for the use of these antibodies in untreated brain metastases from melanoma and from non-small cell lung carcinoma (NSCLC). Consequently, the use of PD-1/PD-L1 inhibitors has also been proposed in several clinical trials for the treatment of GBM. In the present review, we will outline the main GBM molecular and TME aspects providing also the grounds for novel targeted therapies and immunotherapies using ICIs for GBM.
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Affiliation(s)
- Federica Di Cintio
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Michele Dal Bo
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Lorena Baboci
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Elena De Mattia
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Maurizio Polano
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
| | - Giuseppe Toffoli
- Experimental and Clinical Pharmacology Unit, Centro di Riferimento Oncologico di Aviano, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Aviano, Italy
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Zhao N, Francis NL, Calvelli HR, Moghe PV. Microglia-targeting nanotherapeutics for neurodegenerative diseases. APL Bioeng 2020; 4:030902. [PMID: 32923843 PMCID: PMC7481010 DOI: 10.1063/5.0013178] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/07/2020] [Indexed: 12/14/2022] Open
Abstract
Advances in nanotechnology have enabled the design of nanotherapeutic platforms that could address the challenges of targeted delivery of active therapeutic agents to the central nervous system (CNS). While the majority of previous research studies on CNS nanotherapeutics have focused on neurons and endothelial cells, the predominant resident immune cells of the CNS, microglia, are also emerging as a promising cellular target for neurodegeneration considering their prominent role in neuroinflammation. Under normal physiological conditions, microglia protect neurons by removing pathological agents. However, long-term exposure of microglia to stimulants will cause sustained activation and lead to neuronal damage due to the release of pro-inflammatory agents, resulting in neuroinflammation and neurodegeneration. This Perspective highlights criteria to be considered when designing microglia-targeting nanotherapeutics for the treatment of neurodegenerative disorders. These criteria include conjugating specific microglial receptor-targeting ligands or peptides to the nanoparticle surface to achieve targeted delivery, leveraging microglial phagocytic properties, and utilizing biocompatible and biodegradable nanomaterials with low immune reactivity and neurotoxicity. In addition, certain therapeutic agents for the controlled inhibition of toxic protein aggregation and for modulation of microglial activation pathways can also be incorporated within the nanoparticle structure without compromising stability. Overall, considering the multifaceted disease mechanisms of neurodegeneration, microglia-targeted nanodrugs and nanotherapeutic particles may have the potential to resolve multiple pathological determinants of the disease and to guide a shift in the microglial phenotype spectrum toward a more neuroprotective state.
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Affiliation(s)
- Nanxia Zhao
- Department of Chemical and Biochemical Engineering, 98 Brett Rd., Rutgers University, Piscataway, New Jersey 08854, USA
| | - Nicola L. Francis
- Department of Biomedical Engineering, 599 Taylor Rd., Rutgers University, Piscataway, New Jersey 08854, USA
| | - Hannah R. Calvelli
- Department of Molecular Biology and Biochemistry, 604 Allison Rd., Rutgers University, Piscataway, New Jersey 08854, USA
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8-Ethynylxanthines as promising antiproliferative agents, angiogenesis inhibitors, and calcium channel activity modulators. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02730-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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8
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Reddy RG, Bhat UA, Chakravarty S, Kumar A. Advances in histone deacetylase inhibitors in targeting glioblastoma stem cells. Cancer Chemother Pharmacol 2020; 86:165-179. [PMID: 32638092 DOI: 10.1007/s00280-020-04109-w] [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: 03/19/2020] [Accepted: 06/26/2020] [Indexed: 12/17/2022]
Abstract
Glioblastoma multiforme (GBM) is a lethal grade IV glioma (WHO classification) and widely prevalent primary brain tumor in adults. GBM tumors harbor cellular heterogeneity with the presence of a small subpopulation of tumor cells, described as GBM cancer stem cells (CSCs) that pose resistance to standard anticancer regimens and eventually mediate aggressive relapse or intractable progressive GBM. Existing conventional anticancer therapies for GBM do not target GBM stem cells and are mostly palliative; therefore, exploration of new strategies to target stem cells of GBM has to be prioritized for the development of effective GBM therapy. Recent developments in the understanding of GBM pathophysiology demonstrated dysregulation of epigenetic mechanisms along with the genetic changes in GBM CSCs. Altered expression/activity of key epigenetic regulators, especially histone deacetylases (HDACs) in GBM stem cells has been associated with poor prognosis; inhibiting the activity of HDACs using histone deacetylase inhibitors (HDACi) has been promising as mono-therapeutic in targeting GBM and in sensitizing GBM stem cells to an existing anticancer regimen. Here, we review the development of pan/selective HDACi as potential anticancer agents in targeting the stem cells of glioblastoma as a mono or combination therapy.
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Affiliation(s)
- R Gajendra Reddy
- CSIR-Centre for Cellular and Molecular Biology, Habsiguda, Uppal Road, Hyderabad, 500007, Telangana, India
| | - Unis Ahmad Bhat
- CSIR-Centre for Cellular and Molecular Biology, Habsiguda, Uppal Road, Hyderabad, 500007, Telangana, India
| | - Sumana Chakravarty
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad, 500007, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Arvind Kumar
- CSIR-Centre for Cellular and Molecular Biology, Habsiguda, Uppal Road, Hyderabad, 500007, Telangana, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India.
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9
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Steffens L, Morás AM, Arantes PR, Masterson K, Cao Z, Nugent M, Moura DJ. Electrospun PVA-Dacarbazine nanofibers as a novel nano brain-implant for treatment of glioblastoma: in silico and in vitro characterization. Eur J Pharm Sci 2020; 143:105183. [DOI: 10.1016/j.ejps.2019.105183] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/07/2019] [Accepted: 12/13/2019] [Indexed: 01/06/2023]
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10
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Sajesh BV, On NH, Omar R, Alrushaid S, Kopec BM, Wang WG, Sun HD, Lillico R, Lakowski TM, Siahaan TJ, Davies NM, Puno PT, Vanan MI, Miller DW. Validation of Cadherin HAV6 Peptide in the Transient Modulation of the Blood-Brain Barrier for the Treatment of Brain Tumors. Pharmaceutics 2019; 11:pharmaceutics11090481. [PMID: 31533285 PMCID: PMC6781504 DOI: 10.3390/pharmaceutics11090481] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 08/29/2019] [Accepted: 09/03/2019] [Indexed: 12/11/2022] Open
Abstract
The blood-brain barrier (BBB) poses a major obstacle by preventing potential therapeutic agents from reaching their intended brain targets at sufficient concentrations. While transient disruption of the BBB has been used to enhance chemotherapeutic efficacy in treating brain tumors, limitations in terms of magnitude and duration of BBB disruption exist. In the present study, the preliminary safety and efficacy profile of HAV6, a peptide that binds to the external domains of cadherin, to transiently open the BBB and improve the delivery of a therapeutic agent, was evaluated in a murine brain tumor model. Transient opening of the BBB in response to HAV6 peptide administration was quantitatively characterized using both a gadolinium magnetic resonance imaging (MRI) contrast agent and adenanthin (Ade), the intended therapeutic agent. The effects of HAV6 peptide on BBB integrity and the efficacy of concurrent administration of HAV6 peptide and the small molecule inhibitor, Ade, in the growth and progression of an orthotopic medulloblastoma mouse model using human D425 tumor cells was examined. Systemic administration of HAV6 peptide caused transient, reversible disruption of BBB in mice. Increases in BBB permeability produced by HAV6 were rapid in onset and observed in all regions of the brain examined. Concurrent administration of HAV6 peptide with Ade, a BBB impermeable inhibitor of Peroxiredoxin-1, caused reduced tumor growth and increased survival in mice bearing medulloblastoma. The rapid onset and transient nature of the BBB modulation produced with the HAV6 peptide along with its uniform disruption and biocompatibility is well-suited for CNS drug delivery applications, especially in the treatment of brain tumors.
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Affiliation(s)
- Babu V Sajesh
- Research Institute in Oncology and Hematology, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
| | - Ngoc H On
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 0T6, Canada
| | - Refaat Omar
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 0T6, Canada
| | - Samaa Alrushaid
- College of Pharmacy Pharmaceutical Analysis Laboratory, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kuwait University, Safat 13110, Kuwait
| | - Brian M Kopec
- Department of Pharmaceutical Chemistry, University of Kansas, Kansas, KS 66205, USA
| | - Wei-Guang Wang
- Kunming Institute of Botany, Kunming 650201, Yunnan, China
| | - Han-Dong Sun
- Kunming Institute of Botany, Kunming 650201, Yunnan, China
| | - Ryan Lillico
- College of Pharmacy Pharmaceutical Analysis Laboratory, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
| | - Ted M Lakowski
- College of Pharmacy Pharmaceutical Analysis Laboratory, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
| | - Teruna J Siahaan
- Department of Pharmaceutical Chemistry, University of Kansas, Kansas, KS 66205, USA
| | - Neal M Davies
- Pharmacy and Pharmaceutical Sciences, University of Alberta, Alberta, AB T6G 2R3, Canada
| | | | - Magimairajan Issai Vanan
- Research Institute in Oncology and Hematology, University of Manitoba, Winnipeg, MB R3E 0V9, Canada.
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
| | - Donald W Miller
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, MB R3E 0T6, Canada.
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11
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Lajous H, Lelièvre B, Vauléon E, Lecomte P, Garcion E. Rethinking Alkylating(-Like) Agents for Solid Tumor Management. Trends Pharmacol Sci 2019; 40:342-357. [PMID: 30979523 DOI: 10.1016/j.tips.2019.03.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/15/2019] [Accepted: 03/06/2019] [Indexed: 12/20/2022]
Abstract
Although old molecules, alkylating agents and platinum derivatives are still widely used in the treatment of various solid tumors. However, systemic toxicity and cellular resistance mechanisms impede their efficacy. Innovative strategies, including local administration, optimization of treatment schedule/dosage, synergistic combinations, and the encapsulation of bioactive molecules in smart, multifunctional drug delivery systems, have shown promising results in potentiating anticancer activity while circumventing such hurdles. Furthermore, questioning of the old paradigm according to which nuclear DNA is the critical target of their anticancer activity has shed light on subcellular alternative and neglected targets that obviously participate in the mediation of cytotoxicity or resistance. Thus, rethinking of the use of these pivotal antineoplastic agents appears critical to improve clinical outcomes in the management of solid tumors.
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Affiliation(s)
- Hélène Lajous
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France; Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liege, B6a Sart-Tilman, B-4000 Liege, Belgium
| | - Bénédicte Lelièvre
- Centre Régional de Pharmacovigilance, Laboratoire de Pharmacologie-Toxicologie, CHU Angers, 4 rue Larrey, F-49100 Angers, France
| | - Elodie Vauléon
- Centre Eugène Marquis, Rennes, France; INSERM U1242, Université de Rennes 1, Rennes, France
| | - Philippe Lecomte
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liege, B6a Sart-Tilman, B-4000 Liege, Belgium; Equivalent contribution
| | - Emmanuel Garcion
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France; Equivalent contribution.
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12
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Zhang X, Ding K, Wang J, Li X, Zhao P. Chemoresistance caused by the microenvironment of glioblastoma and the corresponding solutions. Biomed Pharmacother 2018; 109:39-46. [PMID: 30391707 DOI: 10.1016/j.biopha.2018.10.063] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 10/03/2018] [Accepted: 10/12/2018] [Indexed: 12/30/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common and aggressive primary human brain tumor. Although comprehensive therapies combining radiotherapy and chemotherapy after surgery can prolong survival, the prognosis is still poor with a median survival of only 14.6 months. Chemoresistance is one of the major causes of relapse as well as poor survival in glioma patients. Therefore, novel strategies to overcome chemoresistance are desperately needed for improved treatment of human GBM. Recent studies have demonstrated that the tumor microenvironment plays a critical role in the chemoresistance of various tumor types, which makes it a suitable target in anti-cancer therapies, as well as a valuable biomarker for prognostic purposes. This review focuses on chemoresistance in GBM induced by stromal cells, including the endothelium of blood vessels, astrocytes, and myeloid cells, as well as non-cellular factors in the tumor microenvironment. Corresponding therapies are discussed, including progressive strategies involving 3-dimensional models integrating engineering as well as biological advances.
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Affiliation(s)
- Xin Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Institute of Brain and Brain-Inspired Science, Shandong University, PR China; Shandong Key Laboratory of Brain Function Remodeling, PR China
| | - Kaikai Ding
- Shandong Key Laboratory of Brain Function Remodeling, PR China; Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, 250012, PR China
| | - Jian Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Institute of Brain and Brain-Inspired Science, Shandong University, PR China; Shandong Key Laboratory of Brain Function Remodeling, PR China; Department of Biomedicine, University of Bergen, 5009, Bergen, Norway
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, Institute of Brain and Brain-Inspired Science, Shandong University, PR China; Shandong Key Laboratory of Brain Function Remodeling, PR China
| | - Peng Zhao
- Department of Neurosurgery, Qilu Hospital of Shandong University, Institute of Brain and Brain-Inspired Science, Shandong University, PR China; Shandong Key Laboratory of Brain Function Remodeling, PR China.
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13
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Kommidi H, Tosi U, Maachani UB, Guo H, Marnell CS, Law B, Souweidane MM, Ting R. 18F-Radiolabeled Panobinostat Allows for Positron Emission Tomography Guided Delivery of a Histone Deacetylase Inhibitor. ACS Med Chem Lett 2018; 9:114-119. [PMID: 29456798 DOI: 10.1021/acsmedchemlett.7b00471] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/08/2018] [Indexed: 01/02/2023] Open
Abstract
Histone deacetylase (HDAC) inhibition is becoming an increasingly popular approach to treat cancer, as HDAC overexpression is common in many malignancies. The blood-brain barrier (BBB) prevents systemically delivered drugs from reaching brain at effective concentration, making small-molecule-HDAC inhibition in brain tumors particularly challenging. To circumvent the BBB, novel routes for administering therapeutics are being considered in the clinic, and a need exists for drugs whose deliveries can be directly imaged, so that effective delivery across the BBB can be monitored. We report chemistry for radiolabeling the HDAC inhibitor, panobinostat, with fluoride-18 (compound-1). Like panobinostat, compound 1 retains nanomolar efficacy in diffuse intrinsic pontine glioma (DIPG IV and XIII) cells (IC50 = 122 and 108 nM, respectively), with lesser activity against U87 glioma. With a favorable therapeutic ratio, 1 is highly selective to glioma and demonstrates considerably less toxicity toward healthy astrocyte controls (IC50 = 5265 nM). Compound 1 is stable in aqueous solution at physiological pH (>7 days, fetal bovine serum), and its delivery can be imaged by positron emission tomography (PET). Compound 1 is synthesized in two steps, and employs rapid, late-stage aqueous isotopic exchange 18F-radiochemistry. PET is used to image the in vivo delivery of [18F]-1 to the murine central nervous system via convection enhanced delivery.
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Affiliation(s)
- Harikrishna Kommidi
- Department
of Radiology, Molecular Imaging Innovations Institute, Weill Cornell Medicine, New York, New York 10065, United States
| | - Umberto Tosi
- Department
of Neurological Surgery, Weill Cornell Medicine, New York, New York 10065, United States
| | - Uday B. Maachani
- Department
of Neurological Surgery, Weill Cornell Medicine, New York, New York 10065, United States
| | - Hua Guo
- Department
of Radiology, Molecular Imaging Innovations Institute, Weill Cornell Medicine, New York, New York 10065, United States
| | - Christopher S. Marnell
- Department
of Neurological Surgery, Weill Cornell Medicine, New York, New York 10065, United States
| | - Benedict Law
- Department
of Radiology, Molecular Imaging Innovations Institute, Weill Cornell Medicine, New York, New York 10065, United States
| | - Mark M. Souweidane
- Department
of Neurological Surgery, Weill Cornell Medicine, New York, New York 10065, United States
| | - Richard Ting
- Department
of Radiology, Molecular Imaging Innovations Institute, Weill Cornell Medicine, New York, New York 10065, United States
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14
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Falzone N, Ackerman NL, Rosales LDLF, Bernal MA, Liu X, Peeters SGJA, Soto MS, Corroyer-Dulmont A, Bernaudin M, Grimoin E, Touzani O, Sibson NR, Vallis KA. Dosimetric evaluation of radionuclides for VCAM-1-targeted radionuclide therapy of early brain metastases. Theranostics 2018; 8:292-303. [PMID: 29290808 PMCID: PMC5743475 DOI: 10.7150/thno.22217] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/02/2017] [Indexed: 11/13/2022] Open
Abstract
Brain metastases develop frequently in patients with breast cancer, and present a pressing therapeutic challenge. Expression of vascular cell adhesion molecule 1 (VCAM-1) is upregulated on brain endothelial cells during the early stages of metastasis and provides a target for the detection and treatment of early brain metastases. The aim of this study was to use a model of early brain metastasis to evaluate the efficacy of α-emitting radionuclides, 149Tb, 211At, 212Pb, 213Bi and 225Ac; β-emitting radionuclides, 90Y, 161Tb and 177Lu; and Auger electron (AE)-emitters 67Ga, 89Zr, 111In and 124I, for targeted radionuclide therapy (TRT). METHODS Histologic sections and two photon microscopy of mouse brain parenchyma were used to inform a cylindrical vessel geometry using the Geant4 general purpose Monte Carlo (MC) toolkit with the Geant4-DNA low energy physics models. Energy deposition was evaluated as a radial function and the resulting phase spaces were superimposed on a DNA model to estimate double-strand break (DSB) yields for representative β- and α-emitters, 177Lu and 212Pb. Relative biological effectiveness (RBE) values were determined by only evaluating DNA damage due to physical interactions. RESULTS 177Lu produced 2.69 ± 0.08 DSB per GbpGy, without significant variation from the lumen of the vessel to a radius of 100 µm. The DSB yield of 212Pb included two local maxima produced by the 6.1 MeV and 8.8 MeV α-emissions from decay products, 212Bi and 212Po, with yields of 7.64 ± 0.12 and 9.15 ± 0.24 per GbpGy, respectively. Given its higher DSB yield 212Pb may be more effective for short range targeting of early micrometastatic lesions than 177Lu. CONCLUSION MC simulation of a model of early brain metastases provides invaluable insight into the potential efficacy of α-, β- and AE-emitting radionuclides for TRT. 212Pb, which has the attributes of a theranostic radionuclide since it can be used for SPECT imaging, showed a favorable dose profile and RBE.
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Affiliation(s)
- Nadia Falzone
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Nicole L. Ackerman
- Department of Physics and Astronomy, Agnes Scott College, Decatur, GA, United States of America
| | | | - Mario A. Bernal
- Departamento de Física Aplicada, Instituto de Física "Gleb Wataghin", UNICAMP, Campinas, Brazil
| | - Xiaoxuan Liu
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Sarah GJA Peeters
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Manuel Sarmiento Soto
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Aurélien Corroyer-Dulmont
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, Caen, France
| | - Myriam Bernaudin
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, Caen, France
| | - Elisa Grimoin
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, Caen, France
| | - Omar Touzani
- Normandie Univ, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, Caen, France
| | - Nicola R. Sibson
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
| | - Katherine A. Vallis
- CR-UK/MRC Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Oxford, United Kingdom
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15
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Chen VCH, Hsieh YH, Chen LJ, Hsu TC, Tzang BS. Escitalopram oxalate induces apoptosis in U-87MG cells and autophagy in GBM8401 cells. J Cell Mol Med 2017; 22:1167-1178. [PMID: 29105282 PMCID: PMC5783874 DOI: 10.1111/jcmm.13372] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 08/10/2017] [Indexed: 12/18/2022] Open
Abstract
Glioblastoma multiforme (GBM) is recognized as a most aggressive brain cancer with the worst prognosis and survival time. Owing to the anatomic location of gliomas, surgically removing the tumour is very difficult and avoiding damage to vital brain regions during radiotherapy is impossible. Therefore, therapeutic strategies for malignant glioma must urgently be improved. Recent studies have demonstrated that selective serotonin reuptake inhibitors (SSRIs) have cytotoxic effect on certain cancers. Considering as a more superior SSRI, escitalopram oxalate exhibits favourable tolerability and causes generally mild and temporary adverse events. However, limited information is revealed about the influence of escitalopram oxalate on GBM. Therefore, an attempt was made herein to explore the effects of escitalopram oxalate on GBM. The experimental results revealed that escitalopram oxalate significantly inhibits the proliferation and invasive ability of U‐87MG cells and significantly reduced the expressions of cell cycle inhibitors such as Skp2, P57, P21 and P27. Notably, escitalopram oxalate also induced significant apoptotic cascades in U‐87MG cells and autophagy in GBM8401 cells. An animal study indicated that escitalopram oxalate inhibits the proliferation of xenografted glioblastoma in BALB/c nude mice. These findings implied that escitalopram oxalate may have potential in treatment of glioblastomas.
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Affiliation(s)
- Vincent Chin-Hung Chen
- Department of Psychiatry, Chang Gung University, Taoyuan, Taiwan.,Department of Psychiatry, Chiayi Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yi-Hsien Hsieh
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan.,Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan.,Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Li-Jeng Chen
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan
| | - Tsai-Ching Hsu
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan.,Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan.,Immunology Research Center, Chung Shan Medical University, Taichung, Taiwan
| | - Bor-Show Tzang
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan.,Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan.,Department of Biochemistry, School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Immunology Research Center, Chung Shan Medical University, Taichung, Taiwan
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16
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Castañeda-Gill JM, Ranjan AP, Vishwanatha JK. Development and Characterization of Methylene Blue Oleate Salt-Loaded Polymeric Nanoparticles and their Potential Application as a Treatment for Glioblastoma. ACTA ACUST UNITED AC 2017; 8. [PMID: 29034126 PMCID: PMC5636194 DOI: 10.4172/2157-7439.1000449] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glioblastoma (GBM) is an aggressive, grade IV brain tumor that develops from astrocytes located within the cerebrum, resulting in poor prognosis and survival rates following an accepted treatment regimen of surgery, radiation, and temozolomide. Thus, development of new therapeutics is necessary. During the last two decades, methylene blue (MB) has received increased attention as a potential neurotherapeutic due to its duality in brain cancers and neurodegenerative diseases. While MB is capable of easily permeating the blood-brain barrier, its therapeutic concentrations in GBM are known to induce off-target cytotoxicity and thus, another mode of drug delivery must be considered. To this end, encapsulation of formerly unusable compounds into nanoparticles (NPs) made from the biodegradable/biocompatible, FDA approved co-polymer poly (lactide-co-glycolide) (PLGA) has been more commonplace when developing novel therapeutics. In this study, we formulated and characterized Pluronic F68-coated PLGA NPs containing a sodium oleate conjugate of MB (MBOS) via solvent displacement. Conjugation of sodium oleate to MB was shown to reduce its release from PLGA NPs compared to unmodified MB, leading to potential improvements in drug accumulation and therapeutic effectiveness. Our drug-loaded NP preparations, which were ~170 nm in size and had drug loading values of ~2%, were shown to reduce cell viability and cell compartment-specific, as well as overall cell, functions equivalenty, if not more so, when compared to free drug in two GBM cell lines. Following bio-distribution analysis of free MBOS compared to its nano-encapsulated counterpart, drug-loaded NPs were shown to more effectively permeate the BBB, which could lead to improvements in therapeutic effectiveness upon further examination in a tumor-bearing mouse model. Based on these results, we believe that the further development and eventual utilization of this nanoformulation could lead to an effective GBM therapy that could extend patient survival rates.
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Affiliation(s)
- J M Castañeda-Gill
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - A P Ranjan
- Institute for Molecular Medicine and Institute for Cancer Research, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
| | - J K Vishwanatha
- Institute for Molecular Medicine and Institute for Cancer Research, University of North Texas Health Science Center, Fort Worth, TX 76107, USA
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17
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Ramachandran R, Junnuthula VR, Gowd GS, Ashokan A, Thomas J, Peethambaran R, Thomas A, Unni AKK, Panikar D, Nair SV, Koyakutty M. Theranostic 3-Dimensional nano brain-implant for prolonged and localized treatment of recurrent glioma. Sci Rep 2017; 7:43271. [PMID: 28262735 PMCID: PMC5338016 DOI: 10.1038/srep43271] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/19/2017] [Indexed: 01/12/2023] Open
Abstract
Localized and controlled delivery of chemotherapeutics directly in brain-tumor for prolonged periods may radically improve the prognosis of recurrent glioblastoma. Here, we report a unique method of nanofiber by fiber controlled delivery of anti-cancer drug, Temozolomide, in orthotopic brain-tumor for one month using flexible polymeric nano-implant. A library of drug loaded (20 wt%) electrospun nanofiber of PLGA-PLA-PCL blends with distinct in vivo brain-release kinetics (hours to months) were numerically selected and a single nano-implant was formed by co-electrospinning of nano-fiber such that different set of fibres releases the drug for a specific periods from days to months by fiber-by-fiber switching. Orthotopic rat glioma implanted wafers showed constant drug release (116.6 μg/day) with negligible leakage into the peripheral blood (<100 ng) rendering ~1000 fold differential drug dosage in tumor versus peripheral blood. Most importantly, implant with one month release profile resulted in long-term (>4 month) survival of 85.7% animals whereas 07 day releasing implant showed tumor recurrence in 54.6% animals, rendering a median survival of only 74 days. In effect, we show that highly controlled drug delivery is possible for prolonged periods in orthotopic brain-tumor using combinatorial nanofibre libraries of bulk-eroding polymers, thereby controlling glioma recurrence.
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Affiliation(s)
- Ranjith Ramachandran
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, 682041, Kerala, India
| | | | - G. Siddaramana Gowd
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, 682041, Kerala, India
| | - Anusha Ashokan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, 682041, Kerala, India
| | - John Thomas
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, 682041, Kerala, India
| | - Reshmi Peethambaran
- Central Lab Animal Facility, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, 682041, Kerala, India
| | - Anoop Thomas
- Department of Neurosurgery, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, 682041, Kerala, India
| | | | - Dilip Panikar
- Department of Neurosurgery, Amrita Institute of Medical Sciences & Research Centre, Amrita University, Kochi, 682041, Kerala, India
| | - Shantikumar V. Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, 682041, Kerala, India
| | - Manzoor Koyakutty
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, 682041, Kerala, India
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18
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Ngen EJ, Bar-Shir A, Jablonska A, Liu G, Song X, Ansari R, Bulte JWM, Janowski M, Pearl M, Walczak P, Gilad AA. Imaging the DNA Alkylator Melphalan by CEST MRI: An Advanced Approach to Theranostics. Mol Pharm 2016; 13:3043-53. [PMID: 27398883 DOI: 10.1021/acs.molpharmaceut.6b00130] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Brain tumors are among the most lethal types of tumors. Therapeutic response variability and failure in patients have been attributed to several factors, including inadequate drug delivery to tumors due to the blood-brain barrier (BBB). Consequently, drug delivery strategies are being developed for the local and targeted delivery of drugs to brain tumors. These drug delivery strategies could benefit from new approaches to monitor the delivery of drugs to tumors. Here, we evaluated the feasibility of imaging 4-[bis(2-chloroethyl)amino]-l-phenylalanine (melphalan), a clinically used DNA alkylating agent, using chemical exchange saturation transfer magnetic resonance imaging (CEST MRI), for theranostic applications. We evaluated the physicochemical parameters that affect melphalan's CEST contrast and demonstrated the feasibility of imaging the unmodified drug by saturating its exchangeable amine protons. Melphalan generated a CEST signal despite its reactivity in an aqueous milieu. The maximum CEST signal was observed at pH 6.2. This CEST contrast trend was then used to monitor therapeutic responses to melphalan in vitro. Upon cell death, the decrease in cellular pH from ∼7.4 to ∼6.4 caused an amplification of the melphalan CEST signal. This is contrary to what has been reported for other CEST contrast agents used for imaging cell death, where a decrease in the cellular pH following cell death results in a decrease in the CEST signal. Ultimately, this method could be used to noninvasively monitor melphalan delivery to brain tumors and also to validate therapeutic responses to melphalan clinically.
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Affiliation(s)
- Ethel J Ngen
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Cellular Imaging Section and Vascular Biology Program, Institute for Cellular Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States
| | - Amnon Bar-Shir
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Cellular Imaging Section and Vascular Biology Program, Institute for Cellular Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States
| | - Anna Jablonska
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Cellular Imaging Section and Vascular Biology Program, Institute for Cellular Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States
| | - Guanshu Liu
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Research Institute , Baltimore, Maryland 21205, United States
| | - Xiaolei Song
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Research Institute , Baltimore, Maryland 21205, United States
| | | | - Jeff W M Bulte
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Cellular Imaging Section and Vascular Biology Program, Institute for Cellular Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Research Institute , Baltimore, Maryland 21205, United States
| | - Miroslaw Janowski
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Cellular Imaging Section and Vascular Biology Program, Institute for Cellular Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,NeuroRepair Department, Mossakowski Medical Research Centre, PAS , 02106 Warsaw, Poland.,Department of Neurosurgery, Mossakowski Medical Research Centre, PAS , 02106 Warsaw, Poland
| | - Monica Pearl
- Division of Interventional Neuroradiology, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Department of Radiology, Children's National Medical Center , Washington, D.C. 20010, United States
| | - Piotr Walczak
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Cellular Imaging Section and Vascular Biology Program, Institute for Cellular Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Department of Radiology, Faculty of Medical Sciences, University of Warmia and Mazury , Olsztyn, Poland
| | - Assaf A Gilad
- Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,Cellular Imaging Section and Vascular Biology Program, Institute for Cellular Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States.,F. M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Research Institute , Baltimore, Maryland 21205, United States
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19
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Li M, Luo Z, Zhao Y. Hybrid Nanoparticles as Drug Carriers for Controlled Chemotherapy of Cancer. CHEM REC 2016; 16:1833-51. [PMID: 27258402 DOI: 10.1002/tcr.201600029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Indexed: 01/09/2023]
Abstract
Rapid developments in materials science and biological mechanisms have greatly boosted the research discoveries of new drug delivery systems. In the past few decades, hundreds of nanoparticle-based drug carriers have been reported almost on a daily basis, in which new materials, structures, and mechanisms are proposed and evaluated. Standing out among the drug carriers, the hybrid nanoparticle systems offer a great opportunity for the optimization and improvement of conventional chemotherapy. By combining several features of functional components, these hybrid nanoparticles have shown excellent promises of improved biosafety, biocompatibility, multifunctionality, biodegradability, and so forth. In this Personal Account, we highlight the recent research advances of some representative hybrid nanoparticles as drug delivery systems and discuss their design strategies and responsive mechanisms for controlled drug delivery.
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Affiliation(s)
- Menghuan Li
- College of Life Science, Chongqing University, Shapingba District Chongqing, 401331, P. R. China
| | - Zhong Luo
- College of Life Science, Chongqing University, Shapingba District Chongqing, 401331, P. R. China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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20
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Liu KH, Yang ST, Lin YK, Lin JW, Lee YH, Wang JY, Hu CJ, Lin EY, Chen SM, Then CK, Shen SC. Fluoxetine, an antidepressant, suppresses glioblastoma by evoking AMPAR-mediated calcium-dependent apoptosis. Oncotarget 2016; 6:5088-101. [PMID: 25671301 PMCID: PMC4467135 DOI: 10.18632/oncotarget.3243] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 12/26/2014] [Indexed: 12/24/2022] Open
Abstract
The efficacy of glioblastoma chemotherapy is not satisfactory; therefore, a new medication is expected to improve outcomes. As much evidence shows that antidepressants decrease cancer incidence and improve patients' quality of life, we therefore attempted to explore the potential for fluoxetine to be used to treat GBM and its possible underlying mechanism. The expression level of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) was determined using immunohistochemical staining and PCR analysis. The mechanism of fluoxetine-induced apoptosis of gliomas was elucidated. Computer modeling and a binding assay were conducted to investigate the interaction of fluoxetine with the AMPAR. The therapeutic effect of fluoxetine was evaluated using an animal model. We found that fluoxetine directly bound to AMPAR, thus inducing transmembrane Ca2+ influx. The rise in the intracellular calcium concentration ([Ca2+]i) causes mitochondrial Ca2+ overload, thereby triggering apoptosis. AMPARs are excessively expressed in glioma tissues, suggesting that fluoxetine specifically executes glioma cells. Our in vivo study revealed that fluoxetine suppressed the growth of glioblastomas in brains of Nu/Nu mice, an effect similar to that produced by temozolomide. Our preclinical studies suggest fluoxetine, a commonly used antidepressant, might be selectively toxic to gliomas and could provide a new approach for managing this disease.
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Affiliation(s)
- Kao-Hui Liu
- Taipei Medical University, College of Medicine, Graduate Institute of Medical Sciences, Taipei, Taiwan
| | - Shun-Tai Yang
- Taipei Medical University-Shuang Ho Hospital, Department of Neurosurgery, Taipei, Taiwan
| | - Yen-Kuang Lin
- Taipei Medical University, Biostatistics Center, Taipei, Taiwan
| | - Jia-Wei Lin
- Taipei Medical University-Shuang Ho Hospital, Department of Neurosurgery, Taipei, Taiwan
| | - Yi-Hsuan Lee
- National Yang-Ming University, Department and Institute of Physiology, Taipei, Taiwan
| | - Jia-Yi Wang
- Taipei Medical University, College of Medicine, Graduate Institute of Medical Sciences, Taipei, Taiwan.,Taipei Medical University, College of Medicine, School of Medicine, Department of Physiology, Taipei, Taiwan
| | - Chaur-Jong Hu
- Taipei Medical University-Shuang Ho Hospital, School of Medicine, Department of Neurology, Taipei, Taiwan
| | - En-Yuan Lin
- Taipei Medical University Hospital, Department of Neurosurgery, Taipei, Taiwan
| | - Shu-Mei Chen
- Taipei Medical University-Wan Fang Hospital, Department of Neurosurgery, Taipei, Taiwan
| | - Chee-Kin Then
- Taipei Medical University, College of Medicine, School of Medicine, Taipei, Taiwan
| | - Shing-Chuan Shen
- Taipei Medical University, College of Medicine, Graduate Institute of Medical Sciences, Taipei, Taiwan
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21
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Ceccherini E, Indovina P, Zamperini C, Dreassi E, Casini N, Cutaia O, Forte IM, Pentimalli F, Esposito L, Polito MS, Schenone S, Botta M, Giordano A. SRC family kinase inhibition through a new pyrazolo[3,4-d]pyrimidine derivative as a feasible approach for glioblastoma treatment. J Cell Biochem 2015; 116:856-63. [PMID: 25521525 DOI: 10.1002/jcb.25042] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 12/15/2014] [Indexed: 12/27/2022]
Abstract
Glioblastoma (GB) is the most common and aggressive primary tumor of the central nervous system. The current standard of care for GB consists of surgical resection, followed by radiotherapy combined with temozolomide chemotherapy. However, despite this intensive treatment, the prognosis remains extremely poor. Therefore, more effective therapies are urgently required. Recent studies indicate that SRC family kinases (SFKs) could represent promising molecular targets for GB therapy. Here, we challenged four GB cell lines with a new selective pyrazolo[3,4-d]pyrimidine derivative SFK inhibitor, called SI221. This compound exerted a significant cytotoxic effect on GB cells, without significantly affecting non-tumor cells (primary human skin fibroblasts), as evaluated by MTS assay. We also observed that SI221 was more effective than the well-known SFK inhibitor PP2 in GB cells. Notably, despite the high intrinsic resistance to apoptosis of GB cells, SI221 was able to induce this cell death process in all the GB cell lines, as observed through cytofluorimetric analysis and caspase-3 assay. SI221 also exerted a long-term inhibition of GB cell growth and was able to reduce GB cell migration, as shown by clonogenic assay and scratch test, respectively. Moreover, through in vitro pharmacokinetic assays, SI221 proved to have a high metabolic stability and a good potential to cross the blood brain barrier, which is an essential requirement for a drug intended to treat brain tumors. Therefore, despite the need of developing strategies to improve SI221 solubility, our results suggest a potential application of this selective SFK inhibitor in GB therapy.
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Affiliation(s)
- Elisa Ceccherini
- Department of Medicine, Surgery and Neuroscience, University of Siena and Istituto Toscano Tumori (ITT), Siena, Italy
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Vanan MI, Eisenstat DD. DIPG in Children - What Can We Learn from the Past? Front Oncol 2015; 5:237. [PMID: 26557503 PMCID: PMC4617108 DOI: 10.3389/fonc.2015.00237] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Accepted: 10/08/2015] [Indexed: 02/02/2023] Open
Abstract
Brainstem tumors represent 10–15% of pediatric central nervous system tumors and diffuse intrinsic pontine glioma (DIPG) is the most common brainstem tumor of childhood. DIPG is almost uniformly fatal and is the leading cause of brain tumor-related death in children. To date, radiation therapy (RT) is the only form of treatment that offers a transient benefit in DIPG. Chemotherapeutic strategies including multi-agent neoadjuvant chemotherapy, concurrent chemotherapy with RT, and adjuvant chemotherapy have not provided any survival advantage. To overcome the restrictive ability of the intact blood–brain barrier (BBB) in DIPG, several alternative drug delivery strategies have been proposed but have met with minimal success. Targeted therapies either alone or in combination with RT have also not improved survival. Five decades of unsuccessful therapies coupled with recent advances in the genetics and biology of DIPG have taught us several important lessons (1). DIPG is a heterogeneous group of tumors that are biologically distinct from other pediatric and adult high grade gliomas (HGG). Adapting chemotherapy and targeted therapies that are used in pediatric or adult HGG for the treatment of DIPG should be abandoned (2). Biopsy of DIPG is relatively safe and informative and should be considered in the context of multicenter clinical trials (3). DIPG probably represents a whole brain disease so regular neuraxis imaging is important at diagnosis and during therapy (4). BBB permeability is of major concern in DIPG and overcoming this barrier may ensure that drugs reach the tumor (5). Recent development of DIPG tumor models should help us accurately identify and validate therapeutic targets and small molecule inhibitors in the treatment of this deadly tumor.
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Affiliation(s)
- Magimairajan Issai Vanan
- Department of Pediatrics and Child Health, University of Manitoba , Winnipeg, MB , Canada ; Department of Biochemistry and Medical Genetics, University of Manitoba , Winnipeg, MB , Canada
| | - David D Eisenstat
- Department of Pediatrics, University of Alberta , Edmonton, AB , Canada ; Department of Medical Genetics, University of Alberta , Edmonton, AB , Canada ; Department of Oncology, University of Alberta , Edmonton, AB , Canada
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Song T, Li H, Tian Z, Xu C, Liu J, Guo Y. Disruption of NF-κB signaling by fluoxetine attenuates MGMT expression in glioma cells. Onco Targets Ther 2015; 8:2199-208. [PMID: 26346978 PMCID: PMC4550181 DOI: 10.2147/ott.s85948] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Resistance to temozolomide (TMZ) in glioma is modulated by the DNA repair protein O6-methylguanine-DNA methyltransferase (MGMT). This study aimed to examine the effects of fluoxetine (FLT) on MGMT expression in glioma cells and to investigate its underlying mechanisms. MATERIALS AND METHODS Expression of MGMT, GluR1, or IκB kinase β (IKKβ) was attenuated using short hairpin RNA-mediated gene knockdown. The 3-(4,5-dimethylthiazol -2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to evaluate the growth inhibition induced by FLT or TMZ. Terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling (TUNEL) was conducted to detect apoptotic cells. Western blotting was conducted to analyze the protein expression of MGMT, IKKβ, and NF-κB/p65 following FLT treatment. The murine subcutaneous xenograft model was used to evaluate the combinational effect of TMZ and FLT. RESULTS FLT markedly reduced MGMT expression in glioma cells, which was independent of GluR1 receptor function. Further, FLT disrupted NF-κB/p65 signaling in glioma cells and consequently attenuated NF-κB/p65 activity in regulating MGMT expression. Importantly, FLT sensitized MGMT-expressing glioma cells to TMZ, as FLT enhanced TMZ's ability to impair the in vitro tumorigenic potential and to induce apoptosis in glioma cells. Knockdown of MGMT or IKKβ expression abolished the synergistic effect of FLT with TMZ in glioma cells, which suggested that FLT might sensitize glioma cells to TMZ through down-regulation of MGMT expression. Consistently, TMZ combined with FLT markedly attenuated NF-κB/p65 activity, reduced MGMT expression, and suppressed in vivo tumor growth in the murine subcutaneous xenograft model. CONCLUSION Our findings demonstrated that FLT attenuated MGMT expression by disrupting NF-κB signaling and sensitized glioma cells to TMZ, which may warrant further investigation toward possible clinical application in MGMT-expressing glioma.
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Affiliation(s)
- Tao Song
- Department of Neurosurgery, Xiangya Hospital, Central South University, Jishou, People's Republic of China
| | - Hui Li
- Department of Immunology and Microbiology, Medical School of Jishou University, Jishou, People's Republic of China
| | - Zhiliang Tian
- Department of Neurosurgery, The Hospital of Xiangxi Autonomous Prefecture, Jishou, People's Republic of China
| | - Chaojiu Xu
- Department of Oncology, The Hospital of Xiangxi Autonomous Prefecture, Jishou, People's Republic of China
| | - Jingfang Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Jishou, People's Republic of China
| | - Yong Guo
- Department of Neurosurgery, Xiangya Hospital, Central South University, Jishou, People's Republic of China
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24
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Warren KE. Novel therapeutic delivery approaches in development for pediatric gliomas. CNS Oncol 2015; 2:427-35. [PMID: 24511389 DOI: 10.2217/cns.13.37] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pediatric gliomas are a heterogeneous group of diseases, ranging from relatively benign pilocytic astrocytomas with >90% 5-year survival, to glioblastomas and diffuse intrinsic pontine gliomas with <20% 5-year survival. Chemotherapy plays an important role in the management of these tumors, particularly in low-grade gliomas, but many high-grade tumors are resistant to chemotherapy. A major obstacle and contributor to this resistance is the blood–brain barrier, which protects the CNS by limiting entry of potential toxins, including chemotherapeutic agents. Several novel delivery approaches that circumvent the blood–brain barrier have been developed, including some currently in clinical trials. This review describes several of these novel approaches to improve delivery of chemotherapeutic agents to their site of action at the tumor, in attempts to improve their efficacy and the prognosis of children with this disease.
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Zhang F, Mastorakos P, Mishra MK, Mangraviti A, Hwang L, Zhou J, Hanes J, Brem H, Olivi A, Tyler B, Kannan RM. Uniform brain tumor distribution and tumor associated macrophage targeting of systemically administered dendrimers. Biomaterials 2015; 52:507-16. [PMID: 25818456 DOI: 10.1016/j.biomaterials.2015.02.053] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 02/11/2015] [Accepted: 02/13/2015] [Indexed: 02/07/2023]
Abstract
Effective blood-brain tumor barrier penetration and uniform solid tumor distribution can significantly enhance therapeutic delivery to brain tumors. Hydroxyl-functionalized, generation-4 poly(amidoamine) (PAMAM) dendrimers, with their small size, near-neutral surface charge, and the ability to selectively localize in cells associated with neuroinflammation may offer new opportunities to address these challenges. In this study we characterized the intracranial tumor biodistribution of systemically delivered PAMAM dendrimers in an intracranial rodent gliosarcoma model using fluorescence-based quantification methods and high resolution confocal microscopy. We observed selective and homogeneous distribution of dendrimer throughout the solid tumor (∼6 mm) and peritumoral area within fifteen minutes after systemic administration, with subsequent accumulation and retention in tumor associated microglia/macrophages (TAMs). Neuroinflammation and TAMs have important growth promoting and pro-invasive effects in brain tumors. The rapid clearance of systemically administered dendrimers from major organs promises minimal off-target adverse effects of conjugated drugs. Therefore, selective delivery of immunomodulatory molecules to TAM, using hydroxyl PAMAM dendrimers, may hold promise for therapy of glioblastoma.
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Affiliation(s)
- Fan Zhang
- Center for Nanomedicine at the Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Panagiotis Mastorakos
- Center for Nanomedicine at the Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Manoj K Mishra
- Center for Nanomedicine at the Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Antonella Mangraviti
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
| | - Lee Hwang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
| | - Jinyuan Zhou
- F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, MD 21205, United States
| | - Justin Hanes
- Center for Nanomedicine at the Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States; Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Henry Brem
- Center for Nanomedicine at the Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States; Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, United States
| | - Alessandro Olivi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
| | - Betty Tyler
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
| | - Rangaramanujam M Kannan
- Center for Nanomedicine at the Wilmer Eye Institute, Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, United States; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, United States.
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Bae MK, Yu WS, Byun GE, Lee CY, Lee JG, Kim DJ, Chung KY. Prognostic factors for cases with no extracranial metastasis in whom brain metastasis is detected after resection of non-small cell lung cancer. Lung Cancer 2015; 88:195-200. [PMID: 25770646 DOI: 10.1016/j.lungcan.2015.02.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 02/12/2015] [Accepted: 02/14/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVES This study aimed to determine prognostic factors associated with postrecurrence survival in cases with postoperative brain metastasis but with no extracranial metastasis in non-small cell lung cancer (NSCLC). MATERIAL AND METHODS Between 1992 and 2012, a total of 2832 patients underwent surgical resection for NSCLC. Among those, 86 patients had postoperative brain metastasis as the initial recurrence. Those patients were retrospectively reviewed. RESULTS The median follow-up time after the initial lung resection was 24.0 months (range, 2.0-126.0 months). The median overall survival after initial lung cancer resection was 25.0 months and the median overall postrecurrence survival was 11 months. An initial lesion of adenocarcinoma (hazard ratio, 0.548; 95% confidence interval, 0.318 to 0.946; p=0.031), non-pneumonectomy, and a disease-free interval longer than 10.0 months (hazard ratio, 0.565; 95% confidence interval, 0.321-0.995; p=0.048) from the initial lung resection to the diagnosis of brain metastasis positively related to a good postrecurrence survival. Solitary brain metastasis and a size of less than 3 cm for the largest brain lesion were also positive factors for postrecurrence survival. Systemic chemotherapy for brain metastasis (hazard ratio, 0.356; 95% confidence interval, 0.189-0.670; p=0.001) and local treatment of surgery and/or stereotactic radiosurgery (SRS) for brain lesions (hazard ratio, 0.321; 95% confidence interval, 0.138-0.747; p=0.008) were positive factors for better postrecurrence survival. CONCLUSION In patients with brain metastasis after resection for NSCLC with no extracranial metastasis, adenocarcinoma histologic type, longer disease-free interval, systemic chemotherapy for brain metastasis and local treatment of surgery and/or SRS for brain metastasis are independent positive prognostic factors for postrecurrence survival.
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Affiliation(s)
- Mi Kyung Bae
- Department of Thoracic and Cardiovascular Surgery, National Health Insurance Service Ilsan Hospital, 100 Ilsan-ro, Ilsan-donggu, Goyang-si, Gyeonggi-do 410-719, Republic of Korea
| | - Woo Sik Yu
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Go Eun Byun
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Chang Young Lee
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Jin Gu Lee
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Dae Joon Kim
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Kyung Young Chung
- Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
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Cockle JV, Picton S, Levesley J, Ilett E, Carcaboso AM, Short S, Steel LP, Melcher A, Lawler SE, Brüning-Richardson A. Cell migration in paediatric glioma; characterisation and potential therapeutic targeting. Br J Cancer 2015; 112:693-703. [PMID: 25628092 PMCID: PMC4333505 DOI: 10.1038/bjc.2015.16] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 12/12/2014] [Accepted: 12/17/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Paediatric high grade glioma (pHGG) and diffuse intrinsic pontine glioma (DIPG) are highly aggressive brain tumours. Their invasive phenotype contributes to their limited therapeutic response, and novel treatments that block brain tumour invasion are needed. METHODS Here, we examine the migratory characteristics and treatment effect of small molecule glycogen synthase kinase-3 inhibitors, lithium chloride (LiCl) and the indirubin derivative 6-bromoindirubin-oxime (BIO), previously shown to inhibit the migration of adult glioma cells, on two pHGG cell lines (SF188 and KNS42) and one patient-derived DIPG line (HSJD-DIPG-007) using 2D (transwell membrane, immunofluorescence, live cell imaging) and 3D (migration on nanofibre plates and spheroid invasion in collagen) assays. RESULTS All lines were migratory, but there were differences in morphology and migration rates. Both LiCl and BIO reduced migration and instigated cytoskeletal rearrangement of stress fibres and focal adhesions when viewed by immunofluorescence. In the presence of drugs, loss of polarity and differences in cellular movement were observed by live cell imaging. CONCLUSIONS Ours is the first study to demonstrate that it is possible to pharmacologically target migration of paediatric glioma in vitro using LiCl and BIO, and we conclude that these agents and their derivatives warrant further preclinical investigation as potential anti-migratory therapeutics for these devastating tumours.
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Affiliation(s)
- J V Cockle
- 1] Leeds Institute of Cancer Studies and Pathology, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK [2] Yorkshire Regional Centre for Paediatric Oncology and Haematology, Leeds General Infirmary, Great George Street, Leeds, LS1 3EX, UK
| | - S Picton
- Yorkshire Regional Centre for Paediatric Oncology and Haematology, Leeds General Infirmary, Great George Street, Leeds, LS1 3EX, UK
| | - J Levesley
- Leeds Institute of Cancer Studies and Pathology, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK
| | - E Ilett
- Leeds Institute of Cancer Studies and Pathology, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK
| | - A M Carcaboso
- Preclinical Therapeutics and Drug Delivery Research Program, Department of Oncology, Hospital Sant Joan de Déu Barcelona, Preclinical Therapeutics and Drug Delivery Research Program Santa Rosa, 39-57, 4th floor 08950 Esplugues de Llobregat, Barcelona, Spain
| | - S Short
- Leeds Institute of Cancer Studies and Pathology, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK
| | - L P Steel
- Leeds Institute of Cancer Studies and Pathology, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK
| | - A Melcher
- Leeds Institute of Cancer Studies and Pathology, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK
| | - S E Lawler
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, 4 Blackfan Circle, HIM 930A, Boston, MA, 02115, USA
| | - A Brüning-Richardson
- Leeds Institute of Cancer Studies and Pathology, University of Leeds, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, LS9 7TF, UK
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Arslan C, Dizdar O, Altundag K. Chemotherapy and biological treatment options in breast cancer patients with brain metastasis: an update. Expert Opin Pharmacother 2014; 15:1643-58. [PMID: 25032884 DOI: 10.1517/14656566.2014.929664] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
INTRODUCTION Breast cancer (BC) is the second most common cause of CNS metastasis. Ten to 20% of all, and 38% of human epidermal growth factor-2(+), metastatic BC patients experience brain metastasis (BM). Prolonged survival with better control of systemic disease and limited penetration of drugs to CNS increased the probability of CNS metastasis as a sanctuary site of relapse. Treatment of CNS disease has become an important component of overall disease control and quality of life. AREAS COVERED Current standard therapy for BM is whole-brain radiotherapy, surgery, stereotactic body radiation therapy for selected cases, corticosteroids and systemic chemotherapy. Little progress has been made in chemotherapy for the treatment of BM in patients with BC. Nevertheless, new treatment choices have emerged. In this review, we aimed to update current and future treatment options in systemic treatment for BM of BC. EXPERT OPINION Cornerstone local treatment options for BM of BC are radiotherapy and surgery in selected cases. Efficacy of cytotoxic chemotherapeutics is limited. Among targeted therapies, lapatinib has activity in systemic treatment of BM particularly when used in combination with capecitabine. Novel agents are currently investigated.
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Affiliation(s)
- Cagatay Arslan
- Izmir University Medical Park Hospital, Department of Medical Oncology , Izmir , Turkey
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Sarkar G, Curran GL, Sarkaria JN, Lowe VJ, Jenkins RB. Peptide carrier-mediated non-covalent delivery of unmodified cisplatin, methotrexate and other agents via intravenous route to the brain. PLoS One 2014; 9:e97655. [PMID: 24847943 PMCID: PMC4029735 DOI: 10.1371/journal.pone.0097655] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/22/2014] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Rapid pre-clinical evaluation of chemotherapeutic agents against brain cancers and other neurological disorders remains largely unattained due to the presence of the blood-brain barrier (BBB), which limits transport of most therapeutic compounds to the brain. A synthetic peptide carrier, K16ApoE, was previously developed that enabled transport of target proteins to the brain by mimicking a ligand-receptor system. The peptide carrier was found to generate transient BBB permeability, which was utilized for non-covalent delivery of cisplatin, methotrexate and other compounds to the brain. APPROACH Brain delivery of the chemotherapeutics and other agents was achieved either by injecting the carrier peptide and the drugs separately or as a mixture, to the femoral vein. A modification of the method comprised injection of K16ApoE pre-mixed with cetuximab, followed by injection of a 'small-molecule' drug. PRINCIPAL FINDINGS Seven-of-seven different small molecules were successfully delivered to the brain via K16ApoE. Depending on the method, brain uptake with K16ApoE was 0.72-1.1% for cisplatin and 0.58-0.92% for methotrexate (34-50-fold and 54-92 fold greater for cisplatin and methotrexate, respectively, with K16ApoE than without). Visually intense brain-uptake of Evans Blue, Light Green SF and Crocein scarlet was also achieved. Direct intracranial injection of EB show locally restricted distribution of the dye in the brain, whereas K16ApoE-mediated intravenous injection of EB resulted in the distribution of the dye throughout the brain. Experiments with insulin suggest that ligand-receptor signaling intrinsic to the BBB provides a natural means for passive transport of some molecules across the BBB. SIGNIFICANCE The results suggest that the carrier peptide can non-covalently transport various chemotherapeutic agents to the brain. Thus, the method offers an avenue for pre-clinical evaluation of various small and large therapeutic molecules against brain tumors and other neurological disorders.
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Affiliation(s)
- Gobinda Sarkar
- Department of Experimental Pathology, Mayo Clinic and Foundation, Rochester, Minnesota, United States of America
- * E-mail: (GS); (RJ)
| | - Geoffry L. Curran
- Department of Neurology, Mayo Clinic and Foundation, Rochester, Minnesota, United States of America
| | - Jann N. Sarkaria
- Department of Radiation Oncology, Mayo Clinic and Foundation, Rochester, Minnesota, United States of America
| | - Val J. Lowe
- Department of Nuclear Medicine, Mayo Clinic and Foundation, Rochester, Minnesota, United States of America
| | - Robert B. Jenkins
- Department of Experimental Pathology, Mayo Clinic and Foundation, Rochester, Minnesota, United States of America
- * E-mail: (GS); (RJ)
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Glutamate as chemotactic fuel for diffuse glioma cells: are they glutamate suckers? Biochim Biophys Acta Rev Cancer 2014; 1846:66-74. [PMID: 24747768 DOI: 10.1016/j.bbcan.2014.04.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/09/2014] [Accepted: 04/11/2014] [Indexed: 11/21/2022]
Abstract
Diffuse gliomas comprise a group of primary brain tumors that originate from glial (precursor) cells and present as a variety of malignancy grades which have in common that they grow by diffuse infiltration. This phenotype complicates treatment enormously as it precludes curative surgery and radiotherapy. Furthermore, diffusely infiltrating glioma cells often hide behind a functional blood-brain barrier, hampering delivery of systemically administered therapeutic and diagnostic compounds to the tumor cells. The present review addresses the biological mechanisms that underlie the diffuse infiltrative phenotype, knowledge of which may improve treatment strategies for this disastrous tumor type. The invasive phenotype is specific for glioma: most other brain tumor types, both primary and metastatic, grow as delineated lesions. Differences between the genetic make-up of glioma and that of other tumor types may therefore help to unravel molecular pathways, involved in diffuse infiltrative growth. One such difference concerns mutations in the NADP(+)-dependent isocitrate dehydrogenase (IDH1 and IDH2) genes, which occur in >80% of cases of low grade glioma and secondary glioblastoma. In this review we present a novel hypothesis which links IDH1 and IDH2 mutations to glutamate metabolism, possibly explaining the specific biological behavior of diffuse glioma.
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31
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Weber TG, Osl F, Renner A, Pöschinger T, Galbán S, Rehemtulla A, Scheuer W. Apoptosis imaging for monitoring DR5 antibody accumulation and pharmacodynamics in brain tumors noninvasively. Cancer Res 2014; 74:1913-23. [PMID: 24509903 PMCID: PMC4269941 DOI: 10.1158/0008-5472.can-13-3001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
High-grade gliomas often possess an impaired blood-brain barrier (BBB), which allows delivery of large molecules to brain tumors. However, achieving optimal drug concentrations in brain tumors remains a significant hurdle for treating patients successfully. Thus, detailed investigations of drug activities in gliomas are needed. To investigate BBB penetration, pharmacodynamics, and tumor retention kinetics of an agonistic DR5 antibody in a brain tumor xenograft model, we utilized a noninvasive imaging method for longitudinal monitoring of apoptosis induction. Brain tumors were induced by intracranial (i.c.) implantation of a luciferase-expressing tumor cell line as a reporter. To quantify accumulation of anti-DR5 in brain tumors, we generated a dosage-response curve for apoptosis induction after i.c. delivery of fluorescence-labeled anti-DR5 at different dosages. Assuming 100% drug delivery after i.c. application, the amount of accumulated antibody after i.v. application was calculated relative to its apoptosis induction. We found that up to 0.20% to 0.97% of antibody delivered i.v. reached the brain tumor, but that apoptosis induction declined quickly within 24 hours. These results were confirmed by three-dimensional fluorescence microscopy of antibody accumulation in explanted brains. Nonetheless, significant antitumor efficacy was documented after anti-DR5 delivery. We further demonstrated that antibody penetration was facilitated by an impaired BBB in brain tumors. These imaging methods enable the quantification of antibody accumulation and pharmacodynamics in brain tumors, offering a holistic approach for assessment of central nervous system-targeting drugs.
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Affiliation(s)
- Thomas G Weber
- Authors' Affiliations: Discovery Oncology, Pharmaceutical Research and Early Development (pRED), Roche Diagnostics GmbH, Penzberg, Germany; and Center for Molecular Imaging, Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
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