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Patil KS, Hajare AA, Manjappa AS, More HN, Disouza JI. Design, Development, In Silico, and In Vitro Characterization of Camptothecin-Loaded Mixed Micelles: In Vitro Testing of Verapamil and Ranolazine for Repurposing as Coadjuvant Therapy in Cancer. J Pharm Innov 2022. [DOI: 10.1007/s12247-022-09688-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Deng S, Leong HC, Datta A, Gopal V, Kumar AP, Yap CT. PI3K/AKT Signaling Tips the Balance of Cytoskeletal Forces for Cancer Progression. Cancers (Basel) 2022; 14:1652. [PMID: 35406424 PMCID: PMC8997157 DOI: 10.3390/cancers14071652] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/13/2022] [Accepted: 03/21/2022] [Indexed: 02/01/2023] Open
Abstract
The PI3K/AKT signaling pathway plays essential roles in multiple cellular processes, which include cell growth, survival, metabolism, and motility. In response to internal and external stimuli, the PI3K/AKT signaling pathway co-opts other signaling pathways, cellular components, and cytoskeletal proteins to reshape individual cells. The cytoskeletal network comprises three main components, which are namely the microfilaments, microtubules, and intermediate filaments. Collectively, they are essential for many fundamental structures and cellular processes. In cancer, aberrant activation of the PI3K/AKT signaling cascade and alteration of cytoskeletal structures have been observed to be highly prevalent, and eventually contribute to many cancer hallmarks. Due to their critical roles in tumor progression, pharmacological agents targeting PI3K/AKT, along with cytoskeletal components, have been developed for better intervention strategies against cancer. In our review, we first discuss existing evidence in-depth and then build on recent advances to propose new directions for therapeutic intervention.
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Affiliation(s)
- Shuo Deng
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore; (S.D.); (V.G.)
- NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore;
| | - Hin Chong Leong
- NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore;
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore;
- Departments of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
| | - Arpita Datta
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore;
| | - Vennila Gopal
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore; (S.D.); (V.G.)
| | - Alan Prem Kumar
- NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore;
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore;
- Departments of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
- National University Cancer Institute, National University Health System, Singapore 119074, Singapore
| | - Celestial T. Yap
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore; (S.D.); (V.G.)
- NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore;
- National University Cancer Institute, National University Health System, Singapore 119074, Singapore
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Nanohydrogels: Advanced Polymeric Nanomaterials in the Era of Nanotechnology for Robust Functionalization and Cumulative Applications. Int J Mol Sci 2022; 23:ijms23041943. [PMID: 35216058 PMCID: PMC8875080 DOI: 10.3390/ijms23041943] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/03/2022] [Accepted: 02/07/2022] [Indexed: 12/17/2022] Open
Abstract
In the era of nanotechnology, the synthesis of nanomaterials for advanced applications has grown enormously. Effective therapeutics and functionalization of effective drugs using nano-vehicles are considered highly productive and selectively necessary. Polymeric nanomaterials have shown their impact and influential role in this process. Polymeric nanomaterials in molecular science are well facilitated due to their low cytotoxic behavior, robust functionalization, and practical approach towards in vitro and in vivo therapeutics. This review highlights a brief discussion on recent techniques used in nanohydrogel designs, biomedical applications, and the applied role of nanohydrogels in the construction of advanced therapeutics. We reviewed recent studies on nanohydrogels for their wide applications in building strategies for advantageously controlled biological applications. The classification of polymers is based on their sources of origin. Nanohydrogel studies are based on their polymeric types and their endorsed utilization for reported applications. Nanotechnology has developed significantly in the past decades. The novel and active role of nano biomaterials with amplified aspects are consistently being studied to minimize the deleterious practices and side effects. Here, we put forth challenges and discuss the outlook regarding the role of nanohydrogels, with future perspectives on delivering constructive strategies and overcoming the critical objectives in nanotherapeutic systems.
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Demirbolat GM, Coskun GP, Erdogan O, Cevik O. Long chain fatty acids can form aggregates and affect the membrane integrity. Colloids Surf B Biointerfaces 2021; 204:111795. [PMID: 33945967 DOI: 10.1016/j.colsurfb.2021.111795] [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: 02/18/2021] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 10/21/2022]
Abstract
Stearic acid (SA) and oleic acid (OA) which are inherently existing fatty acids (FAs) in the body can alter cell membrane function and interact with each other. However, discrepancies arise as to whether these effects are beneficial or harmful on the body. To resolve this ambiguity, there is a dire need to study how FAs can affect the etiology of diseases and their treatment. In this study, we aimed to investigate long chain FAs aggregation behaviors and their effects on membrane integrity and cell viability. We determined the critical aggregation concentration (CAC) of SA and OA (1110 μM and 300 μM, respectively which were less amount than that used in nanocarriers). In TEM images, hexagonal overlapped or fused structures of SA were seen, whereas quite small spherical clusters of OA were obtained. Membrane integrity assessments demonstrated that SA and OA at their own CAC and below could crack the lipid junctions on membrane mimicking systems. Moreover, they completely disrupt the membrane integrity above the CAC at pH 7.2. Cell viabilities on various cell lines were assessed after exposed to SA or OA aggregates. SA was more aggressive than OA on cell death in all cell lines. The effect of SA on PC3 cell lines was in a concentration-dependent manner. The effect of SA above CAC boosted the inhibition of cell viability. Furthermore, OA showed a proliferation effect on PC3 cells. Consequently, the aggregation behavior of FAs should be considered as a noteworthy factor in physiological functions.
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Affiliation(s)
- Gulen Melike Demirbolat
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Biruni University, Zeytinburnu, Istanbul, 34010, Turkey; Department of Pharmaceutical Technology, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas, 58140, Turkey.
| | - Goknil Pelin Coskun
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Acibadem Mehmet Ali Aydinlar University, 34684, Istanbul, Turkey.
| | - Omer Erdogan
- Department of Biochemistry, School of Medicine, Aydin Adnan Menderes University, Aydin, 09010, Turkey.
| | - Ozge Cevik
- Department of Biochemistry, School of Medicine, Aydin Adnan Menderes University, Aydin, 09010, Turkey.
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Enhanced Cytotoxic Activity of Docetaxel-Loaded Silk Fibroin Nanoparticles against Breast Cancer Cells. Polymers (Basel) 2021; 13:polym13091416. [PMID: 33925581 PMCID: PMC8123888 DOI: 10.3390/polym13091416] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/17/2021] [Accepted: 04/21/2021] [Indexed: 12/16/2022] Open
Abstract
Despite decades of research, breast cancer therapy remains a great challenge. Docetaxel is an antimicrotubule agent that is effectively used for the treatment of breast cancer. However, its clinical use is significantly hampered by its low water solubility and systemic toxicity. The current study was designed to prepare docetaxel (DXL)-loaded silk-fibroin-based nanoparticles (SF-NPs) and to screen their potential antitumor activity against breast cancer cell lines. DXL-loaded SF-NPs were prepared using a nanoprecipitation technique and were evaluated for particle size, zeta potential, entrapment efficiency, and in vitro release profile. In addition, DXL-loaded SF-NPs were screened for in vitro cytotoxicity, cellular uptake, and apoptotic potential against MCF-7 and MDA-MB-231 breast cancer cell lines. The prepared DXL-loaded SF-NPs were 178 to 198 nm in diameter with a net negative surface charge and entrapment efficiency ranging from 56% to 72%. In vitro release studies exhibited a biphasic release profile of DXL from SF-NPs with sustained drug release for 72 h. In vitro cell studies revealed that entrapment of DXL within SF-NPs significantly improved cytotoxic potential against breast cancer cell lines, compared to the free drug, and enhanced cellular uptake of DXL by breast cancer cells. Furthermore, the accumulation in the G2/M phase was significantly higher in cells treated with DXL-loaded SF-NPs than in cells treated with free DXL. Collectively, the superior antitumor activities of DXL-loaded SF-NPs against breast cancer cells, compared to free DXL, could be ascribed to improved apoptosis and cell cycle arrest. Our results highlighted the feasibility of using silk fibroin nanoparticles as a nontoxic biocompatible delivery vehicle for enhanced therapeutic outcomes in breast cancer.
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Baicalin suppresses the cell cycle progression and proliferation of prostate cancer cells through the CDK6/FOXM1 axis. Mol Cell Biochem 2020; 469:169-178. [DOI: 10.1007/s11010-020-03739-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 04/25/2020] [Indexed: 02/07/2023]
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Kim CH, Kang TH, Kim BD, Lee TH, Yoon HY, Goo YT, Choi YS, Kang MJ, Choi YW. Enhanced docetaxel delivery using sterically stabilized RIPL peptide-conjugated nanostructured lipid carriers: In vitro and in vivo antitumor efficacy against SKOV3 ovarian cancer cells. Int J Pharm 2020; 583:119393. [PMID: 32376445 DOI: 10.1016/j.ijpharm.2020.119393] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/03/2020] [Accepted: 04/29/2020] [Indexed: 02/07/2023]
Abstract
Docetaxel (DTX) has poor solubility, low specificity, and severe side effects. For efficient targeting of DTX to hepsin-overexpressing SKOV3 ovarian cancer cells, PEGylated and RIPL peptide (IPLVVPLRRRRRRRRC)-conjugated nanostructured lipid carriers (PEG-RIPL-NLCs) were examined for in vitro and in vivo antitumor efficacy. DTX-loaded plain NLCs (DTX-pNLCs), RIPL-NLCs (DTX-RIPL-NLCs), and PEG-RIPL-NLCs (DTX-PEG-RIPL-NLCs) were prepared using a solvent emulsification-evaporation technique. DTX was successfully loaded with high encapsulation efficiency (>93%), and all NLCs showed homogeneous dispersion with zeta potentials varying from -17 to 15 mV. Drug release was biphasic: initial rapid release, then gradual release. In vitro cytotoxicity was time- and dose-dependent: DTX-RIPL-NLCs and DTX-PEG-RIPL-NLCs exhibited greater cytotoxicity, enhanced cell apoptosis owing to the cell cycle arrest in the G2/M phase, and increased activation of the mitochondria-related intrinsic apoptosis pathway compared to DTX-pNLCs. Pharmacokinetic experiments in male Sprague-Dawley rats revealed that DTX-PEG-RIPL-NLCs increased the mean residence time of DTX but reduced total body clearance and volume of distribution. In a SKOV3-bearing xenograft Balb/c athymic mouse model, DTX-PEG-RIPL-NLCs suppressed tumors, evidenced by tumor volume change and histopathological examination. Thus, we conclude that PEG-RIPL-NLCs have an advantage of high payload of poorly water-soluble drugs and are a good candidate for drug targeting to SKOV3-derived ovarian cancer.
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Affiliation(s)
- Chang Hyun Kim
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Tae Hoon Kang
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Byoung Deok Kim
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Tae Hwa Lee
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Ho Yub Yoon
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Yoon Tae Goo
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
| | - Yong Seok Choi
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, Chungnam 31116, Republic of Korea.
| | - Myung Joo Kang
- College of Pharmacy, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, Chungnam 31116, Republic of Korea.
| | - Young Wook Choi
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
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Čermák V, Dostál V, Jelínek M, Libusová L, Kovář J, Rösel D, Brábek J. Microtubule-targeting agents and their impact on cancer treatment. Eur J Cell Biol 2020; 99:151075. [PMID: 32414588 DOI: 10.1016/j.ejcb.2020.151075] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/25/2020] [Accepted: 03/17/2020] [Indexed: 02/07/2023] Open
Abstract
Microtubule-targeting agents (MTAs) constitute a diverse group of chemical compounds that bind to microtubules and affect their properties and function. Disruption of microtubules induces various cellular responses often leading to cell cycle arrest or cell death, the most common effect of MTAs. MTAs have found a plethora of practical applications in weed control, as fungicides and antiparasitics, and particularly in cancer treatment. Here we summarize the current knowledge of MTAs, the mechanisms of action and their role in cancer treatment. We further outline the potential use of MTAs in anti-metastatic therapy based on inhibition of cancer cell migration and invasiveness. The two main problems associated with cancer therapy by MTAs are high systemic toxicity and development of resistance. Toxic side effects of MTAs can be, at least partly, eliminated by conjugation of the drugs with various carriers. Moreover, some of the novel MTAs overcome the resistance mediated by both multidrug resistance transporters as well as overexpression of specific β-tubulin types. In anti-metastatic therapy, MTAs should be combined with other drugs to target all modes of cancer cell invasion.
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Affiliation(s)
- Vladimír Čermák
- Department of Cell Biology, Charles University, Viničná 7, 12843 Prague, Czech Republic; Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University (BIOCEV), Průmyslová 595, 25242 Vestec u Prahy, Czech Republic
| | - Vojtěch Dostál
- Department of Cell Biology, Charles University, Viničná 7, 12843 Prague, Czech Republic
| | - Michael Jelínek
- Department of Biochemistry, Cell and Molecular Biology & Center for Research of Diabetes, Metabolism, and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Lenka Libusová
- Department of Cell Biology, Charles University, Viničná 7, 12843 Prague, Czech Republic
| | - Jan Kovář
- Department of Biochemistry, Cell and Molecular Biology & Center for Research of Diabetes, Metabolism, and Nutrition, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Daniel Rösel
- Department of Cell Biology, Charles University, Viničná 7, 12843 Prague, Czech Republic; Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University (BIOCEV), Průmyslová 595, 25242 Vestec u Prahy, Czech Republic
| | - Jan Brábek
- Department of Cell Biology, Charles University, Viničná 7, 12843 Prague, Czech Republic; Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University (BIOCEV), Průmyslová 595, 25242 Vestec u Prahy, Czech Republic.
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9
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Esim O, Sarper M, Ozkan CK, Oren S, Baykal B, Savaser A, Ozkan Y. Effect simultaneous delivery with P-glycoprotein inhibitor and nanoparticle administration of doxorubicin on cellular uptake and in vitro anticancer activity. Saudi Pharm J 2020; 28:465-472. [PMID: 32273806 PMCID: PMC7132609 DOI: 10.1016/j.jsps.2020.02.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 02/12/2020] [Indexed: 12/02/2022] Open
Abstract
Multidrug resistance (MDR) is the most common problem of inadequate therapeutic response in tumor cells. Many trials has been developed to overcome drug efflux by P-glycoprotein (P-gp). For instance, co-administration of a number of drugs called chemosensitizers or MDR modulators with a chemotherapeutic agent to inhibit drug efflux. But for optimal synergy, the drug and inhibitor combination may need to be temporally colocalized in the tumor cells. In this study, we encapsulated the Ver and Dox in PLGA nanoparticles to inhibit the P-gp drug efflux in breast cancer. Moreover, the effect of either Dox solution (DoxS), Dox nanoparticles (DoxNP), DoxS + VerS, DoxNP + VerS, DoxNP + VerNP or Dox-VerNP was evaluated. It was found that co administration of DoxNP with VerNP (70.76%) showed similar cellular uptake of Dox to Dox/Ver combination solution (70.62%). However it is observed that DoxNP + VerNP has the highest apoptotic activity (early apoptotic 13.52 ± 0.06%, late apoptotic 53.94 ± 0.15%) on human breast adenocarcinoma (MCF 7) cells. Hence, it is suggested that DoxNP + VerNP is a promising administration for tumor therapy.
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Affiliation(s)
- Ozgur Esim
- University of Health Sciences, Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
| | - Meral Sarper
- University of Health Sciences, Gulhane Institute of Health Sciences, Ankara, Turkey
| | - Cansel K Ozkan
- University of Health Sciences, Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
| | - Sema Oren
- University of Health Sciences, Gulhane Institute of Health Sciences, Ankara, Turkey
| | - Baris Baykal
- University of Health Sciences, Gulhane Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Ayhan Savaser
- University of Health Sciences, Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
| | - Yalcin Ozkan
- University of Health Sciences, Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
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da Rocha MCO, da Silva PB, Radicchi MA, Andrade BYG, de Oliveira JV, Venus T, Merker C, Estrela-Lopis I, Longo JPF, Báo SN. Docetaxel-loaded solid lipid nanoparticles prevent tumor growth and lung metastasis of 4T1 murine mammary carcinoma cells. J Nanobiotechnology 2020; 18:43. [PMID: 32164731 PMCID: PMC7068958 DOI: 10.1186/s12951-020-00604-7] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 03/06/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Metastasis causes the most breast cancer-related deaths in women. Here, we investigated the antitumor effect of solid lipid nanoparticles (SLN-DTX) when used in the treatment of metastatic breast tumors using 4T1-bearing BALB/c mice. RESULTS Solid lipid nanoparticles (SLNs) were produced using the high-energy method. Compritol 888 ATO was selected as the lipid matrix, and Pluronic F127 and Span 80 as the surfactants to stabilize nanoparticle dispersion. The particles had high stability for at least 120 days. The SLNs' dispersion size was 128 nm, their polydispersity index (PDI) was 0.2, and they showed a negative zeta potential. SLNs had high docetaxel (DTX) entrapment efficiency (86%), 2% of drug loading and showed a controlled drug-release profile. The half-maximal inhibitory concentration (IC50) of SLN-DTX against 4T1 cells was more than 100 times lower than that of free DTX after 24 h treatment. In the cellular uptake test, SLN-DTX was taken into the cells significantly more than free DTX. The accumulation in the G2-M phase was significantly higher in cells treated with SLN-DTX (73.7%) than in cells treated with free DTX (23.0%), which induced subsequent apoptosis. TEM analysis revealed that SLN-DTX internalization is mediated by endocytosis, and fluorescence microscopy showed DTX induced microtubule damage. In vivo studies showed that SLN-DTX compared to free docetaxel exhibited higher antitumor efficacy by reducing tumor volume (p < 0.0001) and also prevented spontaneous lung metastasis in 4T1 tumor-bearing mice. Histological studies of lungs confirmed that treatment with SLN-DTX was able to prevent tumor. IL-6 serum levels, ki-67 and BCL-2 expression were analyzed and showed a remarkably strong reduction when used in a combined treatment. CONCLUSIONS These results indicate that DTX-loaded SLNs may be a promising carrier to treat breast cancer and in metastasis prevention.
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Affiliation(s)
| | - Patrícia Bento da Silva
- Nanobiotechnology Laboratory, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil
| | - Marina Arantes Radicchi
- Electron Microscopy Laboratory, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil
| | | | - Jaqueline Vaz de Oliveira
- Nanobiotechnology Laboratory, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil
| | - Tom Venus
- Institute of Medical Physics & Biophysics, Leipzig University, Leipzig, Germany
| | - Carolin Merker
- Institute of Medical Physics & Biophysics, Leipzig University, Leipzig, Germany
| | - Irina Estrela-Lopis
- Institute of Medical Physics & Biophysics, Leipzig University, Leipzig, Germany
| | - João Paulo Figueiró Longo
- Nanobiotechnology Laboratory, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil
| | - Sônia Nair Báo
- Electron Microscopy Laboratory, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil.
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Liu Y, Tang Y, Wu J, Sun J, Liao X, Teng Z, Lu G. Facile synthesis of biodegradable flower-like hydroxyapatite for drug and gene delivery. J Colloid Interface Sci 2020; 570:402-410. [PMID: 32224321 DOI: 10.1016/j.jcis.2020.03.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 03/03/2020] [Accepted: 03/03/2020] [Indexed: 11/29/2022]
Abstract
Controlled synthesis of hierarchical hydroxyapatite materials is a hot research topic because of the excellent biocompatibility and bioactivity of the materials. In this study, flower-like hydroxyapatite spheres (FHAPS) were facile synthesized in one pot using Al(OH)3 as a structure-directing agent. The prepared FHAPS comprised nanosheets possessing a uniform diameter of approximately 4 µm. Notably, the FHAPS can be degraded in solutions with a pH of 5.5 for 144 h or incubated with cells for 48 h. In addition, the FHAPS have rough surfaces, which exhibit high loading contents for the anticancer drug doxorubicin (DOX, 9.1%) and siRNA (2.0%). Thus, the FHAPS can effectively deliver DOX into drug-resistant breast cancer cells to exert an excellent killing effect compared with free DOX and transfect siRNA into tumor cells to interfere with the expression of the target protein. Taken together, this work successfully prepared FHAPS via a convenient synthesis route that shows high delivery efficiency for anticancer drugs and siRNA.
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Affiliation(s)
- Ying Liu
- Department of Medical Imaging, Jinling Hospital, School of Medicine, Nanjing University, Jiangsu 210002, PR China
| | - Yuxia Tang
- Department of Medical Imaging, Jinling Hospital, School of Medicine, Nanjing University, Jiangsu 210002, PR China.
| | - Jiang Wu
- Department of Medical Imaging, Jinling Hospital, School of Medicine, Nanjing University, Jiangsu 210002, PR China
| | - Jing Sun
- Department of Medical Imaging, Jinling Hospital, School of Medicine, Nanjing University, Jiangsu 210002, PR China
| | - Xiang Liao
- Department of Medical Imaging, Jinling Hospital, School of Medicine, Nanjing University, Jiangsu 210002, PR China
| | - Zhaogang Teng
- Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210046, Jiangsu, PR China.
| | - Guangming Lu
- Department of Medical Imaging, Jinling Hospital, School of Medicine, Nanjing University, Jiangsu 210002, PR China.
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12
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Bulbake U, Kommineni N, Ionov M, Bryszewska M, Khan W. Comparison of cationic liposome and PAMAM dendrimer for delivery of anti-Plk1 siRNA in breast cancer treatment. Pharm Dev Technol 2020; 25:9-19. [PMID: 30633621 DOI: 10.1080/10837450.2019.1567763] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 01/02/2019] [Accepted: 01/05/2019] [Indexed: 12/30/2022]
Abstract
Delivery of negatively charged, high molecular weight and unstable siRNA is difficult. The present study describes the development and comparison of cationic liposomes (CLs) and polyamidoamine (PAMAM) dendrimer generation 4 (PG4) nanocarriers of gene for cancer therapy. CLs and PG4 were complexed with anticancer siRNA (siPlk1) to form siPlk1-CLs lipoplex and siPlk1-PG4 dendriplex. siPlk1-CLs/PG4 complexes were characterized for average particle size, zeta potential, fluorescence and integrity of siPlk1 by agarose gel electrophoresis, ethidium bromide intercalation assay, circular dichroism, protection against RNase and stability in serum. The complexation of CLs/siPlk1 and PG4/siPlk1 were at a 100/1 and 2/1 charge ratio respectively. The CLs and PG4 were effective in protecting siPlk1 from RNase activity, also they enhanced the siPlk1 serum stability. Additionally, siPlk1-CLs and siPlk1-PG4 were evaluated by cell culture studies. In vitro anticancer activity study using MCF-7 cells showed that siPlk1-CLs and siPlk1-PG4 causes nearly similar cell death. Both siPlk1-CLs and siPlk1-PG4 resulted in enhanced cellular uptake of siPlk1 in MDA-MB-231 cells compared to naked siPlk1 solution. Cell cycle analysis suggested that increased cell population arrest in subG1 phase by siPlk1-CLs and siPlk1-PG4 compared to naked siPlk1 solution. These observations suggested that CLs and PG4 can be a potential carrier for siPlk1 delivery in breast cancer treatment.
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Affiliation(s)
- Upendra Bulbake
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Nagavendra Kommineni
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Maksim Ionov
- Department of General Biophysics, Faculty of Biology and Enviromental Protection, University of Lodz, Lodz, Poland
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Enviromental Protection, University of Lodz, Lodz, Poland
| | - Wahid Khan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
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Ghassami E, Varshosaz J, Mirian M, Jahanian-Najafabadi A. HER-2 aptamer-targeted Ecoflex ® nanoparticles loaded with docetaxel promote breast cancer cells apoptosis and anti-metastatic effect. IET Nanobiotechnol 2019; 13:428-434. [PMID: 31171748 DOI: 10.1049/iet-nbt.2018.5047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Breast cancer is a major cause of cancer mortality. Regarding the advantages of polymeric nanoparticles as drug delivery systems with targeting potential, in this study the antitumor mechanism of targeted docetaxel polymeric nanoparticles of Ecoflex® was exploited. Since the overexpression of HER-2 receptor in breast cancer cases is associated with poor prognosis and more aggressive disease, the proposed nanoparticles were conjugated to HER-2 specific aptamer molecules. In vitro cytotoxicity was evaluated by MTT assay. Flow-cytometry analysis was performed to evaluate the cellular uptake of nanoparticles loaded with a fluorescent probe. Anti-migration effects of samples were studied. Annexin IV-FITC and propidium iodide were implemented to investigate apoptosis induction and cell cycle analysis. Enhanced cytotoxicity compared with free docetaxel was explained considering improved cellular uptake of the nanoparticles and induced apoptosis in a larger portion of cells. Lower relative migration demonstrated enhanced anti-migration effect of nanoparticles, and cell cycle was arrested in G2/M phase using both formulations so the anti-microtubule mechanism of the drug was not altered. Therefore, this system could offer a potential substitute for the currently marketed docetaxel formulations, which may reduce adverse effects of the drug, while further in vivo and clinical investigations are required.
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Affiliation(s)
- Erfaneh Ghassami
- Pharmacy Students Research Committee, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jaleh Varshosaz
- Department of Pharmaceutics, Faculty of Pharmacy and Novel Drug Delivery Systems Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Mina Mirian
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Jahanian-Najafabadi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
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14
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Bulbake U, Kommineni N, Bryszewska M, Ionov M, Khan W. Cationic liposomes for co-delivery of paclitaxel and anti-Plk1 siRNA to achieve enhanced efficacy in breast cancer. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.09.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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15
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Bernstein DE, Bernstein BS. Urological technology: where will we be in 20 years' time? Ther Adv Urol 2018; 10:235-242. [PMID: 30034542 PMCID: PMC6048627 DOI: 10.1177/1756287218782666] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 05/23/2018] [Indexed: 12/18/2022] Open
Abstract
Since prehistoric times, our understanding of urology has rapidly expanded. Whilst primitive urologists began by using urine as a therapeutic substance, modern urologists may find themselves removing a kidney remotely by driving a robotic arm, with seven degrees of movement, while using image overlay-augmented reality. This review provides an insight into the potential status of urological technology in 20 years' time, assessed through an analysis of developments in imaging, diagnostics, robotics and further technologies. A particular emphasis is given to the promising fields of minimally invasive techniques, nanotechnology and tissue engineering, which likely hold the key to a new era for urology.
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16
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Qi C, Lin J, Fu LH, Huang P. Calcium-based biomaterials for diagnosis, treatment, and theranostics. Chem Soc Rev 2018; 47:357-403. [DOI: 10.1039/c6cs00746e] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Calcium-based biomaterials with good biosafety and bio-absorbability are promising for biomedical applications such as diagnosis, treatment, and theranostics.
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Affiliation(s)
- Chao Qi
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
| | - Jing Lin
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
| | - Lian-Hua Fu
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical
- Measurements and Ultrasound Imaging
- Laboratory of Evolutionary Theranostics
- School of Biomedical Engineering
- Health Science Center
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17
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Zhu Y, Zhang J, Meng F, Cheng L, Feijen J, Zhong Z. Reduction-responsive core-crosslinked hyaluronic acid-b-poly(trimethylene carbonate-co-dithiolane trimethylene carbonate) micelles: synthesis and CD44-mediated potent delivery of docetaxel to triple negative breast tumor in vivo. J Mater Chem B 2018; 6:3040-3047. [DOI: 10.1039/c8tb00094h] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Docetaxel-loaded core crosslinked HA-P(TMC-DTC) micelles show high targetability to CD44-overexpressing MDA-MB-231 breast tumor and effectively inhibit tumor growth.
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Affiliation(s)
- Yaqin Zhu
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Jian Zhang
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Fenghua Meng
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Liang Cheng
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Jan Feijen
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou
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18
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Sreeranganathan M, Uthaman S, Sarmento B, Mohan CG, Park IK, Jayakumar R. In vivo evaluation of cetuximab-conjugated poly(γ-glutamic acid)-docetaxel nanomedicines in EGFR-overexpressing gastric cancer xenografts. Int J Nanomedicine 2017; 12:7165-7182. [PMID: 29033568 PMCID: PMC5628680 DOI: 10.2147/ijn.s143529] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Epidermal growth factor receptor (EGFR), upregulated in gastric cancer patients, is an oncogene of interest in the development of targeted cancer nanomedicines. This study demonstrates in silico modeling of monoclonal antibody cetuximab (CET MAb)-conjugated docetaxel (DOCT)-loaded poly(γ-glutamic acid) (γ-PGA) nanoparticles (Nps) and evaluates the in vitro/in vivo effects on EGFR-overexpressing gastric cancer cells (MKN-28). Nontargeted DOCT-γ-PGA Nps (NT Nps: 110±40 nm) and targeted CET MAb-DOCT-γ-PGA Nps (T Nps: 200±20 nm) were prepared using ionic gelation followed by 1-Ethyl-3-(3-dimethyl aminopropyl)carbodiimide–N-Hydoxysuccinimide (EDC–NSH) chemistry. Increased uptake correlated with enhanced cytotoxicity induced by targeted Nps to EGFR +ve MKN-28 compared with nontargeted Nps as evident from MTT and flow cytometric assays. Nanoformulated DOCT showed a superior pharmacokinetic profile to that of free DOCT in Swiss albino mice, indicating the possibility of improved therapeutic effect in the disease model. Qualitative in vivo imaging showed early and enhanced tumor targeted accumulation of CET MAb-DOCT-γ-PGA Nps in EGFR +ve MKN-28–based gastric cancer xenograft, which exhibited efficient arrest of tumor growth compared with nontargeted Nps and free DOCT. Thus, actively targeted CET MAb-DOCT-γ-PGA Nps could be developed as a substitute to conventional nonspecific chemotherapy, and hence could become a feasible strategy for cancer therapy for EGFR-overexpressing gastric tumors.
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Affiliation(s)
| | - Saji Uthaman
- Department of Biomedical Science, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Bruno Sarmento
- I3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | | | - In-Kyu Park
- Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, India
| | - Rangasamy Jayakumar
- Department of Biomedical Science, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Republic of Korea
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Uskoković V, Ghosh S, Wu VM. Antimicrobial Hydroxyapatite-Gelatin-Silica Composite Pastes with Tunable Setting Properties. J Mater Chem B 2017; 5:6065-6080. [PMID: 29104753 DOI: 10.1039/c7tb01794d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bone grafting is one of the commonest surgical procedures, yet all bone substitutes developed so far suffer from specific weaknesses and the search for a bone graft material with ideal physical and biological properties is still ongoing. Calcium phosphate pastes are the most frequently used synthetic bone grafts, yet they (a) often take an impractically long time to set, (b) release the drug content too fast, and (c) do not form pores large enough to accommodate host cells and foster osseointegration. To make up for these deficiencies, we introduced gelatin and silica to pastes composed of 5-15 nm sized hydroxyapatite nanoparticles and yielded a bioresorbable composite that is compact, yet flowing upon injection; that prevents setting at room temperature, but sets promptly, in minutes, at 37 °C; that displays an increase in surface porosity following immersion in physiological fluids; that allows for sustained release of antibiotics; and that sets in a tunable manner and in clinically relevant time windows: 1-3 minutes at its fastest. Timelapse, in situ X-ray diffraction analysis demonstrated that the setting process is accompanied by an increase in crystallinity of the initially amorphous hydroxyapatite, involving no polymorphic phase transitions in its course. Setting time can be tuned by controlling the weight content of gelatin or powder-to-liquid ratio. The release of vancomycin was slow, ~ 8 % after 2 weeks, and unaffected by the gelatin content. While vancomycin-loaded pastes were effective in reducing the concentration of all bacterial species analyzed, the bacteriostatic effects of the antibiotic-free pastes were pronounced against S. liquefaciens and E. coli. S. liquefaciens bacilli underwent beading and filamentation during the treatment, suggesting that the antimicrobial effects are attributable to cell wall disruption by hydroxyapatite nanoparticles. Vancomycin-loaded pastes augmented the activity of the antibiotic against P. aeruginosa and S. liquefaciens, while exhibiting no negative effects against human mesenchymal stem cells. They were also uptaken three times more abundantly than pure hydroxyapatite, indicating the theoretical favorability of their use for intracellular delivery of therapeutics. This selectivity, toxic for bacteria and harmless for primary stem cells, is promising for application as bone grafts for osteomyelitis.
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Affiliation(s)
- Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, Chapman University School of Pharmacy, 9401 Jeronimo Road, Irvine, CA 92618-1908, USA
| | - Shreya Ghosh
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, IL 60607-7052, USA
| | - Victoria M Wu
- Advanced Materials and Nanobiotechnology Laboratory, Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, Chapman University School of Pharmacy, 9401 Jeronimo Road, Irvine, CA 92618-1908, USA
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20
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Rapamycin/sodium hyaluronate binding on nano-hydroxyapatite coated titanium surface improves MC3T3-E1 osteogenesis. PLoS One 2017; 12:e0171693. [PMID: 28182765 PMCID: PMC5300161 DOI: 10.1371/journal.pone.0171693] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 01/23/2017] [Indexed: 11/19/2022] Open
Abstract
Endosseous titanium (Ti) implant failure due to poor biocompatibility of implant surface remains a major problem for osseointegration. Improving the topography of Ti surface may enhance osseointegration, however, the mechanism remains unknown. To investigate the effect of modified Ti surface on osteogenesis, we loaded rapamycin (RA) onto nano-hydroxyapatite (HAp) coated Ti surface which was acid-etched, alkali-heated and HAp coated sequentially. Sodium hyaluronate (SH) was employed as an intermediate layer for the load of RA, and a steady release rate of RA was maintained. Cell vitality of MC3T3-E1 was assessed by MTT. Osteogenesis of MC3T3-E1 on this modified Ti surface was evaluated by alkaline phosphatase (ALP) activity, mineralization and related osteogenesis genes osteocalcin (OCN), osteopontin (OPN), Collagen-I and Runx2. The result revealed that RA/SH-loaded nano-HAp Ti surface was innocent for cell vitality and even more beneficial for cell osteogenesis in vitro. Furthermore, osteogenesis of MC3T3-E1 showed significant association with the mammalian target of rapamycin (mTOR) phosphorylation by RA, which required further study about the mechanism. The approach to this modified Ti surface presented in this paper has high research value for the development of Ti-based implant.
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21
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Bioactive apatite incorporated alginate microspheres with sustained drug-delivery for bone regeneration application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:779-86. [DOI: 10.1016/j.msec.2016.02.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/04/2016] [Accepted: 02/03/2016] [Indexed: 11/18/2022]
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22
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Xiong H, Du S, Ni J, Zhou J, Yao J. Mitochondria and nuclei dual-targeted heterogeneous hydroxyapatite nanoparticles for enhancing therapeutic efficacy of doxorubicin. Biomaterials 2016; 94:70-83. [PMID: 27105438 DOI: 10.1016/j.biomaterials.2016.04.004] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/02/2016] [Accepted: 04/06/2016] [Indexed: 12/18/2022]
Abstract
Dual-targeted nanoparticles have been increasingly used to realize greater anti-proliferation effect by attacking double key sites of tumor cells. In order to retain nuclei inhibition effect and enhance DOX-induced apoptosis by mitochondrial pathway simultaneously, hyaluronic acid (HA) modified hydroxyapatite (HAP) nanoparticles (HAP-HA), the functional calcium-based tumor targeting nanoparticles, have been developed. In this nanosystem, HA acts as an active tumor-targeting ligand to bind the CD44 receptors which are overexpressed on the surface of tumor cells while HAP can load and deliver DOX to both nuclei and mitochondria of tumor cells. In this study, DOX-loaded HAP-HA nanoparticles (DOX/HAP-HA) exhibited satisfactory drug loading efficiency which was up to 214.55 ± 51.05 μg mg(-1) and showed a uniform nano-scaled particle size. The mitochondrial and nuclei targetability of DOX/HAP-HA was confirmed by confocal laser scanning microscopy analyses. Besides, western blot assay demonstrated that DOX/HAP-HA could markedly enhance mitochondrial cytochrome C leakage and thereby activate apoptotic cascade associated with it. In addition, in vivo anti-tumor efficacy and toxicity evaluation of DOX/HAP-HA indicated that DOX/HAP-HA was more effective and less harmful compared to other groups. DOX/HAP-HA might be a new promising targeted delivery system for effective cancer therapy.
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Affiliation(s)
- Hui Xiong
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Shi Du
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jiang Ni
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jianping Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Jing Yao
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China.
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Chen F, Zhang J, Wang L, Wang Y, Chen M. Tumor pH(e)-triggered charge-reversal and redox-responsive nanoparticles for docetaxel delivery in hepatocellular carcinoma treatment. NANOSCALE 2015; 7:15763-15779. [PMID: 26355843 DOI: 10.1039/c5nr04612b] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The insufficient cellular uptake of nanocarriers and their slow drug release have become major obstacles for achieving satisfactory anticancer outcomes in nano-medicine therapy. Because of the slightly acidic extracellular environment (pHe≈ 6.5) and a higher glutathione (GSH) concentration (approximately 10 mM) in tumor tissue/cells, we firstly designed a novel d-α-tocopheryl polyethylene glycol 1000-poly(β-amino ester) block copolymer containing disulfide linkages (TPSS). TPSS nanoparticles (NPs) with pH- and redox-sensitive behaviors were developed for on-demand delivery of docetaxel (DTX) in hepatocellular carcinoma. DTX/TPSS NPs exhibited sensitive surface charge reversal from -47.6 ± 2.5 mV to +22.5 ± 3.2 mV when the pH decreased from 7.4 to 6.5, to simulate the pHe. Meanwhile, anabatic drug release of DTX/TPSS NPs was observed in PBS buffer (pH 6.5, 10 mM GSH). Due to the synergism between the pHe-triggered charge reversal and the redox-triggered drug release, enhanced drug uptake and anticancer efficacy were observed in HepG2 and SMMC 7721 cells treated with DTX/TPSS NPs. The positively charged NPs exhibited a stronger inhibitory effect on cell proliferation, promoted cell cycle arrest in the G2/M phase, and increased the rate of apoptosis. More importantly, based on the higher tumor accumulation of TPSS vehicles in vivo, a significant suppression of tumor growth, but without side-effects, was observed when DTX/TPSS NPs were injected intravenously into HepG2 xenograft tumor-bearing mice. Collectively, these results demonstrate that the newly developed dual-functional TPSS copolymer may be utilized as a drug delivery system for anticancer therapy.
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Affiliation(s)
- Fengqian Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China.
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24
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Li Y, Maciel D, Rodrigues J, Shi X, Tomás H. Biodegradable Polymer Nanogels for Drug/Nucleic Acid Delivery. Chem Rev 2015; 115:8564-608. [PMID: 26259712 DOI: 10.1021/cr500131f] [Citation(s) in RCA: 324] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yulin Li
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- The State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology , Shanghai 200237, People's Republic of China
| | - Dina Maciel
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - João Rodrigues
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - Xiangyang Shi
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, People's Republic of China
| | - Helena Tomás
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
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Yan J, Wang Y, Zhang X, Liu S, Tian C, Wang H. Targeted nanomedicine for prostate cancer therapy: docetaxel and curcumin co-encapsulated lipid-polymer hybrid nanoparticles for the enhanced anti-tumor activity in vitro and in vivo. Drug Deliv 2015. [PMID: 26203689 DOI: 10.3109/10717544.2015.1069423] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE Docetaxel (DTX) remains the only effective drug for prolonging survival and improving quality of life of metastatic castration-resistant prostate cancer (mCRPC) patients. Combination anticancer therapy encapsulating DTX and another extract of traditional Chinese medicine is one nano-sized drug delivery system promising to generate synergistic anticancer effects, to maximize the treatment effect, and to overcome multi-drug resistance. The purpose of this study is to construct lipid-polymer hybrid nanoparticles (LPNs) as nanomedicine for co-encapsulation of DTX and curcumin (CUR). METHODS DTX and CUR co-encapsulated LPNs (DTX-CUR-LPNs) were constructed. DTX-CUR-LPNs were evaluated in terms of particles size, zeta potential, drug encapsulation, and drug delivery. The cytotoxicity of the LPNs was evaluated on PC-3 human prostate carcinoma cells (PC3 cells) by MTT assays. In vivo anti-tumor effects were observed on the PC3 tumor xenografts in mice. RESULTS The particle size of DTX-CUR-LPNs was 169.6 nm with a positive zeta potential of 35.7 mV. DTX-CUR-LPNs showed highest cytotoxicity and synergistic effect of two drugs in tumor cells in vitro. In mice-bearing PC-3 tumor xenografts, the DTX-CUR-LPNs inhibited tumor growth to a greater extent than other contrast groups, without inducing any obvious side effects. CONCLUSION According to these results, the novel nanomedicine offers great promise for the dual drugs delivery to the prostate cancer cells, showing the potential of synergistic combination therapy for prostate cancer.
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Affiliation(s)
- Jieke Yan
- a Department of Renal Transplantation , The Second Hospital of Shandong University , Ji'nan , Shandong , PR China and
| | - Yuzhen Wang
- b Clinical Department , Jinan Vocation College of Nursing , Ji'nan , Shandong , PR China
| | - Xufeng Zhang
- a Department of Renal Transplantation , The Second Hospital of Shandong University , Ji'nan , Shandong , PR China and
| | - Shuangde Liu
- a Department of Renal Transplantation , The Second Hospital of Shandong University , Ji'nan , Shandong , PR China and
| | - Chuan Tian
- a Department of Renal Transplantation , The Second Hospital of Shandong University , Ji'nan , Shandong , PR China and
| | - Hongwei Wang
- a Department of Renal Transplantation , The Second Hospital of Shandong University , Ji'nan , Shandong , PR China and
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Aksenova NA, Kardumyan VV, Glagolev NN, Shashkova VT, Matveeva IA, Timashev PS, Solov’eva AB. Effect of Pluronic F127 on the photosensitizing properties of dimegine in the presence of nanoparticles. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2015. [DOI: 10.1134/s0036024415080026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Fabrication of inorganic hydroxyapatite nanoparticles and organic biomolecules-dual encapsulated alginate microspheres. Biointerphases 2015; 10:021005. [DOI: 10.1116/1.4919561] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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28
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Multifunctional hydroxyapatite nanoparticles for drug delivery and multimodal molecular imaging. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1504-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Sharma S, Verma A, Teja BV, Pandey G, Mittapelly N, Trivedi R, Mishra PR. An insight into functionalized calcium based inorganic nanomaterials in biomedicine: Trends and transitions. Colloids Surf B Biointerfaces 2015; 133:120-39. [PMID: 26094145 DOI: 10.1016/j.colsurfb.2015.05.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 05/06/2015] [Accepted: 05/08/2015] [Indexed: 12/28/2022]
Abstract
Over the recent years the use of biocompatible and biodegradable nanoparticles in biomedicine has become a significant priority. Calcium based ceramic nanoparticles like calcium phosphate (CaP) and calcium carbonate (CaCO3) are therefore considered as attractive carriers as they are naturally present in human body with nanosize range. Their application in tissue engineering and localized controlled delivery of bioactives for bones and teeth is well established now, but recently their use has increased significantly as carrier of bioactives through other routes also. These delivery systems have become most potential alternatives to other commonly used delivery system because of their cost effectiveness, biodegradability, chemical stability, controlled and stimuli responsive behaviour. This review comprehensively covers their characteristic features, method of preparation and applications but the thrust is to focus their recent development, functionalization and use in systemic delivery. On the same platform mineralization of other nanoparticulate delivery system which has widened their application drug delivery will be discussed. The emphasis has been given on their pH dependent properties which make them excellent carriers for tumour targeting and intracellular delivery. Finally this review also attempts to discuss their drawback which limits their clinical utility.
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Affiliation(s)
- Shweta Sharma
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Ashwni Verma
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - B Venkatesh Teja
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Gitu Pandey
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Naresh Mittapelly
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - Ritu Trivedi
- Division of Endocrinology, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India
| | - P R Mishra
- Division of Pharmaceutics, CSIR-Central Drug Research Institute, B 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, U.P., India.
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Abstract
Urology, as a specialty, has always been at the forefront of innovation and research. Newer technologies have been rapidly embraced and, in many cases, improved upon in order to achieve better patient outcomes. This review addresses the possible future directions that technological advances in urology may take. The role of further miniaturization of urolithiasis treatment, robotic surgery and other minimally invasive techniques is addressed. The potential for enhanced imaging and diagnostic techniques like magnetic resonance imaging and ultrasonography modifications, as well as the potential applications of nanotechnology and tissue engineering, are reviewed. This article is based on the Dr. Sitharaman Best Essay award of the Urological Society of India for 2013.
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Affiliation(s)
- Vivek Venkatramani
- Department of Urology, Christian Medical College, Vellore, Tamil Nadu, India
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Sánchez Lafarga AK, Pacheco Moisés FP, Gurinov A, Ortiz GG, Carbajal Arízaga GG. Dual responsive dysprosium-doped hydroxyapatite particles and toxicity reduction after functionalization with folic and glucuronic acids. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 48:541-7. [DOI: 10.1016/j.msec.2014.12.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 11/13/2014] [Accepted: 12/05/2014] [Indexed: 11/16/2022]
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Oltolina F, Gregoletto L, Colangelo D, Gómez-Morales J, Delgado-López JM, Prat M. Monoclonal antibody-targeted fluorescein-5-isothiocyanate-labeled biomimetic nanoapatites: a promising fluorescent probe for imaging applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:1766-1775. [PMID: 25602940 DOI: 10.1021/la503747s] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Multifunctional biomimetic nanoparticles (NPs) are acquiring increasing interest as carriers in medicine and basic research since they can efficiently combine labels for subsequent tracking, moieties for specific cell targeting, and bioactive molecules, e.g., drugs. In particular, because of their easy synthesis, low cost, good biocompatibility, high resorbability, easy surface functionalization, and pH-dependent solubility, nanocrystalline apatites are promising candidates as nanocarriers. This work describes the synthesis and characterization of bioinspired apatite nanoparticles to be used as fluorescent nanocarriers targeted against the Met/hepatocyte growth factor receptor, which is considered a tumor associated cell surface marker of many cancers. To this aim the nanoparticles have been labeled with Fluorescein-5-isothiocyanate (FITC) by simple isothermal adsorption, in the absence of organic, possibly toxic, molecules, and then functionalized with a monoclonal antibody (mAb) directed against such a receptor. Direct labeling of the nanoparticles allowed tracking the moieties with spatiotemporal resolution and thus following their interaction with cells, expressing or not the targeted receptor, as well as their fate in vitro. Cytofluorometry and confocal microscopy experiments showed that the functionalized nanocarriers, which emitted a strong fluorescent signal, were rapidly and specifically internalized in cells expressing the receptor. Indeed, we found that, once inside the cells expressing the receptor, mAb-functionalized FITC nanoparticles partially dissociated in their two components, with some mAbs being recycled to the cell surface and the FITC-labeled nanoparticles remaining in the cytosol. This work thus shows that FITC-labeled nanoapatites are very promising probes for targeted cell imaging applications.
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Affiliation(s)
- Francesca Oltolina
- Dipartimento di Scienze della Salute, Università del Piemonte Orientale "Amedeo Avogadro" , Via Solaroli 17, 28100 Novara, Italy
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Jelínek M, Balušíková K, Schmiedlová M, Němcová-Fürstová V, Šrámek J, Stančíková J, Zanardi I, Ojima I, Kovář J. The role of individual caspases in cell death induction by taxanes in breast cancer cells. Cancer Cell Int 2015; 15:8. [PMID: 25685064 PMCID: PMC4329194 DOI: 10.1186/s12935-015-0155-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 12/31/2014] [Indexed: 12/04/2022] Open
Abstract
Background In previous study we showed that caspase-2 plays the role of an apical caspase in cell death induction by taxanes in breast cancer cells. This study deals with the role of other caspases. We tested breast cancer cell lines SK-BR-3 (functional caspase-3) and MCF-7 (nonfunctional caspase-3). Methods and results Using western blot analysis we demonstrated the activation of initiator caspase-8 and -9 as well as executioner caspase-6 and -7 in both tested cell lines after application of taxanes (paclitaxel, SB-T-1216) at death-inducing concentrations. Caspase-3 activation was also found in SK-BR-3 cells. Employing specific siRNAs after taxane application, suppression of caspase-3 expression significantly increased the number of surviving SK-BR-3 cells. Inhibition of caspase-7 expression also increased the number of surviving SK-BR-3 and MCF-7 cells. On the other hand, suppression of caspase-8 and caspase-9 expression had no significant effect on cell survival. However, caspase-9 seemed to be involved in the activation of caspase-3 and caspase-7. Caspase-3 and caspase-7 appeared to activate mutually. Furthermore, we observed a significant decrease in mitochondrial membrane potential (flow cytometric analysis) and cytochrome c release (confocal microscopy, western blot after cell fractionation) from mitochondria in SK-BR-3 cells. No such changes were observed in MCF-7 cells after taxane treatment. Conclusion We conclude that the activation of apical caspase-2 results in the activation of caspase-3 and -7 without the involvement of mitochondria. Caspase-9 can be activated directly via caspase-2 or alternatively after cytochrome c release from mitochondria. Subsequently, caspase-9 activation can also lead to caspase-3 and -7 activations. Caspase-3 and caspase-7 activate mutually. It seems that there is also a parallel pathway involving mitochondria that can cooperate in taxane-induced cell death in breast cancer cells.
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Affiliation(s)
- Michael Jelínek
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Kamila Balušíková
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martina Schmiedlová
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Vlasta Němcová-Fürstová
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jan Šrámek
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jitka Stančíková
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ilaria Zanardi
- Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY USA
| | - Iwao Ojima
- Institute of Chemical Biology and Drug Discovery, State University of New York at Stony Brook, Stony Brook, NY USA
| | - Jan Kovář
- Department of Cell and Molecular Biology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
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Zhang L, Yang Y, Song Y, Yang H, Zhou G, Xin Y, You Z, Xuan Y. Nanoparticle Delivery Systems Reduce the Reproductive Toxicity of Docetaxel in Rodents. ACTA ACUST UNITED AC 2014. [DOI: 10.1142/s1793984414410128] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Various docetaxel (DTX)-loaded nanoparticle delivery systems have been designed to enhance the solubility and pharmacological effects of DTX. However, the toxicity changes of these nano-modified DTX (nano-DTX) are not yet clear enough. Herein, to compare the reproductive toxicity between conventional DTX and nano-DTX, we performed sperm toxicity test in mice, and fertility and early embryo-fetal developmental toxicity test in rats. It was found that DTX severely repressed spermatogenesis and sperm motility, and dramatically increased sperm abnormality in mice and rats. Moreover, DTX significantly decreased copulation, conception and fertility indexes in rats, and no positive pregnant female rat was obtained after treatment with DTX. However, nano-DTX significantly reduced DTX-induced toxicity to sperm. Most importantly, nano-DTX obviously converted DTX-induced fertility and early embryo-fetal developmental toxicity. Furthermore, organ weights and histopathology examination revealed DTX, but not nano-DTX, significantly decreased testis and epididymis weights, and induced obvious histopathological atrophy of testes and epididymides in rats. Further studies indicated that changed activity of lactate dehydrogenase C4 (LDH-C4) in rodents testes was mainly responsible for the above observations. These results strongly support the idea that DTX-loaded nanoformulations have the potential to overcome the reproductive toxicity of DTX.
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Affiliation(s)
- Lijiang Zhang
- National Key Laboratory for Safety Evaluation of New Drugs, Center of Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310053, Zhejiang, P. R. China
| | - Yongguang Yang
- Department of Cancer and Cell Biology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Yisheng Song
- National Key Laboratory for Safety Evaluation of New Drugs, Center of Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310053, Zhejiang, P. R. China
| | - Hongzhong Yang
- National Key Laboratory for Safety Evaluation of New Drugs, Center of Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310053, Zhejiang, P. R. China
| | - Guoliang Zhou
- National Key Laboratory for Safety Evaluation of New Drugs, Center of Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310053, Zhejiang, P. R. China
| | - Yanfei Xin
- National Key Laboratory for Safety Evaluation of New Drugs, Center of Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310053, Zhejiang, P. R. China
| | - Zhenqiang You
- National Key Laboratory for Safety Evaluation of New Drugs, Center of Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310053, Zhejiang, P. R. China
| | - Yaoxian Xuan
- National Key Laboratory for Safety Evaluation of New Drugs, Center of Safety Evaluation, Zhejiang Academy of Medical Sciences, Hangzhou 310053, Zhejiang, P. R. China
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Li Y, Li P, Jin M, Jiang C, Gao Z. Docetaxel-encapsulating small-sized polymeric micelles with higher permeability and its efficacy on the orthotopic transplantation model of pancreatic ductal adenocarcinoma. Int J Mol Sci 2014; 15:23571-88. [PMID: 25526569 PMCID: PMC4284781 DOI: 10.3390/ijms151223571] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/25/2014] [Accepted: 11/25/2014] [Indexed: 12/13/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) elicits a dense stromal response that blocks vascular access because of pericyte coverage of vascular fenestrations. In this way, the PDAC stroma contributes to chemotherapy resistance, and the small-sized nanocarrier loaded with platinum has been adopted to address this problem which is not suitable for loading docetaxel (DTX). In the present study, we used the poly(d,l-lactide)-b-polyethylene glycol-methoxy (mPEG-b-PDLLA) to encapsulate DTX and got a small-sized polymeric micelle (SPM); meanwhile we functionalized the SPM’s surface with TAT peptide (TAT-PM) for a higher permeability. The diameters of both SPM and TAT-PM were in the range of 15–26 nm. In vitro experiments demonstrated that TAT-PM inhibited Capan-2 Luc PDAC cells growth more efficiently and induced more apoptosis compared to SPM and Duopafei. The in vivo therapeutic efficiencies of SPM and TAT-PM compared to free DTX was investigated on the orthotopic transplantation model of Capan-2 Luc. SPM exerted better therapeutic efficiency than free DTX, however, TAT-PM didn’t outperformed SPM. Overall, these results disclosed that SPM could represent a new therapeutic approach against pancreatic cancer, but its permeability to PDAC was not the only decisive factor.
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Affiliation(s)
- Yunfei Li
- State Key Laboratory of Bioactive Substance and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100050, China.
| | - Peiran Li
- Surgical Department, the Affiliated Hospital of Yanbian University, Yanji 133000, China.
| | - Mingji Jin
- State Key Laboratory of Bioactive Substance and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100050, China.
| | - Changgao Jiang
- Surgical Department, the Affiliated Hospital of Yanbian University, Yanji 133000, China.
| | - Zhonggao Gao
- State Key Laboratory of Bioactive Substance and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100050, China.
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Qu MH, Zeng RF, Fang S, Dai QS, Li HP, Long JT. Liposome-based co-delivery of siRNA and docetaxel for the synergistic treatment of lung cancer. Int J Pharm 2014; 474:112-22. [DOI: 10.1016/j.ijpharm.2014.08.019] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 08/02/2014] [Accepted: 08/14/2014] [Indexed: 11/29/2022]
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Docetaxel loaded chitosan nanoparticles: Formulation, characterization and cytotoxicity studies. Int J Biol Macromol 2014; 69:546-53. [DOI: 10.1016/j.ijbiomac.2014.06.029] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 05/26/2014] [Accepted: 06/13/2014] [Indexed: 11/18/2022]
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Maya S, Sarmento B, Lakshmanan VK, Menon D, Seabra V, Jayakumar R. Chitosan cross-linked docetaxel loaded EGF receptor targeted nanoparticles for lung cancer cells. Int J Biol Macromol 2014; 69:532-41. [DOI: 10.1016/j.ijbiomac.2014.06.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/16/2014] [Accepted: 06/05/2014] [Indexed: 12/28/2022]
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Preparation and evaluation of 17-allyamino-17-demethoxygeldanamycin (17-AAG)-loaded poly(lactic acid-co-glycolic acid) nanoparticles. Arch Pharm Res 2014; 38:734-41. [PMID: 24824337 DOI: 10.1007/s12272-014-0404-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 04/22/2014] [Indexed: 10/25/2022]
Abstract
In the present study, we developed the novel 17-allyamino-17-demethoxygeldanamycin (17-AAG)-loaded poly(lactic acid-co-glycolic acid) (PLGA) nanoparticles (NPs) using the combination of sodium lauryl sulfate and poloxamer 407 as the anionic and non-ionic surfactant for stabilization. The PLGA NPs were prepared by emulsification/solvent evaporation method. Both the drug/polymer ratio and phase ratio were 1:10 (w/w). The optimized formulation of 17-AAG-loaded PLGA NPs had a particle size and polydispersity index of 151.6 ± 2.0 and 0.152 ± 0.010 nm, respectively, which was further supported by TEM image. The encapsulation efficiency and drug loading capacity were 69.9 and 7.0%, respectively. In vitro release study showed sustained release. When in vitro release data were fitted to Korsmeyer-Peppas model, the n value was 0.468, which suggested that the drug was released by anomalous or non-Fickian diffusion. In addition, 17-AAG-loaded PLGA NPs in 72 h, displayed approximately 60% cell viability reduction at 10 µg/ml 17-AAG concentration, in MCF-7 cell lines, indicating sustained release from NPs. Therefore, our results demonstrated that incorporation of 17-AAG into PLGA NPs could provide a novel effective nanocarrier for the treatment of cancer.
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Li Y, Jin M, Shao S, Huang W, Yang F, Chen W, Zhang S, Xia G, Gao Z. Small-sized polymeric micelles incorporating docetaxel suppress distant metastases in the clinically-relevant 4T1 mouse breast cancer model. BMC Cancer 2014; 14:329. [PMID: 24885518 PMCID: PMC4023534 DOI: 10.1186/1471-2407-14-329] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 05/02/2014] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The small size of ultra-small nanoparticles makes them suitable for lymphatic delivery, and many recent studies have examined their role in anti-metastasis therapy. However, the anti-metastatic efficacy of small-sized nanocarriers loaded with taxanes such as docetaxel has not yet been investigated in malignant breast cancer. METHODS We encapsulated docetaxel using poly(D,L-lactide)1300-b-(polyethylene glycol-methoxy)2000 (mPEG2000-b-PDLLA1300) to construct polymeric micelles with a mean diameter of 16.76 nm (SPM). Patient-like 4T1/4T1luc breast cancer models in Balb/c mice, with resected and unresected primary tumors, were used to compare the therapeutic efficacies of SPM and free docetaxel (Duopafei) against breast cancer metastasis using bioluminescent imaging, lung nodule examination, and histological examination. RESULT SPM showed similar efficacy to Duopafei in terms of growth suppression of primary tumors, but greater chemotherapeutic efficacy against breast cancer metastasis. In addition, lung tissue inflammation was decreased in the SPM-treated group, while many tumor cells and neutrophils were found in the Duopafei-treated group. CONCLUSION Small-sized mPEG2000-b-PDLLA1300 micelles could provide an enhanced method of docetaxel delivery in breast cancer metastasis, and may represent a valid chemotherapeutic strategy in breast cancer patients with resected primary tumors.
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Affiliation(s)
- Yunfei Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, PR China
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, PR China
| | - Mingji Jin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, PR China
| | - Shuai Shao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, PR China
- Pharmacy School, Yanbian University, Yanji 133000, PR China
| | - Wei Huang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, PR China
| | - Feifei Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, PR China
| | - Wei Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, PR China
| | - Shenghua Zhang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, PR China
| | - Guimin Xia
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, PR China
| | - Zhonggao Gao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xiannongtan Street, Beijing 100050, PR China
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Huang X, Liu X, Liu S, Zhang A, Lu Q, Kaplan DL, Zhu H. Biomineralization regulation by nano-sized features in silk fibroin proteins: Synthesis of water-dispersible nano-hydroxyapatite. J Biomed Mater Res B Appl Biomater 2014; 102:1720-9. [DOI: 10.1002/jbm.b.33157] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 02/28/2014] [Accepted: 03/13/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaowei Huang
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering, Soochow University; Suzhou 215123 People's Republic of China
| | - Xi Liu
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering, Soochow University; Suzhou 215123 People's Republic of China
| | - Shanshan Liu
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering, Soochow University; Suzhou 215123 People's Republic of China
| | - Aili Zhang
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering, Soochow University; Suzhou 215123 People's Republic of China
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk; College of Textile and Clothing Engineering, Soochow University; Suzhou 215123 People's Republic of China
- Jiangsu Province Key Laboratory of Stem Cell Research; Soochow University; Suzhou 215006 People's Republic of China
| | - David L. Kaplan
- Department of Biomedical Engineering; Tufts University; Medford Massachusetts 02155
| | - Hesun Zhu
- Research Center of Materials Science, Beijing Institute of Technology; Beijing 100081 People's Republic of China
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Bu X, Zhu T, Ma Y, Shen Q. Co-administration with cell penetrating peptide enhances the oral bioavailability of docetaxel-loaded nanoparticles. Drug Dev Ind Pharm 2014; 41:764-71. [PMID: 24669977 DOI: 10.3109/03639045.2014.902465] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This study proposes a novel docetaxel (DTX) cyclodextrin inclusion-loaded poly (lactic-co-glycolic acid) (PLGA) nanoparticles (D-CNPs) system with cell penetrating peptide (CPP), and evaluates its potential for oral administration of DTX. Heptaarginine (R7) was used as the CPP. D-CNPs were prepared by the double-emulsification method. The mean particle size and zeta potential of the resulting D-CNPs were 198.7 ± 12.56 nm and -27.25 ± 4.62 mV, respectively, and their mean encapsulation efficiency and drug loading were 80.35 ± 6.37% and 1.02 ± 0.15%, respectively. The morphology of the D-CNPs was observed by scanning electron microscope (SEM) and transmission electron microscope (TEM). The release behavior of the D-CNPs was studied by using the dialysis method. The relative bioavailability of D-CNPs and D-CNPs co-administered with R7 was enhanced about 5.57- and 9.43-fold, respectively, compared with the free DTX suspension. Furthermore, D-CNPs with R7 displayed maximum cytotoxicity against MCF-7 cells in MTT assay. D-CNPs co-administered with R7 showed markedly higher fluorescence intensity than D-CNPs without CPP. The results suggest that the D-CNPs co-administered with R7 could be a potential delivery system with excellent therapeutic efficacy for targeting the drugs to cancer cells.
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Affiliation(s)
- Xiangyuan Bu
- School of Pharmacy, Shanghai Jiao Tong University , Shanghai , China
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43
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Youm I, Agrahari V, Murowchick JB, Youan BBC. Uptake and cytotoxicity of docetaxel-loaded hyaluronic acid-grafted oily core nanocapsules in MDA-MB 231 cancer cells. Pharm Res 2014; 31:2439-52. [PMID: 24643931 DOI: 10.1007/s11095-014-1339-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 02/13/2014] [Indexed: 12/15/2022]
Abstract
PURPOSE It is hypothesized that docetaxel (Doc)-loaded hyaluronic acid (HA)-polyethylene glycol/poly(ε-caprolactone)-grafted oily core nanocapsules (NCs) can enhance the drug cytotoxicity and uptake in CD44 expressing breast cancer (BC) cells (MDA-MB 231). METHODS NCs were prepared, optimized and characterized by dynamic light scattering, transmission electron microscopy (TEM), and powder X-ray diffraction (PXRD). In vitro cytotoxicity tests [MTS, level of reactive oxygen species (ROS) and level of reduced glutathione (GSH)] were performed in BC cells. The contribution of CD44 to the NCs cellular uptake was elucidated using an anti CD44 antibody blockage and a CD44 negative NIH3T3 cell line. RESULTS The optimum formulation of Doc-loaded HA oily core NCs had respective mean diameter, polydispersity, and drug encapsulation efficiency of 224.18 nm, 0.32, and 60.38%. The NCs appeared spherical with low drug crystallinity, while the drug release data fitted to first order equation. Compared to that of ungrafted NCs, the cytotoxicity of Doc-loaded HA-grafted NCs was significantly enhanced (p<0.05). A decrease of the intracellular level of ROS was reversely correlated with that of GSH. Interestingly, the cellular internalization of HA-grafted NCs mediated CD44 was dramatically enhanced (3 to 4-fold) with respect to the absence of specific biomarker or targeting ligand. CONCLUSIONS The use of HA-grafted NCs enhanced the selective drug payload, cytotoxicity and uptake in MDA-MB 231 cells. Therefore, it could be a promising template for safe and effective delivery of Doc and similar chemotherapeutic agents in cancer cells.
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Affiliation(s)
- Ibrahima Youm
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics, Division of Pharmaceutical Sciences, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, Missouri, 64108, USA
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Improved anti-tumor efficiency against prostate cancer by docetaxel-loaded PEG-PCL micelles. ACTA ACUST UNITED AC 2014; 34:66-75. [DOI: 10.1007/s11596-014-1233-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 12/13/2013] [Indexed: 01/17/2023]
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Jiang F, Wang DP, Ye S, Zhao X. Strontium-substituted, luminescent and mesoporous hydroxyapatite microspheres for sustained drug release. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:391-400. [PMID: 24402509 DOI: 10.1007/s10856-013-5081-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 10/21/2013] [Indexed: 06/03/2023]
Abstract
The multifunctional strontium (Sr)-substituted hydroxyapatite microsphere was prepared via hydrothermal method, in which the luminescent and controlled drug release functions can be realized. The structure and morphology of the as-prepared microspheres were studied by using XRD, FTIR, SEM, TEM, HR-TEM, BET method. The optical properties was investigated by using photoluminescence (PL) and XPS measurement. Then, the as-prepared multifunctional microspheres were performed as a drug delivery carrier using vancomycin as a model drug. The experimental results show that the composition, morphology, luminescent properties and drug storage/release behaviour were obviously influenced by the amount of Sr. The microspheres with Sr(2+)/(Ca(2+) + Sr(2+)) = 0.3 of Sr substitution showed the maximum specific surface area, best pore structure and strongest PL intensity. All the samples presented remarkable sustained drug release kinetics. In addition, the PL intensity of SrHA in the drug delivery system increased with the cumulative release time (amount) of vancomycin, which would make the drug release might be possibly tracked by the change of the luminescent intensity. Our study indicated a potential prospect that the fabricated multifunctional SrHA mesoporous microspheres might be applied in the field of bone regeneration and drug delivery.
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Affiliation(s)
- Fei Jiang
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, China
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Raemdonck K, Martens TF, Braeckmans K, Demeester J, De Smedt SC. Polysaccharide-based nucleic acid nanoformulations. Adv Drug Deliv Rev 2013; 65:1123-47. [PMID: 23680381 DOI: 10.1016/j.addr.2013.05.002] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 04/24/2013] [Accepted: 05/03/2013] [Indexed: 12/24/2022]
Abstract
Therapeutic application of nucleic acids requires their encapsulation in nanosized carriers that enable safe and efficient intracellular delivery. Before the desired site of action is reached, drug-loaded nanoparticles (nanomedicines) encounter numerous extra- and intracellular barriers. Judicious nanocarrier design is highly needed to stimulate nucleic acid delivery across these barriers and maximize the therapeutic benefit. Natural polysaccharides are widely used for biomedical and pharmaceutical applications due to their inherent biocompatibility. At present, there is a growing interest in applying these biopolymers for the development of nanomedicines. This review highlights various polysaccharides and their derivatives, currently employed in the design of nucleic acid nanocarriers. In particular, recent progress made in polysaccharide-assisted nucleic acid delivery is summarized and the specific benefits that polysaccharides might offer to improve the delivery process are critically discussed.
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Jelínek M, Balušíková K, Kopperová D, Nĕmcová-Fürstová V, Šrámek J, Fidlerová J, Zanardi I, Ojima I, Kovář J. Caspase-2 is involved in cell death induction by taxanes in breast cancer cells. Cancer Cell Int 2013; 13:42. [PMID: 23672670 PMCID: PMC3685568 DOI: 10.1186/1475-2867-13-42] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 05/15/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We studied the role of caspase-2 in apoptosis induction by taxanes (paclitaxel, novel taxane SB-T-1216) in breast cancer cells using SK-BR-3 (nonfunctional p53, functional caspase-3) and MCF-7 (functional p53, nonfunctional caspase-3) cell lines. RESULTS Both taxanes induced apoptosis in SK-BR-3 as well as MCF-7 cells. Caspase-2 activity in SK-BR-3 cells increased approximately 15-fold within 48 h after the application of both taxanes at the death-inducing concentration (100 nM). In MCF-7 cells, caspase-2 activity increased approximately 11-fold within 60 h after the application of taxanes (300 nM). Caspase-2 activation was confirmed by decreasing levels of procaspase-2, increasing levels of cleaved caspase-2 and the cleavage of caspase-2 substrate golgin-160. The inhibition of caspase-2 expression using siRNA increased the number of surviving cells more than 2-fold in MCF-7 cells, and at least 4-fold in SK-BR-3 cells, 96 h after the application of death-inducing concentration of taxanes. The inhibition of caspase-2 expression also resulted in decreased cleavage of initiator caspases (caspase-8, caspase-9) as well as executioner caspases (caspase-3, caspase-7) in both cell lines after the application of taxanes. In control cells, caspase-2 seemed to be mainly localized in the nucleus. After the application of taxanes, it was released from the nucleus to the cytosol, due to the long-term disintegration of the nuclear envelope, in both cell lines. Taxane application led to some formation of PIDDosome complex in both cell lines within 24 h after the application. After taxane application, p21WAF1/CIP1 expression was only induced in MCF-7 cells with functional p53. However, taxane application did not result in a significant increase of PIDD expression in either SK-BR-3 or MCF-7 cells. The inhibition of RAIDD expression using siRNA did not affect the number of surviving SK-BR-3 and MCF-7 cells after taxane application at all. CONCLUSION Caspase-2 is required, at least partially, for apoptosis induction by taxanes in tested breast cancer cells. We suggest that caspase-2 plays the role of an apical caspase in these cells. Caspase-2 seems to be activated via other mechanism than PIDDosome formation. It follows the release of caspase-2 from the nucleus to the cytosol.
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Abstract
Prostate cancer (PCa) research in China has been on a rocketing trend in recent years. The first genome-wide association study (GWAS) in China identified two new PCa risk associated single nucleotide polymorphisms (SNPs). Next generation sequencing is beginning to be used, yielding novel findings: gene fusions, long non-coding RNAs and other variations. Mechanisms of PCa progression have been illustrated while various diagnosis biomarkers have been investigated extensively. Personalized therapy based on genetic factors, nano-medicine and traditional Chinese medicine has been the focus of experimental therapeutic research for PCa. This review intends to shed light upon the recent progress in PCa research in China and points out the possible breakthroughs in the future.
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Gao X, Luo Y, Wang Y, Pang J, Liao C, Lu H, Fang Y. Prostate stem cell antigen-targeted nanoparticles with dual functional properties: in vivo imaging and cancer chemotherapy. Int J Nanomedicine 2012; 7:4037-51. [PMID: 22888241 PMCID: PMC3415325 DOI: 10.2147/ijn.s32804] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Indexed: 01/13/2023] Open
Abstract
Background: We designed dual-functional nanoparticles for in vivo application using a modified electrostatic and covalent layer-by-layer assembly strategy to address the challenge of assessment and treatment of hormone-refractory prostate cancer. Methods: Core-shell nanoparticles were formulated by integrating three distinct functional components, ie, a core constituted by poly(D,L-lactic-co-glycolic acid), docetaxel, and hydrophobic superparamagnetic iron oxide nanocrystals (SPIONs), a multilayer shell formed by poly(allylamine hydrochloride) and two different sized poly(ethylene glycol) molecules, and a single-chain prostate stem cell antigen antibody conjugated to the nanoparticle surface for targeted delivery. Results: Drug release profiles indicated that the dual-function nanoparticles had a sustained release pattern over 764 hours, and SPIONs could facilitate the controlled release of the drug in vitro. The nanoparticles showed increased antitumor efficiency and enhanced magnetic resonance imaging in vitro through targeted delivery of docetaxel and SPIONs to PC3M cells. Moreover, in nude mice bearing PC3M xenografts, the nanoparticles provided MRI negative contrast enhancement, as well as halting and even reversing tumor growth during the 76-day study duration, and without significant systemic toxicity. The lifespan of the mice treated with these targeted dual-function nanoparticles was significantly increased (Chi-square = 22.514, P < 0.0001). Conclusion: This dual-function nanomedical platform may be a promising candidate for tumor imaging and targeted delivery of chemotherapeutic agents in vivo.
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Affiliation(s)
- Xin Gao
- Department of Urology, The Third Affiliated Hospital, Sun Yat-Sen University, Tianhe Road 600, Guangzhou, 510630, China.
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Zhao P, Astruc D. Docetaxel nanotechnology in anticancer therapy. ChemMedChem 2012; 7:952-72. [PMID: 22517723 DOI: 10.1002/cmdc.201200052] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 03/16/2012] [Indexed: 01/05/2023]
Abstract
Taxanes have been recognized as a family of very efficient anticancer drugs, but the formulation in use for the two main taxanes-Taxol for paclitaxel and Taxotere for docetaxel-have shown dramatic side effects. Whereas several new formulations for paclitaxel have recently appeared, such as Abraxane and others currently in various phases of clinical trials, there is no new formulation in clinical trials for the other main taxane, docetaxel, except BIND-014, a polymeric nanoparticle, which recently entered phase I clinical testing. Therefore, we review herein the state of the art and recent abundance in published results of academic approaches toward nanotechnology-based drug-delivery systems containing nanocarriers and targeting agents for docetaxel formulations. These efforts will certainly enrich the spectrum of docetaxel treatments in the near future. Taxotere's systemic toxicity, low water solubility, and other side effects are significant problems that must be overcome. To avoid the limitations of docetaxel in clinical use, researchers have developed efficient drug-delivery assemblies that consist of a nanocarrier, a targeting agent, and the drug. A wide variety of such engineered nanosystems have been shown to transport and eventually vectorize docetaxel more efficiently than Taxotere in vitro, in vivo, and in pre-clinical administration. Recent progress in drug vectorization has involved a combined therapy and diagnostic ("theranostic") approach in a single drug-delivery vector and could significantly improve the efficiency of such an anticancer drug as well as other drug types.
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Affiliation(s)
- Pengxiang Zhao
- ISM, UMR CNRS No. 5255, Univ. Bordeaux, 33405 Talence Cedex, France
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