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Corrales E, Levit-Zerdoun E, Metzger P, Mertes R, Lehmann A, Münch J, Lemke S, Kowar S, Boerries M. PI3K/AKT signaling allows for MAPK/ERK pathway independency mediating dedifferentiation-driven treatment resistance in melanoma. Cell Commun Signal 2022; 20:187. [PMID: 36434616 PMCID: PMC9700886 DOI: 10.1186/s12964-022-00989-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/08/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Current therapeutic management of advanced melanoma patients largely depends on their BRAF mutation status. However, the vast heterogeneity of the tumors hampers the success of therapies targeting the MAPK/ERK pathway alone. Dissecting this heterogeneity will contribute to identifying key players in the oncogenic progression to tailor more effective therapies. METHODS We performed a comprehensive molecular and phenotypic characterization of a panel of patient-derived BRAFV600E-positive melanoma cell lines. Transcriptional profiling was used to identify groups of coregulated genes whose expression relates to an increased migratory potential and a higher resistance. RESULTS A decrease in sensitivity to MAPK/ERK pathway inhibition with vemurafenib or trametinib corresponded with an increasing quiescence and migratory properties of the cells. This was accompanied by the loss of transcriptional signatures of melanocytic differentiation, and the gain of stem cell features that conferred highly-resistant/mesenchymal-like cells with increased xenobiotic efflux capacity. Nevertheless, targeting of the implicated ABC transporters did not improve the response to vemurafenib, indicating that incomplete BRAF inhibition due to reduced drug uptake is not a main driver of resistance. Rather, indifference to MAPK/ERK pathway inhibition arose from the activation of compensatory signaling cascades. The PI3K/AKT pathway in particular showed a higher activity in mesenchymal-like cells, conferring a lower dependency on MAPK/ERK signaling and supporting stem-like properties that could be reverted by dual PI3K/mTOR inhibition with dactolisib. CONCLUSIONS In case of MAPK/ERK independency, therapeutic focus may be shifted to the PI3K/AKT pathway to overcome late-stage resistance in melanoma tumors that have acquired a mesenchymal phenotype. Video Abstract.
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Affiliation(s)
- Eyleen Corrales
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany ,grid.5963.9Faculty of Medicine, Medical Center-University of Freiburg, Institute of Medical Bioinformatics and Systems Medicine (IBSM), University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany ,grid.5963.9Faculty of Biology, University of Freiburg, Schänzlestr. 1, 79104 Freiburg, Germany
| | - Ella Levit-Zerdoun
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany ,grid.5963.9Faculty of Medicine, Medical Center-University of Freiburg, Institute of Medical Bioinformatics and Systems Medicine (IBSM), University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Consortium (DKTK), Freiburg, Germany
| | - Patrick Metzger
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany ,grid.5963.9Faculty of Medicine, Medical Center-University of Freiburg, Institute of Medical Bioinformatics and Systems Medicine (IBSM), University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Ralf Mertes
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany ,grid.5963.9Faculty of Medicine, Medical Center-University of Freiburg, Institute of Medical Bioinformatics and Systems Medicine (IBSM), University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Ariane Lehmann
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany ,grid.5963.9Faculty of Medicine, Medical Center-University of Freiburg, Institute of Medical Bioinformatics and Systems Medicine (IBSM), University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Julia Münch
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany
| | - Steffen Lemke
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany
| | - Silke Kowar
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany ,grid.5963.9Faculty of Medicine, Medical Center-University of Freiburg, Institute of Medical Bioinformatics and Systems Medicine (IBSM), University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany
| | - Melanie Boerries
- grid.5963.9Institute of Molecular Medicine and Cell Research (IMMZ), University of Freiburg, Stefan-Meier-Str. 17, 79104 Freiburg, Germany ,grid.5963.9Faculty of Medicine, Medical Center-University of Freiburg, Institute of Medical Bioinformatics and Systems Medicine (IBSM), University of Freiburg, Breisacherstr. 153, 79110 Freiburg, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany ,grid.7497.d0000 0004 0492 0584German Cancer Consortium (DKTK), Freiburg, Germany
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The Potential of Antibody Technology and Silver Nanoparticles for Enhancing Photodynamic Therapy for Melanoma. Biomedicines 2022; 10:biomedicines10092158. [PMID: 36140259 PMCID: PMC9495799 DOI: 10.3390/biomedicines10092158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/25/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Melanoma is highly aggressive and is known to be efficient at resisting drug-induced apoptotic signals. Resection is currently the gold standard for melanoma management, but it only offers local control of the early stage of the disease. Metastatic melanoma is prone to recurrence, and has a poor prognosis and treatment response. Thus, the need for advanced theranostic alternatives is evident. Photodynamic therapy has been increasingly studied for melanoma treatment; however, it relies on passive drug accumulation, leading to off-target effects. Nanoparticles enhance drug biodistribution, uptake and intra-tumoural concentration and can be functionalised with monoclonal antibodies that offer selective biorecognition. Antibody–drug conjugates reduce passive drug accumulation and off-target effects. Nonetheless, one limitation of monoclonal antibodies and antibody–drug conjugates is their lack of versatility, given cancer’s heterogeneity. Monoclonal antibodies suffer several additional limitations that make recombinant antibody fragments more desirable. SNAP-tag is a modified version of the human DNA-repair enzyme, O6-alkylguanine-DNA alkyltransferase. It reacts in an autocatalytic and covalent manner with benzylguanine-modified substrates, providing a simple protein labelling system. SNAP-tag can be genetically fused with antibody fragments, creating fusion proteins that can be easily labelled with benzylguanine-modified payloads for site-directed delivery. This review aims to highlight the benefits and limitations of the abovementioned approaches and to outline how their combination could enhance photodynamic therapy for melanoma.
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Pietrobono S, De Paolo R, Mangiameli D, Marranci A, Battisti I, Franchin C, Arrigoni G, Melisi D, Poliseno L, Stecca B. p38 MAPK-dependent phosphorylation of transcription factor SOX2 promotes an adaptive response to BRAF inhibitors in melanoma cells. J Biol Chem 2022; 298:102353. [PMID: 35944584 PMCID: PMC9463537 DOI: 10.1016/j.jbc.2022.102353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 07/21/2022] [Accepted: 07/27/2022] [Indexed: 10/26/2022] Open
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Antibody-Based Immunotherapy: Alternative Approaches for the Treatment of Metastatic Melanoma. Biomedicines 2020; 8:biomedicines8090327. [PMID: 32899183 PMCID: PMC7555584 DOI: 10.3390/biomedicines8090327] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 12/13/2022] Open
Abstract
Melanoma is the least common form of skin cancer and is associated with the highest mortality. Where melanoma is mostly unresponsive to conventional therapies (e.g., chemotherapy), BRAF inhibitor treatment has shown improved therapeutic outcomes. Photodynamic therapy (PDT) relies on a light-activated compound to produce death-inducing amounts of reactive oxygen species (ROS). Their capacity to selectively accumulate in tumor cells has been confirmed in melanoma treatment with some encouraging results. However, this treatment approach has not reached clinical fruition for melanoma due to major limitations associated with the development of resistance and subsequent side effects. These adverse effects might be bypassed by immunotherapy in the form of antibody–drug conjugates (ADCs) relying on the ability of monoclonal antibodies (mAbs) to target specific tumor-associated antigens (TAAs) and to be used as carriers to specifically deliver cytotoxic warheads into corresponding tumor cells. Of late, the continued refinement of ADC therapeutic efficacy has given rise to photoimmunotherapy (PIT) (a light-sensitive compound conjugated to mAbs), which by virtue of requiring light activation only exerts its toxic effect on light-irradiated cells. As such, this review aims to highlight the potential clinical benefits of various armed antibody-based immunotherapies, including PDT, as alternative approaches for the treatment of metastatic melanoma.
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Wiese M, Stefan SM. The A‐B‐C of small‐molecule ABC transport protein modulators: From inhibition to activation—a case study of multidrug resistance‐associated protein 1 (ABCC1). Med Res Rev 2019; 39:2031-2081. [DOI: 10.1002/med.21573] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 02/26/2019] [Accepted: 03/05/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Michael Wiese
- Pharmaceutical Institute, Rheinische Friedrich‐Wilhelms‐University of Bonn Bonn Germany
| | - Sven Marcel Stefan
- Pharmaceutical Institute, Rheinische Friedrich‐Wilhelms‐University of Bonn Bonn Germany
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Stefan SM, Wiese M. Small-molecule inhibitors of multidrug resistance-associated protein 1 and related processes: A historic approach and recent advances. Med Res Rev 2018; 39:176-264. [DOI: 10.1002/med.21510] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/05/2018] [Accepted: 04/28/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Sven Marcel Stefan
- Pharmaceutical Institute; Rheinische Friedrich-Wilhelms-University; Bonn Germany
| | - Michael Wiese
- Pharmaceutical Institute; Rheinische Friedrich-Wilhelms-University; Bonn Germany
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Oliveira ÉAD, Lima DSD, Cardozo LE, Souza GFD, de Souza N, Alves-Fernandes DK, Faião-Flores F, Quincoces JAP, Barros SBDM, Nakaya HI, Monteiro G, Maria-Engler SS. Toxicogenomic and bioinformatics platforms to identify key molecular mechanisms of a curcumin-analogue DM-1 toxicity in melanoma cells. Pharmacol Res 2017; 125:178-187. [PMID: 28882690 DOI: 10.1016/j.phrs.2017.08.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/31/2017] [Accepted: 08/30/2017] [Indexed: 12/17/2022]
Abstract
Melanoma is a highly invasive and metastatic cancer with high mortality rates and chemoresistance. Around 50% of melanomas are driven by activating mutations in BRAF that has led to the development of potent anti-BRAF inhibitors. However resistance to anti-BRAF therapy usually develops within a few months and consequently there is a need to identify alternative therapies that will bypass BRAF inhibitor resistance. The curcumin analogue DM-1 (sodium 4-[5-(4-hydroxy-3-methoxy-phenyl)-3-oxo-penta-1,4-dienyl]-2-methoxy-phenolate) has substantial anti-tumor activity in melanoma, but its mechanism of action remains unclear. Here we use a synthetic lethal genetic screen in Saccharomyces cerevisiae to identify 211 genes implicated in sensitivity to DM-1 toxicity. From these 211 genes, 74 had close human orthologues implicated in oxidative phosphorylation, insulin signaling and iron and RNA metabolism. Further analysis identified 7 target genes (ADK, ATP6V0B, PEMT, TOP1, ZFP36, ZFP36L1, ZFP36L2) with differential expression during melanoma progression implicated in regulation of tumor progression, cell differentiation, and epithelial-mesenchymal transition. Of these TOP1 and ADK were regulated by DM-1 in treatment-naïve and vemurafenib-resistant melanoma cells respectively. These data reveal that the anticancer effect of curcumin analogues is likely to be mediated via multiple targets and identify several genes that represent candidates for combinatorial targeting in melanoma.
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Affiliation(s)
- Érica Aparecida de Oliveira
- Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | - Diogenes Saulo de Lima
- Computational Systems Biology Laboratory, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | - Lucas Esteves Cardozo
- Computational Systems Biology Laboratory, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | | | - Nayane de Souza
- Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | - Debora Kristina Alves-Fernandes
- Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | - Fernanda Faião-Flores
- Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | | | - Silvia Berlanga de Moraes Barros
- Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | - Helder I Nakaya
- Computational Systems Biology Laboratory, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | - Gisele Monteiro
- Biochemical Pharmaceutical Technology Department, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil
| | - Silvya Stuchi Maria-Engler
- Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of Sao Paulo, FCF/USP, Sao Paulo, Brazil.
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Martin S, Dudek-Peric AM, Garg AD, Roose H, Demirsoy S, Van Eygen S, Mertens F, Vangheluwe P, Vankelecom H, Agostinis P. An autophagy-driven pathway of ATP secretion supports the aggressive phenotype of BRAF V600E inhibitor-resistant metastatic melanoma cells. Autophagy 2017; 13:1512-1527. [PMID: 28722539 DOI: 10.1080/15548627.2017.1332550] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The ingrained capacity of melanoma cells to rapidly evolve toward an aggressive phenotype is manifested by their increased ability to develop drug-resistance, evident in the case of vemurafenib, a therapeutic-agent targeting BRAFV600E. Previous studies indicated a tight correlation between heightened melanoma-associated macroautophagy/autophagy and acquired Vemurafenib resistance. However, how this vesicular trafficking pathway supports Vemurafenib resistance remains unclear. Here, using isogenic human and murine melanoma cell lines of Vemurafenib-resistant and patient-derived melanoma cells with primary resistance to the BRAFV600E inhibitor, we found that the enhanced migration and invasion of the resistant melanoma cells correlated with an enhanced autophagic capacity and autophagosome-mediated secretion of ATP. Extracellular ATP (eATP) was instrumental for the invasive phenotype and the expansion of a subset of Vemurafenib-resistant melanoma cells. Compromising the heightened autophagy in these BRAFV600E inhibitor-resistant melanoma cells through the knockdown of different autophagy genes (ATG5, ATG7, ULK1), reduced their invasive and eATP-secreting capacity. Furthermore, eATP promoted the aggressive nature of the BRAFV600E inhibitor-resistant melanoma cells by signaling through the purinergic receptor P2RX7. This autophagy-propelled eATP-dependent autocrine-paracrine pathway supported the maintenance and expansion of a drug-resistant melanoma phenotype. In conclusion, we have identified an autophagy-driven response that relies on the secretion of ATP to drive P2RX7-based migration and expansion of the Vemurafenib-resistant phenotype. This emphasizes the potential of targeting autophagy in the treatment and management of metastatic melanoma.
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Affiliation(s)
- Shaun Martin
- a Laboratory for Cell Death Research and Therapy, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg , Leuven , Belgium.,b Laboratory of Cellular Transport Systems, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg, Leuven , Belgium
| | - Aleksandra M Dudek-Peric
- a Laboratory for Cell Death Research and Therapy, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg , Leuven , Belgium
| | - Abhishek D Garg
- a Laboratory for Cell Death Research and Therapy, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg , Leuven , Belgium
| | - Heleen Roose
- c Department of Development and Regeneration, Cluster Stem Cell Biology and Embryology , University of Leuven (KU Leuven) , Campus Gasthuisberg, Leuven , Belgium
| | - Seyma Demirsoy
- a Laboratory for Cell Death Research and Therapy, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg , Leuven , Belgium
| | - Sofie Van Eygen
- a Laboratory for Cell Death Research and Therapy, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg , Leuven , Belgium
| | - Freya Mertens
- c Department of Development and Regeneration, Cluster Stem Cell Biology and Embryology , University of Leuven (KU Leuven) , Campus Gasthuisberg, Leuven , Belgium
| | - Peter Vangheluwe
- b Laboratory of Cellular Transport Systems, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg, Leuven , Belgium
| | - Hugo Vankelecom
- c Department of Development and Regeneration, Cluster Stem Cell Biology and Embryology , University of Leuven (KU Leuven) , Campus Gasthuisberg, Leuven , Belgium
| | - Patrizia Agostinis
- a Laboratory for Cell Death Research and Therapy, Department of Cellular and Molecular Medicine , University of Leuven (KU Leuven) , Campus Gasthuisberg , Leuven , Belgium
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Growth Hormone Receptor Knockdown Sensitizes Human Melanoma Cells to Chemotherapy by Attenuating Expression of ABC Drug Efflux Pumps. Discov Oncol 2017; 8:143-156. [PMID: 28293855 DOI: 10.1007/s12672-017-0292-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Accepted: 03/02/2017] [Indexed: 12/16/2022] Open
Abstract
Melanoma remains one of the most therapy-resistant forms of human cancer despite recent introductions of highly efficacious targeted therapies. The intrinsic therapy resistance of human melanoma is largely due to abundant expression of a repertoire of xenobiotic efflux pumps of the ATP-binding cassette (ABC) transporter family. Here, we report that GH action is a key mediator of chemotherapeutic resistance in human melanoma cells. We investigated multiple ABC efflux pumps (ABCB1, ABCB5, ABCB8, ABCC1, ABCC2, ABCG1, and ABCG2) reportedly associated with melanoma drug resistance in different human melanoma cells and tested the efficacy of five different anti-cancer compounds (cisplatin, doxorubicin, oridonin, paclitaxel, vemurafenib) with decreased GH action. We found that GH treatment of human melanoma cells upregulates expression of multiple ABC transporters and increases the EC50 of melanoma drug vemurafenib. Also, vemurafenib-resistant melanoma cells had upregulated levels of GH receptor (GHR) expression as well as ABC efflux pumps. GHR knockdown (KD) using siRNA in human melanoma cells treated with sub-EC50 doses of anti-tumor compounds resulted in significantly increased drug retention, decreased cell proliferation and increased drug efficacy, compared to mock-transfected controls. Our set of findings identify an unknown mechanism of GH regulation in mediating melanoma drug resistance and validates GHR as a unique therapeutic target for sensitizing highly therapy-resistant human melanoma cells to lower doses of anti-cancer drugs.
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Piktel E, Niemirowicz K, Wątek M, Wollny T, Deptuła P, Bucki R. Recent insights in nanotechnology-based drugs and formulations designed for effective anti-cancer therapy. J Nanobiotechnology 2016; 14:39. [PMID: 27229857 PMCID: PMC4881065 DOI: 10.1186/s12951-016-0193-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 05/17/2016] [Indexed: 12/18/2022] Open
Abstract
The rapid development of nanotechnology provides alternative approaches to overcome several limitations of conventional anti-cancer therapy. Drug targeting using functionalized nanoparticles to advance their transport to the dedicated site, became a new standard in novel anti-cancer methods. In effect, the employment of nanoparticles during design of antineoplastic drugs helps to improve pharmacokinetic properties, with subsequent development of high specific, non-toxic and biocompatible anti-cancer agents. However, the physicochemical and biological diversity of nanomaterials and a broad spectrum of unique features influencing their biological action requires continuous research to assess their activity. Among numerous nanosystems designed to eradicate cancer cells, only a limited number of them entered the clinical trials. It is anticipated that progress in development of nanotechnology-based anti-cancer materials will provide modern, individualized anti-cancer therapies assuring decrease in morbidity and mortality from cancer diseases. In this review we discussed the implication of nanomaterials in design of new drugs for effective antineoplastic therapy and describe a variety of mechanisms and challenges for selective tumor targeting. We emphasized the recent advantages in the field of nanotechnology-based strategies to fight cancer and discussed their part in effective anti-cancer therapy and successful drug delivery.
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Affiliation(s)
- Ewelina Piktel
- Department of Microbiological and Nanobiomedical Engineering, Medical University of Bialystok, Mickiewicza 2c, 15-222, Bialystok, Poland
| | - Katarzyna Niemirowicz
- Department of Microbiological and Nanobiomedical Engineering, Medical University of Bialystok, Mickiewicza 2c, 15-222, Bialystok, Poland
| | - Marzena Wątek
- Holy Cross Oncology Center of Kielce, Artwińskiego 3, 25-317, Kielce, Poland
| | - Tomasz Wollny
- Holy Cross Oncology Center of Kielce, Artwińskiego 3, 25-317, Kielce, Poland
| | - Piotr Deptuła
- Department of Microbiological and Nanobiomedical Engineering, Medical University of Bialystok, Mickiewicza 2c, 15-222, Bialystok, Poland
| | - Robert Bucki
- Department of Microbiological and Nanobiomedical Engineering, Medical University of Bialystok, Mickiewicza 2c, 15-222, Bialystok, Poland. .,Department of Physiology, Pathophysiology and Immunology of Infections, The Faculty of Health Sciences of the Jan Kochanowski University in Kielce, Kielce, Al. IX Wieków Kielc 19, 25-317, Kielce, Poland.
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BRAF inhibitors: the current and the future. Curr Opin Pharmacol 2015; 23:68-73. [PMID: 26072431 DOI: 10.1016/j.coph.2015.05.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 05/22/2015] [Accepted: 05/26/2015] [Indexed: 01/07/2023]
Abstract
The introduction of BRAF inhibitors (BRAFi), vemurafenib and dabrafenib, revolutionized BRAFV600-mutated metastatic melanoma treatment with improved response rate and overall survival compared to standard chemotherapy. However, the mechanism related cutaneous toxicity remains a concern. In addition, intrinsic and acquired resistance remain the key challenges in BRAFi therapy. Extensive efforts to elucidate the mechanisms have led to an improved understanding of disease biology and resulted in exploration of multiple new therapeutic options. While the future looks bright with multiple new therapeutic strategies in exploration and possible new generations of BRAFi, there are questions remaining to be answered to enable more efficient use of BRAFi in cancer therapy.
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