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Garcia-Tarazona YM, Morantes SJ, Gordillo JFI, Sepúlveda P, Ramos FA, Lafaurie GI. Candesartan exhibits low intrinsic permeation capacity and affects buccal tissue viability and integrity: An ex vivo study in porcine buccal mucosa. Eur J Pharm Sci 2023; 188:106495. [PMID: 37329923 DOI: 10.1016/j.ejps.2023.106495] [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: 08/25/2022] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 06/19/2023]
Abstract
Candesartan is a nonpeptide angiotensin II receptor blocker that selectively binds to angiotensin II receptor subtype 1. It is administered orally in its ester form (candesartan cilexetil). However, its poor aqueous solubility results in its low bioavailability; therefore, other routes of administration must be explored. The buccal mucosa has been extensively studied as an alternative route for drug delivery as it improves the bioavailability of drugs administered via the peroral route. Porcine buccal mucosa has been widely used as an ex vivo model to study the permeability of various diffusants; however, studies on candesartan are limited. This study aimed to evaluate the ex vivo permeation profile of candesartan and its effects on the viability and integrity of porcine buccal mucosa. Initially, we evaluated the viability, integrity, and barrier function of the buccal tissue before performing permeability tests using freshly excised tissues or tissues after 12 h of resection. Here, three indicators were used: caffeine, β-estradiol, and FD-20 penetration; mucosal metabolic activity, as determined using MTT reduction assay; and haematoxylin and eosin staining. Our results indicated that the porcine buccal mucosa preserved its viability, integrity, and barrier function before the permeation assay, allowing the passage of molecules with a molecular mass of less than 20 kDa, such as caffeine, but not β-estradiol and FD-20. Furthermore, we analyzed the intrinsic capacity of candesartan to diffuse through the fresh porcine buccal mucosa under two pH conditions. The concentration of candesartan in the receptor chamber of Franz diffusion cell was quantified using ultra-high liquid chromatography. In the permeation assay, candesartan exhibited a low intrinsic permeation capacity that impacted the buccal tissue viability and integrity, suggesting that using the buccal mucosa as an alternative route of administration requires developing a pharmaceutical formulation that reduces the adverse effects on mucosa and increasing the buccal permeability of candesartan.
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Affiliation(s)
- Yenny M Garcia-Tarazona
- Universidad El Bosque, Unidad de Investigación Básica Oral UIBO, Bogotá, Colombia; Universidad El Bosque, Facultad de Odontología, Maestría en Ciencias Odontológicas, Bogotá, Colombia
| | - Sandra Johanna Morantes
- Universidad El Bosque, Unidad de Investigación Básica Oral UIBO, Bogotá, Colombia; Facultad de Ciencias, Programa Química Farmacéutica, Grupo de Investigación en Química Aplicada INQA, Universidad El Bosque, Bogotá, Colombia.
| | | | - Paula Sepúlveda
- Facultad de Ciencias, Departamento de Farmacia, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Freddy A Ramos
- Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Gloria Inés Lafaurie
- Universidad El Bosque, Unidad de Investigación Básica Oral UIBO, Bogotá, Colombia
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Vargas-Oviedo D, Morantes SJ, Diaz-Báez D. Human Salivary α-Amylase and Starch Digestion: A Simple and Inexpensive At-Home Laboratory Experience in Times of the COVID-19 Pandemic. J Chem Educ 2021; 98:3975-3983. [PMID: 37556287 PMCID: PMC8577362 DOI: 10.1021/acs.jchemed.1c00046] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 10/12/2021] [Indexed: 08/11/2023]
Abstract
The first case of coronavirus disease 2019 in Colombia was detected on March 6, 2020. Subsequently, schools, colleges, and universities were closed on March 26, which forced a massive migration to virtual education and impacted laboratory-based teaching courses. The teaching of biochemistry requires an experimental component that virtual laboratories cannot emulate. To address this concern, the article describes an at-home biochemistry laboratory experience that explores the hydrolysis of starch by α-amylase as a function of enzyme concentration, reaction time, and pH. The general success of the experience was assessed through the quality of information submitted through laboratory reports and feedback from students. A total of 19 laboratory reports were reviewed, and 50 students were surveyed. The analysis indicated that approximately 90% of students expressed favorable opinions about the experience. They understood the objective of the practice, identified the function of each material, and explained the relationship between the obtained results and concepts of enzyme activity presented in theoretical classes. Finally, the study concluded that the at-home laboratory experience is inexpensive and easy to perform outside the traditional laboratory. Furthermore, it enables a genuine practical experience with observations, data collection, analysis, and discussion of results, which meets the expectations for pharmaceutical chemistry students at the Universidad El Bosque in Bogotá, Colombia.
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Affiliation(s)
- Diana Vargas-Oviedo
- Semillero de Investigación en
Aplicaciones de Productos Orgánicos Sintéticos-PRONASI,
Grupo de Investigación en
Química Aplicada-INQA, Programa Química
Farmacéutica, Departamento de Química, Facultad de
Ciencias, Universidad El Bosque. Av.
Carrera 9 #131 A-02, Bogotá D.C. 110121,
Colombia
| | - Sandra Johanna Morantes
- Semillero de Investigación en
Aplicaciones de Productos Orgánicos Sintéticos-PRONASI,
Grupo de Investigación en
Química Aplicada-INQA, Programa Química
Farmacéutica, Departamento de Química, Facultad de
Ciencias, Universidad El Bosque. Av.
Carrera 9 #131 A-02, Bogotá D.C. 110121,
Colombia
| | - David Diaz-Báez
- Unidad de Investigación
Básica Oral-UIBO, Facultad de Odontología,
Universidad El Bosque, Av. Carrera 9
#131 A-02, Bogotá D.C. 110121,
Colombia
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Ballesteros-Vivas D, Alvarez-Rivera G, León C, Morantes SJ, Ibánez E, Parada-Alfonso F, Cifuentes A, Valdés A. Foodomics evaluation of the anti-proliferative potential of Passiflora mollissima seeds. Food Res Int 2020; 130:108938. [DOI: 10.1016/j.foodres.2019.108938] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 02/06/2023]
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Ballesteros-Vivas D, Alvarez-Rivera G, García Ocampo AF, Morantes SJ, Sánchez Camargo ADP, Cifuentes A, Parada-Alfonso F, Ibánez E. Supercritical antisolvent fractionation as a tool for enhancing antiproliferative activity of mango seed kernel extracts against colon cancer cells. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104563] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ballesteros-Vivas D, Álvarez-Rivera G, Morantes SJ, Sánchez-Camargo ADP, Ibáñez E, Parada-Alfonso F, Cifuentes A. An integrated approach for the valorization of mango seed kernel: Efficient extraction solvent selection, phytochemical profiling and antiproliferative activity assessment. Food Res Int 2019; 126:108616. [PMID: 31732074 DOI: 10.1016/j.foodres.2019.108616] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [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: 05/24/2019] [Revised: 08/06/2019] [Accepted: 08/11/2019] [Indexed: 01/19/2023]
Abstract
A novel valorization strategy is proposed in this work for the sustainable utilization of a major mango processing waste (i.e. mango seed kernel, MSK), integrating green pressurized-liquid extraction (PLE), bioactive assays and comprehensive HRMS-based phytochemical characterization to obtain bioactive-rich fractions with high antioxidant capacity and antiproliferative activity against human colon cancer cells. Thus, a two steps PLE procedure was proposed to recover first the non-polar fraction (fatty acids and lipids) and second the polar fraction (polyphenols). Efficient selection of the most suitable solvent for the second PLE step (ethanol/ethyl acetate mixture) was based on the Hansen solubility parameters (HSP) approach. A comprehensive GC- and LC-Q-TOF-MS/MS profiling analysis allowed the complete characterization of the lipidic and phenolic fractions obtained under optimal condition (100% EtOH at 150 °C), demonstrating the abundance of oleic and stearic acids, as well as bioactive xanthones, phenolic acids, flavonoids, gallate derivatives and gallotannins. The obtained MSK-extract exhibited higher antiproliferative activity against human colon adenocarcinoma cell line HT-29 compared to traditional extraction procedures described in literature for MSK utilization (e.g. Soxhlet), demonstrating the great potential of the proposed valorization strategy as a valuable opportunity for mango processing industry to deliver a value-added product to the market with health promoting properties.
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Affiliation(s)
- Diego Ballesteros-Vivas
- High Pressure Laboratory, Department of Chemistry, Faculty of Science, Universidad Nacional de Colombia, Carrera 30 #45-03, Bogotá D.C. 111321, Colombia; Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Gerardo Álvarez-Rivera
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Sandra Johanna Morantes
- Unit of Basic Oral Investigation (UIBO), School of Dentistry, Universidad El Bosque, Av. Carrera 9 #131 A-02, Bogotá D.C. 110121, Colombia
| | - Andrea Del Pilar Sánchez-Camargo
- High Pressure Laboratory, Department of Chemistry, Faculty of Science, Universidad Nacional de Colombia, Carrera 30 #45-03, Bogotá D.C. 111321, Colombia
| | - Elena Ibáñez
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain
| | - Fabián Parada-Alfonso
- High Pressure Laboratory, Department of Chemistry, Faculty of Science, Universidad Nacional de Colombia, Carrera 30 #45-03, Bogotá D.C. 111321, Colombia
| | - Alejandro Cifuentes
- Laboratory of Foodomics, Institute of Food Science Research, CIAL, CSIC, Nicolás Cabrera 9, 28049 Madrid, Spain.
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León CJ, Gómez SM, Morantes SJ, Cordero CP, Aristizábal FA. [Sensitivity profile of a panel of cell lines designed for the evaluation of in vitro cytotoxicity]. Biomedica 2006; 26:161-8. [PMID: 16929914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
INTRODUCTION Preliminary in vitro cytoxicity evaluations are determined in human tumor cell lines as a bioassay for the screening of potentially anticancer natural products. OBJECTIVE To strengthen the available in vitro cytotoxicity evaluation models, the panel of cell lines was expanded, and the sensitivity profile of each cell line was evaluated for its response to selected antineoplasic drugs. MATERIALS AND METHODS HeLa, MKN-45 and U-937 cell lines were added to the panel, and the sensitivity was determined for each of seven cell lines: HEp-2, HT-29, MCF-7, SiHa, MKN-45, HeLa and U-937. The effects of the antineoplasic drugs Doxorubicin HCl, Taxol, Cisplatin, Cyclophosphamide and Carmustin were examined, using the methyl thiazol tetrazolium (MTT) reduction assay. RESULTS A differential sensitivity to the drugs Doxorubicin HCl, Taxol and Cisplatin was established among the cell lines by comparing the lethal concentration 50 (LC50) values. HEp-2 was the most sensitive cell line, whereas HeLa and U-937 were the most resistant. HEp-2 exhibited a biphasic response to Taxol treatment; this was related to the reported mechanism of action of this compound. CONCLUSION Cyclophosphamide and Carmustin did not show activity under test conditions.
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Affiliation(s)
- Claudia Jhoana León
- Grupo de Farmacogenética del Cáncer, Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, D.C., Colombia
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