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Jaipakdee N, Jarukamjorn K, Putalun W, Limpongsa E. Permeation, stability and acute dermal irritation of miroestrol and deoxymiroestrol from Pueraria candollei var. mirifica crude extract loaded transdermal gels. Pharm Dev Technol 2021; 26:967-977. [PMID: 34382493 DOI: 10.1080/10837450.2021.1967982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In this study, permeation behaviors and chemical stability of miroestrol and deoxymiroestrol from Pueraria candollei var. mirifica (PM), Thai traditional medicine, crude extract containing transdermal gels were firstly evaluated. Three different PM extract containing gels were formulated, including hydroalcoholic and microemulsion gels using carbomer, and silicone gel using silicone elastomer. In vitro permeation through porcine ear skin demonstrated that the flux and 24 h cumulative permeation of miroestrol and deoxymiroestrol were in the order of hydroalcoholic > silicone > microemulsion gels. Hydroalcoholic gel provided the highest partition coefficient from gel onto skin, and thus the skin permeability coefficient. After 24 h permeation, no miroestrol and deoxymiroestrol remained deposited in the skin. Accelerated study using heating-cooling revealed insignificant difference between the remaining percentages of miroestrol and deoxymiroestrol in aqueous and non-aqueous based gels. Long-term stability study showed that miroestrol contents remained constant for 90 d and 30 d under 5 ± 3 °C and 30 ± 2 °C, 75 ± 5%RH, respectively; whereas the percentage of deoxymiroestrol decreased significantly after 30 d storage, irrespective of storage conditions. Acute dermal irritation test on New Zealand White rabbits showed that PM hydroalcoholic gels were non-irritant, with no signs of erythema or oedema.[Figure: see text].
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Affiliation(s)
- Napaphak Jaipakdee
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand.,Center for Research and Development of Herbal Health Products (CRD-HHP), Khon Kaen University, Khon Kaen, Thailand
| | - Kanokwan Jarukamjorn
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand.,Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand.,Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, Thailand
| | - Ekapol Limpongsa
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand.,College of Pharmacy, Rangsit University, Pathumthani, Thailand
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2
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Sakamoto S, Eto R, Nuntawong P, Yusakul G, Juengwatanatrakul T, Putalun W, Fujii S, Tanaka H, Morimoto S. Kwakhurin-magnetic particles conjugates enable fast enzyme immunoassay for the detection of kwakhurin in Pueraria candollei. PHYTOCHEMICAL ANALYSIS : PCA 2020; 31:930-936. [PMID: 32542923 DOI: 10.1002/pca.2964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/14/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Kwakhurin (Kwa) is one of the unique isoflavonoids produced in Pueraria candollei var. mirifica (P. candollei), which has long been used as folk medicine for rejuvenation in Thailand. Recently, the use of P. candollei-derived products has widely spread among Japanese women for cosmetic purposes. Correspondingly, there has been an increase in the number of reports regarding possible health hazards caused by estrogenic activity inherent to the plant; thus, the need for a detailed evaluation of the phytoestrogen content of P. candollei-derived products has gained a sense of urgency in recent years. OBJECTIVE This study aims to develop a rapid enzyme immunoassay that can be applied to the quantitative analysis of Kwa in P. candollei and its derived products. MATERIAL AND METHOD A rapid and sensitive immunoassay was developed with a combination of Kwa-specific monoclonal antibody (MAb 11F) and Kwa-magnetic particles (MPs) conjugates, which increased the surface area of the solid phase, resulting in a decrease in the immunoreaction time. RESULT This novel MPs-based enzyme immunoassay (MPs-EIA) was used to determine Kwa concentration in the range from 2.44 to 78.1 ng/mL with a limit of detection of 1.90 ng/mL. Validation analyses revealed that the proposed MPs-EIA protocol was sufficiently precise and accurate for effective quantitative analysis of Kwa in P. candollei and its derived products.
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Affiliation(s)
- Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryota Eto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | | | - Gorawit Yusakul
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
| | | | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Shunsuke Fujii
- Faculty of Health Management, Nagasaki International University, Sasebo, Japan
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
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Quantification of methylisomiroestrol, a phytoestrogen of Pueraria candollei, by enzyme-linked immunosorbent assay in comparison with high-performance liquid chromatography. J Pharm Biomed Anal 2020; 192:113674. [PMID: 33120305 DOI: 10.1016/j.jpba.2020.113674] [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] [Received: 06/24/2020] [Revised: 09/24/2020] [Accepted: 10/03/2020] [Indexed: 11/22/2022]
Abstract
Pueraria candollei is a phytoestrogen-rich herb used to treat estrogen deficiency disorders; however, quality control of P. candollei-related health products is required for consistency of clinical outcomes. Estrogenically active (+)-7-O-methylisomiroestrol could be a potential chemical marker that facilitates the prediction of the overall estrogenic activity of P. candollei. The analytical performance of ELISA using newly produced monoclonal antibodies against methylisomiroestrol was compared with HPLC analysis. The developed indirect competitive ELISA (icELISA) was highly sensitive to methylisomiroestrol for detection, with an LOQ of 2.9 ng/mL, whereas the LOQ was 1.15 μg/mL by HPLC. The results from method validation indicated acceptable precision (1.71-6.37 % and 0.13-2.40 %) and accuracy (99.23-102.54 % and 96.84-101.88 %) of the methylisomiroestrol analysis using icELISA and HPLC. These methods were effectively applied for the determination of the methylisomiroestrol content in P. candollei samples. Apart from the plant tubers, the stem was observed as a source of methylisomiroestrol. The developed ELISA was more effective than HPLC in detecting a small quantity of methylisomiroestrol in the plant samples [0.23 × 10-3% (w/w) to 0.628 × 10-3% (w/w) dry weight]. Therefore, the ELISA could be a useful tool for the standardization of P. candollei, which is the crucial step to improve the quality of plant-derived products.
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Pongkitwitoon B, Boonsnongcheep P, Kitisripanya T, Yusakul G, Sakamoto S, Tanaka H, Morimoto S, Putalun W. Preparation of a highly specific single chain variable fragment antibody targeting miroestrol and its application in quality control of Pueraria candollei by enzyme-linked immunosorbent assay. PHYTOCHEMICAL ANALYSIS : PCA 2019; 30:600-608. [PMID: 31025473 DOI: 10.1002/pca.2832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/11/2019] [Accepted: 03/12/2019] [Indexed: 06/09/2023]
Abstract
INTRODUCTION Miroestrol is the potent phytoestrogen isolated from White Kwao Krua (Pueraria candollei var. mirifica (Airy Shaw & Suvat.) Niyomdham, a Thai traditional medicinal plant. Nowadays, various health supplementary products featuring White Kwao Krua are available worldwide. A sensitive and rapid analytical method for quantification of miroestrol is necessary for quality control of these products. OBJECTIVES To prepare a single-chain variable fragment (scFv) antibody specific to miroestrol and develop a scFv-based enzyme-linked immunosorbent assay (ELISA) for quantitative analysis of miroestrol in plant materials and health supplementary products. METHODS A gene encoding anti-miroestrol scFv antibody was constructed and expressed in Escherichia coli SHuffle T7 strain. Anti-miroestrol scFv antibody was characterised and applied to ELISA. The developed scFv-based ELISA method was validated for its sensitivity, specificity, accuracy and precision. RESULTS Anti-miroestrol scFv antibody was highly specific to miroestrol. The scFv-based ELISA was applied to determine miroestrol in the range 0.06-7.81 μg/mL, with the limit of quantification of 0.06 μg/mL miroestrol. The accuracy of the assay was validated by its 95.08-103.99% recovery from the spiked miroestrol recovery experiment and in good correlation with the results from the monoclonal antibody-based ELISA. The relative standard deviation of the intra- and inter-assay were less than 6.0%. CONCLUSION The developed scFv-based ELISA was sensitive, specific, accurate, and precise for determination of miroestrol and useful for quality control of P. candollei plant raw materials and supplementary products.
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Affiliation(s)
- Benyakan Pongkitwitoon
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Panitch Boonsnongcheep
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University Khon Kaen University, Khon Kaen, Thailand
| | - Tharita Kitisripanya
- Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Bangkok, Thailand
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
| | - Seiichi Sakamoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Tanaka
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoshi Morimoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University Khon Kaen University, Khon Kaen, Thailand
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Development of a simple and rapid method for the detection of isomiroestrol in Pueraria candollei by an immunochromatographic strip test. J Nat Med 2019; 73:577-583. [PMID: 30976950 DOI: 10.1007/s11418-019-01307-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 04/01/2019] [Indexed: 10/27/2022]
Abstract
Pueraria candollei (P. candollei) is a traditional Thai herb widely used for estrogen replacement therapy because it contains many unique chromenes that possess potent estrogenic activity, one of which is known as isomiroestrol. Since isomiroestrol is a promising compound that is solely present in P. candollei, it can be used as an identifying marker for standardization of P. candollei. Here, we developed a lateral-flow immunochromatographic strip (ICS) test using a colloidal gold nanoparticle-conjugated anti-isomiroestrol monoclonal antibody (12C1-mAb) for the detection of isomiroestrol in plant samples and products of P. candollei. The advantages of the developed ICS over an enzyme-linked immunosorbent assay are its simplicity and rapidity, as the ICS test can be completed 15 min after dipping the strip into the analyte solution. The detectable concentration of isomiroestrol was 7.0 µg/mL. Considering the demand for the standardization of P. candollei due to concerns regarding its quality, our ICS test using isomiroestrol as an identifying marker would be effective and useful to assess the presence of isomiroestrol.
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Yusakul G, Togita R, Minami K, Chanpokapaiboon K, Juengwatanatrakul T, Putalun W, Tanaka H, Sakamoto S, Morimoto S. An indirect competitive enzyme-linked immunosorbent assay toward the standardization of Pueraria candollei based on its unique isoflavonoid, kwakhurin. Fitoterapia 2019; 133:23-28. [DOI: 10.1016/j.fitote.2018.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/03/2018] [Accepted: 12/16/2018] [Indexed: 01/12/2023]
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Yusakul G, Kitisripanya T, Juengwatanatrakul T, Sakamoto S, Tanaka H, Putalun W. Enzyme linked immunosorbent assay for total potent estrogenic miroestrol and deoxymiroestrol of Pueraria candollei, a Thai herb for menopause remedy. J Nat Med 2018; 72:641-650. [DOI: 10.1007/s11418-018-1194-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 02/19/2018] [Indexed: 11/30/2022]
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Kitisripanya T, Udomsin O, Komaikul J, Inyai C, Limsuwanchote S, Yusakul G, Putalun W. A pilot pharmacokinetic study of miroestrol and deoxymiroestrol on rabbit sera using polyclonal antibody-based icELISA analysis. Phytother Res 2017; 32:365-369. [PMID: 29168310 DOI: 10.1002/ptr.5991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 10/18/2017] [Accepted: 10/22/2017] [Indexed: 11/07/2022]
Abstract
Miroestrol (ME) and deoxymiroestrol (DME) are the most potent phytoestrogens and bioactive markers in Pueraria candollei var. mirifica tuberous roots. To understand their pharmacokinetic profiles, a pharmacokinetic study of ME and DME, at 0.43 and 0.21 mg per kg body weight, respectively, in three rabbits was performed after orally administering a single dose of P. candollei var. mirifica enriched fraction extract. Two established polyclonal antibody-based indirect competitive enzyme-linked immunosorbent assays were validated to determine ME and DME in rabbit sera. In rabbits, the area under the 0- to 48-hr concentration-time curve of ME and DME were 854.92 and 1,692.84 ng·h/ml, respectively. The maximum concentration of ME was measured 1 hr after administration as 69.62 ± 8.28 ng/ml, and the maximum concentration of DME was measured at 3 hr as 81.8 ± 5.43 ng/ml. These results provide an initial approach for designing and studying the relationship between the ME and DME levels and their therapeutic effects based on their pharmacokinetic profiles.
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Affiliation(s)
- Tharita Kitisripanya
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Orapin Udomsin
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Jukrapun Komaikul
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Chadathorn Inyai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supattra Limsuwanchote
- Department of Pharmacology, Faculty of Science, Prince of Songkla University, Hat-Yai, 90112, Thailand
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, 222 Thaiburi, Thasala, Nakhon Si Thammarat, 80160, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
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Kitisripanya T, Inyai C, Komaikul J, Krittanai S, Juengwatanatrakul T, Sakamoto S, Tanaka H, Morimoto S, Putalun W. A lateral flow colloidal gold-based immunoassay for rapid detection of miroestrol in samples of White Kwao Krua, a phytoestrogen-rich plant. J Nat Med 2017; 71:659-664. [DOI: 10.1007/s11418-017-1096-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 05/19/2017] [Indexed: 12/01/2022]
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Kitisripanya T, Jutathis K, Inyai C, Komaikul J, Udomsin O, Tanaka H, Putalun W. Development of an enzyme-linked immunosorbent assay for the detection of isomiroestrol, an identical marker, in White Kwao Krua using a monoclonal antibody. J Pharm Biomed Anal 2017; 137:229-234. [DOI: 10.1016/j.jpba.2017.01.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 01/06/2017] [Accepted: 01/20/2017] [Indexed: 10/20/2022]
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Kitisripanya T, Inyai C, Krittanai S, Likhitwitayawuid K, Sritularak B, Ploypradith P, Tanaka H, Morimoto S, Putalun W. A monoclonal antibody-based immunoassay for the determination of oxyresveratrol from Artocarpus lacucha Buch.-Ham. J Nat Med 2017; 71:523-530. [PMID: 28364228 DOI: 10.1007/s11418-017-1083-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/13/2017] [Indexed: 11/26/2022]
Abstract
Oxyresveratrol is a major active compound in the heartwood of Artocarpus lacucha. It plays an important role in anti-tyrosinase, antioxidant, anti-inflammatory, antiviral and neuroprotective properties. There are many A. lacucha commercial products available on the market for skin whitening and anti-aging effects. To evaluate the quality of raw material from the plant, a monoclonal antibody (MAb) against oxyresveratrol was generated in this study. The immunogen was prepared by the Mannich reaction for the conjugation of oxyresveratrol and cationized bovine serum albumin (cBSA). The conjugation of oxyresveratrol-cBSA at a ratio of 1:50 was used for the immunization. The novel MAb (E4) was specific to oxyresveratrol and resveratrol. An indirect competitive enzyme-linked immunosorbent assay (ELISA) using the MAb (E4) was developed for the determination of oxyresveratrol. The linear range for the measurement of oxyresveratrol was 63-500 ng/mL and the precision (% relative standard deviation) was found to be <10% with the percentages of recovery from 95.93-103.55%. According to the validation analysis, the established ELISA can be applied for the determination of oxyresvertrol in the heartwood of A. lacucha and samples of the traditional drug Puag-Haad. With reliability and high sensitivity, this assay can provide an alternative approach for the quantitative analysis of oxyresveratrol in A. lacucha samples.
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Affiliation(s)
- Tharita Kitisripanya
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Chadathorn Inyai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supaluk Krittanai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | | | - Boonchoo Sritularak
- Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Program in Chemical Biology, Chulabhorn Research Institute, Chulabhorn Graduate Institute, 54 Kampaeng Phet 6 Road, Bangkok, Thailand
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand.
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Huml L, Jurášek M, Mikšátková P, Zimmermann T, Tomanová P, Buděšínský M, Rottnerová Z, Šimková M, Harmatha J, Kmoníčková E, Lapčík O, Drašar PB. Immunoassay for determination of trilobolide. Steroids 2017; 117:105-111. [PMID: 27600788 DOI: 10.1016/j.steroids.2016.08.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/10/2016] [Accepted: 08/30/2016] [Indexed: 11/27/2022]
Abstract
Trilobolide (Tb) is a pharmacologically interesting sesquiterpene lactone isolated from Laser trilobum (L.) Borkh. Structural relation to a sarco/endoplasmic reticulum Ca2+-ATPase inhibitor thapsigargin bring promising prospects for Tb to be used in the development of new anti-cancer drugs. As long as there are still unanswered questions regarding its investigation, a need for novel analytical tools emerge. Since immunoassays serve as one of powerful tools within the investigation of natural products, the development of indirect competitive enzyme-linked immunosorbent assay (ELISA) utilizing coating based on avidin-biotin technology is described. In our set-up of ELISA, newly synthesized biotinylated Tb served as immobilized competitor. Tb-carboxymethyloxime-bovine serum albumin (BSA) and Tb-succinoyl-BSA conjugates were used separately for immunization of rabbits. Two sets of polyclonal antibodies (RAbs) were obtained. Antibodies against Tb-succinoyl-BSA conjugate (RAb No. 206) were chosen as the best. Under optimized conditions, limit of detection and 50% intercept of our ELISA were 849pg/mL and 8.89ng/mL, respectively. The cross-reactivity (CR) was tested on 10 structurally related compounds and CR did not exceed 6.1%. The reproducibility of the system is expressed as intra- and inter-assay coefficients of variation (9.7% and 11.4%, respectively). Based on conducted experiments, we proposed the use of ELISA for quantification of Tb in complex biological matrices such as plant extracts. A method was applied to analyze three extracts obtained from different parts of L. trilobum. Data obtained were compared to those acquired by UHPLC-MS/MS. The concordance between the methods (103-87%) showed the ability of ELISA to quantify Tb.
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Affiliation(s)
- Lukáš Huml
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic
| | - Michal Jurášek
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic
| | - Petra Mikšátková
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic
| | - Tomáš Zimmermann
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic
| | - Pavla Tomanová
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic
| | - Miloš Buděšínský
- Institute of Organic Chemistry and Biochemistry, CZ-166 10 Prague, Czech Republic
| | - Zdeňka Rottnerová
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic
| | - Markéta Šimková
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic
| | - Juraj Harmatha
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic; Institute of Organic Chemistry and Biochemistry, CZ-166 10 Prague, Czech Republic
| | - Eva Kmoníčková
- Institute of Experimental Medicine, AS CR, v.v.i., CZ-142 20 Prague, Czech Republic; Charles University in Prague, Faculty of Medicine and Biomedical Center in Pilsen, CZ-301 66 Pilsen, Czech Republic
| | - Oldřich Lapčík
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic.
| | - Pavel B Drašar
- University of Chemistry and Technology Prague, Faculty of Food and Biochemical Technology [342], CZ-166 28 Prague, Czech Republic.
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Chromene stability: The most potent estrogenic compounds in White Kwao Krua (Pueraria candollei var mirifica) crude extract. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.09.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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Anti-miroestrol polyclonal antibodies: a comparison of immunogen preparations used to obtain desired antibody properties. J Nat Med 2015; 70:296-9. [PMID: 26563142 DOI: 10.1007/s11418-015-0949-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/25/2015] [Indexed: 10/22/2022]
Abstract
Immunogen quality is one important factor that contributes to desirable antibody characteristics. Highly specific antibodies against miroestrol can be used to develop a quality control immunoassay for Pueraria candollei products. In this study, we investigated how various immunogen preparations affect antibody properties. The results show that immunogen prepared using the Mannich reaction provides antibodies with higher specificity and sensitivity against miroestrol than immunogen prepared with the periodate reaction. The results suggest the Mannich reaction maintains the original structure of miroestrol and generates useful antibodies for developing immunoassays.
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Yusakul G, Udomsin O, Tanaka H, Morimoto S, Juengwatanatrakul T, Putalun W. Enzyme‐linked immunosorbent assay by enhanced chemiluminescence detection for the standardization of estrogenic miroestrol in
Pueraria candollei
Graham ex Benth. LUMINESCENCE 2014; 30:568-75. [DOI: 10.1002/bio.2787] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/09/2014] [Accepted: 09/02/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Gorawit Yusakul
- Faculty of Pharmaceutical SciencesKhon Kaen University Khon Kaen 40002 Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB)National Research University‐Khon Kaen University Khon Kaen 40002 Thailand
| | - Orapin Udomsin
- Faculty of Pharmaceutical SciencesKhon Kaen University Khon Kaen 40002 Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB)National Research University‐Khon Kaen University Khon Kaen 40002 Thailand
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical SciencesKyushu University Fukuoka 812‐8582 Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical SciencesKyushu University Fukuoka 812‐8582 Japan
| | | | - Waraporn Putalun
- Faculty of Pharmaceutical SciencesKhon Kaen University Khon Kaen 40002 Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB)National Research University‐Khon Kaen University Khon Kaen 40002 Thailand
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