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Elbardisy B, Boraie N, Galal S. Tadalafil Nanoemulsion Mists for Treatment of Pediatric Pulmonary Hypertension via Nebulization. Pharmaceutics 2022; 14:pharmaceutics14122717. [PMID: 36559211 PMCID: PMC9784672 DOI: 10.3390/pharmaceutics14122717] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/20/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Oral tadalafil (TD) proved promising in treating pediatric pulmonary arterial hypertension (PAH). However, to ensure higher efficacy and reduce the systemic side effects, targeted delivery to the lungs through nebulization was proposed as an alternative approach. This poorly soluble drug was previously dissolved in nanoemulsions (NEs). However, the formulations could not resist aqueous dilution, which precluded its dilution with saline for nebulization. Thus, the current study aimed to modify the previous systems into dilutable TD-NEs and assess their suitability for a pulmonary application. In this regard, screening of various excipients was conducted to optimize the former systems; different formulations were selected and characterized in terms of physicochemical properties, nebulization performance, stability following sterilization, and biocompatibility. Results showed that the optimal system comprised of Capmul-MCM-EP:Labrafac-lipophile (1:1) (w/w) as oil, Labrasol:Poloxamer-407 (2:1) (w/w) as surfactant mixture (Smix) and water. The optimum formulation P2TD resisted aqueous dilution, exhibited reasonable drug loading (2.45 mg/mL) and globule size (25.04 nm), acceptable pH and viscosity for pulmonary administration, and could be aerosolized using a jet nebulizer. Moreover, P2TD demonstrated stability following sterilization and a favorable safety profile confirmed by both in-vitro and in-vivo toxicity studies. These favorable findings make P2TD promising for the treatment of pediatric PAH.
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Affiliation(s)
- Bassant Elbardisy
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Institute for Technical Chemistry, Braunschweig University of Technology, Hagenring 30, 38106 Braunschweig, Germany
- Correspondence: or
| | - Nabila Boraie
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Sally Galal
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
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2
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Raychaudhuri R, Pandey A, Hegde A, Abdul Fayaz SM, Chellappan DK, Dua K, Mutalik S. Factors affecting the morphology of some organic and inorganic nanostructures for drug delivery: characterization, modifications, and toxicological perspectives. Expert Opin Drug Deliv 2020; 17:1737-1765. [PMID: 32878492 DOI: 10.1080/17425247.2020.1819237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Introduction: In this review, we aim to highlight the impact of various processes and formulation variables influencing the characteristics of certain surfactant-based nanoconstructs for drug delivery. Areas covered: The review includes the discussion on processing parameters for the preparation of nanoconstructs, especially those made up of surfactants. Articles published in last 15 years (437) were reviewed, 381 articles were selected for data review and most appropriate articles (215) were included in article. Effect of variables such as surfactant concentration and type, membrane additives, temperature, and pH-dependent transitions on morphology has been highlighted along with effect of shape on nanoparticle uptake by cells. Various characterization techniques explored for these nanostructures with respect to size, morphology, lamellarity, distribution, etc., and a separate section on polymeric vesicles and the influence of block copolymers, type of block copolymer, control of block length, interaction of multiple block copolymers on the structure of polymersomes and chimeric nanostructures have been discussed. Finally, applications, modification, degradation, and toxicological aspects of these drug delivery systems have been highlighted. Expert opinion: Parameters influencing the morphology of micelles and vesicles can directly or indirectly affect the efficacy of small molecule cellular internalization as well as uptake in the case of biologicals.[Figure: see text].
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Affiliation(s)
- Ruchira Raychaudhuri
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Abhjieet Pandey
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Aswathi Hegde
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Shaik Mohammad Abdul Fayaz
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education , Manipal, Karnataka State, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University , Bukit Jalil, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney , Broadway, NSW, Australia
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education , Manipal, Karnataka State, India
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Behalo MS, Bloise E, Mele G, Salomone A, Messa F, Carbone L, Mazzetto SE, Lomonaco D. Bio‐based benzoxazines synthesized in a deep eutectic solvent: A greener approach toward vesicular nanosystems. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3818] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mohamed S. Behalo
- Chemistry Department, Faculty of ScienceBenha University P.O. Box 13518, Benha Egypt
| | - Ermelinda Bloise
- Department of Engineering for InnovationUniversity of Salento via Arnesano, 73100 Lecce Italy
| | - Giuseppe Mele
- Department of Engineering for InnovationUniversity of Salento via Arnesano, 73100 Lecce Italy
| | - Antonio Salomone
- Dipartimento di Scienze e Tecnologie Biologiche ed AmbientaliUniversitàdel Salento Prov.le Lecce‐Monteroni, I‐73100, Lecce Italy
| | - Francesco Messa
- Dipartimento di Scienze e Tecnologie Biologiche ed AmbientaliUniversitàdel Salento Prov.le Lecce‐Monteroni, I‐73100, Lecce Italy
| | - Luigi Carbone
- CNR NANOTEC‐Institute of Nanotechnology c/o Campus EcotekneUniversity of Salento via Monteroni, Lecce 73100 Italy
| | - Selma Elaine Mazzetto
- Laboratory of Products and Processes Technology (LPT), Department of Organic and Inorganic ChemistryFederal University of Ceara Fortaleza Brazil
| | - Diego Lomonaco
- Laboratory of Products and Processes Technology (LPT), Department of Organic and Inorganic ChemistryFederal University of Ceara Fortaleza Brazil
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Shah NK, Gupta SK, Wang Z, Meenach SA. Enhancement of macrophage uptake via phosphatidylserine-coated acetalated dextran nanoparticles. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.01.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Balakrishnan B, Joshi N, Thorat K, Kaur S, Chandan R, Banerjee R. A tumor responsive self healing prodrug hydrogel enables synergistic action of doxorubicin and miltefosine for focal combination chemotherapy. J Mater Chem B 2019. [DOI: 10.1039/c9tb00454h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Targeted therapy that facilitates the on-site, on-demand action of drug combinations is a promising approach for combination chemotherapy.
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Affiliation(s)
- Biji Balakrishnan
- Nanomedicine Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Nitin Joshi
- Nanomedicine Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Ketan Thorat
- Nanomedicine Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Shahdeep Kaur
- Nanomedicine Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Rajeet Chandan
- Nanomedicine Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology Bombay
- Mumbai
- India
| | - Rinti Banerjee
- Nanomedicine Laboratory
- Department of Biosciences & Bioengineering
- Indian Institute of Technology Bombay
- Mumbai
- India
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6
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Nanotechnology Enabled Inhalation of Bio-therapeutics for Pulmonary Diseases: Design Considerations and Challenges. CURRENT PATHOBIOLOGY REPORTS 2018. [DOI: 10.1007/s40139-018-0183-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Can nanotechnology hit the spot in aerosol-based drug delivery for lung disorders? Ther Deliv 2018; 9:233-236. [PMID: 29495926 DOI: 10.4155/tde-2017-0112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Pro-apoptotic liposomes-nanobubble conjugate synergistic with paclitaxel: a platform for ultrasound responsive image-guided drug delivery. Sci Rep 2018; 8:2624. [PMID: 29422676 PMCID: PMC5805674 DOI: 10.1038/s41598-018-21084-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 01/24/2018] [Indexed: 01/02/2023] Open
Abstract
Recently, liposomes-microbubble conjugates have emerged as a promising ultrasound (US)-responsive platform for cancer therapeutics. However, these are limited by their size in terms of tumor penetration. Additionally, there have been no attempts to enhance the smartness of such conjugates which have been used only as passive carriers. The present study explores submicron sized (756 ± 180.0 nm), US-responsive, phosphatidylserine (PS)-based paclitaxel-liposomes-nanobubble conjugates (PSPLBC) with an additional pro-apoptotic effect towards enhanced anti-cancer efficacy and image-guidance. The developed PSPLBC underwent cavitation in response to US-trigger, exhibiting in vitro pulsatile release with a 10-fold increase in cellular internalization as compared to control. The PS-containing formulations were found to be pro-apoptotic and exhibited strong synergism between PS and paclitaxel (Combination Index, CI < 0.1). This resulted in significantly high anti-tumor efficacy both in vitro and in vivo conditions (98.3 ± 0.8% tumor growth inhibition, TGI). Significant reduction in tumor proliferation index and MVD, as well as significant increase in apoptosis, were observed for the treated tumor sections. Further, the intravenous (i.v.) administration of PSPLBC enhanced the tumor US-contrast by 2-fold as compared to SonoVue. These results, show the potential of PSPLBC as a promising non-invasive, pro-apoptotic, smart DDS for US-responsive, image-guided cancer therapeutics.
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Garrastazu Pereira G, Lawson AJ, Buttini F, Sonvico F. Loco-regional administration of nanomedicines for the treatment of lung cancer. Drug Deliv 2015; 23:2881-2896. [PMID: 26585837 DOI: 10.3109/10717544.2015.1114047] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Lung cancer poses one of the most significant challenges to modern medicine, killing thousands every year. Current therapy involves surgical resection supplemented with chemotherapy and radiotherapy due to high rates of relapse. Shortcomings of currently available chemotherapy protocols include unacceptably high levels of systemic toxicity and low accumulation of drug at the tumor site. Loco-regional delivery of nanocarriers loaded with anticancer agents has the potential to significantly increase efficacy, while minimizing systemic toxicity to anticancer agents. Local drug administration at the tumor site using nanoparticulate drug delivery systems can reduce systemic toxicities observed with intravenously administered anticancer drugs. In addition, this approach presents an opportunity for sustained delivery of anticancer drug over an extended period of time. Herein, the progress in the development of locally administered nanomedicines for the treatment of lung cancer is reviewed. Administration by inhalation, intratumoral injection and means of direct in situ application are discussed, the benefits and drawbacks of each modality are explored.
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Affiliation(s)
| | - Amanda Jane Lawson
- a Graduate School of Health, University of Technology Sydney , Sydney , Australia and
| | | | - Fabio Sonvico
- b Department of Pharmacy , University of Parma , Parma , Italy
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Kuzmov A, Minko T. Nanotechnology approaches for inhalation treatment of lung diseases. J Control Release 2015; 219:500-518. [PMID: 26297206 DOI: 10.1016/j.jconrel.2015.07.024] [Citation(s) in RCA: 203] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 07/16/2015] [Accepted: 07/21/2015] [Indexed: 02/08/2023]
Abstract
Local administration of therapeutics by inhalation for treatment of lung diseases has the ability to deliver drugs, nucleic acids and peptides specifically to the site of their action and therefore enhance the efficacy of the treatment, limit the penetration of nebulized therapeutic agent(s) into the bloodstream and consequently decrease adverse systemic side effects of the treatment. Nanotechnology allows for a further enhancement of the treatment efficiency. The present review analyzes modern therapeutic approaches of inhaled nanoscale-based pharmaceutics for the detection and treatment of various lung diseases.
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Affiliation(s)
- Andriy Kuzmov
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway 08854, USA
| | - Tamara Minko
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway 08854, USA; Rutgers Cancer Institute of New Jersey, New Brunswick 08903, USA.
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Liu P, Situ JQ, Li WS, Shan CL, You J, Yuan H, Hu FQ, Du YZ. High tolerated paclitaxel nano-formulation delivered by poly (lactic-co-glycolic acid)-g-dextran micelles to efficient cancer therapy. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:855-66. [DOI: 10.1016/j.nano.2015.02.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 02/04/2015] [Accepted: 02/09/2015] [Indexed: 12/31/2022]
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Endogenous lung surfactant inspired pH responsive nanovesicle aerosols: pulmonary compatible and site-specific drug delivery in lung metastases. Sci Rep 2014; 4:7085. [PMID: 25403950 PMCID: PMC4235800 DOI: 10.1038/srep07085] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 10/24/2014] [Indexed: 01/13/2023] Open
Abstract
Concerns related to pulmonary toxicity and non-specificity of nanoparticles have limited their clinical applications for aerosol delivery of chemotherapeutics in lung cancer. We hypothesized that pulmonary surfactant mimetic nanoparticles that offer pH responsive release specifically in tumor may be a possible solution to overcome these issues. We therefore developed lung surfactant mimetic and pH responsive lipid nanovesicles for aerosol delivery of paclitaxel in metastatic lung cancer. 100-200 nm sized nanovesicles showed improved fusogenicity and cytosolic drug release, specifically with cancer cells, thereby resulting in improved cytotoxicity of paclitaxel in B16F10 murine melanoma cells and cytocompatibility with normal lung fibroblasts (MRC 5). The nanovesicles showed airway patency similar to that of endogenous pulmonary surfactant and did not elicit inflammatory response in alveolar macrophages. Their aerosol administration while significantly improving the biodistribution of paclitaxel in comparison to Taxol (i.v.), also showed significantly higher metastastes inhibition (~75%) in comparison to that of i.v. Taxol and i.v. Abraxane. No signs of interstitial pulmonary fiborisis, chronic inflammation and any other pulmonary toxicity were observed with nanovesicle formulation. Overall, these nanovesicles may be a potential platform to efficiently deliver hydrophobic drugs as aerosol in metastatic lung cancer and other lung diseases, without causing pulmonary toxicity.
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Luo S, Tao Y, Tang R, Wang R, Ji W, Wang C, Zhao Y. Amphiphilic block copolymers bearing six-membered ortho ester ring in side chains as potential drug carriers: synthesis, characterization, andin vivotoxicity evaluation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:965-84. [DOI: 10.1080/09205063.2014.916095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Joshi N, Shanmugam T, Deshmukh A, Banerjee R. Apoptotic cascade inspired lipid nanovesicles show synergism with encapsulated paclitaxel in chemoresistant colon carcinoma. Nanomedicine (Lond) 2014; 9:1789-805. [PMID: 24702739 DOI: 10.2217/nnm.13.182] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
UNLABELLED Inspired from the apoptotic cascade, we developed phosphatidylserine (PS)-based proapoptotic lipid nanovesicles, capable of bypassing drug resistance and exhibiting synergistic anticancer activity with encapsulated paclitaxel in chemoresistant human colon adenocarcinoma (HCT-15). MATERIALS & METHODS Nanovesicles were developed and evaluated both in vitro and in vivo for their proapoptotic activity, synergism with encapsulated paclitaxel and ability to bypass drug resistance. RESULTS 110 ± 7 nm sized nanovesicles were found to be proapoptotic and synergistic with paclitaxel, and bypassed drug resistance. The formulation, with synergistic inputs from PS and paclitaxel, downregulated Ki-67 and inhibited angiogenesis leading to apoptosis by activating caspase-3 and downregulating Bcl-2, resulting in DNA fragmentation. The nanovesicles, while increasing the systemic circulation time of paclitaxel by 6.9-fold reduced systemic toxic effects of paclitaxel and were found to be nonimmunogenic. CONCLUSION These results suggest the therapeutic potential of PS-based proapoptotic nanovesicles encapsulating paclitaxel in chemoresistant human colon carcinoma.
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Affiliation(s)
- Nitin Joshi
- Department of Biosciences & Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Joshi N, Saha R, Shanmugam T, Balakrishnan B, More P, Banerjee R. Carboxymethyl-chitosan-tethered lipid vesicles: hybrid nanoblanket for oral delivery of paclitaxel. Biomacromolecules 2013; 14:2272-82. [PMID: 23721348 DOI: 10.1021/bm400406x] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We describe the development and evaluation of a hybrid lipopolymeric system comprising carboxymethyl chitosan (CMC), covalently tethered to phosphatidylethanolamine units on the surface of lipid nanovesicles, for oral delivery of paclitaxel. The bioploymer is intended to act as a blanket, thereby shielding the drug from harsh gastrointestinal conditions, whereas the lipid nanovesicle ensures high encapsulation efficiency of paclitaxel and its passive targeting to tumor. CMC-tethered nanovesicles (LN-C-PTX) in the size range of 200-300 nm improved the gastrointestinal resistance and mucoadhesion properties as compared with unmodified lipid nanovesicles (LN-PTX). Conjugation of CMC did not compromise the cytotoxic potential of paclitaxel yet facilitated the interaction and uptake of the nanovesicles by murine melanoma (B16F10) cells through an ATP-dependent process. CMC-conjugated nanovesicles, upon oral administration in rats, improved the plasma concentration profile of paclitaxel, with 1.5 fold increase in its bioavailability and 5.5 folds increase in elimination half life in comparison with Taxol. We also found that CMC in addition to providing a gastric resistant coating also imparted stealth character to the nanovesicles, thereby reducing their reticuloendothelial system (RES)-mediated uptake by liver and spleen and bypassing the need for PEGylation. In vivo efficacy in subcutaneous model of B16F10 showed significantly improved tumor growth inhibition and survival with CMC-tethered nanovesicles as compared with unmodified nanovesicles, both administered orally. LN-C-PTX exhibited therapeutic efficacy comparable to Taxol and Abraxane and also showed reduced toxicity and improved survival. Overall, these results suggest the therapeutic potential of CMC tethered nanovesicles as a platform for oral administration of paclitaxel and also unravel the ability of CMC to impart stealth character to the nanoparticles, thereby preventing their RES clearance.
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Affiliation(s)
- Nitin Joshi
- WRCBB, Department of Biosciences and Bioengineeering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Synthesis and evaluation of a backbone biodegradable multiblock HPMA copolymer nanocarrier for the systemic delivery of paclitaxel. J Control Release 2012; 166:66-74. [PMID: 23262201 DOI: 10.1016/j.jconrel.2012.12.009] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/09/2012] [Accepted: 12/10/2012] [Indexed: 12/16/2022]
Abstract
The performance and safety of current antineoplastic agents, particularly water-insoluble drugs, are still far from satisfactory. For example, the currently widely used Cremophor EL®-based paclitaxel (PTX) formulation exhibits pharmacokinetic concerns and severe side effects. Thus, the concept of a biodegradable polymeric drug-delivery system, which can significantly improve therapeutic efficacy and reduce side effects is advocated. The present work aims to develop a new-generation of long-circulating, biodegradable carriers for effective delivery of PTX. First, a multiblock backbone biodegradable N-(2-hydroxypropyl)methacrylamide(HPMA) copolymer-PTX conjugate (mP-PTX) with molecular weight (Mw) of 335 kDa was synthesized by RAFT (reversible addition-fragmentation chain transfer) copolymerization, followed by chain extension. In vitro studies on human ovarian carcinoma A2780 cells were carried out to investigate the cytotoxicity of free PTX, HPMA copolymer-PTX conjugate with Mw of 48 kDa (P-PTX), and mP-PTX. The experiments demonstrated that mP-PTX has a similar cytotoxic effect against A2780 cells as free PTX and P-PTX. To further compare the behavior of this new biodegradable conjugate (mP-PTX) with free PTX and P-PTX in vivo evaluation was performed using female nu/nu mice bearing orthotopic A2780 ovarian tumors. Pharmacokinetics study showed that high Mw mP-PTX was cleared more slowly from the blood than commercial PTX formulation and low Mw P-PTX. SPECT/CT imaging and biodistribution studies demonstrated biodegradability as well as elimination of mP-PTX from the body. The tumors in the mP-PTX treated group grew more slowly than those treated with saline, free PTX, and P-PTX (single dose at 20 mg PTX/kg equivalent). Moreover, mice treated with mP-PTX had no obvious ascites and body-weight loss. Histological analysis indicated that mP-PTX had no toxicity in liver and spleen, but induced massive cell death in the tumor. In summary, this biodegradable drug delivery system has a great potential to improve performance and safety of current antineoplastic agents.
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Thakur A, Joshi N, Shanmugam T, Banerjee R. Proapoptotic miltefosine nanovesicles show synergism with paclitaxel: Implications for glioblastoma multiforme therapy. Cancer Lett 2012; 334:274-83. [PMID: 22935677 DOI: 10.1016/j.canlet.2012.08.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 08/13/2012] [Accepted: 08/20/2012] [Indexed: 11/19/2022]
Abstract
Hexadecylphosphocholine (HePC) or miltefosine based proapoptotic lipid nanovesicles encapsulating paclitaxel for synergistic anticancer effect of paclitaxel and miltefosine in chemoresistant human glioblastoma multiforme (U-87 MG) overexpressing multidrug resistance 1 (MDR1) gene product P-glycoprotein (P-gp), were developed in this study. The nanovesicles had 100-200nm size and a negative zeta potential (∼-25mV) and optimized for miltefosine content based on their physiochemical properties. With a high encapsulation efficiency of 94%, the nanovesicles showed sustained release of paclitaxel in nasal fluid and triggered release in the cerebrospinal fluid. Synergistic action of paclitaxel and miltefosine was observed with a low IC50 of 162±5nM. The nanovesicle also overcame drug resistance and showed ATP dependent uptake via clathrin mediated pathway in glioblastoma cells. An improved therapeutic efficacy in comparison to Taxol®, the current clinical formulation of paclitaxel was observed. Efficient brain uptake of the nanovesicles upon intranasal administration was observed in vivo and the nanovesicles were also found to be able to cross blood brain barrier. These studies therefore suggest the therapeutic potential of proapoptotic lipid nanovesicles and their feasibility for intranasal administration in the treatment of chemoresistant glioblastoma.
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Affiliation(s)
- Ankita Thakur
- WRCBB, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
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Joshi N, Kaviratna A, Banerjee R. Multi trigger responsive, surface active lipid nanovesicle aerosols for improved efficacy of paclitaxel in lung cancer. Integr Biol (Camb) 2012; 5:239-48. [DOI: 10.1039/c2ib20122d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Nitin Joshi
- WRCBB, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India. Fax: +91-22 2572 3480; Tel: +91-22 2576 7868
| | - Anubhav Kaviratna
- WRCBB, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India. Fax: +91-22 2572 3480; Tel: +91-22 2576 7868
| | - Rinti Banerjee
- WRCBB, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India. Fax: +91-22 2572 3480; Tel: +91-22 2576 7868
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