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Imtiaz F, Islam M, Saeed H, Ahmed A, Rathore HA. Assessment of the antidiabetic potential of extract and novel phytoniosomes formulation of Tradescantia pallida leaves in the alloxan-induced diabetic mouse model. FASEB J 2023; 37:e22818. [PMID: 36856606 DOI: 10.1096/fj.202201395rr] [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: 08/28/2022] [Revised: 12/30/2022] [Accepted: 01/30/2023] [Indexed: 03/02/2023]
Abstract
Diabetes inflicts health and economic burdens on communities and the present antidiabetic therapies have several drawbacks. Tradescantia pallida leaves have been used as a food colorant and food preservative; however, to our knowledge antidiabetic potential of the leaves of T. pallida has not been explored yet. The current study aimed to investigate the antidiabetic potential of T. pallida leaves extract and its comparison with the novel nisosome formulation of the extract. The leaves extract and phytoniosomes of T. pallida in doses of 15, 25 and 50 mg/kg were used to assess the oral glucose loaded, and alloxan-induced diabetic mice models. The biological parameters evaluated were; change in body weight, blood biochemistry, relative organ to body weight ratio and histopathology of the liver, pancreas and kidney. Results revealed that the extract 50 mg/kg and phytoniosomes 25 and 50 mg/kg remarkably reduced the blood glucose level in all hyperglycemic mice by possibly inhibiting α-amylase and α-glucosidase production. Body weight and blood biochemical parameters were considerably improved in phytoniosomes 50 mg/kg treated group. The relative body weight was similar to those of healthy mice in extract 50 mg/kg, phytoniosomes 25 mg/kg, and phytoniosomes 50 mg/kg treated groups. Histopathology showed the regeneration of cells in the CHN50 treated group. Hyphenated chromatographic analysis revealed potent metabolites, which confirmed the antidiabetic potential of the extract by inhibiting α-amylase and α-glucosidase using in silico analysis. The present data suggested that phytoniosomes have shown better antidiabetic potential than crude extract of these leaves.
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Affiliation(s)
- Fariha Imtiaz
- Section of Pharmaceutical Chemistry, Punjab University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan
| | - Muhammad Islam
- Section of Pharmaceutical Chemistry, Punjab University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan
| | - Hamid Saeed
- Section of Pharmaceutics, Punjab University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan
| | - Abrar Ahmed
- Section of Pharmacognosy, Punjab University College of Pharmacy, Allama Iqbal Campus, University of the Punjab, Lahore, Pakistan
| | - Hassaan Anwer Rathore
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
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Feng J, Deng Y, Fu M, Hu X, Luo W, Lu Z, Dai L, Yang H, Zhao X, Du Z, Wen B, Jiang L, Zhou D, Jiao J, Xiong X. Construction of a Live-Attenuated Vaccine Strain of Yersinia pestis EV76-B-SHUΔ pla and Evaluation of Its Protection Efficacy in a Mouse Model by Aerosolized Intratracheal Inoculation. Front Cell Infect Microbiol 2020; 10:473. [PMID: 33014895 PMCID: PMC7509399 DOI: 10.3389/fcimb.2020.00473] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/31/2020] [Indexed: 12/15/2022] Open
Abstract
Plague, which is caused by Yersinia pestis, is one of the most dangerous infectious diseases. No FDA-approved vaccine against plague is available for human use at present. To improve the immune safety of Y. pestis EV76 based live attenuated vaccine and to explore the feasibility of aerosolized intratracheal inoculation (i.t.) route for vaccine delivery, a plasminogen activator protease (pla) gene deletion mutant of the attenuated Y. pestis strain EV76-B-SHU was constructed, and its residual virulence and protective efficacy were evaluated in a mouse model via aerosolized intratracheal inoculation (i.t.) or via subcutaneous injection (s.c.). The residual virulence of EV76-B-SHUΔpla was significantly reduced compared to that of the parental strain EV76-B-SHU following i.t. and s.c. infection. The EV76-B-SHUΔpla induced higher levels of mucosal antibody sIgA in the bronchoalveolar lavage fluid of mice immunized by i.t. but not by s.c.. Moreover, after lethal challenge with Y. pestis biovar Microtus strain 201 (avirulent in humans), the protective efficacy and bacterial clearance ability of the EV76-B-SHUΔpla-i.t. group were comparable to those of the EV76-B-SHUΔpla-s.c. and EV76-B-SHU immunized groups. Thus, the EV76-B-SHUΔpla represents an excellent live-attenuated vaccine candidate against pneumonic plague and aerosolized i.t. represents a promising immunization route in mouse model.
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Affiliation(s)
- Junxia Feng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China.,Capital Institute of Pediatrics, Beijing, China
| | - Yingying Deng
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Mengjiao Fu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xueyuan Hu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Wenbo Luo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Zhiyu Lu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | | | - Huiying Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xiaodong Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Zongmin Du
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Bohai Wen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Lingxiao Jiang
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Dongsheng Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Jun Jiao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Xiaolu Xiong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
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Feng J, Hu X, Fu M, Dai L, Yu Y, Luo W, Zhao Z, Lu Z, Du Z, Zhou D, Wen B, Jiao J, Xiong X. Enhanced protection against Q fever in BALB/c mice elicited by immunization of chloroform-methanol residue of Coxiella burnetii via intratracheal inoculation. Vaccine 2019; 37:6076-6084. [PMID: 31477436 DOI: 10.1016/j.vaccine.2019.08.041] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 08/07/2019] [Accepted: 08/19/2019] [Indexed: 12/11/2022]
Abstract
Human Q fever is recognized as a worldwide public health problem. It often occurs by inhalation of airborne aerosols contaminated with Coxiella burnetii, a gram-negative intracellular bacterium, mainly from domestic livestock. In this study, we analyzed the possibility to establish mucosal and systemic immunity against C. burnetii infection using a pulmonary delivery of chloroform-methanol residue of C. burnetii (CMR) vaccine. Mice were immunized by the intratracheal inoculation of CMR (IT-CMR) or the subcutaneous injection of CMR (SC-CMR), and the immunized mice were challenged with C. burnetii by the intratracheal route. The levels of IFN-γ, IL-12p70, IL-5, and IL-4 in the IT-CMR group in splenic T cells stimulated ex vivo were significantly higher than in the SC-CMR group. Significantly elevated sIgA to C. burnetii was detected in the bronchoalveolar lavage fluid of mice immunized by IT-CMR but not by SC-CMR, which might have contributed to the significant reduction in C. burnetii load and pathological lesions in the lungs of the mice after the challenge of C. burnetii. These results suggest that compared with SC-CMR in mice, IT-CMR was more efficient to elicit cellular and lung mucosal immune responses against aerosol infection of C. burnetii.
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Affiliation(s)
- Junxia Feng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Xueyuan Hu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Mengjiao Fu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Lupeng Dai
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Yonghui Yu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Wenbo Luo
- Anhui Medical University, Mei-Shan Road, Hefei, Anhui 230032, China
| | - Zengming Zhao
- Center for Disease Control and Prevention of Chinese People's Liberation Army, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Zhiyu Lu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Zongmin Du
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Dongsheng Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Bohai Wen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China
| | - Jun Jiao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China.
| | - Xiaolu Xiong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20(#) Dong-Dia-Jie Street, Fengtai, Beijing 100071, China.
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Encapsulation of Holy Basil Essential Oil in Gelatin: Effects of Palmitic Acid in Carboxymethyl Cellulose Emulsion Coating on Antioxidant and Antimicrobial Activities. FOOD BIOPROCESS TECH 2016. [DOI: 10.1007/s11947-016-1756-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Albumin-based potential drugs: focus on half-life extension and nanoparticle preparation. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2016. [DOI: 10.1007/s40005-016-0250-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Sun Y, Wang M, Sun B, Li F, Liu S, Zhang Y, Zhou Y, Chen Y, Kong W. An Investigation into the Gastrointestinal Stability of Exenatide in the Presence of Pure Enzymes, Everted Intestinal Rings and Intestinal Homogenates. Biol Pharm Bull 2016; 39:42-8. [DOI: 10.1248/bpb.b15-00442] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yanan Sun
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
| | - Mengshu Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
- Changchun BCHT Biopharm Co., Ltd
| | - Bingxue Sun
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
| | - Feng Li
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
| | - Shubo Liu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
| | - Yong Zhang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
- Key Laboratory for Molecular Enzymology and Engineering, the Ministry of Education, School of Life Sciences, Jilin University
| | - Yan Zhou
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
- Key Laboratory for Molecular Enzymology and Engineering, the Ministry of Education, School of Life Sciences, Jilin University
| | - Yan Chen
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
- Key Laboratory for Molecular Enzymology and Engineering, the Ministry of Education, School of Life Sciences, Jilin University
| | - Wei Kong
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University
- Key Laboratory for Molecular Enzymology and Engineering, the Ministry of Education, School of Life Sciences, Jilin University
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Zhang H, Huang S, Yang X, Zhai G. Current research on hyaluronic acid-drug bioconjugates. Eur J Med Chem 2014; 86:310-7. [PMID: 25173850 DOI: 10.1016/j.ejmech.2014.08.067] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 08/04/2014] [Accepted: 08/25/2014] [Indexed: 02/04/2023]
Abstract
Hyaluronic acid (HA) is a mucopolysaccharide acid composed of repeating disaccharide units of D-glucuronic acid and N-acetyl-D-glucosamine. Based on numerous characteristics such as viscoelastic properties, water-binding ability, biocompatibility and non-immunogenicity, HA has been approved by FDA for biological and medical applications. In addition, multifarious receptors of HA like CD44, RHAMM and TSG6 are over-expressed on the surface of malignant cells, which play important roles in targeting ability. Bioconjugates linking drugs to HA could improve solubility, prolong half-life, provide active targeting capability and then increase the bioavailability of these coupled drugs by pro-drug strategy. Therefore, a large number of HA-drug bioconjugates have been studied. The purpose of this review was to summarize these HA-drug bioconjugates and further discuss synthetic methods and the relevant application in pharmaceuticals.
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Affiliation(s)
- Haiqun Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shandong University, 44 Wenhua Xilu, Jinan 250012, China.
| | - Siling Huang
- Bloomage Freda Biopharm Co., Ltd., Jinan 250101, China
| | - Xiaoye Yang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shandong University, 44 Wenhua Xilu, Jinan 250012, China
| | - Guangxi Zhai
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shandong University, 44 Wenhua Xilu, Jinan 250012, China.
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Siekmeier R, Hofmann T, Scheuch G, Pokorski M. Aerosolized GLP-1 for treatment of diabetes mellitus and irritable bowel syndrome. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 849:23-38. [PMID: 25427821 DOI: 10.1007/5584_2014_94] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Diabetes is a global burden and the prevalence of the disease, in particular diabetes mellitus type 2 is rapidly increasing worldwide. After introduction of insulin into clinical therapy about 90 years ago a major number of pharmaceuticals has been developed for treatment of diabetes mellitus type 2. One of these, the incretin glucagon-like peptide 1 (GLP-1), like insulin, needs subcutaneous administration causing inconvenience to patients. However, administration of GLP-1 plays also a role for treatment of irritable bowel syndrome (IBS). To improve patient convenience inhaled insulin (Exubera(®)) was developed and approved but failed market acceptance some years ago. Recently, another inhalative insulin (Afrezza(®)) received market approval and GLP-1 may serve as another candidate drug for inhalative administration. This review analyzes the current literature investigating alternative administration of GLP-1 and GLP-1 analogs focusing on inhalation. Several formulations for inhalative administration of GLP-1 and analogs were investigated in animal studies, whereas there are only few clinical data. However, feasibility of GLP-1 inhalation has been shown and should be further investigated as such type of drug administration may serve for improvement of therapy in patients with diabetes mellitus or irritable bowel syndrome.
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Affiliation(s)
- Rüdiger Siekmeier
- Drug Regulatory Affairs, Pharmaceutical Institute, Bonn University, An der Immenburg 4, 53121, Bonn, Germany,
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Lee C, Choi JS, Kim I, Oh KT, Lee ES, Park ES, Lee KC, Youn YS. Long-acting inhalable chitosan-coated poly(lactic-co-glycolic acid) nanoparticles containing hydrophobically modified exendin-4 for treating type 2 diabetes. Int J Nanomedicine 2013; 8:2975-83. [PMID: 23976850 PMCID: PMC3746731 DOI: 10.2147/ijn.s48197] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Inhalable glycol chitosan-coated poly(lactic-co-glycolic acid) (PLGA) nanoparticles containing palmitic acid-modified exendin-4 (Pal-Ex4) (chitosan Pal-Ex4 PLGA NPs) were prepared and characterized. The surface morphology, particle size, and zeta potential of chitosan Pal-Ex4 PLGA NPs were investigated, and the adsorption and cytotoxicity of chitosan Pal-Ex4 PLGA NPs were evaluated in human lung epithelial cells (A549). Finally, the lung deposition characteristics and hypoglycemia caused by chitosan Pal-Ex4 PLGA NPs were evaluated after pulmonary administration in imprinting control region (ICR) and type 2 diabetic db/db mice. Results showed that chitosan Pal-Ex4 PLGA NPs were spherical, compact and had a diameter of ~700 nm and a positive surface charge of +28.5 mV Chitosan-coated PLGA NPs were adsorbed onto A549 cells much more so than non-coated PLGA NPs. Pal-Ex4 release from chitosan-coated PLGA NPs was delayed by as much as 1.5 days as compared with chitosan-coated Ex4 PLGA NPs. In addition, chitosan-coated PLGA NPs remained in the lungs for ~72 hours after pulmonary administration, whereas most non-coated PLGA NPs were lost at 8 hours after administration. Furthermore, the hypoglycemic efficacy of inhaled chitosan Pal-Ex4 PLGA NPs was 3.1-fold greater than that of chitosan Ex4 PLGA NPs in db/db mice. The authors believe chitosan Pal-Ex4 PLGA NPs have considerable potential as a long-acting inhalation delivery system for the treatment of type 2 diabetes.
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Affiliation(s)
- Changkyu Lee
- School of Pharmacy, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea
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