1
|
Chuphol N, Nokkaew N, Makkliang F, Sae-Foo W, Phaisan S, Putalun W, Sakamoto S, Yusakul G. Immunochromatographic assay for miroestrol and deoxymiroestrol, its cross-reactivity, and application in Pueraria mirifica (white Kwao Krua) analysis. PHYTOCHEMICAL ANALYSIS : PCA 2023; 34:421-430. [PMID: 36950953 DOI: 10.1002/pca.3223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/23/2023] [Accepted: 03/07/2023] [Indexed: 06/03/2023]
Abstract
INTRODUCTION Miroestrol (Mi) and deoxymiroestrol (Dmi) are trace, yet potent, phytooestrogens found in white Kwao Krua [Pueraria candollei var. mirifica (Airy Shaw & Suvat.) Niyomdham, PM]. However, the analysis of these substances is difficult because of complex matrix effects and their various analogues. In addition, alteration in the cross-reactivity of a gold nanoparticle (AuNP)-based immunochromatographic assay (ICA) resulting from the electrostatic adsorption between antibodies and AuNPs has not yet been evaluated. OBJECTIVES This study aims to develop, characterise, and validate ICA with a monoclonal antibody exhibiting similar reactivity against Mi and Dmi (MD-mAb). MATERIALS AND METHODS The ICA performance was validated for cross-reactivity and performance in comparison with those of indirect competitive enzyme-linked immunosorbent assays (icELISAs) with MD-mAb and mAb exhibiting specificity against Mi (Mi-mAb). RESULTS The ICA showed a limit of detection (LOD) at 1 and 16 μg/mL for Mi and Dmi, respectively. The cross-reactivity of the ICA with Dmi was lower (6.25%) than that observed with the icELISA (120%). Cross-reactivity of ICA against other compounds of the PM was also correlated with those of icELISA; no false-positive/negative results were observed. The repeatability and reproducibility of the ICA were confirmed. The results obtained using ICA in samples of PM are correlated with the concentrations determined through icELISAs. CONCLUSION An ICA with MD-mAb was constructed and validated. However, direct conjugation via the electrostatic adsorption of mAb-AuNPs was expected to alter the cross-reactivity of ICA, especially that of the analyte analogue Dmi.
Collapse
Affiliation(s)
- Natthapon Chuphol
- Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla, Thailand
| | - Nuttikarn Nokkaew
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
| | - Fonthip Makkliang
- School of Languages and General Education, Walailak University, Nakhon Si Thammarat, Thailand
| | - Worapol Sae-Foo
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Suppalak Phaisan
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Seiichi Sakamoto
- Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand
- Biomass and Oil Palm Center of Excellence, Walailak University, Nakhon Si Thammarat, Thailand
| |
Collapse
|
2
|
Analysis of Isoflavones in Pueraria by UHPLC-Q-Orbitrap HRMS and Study on α-Glucosidase Inhibitory Activity. Foods 2022; 11:foods11213523. [DOI: 10.3390/foods11213523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/09/2022] Open
Abstract
Pueraria is a rich source of bioactive compounds, but there is a lack of comprehensive information concerning its composition. Therefore, a UHPLC-Q-Orbitrap HRMS method was developed to identify and quantify bioactive compounds in pueraria. Twelve isoflavones were quantified, with puerarin being the most abundant, followed by puerarin 6″-O-xyloside, 3′-methoxy puerarin, and 3′-hydroxy puerarin. A further 88 bioactive components in eight categories were also tentatively identified. The 12 isoflavones, except for genistein, exhibited α-glucosidase inhibitory activity. The binding of these compounds to the active site of α-glucosidase was confirmed via molecular docking analysis. These findings provide a basis for identifying pueraria as a promising functional food ingredient.
Collapse
|
3
|
Nuntawong P, Putalun W, Tanaka H, Morimoto S, Sakamoto S. Lateral flow immunoassay for small-molecules detection in phytoproducts: a review. J Nat Med 2022; 76:521-545. [PMID: 35171397 PMCID: PMC9165253 DOI: 10.1007/s11418-022-01605-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/29/2022] [Indexed: 11/10/2022]
Abstract
Phytoproducts are involved in various fields of industry. Small-molecule (Mw < 900 Da) organic compounds can be used to indicate the quality of plant samples in the perspective of efficacy by measuring the necessary secondary metabolites and in the perspective of safety by measuring the adulterant level of toxic compounds. The development of reliable detection methods for these compounds in such a complicated matrix is challenging. The lateral flow immunoassay (LFA) is one of the immunoassays well-known for its simplicity, portability, and rapidity. In this review, the general principle, components, format, and application of the LFA for phytoproducts are discussed.
Collapse
Affiliation(s)
- Poomraphie Nuntawong
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, 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, Khon Kaen, Thailand
| | - Hiroyuki Tanaka
- School of Pharmacy, Sanyo-Onoda City University, 1-1-1 Daigakudouri, Sanyo-onoda-shi, Yamaguchi, 756-0884, Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| |
Collapse
|
4
|
Han Q, Chen K, Su C, Liu X, Luo X. Puerarin Loaded PLGA Nanoparticles: Optimization Processes of Preparation and Anti-alcohol Intoxication Effects in Mice. AAPS PharmSciTech 2021; 22:217. [PMID: 34386832 DOI: 10.1208/s12249-021-02092-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/09/2021] [Indexed: 11/30/2022] Open
Abstract
To improve the bioavailability of puerarin in liver, the optimized preparation method of puerarin-PLGA nanoparticles (Pue-PLGA-nps) and the effect of Pue-PLGA-nps on alcoholism mice were studied. The preparation of Pue-PLGA-nps was optimized by the Box-Behnken design and response surface methodology (RSM). To estimate the anti-alcoholism of Pue-PLGA-nps in vivo, drunkenness incubation period and sober time of mice were detected, and Morris water maze (MWM) test was performed. AST, ALT, and SOD were used to determine the damages and oxidative stress in the liver, as well as histopathological observation of the liver. The optimal preparation conditions of Pue-PLGA-nps in RSM were as follows: the drug-material ratio was 1:1.4, the reaction temperature was 65°C, and the reaction time was 13 min. The drug entrapment efficiency of Pue-PLGA-nps was 90.6% and closely up to 98.9% of the standard prediction value. The results in vivo showed that the Pue-PLGA-nps significantly increased the drunkenness incubation period in comparison with the model group and decreased drunkenness sober time and landing time in MWM in comparison with the model group and puerarin group (P<0.05) . The contents of AST and ALT in the liver of Pue-PLGA-nps group were significantly lower than those of model group and Puerarin group (P<0.05), and the activity of SOD in the liver of Pue-PLGA-nps group was higher than that of model group (P<0.05). By histopathological observation, moreover, Pue-PLGA-nps significantly attenuated the impairment of the liver caused by alcoholism. In conclusion, through BBD and RSM, the process conditions of the Pue-PLGA-nps were successfully optimized. The Pue-PLGA-nps exerted higher bioavailability and better effect of anti-alcoholism than puerarin, indicating PLGA nanoparticles could be potential to deliver drug.
Collapse
|
5
|
Li G, Wang X, Li Q, Yang J, Liu X, Qi W, Guo J, Deng R, Zhang G. Development of an immunochromatographic strip for rapid detection of H7 subtype avian influenza viruses. Virol J 2021; 18:68. [PMID: 33827632 PMCID: PMC8025375 DOI: 10.1186/s12985-021-01537-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 03/23/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND H7N9 avian influenza virus (AIV) including highly and low pathogenic viruses have been detected in China since 2013. H7N9 AIV has a high mortality rate after infection in humans, and most human cases have close contacted with poultry in the live poultry market. Therefore, it is necessary to develop a rapid point-of-care testing (POCT) technique for H7N9 AIV detection. METHODS The H7N9 AIV was inactivated and purified, and was used as the antigen to immunize BALB/c. Twelve H7-HA specific monoclonal antibodies (McAbs) were produced through the hybridoma technique. The McAb 10A8 was conjugated with colloid gold as detecting antibody; McAb 9B6 was dispensed on the nitrocellulose membran as the capture test line and the Goat-anti mouse IgG antibody was dispensed as control line respectively. The immunochromatographic strip was prepared. RESULTS The analysis of ELISA and virus neutralization test showed that the obtained McAbs specifically recognized H7 HA. Based on the prepared strip, the detection of H7 AIV was achieved within 10 min. No cross-reaction occurred between H7 AIVs and other tested viruses. The detection limit of the strip for H7 was 2.4 log10EID50/0.1 mL for chicken swab samples. CONCLUSION The McAbs were specific for H7 and the immunochromatographic strip developed in this study was convenient, rapid and reliable for the detection of H7 AIV. The strip could provide an effective method for the rapid and early detection of H7 AIV.
Collapse
Affiliation(s)
- Ge Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 China
| | - Xun Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 China
| | - Qingmei Li
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002 China
| | - Jifei Yang
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002 China
| | - Xiao Liu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 China
| | - Wenbao Qi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510000 China
| | - Junqing Guo
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002 China
| | - Ruiguang Deng
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002 China
| | - Gaiping Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002 China
- Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002 China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, 225009 China
| |
Collapse
|
6
|
Expression of actively soluble antigen-binding fragment (Fab) antibody and GFP fused Fab in the cytoplasm of the engineered Escherichia coli. Mol Biol Rep 2020; 47:4519-4529. [PMID: 32394307 DOI: 10.1007/s11033-020-05502-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 05/06/2020] [Indexed: 01/11/2023]
Abstract
The expression of recombinant antibody fragments in the cytoplasmic space of Escherichia coli and the refolding process for restoring the structure and activity of such antibodies are not efficient. Herein, fragment antigen-binding (Fab) antibodies against miroestrol and deoxymiroestrol (MD-Fab) and their fusions with a green fluorescent protein (GFP) were expressed. The reactive MD-Fabs were successfully expressed as soluble and active forms in the cytoplasm of the SHuffle® T7 E. coli strain. Regarding the construct of MD-Fab alone, VH-CH1 could associate VL-CL into Fab in the oxidizing cytoplasm of the E. coli strain, and no additional in vitro refolding was needed. In the case of the fusions with GFP, when the C-terminus of VH-CH1 was linked with the N-terminus of GFP, the MD-Fab binding reactivity was retained, but the fluorescent activity of GFP interfered. When the C-terminus of GFP was linked to the N-terminus of VL-CL, the binding activity of MD-Fab was not observed. The constructed MD-Fabs had higher specificity toward deoxymiroestrol than the parental monoclonal antibody clone 12G11. In conclusion, MD-Fabs could be expressed using SHuffle® T7 E. coli cells. This process could be considered an economical, productive, and effective method to produce antibody fragments for immunoassay techniques.
Collapse
|
7
|
Development of a colloidal gold-based immunochromatographic strip test using two monoclonal antibodies to detect H7N9 avian influenza virus. Virus Genes 2020; 56:396-400. [PMID: 32034616 DOI: 10.1007/s11262-020-01742-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 01/31/2020] [Indexed: 12/14/2022]
Abstract
H7N9 low pathogenic avian influenza viruses (AIVs) emerged in China in 2013 and mutated into highly pathogenic strains in 2017, causing disease in infected birds and humans. Thus, the development of rapid, specific, and sensitive detection methods is urgently required. Herein, two specific monoclonal antibodies against H7N9 AIV were produced to develop a colloidal gold-based immunochromatographic test strip to detect H7N9 AIV. High specificity, repeatability, and sensitivity were achieved, with a detection limit of two hemagglutinin units or 102.55 50% tissue culture infective dose. This assay may represent a powerful tool to rapidly detect H7N9 influenza viruses in the future.
Collapse
|