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Ghosh P, Patari N, Manisha C, Basavan D, Petchiappan V, Justin A. Reversal mechanism of multidrug-resistant cancer cells by lectin as chemo-adjuvant and targeted therapy- a systematic review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 123:155205. [PMID: 37980807 DOI: 10.1016/j.phymed.2023.155205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/04/2023] [Accepted: 11/08/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Cancer is characterized as the leading cause of death, and the susceptibility of cancer cells to develop resistance due to long-term exposure to complementary chemotherapeutic treatment is referred to as multidrug resistance cancer cells (MDRC), which is a significant obstacle in the treatment of malignancies. Since complementary medicine lost its effectiveness, the development of potential alternative and novel therapeutic approaches has been elevated to a top priority in recent years. In this context, a bioactive protein lectin from plant and animal sources exhibits an invaluable source of anticancer agents with vast therapeutic potential. PURPOSE This manuscript's primary purpose is to enlighten the evidence-based (from 1986 to 2022) possible molecular mechanism of alternative treatment approaches using lectins over the complementary medicines used for cancer treatment. METHODS The PRISMA rules have been followed properly and qualitative and quantitative data are synthesized systematically. Articles were identified based on Clinical and preclinical reports published on lectin that investigated the in-depth cellular mechanisms, of reverse drug integrative oncology, as a nano-carried targeted delivery. Articles were systematically screened from 1986 to 2022 and selected based on electronic database searches, Medline (PubMed), Google Scholar, Web of Science, Encyclopaedias, Scopus, and ClinicalTrials.gov database. RESULTS The search turned up 4,212 publications from 38 different nations, of which 170 reference articles were used in our analysis, in 16 combination therapy and their mode of action, and 27 clinical trial studies including dosage and mechanism of action were included. Reports from the 30 lectins belonging to 28 different families have been included. The reversal mechanism of lectin and alternative therapy against MDRC is critically screened and according to a few clinical and preclinical reports, lectin can suppress the overexpressing genes like P-53, EGFR, and P-gp, MRP, and ABC transporter proteins associated with intracellular transportation of drugs. Since, the drug efflux mechanism leads to MDRC, in this phenomenon, lectin plays a key role in reversing the efflux mechanism. Few preclinical reports have mentioned that lectin shows synergism in combination with complementary medicine and as a nano drug carrier helps to deliver to the targeted site. CONCLUSION We have discussed the alternative therapy using lectin and an in-depth insight into the reversal drug resistance mechanisms to combat MDRC cancer, enhance the efficacy, reduce toxicity and adverse events, and ensure targeted delivery, and their application in the field of cancer diagnosis and prognosis has been discussed. However, further investigation is necessary in drug development and clinical trials which could be helpful to elaborate the reversal mechanism and unlock newer treatment modalities in MDRC cancer.
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Affiliation(s)
- Puja Ghosh
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu 643 001, India
| | - Niloy Patari
- Lane Department of Computer Science and Electrical Engineering, West Virginia University, USA
| | - Chennu Manisha
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu 643 001, India
| | - Duraiswamy Basavan
- Department of Pharmacognosy, JSS College of Pharmacy, Najwal, Vijaypur, Jammu 184 120, India
| | - Velammal Petchiappan
- Department of General Medicine, PSG Institute of Medical Sciences & Research, Coimbatore, Tamil Nadu 641 004, India
| | - Antony Justin
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil Nadu 643 001, India.
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Gopalakrishnan S, Thomas R, Sedaghat S, Krishnakumar A, Khan S, Meyer T, Ajieren H, Nejati S, Wang J, Verma MS, Irazoqui P, Rahimi R. Smart capsule for monitoring inflammation profile throughout the gastrointestinal tract. BIOSENSORS & BIOELECTRONICS: X 2023; 14:100380. [PMID: 37799507 PMCID: PMC10552446 DOI: 10.1016/j.biosx.2023.100380] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Inflammatory bowel disease (IBD) has become alarmingly prevalent in the last two decades affecting 6.8 million people worldwide with a starkly high relapse rate of 40% within 1 year of remission. Existing visual endoscopy techniques rely on subjective assessment of images that are error-prone and insufficient indicators of early-stage IBD, rendering them unsuitable for frequent and quantitative monitoring of gastrointestinal health necessary for detecting regular relapses in IBD patients. To address these limitations, we have implemented a miniaturized smart capsule (2.2 cm × 11 mm) that allows monitoring reactive oxygen species (ROS) levels as a biomarker of inflammation for quantitative and frequent profiling of inflammatory lesions throughout the gastrointestinal tract. The capsule is composed of a pH and oxidation reduction potential (ORP) sensor to track the capsule's location and ROS levels throughout the gastrointestinal tract, respectively, and an optimized electronic interface for wireless sensing and data communication. The designed sensors provided a linear and stable performance within the physiologically relevant range of the GI tract (pH: 1-8 and ORP: -500 to +500 mV). Additionally, systematic design optimization of the wireless interface electronics offered an efficient sampling rate of 10 ms for long-running measurements up to 48 h for a complete evaluation of the entire gastrointestinal tract. As a proof-of-concept, the capsule the capsule's performance in detecting inflammation risks was validated by conducting tests on in vitro cell culture conditions, simulating healthy and inflamed gut-like environments. The capsule presented here achieves a new milestone in addressing the emerging need for smart ingestible electronics for better diagnosis and treatment of digestive diseases.
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Affiliation(s)
- Sarath Gopalakrishnan
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
| | - Rithu Thomas
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Sotoudeh Sedaghat
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Akshay Krishnakumar
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
| | - Sadid Khan
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Trevor Meyer
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Hans Ajieren
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Sina Nejati
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Jiangshan Wang
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
- Department of Agricultural and Biological Engineering, West Lafayette, IN, 47907, USA
| | - Mohit S. Verma
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
- Department of Agricultural and Biological Engineering, West Lafayette, IN, 47907, USA
- Weldon School of Biomedical Engineering, West Lafayette, IN, 47907, USA
| | - Pedro Irazoqui
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Rahim Rahimi
- School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Birck Nanotechnology Center, Purdue University, West Lafayette, IN, 47907, USA
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA
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Mustafa WW, Fletcher J, Khoder M, Alany RG. Solid Dispersions of Gefitinib Prepared by Spray Drying with Improved Mucoadhesive and Drug Dissolution Properties. AAPS PharmSciTech 2022; 23:48. [PMID: 34984564 PMCID: PMC8816420 DOI: 10.1208/s12249-021-02187-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/29/2021] [Indexed: 12/18/2022] Open
Abstract
Gefitinib is a tyrosine kinase inhibitor that is intended for oral administration yet suffers poor bioavailability along with undesirable side effects. To enhance its solubility and allow colon targeting, gefitinib (ZD) and blends of different ratios of polymers (ternary dispersion) were prepared in organic solution, and solid dispersions were generated employing the spray drying (SD) technique. The methylmethacrylate polymer Eudragit S 100 was incorporated for colon targeting; polyvinylpyrrolidone (PVP) and hydroxypropyl methyl cellulose (HPMC) were utilised to improve the solubility of ZD. SEM, DSC, XRPD, FT-IR, dissolution and cytotoxicity studies were undertaken to characterise and evaluate the developed formulations. SEM images revealed that the rod-shaped crystals of ZD were transformed into collapsed spheres with smaller particle size in the spray-dried particles. DSC, FTIR and XRPD studies showed that ZD loaded in the spray-dried dispersions was amorphous. ZD dissolution and release studies revealed that while a significant (P < 0.05) increase in the ZD dissolution and release was observed from HPMC-based solid dispersion at pH 7.2 (up to 95% in 15 h), practically no drug was released at pH 1.2 and pH 6.5. Furthermore, the HPMC-based solid dispersions displayed enhanced mucoadhesive properties compared with PVP-based ones. Interestingly, cell viability studies using the neutral red assay showed that PVP and HPMC-based solid dispersions had no additional inhibitory effect on Caco-2 cell line compared to the pure drug.
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Ashique S, Sandhu NK, Chawla V, Chawla PA. Targeted Drug Delivery: Trends and Perspectives. Curr Drug Deliv 2021; 18:1435-1455. [PMID: 34151759 DOI: 10.2174/1567201818666210609161301] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/03/2021] [Accepted: 04/07/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Due to various limitations in conventional drug delivery system, it is important to focus on the target-specific drug delivery system where we can deliver the drug without any degradation. Among various challenges faced by a formulation scientist, delivering the drug to its right site, in its right dose, is also an important aim. A focused drug transport aims to extend, localize, target and have a safe drug interaction with the diseased tissue. OBJECTIVE The aim of targeted drug delivery is to make the required amount of the drug available at its desired site of action. Drug targeting can be accomplished in a number ways that include enzyme mediation, pH-dependent release, use of special vehicles, receptor targeting among other mechanisms. Intelligently designed targeted drug delivery systems also offer the advantages of a low dose of the drug along with reduced side effects which ultimately improves patient compliance. Incidences of dose dumping and dosage form failure are negligible. A focused drug transport aims to have a safe drug interaction with the diseased tissue. CONCLUSION This review focuses on the available targeting techniques for delivery to the colon, brain and other sites of interest. Overall, the article should make an excellent read for the researchers in this area. Newer drug targets may be identified and exploited for successful drug targeting.
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Affiliation(s)
- Sumel Ashique
- Department of Pharmaceutics, ISF College of Pharmacy, Moga-142001, Punjab, India
| | - Navjot Kaur Sandhu
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga-142001, Punjab, India
| | - Viney Chawla
- University Institute of Pharmaceutical Sciences and Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Pooja A Chawla
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga-142001, Punjab, India
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Kapote DN, Wagner KG. Shellac- a natural carrier for colon targeting of indomethacin using hot melt extrusion. Drug Dev Ind Pharm 2021; 47:748-757. [PMID: 34038307 DOI: 10.1080/03639045.2021.1934863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Indomethacin (IND) is one of the supporting drug candidates for colonic targeting but it belongs to BCS class II category presenting a challenge in optimal targeting at the colonic site. To overcome this challenge, we sought to prepare a pH-dependent soluble ternary solid dispersion (SD) of IND of improved solubility and dissolution rate at the colon without the need for a coating. The current study focuses on the preparation of binary SDs of API (IND) with shellac (SSB 55) and Eudragit FS 100 (EFS) and ternary mixtures of IND, SSB 55 together with a new grade of HPMC (A15). Respective SDs were prepared via HME to achieve gastric protection and improved dissolution performance including maintenance of supersaturation. The SDs were characterized and tested for in-vitro dissolution performance using a pH shift dissolution method from 1.1, 5.5, 6.8, and 7.4. A ternary extrudate of IND, SSB 55, and A15 showed improved protection below pH 5.5 with a complete release of 99.5% at pH 7.4 compared to IND neat and binary extrudates from IND-A15, IND-SSB 55, and IND-EFS. It was attributed to an increased level of intermolecular interaction confirmed by ATR-IR and was studied for stability. It was found that in a ternary mixture containing IND, A15 and SSB 55 an increased hydrogen bonding interaction is present, which resulted in improved dissolution performance compared to binary mixtures. Therefore, ternary SDs proved to be a promising concept for future development of colon targeting of poorly soluble drugs.
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Affiliation(s)
- Dnyaneshwar N Kapote
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Bonn, Germany
| | - Karl G Wagner
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Bonn, Germany
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Wang M, Hao W, Zhang L, Zhu Y, Chen K, Ma S, Cheng X, Zhao J. Lipid-polymer nano core-shell type hybrid system for colon specific drug delivery. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Phan TQ, Tran PHL, Tran TTD. The relationship between mucoadhesive polymers and surface coating in tablets for the controlled colonic delivery of a poorly water-soluble drug. DARU : JOURNAL OF FACULTY OF PHARMACY, TEHRAN UNIVERSITY OF MEDICAL SCIENCES 2020; 28:545-553. [PMID: 32705542 DOI: 10.1007/s40199-020-00360-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 07/17/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND The mucoadhesive polymers play an important role in targeted and controlled drug delivery. OBJECTIVES This study aimed to investigate the drug release behaviour and interpret the role of mucoadhesive polymers involved in the coating layer of mucoadhesive tablets for the sustained release of a poorly water-soluble drug. METHODS A solid dispersion of prednisolone and zein was used in the core tablets created with two mucoadhesive polymers, which included Carbopol 940 and hydroxypropyl methylcellulose K4M. In addition, the properties of a single-layer coating, created from the combination of zein and Kollicoat MAE 100P to delay release through the upper parts of the gastrointestinal tract, were investigated in the presence of the above mucoadhesive polymers; these properties included drug dissolution, mucoadhesion, surface morphology, swelling and erosion. RESULTS The mucoadhesive polymer concentrations and types were integrated not only into the core tablets through a swelling/erosion mechanism but also into the surface polymer coatings for controlled drug release. HPMC was preferred in the formulations due to the ability to form pores on the surface coating, allowing water uptake so that the coating could control drug release for a later stage via a swelling/erosion mechanism. CONCLUSION The proposed mechanism determined in this project could be beneficial in the selection of polymers for applications targeting the colon with coated mucoadhesive tablets. Graphical abstract.
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Affiliation(s)
| | | | - Thao T D Tran
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam. .,Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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Sarangi MK, Rao MEB, Parcha V. Smart polymers for colon targeted drug delivery systems: a review. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1785455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Manoj Kumar Sarangi
- Department of Pharmacy, Sardar Bhagwan Singh Postgraduate Institute of Biomedical Sciences and Research, Dehradun, India
- Bijupatnaik University of Technology, Rourkela, India
| | - M. E. Bhanoji Rao
- Department of Pharmacy, Roland Institute of Pharmaceutical Sciences, Berhampur, India
- Department of Pharmacy, Calcutta Institute of Pharmaceutical Technology and Allied Health Sciences, Howrah, India
| | - Versha Parcha
- Department of Pharmacy, Sardar Bhagwan Singh Postgraduate Institute of Biomedical Sciences and Research, Dehradun, India
- Department of Applied Chemistry, Dolphin (PG) Institute of Biomedical and Natural Sciences, Dehradun, India
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Sarangi MK, Rao MB, Parcha V, Upadhyay A. Tailoring of Colon Targeting with Sodium Alginate‐Assam Bora Rice Starch Based Multi Particulate System Containing Naproxen. STARCH-STARKE 2020. [DOI: 10.1002/star.201900307] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Manoj Kumar Sarangi
- Sardar Bhagwan Singh Postgraduate Institute of Biomedical Sciences and Research Balawala Dehradun Uttarakhand 248001 India
- Ph.D. Research ScholarBijupatnaik University of Technology Rourkela Odisha 769004 India
| | - M.E. Bhanoji Rao
- Roland Institute of Pharmaceutical Sciences Berhampur Odisha 760010 India
- Calcutta Institute of Pharmaceutical Technology & Allied Health sciences Howrah West Bengal 711316 India
| | - Versha Parcha
- Sardar Bhagwan Singh Postgraduate Institute of Biomedical Sciences and Research Balawala Dehradun Uttarakhand 248001 India
- Dolphin (PG) Institute of Biomedical & Natural Sciences Dehradun Uttarakhand 248007 India
| | - Aadesh Upadhyay
- Sardar Bhagwan Singh Postgraduate Institute of Biomedical Sciences and Research Balawala Dehradun Uttarakhand 248001 India
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Bertoni S, Machness A, Tiboni M, Bártolo R, Santos HA. Reactive oxygen species responsive nanoplatforms as smart drug delivery systems for gastrointestinal tract targeting. Biopolymers 2019; 111:e23336. [PMID: 31724750 DOI: 10.1002/bip.23336] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/13/2022]
Abstract
The pharmacological therapy for gastrointestinal (GI) diseases, such as inflammatory bowel diseases, continues to present challenges in targeting efficacy. The need for maximal local drug exposure at the inflamed regions of the GI tract has led research to focus on a disease-targeted drug delivery approach. Smart nanomaterials responsive to the reactive oxygen species (ROS) concentrated in the inflamed areas, can be formulated into nanoplatforms to selectively release the active compounds, avoiding unspecific drug delivery to healthy tissues and limiting systemic absorption. Recent developments of ROS-responsive nanoplatforms include combination with other materials to obtain multi-responsive systems and modifications/derivatization to increase the interactions with biological tissues, cell uptake and targeting. This review describes the applications of ROS-responsive nanosystems for on-demand drug delivery to the GI tract.
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Affiliation(s)
- Serena Bertoni
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Ariella Machness
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Department of Materials Science and Engineering, University of California Los Angeles, Los Angeles, California, USA
| | - Mattia Tiboni
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Raquel Bártolo
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Hélder A Santos
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland.,Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
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Fabrication of HPMC and Hibiscus esculentus (okra) gum based microspheres loaded with sulfasalazine and dexamethasone. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1788-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Hens B, Corsetti M, Spiller R, Marciani L, Vanuytsel T, Tack J, Talattof A, Amidon GL, Koziolek M, Weitschies W, Wilson CG, Bennink RJ, Brouwers J, Augustijns P. Exploring gastrointestinal variables affecting drug and formulation behavior: Methodologies, challenges and opportunities. Int J Pharm 2017; 519:79-97. [DOI: 10.1016/j.ijpharm.2016.11.063] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 12/16/2022]
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Formulation design space for stable, pH sensitive crystalline nifedipine nanoparticles. Int J Pharm 2016; 514:81-92. [DOI: 10.1016/j.ijpharm.2016.08.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/08/2016] [Accepted: 08/18/2016] [Indexed: 11/20/2022]
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Y. A. Kaassis A, Xu SM, Guan S, Evans DG, Wei M, Williams GR. Hydroxy double salts loaded with bioactive ions: Synthesis, intercalation mechanisms, and functional performance. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2016.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Kotla NG, Singh S, Maddiboyina B, Sunnapu O, Webster TJ. A novel dissolution media for testing drug release from a nanostructured polysaccharide-based colon specific drug delivery system: an approach to alternative colon media. Int J Nanomedicine 2016; 11:1089-95. [PMID: 27051284 PMCID: PMC4803241 DOI: 10.2147/ijn.s97177] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to develop a novel microbially triggered and animal-sparing dissolution method for testing of nanorough polysaccharide-based micron granules for colonic drug delivery. In this method, probiotic cultures of bacteria present in the colonic region were prepared and added to the dissolution media and compared with the performance of conventional dissolution methodologies (such as media with rat cecal and human fecal media). In this study, the predominant species (such as Bacteroides, Bifidobacterium, Lactobacillus species, Eubacterium and Streptococcus) were cultured in 12% w/v skimmed milk powder and 5% w/v grade “A” honey. Approximately 1010–1011 colony forming units m/L of probiotic culture was added to the dissolution media to test the drug release of polysaccharide-based formulations. A USP dissolution apparatus I/II using a gradient pH dissolution method was used to evaluate drug release from formulations meant for colonic drug delivery. Drug release of guar gum/Eudragit FS30D coated 5-fluorouracil granules was assessed under gastric and small intestine conditions within a simulated colonic environment involving fermentation testing with the probiotic culture. The results with the probiotic system were comparable to those obtained from the rat cecal and human fecal-based fermentation model, thereby suggesting that a probiotic dissolution method can be successfully applied for drug release testing of any polysaccharide-based oral formulation meant for colonic delivery. As such, this study significantly adds to the nanostructured biomaterials’ community by elucidating an easier assay for colonic drug delivery.
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Affiliation(s)
- Niranjan G Kotla
- School of Pharmaceutical Sciences, Lovely Professional University, Punjab, India; Technologies for the Advancement of Science, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
| | - Sima Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Punjab, India; Department of Pharmaceutical Sciences, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Balaji Maddiboyina
- Department of Pharmaceutics, Vishwabharathi College of Pharmaceutical Sciences, Guntur, Andhra Pradesh, India
| | - Omprakash Sunnapu
- Technologies for the Advancement of Science, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
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Sawarkar SP, Deshpande SG, Bajaj AN, Nikam VS. In Vivo Evaluation of 5-ASA Colon-Specific Tablets Using Experimental-Induced Colitis Rat Animal Model. AAPS PharmSciTech 2015; 16:1445-54. [PMID: 26017284 DOI: 10.1208/s12249-015-0331-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 05/07/2015] [Indexed: 11/30/2022] Open
Abstract
Colonic drug delivery is intended not only for local treatment in inflammatory bowel disease (IBD) but also for systemic delivery of therapeutics. Intestinal myeloperoxidase (MPO) determination could be used to estimate the average level of inflammation in colon as well as to determine the efficacy of drugs to be used in the treatment of inflammatory bowel diseases or study the specificity of dosage forms to be used for colonic targeting of anti-inflammatory drugs. Colonic prodrug sulfasalazine (SASP) gets metabolized to give 5-aminosalicylic acid (5-ASA), which is the active portion of SASP. However, when given orally, 5-ASA is absorbed in upper part of gastrointestinal tract (GIT) and not made available in colon. In the present study, colon-targeted delivery of 5-ASA was achieved by formulating tablets with two natural polymers namely guar gum and pectin using compression coating method. Colonic specificity of 5-ASA tablets (prepared using guar gum and pectin as polymers) was evaluated in vitro using simulated fluids mimicking in vivo environment as well as in vivo method using chemically (2,4,6-trinitrobenzenesulfonic acid and acetic acid)-induced colitis rat model. Both colon-specific formulations of 5-ASA (guar gum and pectin) were observed to be more effective in reducing inflammation in chemically induced colitis rat models when compared to colon-specific prodrug sulfasalazine as well as conventional 5-ASA administered orally.
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Singh S, Kotla NG, Tomar S, Maddiboyina B, Webster TJ, Sharma D, Sunnapu O. A nanomedicine-promising approach to provide an appropriate colon-targeted drug delivery system for 5-fluorouracil. Int J Nanomedicine 2015; 10:7175-82. [PMID: 26648721 PMCID: PMC4664497 DOI: 10.2147/ijn.s89030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Targeted drug delivery plays a significant role in disease treatment associated with the colon, affording therapeutic responses for a prolonged period of time with low side effects. Colorectal cancer is the third most common cancer in both men and women with an estimated 102,480 cases of colon cancer and 40,340 cases of rectal cancer in 2013 as reported by the American Cancer Society. In the present investigation, we developed an improved oral delivery system for existing anticancer drugs meant for colon cancer via prebiotic and probiotic approaches. The system comprises three components, namely, nanoparticles of drug coated with natural materials such as guar gum, xanthan gum (that serve as prebiotics), and probiotics. The natural gums play a dual role of protecting the drug in the gastric as well as intestinal conditions to allow its release only in the colon. In vitro results obtained from these experiments indicated the successful targeted delivery of 5-fluorouracil to the colon. Electron microscopy results demonstrated that the prepared nanoparticles were spherical in shape and 200 nm in size. The in vitro release data indicated that the maximum release occurs at pH 7.2 and 7.4 with 93% of the drug released in the presence of 4% (w/v) of rat cecal content. In vivo results conclude a practical mechanism to maintain the integrity and intactness of the intestinal/colonic microflora, in the face of a “chemical attack” by oral colon-targeted drug delivery for colon cancer treatment.
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Affiliation(s)
- Sima Singh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Niranjan G Kotla
- Technologies for the Advancement of Science, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
| | - Sonia Tomar
- Department of Pharmaceutics, Ram Gopal College of Pharmacy, Rohtak, Haryana, India
| | - Balaji Maddiboyina
- Department of Pharmaceutics, Maharishi Markandeshwar University, Mullana, Ambala, Haryana, India
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA ; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Omprakash Sunnapu
- Technologies for the Advancement of Science, Institute for Stem Cell Biology and Regenerative Medicine, Bangalore, Karnataka, India
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Rani GU, Dey KP, Bharti S, Mishra S. Controlled drug release of 5-amino salicylic acid by poly(2-hydroxyethylmethacrylate) grafted agar. Front Chem Sci Eng 2014. [DOI: 10.1007/s11705-014-1452-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Trombino S, Ferrarelli T, Cassano R. A new pro-prodrug aminoacid-based for trans-ferulic Acid and silybin intestinal release. J Funct Biomater 2014; 5:99-110. [PMID: 25062426 PMCID: PMC4192607 DOI: 10.3390/jfb5030099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 06/23/2014] [Accepted: 07/09/2014] [Indexed: 11/16/2022] Open
Abstract
The aim of this work was the preparation and characterization of a pro-prodrug able to simultaneously transport silybin, a drug possessing various pharmacological effects, and trans-ferulic acid, a known antioxidant. More specifically, l-phenylalanine-N-(4-hydroxy-3-methoxy-phenyl) prop-2-en-O-(2R,3R)-3,5,7-trihydroxy-2-((2R,3R)-3-(4-hydroxy-3-methoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-benzo-(1,4)-dioxin-6-yl)croman-4-one was synthesized by using the aminoacid l-phenylalanine (l-Phe) as carrier. Indeed, l-Phe is characterized by an intrinsic chemical reactivity due to the presence of an amino group, placed on the chiral center, and of a carboxylic group. The synthesis has been characterized first by adding silybin by means of carboxylic group and then, with the aim to confer antioxidant properties to this new carrier, by linking trans-ferulic acid to l-Phe via amino group. The so obtained derivative was then characterized by FT-IR, and 1H-NMR spectroscopies. Furthermore, its ability to inhibit lipid peroxidation induced by tert-butyl hydroperoxide in rat liver microsomes, was evaluated. The 1,1-diphenyl-2-picrylhydrazyl radical-scavenging effect, was also assessed. The release of silybin and trans-ferulic acid was determined in simulated gastric and intestinal fluids over the time. The results showed that the covalent bond between both (i) silybin; or (ii) trans-ferulic acid and the amino acid was degraded by enzymatic reactions. In addition, the pro-prodrug, showed strong antioxidant and scavenger activities. Due to these properties, this new pro-prodrug could be applied for the treatment of intestinal pathologies and it might improve the therapeutic potential of silybin which is strongly limited by its low solubility.
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Affiliation(s)
- Sonia Trombino
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, 87036 Arcavacata di Rende Cosenza, Italy.
| | - Teresa Ferrarelli
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, 87036 Arcavacata di Rende Cosenza, Italy.
| | - Roberta Cassano
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, 87036 Arcavacata di Rende Cosenza, Italy.
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Ehmann HA, Baumgartner R, Kunert B, Zimmer A, Roblegg E, Werzer O. Morphologies of Phenytoin Crystals at Silica Model Surfaces: Vapor Annealing versus Drop Casting. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2014; 118:12855-12861. [PMID: 24966892 PMCID: PMC4065161 DOI: 10.1021/jp502330e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/27/2014] [Indexed: 05/11/2023]
Abstract
The controlled preparation of different crystal morphologies with varying preferential orientation with respect to the substrate is of crucial importance in many fields of applications. In this work, the controlled preparation of different phenytoin morphologies and the dependency of the preferential orientation of those crystallites is related with the preparation method (solvent annealing vs drop casting), as well as the physical-chemical interaction with the solvents in use. While solvent annealing induces the formation of particular structures that are partially dewetted, the drop casting technique from various solvent results in the formation of needle-like and elongated structures, with each having a distinct morphology. The morphologies are explained via the Hansen solubility parameters and correlated with the solvent vapor pressures. X-ray diffraction experiments reveal preferential orientations with respect to the solid substrate and indicate the surface-mediated stabilization of an unknown polymorph of phenytoin with an elongated unit cell in the b-axis.
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Affiliation(s)
- Heike
M. A. Ehmann
- Institute
of Pharmaceutical Science, Department of Pharmaceutical Technology, University of Graz, 8010 Graz, Austria
| | | | - Birgit Kunert
- Institute
for Solid State Physics, Graz University
of Technology, 8010 Graz, Austria
| | - Andreas Zimmer
- Institute
of Pharmaceutical Science, Department of Pharmaceutical Technology, University of Graz, 8010 Graz, Austria
| | - Eva Roblegg
- Institute
of Pharmaceutical Science, Department of Pharmaceutical Technology, University of Graz, 8010 Graz, Austria
- Research Center
Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Oliver Werzer
- Institute
of Pharmaceutical Science, Department of Pharmaceutical Technology, University of Graz, 8010 Graz, Austria
- E-mail:
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Novel time and site specific “tablets in capsule” system for nocturnal asthma treatment. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2014. [DOI: 10.1007/s40005-014-0133-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Malayandi R, Kondamudi PK, Ruby PK, Aggarwal D. Biopharmaceutical considerations and characterizations in development of colon targeted dosage forms for inflammatory bowel disease. Drug Deliv Transl Res 2013; 4:187-202. [DOI: 10.1007/s13346-013-0185-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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25
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Formulation Development and Evaluation of Drug Release Kinetics from Colon-Targeted Ibuprofen Tablets Based on Eudragit RL 100-Chitosan Interpolyelectrolyte Complexes. ISRN PHARMACEUTICS 2013; 2013:838403. [PMID: 23986877 PMCID: PMC3748778 DOI: 10.1155/2013/838403] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 07/07/2013] [Indexed: 12/19/2022]
Abstract
Colon-targeted drug delivery systems (CTDDSs) could be useful for local treatment of inflammatory bowel diseases (IBDs). In this study, various interpolyelectrolyte complexes (IPECs), formed between Eudragit RL100 (EL) and chitosan (CS), by nonstoichiometric method, and tablets based on the IPECs, prepared by wet granulation, were evaluated as potential oral CTDDSs for ibuprofen (IBF). Results obtained showed that the tablets conformed to compendial requirements for acceptance and that CS and EL formed IPECs that showed pH-dependent swelling properties and prolonged the in vitro release of IBF from the tablets in the following descending order: 3 : 2 > 2 : 3 > 1 : 1 ratios of CS and EL. An electrostatic interaction between the carbonyl (–CO–) group of EL and amino (–NH3+) group of CS of the tablets formulated with the IPECs was capable of preventing drug release in the stomach and small intestine and helped in delivering the drug to the colon. Kinetic analysis of drug release profiles showed that the systems predominantly released IBF in a zero-order manner. IPECs based on CS and EL could be exploited successfully for colon-targeted delivery of IBF in the treatment of IBDs.
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Ma J, Checklin HL, Wishart JM, Stevens JE, Jones KL, Horowitz M, Meyer JH, Rayner CK. A randomised trial of enteric-coated nutrient pellets to stimulate gastrointestinal peptide release and lower glycaemia in type 2 diabetes. Diabetologia 2013; 56:1236-42. [PMID: 23471488 DOI: 10.1007/s00125-013-2876-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 02/11/2013] [Indexed: 02/07/2023]
Abstract
AIMS/HYPOTHESES Glucagon-like peptide-1 (GLP-1), an important mediator of postprandial glycaemia, could potentially be stimulated by delivering small quantities of nutrient to a long length of distal gut. We aimed to determine whether enteric-coated pellets, releasing small amounts of lauric acid throughout the ileum and colon, could reduce glycaemic responses to meals in type 2 diabetes, associated with stimulation of GLP-1. METHODS Eligible patients, who had type 2 diabetes controlled by diet or metformin, were each studied on two occasions in a hospital setting. After an overnight fast, patients consumed 5 g active pellets (47% lauric acid by weight) or placebo with breakfast (T = 0 min) and lunch (T = 240 min), in a crossover design with order randomised by the hospital pharmacy and allocation concealed by numbered containers. Patients and investigators making measurements were blinded to the intervention. Blood was sampled frequently for blood glucose (the primary outcome) and hormone assays. RESULTS Eight patients were randomised (four to receive either intervention first), and all completed the study without adverse effects. Blood glucose was lower after breakfast (T = 0-240 min, area under the curve (AUC) 2,075 ± 368 vs 2,216 ± 163 mmol/l × min) and lunch (T = 240-480 min, AUC 1,916 ± 115 vs 2,088 ± 151 mmol/l × min) (p = 0.02 for each) after active pellets than after placebo. Plasma GLP-1 concentrations were higher after breakfast (p = 0.08) and lunch (p = 0.04) for active pellets. While there were no differences in insulin or glucose-dependent insulinotropic polypeptide concentrations, glucagon concentrations were higher after breakfast and lunch (p = 0.002 for each) for active pellets. CONCLUSIONS/INTERPRETATION Delivering small amounts of nutrient to the ileum and colon can stimulate substantial endogenous GLP-1 release and attenuate postprandial glycaemia. This novel approach has therapeutic potential in type 2 diabetes. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry ACTRN12612000600842. FUNDING The study was funded by Meyer Nutriceuticals.
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Affiliation(s)
- J Ma
- Discipline of Medicine, Royal Adelaide Hospital North Terrace, Adelaide, SA 5000, Australia
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Mehta R, Chawla A, Sharma P, Pawar P. Formulation and in vitro evaluation of Eudragit S-100 coated naproxen matrix tablets for colon-targeted drug delivery system. J Adv Pharm Technol Res 2013; 4:31-41. [PMID: 23662280 PMCID: PMC3645356 DOI: 10.4103/2231-4040.107498] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The purpose of the present investigation was to prepare matrix tablets of naproxen using a hydrophobic polymer, i.e., Eudragit RLPO, RSPO, and combination of both, by wet granulation method. The tablets were further coated with different concentrations of Eudragit S-100, a pH-sensitive polymer, by dip immerse method. In vitro drug release studies of tablets were carried out in different dissolution media, i.e., 0.1 N HCl (pH 1.2), phosphate buffers pH 6.8 and 7.4, with or without rat cecal content. The swelling studies of the optimized formulation were carried out. The physicochemical parameters of all the formulations were found to be in compliance with the pharmacopoeial standards. The effect of dissolution medium on the surface of matrix tablet was determined by using Scanning Electron Microscopy technique. The stability studies of all formulations were performed as per ICH guidelines. The results demonstrated that the tablets coated with Eudragit S-100 (2% w/v) showed a sustained release of 94.67% for 24 h, but drug release increased to about 98.60% for 24 h in the presence of rat cecal content while the uncoated tablets released the drug within 5 h. With regard to release kinetics, the data were best fitted with the Higuchi model with non-Fickian drug release kinetics mechanism. The stability studies of tablets showed less degradation during accelerated and room temperature storage conditions for 6 months. The enteric-coated Eudragit S-100 coated matrix tablets of naproxen showed promising site-specific drug delivery in the colon region.
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Affiliation(s)
- Rohit Mehta
- Department of Pharmaceutics, Chitkara College of Pharmacy, Chitkara University, Chandigarh-Patiala Highway, Rajpura, Patiala, Punjab, India
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Mishra RK, Ramasamy K, Ban NN, Majeed ABA. Synthesis of poly[3-(methacryloylamino) propyl trimethylammonium chloride-co-methacrylic acid] copolymer hydrogels for controlled indomethacin delivery. J Appl Polym Sci 2012. [DOI: 10.1002/app.38491] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Emerging nanodelivery strategies of RNAi molecules for colon cancer therapy: preclinical developments. Ther Deliv 2012; 3:1117-30. [DOI: 10.4155/tde.12.89] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Although local colonic delivery is achievable through several strategies, colon cancer is still considered one of the leading causes of death worldwide. Failure of chemotherapeutics to exhibit efficient anticancer activity might be attributed to the development of multidrug resistance (MDR) mechanisms including the overexpression of certain oncogenes such as MDR1/P-gp. One of the major reasons for the shortcoming of P-gp inhibitors in clinic is the nonspecific distribution of them to nontarget organs, which leads to reduced elimination and increased toxicity of its substrates including anticancer agents. Numerous studies have demonstrated the effectiveness of gene-silencing approaches in reversing the P-gp-mediated MDR. However, none have reached clinical trials yet. Several drug-delivery systems have been investigated primarily to address P-gp and the observed improved anticancer efficacy suggests that nanomedicine provides new opportunities to overcome MDR in cancer. In this review, novel therapeutic strategies for colon cancer therapy will be discussed in the context of P-gp inhibition by low-molecular-weight agents and RNAi molecules.
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Krishnaiah YSR, Khan MA. Strategies of targeting oral drug delivery systems to the colon and their potential use for the treatment of colorectal cancer. Pharm Dev Technol 2012; 17:521-40. [PMID: 22681390 DOI: 10.3109/10837450.2012.696268] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Colorectal cancer (CRC) is the third most common cause of cancer-related death in both men and women. Often, surgical intervention remains the choice in treating CRC. Traditional dosage forms used for treating CRC deliver drug to wanted as well as unwanted sites of drug action resulting in several adverse side effects. Targeted oral drug delivery systems are being investigated to target and deliver chemotherapeutic and chemopreventive agents directly to colon and rectum. Site-specific delivery of a drug to colon increases its concentration at the target site, and thus requires a lower dose with reduced incidence of side effects. The major obstacle to be overcome for successful targeting of drug to colon through oral route is that drug absorption/degradation must be avoided in stomach and small intestine before the dosage form reaches colon. The review includes discussion of physiological factors that must be considered when targeting drugs directly to colorectal region, an outline on drugs used for treatment and prevention of CRC, and a brief description of various types of colon-targeted oral drug delivery systems. The focus is on the assessment of various formulation approaches being investigated for oral colon-specific delivery of drugs used in the treatment and prevention of CRC.
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Affiliation(s)
- Yellela S R Krishnaiah
- Division of Product Quality Research, Office of Testing and Research, Office of Pharmaceutical Science, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Springs, MD 20993, USA.
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Mandracchia D, Denora N, Franco M, Pitarresi G, Giammona G, Trapani G. New Biodegradable Hydrogels Based on Inulin and α,β-Polyaspartylhydrazide Designed for Colonic Drug Delivery: In Vitro Release of Glutathione and Oxytocin. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:313-28. [DOI: 10.1163/092050609x12609582084086] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Delia Mandracchia
- a Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
| | - Nunzio Denora
- b Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
| | - Massimo Franco
- c Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
| | - Giovanna Pitarresi
- d Dipartimento di Chimica e Tecnologie Farmaceutiche, Università di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Gaetano Giammona
- e Dipartimento di Chimica e Tecnologie Farmaceutiche, Università di Palermo, Via Archirafi 32, 90123 Palermo, Italy; IBF-CNR, Via Ugo La Malfa 153, 90143 Palermo, Italy
| | - Giuseppe Trapani
- f Dipartimento Farmaco-Chimico, Università di Bari, Via Orabona 4, 70125 Bari, Italy
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Madhavi M, Madhavi K, Jithan AV. Preparation and in vitro/in vivo characterization of curcumin microspheres intended to treat colon cancer. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2012; 4:164-71. [PMID: 22557928 PMCID: PMC3341721 DOI: 10.4103/0975-7406.94825] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2011] [Revised: 04/25/2011] [Accepted: 05/15/2011] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE The objective of the present investigation was to prepare colon targeted curcumin microspheres using Eudragit S100 and evaluate the same for in vitro/in vivo properties. MATERIALS AND METHODS A "O/O solvent evaporation" technique was used in the preparation of microspheres. The influence of various process variables including stirring speed, drug:polymer ratio and percentage of emulsifier on the fabrication were investigated and the formulation was optimized. Prepared microspheres were evaluated for in vitro and in vivo properties. Surface morphology, particle size, percentage drug entrapment, percentage yield, drug polymer interaction, in vitro drug release in simulated gastrointestinal transit conditions and stability were the in vitro parameters investigated. Using an optimized formulation, drug release into the systemic circulation and organ distribution were investigated as in vivo parameters. In vivo parameters were estimated in male albino rats. RESULTS Curcumin microspheres of Eudragit S100 were successfully prepared using o/o solvent evaporation method. Microspheres prepared using 1:2 drug:polymer ratio, with a stirring speed of 1000 rpm, and using 1.0% w/v concentration of emulsifying agent was selected as an optimized formulation. The release studies with optimized formulation demonstrated that aqueous solubility of curcumin was enhanced by 8 times with the formulation. FTIR studies demonstrated no change in drug characteristics upon microsphere fabrication. The enhancement in solubility is thus due to the increase in the surface area of the drug substance and not due to a change of drug to a different physical state. This was further confirmed by scanning electron microsphere pictures. Drug release followed Korsmeyer and Peppas release model. Accelerated stability studies indicated that the drug is stable in the formulation for a period of atleast 14 weeks at room temperature. In vivo studies demonstrated a sustained drug release into the systemic circulation after oral administration of the formulation. Further, colon target was affectively achieved using the optimized formulation. Eudragit microspheres delivered most of their drug load (79.0%) to the colon, whereas with plain drug suspension only 28.0% of the total dose reached the target site. CONCLUSION This study successfully developed curcumin microspheres that can be used effectively in the treatment of the colon cancer.
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Affiliation(s)
- M. Madhavi
- Priyadarshini Yashodhara College of Pharmacy, Chandrapur, Maharashtra, India
| | - K. Madhavi
- Care College of Pharmacy, Warangal, Andhra Pradesh, India
| | - A. V. Jithan
- Mother Teresa College of Pharmacy, Hyderabad, Andhra Pradesh, India
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Patel MM, Amin AF. Development of a novel tablet-in-capsule formulation of mesalamine for inflammatory bowel disease. Pharm Dev Technol 2012; 18:390-400. [DOI: 10.3109/10837450.2011.653819] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Prezotti FG, Meneguin AB, Evangelista RC, Ferreira Cury BS. Preparation and characterization of free films of high amylose/pectin mixtures cross-linked with sodium trimetaphosphate. Drug Dev Ind Pharm 2012; 38:1354-9. [DOI: 10.3109/03639045.2011.650863] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Laroui H, Sitaraman SV, Merlin D. Gastrointestinal Delivery of Anti-inflammatory Nanoparticles. Methods Enzymol 2012; 509:101-25. [DOI: 10.1016/b978-0-12-391858-1.00006-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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36
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Onishi H, Kikuchi H, Machida Y. Comparison of simple Eudragit microparticles loaded with prednisolone and Eudragit-coated chitosan-succinyl-prednisolone conjugate microparticles: Part I. Particle characteristics andin vitroevaluation as a colonic delivery system. Drug Dev Ind Pharm 2011; 38:800-7. [DOI: 10.3109/03639045.2011.628677] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Trombino S, Cassano R, Cilea A, Ferrarelli T, Muzzalupo R, Picci N. Synthesis of pro-prodrugs l-lysine based for 5-aminosalicylic acid and 6-mercaptopurine colon specific release. Int J Pharm 2011; 420:290-6. [DOI: 10.1016/j.ijpharm.2011.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Accepted: 09/01/2011] [Indexed: 10/17/2022]
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Bharaniraja B, Jayaram Kumar K, Prasad C, Sen A. Different approaches of katira gum formulations for colon targeting. Int J Biol Macromol 2011; 49:305-10. [DOI: 10.1016/j.ijbiomac.2011.05.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 04/21/2011] [Accepted: 05/04/2011] [Indexed: 10/18/2022]
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Tailoring of drug delivery of 5-fluorouracil to the colon via a mixed film coated unit system. ACTA PHARMACEUTICA 2011; 61:343-51. [PMID: 21945913 DOI: 10.2478/v10007-011-0023-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The study was carried out to establish the effectiveness of a mixed film composed of ethylcellulose/Eudragit S100 for colonic delivery of 5-flourouracil (5-FU). Tablets cores containing 5-FU were prepared by direct compression method by coating at different levels (2-9%, m/m) with a non-aqueous solution containing ethylcellulose/Eudragit S100. Coated tablets were studied for the in vitro release of 5-FU and the samples were analyzed spectrophotometrically at 266 nm. Drug release from coated systems depended on the thickness of the mixed film and the composition of the core. Channel formation was initiated in the coat by dissolution of the Eudragit S100 fraction at higher pH in the colonic region. The release was found to be higher in tablets containing Avicel as filler owing to its wicking action compared to that from lactose containing cores. Furthermore, batches containing superdisintegrant (1%, m/m Cross-PVP) along with Avicel in the core released approximately 81.1% drug during the colonic transit time. Kinetic studies indicated that all the formulations followed first-order release kinetics. The developed delivery system will expectedly deliver the drug to the colon.
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Kong H, Kim H, Do H, Lee Y, Hong S, Yoon JH, Jung Y, Kim YM. Structural effects of N-aromatic acyl-amino acid conjugates on their deconjugation in the cecal contents of rats: implication in design of a colon-specific prodrug with controlled conversion rate at the target site. Biopharm Drug Dispos 2011; 32:343-54. [PMID: 21800327 DOI: 10.1002/bdd.763] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 05/31/2011] [Accepted: 06/16/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Hyesik Kong
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
| | - Hyunjeong Kim
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
| | - Heejeong Do
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
| | - Yonghyun Lee
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
| | - Sungchae Hong
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
| | - Jeong-Hyun Yoon
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
| | - Yunjin Jung
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
| | - Young Mi Kim
- Laboratory of Biomedicinal Chemistry, College of Pharmacy; Pusan National University; Busan; Republic of Korea
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41
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Ramasamy T, Kandhasami UDS, Ruttala H, Shanmugam S. Formulation and evaluation of xanthan gum based aceclofenac tablets for colon targeted drug delivery. BRAZ J PHARM SCI 2011. [DOI: 10.1590/s1984-82502011000200011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The objective of the present study is to develop a colon targeted drug delivery systems for Aceclofenac using xanthan gum as a carrier. In this study, multilayer coated system that is resistant to gastric and small intestinal conditions but can be easily degraded by colonic bacterial enzymes was designed to achieve effective colon delivery of Aceclofenac. The xanthan gum, the drug and the physical mixture were characterized by Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). All the formulations were evaluated for hardness, drug content uniformity and other physical properties. Release aspects of Aceclofenac in simulated gastrointestinal fluid and colonic fluid with enzymes were investigated. From these results, Eudragit coated system exhibited gastric and small intestinal resistance to the release of Aceclofenac. The rapid increase in release of Aceclofenac in SCF was revealed as due to the degradation of the xanthan gum membrane by bacterial enzymes. The designed system could be used potentially as a carrier for colon delivery of Aceclofenac by regulating drug release in stomach and the small intestine.
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Affiliation(s)
- Thiruganesh Ramasamy
- Utah-Inha DDS & Advanced Therapeutics Research Center, South Korea; Pydah College of Pharmacy, India
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42
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Shah N, Shah T, Amin A. Polysaccharides: a targeting strategy for colonic drug delivery. Expert Opin Drug Deliv 2011; 8:779-96. [DOI: 10.1517/17425247.2011.574121] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Takhshid MA, Mehrabani D, Ai J, Zarepoor M. The healing effect of licorice extract in acetic acid-induced ulcerative colitis in rat model. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s00580-011-1249-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Yassin AEB, Aodah AH, Al-Suwayeh S, Taha EI. Theophylline colon specific tablets for chronotherapeutic treatment of nocturnal asthma. Pharm Dev Technol 2011; 17:712-8. [PMID: 21486185 DOI: 10.3109/10837450.2011.572896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The ultimate goal is to design a new chronotherapeutic system for theophylline (TPH) with high potential benefits in treating nocturnal asthma. TPH core tablets were prepared by wet granulation using a developed formula. Compression coating over core tablets containing 200 mg TPH was done using granulated chitosan with 10% PVP K30. Different formulae F1, F2 and F3 were prepared using coat weights 260, 300 and 360 mg, respectively. The in vitro release characteristics in both variant pH media mimicking the gastrointestinal media and in media containing rat cecal content were monitored. The in vivo performance of the optimum formula was compared with Avolen(®) SR in Beagle dogs. F3 with high coat thickness exhibited a minimal release after 5-h release study. Both F2 and F3 showed more than 50% drug release after 4 h in the rat cecal medium. This reflects the colon selectivity of the system. The C(max) values were found to be 5.49 ± 0.46 and 5.12 ± 0.85 μg/mL for F3 and Avolen(®) SR, respectively, F3 showed higher mean plasma concentration than Avolen(®) SR from the beginning and continued till 7 h post administration indicating high potential as chronotherapeutic treatment of nocturnal asthma.
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Affiliation(s)
- Alaa Eldeen B Yassin
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
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45
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Jain V, Jain D, Singh R. Factors Effecting the Morphology of Eudragit S-100 Based Microsponges Bearing Dicyclomine for Colonic Delivery. J Pharm Sci 2011; 100:1545-52. [DOI: 10.1002/jps.22360] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2010] [Revised: 09/03/2010] [Accepted: 09/06/2010] [Indexed: 12/22/2022]
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46
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Kshirsagar SJ, Bhalekar MR, Patel JN, Mohapatra SK, Shewale NS. Preparation and characterization of nanocapsules for colon-targeted drug delivery system. Pharm Dev Technol 2011; 17:607-13. [DOI: 10.3109/10837450.2011.557732] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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47
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Design and evaluation of matrix base with sigmoidal release profile for colon-specific delivery using a combination of Eudragit and non-ionic cellulose ether polymers. Drug Deliv Transl Res 2011; 1:132-46. [DOI: 10.1007/s13346-011-0016-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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48
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Eudragit-coated albumin nanospheres carrying inclusion complexes for oral administration of indomethacin. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-010-9916-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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49
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Fukushima K, Prabha T, Ito Y, Sugioka N, Takada K. Polymeric three-layered particles for the delivery of prednisolone to the lower gastrointestinal tract in rats. Drug Dev Ind Pharm 2011; 37:335-41. [PMID: 21244236 DOI: 10.3109/03639045.2010.513010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The aim of this study is to investigate the feasibility of three-layered particles as a drug delivery system to the lower part of small intestine. METHODS The particle surface and basement layers were made of enteric polymer, Eudragit(®) S100, and water-insoluble polymer, ethylcellulose. Prednisolone (PSL), as a model drug, was sealed with the surface and basement layers. After the administration of the test preparations to the duodenum of rats, blood samples were collected and plasma PSL levels were measured by high-performance liquid chromatography. The retention and transit characteristics of the three-layered particles in rat small intestine were studied by direct observation after abdominal incision up to 8 hours. RESULTS Three-layered PSL particles showed C(max) of 0.32 ± 0.07 μg/mL and T(max) at 6 hours, whereas the mean C(max) and T(max) of PSL powder, as a reference preparation, were 0.42 ± 0.03 μg/mL and 1 hour, respectively. With the direct observations, after administration of particles, about 77.5% of them were detected in duodenum at 1 hour, 45% in distal jejunum at 3 hours, and 50% in proximal ileum at 4 hours. Then, they were gradually transferred to the lower part of the small intestine at 5-8 hours time intervals. In comparison with PSL powder, three-layered particles delayed the intestinal transit and released PSL during their passage through the small intestine. CONCLUSION These results suggested that three-layered particles adhered to the gastrointestinal mucosa and sustained the release of drug, resulting in drug delivery to the lower part of gastrointestinal tract.
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Affiliation(s)
- Keizo Fukushima
- Department of Pharmacokinetics, Kyoto Pharmaceutical University, Japan.
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50
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El-Hag Ali A, AlArifi AS. Swelling and drug release profile of poly(2-ethyl-2-oxazoline)-based hydrogels prepared by gamma radiation-induced copolymerization. J Appl Polym Sci 2011. [DOI: 10.1002/app.33480] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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