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Touza-Otero L, Landin M, Diaz-Rodriguez P. Fighting antibiotic resistance in the local management of bovine mastitis. Biomed Pharmacother 2024; 170:115967. [PMID: 38043445 DOI: 10.1016/j.biopha.2023.115967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/15/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023] Open
Abstract
Bovine mastitis is a widespread infectious disease with a significant economic burden, accounting for 80 % of the antibiotic usage in dairy animals. In recent years, extensive research has focused on using biomimetic approaches such as probiotics, bacteriocins, bacteriophages, or phytochemicals as potential alternatives to antibiotics. The local administration of therapeutic molecules through the intramammary route is one of the most commonly strategies to manage bovine mastitis. This review highlights the most important findings in this field and discusses their local application in mastitis therapy. In contrast to antibiotics, the proposed alternatives are not limited to promote bacterial death but consider other factors associated to the host microenvironments. To this end, the proposed biomimetic strategies can modulate different stages of infection by modifying the local microbiota, preventing oxidative stress, reducing bacterial adhesion to epithelial cells, modulating the immune response, or mediating the inflammatory process. Numerous in vitro studies support the antimicrobial, antibiofilm or antioxidant properties of these alternatives. However, in vivo studies incorporating these components within pharmaceutical formulations with potential clinical application are limited. The development of secure, stable, and effective drug delivery systems based on the proposed options is necessary to achieve real alternatives to antibiotics in the clinic.
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Affiliation(s)
- Lara Touza-Otero
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Grupo I+D Farma (GI-1645), Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706 Santiago de Compostela, Spain; Instituto de Materiais da Universidade de Santiago de Compostela (iMATUS), 15706 Santiago de Compostela, Spain
| | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Grupo I+D Farma (GI-1645), Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706 Santiago de Compostela, Spain; Instituto de Materiais da Universidade de Santiago de Compostela (iMATUS), 15706 Santiago de Compostela, Spain
| | - Patricia Diaz-Rodriguez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Grupo I+D Farma (GI-1645), Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706 Santiago de Compostela, Spain; Instituto de Materiais da Universidade de Santiago de Compostela (iMATUS), 15706 Santiago de Compostela, Spain.
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Martinez-Borrajo R, Diaz-Rodriguez P, Landin M. Rationalized design to explore the full potential of PLGA microspheres as drug delivery systems. Drug Deliv 2023; 30:2219864. [PMID: 37272488 DOI: 10.1080/10717544.2023.2219864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Polymeric microparticles are widely used as drug delivery platforms either alone or embedded in more complex structures for regenerative medicine. Emulsion-solvent evaporation is the most extensively used technique for microparticles preparation. Despite the apparent simplicity of this method, there is no general procedure for producing microparticles of predictable characteristics (particle size, size distribution, encapsulation efficiency, and drug loading). Hybrid systems such as neurofuzzy logic allow identifying relationships between inputs and outputs, expressing the generated mathematical models through rules in linguistic format. In this work, the relationships between the variables involved in the emulsion-solvent evaporation process and the quality parameters of PLGA microparticles as drug delivery systems were established. Neurofuzzy logic software was able to generate models of high predictability (> 85%) for the microspheres properties namely particle size, size distribution, encapsulation efficiency and drug loading. Moreover, the generated sets of IF-THEN rules allowed to dictate general guidelines to better select the PLGA microparticles formulation parameters. This approach would be of great interest as a starting point to set-up protocols for the development of PLGA microparticles obtained by emulsion-solvent evaporation for many applications.
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Affiliation(s)
- Rebeca Martinez-Borrajo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Grupo I + D Farma (GI-1645), Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, Santiago de Compostela, Spain
- Instituto de Materiais da Universidade de Santiago de Compostela (iMATUS), Santiago de Compostela, Spain
| | - Patricia Diaz-Rodriguez
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Grupo I + D Farma (GI-1645), Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, Santiago de Compostela, Spain
- Instituto de Materiais da Universidade de Santiago de Compostela (iMATUS), Santiago de Compostela, Spain
| | - Mariana Landin
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Grupo I + D Farma (GI-1645), Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, Santiago de Compostela, Spain
- Instituto de Materiais da Universidade de Santiago de Compostela (iMATUS), Santiago de Compostela, Spain
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Illanes-Bordomás C, Landin M, García-González CA. Aerogels as Carriers for Oral Administration of Drugs: An Approach towards Colonic Delivery. Pharmaceutics 2023; 15:2639. [PMID: 38004617 PMCID: PMC10674668 DOI: 10.3390/pharmaceutics15112639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Polysaccharide aerogels have emerged as a highly promising technology in the field of oral drug delivery. These nanoporous, ultralight materials, derived from natural polysaccharides such as cellulose, starch, or chitin, have significant potential in colonic drug delivery due to their unique properties. The particular degradability of polysaccharide-based materials by the colonic microbiota makes them attractive to produce systems to load, protect, and release drugs in a controlled manner, with the capability to precisely target the colon. This would allow the local treatment of gastrointestinal pathologies such as colon cancer or inflammatory bowel diseases. Despite their great potential, these applications of polysaccharide aerogels have not been widely explored. This review aims to consolidate the available knowledge on the use of polysaccharides for oral drug delivery and their performance, the production methods for polysaccharide-based aerogels, the drug loading possibilities, and the capacity of these nanostructured systems to target colonic regions.
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Affiliation(s)
| | - Mariana Landin
- AerogelsLab, I+D Farma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain;
| | - Carlos A. García-González
- AerogelsLab, I+D Farma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain;
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García-Pérez P, Lozano-Milo E, Zhang L, Miras-Moreno B, Landin M, Lucini L, Gallego PP. Neurofuzzy logic predicts a fine-tuning metabolic reprogramming on elicited Bryophyllum PCSCs guided by salicylic acid. Front Plant Sci 2022; 13:991557. [PMID: 36212372 PMCID: PMC9541431 DOI: 10.3389/fpls.2022.991557] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Novel approaches to the characterization of medicinal plants as biofactories have lately increased in the field of biotechnology. In this work, a multifaceted approach based on plant tissue culture, metabolomics, and machine learning was applied to decipher and further characterize the biosynthesis of phenolic compounds by eliciting cell suspension cultures from medicinal plants belonging to the Bryophyllum subgenus. The application of untargeted metabolomics provided a total of 460 phenolic compounds. The biosynthesis of 164 of them was significantly modulated by elicitation. The application of neurofuzzy logic as a machine learning tool allowed for deciphering the critical factors involved in the response to elicitation, predicting their influence and interactions on plant cell growth and the biosynthesis of several polyphenols subfamilies. The results indicate that salicylic acid plays a definitive genotype-dependent role in the elicitation of Bryophyllum cell cultures, while methyl jasmonate was revealed as a secondary factor. The knowledge provided by this approach opens a wide perspective on the research of medicinal plants and facilitates their biotechnological exploitation as biofactories in the food, cosmetic and pharmaceutical fields.
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Affiliation(s)
- Pascual García-Pérez
- Agrobiotech for Health, Plant Biology and Soil Science Department, Faculty of Biology, University of Vigo, Vigo, Spain
- Sustainable Food Process Department, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Eva Lozano-Milo
- Agrobiotech for Health, Plant Biology and Soil Science Department, Faculty of Biology, University of Vigo, Vigo, Spain
- Cluster de Investigación y Transferencia Agroalimentaria del Campus da Auga (CITACA), University of Vigo, Orense Campus, Ourense, Spain
| | - Leilei Zhang
- Sustainable Food Process Department, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Begoña Miras-Moreno
- Sustainable Food Process Department, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Mariana Landin
- Pharmacology, Pharmacy, and Pharmaceutical Technology Department, I+D Farma (GI-1645), Faculty of Pharmacy, Instituto de Materiales de la Universidade de Santiago de Compostela (iMATUS) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Luigi Lucini
- Agrobiotech for Health, Plant Biology and Soil Science Department, Faculty of Biology, University of Vigo, Vigo, Spain
| | - Pedro P. Gallego
- Agrobiotech for Health, Plant Biology and Soil Science Department, Faculty of Biology, University of Vigo, Vigo, Spain
- Cluster de Investigación y Transferencia Agroalimentaria del Campus da Auga (CITACA), University of Vigo, Orense Campus, Ourense, Spain
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Garcia‐del Rio L, Diaz‐Rodriguez P, Pedersen GK, Christensen D, Landin M. Sublingual Boosting with a Novel Mucoadhesive Thermogelling Hydrogel Following Parenteral CAF01 Priming as a Strategy Against
Chlamydia trachomatis
(Adv. Healthcare Mater. 11/2022). Adv Healthc Mater 2022. [DOI: 10.1002/adhm.202270055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Garcia‐del Rio L, Diaz‐Rodriguez P, Pedersen GK, Christensen D, Landin M. Sublingual Boosting with a Novel Mucoadhesive Thermogelling Hydrogel Following Parenteral CAF01 Priming as a Strategy Against Chlamydia trachomatis. Adv Healthc Mater 2022; 11:e2102508. [PMID: 35124896 DOI: 10.1002/adhm.202102508] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/18/2022] [Indexed: 01/13/2023]
Abstract
Chlamydia trachomatis is the most prevalent sexually transmitted disease of bacterial origin. The high number of asymptomatic cases makes it difficult to stop the transmission, requiring vaccine development. Herein, a strategy is proposed to obtain local genital tract immunity against C. trachomatis through parenteral prime and sublingual boost. Subcutaneous administration of chlamydia CTH522 subunit vaccine loaded in the adjuvant CAF01 is combined with sublingual administration of CTH522 loaded in a novel thermosensitive and mucoadhesive hydrogel. Briefly, a ternary optimized hydrogel (OGEL) with desirable biological and physicochemical properties is obtained using artificial intelligence techniques. This formulation exhibits a high gel strength and a strong mucoadhesive, adhesive and cohesive nature. The thermosensitive properties of the hydrogel facilitate application under the tongue. Meanwhile the fast gelation at body temperature together with rapid antigen release should avoid CTH522 leakage by swallowing and increase the contact with sublingual tissue, thus promoting absorption. In vivo studies demonstrate that parenteral-sublingual prime-boost immunization, using CAF01 and OGEL as CTH522 vaccine carriers, shows a tendency to increase cellular (Th1/Th17) immune responses when compared to mucosal or parenteral vaccination alone. Furthermore, parenteral prime with CAF01/CTH522 followed by sublingual boosting with OGEL/CTH522 elicits a local IgA response in the genital tract.
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Affiliation(s)
- Lorena Garcia‐del Rio
- Departamento de Farmacología Farmacia y Tecnología Farmacéutica Grupo I+D Farma (GI‐1645) Agrupación Estratégica de Materiales (AeMat) Facultad de Farmacia Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS) IDIS Research Institute Santiago de Compostela 15706 Spain
| | - Patricia Diaz‐Rodriguez
- Departamento de Farmacología Farmacia y Tecnología Farmacéutica Grupo I+D Farma (GI‐1645) Agrupación Estratégica de Materiales (AeMat) Facultad de Farmacia Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS) IDIS Research Institute Santiago de Compostela 15706 Spain
| | - Gabriel Kristian Pedersen
- Department of Infectious Disease Immunology Statens Serum Institut Artillerivej 5 Copenhagen S 2300 Denmark
| | - Dennis Christensen
- Department of Infectious Disease Immunology Statens Serum Institut Artillerivej 5 Copenhagen S 2300 Denmark
| | - Mariana Landin
- Departamento de Farmacología Farmacia y Tecnología Farmacéutica Grupo I+D Farma (GI‐1645) Agrupación Estratégica de Materiales (AeMat) Facultad de Farmacia Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS) IDIS Research Institute Santiago de Compostela 15706 Spain
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Arteta TA, Hameg R, Landin M, Gallego PP, Barreal ME. Artificial Neural Networks Elucidated the Essential Role of Mineral Nutrients versus Vitamins and Plant Growth Regulators in Achieving Healthy Micropropagated Plants. Plants (Basel) 2022; 11:1284. [PMID: 35631709 PMCID: PMC9146087 DOI: 10.3390/plants11101284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
The design of an adequate culture medium is an essential step in the micropropagation process of plant species. Adjustment and balance of medium components involve the interaction of several factors, such as mineral nutrients, vitamins, and plant growth regulators (PGRs). This work aimed to shed light on the role of these three components on the plant growth and quality of micropropagated woody plants, using Actinidia arguta as a plant model. Two experiments using a five-dimensional experimental design space were defined using the Design of Experiments (DoE) method, to study the effect of five mineral factors (NH4NO3, KNO3, Mesos, Micros, and Iron) and five vitamins (Myo-inositol, thiamine, nicotinic acid, pyridoxine, and vitamin E). A third experiment, using 20 combinations of two PGRs: BAP (6-benzylaminopurine) and GA3 (gibberellic acid) was performed. Artificial Neural Networks (ANNs) algorithms were used to build models with the whole database to determine the effect of those components on several growth and quality parameters. Neurofuzzy logic allowed us to decipher and generate new knowledge on the hierarchy of some minerals as essential components of the culture media over vitamins and PRGs, suggesting rules about how MS basal media formulation could be modified to assess the quality of micropropagated woody plants.
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Affiliation(s)
- Tomás A. Arteta
- Agrobiotech for Health, Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, 36310 Vigo, Spain; (T.A.A.); (R.H.)
- CITACA—Agri-Food Research and Transfer Cluster, Campus da Auga, University of Vigo, 32004 Ourense, Spain
| | - Radhia Hameg
- Agrobiotech for Health, Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, 36310 Vigo, Spain; (T.A.A.); (R.H.)
- CITACA—Agri-Food Research and Transfer Cluster, Campus da Auga, University of Vigo, 32004 Ourense, Spain
| | - Mariana Landin
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Faculty of Pharmacy, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Pedro P. Gallego
- Agrobiotech for Health, Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, 36310 Vigo, Spain; (T.A.A.); (R.H.)
- CITACA—Agri-Food Research and Transfer Cluster, Campus da Auga, University of Vigo, 32004 Ourense, Spain
| | - M. Esther Barreal
- Agrobiotech for Health, Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, 36310 Vigo, Spain; (T.A.A.); (R.H.)
- CITACA—Agri-Food Research and Transfer Cluster, Campus da Auga, University of Vigo, 32004 Ourense, Spain
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García-Pérez P, Zhang L, Miras-Moreno B, Lozano-Milo E, Landin M, Lucini L, Gallego PP. The Combination of Untargeted Metabolomics and Machine Learning Predicts the Biosynthesis of Phenolic Compounds in Bryophyllum Medicinal Plants (Genus Kalanchoe). Plants (Basel) 2021; 10:plants10112430. [PMID: 34834793 PMCID: PMC8620224 DOI: 10.3390/plants10112430] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
Phenolic compounds constitute an important family of natural bioactive compounds responsible for the medicinal properties attributed to Bryophyllum plants (genus Kalanchoe, Crassulaceae), but their production by these medicinal plants has not been characterized to date. In this work, a combinatorial approach including plant tissue culture, untargeted metabolomics, and machine learning is proposed to unravel the critical factors behind the biosynthesis of phenolic compounds in these species. The untargeted metabolomics revealed 485 annotated compounds that were produced by three Bryophyllum species cultured in vitro in a genotype and organ-dependent manner. Neurofuzzy logic (NFL) predictive models assessed the significant influence of genotypes and organs and identified the key nutrients from culture media formulations involved in phenolic compound biosynthesis. Sulfate played a critical role in tyrosol and lignan biosynthesis, copper in phenolic acid biosynthesis, calcium in stilbene biosynthesis, and magnesium in flavanol biosynthesis. Flavonol and anthocyanin biosynthesis was not significantly affected by mineral components. As a result, a predictive biosynthetic model for all the Bryophyllum genotypes was proposed. The combination of untargeted metabolomics with machine learning provided a robust approach to achieve the phytochemical characterization of the previously unexplored species belonging to the Bryophyllum subgenus, facilitating their biotechnological exploitation as a promising source of bioactive compounds.
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Affiliation(s)
- Pascual García-Pérez
- Agrobiotech for Health Group, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, E-36310 Vigo, Spain; (P.G.-P.); (E.L.-M.); (P.P.G.)
- CITACA—Agri-Food Research and Transfer Cluster, University of Vigo, E-32004 Ourense, Spain
| | - Leilei Zhang
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy; (L.Z.); (B.M.-M.)
| | - Begoña Miras-Moreno
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy; (L.Z.); (B.M.-M.)
| | - Eva Lozano-Milo
- Agrobiotech for Health Group, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, E-36310 Vigo, Spain; (P.G.-P.); (E.L.-M.); (P.P.G.)
- CITACA—Agri-Food Research and Transfer Cluster, University of Vigo, E-32004 Ourense, Spain
| | - Mariana Landin
- I+D Farma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain;
- Health Research Institute of Santiago de Compostela (IDIS), E-15706 Santiago de Compostela, Spain
| | - Luigi Lucini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy; (L.Z.); (B.M.-M.)
| | - Pedro P. Gallego
- Agrobiotech for Health Group, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, E-36310 Vigo, Spain; (P.G.-P.); (E.L.-M.); (P.P.G.)
- CITACA—Agri-Food Research and Transfer Cluster, University of Vigo, E-32004 Ourense, Spain
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Maleki S, Maleki Zanjani B, Kohnehrouz BB, Landin M, Gallego PP. Computer-Based Tools Unmask Critical Mineral Nutrient Interactions in Hoagland Solution for Healthy Kiwiberry Plant Acclimatization. Front Plant Sci 2021; 12:723992. [PMID: 34777411 PMCID: PMC8580943 DOI: 10.3389/fpls.2021.723992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
The aim of this study was to better understand the response of ex vitro acclimatized plants grown to a set of mineral nutrient combinations based on Hoagland solution. To reach that, two computer-based tools were used: the design of experiments (DOE) and a hybrid artificial intelligence technology that combines artificial neural networks with fuzzy logic. DOE was employed to create a five-dimensional IV-design space by categorizing all macroelements and one microelement (copper) of Hoagland mineral solution, reducing the experimental design space from 243 (35) to 19 treatments. Typical growth parameters included hardening efficiency (Hard), newly formed shoot length (SL), total leaf number (TLN), leaf chlorophyll content (LCC), and leaf area (LA). Moreover, three physiological disorders, namely, leaf necrosis (LN), leaf spot (LS), and curled leaf (CL), were evaluated for each treatment (mineral formulation). All the growth parameters plus LN were successfully modeled using neuro-fuzzy logic with a high train set R 2 between experimental and predicted values (72.67 < R 2 < 98.79). The model deciphered new insights using different sets of "IF-THEN" rules, pinpointing the positive role of Mg2+ and Ca2+ to improve Hard, SL, TLN, and LA and alleviate LN but with opposite influences on LCC. On the contrary, TLN and LCC were negatively affected by the addition of NO3 - into the media, while NH4 + in complex interaction with Cu2+ or Mg2+ positively enhanced SL, TLN, LCC, and LA. In our opinion, the approach and results achieved in this work are extremely fruitful to understand the effect of Hoagland mineral nutrients on the healthy growth of ex vitro acclimatized plants, through identifying key factors, which favor growth and limit physiological abnormalities.
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Affiliation(s)
- Sara Maleki
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
- Agrobiotech for Health, Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, Vigo, Spain
| | - Bahram Maleki Zanjani
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
| | | | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology Department, Grupo I+D Farma (GI-1645), Faculty of Pharmacy, University of Santiago, Santiago de Compostela, Spain
| | - Pedro Pablo Gallego
- Agrobiotech for Health, Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, Vigo, Spain
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Diaz-Rodriguez P, Mariño C, Vázquez JA, Caeiro-Rey JR, Landin M. Targeting joint inflammation for osteoarthritis management through stimulus-sensitive hyaluronic acid based intra-articular hydrogels. Mater Sci Eng C Mater Biol Appl 2021; 128:112254. [PMID: 34474816 DOI: 10.1016/j.msec.2021.112254] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/19/2021] [Accepted: 06/08/2021] [Indexed: 12/20/2022]
Abstract
Numerous therapeutic strategies have been developed for osteoarthritis (OA) management, including intra-articular (IA) injections. The ideal IA formulation should control cartilage degradation and restore synovial fluid viscosity. To this end, we propose to combine thermo-sensitive polymers (poloxamers) with hyaluronic acid (HA) to develop suitable beta-lapachone (βLap) loaded IA formulations. The development of IA formulations with these components entails several difficulties: low βLap solubility, unknown βLap therapeutic dose and the bonded commitment of easy administration and viscosupplementation. An optimized formulation was designed using artificial intelligence tools based on the experimental results of a wide variety of hydrogels and its therapeutic capacity was evaluated on an ex vivo OA model. The formulation presented excellent rheological properties and significantly decreased the secretion of degradative (MMP13) and pro-inflammatory (CXCL8) molecules. Therefore, the developed formulation is a promising candidate for OA treatment restoring the synovial fluid rheological properties while decreasing inflammation and cartilage degradation.
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Affiliation(s)
- Patricia Diaz-Rodriguez
- R+D Pharma Group (GI-1645) Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, Santiago de Compostela, Spain; Drug Delivery Systems Group, Department of Chemical Engineering and Pharmaceutical Technology, School of Pharmacy, Universidad de La Laguna, La Laguna, Spain.
| | - Cibrán Mariño
- R+D Pharma Group (GI-1645) Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Jose Antonio Vázquez
- Group of Recycling and Valorisation of Waste Materials (REVAL), Marine Research Institute (IIM-CSIC), Vigo, Spain
| | - Jose Ramon Caeiro-Rey
- Department of Orthopaedic Surgery and Traumatology, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Mariana Landin
- R+D Pharma Group (GI-1645) Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
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Rouco H, Diaz-Rodriguez P, Guillin A, Remuñán-López C, Landin M. A Traffic Light System to Maximize Carbohydrate Cryoprotectants' Effectivity in Nanostructured Lipid Carriers' Lyophilization. Pharmaceutics 2021; 13:pharmaceutics13091330. [PMID: 34575406 PMCID: PMC8470209 DOI: 10.3390/pharmaceutics13091330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/16/2021] [Accepted: 08/20/2021] [Indexed: 12/28/2022] Open
Abstract
Lyophilization is often employed to transform nanoparticle suspensions to stable solid forms. This work proposed Neurofuzzy Logic (NFL) to better understand the lyophilization process of Nanostructured Lipid Carriers’ (NLCs) dispersions and the carbohydrate cryoprotectants’ (CPs) performance in these processes. NLCs were produced by hot homogenization, frozen at different speeds, and lyophilized using several CPs at variable concentrations. NLCs were characterized, and results were expressed as increase in particle size (Δ size), polydispersity (Δ PdI), and zeta potential (Δ ZP) of lyophilized powders (LP) regarding initial dispersions. CPs were classified according to their molecular weights (MW), and the osmolarities (Π) of CPs solutions were also determined. Databases obtained were finally modelled through FormRules® (Intelligensys Ltd., Kirkwall, Scotland, UK), an NFL software. NFL models revealed that CPs’ MW determines the optimal freezing conditions and CPs’ proportions. The knowledge generated allowed the establishment of a traffic light system intended to successfully select and apply sugars for nanoparticles lyophilization.
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Affiliation(s)
- Helena Rouco
- R+D Pharma Group (GI-1645), Strategic Grouping in Materials (AEMAT), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Campus Vida, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (H.R.); (A.G.)
| | - Patricia Diaz-Rodriguez
- R+D Pharma Group (GI-1645), Strategic Grouping in Materials (AEMAT), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Campus Vida, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (H.R.); (A.G.)
- Drug Delivery Systems Group, Department of Chemical Engineering and Pharmaceutical Technology, Campus de Anchieta, School of Sciences, Universidad de La Laguna (ULL), 38200 La Laguna, Spain
- Correspondence: (P.D.-R.); (M.L.)
| | - Alba Guillin
- R+D Pharma Group (GI-1645), Strategic Grouping in Materials (AEMAT), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Campus Vida, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (H.R.); (A.G.)
| | - Carmen Remuñán-López
- NanoBiofar Group (GI-1643), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Campus Vida, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Mariana Landin
- R+D Pharma Group (GI-1645), Strategic Grouping in Materials (AEMAT), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Campus Vida, Faculty of Pharmacy, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (H.R.); (A.G.)
- Correspondence: (P.D.-R.); (M.L.)
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12
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Sendon-Lago J, Rio LGD, Eiro N, Diaz-Rodriguez P, Avila L, Gonzalez LO, Vizoso FJ, Perez-Fernandez R, Landin M. Tailored Hydrogels as Delivery Platforms for Conditioned Medium from Mesenchymal Stem Cells in a Model of Acute Colitis in Mice. Pharmaceutics 2021; 13:pharmaceutics13081127. [PMID: 34452089 PMCID: PMC8400526 DOI: 10.3390/pharmaceutics13081127] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/20/2022] Open
Abstract
Inflammatory bowel disease (IBD), including Crohn’s disease (CD) and ulcerative colitis (UC), is increasingly prevalent and current therapies are not completely effective. Mesenchymal stem cells are emerging as a promising therapeutic option. Here, the effect of local hydrogel application loaded with conditioned medium (CM) from human uterine cervical stem cells (hUCESC-CM) in an experimental acute colitis mice model has been evaluated. Colitis induction was carried out in C57BL/6 mice by dissolving dextran sulfate sodium (DSS) in drinking water for nine days. Ulcers were treated by rectal administration of either mesalazine (as positive control) or a mucoadhesive and thermosensitive hydrogel loaded with hUCESC-CM (H-hUCESC-CM). Body weight changes, colon length, and histopathological analysis were evaluated. In addition, pro-inflammatory TNF-α, IL-6, and IFN-γ mRNA levels were measured by qPCR. Treatment with H-hUCESC-CM inhibited body weight loss and colon shortening and induced a significant decrease in colon mucosa degeneration, as well as TNF-α, IFN-γ, and IL-6 mRNA levels. Results indicate that H-hUCESC-CM effectively alleviated DSS-induced colitis in mice, suggesting that H-hUCESC-CM may represent an attractive cell-free therapy for local treatment of IBD.
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Affiliation(s)
- Juan Sendon-Lago
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Physiology, Universidade de Santiago de Compostela, Avda. de Barcelona 22, 15706 Santiago de Compostela, Spain; (J.S.-L.); (L.A.)
| | - Lorena Garcia-del Rio
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (L.G.-d.R.); (P.D.-R.)
| | - Noemi Eiro
- Research Unit, Hospital Fundación de Jove, Avda. Eduardo de Castro 161, 33290 Gijón, Spain; (N.E.); (L.O.G.)
| | - Patricia Diaz-Rodriguez
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (L.G.-d.R.); (P.D.-R.)
| | - Leandro Avila
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Physiology, Universidade de Santiago de Compostela, Avda. de Barcelona 22, 15706 Santiago de Compostela, Spain; (J.S.-L.); (L.A.)
| | - Luis O. Gonzalez
- Research Unit, Hospital Fundación de Jove, Avda. Eduardo de Castro 161, 33290 Gijón, Spain; (N.E.); (L.O.G.)
| | - Francisco J. Vizoso
- Research Unit, Hospital Fundación de Jove, Avda. Eduardo de Castro 161, 33290 Gijón, Spain; (N.E.); (L.O.G.)
- Correspondence: (F.J.V.); (R.P.-F.); (M.L.)
| | - Roman Perez-Fernandez
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Department of Physiology, Universidade de Santiago de Compostela, Avda. de Barcelona 22, 15706 Santiago de Compostela, Spain; (J.S.-L.); (L.A.)
- Correspondence: (F.J.V.); (R.P.-F.); (M.L.)
| | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (L.G.-d.R.); (P.D.-R.)
- Correspondence: (F.J.V.); (R.P.-F.); (M.L.)
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13
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Jara MO, Landin M, Morales JO. Screening of critical variables in fabricating polycaprolactone nanoparticles using Neuro Fuzzy Logic. Int J Pharm 2021; 601:120558. [PMID: 33831482 DOI: 10.1016/j.ijpharm.2021.120558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/16/2021] [Accepted: 03/27/2021] [Indexed: 12/16/2022]
Abstract
In this work, we used the artificial intelligence tool known as neurofuzzy logic (NFL) for fabricating uniform nanoparticles of polycaprolactone by the nanoprecipitation method with a focus on stabilizer selection. The adaptability of NFL assisted the decision-making on different manufacturing and formulation conditions. The nanoprecipitation method can be summarized as mixing a poorly water-soluble polymer solution with water and its consequent precipitation. Although nanoprecipitation seems simple, the process is highly variable to even slight modifications, leading to polydispersity and nanoparticle aggregation. Here, the NFL model established relationships between mixing conditions, different stabilizers and solvents, among other parameters. Seven parameters measured by dynamic light scattering and laser doppler electrophoresis were modelized with high predictability using NFL tool, as a function of the raw materials and operation conditions. The model allowed the principal component analysis to be carried out, showing that the selection of a stabilizer is the most critical parameter for avoiding nanoparticle aggregation. Then, inputs related to fluid dynamics were relevant to tune the characteristics of the stabilized nanoparticles even further. NFL model showed great potential to support pharmaceutical research by finding subtle relationships between several variables, even from incomplete or fragmented data, which is common in pharmaceutical development.
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Affiliation(s)
- Miguel O Jara
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santos Dumont 964, 4to piso, Of. 09, Independencia, 8380494 Santiago, Chile; Molecular Pharmaceutics and Drug Delivery Division, College of Pharmacy, The University of Texas at Austin, 2409 University Avenue, 78712 Austin, TX, USA(1)
| | - Mariana Landin
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, and Health Research Institute of Santiago De Compostela (IDIS) Universidade de Santiago de Compostela-Campus Vida, 15782 Santiago de Compostela, Spain
| | - Javier O Morales
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santos Dumont 964, 4to piso, Of. 09, Independencia, 8380494 Santiago, Chile; Advanced Center for Chronic Diseases (ACCDiS), 8380494 Santiago, Chile; Center of New Drugs for Hypertension (CENDHY), 8380494 Santiago, Chile.
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García-García P, Briffault E, Landin M, Evora C, Diaz-Rodriguez P, Delgado A. Tailor-made oligonucleotide-loaded lipid-polymer nanosystems designed for bone gene therapy. Drug Deliv Transl Res 2021; 11:598-607. [PMID: 33625680 DOI: 10.1007/s13346-021-00926-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2021] [Indexed: 12/17/2022]
Abstract
Gene therapy has emerged as a tool for the treatment of systemic metabolic disorders as osteoporosis (OP). However, the design of a suitable vehicle able to efficiently load and release the genetic material on the target cells is still a challenge. Moreover, the internalization pathway of nanosystems has been described to be dependent on their surface characteristics and the cell type evaluated. In this study, we aim at obtaining PEGylated lipid-PLGA nanoparticles (NPs) with variable surface charge able to incorporate GapmeRs (single-strand antisense oligonucleotides) for OP treatment. Nanoparticles showing negative, positive, and neutral surface charge were obtained by modulating the lipid composition. All formulations showed a remarkably low polydispersity index with adequate size. NPs were loaded with GapmeRs showing a high encapsulation efficiency and a surface charge-independent oligonucleotide loading. All the formulations were adequately internalized by MSCs. Future experiments will be devoted to use the developed formulations to clarify if the intracellular distribution of hybrid NPs on mesenchymal stem cells (MSCs) is dependent on surface charge. This portfolio of NPs will serve as a tool to analyze the effect of NP surface charge on gene therapy efficiency.
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Affiliation(s)
- Patricia García-García
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, 38200, La Laguna, Spain
| | - Erik Briffault
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, 38200, La Laguna, Spain
| | - Mariana Landin
- R+D Pharma Group (GI-1645); Strategic Grouping in Materials (AEMAT)Department of Pharmacology, Pharmacy and Pharmaceutical TechnologyFaculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782, Santiago de Compostela, Spain
| | - Carmen Evora
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, 38200, La Laguna, Spain.,Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, 38200, La Laguna, Spain
| | - Patricia Diaz-Rodriguez
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, 38200, La Laguna, Spain. .,Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, 38200, La Laguna, Spain.
| | - Araceli Delgado
- Department of Chemical Engineering and Pharmaceutical Technology, Universidad de La Laguna, 38200, La Laguna, Spain. .,Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, 38200, La Laguna, Spain.
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Garcia-Del Rio L, Diaz-Rodriguez P, Landin M. Design of novel orotransmucosal vaccine-delivery platforms using artificial intelligence. Eur J Pharm Biopharm 2020; 159:36-43. [PMID: 33383169 DOI: 10.1016/j.ejpb.2020.12.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/14/2020] [Accepted: 12/21/2020] [Indexed: 12/21/2022]
Abstract
The linings of the oral cavity are excellent needle-free vaccination sites, able to induce immune responses at distal sites and confer systemic protection. However, owing to the mucosal tissues' intrinsic characteristics, the design of effective antigen-delivery systems is not an easy task. In the present work, we propose to develop and characterize thermosensitive and mucoadhesive hydrogels for orotransmucosal vaccination taking advantage of artificial intelligence tools (AIT). Hydrogels of variable composition were obtained combining Pluronic® F127 (PF127), Hybrane® S1200 (HS1200) and Gantrez® AN119 (AN119) or S97 (S97). Systems were characterized in terms of physicochemical properties, adhesion capacity to mucosal tissues and antigen-like microspheres release. Additionally, polymers biocompatibility and their immune-stimulation capacity was assessed in human macrophages. Interestingly, cells treated with HS1200 exhibited a significant proliferation enhancement compared to control. The use of AIT allowed to determine the effect of each polymer on formulations properties. The proportions of PF127 and Gantrez® are mainly the factors controlling gelation temperature, mucoadhesion, adhesion work and gel strength. Meanwhile, cohesion and short-term microsphere release are dependent on the PF127 concentration. However, long-term microsphere release varies depending on the Gantrez® variety and the PF127 concentration used. Hydrogels prepared with S97 showed slower microsphere release. The use of AIT allowed to establish the conditions able to produce ternary hydrogels with immune-stimulatory properties together with adequate mucoadhesion capacity and antigen-like microspheres release.
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Affiliation(s)
- Lorena Garcia-Del Rio
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Grupo I+D Farma (GI-1645), AeMat, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706 Santiago de Compostela, Spain
| | - Patricia Diaz-Rodriguez
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de La Laguna, Campus Anchieta, La Laguna 38200, Spain; Institute of Biomedical Technologies (ITB), Center for Biomedical Research of the Canary Islands (CIBICAN), Universidad de La Laguna, 38200 La Laguna, Spain.
| | - Mariana Landin
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Grupo I+D Farma (GI-1645), AeMat, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), IDIS Research Institute, 15706 Santiago de Compostela, Spain
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16
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García-Pérez P, Lozano-Milo E, Landin M, Gallego PP. From Ethnomedicine to Plant Biotechnology and Machine Learning: The Valorization of the Medicinal Plant Bryophyllum sp. Pharmaceuticals (Basel) 2020; 13:ph13120444. [PMID: 33291844 PMCID: PMC7762000 DOI: 10.3390/ph13120444] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 12/18/2022]
Abstract
The subgenus Bryophyllum includes about 25 plant species native to Madagascar, and is widely used in traditional medicine worldwide. Different formulations from Bryophyllum have been employed for the treatment of several ailments, including infections, gynecological disorders, and chronic diseases, such as diabetes, neurological and neoplastic diseases. Two major families of secondary metabolites have been reported as responsible for these bioactivities: phenolic compounds and bufadienolides. These compounds are found in limited amounts in plants because they are biosynthesized in response to different biotic and abiotic stresses. Therefore, novel approaches should be undertaken with the aim of achieving the phytochemical valorization of Bryophyllum sp., allowing a sustainable production that prevents from a massive exploitation of wild plant resources. This review focuses on the study of phytoconstituents reported on Bryophyllum sp.; the application of plant tissue culture methodology as a reliable tool for the valorization of bioactive compounds; and the application of machine learning technology to model and optimize the full phytochemical potential of Bryophyllum sp. As a result, Bryophyllum species can be considered as a promising source of plant bioactive compounds, with enormous antioxidant and anticancer potential, which could be used for their large-scale biotechnological exploitation in cosmetic, food, and pharmaceutical industries.
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Affiliation(s)
- Pascual García-Pérez
- Applied Plant & Soil Biology, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, E-36310 Vigo, Spain; (P.G.-P.); (E.L.-M.)
- CITACA—Agri-Food Research and Transfer Cluster, University of Vigo, E-32004 Ourense, Spain
| | - Eva Lozano-Milo
- Applied Plant & Soil Biology, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, E-36310 Vigo, Spain; (P.G.-P.); (E.L.-M.)
- CITACA—Agri-Food Research and Transfer Cluster, University of Vigo, E-32004 Ourense, Spain
| | - Mariana Landin
- Pharmacology, Pharmacy and Pharmaceutical Technology Department, Grupo I+D Farma (GI-1645), Pharmacy Faculty, University of Santiago, E-15782 Santiago de Compostela, Spain;
- Health Research Institute of Santiago de Compostela (IDIS), E-15782 Santiago de Compostela, Spain
| | - Pedro P. Gallego
- Applied Plant & Soil Biology, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, E-36310 Vigo, Spain; (P.G.-P.); (E.L.-M.)
- CITACA—Agri-Food Research and Transfer Cluster, University of Vigo, E-32004 Ourense, Spain
- Correspondence:
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Rouco H, Diaz-Rodriguez P, Gaspar DP, Gonçalves LMD, Cuerva M, Remuñán-López C, Almeida AJ, Landin M. Rifabutin-Loaded Nanostructured Lipid Carriers as a Tool in Oral Anti-Mycobacterial Treatment of Crohn's Disease. Nanomaterials (Basel) 2020; 10:E2138. [PMID: 33121030 PMCID: PMC7692220 DOI: 10.3390/nano10112138] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/20/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022]
Abstract
Oral anti-mycobacterial treatment of Crohn's disease (CD) is limited by the low aqueous solubility of drugs, along with the altered gut conditions of patients, making uncommon their clinical use. Hence, the aim of the present work is focused on the in vitro evaluation of rifabutin (RFB)-loaded Nanostructured lipid carriers (NLC), in order to solve limitations associated to this therapeutic approach. RFB-loaded NLC were prepared by hot homogenization and characterized in terms of size, polydispersity, surface charge, morphology, thermal stability, and drug payload and release. Permeability across Caco-2 cell monolayers and cytotoxicity and uptake in human macrophages was also determined. NLC obtained were nano-sized, monodisperse, negatively charged, and spheroidal-shaped, showing a suitable drug payload and thermal stability. Furthermore, the permeability profile, macrophage uptake and selective intracellular release of RFB-loaded NLC, guarantee an effective drug dose administration to cells. Outcomes suggest that rifabutin-loaded NLC constitute a promising strategy to improve oral anti-mycobacterial therapy in Crohn's disease.
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Affiliation(s)
- Helena Rouco
- R+D Pharma Group (GI-1645), Strategic Grouping in Materials (AEMAT), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782 Santiago de Compostela, Spain;
| | - Patricia Diaz-Rodriguez
- Drug Delivery Systems Group, Department of Chemical Engineering and Pharmaceutical Technology, School of Sciences, Universidad de La Laguna (ULL), Campus de Anchieta, 38200 La Laguna (Tenerife), Spain;
| | - Diana P. Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (D.P.G.); (L.M.D.G.); (A.J.A.)
| | - Lídia M. D. Gonçalves
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (D.P.G.); (L.M.D.G.); (A.J.A.)
| | - Miguel Cuerva
- Department of Physical Chemistry, Nanomag laboratory, Universidade de Santiago de Compostela-Campus Vida, 15782 Santiago de Compostela, Spain;
| | - Carmen Remuñán-López
- Nanobiofar Group (GI-1643), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782 Santiago de Compostela, Spain;
| | - António J. Almeida
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (D.P.G.); (L.M.D.G.); (A.J.A.)
| | - Mariana Landin
- R+D Pharma Group (GI-1645), Strategic Grouping in Materials (AEMAT), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782 Santiago de Compostela, Spain;
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López-Iglesias C, López ER, Fernández J, Landin M, García-González CA. Modeling of the Production of Lipid Microparticles Using PGSS ® Technique. Molecules 2020; 25:molecules25214927. [PMID: 33114452 PMCID: PMC7663659 DOI: 10.3390/molecules25214927] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/16/2020] [Accepted: 10/23/2020] [Indexed: 11/16/2022] Open
Abstract
Solid lipid microparticles (SLMPs) are attractive carriers as delivery systems as they are stable, easy to manufacture and can provide controlled release of bioactive agents and increase their efficacy and/or safety. Particles from Gas-Saturated Solutions (PGSS®) technique is a solvent-free technology to produce SLMPs, which involves the use of supercritical CO2 (scCO2) at mild pressures and temperatures for the melting of lipids and atomization into particles. The determination of the key processing variables is crucial in PGSS® technique to obtain reliable and reproducible microparticles, therefore the modelling of SLMPs production process and variables control are of great interest to obtain quality therapeutic systems. In this work, the melting point depression of a commercial lipid (glyceryl monostearate, GMS) under compressed CO2 was studied using view cell experiments. Based on an unconstrained D-optimal design for three variables (nozzle diameter, temperature and pressure), SLMPs were produced using the PGSS® technique. The yield of production was registered and the particles characterized in terms of particle size distribution. Variable modeling was carried out using artificial neural networks and fuzzy logic integrated into neurofuzzy software. Modeling results highlight the main effect of temperature to tune the mean diameter SLMPs, whereas the pressure-nozzle diameter interaction is the main responsible in the SLMPs size distribution and in the PGSS® production yield.
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Affiliation(s)
- Clara López-Iglesias
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
- Correspondence: (C.L.-I.); (C.A.G.-G.); Tel.: +34-881-814-882 (C.L.-I. & C.A.G.-G.)
| | - Enriqueta R. López
- Laboratorio de Propiedades Termofísicas, Grupo NaFoMat, Departamento de Física Aplicada, Facultad de Física, Agrupación Estratégica de Materiales (AeMAT), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (E.R.L.); (J.F.)
| | - Josefa Fernández
- Laboratorio de Propiedades Termofísicas, Grupo NaFoMat, Departamento de Física Aplicada, Facultad de Física, Agrupación Estratégica de Materiales (AeMAT), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain; (E.R.L.); (J.F.)
| | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Carlos A. García-González
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain;
- Correspondence: (C.L.-I.); (C.A.G.-G.); Tel.: +34-881-814-882 (C.L.-I. & C.A.G.-G.)
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García-Pérez P, Lozano-Milo E, Landin M, Gallego PP. Machine Learning Unmasked Nutritional Imbalances on the Medicinal Plant Bryophyllum sp. Cultured in vitro. Front Plant Sci 2020; 11:576177. [PMID: 33329638 PMCID: PMC7729169 DOI: 10.3389/fpls.2020.576177] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 11/06/2020] [Indexed: 05/20/2023]
Abstract
Plant nutrition is a crucial factor that is usually underestimated when designing plant in vitro culture protocols of unexploited plants. As a complex multifactorial process, the study of nutritional imbalances requires the use of time-consuming experimental designs and appropriate statistical and multiple regression analysis for the determination of critical parameters, whose results may be difficult to interpret when the number of variables is large. The use of machine learning (ML) supposes a cutting-edge approach to investigate multifactorial processes, with the aim of detecting non-linear relationships and critical factors affecting a determined response and their concealed interactions. Thus, in this work we applied artificial neural networks coupled to fuzzy logic, known as neurofuzzy logic, to determine the critical factors affecting the mineral nutrition of medicinal plants belonging to Bryophyllum subgenus cultured in vitro. The application of neurofuzzy logic algorithms facilitate the interpretation of the results, as the technology is able to generate useful and understandable "IF-THEN" rules, that provide information about the factor(s) involved in a certain response. In this sense, ammonium, sulfate, molybdenum, copper and sodium were the most important nutrients that explain the variation in the in vitro culture establishment of the medicinal plants in a species-dependent manner. Thus, our results indicate that Bryophyllum spp. display a fine-tuning regulation of mineral nutrition, that was reported for the first time under in vitro conditions. Overall, neurofuzzy model was able to predict and identify masked interactions among such factors, providing a source of knowledge (helpful information) from the experimental data (non-informative per se), in order to make the exploitation and valorization of medicinal plants with high phytochemical potential easier.
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Affiliation(s)
- Pascual García-Pérez
- Applied Plant and Soil Biology, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, Vigo, Spain
- Clúster de Investigación e Transferencia Agroalimentaria do Campus da Auga - Agri-Food Research and Transfer Cluster, University of Vigo, Ourense, Spain
| | - Eva Lozano-Milo
- Applied Plant and Soil Biology, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, Vigo, Spain
- Clúster de Investigación e Transferencia Agroalimentaria do Campus da Auga - Agri-Food Research and Transfer Cluster, University of Vigo, Ourense, Spain
| | - Mariana Landin
- Grupo I+D Farma (GI-1645), AeMat, Pharmacology, Pharmacy and Pharmaceutical Technology Department, Pharmacy Faculty, University of Santiago, Santiago de Compostela, Spain
- Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Pedro Pablo Gallego
- Applied Plant and Soil Biology, Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, Vigo, Spain
- Clúster de Investigación e Transferencia Agroalimentaria do Campus da Auga - Agri-Food Research and Transfer Cluster, University of Vigo, Ourense, Spain
- *Correspondence: Pedro Pablo Gallego
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Hameg R, Arteta TA, Landin M, Gallego PP, Barreal ME. Modeling and Optimizing Culture Medium Mineral Composition for in vitro Propagation of Actinidia arguta. Front Plant Sci 2020; 11:554905. [PMID: 33424873 PMCID: PMC7785940 DOI: 10.3389/fpls.2020.554905] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 12/01/2020] [Indexed: 05/20/2023]
Abstract
The design of plant tissue culture media remains a complicated task due to the interactions of many factors. The use of computer-based tools is still very scarce, although they have demonstrated great advantages when used in large dataset analysis. In this study, design of experiments (DOE) and three machine learning (ML) algorithms, artificial neural networks (ANNs), fuzzy logic, and genetic algorithms (GA), were combined to decipher the key minerals and predict the optimal combination of salts for hardy kiwi (Actinidia arguta) in vitro micropropagation. A five-factor experimental design of 33 salt treatments was defined using DOE. Later, the effect of the ionic variations generated by these five factors on three morpho-physiological growth responses - shoot number (SN), shoot length (SL), and leaves area (LA) - and on three quality responses - shoots quality (SQ), basal callus (BC), and hyperhydricity (H) - were modeled and analyzed simultaneously. Neurofuzzy logic models demonstrated that just 11 ions (five macronutrients (N, K, P, Mg, and S) and six micronutrients (Cl, Fe, B, Mo, Na, and I)) out of the 18 tested explained the results obtained. The rules "IF - THEN" allow for easy deduction of the concentration range of each ion that causes a positive effect on growth responses and guarantees healthy shoots. Secondly, using a combination of ANNs-GA, a new optimized medium was designed and the desired values for each response parameter were accurately predicted. Finally, the experimental validation of the model showed that the optimized medium significantly promotes SQ and reduces BC and H compared to standard media generally used in plant tissue culture. This study demonstrated the suitability of computer-based tools for improving plant in vitro micropropagation: (i) DOE to design more efficient experiments, saving time and cost; (ii) ANNs combined with fuzzy logic to understand the cause-effect of several factors on the response parameters; and (iii) ANNs-GA to predict new mineral media formulation, which improve growth response, avoiding morpho-physiological abnormalities. The lack of predictability on some response parameters can be due to other key media components, such as vitamins, PGRs, or organic compounds, particularly glycine, which could modulate the effect of the ions and needs further research for confirmation.
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Affiliation(s)
- Radhia Hameg
- Applied Plant & Soil Biology, Department of Plant Biology and Soil Sciences, Faculty of Biology, University of Vigo, Vigo, Spain
- CITACA - Agri-Food Research and Transfer Cluster, University of Vigo, Ourense, Spain
| | - Tomás A. Arteta
- Applied Plant & Soil Biology, Department of Plant Biology and Soil Sciences, Faculty of Biology, University of Vigo, Vigo, Spain
- CITACA - Agri-Food Research and Transfer Cluster, University of Vigo, Ourense, Spain
| | - Mariana Landin
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI−1645), Facultad de Farmacia y Agrupación Estratégica en Materiales (AeMat), Universidade de Santiago de Compostela, Santiago, Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Pedro P. Gallego
- Applied Plant & Soil Biology, Department of Plant Biology and Soil Sciences, Faculty of Biology, University of Vigo, Vigo, Spain
- CITACA - Agri-Food Research and Transfer Cluster, University of Vigo, Ourense, Spain
- *Correspondence: Pedro P. Gallego,
| | - M. Esther Barreal
- Applied Plant & Soil Biology, Department of Plant Biology and Soil Sciences, Faculty of Biology, University of Vigo, Vigo, Spain
- CITACA - Agri-Food Research and Transfer Cluster, University of Vigo, Ourense, Spain
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Garcia-Del Rio L, Diaz-Rodriguez P, Landin M. New tools to design smart thermosensitive hydrogels for protein rectal delivery in IBD. Mater Sci Eng C Mater Biol Appl 2019; 106:110252. [PMID: 31753360 DOI: 10.1016/j.msec.2019.110252] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 09/13/2019] [Accepted: 09/24/2019] [Indexed: 12/31/2022]
Abstract
Local treatment of Inflammatory Bowel Disease (IBD) has been pointed out to be a novel therapeutic approach with several advantages when compared to conventional therapies. However, the development of systems able to fulfil the requirements of this administration route is not an easy task. The present work suggests the utilization of Artificial Intelligence Tools (AIT) as an instrument to understand polymer-polymer interactions towards obtaining thermosensitive hydrogels suitable for protein rectal administration in IBD. Enemas composed by Pluronic® F127 and F68 and Methocel® K4M were developed and characterised. Two experimental designs were carried out in order to determine the effect of each polymer on their texturometric and rheological behaviour. Using the results of the first experimental design we can justify the inclusion of each raw material PF127, PF68 and MK4M in the formulation and conclude that a compromise solution is necessary to obtain thermosensitive hydrogels of the required properties. The results of the second experimental design allowed concluding that PF127 ruled mainly syringeability and bioadhesion work. On the other hand, PF68 modulated principally gelation temperature, viscosity and protein release from hydrogel matrix. Finally, MK4M influenced bioadhesiveness and mostly determined viscosity. AIT also allowed delimiting the design space to produce easy administrable and highly bioadhesive enemas that undergo fast sol-gel transitions at body temperature.
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Affiliation(s)
- Lorena Garcia-Del Rio
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Facultad de Farmacia, Universidade de Santiago de Compostela-Campus Vida, 15782, Santiago de Compostela, Spain
| | - Patricia Diaz-Rodriguez
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Facultad de Farmacia, Universidade de Santiago de Compostela-Campus Vida, 15782, Santiago de Compostela, Spain; Departament of Chemical Engineering and Pharmaceutical Technology, Facultad de Ciencias de la Salud, Universidad de La Laguna (ULL), Campus de Anchieta, 38200, La Laguna, Spain.
| | - Mariana Landin
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Facultad de Farmacia, Universidade de Santiago de Compostela-Campus Vida, 15782, Santiago de Compostela, Spain
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Cunha-Filho M, Teixeira MT, Santos-Rosales V, Sa-Barreto LL, Marreto RN, Martin-Pastor M, García-González CA, Landin M. The subdivision behavior of polymeric tablets. Int J Pharm 2019; 568:118554. [PMID: 31336153 DOI: 10.1016/j.ijpharm.2019.118554] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/16/2019] [Accepted: 07/19/2019] [Indexed: 12/11/2022]
Abstract
The subdivision behavior of polymeric tablets produced with the well-known polymers Soluplus® (SOL), polyvinyl pyrrolidone co-vinyl acetate (PVPVA) and hydroxypropyl methylcellulose (HPMC) was evaluated in this study. The polymeric tablets were submitted to different post-treatments (aging, thermal and exposure to compressed gaseous carbon dioxide) and its mechanical, spectroscopic and microstructure properties were assessed. SOL tablets showed the best results for tablet subdivision, particularly, the mean mass variation (3.9%) was significantly lower than the other two polymeric tablets (7.2% and 9.1% for PVPVA and HPMC, respectively), and showed better results than common tablets produced from powder matrices (7-14%). SOL tablets were also more sensitive to the different post-treatments applied, which reduced the mass loss and friability from 1.5% and 0.8%, respectively, to values close to zero and without altering their porosity. The thermal treatment of PVPVA tablets, in turn, also led to similar subdivision results, with mass loss of 0.3% and friability of 0.02%. In contrast, the granules of HPMC presented compaction difficulties making its tablets unsuitable for the subdivision process, even after additional post-treatment. Polymeric matrices with uniform internal structure and appropriate mechanical strength are the key to a better adaptation for the tablet subdivision.
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Affiliation(s)
- Marcilio Cunha-Filho
- Laboratory of Food, Drugs and Cosmetics (LTMAC), University of Brasília (UnB), 70910-900 Brasília, DF, Brazil.
| | - Maíra T Teixeira
- Laboratory of Food, Drugs and Cosmetics (LTMAC), University of Brasília (UnB), 70910-900 Brasília, DF, Brazil
| | - Víctor Santos-Rosales
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, I+D Farma Group (GI-1645), Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Livia L Sa-Barreto
- Laboratory of Food, Drugs and Cosmetics (LTMAC), University of Brasília (UnB), 70910-900 Brasília, DF, Brazil
| | - Ricardo N Marreto
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | - Manuel Martin-Pastor
- Unidad de Resonancia Magnética Nuclear, RIAIDT, CACTUS, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, I+D Farma Group (GI-1645), Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Mariana Landin
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, I+D Farma Group (GI-1645), Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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Jara MO, Catalan-Figueroa J, Landin M, Morales JO. Finding key nanoprecipitation variables for achieving uniform polymeric nanoparticles using neurofuzzy logic technology. Drug Deliv Transl Res 2019; 8:1797-1806. [PMID: 29288356 DOI: 10.1007/s13346-017-0446-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanoprecipitation is a simple and fast method to produce polymeric nanoparticles (Np); however, most applications require filtration or another separation technique to isolate the nanosuspension from aggregates or polydisperse particle production. In order to avoid variability introduced by these additional steps, we report here a systematic study of the process to yield monomodal and uniform Np production with the nanoprecipitation method. To further identify key variables and their interactions, we used artificial neural networks (ANN) to investigate the multiple variables which influence the process. In this work, a polymethacrylate derivative was used for Np (NpERS) and a database with several formulations and conditions was developed for the ANN model. The resulting ANN model had a high predictability (> 70%) for NpERS characteristics measured (mean size, PDI, zeta potential, and number of particle populations). Moreover, the model identified production variables leading to polymer supersaturation, such as mixing time and turbulence, as key in achieving monomodal and uniform NpERS in one production step. Polymer concentration and type of solvent, modifiers of polymer diffusion and supersaturation, were also shown to control NpERS characteristics. The ANN study allowed the identification of key variables and their interactions and resulted in a predictive model to study the NpERS production by nanoprecipitation. In turn, we have achieved an optimized method to yield uniform NpERS which could pave way for polymeric nanoparticle production methods with potential in biological and drug delivery applications.
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Affiliation(s)
- Miguel O Jara
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santos Dumont 964, 4to piso, Of. 09, Independencia, 8380494, Santiago, Chile
| | - Johanna Catalan-Figueroa
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santos Dumont 964, 4to piso, Of. 09, Independencia, 8380494, Santiago, Chile
| | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago, 15782, Santiago de Compostela, Spain
| | - Javier O Morales
- Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, University of Chile, Santos Dumont 964, 4to piso, Of. 09, Independencia, 8380494, Santiago, Chile. .,Advanced Center for Chronic Diseases (ACCDiS), 8380494, Santiago, Chile. .,Pharmaceutical Biomaterial Research Group, Department of Health Sciences, Luleå University of Technology, 97187, Luleå, Sweden.
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Alonso-Hearn M, Magombedze G, Abendaño N, Landin M, Juste RA. Deciphering the virulence of Mycobacterium avium subsp. paratuberculosis isolates in animal macrophages using mathematical models. J Theor Biol 2019; 468:82-91. [PMID: 30794839 DOI: 10.1016/j.jtbi.2019.01.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 12/03/2018] [Accepted: 01/21/2019] [Indexed: 01/21/2023]
Abstract
Understanding why pathogenic Mycobacterium avium subsp. paratuberculosis (Map) isolates cause disparate disease outcomes with differing magnitudes of severity is important in designing and implementing new control strategies. We applied a suite of mathematical models: i) general linear, ii) and neurofuzzy logic, to explain how the host of origin of several Map isolates, Map genotype, host, macrophage-based in vitro model and time post-infection contributed to the infection. A logistic growth ordinary differential equation (ODE) model was applied to estimate within macrophage growth rates for the different Map isolates. The models revealed different susceptibilities of bovine and ovine macrophages to Map infection and confirmed distinct virulence profiles for the isolates, judged by their ability to grow within macrophages. Ovine macrophages were able to internalize Map isolates more efficiently than bovine macrophages. While bovine macrophages were able to internalize Map isolates from cattle with more efficiency, ovine macrophages were more efficient in internalizing ovine isolates. Overall, Map isolates from goat and sheep grew minimally within macrophages or did not grow but were able to persist by maintaining its initial population. In contrast, the ability of the bovine isolates and the non-domesticated animal isolates to grow to higher CFU numbers within macrophages suggests that these isolates are more virulent than the sheep and goat isolates, or that these isolates are better adapted to infect domestic ruminants. Overall, our study confirms the different virulence levels for the Map isolates and susceptibility profiles of host macrophages, which is crucial in increasing our understanding of Map infection.
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Affiliation(s)
- Marta Alonso-Hearn
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Derio, 48160 Bizkaia, Spain.
| | - Gesham Magombedze
- Center for Infectious Diseases Research and Experimental Therapeutics, Baylor University Medical Center, 75204 Dallas, TX, USA
| | - Naiara Abendaño
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Derio, 48160 Bizkaia, Spain
| | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ramon A Juste
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Derio, 48160 Bizkaia, Spain
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Rouco H, Diaz-Rodriguez P, Rama-Molinos S, Remuñán-López C, Landin M. Delimiting the knowledge space and the design space of nanostructured lipid carriers through Artificial Intelligence tools. Int J Pharm 2018; 553:522-530. [PMID: 30442594 DOI: 10.1016/j.ijpharm.2018.10.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/24/2018] [Accepted: 10/25/2018] [Indexed: 12/24/2022]
Abstract
Nanostructured lipid carriers (NLC) are biocompatible and biodegradable nanoscale systems with extensive application for controlled drug release. However, the development of optimal nanosystems along with a reproducible manufacturing process is still challenging. In this study, a two-step experimental design was performed and databases were successfully modelled using Artificial Intelligence techniques as an innovative method to get optimal, reproducible and stable NLC. The initial approach, including a wide range of values for the different variables, was followed by a second set of experiments with variable values in a narrower range, more suited to the characteristics of the system. NLC loaded with rifabutin, a hydrophobic drug model, were produced by hot homogenization and fully characterized in terms of particle size, size distribution, zeta potential, encapsulation efficiency and drug loading. The use of Artificial Intelligence tools has allowed to elucidate the key parameters that modulate each formulation property. Stable nanoparticles with low sizes and polydispersions, negative zeta potentials and high drug loadings were obtained when the proportion of lipid components, drug, surfactants and stirring speed were optimized by FormRules® and INForm®. The successful application of Artificial Intelligence tools on NLC formulation optimization constitutes a pioneer approach in the field of lipid nanoparticles.
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Affiliation(s)
- Helena Rouco
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782-Santiago de Compostela, Spain
| | - Patricia Diaz-Rodriguez
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782-Santiago de Compostela, Spain
| | - Santiago Rama-Molinos
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782-Santiago de Compostela, Spain
| | - Carmen Remuñán-López
- NanoBiofar Group (GI-1643), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782-Santiago de Compostela, Spain
| | - Mariana Landin
- R+D Pharma Group (GI-1645), Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela-Campus Vida, 15782-Santiago de Compostela, Spain.
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26
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Diaz-Rodriguez P, Landin M. Biomorphic Ceramics for Drug Delivery in Bone Tissue Regeneration. Curr Pharm Des 2018; 23:3507-3514. [PMID: 28521695 DOI: 10.2174/1381612823666170516145309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/01/2017] [Accepted: 05/08/2017] [Indexed: 11/22/2022]
Abstract
Incorporating therapeutic molecules into biomorphic ceramics for in situ drug release can be used to generate novel systems for tissue regeneration. These systems couple the complex hierarchical porous structures of biomorphic ceramics with the therapeutic activity of drugs. There are a large number of natural precursors available to be used as templates to obtain biomorphic silicon carbide ceramics. Additionally, different drug loading techniques can be used for these systems. The high versatility in structures and drugs allows the selection of the right structure-drug fit in each case according to the tissue needs. This paper reviews the utility of biomorphic ceramics for tissue engineering as well as their use for local drug release.
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Affiliation(s)
- Patricia Diaz-Rodriguez
- Department of Biomedical Engineering, Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY. United States
| | - Mariana Landin
- Department of Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela. Spain
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Diaz-Rodriguez P, Garcia-Triñanes P, Echezarreta López MM, Santoveña A, Landin M. Mineralized alginate hydrogels using marine carbonates for bone tissue engineering applications. Carbohydr Polym 2018; 195:235-242. [PMID: 29804973 DOI: 10.1016/j.carbpol.2018.04.101] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/24/2018] [Accepted: 04/26/2018] [Indexed: 12/15/2022]
Abstract
The search for an ideal bone tissue replacement has led to the development of new composite materials designed to simulate the complex inorganic/organic structure of bone. The present work is focused on the development of mineralized calcium alginate hydrogels by the addition of marine derived calcium carbonate biomineral particles. Following a novel approach, we were able to obtain calcium carbonate particles of high purity and complex micro and nanostructure dependent on the source material. Three different types of alginates were selected to develop inorganic/organic scaffolds in order to correlate alginate composition with scaffold properties and cell behavior. The incorporation of calcium carbonates into alginate networks was able to promote extracellular matrix mineralization and osteoblastic differentiation of mesenchymal stem cells when added at 7 mg/ml. We demonstrated that the selection of the alginate type and calcium carbonate origin is crucial to obtain adequate systems for bone tissue engineering as they modulate the mechanical properties and cell differentiation.
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Affiliation(s)
- P Diaz-Rodriguez
- Dpto. Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia, University of Santiago de Compostela, Santiago de Compostela, Spain; Instituto de Bioingeniería en Red para el Envejecimiento Saludable-IBEROS Network, Spain.
| | | | - M M Echezarreta López
- Dpto. Ingeniería Química y Tecnología Farmacéutica, Sección de Farmacia, University of La Laguna, La Laguna, Spain
| | - A Santoveña
- Dpto. Ingeniería Química y Tecnología Farmacéutica, Sección de Farmacia, University of La Laguna, La Laguna, Spain
| | - M Landin
- Dpto. Farmacología, Farmacia y Tecnología Farmacéutica, R+D Pharma Group (GI-1645), Facultad de Farmacia, University of Santiago de Compostela, Santiago de Compostela, Spain
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Alonso-Hearn M, Abendaño N, Ruvira MA, Aznar R, Landin M, Juste RA. Mycobacterium avium subsp. paratuberculosis (Map) Fatty Acids Profile Is Strain-Dependent and Changes Upon Host Macrophages Infection. Front Cell Infect Microbiol 2017; 7:89. [PMID: 28377904 PMCID: PMC5359295 DOI: 10.3389/fcimb.2017.00089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 03/06/2017] [Indexed: 12/11/2022] Open
Abstract
Johne's disease is a chronic granulomatous enteritis of ruminants caused by the intracellular bacterium Mycobacterium avium subsp. paratuberculosis (Map). We previously demonstrated that Map isolates from sheep persisted within host macrophages in lower CFUs than cattle isolates after 7 days of infection. In the current study, we hypothesize that these phenotypic differences between Map isolates may be driven be the fatty acids (FAs) present on the phosphadidyl-1-myo-inositol mannosides of the Map cell wall that mediate recognition by the mannose receptors of host macrophages. FAs modifications may influence Map's envelope fluidity ultimately affecting pathogenicity. To test this hypothesis, we investigated the responses of two Map isolates from cattle (K10 isolate) and sheep (2349/06-1) to the bovine and ovine macrophage environment by measuring the FAs content of extracellular and intracellular bacteria. For this purpose, macrophages cell lines of bovine (BOMAC) and ovine (MOCL-4) origin were infected with the two isolates of Map for 4 days at 37°C. The relative FAs composition of the two isolates recovered from infected BOMAC and MOCL-4 cells was determined by gas chromatography and compared with that of extracellular bacteria and that of bacteria grown in Middlebrook 7H9 medium. Using this approach, we demonstrated that the FAs composition of extracellular and 7H9-grown bacteria was highly conserved within each Map isolate, and statistically different from that of intracellular bacteria. Analysis of FAs composition from extracellular bacteria enabled the distinction of the two Map strains based on the presence of the tuberculostearic acid (18:0 10Me) exclusively in the K10 strain of Map. In addition, significant differences in the content of Palmitic acid and cis-7 Palmitoleic acid between both isolates harvested from the extracellular environment were observed. Once the infection established itself in BOMAC and MOCL-4 cells, the FAs profiles of both Map isolates appeared conserved. Our results suggest that the FAs composition of Map might influence its recognition by macrophages and influence the survival of the bacillus within host macrophages.
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Affiliation(s)
- Marta Alonso-Hearn
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Technological Park of Bizkaia Derio, Spain
| | - Naiara Abendaño
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Technological Park of Bizkaia Derio, Spain
| | - Maria A Ruvira
- Spanish Type Culture Collection (CECT), University of Valencia, Parc Científic Universitat de València Paterna, Spain
| | - Rosa Aznar
- Spanish Type Culture Collection (CECT), University of Valencia, Parc Científic Universitat de València Paterna, Spain
| | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago Santiago de Compostela, Spain
| | - Ramon A Juste
- Department of Animal Health, NEIKER-Basque Institute for Agricultural Research and Development, Technological Park of BizkaiaDerio, Spain; Servicio Regional de Investigación y Desarrollo Agroalimentario, Agri-Food Research and Development Regional ServiceVillaviciosa, Spain
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Ayuso M, Ramil-Rego P, Landin M, Gallego PP, Barreal ME. Computer-Assisted Recovery of Threatened Plants: Keys for Breaking Seed Dormancy of Eryngium viviparum. Front Plant Sci 2017; 8:2092. [PMID: 29312370 PMCID: PMC5732921 DOI: 10.3389/fpls.2017.02092] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/24/2017] [Indexed: 05/08/2023]
Abstract
Many endangered plants such as Eryngium viviparum (Apiaceae) present a poor germination rate. This fact could be due to intrinsic and extrinsic seed variability influencing germination and dormancy of seeds. The objective of this study is to better understand the physiological mechanism of seed latency and, through artificial intelligence models, to determine the factors that stimulate germination rates of E. viviparum seeds. This description could be essential to prevent the disappearance of endangered plants. Germination in vitro was carried out under different dormancy breaking and incubation procedures. Percentages of germination, viability and E:S ratio were calculated and seeds were dissected at the end of each assay to describe embryo development. The database obtained was modeled using neurofuzzy logic technology. We have found that the most of Eryngium seeds (62.6%) were non-viable seeds (fully empty or without embryos). Excluding those, we have established the germination conditions to break seed dormancy that allow obtaining a real germination rate of 100%. Advantageously, the best conditions pointed out by neurofuzzy logic model for embryo growth were the combination of 1 mg L-1 GA3 (Gibberellic Acid) and high incubation temperature and for germination the combination of long incubation and short warm stratification periods. Our results suggest that E. viviparum seeds present morphophysiological dormancy, which reduce the rate of germination. The knowledge provided by the neurofuzzy logic model makes possible not just break the physiological component of dormancy, but stimulate the embryo development increasing the rate of germination. Undoubtedly, the strategy developed in this work can be useful to recover other endangered plants by improving their germination rate and uniformity favoring their ex vitro conservation.
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Affiliation(s)
- Manuel Ayuso
- Applied Plant and Soil Biology, Faculty of Biology, University of Vigo, Vigo, Spain
| | - Pablo Ramil-Rego
- GI-1934 TB-Biodiversity, IBADER, Universidad de Santiago, Lugo, Spain
| | - Mariana Landin
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Pedro P. Gallego
- Applied Plant and Soil Biology, Faculty of Biology, University of Vigo, Vigo, Spain
- *Correspondence: Pedro P. Gallego
| | - M. Esther Barreal
- Applied Plant and Soil Biology, Faculty of Biology, University of Vigo, Vigo, Spain
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Díaz-Rodríguez P, Rey-Rico A, Madry H, Landin M, Cucchiarini M. Effective genetic modification and differentiation of hMSCs upon controlled release of rAAV vectors using alginate/poloxamer composite systems. Int J Pharm 2015; 496:614-26. [PMID: 26556623 DOI: 10.1016/j.ijpharm.2015.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/03/2015] [Accepted: 11/04/2015] [Indexed: 02/02/2023]
Abstract
Viral vectors are common tools in gene therapy to deliver foreign therapeutic sequences in a specific target population via their natural cellular entry mechanisms. Incorporating such vectors in implantable systems may provide strong alternatives to conventional gene transfer procedures. The goal of the present study was to generate different hydrogel structures based on alginate (AlgPH155) and poloxamer PF127 as new systems to encapsulate and release recombinant adeno-associated viral (rAAV) vectors. Inclusion of rAAV in such polymeric capsules revealed an influence of the hydrogel composition and crosslinking temperature upon the vector release profiles, with alginate (AlgPH155) structures showing the fastest release profiles early on while over time vector release was more effective from AlgPH155+PF127 [H] capsules crosslinked at a high temperature (50°C). Systems prepared at room temperature (AlgPH155+PF127 [C]) allowed instead to achieve a more controlled release profile. When tested for their ability to target human mesenchymal stem cells, the different systems led to high transduction efficiencies over time and to gene expression levels in the range of those achieved upon direct vector application, especially when using AlgPH155+PF127 [H]. No detrimental effects were reported on either cell viability or on the potential for chondrogenic differentiation. Inclusion of PF127 in the capsules was also capable of delaying undesirable hypertrophic cell differentiation. These findings are of promising value for the further development of viral vector controlled release strategies.
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Affiliation(s)
- P Díaz-Rodríguez
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany; Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, Spain
| | - A Rey-Rico
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany
| | - H Madry
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany; Department of Orthopaedic Surgery, Saarland University Medical Center, Homburg/Saar, Germany
| | - M Landin
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, Spain
| | - M Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, Homburg/Saar, Germany.
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Díaz-Rodríguez P, Gómez-Amoza JL, Landin M. The synergistic effect of VEGF and biomorphic silicon carbides topography on
in vivo
angiogenesis and human bone marrow derived mesenchymal stem cell differentiation. Biomed Mater 2015; 10:045017. [DOI: 10.1088/1748-6041/10/4/045017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Díaz-Rodríguez P, Landin M. Controlled release of indomethacin from alginate–poloxamer–silicon carbide composites decrease in-vitro inflammation. Int J Pharm 2015; 480:92-100. [DOI: 10.1016/j.ijpharm.2015.01.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 01/13/2015] [Indexed: 12/28/2022]
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Echezarreta-López MM, De Miguel T, Quintero F, Pou J, Landin M. Antibacterial properties of laser spinning glass nanofibers. Int J Pharm 2014; 477:113-21. [PMID: 25447823 DOI: 10.1016/j.ijpharm.2014.09.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 09/23/2014] [Accepted: 09/26/2014] [Indexed: 11/18/2022]
Abstract
A laser-spinning technique has been used to produce amorphous, dense and flexible glass nanofibers of two different compositions with potential utility as reinforcement materials in composites, fillers in bone defects or scaffolds (3D structures) for tissue engineering. Morphological and microstructural analyses have been carried out using SEM-EDX, ATR-FTIR and TEM. Bioactivity studies allow the nanofibers with high proportion in SiO2 (S18/12) to be classified as a bioinert glass and the nanofibers with high proportion of calcium (ICIE16) as a bioactive glass. The cell viability tests (MTT) show high biocompatibility of the laser spinning glass nanofibers. Results from the antibacterial activity study carried out using dynamic conditions revealed that the bioactive glass nanofibers show a dose-dependent bactericidal effect on Sthaphylococcus aureus (S. aureus) while the bioinert glass nanofibers show a bacteriostatic effect also dose-dependent. The antibacterial activity has been related to the release of alkaline ions, the increase of pH of the medium and also the formation of needle-like aggregates of calcium phosphate at the surface of the bioactive glass nanofibers which act as a physical mechanism against bacteria. The antibacterial properties give an additional value to the laser-spinning glass nanofibers for different biomedical applications, such as treating or preventing surgery-associated infections.
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Affiliation(s)
- M M Echezarreta-López
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Campus Vida, Universidad Santiago de Compostela, Santiago de Compostela 15782, Spain.
| | - T De Miguel
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Campus Vida, Universidad Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - F Quintero
- Departamento de Física Aplicada, EE Industrial, Universidad de Vigo, 36310, Spain
| | - J Pou
- Departamento de Física Aplicada, EE Industrial, Universidad de Vigo, 36310, Spain
| | - M Landin
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Campus Vida, Universidad Santiago de Compostela, Santiago de Compostela 15782, Spain
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López-Cebral R, Romero-Caamaño V, Seijo B, Alvarez-Lorenzo C, Martín-Pastor M, Concheiro Á, Landin M, Sanchez A. Spermidine Cross-Linked Hydrogels as a Controlled Release Biomimetic Approach for Cloxacillin. Mol Pharm 2014; 11:2358-71. [DOI: 10.1021/mp500067z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Rita López-Cebral
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Vanessa Romero-Caamaño
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Begoña Seijo
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
- Molecular
Image Group, University of Santiago de Compostela Clinical Hospital, Travesía
da Choupana, 15706 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Manuel Martín-Pastor
- Nuclear
Magnetic Resonance Unit, University of Santiago de Compostela, Campus
Vida, 15706 Santiago
de Compostela, Spain
| | - Ángel Concheiro
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Mariana Landin
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Alejandro Sanchez
- Department
of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
- Molecular
Image Group, University of Santiago de Compostela Clinical Hospital, Travesía
da Choupana, 15706 Santiago de Compostela, Spain
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Díaz-Rodríguez P, González P, Serra J, Landin M. Key parameters in blood-surface interactions of 3D bioinspired ceramic materials. Mater Sci Eng C Mater Biol Appl 2014; 41:232-9. [PMID: 24907756 DOI: 10.1016/j.msec.2014.04.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 03/26/2014] [Accepted: 04/22/2014] [Indexed: 11/18/2022]
Abstract
Direct contact of materials with blood components may trigger numerous processes which ultimately lead to hemolysis, clot formation and recruitment of inflammatory cells. In this study, the blood-surface interactions for two inert bioinspired ceramic scaffolds obtained from natural resources; biomorphic carbon and silicon carbides (bioSiC) from different origins have been studied. The response of the blood in contact with carbon is well known, however little has been identified on the influence of their 3D porous structure. Moreover, to our knowledge, there is no reference in the literature about the hemocompatibility of biomorphic silicon carbide as a porous scaffold. The experimental results showed the surface energy to be crucial to evaluate the hemocompatibility of a material however the surface topography and material porosity are also parameters to be considered. Surface roughness modifies clot formation whereas for protein adsorption total sample porosity seems to be the key parameter to be considered for hydrophilic materials (biomorphic silicon carbides), while the size of the pores determines the hemolytic response.
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Affiliation(s)
- P Díaz-Rodríguez
- Dpto. Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, Santiago de Compostela, 15782 Spain
| | - P González
- Dpto. Física Aplicada, E.E. Industriais, Universidade de Vigo, Vigo, Spain
| | - J Serra
- Dpto. Física Aplicada, E.E. Industriais, Universidade de Vigo, Vigo, Spain
| | - M Landin
- Dpto. Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, Santiago de Compostela, 15782 Spain.
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Echezarreta-López M, Landin M. Using machine learning for improving knowledge on antibacterial effect of bioactive glass. Int J Pharm 2013; 453:641-7. [DOI: 10.1016/j.ijpharm.2013.06.036] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 06/13/2013] [Accepted: 06/15/2013] [Indexed: 01/22/2023]
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Petit A, Müller B, Meijboom R, Bruin P, van de Manakker F, Versluijs-Helder M, de Leede LGJ, Doornbos A, Landin M, Hennink WE, Vermonden T. Effect of Polymer Composition on Rheological and Degradation Properties of Temperature-Responsive Gelling Systems Composed of Acyl-Capped PCLA-PEG-PCLA. Biomacromolecules 2013; 14:3172-82. [DOI: 10.1021/bm400804w] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Audrey Petit
- InGell Laboratories BV, Groningen, The Netherlands
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Benno Müller
- InGell Laboratories BV, Groningen, The Netherlands
| | | | - Peter Bruin
- InGell Laboratories BV, Groningen, The Netherlands
| | | | - Marjan Versluijs-Helder
- Department of Inorganic Chemistry
and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, The Netherlands
| | | | - Albert Doornbos
- Innocore Technology BV, Zernike Park 6−8, 9747 AN Groningen, The
Netherlands
| | - Mariana Landin
- Departamento
de Farmacia y Tecnología
Farmacéutica, Facultad de Farmacia, Universidad de Santiago, Campus Vida 15782 Santiago de Compostela,
Spain
| | - Wim E. Hennink
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Tina Vermonden
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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Cunha-Filho MSS, Martínez-Pacheco R, Landin M. Effect of storage conditions on the stability of β-lapachone in solid state and in solution. J Pharm Pharmacol 2013; 65:798-806. [DOI: 10.1111/jphp.12040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 01/06/2013] [Indexed: 12/11/2022]
Abstract
Abstract
Objectives
In this work, the effects of several technological factors on the stability of β-lapachone (βLAP) in solution and in the solid state were investigated.
Methods
The effects of relative humidity and light on the stability of βLAP in the solid state were studied. Samples were characterized by liquid chromatography, thermal analysis, X-ray powder diffraction and optical microscopy. In solution, the effects of light conditions and additives (cyclodextrins) were also evaluated. Molecular modelling was used to support the degradation mechanism involved. Additionally, the pH stability profile of βLAP was established.
Key findings
The synergism of relative humidity and light promoted degradation of βLAP in the solid state, with important consequences for the physical and chemical characteristics of the drug after storage. Random methyl-β-cyclodextrin was able to protect the drug against the hydrolytic process in darkness. However, it accelerated the drug decomposition by photolysis in light conditions. According to the pH stability profile, βLAP undergoes an alkaline hydrolysis, its maximum stability pH being over the range 2–4.
Conclusions
These studies provide useful information regarding the optimal storage conditions and formulations of βLAP.
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Affiliation(s)
- Marcílio S S Cunha-Filho
- Faculdade de Ciências da Saúde, Campus Universitário Darcy Ribeiro, Universidade de Brasília (UnB), Brasília, Brazil
| | - Ramón Martínez-Pacheco
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Campus Vida, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - Mariana Landin
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Campus Vida, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
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Cunha-Filho MSS, Alvarez-Lorenzo C, Martínez-Pacheco R, Landin M. Temperature-sensitive gels for intratumoral delivery of β-lapachone: effect of cyclodextrins and ethanol. ScientificWorldJournal 2012; 2012:126723. [PMID: 22629119 PMCID: PMC3349311 DOI: 10.1100/2012/126723] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Accepted: 01/15/2012] [Indexed: 12/16/2022] Open
Abstract
This work evaluated the potential of Pluronics (varieties F127 and P123) in combination with solubilizing agents to be used as syringeable in situ gelling depots of intratumoral β-lapachone (βLAP). Pluronic dispersions prepared at various concentrations in the absence and the presence of ethanol and randomly methylated β-cyclodextrin (RMβCD) were characterized regarding their rheological properties, drug solubilization capacity, and in vitro release. Pluronic F127 (18-23%) formulations combined high ability to solubilize βLAP (enhancement solubility factor up to 50), adequate gel temperature range (over 25 °C), and gel strength at 37 °C enough to guarantee the permanence of the formulation in the administration site for a period of time. βLAP release rate was finely tuned by the concentration of the polymer and the addition of RMβCD (diffusion coefficient ranging between 9 and 69 μg · cm(-2)). The ethanol increases βLAP release rate but simultaneously led to weak gels. This paper shows that βLAP formulations involving temperature-reversible Pluronic gels may be suitable for intratumoral drug delivery purposes.
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Affiliation(s)
- Marcilio S S Cunha-Filho
- Faculdade de Ciências da Saúde, Universidade de Brasília, Campus Universitário Darcy Ribeiro, 70910-900 Brasília-DF, Brazil
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Kristoffersen AK, Enersen M, Kverndokk E, Sunde PT, Landin M, Solheim T, Olsen I, Grinde B. Human papillomavirus subtypes in oral lesions compared to healthy oral mucosa. J Clin Virol 2012; 53:364-6. [PMID: 22261124 DOI: 10.1016/j.jcv.2011.12.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/21/2011] [Accepted: 12/22/2011] [Indexed: 11/16/2022]
Abstract
BACKGROUND Human papillomaviruses (HPV) are involved in the etiology of cervix cancer, but it is still unclear whether they play a role in related oral lesions. OBJECTIVES The presence of HPV in oral leukoplakia biopsies (n=50) and oral squamous carcinoma biopsies (n=50) was compared to normal oral mucosa swabs (n=50) for the purpose of indicating a possible etiological role for the virus. STUDY DESIGN DNA was extracted from tissue biopsies and from mucosa swabs of control samples. Nested PCR was performed with primers targeting conserved sequences within the capsid gene L1. PCR products were sequenced to identify the HPV genotype. RESULT The results reveal a profile of low-risk HPV genotypes in oral leukoplakia similar to that in healthy controls, while HPV was less frequently observed in oral squamous carcinoma. CONCLUSIONS HPV does not seem to represent an important causal factor for the development of oral leukoplakia or oral squamous carcinoma.
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Cunha-Filho MS, Martínez-Pacheco R, Landin M. Fast dissolving β-lapachone particles and tablets: an approach using surface adsorption technique. Drug Dev Ind Pharm 2011; 38:866-71. [DOI: 10.3109/03639045.2011.630396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Díaz-Rodríguez P, Landin M, Rey-Rico A, Couceiro J, Coenye T, González P, Serra J, López-Álvarez M, León B. Bio-inspired porous SiC ceramics loaded with vancomycin for preventing MRSA infections. J Mater Sci Mater Med 2011; 22:339-347. [PMID: 21132518 DOI: 10.1007/s10856-010-4196-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Accepted: 11/24/2010] [Indexed: 05/30/2023]
Abstract
Implant-related infections are a serious complication in orthopaedic and dental surgery resulting in prolonged hospitalization, high medical costs and patient mortality. The development of porous implants loaded with antibiotics may enable a local delivery for preventing surface colonization and biofilm formation. A new generation of bio-derived porous ceramic material that mimics hierarchical structures from Nature was evaluated. Silicon carbide ceramics derived from Sapelli wood (bioSiC) were obtained by pyrolysis of Entandrophragma cylindricum wood followed by infiltration with molten silicon. This process renders disks that keep the bimodal pore size distribution (3 and 85 μm) of the original material and are highly cytocompatible (BALB/3T3 cell line). The ability of the bio-ceramic to load the antimicrobial agent vancomycin was evaluated by immersion of disks in drug solutions covering a wide range of concentrations. The disks released at pH 7.4 an important amount of drug during the first 2 h (up to 11 mg/g bioSiC) followed by a slower release, which is related to the presence of macro- and mesopores. Finally, the anti-biofilm effect against methicillin resistant Staphylococcus aureus was assessed and a considerable reduction (92%) of the bacterial film was observed. Results highlight the bioSiC potential as component of medicated medical devices.
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Affiliation(s)
- P Díaz-Rodríguez
- Dpto. Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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Alvarez-Manceñido F, Landin M, Lacik I, Martínez-Pacheco R. Konjac glucomannan and konjac glucomannan/xanthan gum mixtures as excipients for controlled drug delivery systems. Diffusion of small drugs. Int J Pharm 2008; 349:11-8. [PMID: 17804182 DOI: 10.1016/j.ijpharm.2007.07.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2006] [Revised: 07/06/2007] [Accepted: 07/13/2007] [Indexed: 11/28/2022]
Abstract
Konjac glucomannan (KGM), alone or in combination with xanthan gum (XG), was evaluated as main component of systems capable of controlling the diffusion of small molecules with a view of their use in drug delivery. To provide the study with enough general character, KGM batches were obtained from the three main areas of excipient harmonization (Europe, USA and Japan). The rheological evaluation at physiological temperature of KGM (0.5%, w/v) aqueous dispersions, with or without XG at different ratios, showed significant variability among the three KGMs owing to differences in the acetylation degree. The Japanese and European varieties of KGM synergically interact with XG giving rise to gel formation; the synergism being maximum at a 1:1 ratio. By contrast, the American KGM does not show such effect forming only viscous solutions. Drug diffusion coefficients of theophylline and diltiazem HCl, with different molecular size and net charge, were evaluated in systems containing KGM/XG ratio 1:1. KGM/XG systems were more efficient than the XG alone dispersion for controlling drug diffusion of small molecules because of the gel formation. These results point out the potential of mixtures of some KGM types with XG to develop delivery systems capable of maintaining physical integrity and drug release control for up to 8-h period.
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Affiliation(s)
- Felipe Alvarez-Manceñido
- Departamento Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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Alvarez-Manceñido F, Landin M, Martínez-Pacheco R. Konjac glucomannan/xanthan gum enzyme sensitive binary mixtures for colonic drug delivery. Eur J Pharm Biopharm 2008; 69:573-81. [PMID: 18294827 DOI: 10.1016/j.ejpb.2008.01.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2007] [Revised: 12/21/2007] [Accepted: 01/07/2008] [Indexed: 02/08/2023]
Abstract
The polysaccharide konjac glucomannan (KGM) is degraded in the colon but not the small intestine, which makes it potentially useful as an excipient for colonic drug delivery. With xanthan gum (XG) KGM forms thermoreversible gels with hitherto unexplored biodegradation properties. In this work, rheological measurements of KGM and KGM/XG systems incubated with and without Aspergillus niger beta-mannanase (used to mimic colonic enzymes) showed that KGM was degraded by the enzyme even when interacting with XG. Tablets with KGM/XG/sucrose matrices that varied in accordance with a simplex design and bore diltiazem as a typical highly soluble drug load were prepared by wet granulation, and in most cases were found to possess satisfactory mechanical strength and exhibit slow, nearly zero-order drug release. Drug release from these tablets remained zero-order, but was accelerated (presumably due to degradation of KGM), in the presence of A. niger beta-mannanase at concentrations equivalent to human colonic conditions. However, marked differences between Japanese and American varieties of KGM as regards degree of acetylation and particle size led to significant differences in swelling rate and drug release between formulations prepared with one and the other KGM: whereas a formulation with Japanese KGM released its entire drug load within 24h in the presence of beta-mannanase, only 60% release was achieved under the same conditions by the corresponding formulation with American KGM, suggesting that with this KGM it will be necessary to optimize technological variables such as compression pressure in order to achieve suitable porosity, swelling rate, and drug release. To sum up, the results of this study suggest that sustained release of water-soluble drugs in the colon from orally administered tablets may be achieved using simple, inexpensive formulations based on combinations of KGM and XG that take the variability of KGM characteristics into account.
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Affiliation(s)
- Felipe Alvarez-Manceñido
- Departamento de Farmacia y Tecnología Farmacéutica, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
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Cunha-Filho MSS, Dacunha-Marinho B, Torres-Labandeira JJ, Martínez-Pacheco R, Landin M. Characterization of beta-lapachone and methylated beta-cyclodextrin solid-state systems. AAPS PharmSciTech 2007; 8:E60. [PMID: 17915810 DOI: 10.1208/pt0803060] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The purpose of this research was to explore the utility of beta cyclodextrin (betaCD) and beta cyclodextrin derivatives (hydroxypropyl-beta-cyclodextrin [HPbetaCD], sulfobutylether-beta-CD [SBbetaCD], and a randomly methylated-beta-CD [RMbetaCD]) to form inclusion complexes with the antitumoral drug, beta-lapachone (betaLAP), in order to overcome the problem of its poor water solubility. RMbetaCD presented the highest efficiency for betaLAP solubilization and was selected to develop solid-state binary systems. Differential scanning calorimetry (DSC), X-ray powder diffractometry (XRPD), Fourier transform infrared (FTIR) and optical and scanning electron microscopy results suggest the formation of inclusion complexes by both freeze-drying and kneading techniques with a dramatic improvement in drug dissolution efficiency at 20-minute dissolution efficiency (DE(20-minute) 67.15% and 88.22%, respectively) against the drug (DE(20-minute) 27.11%) or the betaCD/drug physical mixture (DE(20-minute) 27.22%). However, the kneading method gives a highly crystalline material that together with the adequate drug dissolution profile make it the best procedure in obtaining inclusion complexes of RMbetaCD/betaLAP convenient for different applications of betaLAP.
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Affiliation(s)
- Marcilio S S Cunha-Filho
- Departamento de Farmacia y Tecnologia Farmaceutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782 A Coruna, Spain
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Alvarez-Manceñido F, Braeckmans K, De Smedt SC, Demeester J, Landin M, Martínez-Pacheco R. Characterization of diffusion of macromolecules in konjac glucomannan solutions and gels by fluorescence recovery after photobleaching technique. Int J Pharm 2006; 316:37-46. [PMID: 16574355 DOI: 10.1016/j.ijpharm.2006.02.029] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2005] [Revised: 02/14/2006] [Accepted: 02/15/2006] [Indexed: 10/24/2022]
Abstract
Konjac glucomannan (KGM) is a neutral polysaccharide with interesting properties as gelling agent and thickener. Its peculiar biodegradability, being not degradable in the small intestine but degradable by the anaerobic human intestinal bacteria, turn it into a promising candidate for colonic drug delivery systems. In this study aqueous systems (0.5%, w/v,) of KGM from three different origins and their mixtures with xanthan gum (XG) (1:1) were evaluated as regards their rheological properties and the diffusion coefficients and mobile fraction of macromolecules (dextrans of different molecular weight). Rheological data illustrate the synergism between KGM and XG at a stoichiometric relationship 1:1. Moreover, fluorescence recovery after photobleaching (FRAP) data indicate that diffusion of probes through the polysaccharide systems cannot be completely explained by the macroscopic properties of the medium but it is related to their molecular size and as a consequence to a sieving mechanism. The strong differences between KGM from different suppliers suggest the convenience of establishing specifications for this material in order to use it as pharmaceutical excipient.
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Affiliation(s)
- Felipe Alvarez-Manceñido
- Departamento Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
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Pan M, Suárez de Lezo J, Medina A, Romero M, Hernández E, Segura J, Melian F, Wangüemert F, Landin M, Benítez F, Amat M, Velasco F, Torres A. In-laboratory removal of femoral sheath following protamine administration in patients having intracoronary stent implantation. Am J Cardiol 1997; 80:1336-8. [PMID: 9388109 DOI: 10.1016/s0002-9149(97)00676-0] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Two hundred twenty-eight patients with successful coronary stent implantation were randomized either to protamine administration and femoral sheath removal (group I, n = 117) or no heparin neutralization and delayed sheath removal (group II, n = 111). The hospital stay after treatment was shorter in patients receiving protamine; therefore, protamine use for neutralizing circulating heparin may be safely administered immediately after stent implantation.
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Affiliation(s)
- M Pan
- Hospital Reina Sofía, University of Córdoba, Spain
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Pan M, Medina A, Suárez de Lezo J, Romero M, Hernández E, Segura J, Melian F, Wangüemert F, Landin M, Benítez F, Amat M. Obliteration of femoral pseudoaneurysm complicating coronary intervention by direct puncture and permanent or removable coil insertion. Am J Cardiol 1997; 80:786-8. [PMID: 9315592 DOI: 10.1016/s0002-9149(97)00518-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report on percutaneous obliteration of femoral pseudoaneurysm complicating percutaneous coronary interventions in 6 patients. Our findings suggest that permanent or transient direct coil insertion may be an useful alternative in the treatment of pseudoaneurysm in patients who do not respond to mechanical compression.
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MESH Headings
- Aged
- Aneurysm, False/diagnostic imaging
- Aneurysm, False/etiology
- Aneurysm, False/therapy
- Angina, Unstable/complications
- Angina, Unstable/drug therapy
- Angioplasty, Balloon, Coronary/adverse effects
- Cardiac Catheterization/adverse effects
- Embolization, Therapeutic
- Femoral Artery/diagnostic imaging
- Fibrinolytic Agents/therapeutic use
- Heparin, Low-Molecular-Weight/therapeutic use
- Humans
- Middle Aged
- Punctures/adverse effects
- Punctures/methods
- Stents
- Ultrasonography, Doppler
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Affiliation(s)
- M Pan
- Hospital Reina Sofía, University of Córdoba, Spain
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