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Mancinelli S, Turcato A, Kisslinger A, Bongiovanni A, Zazzu V, Lanati A, Liguori GL. Design of transfections: Implementation of design of experiments for cell transfection fine tuning. Biotechnol Bioeng 2021; 118:4488-4502. [PMID: 34406655 PMCID: PMC9291525 DOI: 10.1002/bit.27918] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/02/2021] [Accepted: 08/12/2021] [Indexed: 11/25/2022]
Abstract
Transfection is the process by which nucleic acids are introduced into eukaryotic cells. This is fundamental in basic research for studying gene function and modulation of gene expression as well as for many bioprocesses in the manufacturing of clinical‐grade recombinant biologics from cells. Transfection efficiency is a critical parameter to increase biologics' productivity; the right protocol has to be identified to ensure high transfection efficiency and therefore high product yield. Design of experiments (DoE) is a mathematical method that has become a key tool in bioprocess development. Based on the DoE method, we developed an operational flow that we called “Design of Transfections” (DoT) for specific transfection modeling and identification of the optimal transfection conditions. As a proof of principle, we applied the DoT workflow to optimize a cell transfection chemical protocol for neural progenitors, using polyethyleneimine (PEI). We simultaneously varied key influencing factors, namely concentration and type of PEI, DNA concentration, and cell density. The transfection efficiency was measured by fluorescence imaging followed by automatic counting of the green fluorescent transfected cells. Taking advantage of the DoT workflow, we developed a new simple, efficient, and economically advantageous PEI transfection protocol through which we were able to obtain a transfection efficiency of 34%.
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Affiliation(s)
- Sara Mancinelli
- Institute of Genetics and Biophysics (IGB), National Research Council (CNR), Naples, Italy
| | | | - Annamaria Kisslinger
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Naples, Italy
| | - Antonella Bongiovanni
- Institute for Research and Biomedical Innovation (IRIB), National Research Council (CNR), Palermo, Italy
| | - Valeria Zazzu
- Institute of Genetics and Biophysics (IGB), National Research Council (CNR), Naples, Italy
| | | | - Giovanna Lucia Liguori
- Institute of Genetics and Biophysics (IGB), National Research Council (CNR), Naples, Italy
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Agrawal MB, Patel MM. Design, development and in vivo evaluation of clozapine loaded adhesive diffusion controlled system for the treatment of schizophrenia. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Agrawal MB, Patel MM. Optimization and in vivo evaluation of quetiapine-loaded transdermal drug delivery system for the treatment of schizophrenia. Drug Dev Ind Pharm 2020; 46:1819-1831. [PMID: 32896163 DOI: 10.1080/03639045.2020.1821051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The prevailing studies were carried out to formulate and optimize the quetiapine transdermal matrix patch by the usage of Box-Behnken design for ameliorated bioavailability when contrasted with conventional drug delivery. The Box-Behnken design with three-level and three-factor was utilized to explore the intermingle impact of critical attributes on tensile strength, in vitro drug release, and flux. Optimized formulation was characterized for Fourier transform infrared, differential scanning calorimetry, in vivo pharmacokinetics, and skin irritation along with stability studies. The inference of the finalized batch (F14) depicted the flux of 51.81 ± 0.32 µg/h/cm2, TS of 6.46 ± 0.56 MPa, and the % drug release after 20 h of 82.98 ± 1.48% with no remarkable variation even after 6 months stability studies. Correlation between predicted and the observed values of the dependent variables was very closer. Optimized quetiapine transdermal patch did not exert any symptoms of skin irritation. The bioavailability of quetiapine was enhanced almost 4.59 times after topical delivery when contrasted with the conventional dosage form. The outputs of the research work divulged that the developed matrix patch of quetiapine for transdermal drug delivery can be a propitious opportunity that affords effective treatment of schizophrenia. Novelty statement The oral route is not suitable for the drugs having extensive first-pass metabolism which leads to reduced bioavailability. For the parenteral route, invasiveness causes the patient noncompliance while sterility contributes to the cost factor. Moreover, the treatment of schizophrenic patients is a challenging task for caregivers and doctors. Hence, the transdermal patch of quetiapine was developed to bypass the biotransformation of drugs and thereby to enhance the bioavailability as well as to provide sustained drug delivery which ultimately reduces the dosage frequency.
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Affiliation(s)
- Milan B Agrawal
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad, India
| | - Mayur M Patel
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad, India
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Pereira RR, Testi M, Rossi F, Silva Junior JOC, Ribeiro-Costa RM, Bettini R, Santi P, Padula C, Sonvico F. Ucuùba ( Virola surinamensis) Fat-Based Nanostructured Lipid Carriers for Nail Drug Delivery of Ketoconazole: Development and Optimization Using Box-Behnken Design. Pharmaceutics 2019; 11:pharmaceutics11060284. [PMID: 31212993 PMCID: PMC6630981 DOI: 10.3390/pharmaceutics11060284] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 12/17/2022] Open
Abstract
Ucuùba fat is fat obtained from a plant found in South America, mainly in Amazonian Brazil. Due to its biocompatibility and bioactivity, Ucuùba fat was used for the production of ketoconazole-loaded nanostructured lipid carriers (NLC) in view of an application for the treatment of onychomycosis and other persistent fungal infections. The development and optimization of Ucuùba fat-based NLC were performed using a Box-Behnken design of experiments. The independent variables were surfactant concentration (% w/v), liquid lipids concentration (% w/v), solid lipids concentration (% w/v), while the outputs of interest were particle size, polydispersity index (PDI) and drug encapsulation efficiency (EE). Ucuùba fat-based NLC were produced and the process was optimized by the development of a predictive mathematical model. Applying the model, two formulations with pre-determined particle size, i.e., 30 and 85 nm, were produced for further evaluation. The optimized formulations were characterized and showed particle size in agreement to the predicted value, i.e., 33.6 nm and 74.6 nm, respectively. The optimized formulations were also characterized using multiple techniques in order to investigate the solid state of drug and excipients (DSC and XRD), particle morphology (TEM), drug release and interactions between the formulation components (FTIR). Furthermore, particle size, surface charge and drug loading efficiency of the formulations were studied during a one-month stability study and did not show evidence of significant modification.
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Affiliation(s)
- Rayanne R Pereira
- Pharmaceutical Sciences Faculty, Federal University of Para, 66075-110 Belem, Brazil.
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
| | - Matteo Testi
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
| | - Francesca Rossi
- Institute of Materials for Electronics and Magnetism (IMEM), CNR-Italian National Research Council, Parco Area delle Scienze 37/A, 43124 Parma, Italy.
| | - Jose O C Silva Junior
- Pharmaceutical Sciences Faculty, Federal University of Para, 66075-110 Belem, Brazil.
| | | | - Ruggero Bettini
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
- Biopharmanet-TEC, University of Parma, 43124 Parma, Italy.
| | - Patrizia Santi
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
- Biopharmanet-TEC, University of Parma, 43124 Parma, Italy.
| | - Cristina Padula
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
| | - Fabio Sonvico
- Food and Drug Department, University of Parma, 43124 Parma, Italy.
- Biopharmanet-TEC, University of Parma, 43124 Parma, Italy.
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Application of experimental design for the development of soft-capsules through a prilling, inverse gelation process. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.12.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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